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Code Issues Releases Wiki Activity

Initial implementation of ad-hoc commands. SMACK-242

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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@10453 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Gaston Dombiak 2008-05-28 18:59:52 +00:00 committed by gato
parent babc992e11
commit 8d07e07379
10 changed files with 2088 additions and 1 deletions
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1
build/resources/META-INF/smack-config.xml
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@ -11,6 +11,7 @@
<className>org.jivesoftware.smackx.filetransfer.FileTransferManager</className> <className>org.jivesoftware.smackx.filetransfer.FileTransferManager</className>
<className>org.jivesoftware.smackx.LastActivityManager</className> <className>org.jivesoftware.smackx.LastActivityManager</className>
<className>org.jivesoftware.smack.ReconnectionManager</className> <className>org.jivesoftware.smack.ReconnectionManager</className>
<className>org.jivesoftware.smackx.commands.AdHocCommandManager</className>
</startupClasses> </startupClasses>
<!-- Paket reply timeout in milliseconds --> <!-- Paket reply timeout in milliseconds -->

43
build/resources/META-INF/smack.providers
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@ -218,4 +218,47 @@
<className>org.jivesoftware.smack.provider.PrivacyProvider</className> <className>org.jivesoftware.smack.provider.PrivacyProvider</className>
</iqProvider> </iqProvider>
<!-- Ad-Hoc Command -->
<iqProvider>
<elementName>command</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider</className>
</iqProvider>
<extensionProvider>
<elementName>bad-action</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider$BadActionError</className>
</extensionProvider>
<extensionProvider>
<elementName>malformed-actionn</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider$MalformedActionError</className>
</extensionProvider>
<extensionProvider>
<elementName>bad-locale</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider$BadLocaleError</className>
</extensionProvider>
<extensionProvider>
<elementName>bad-payload</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider$BadPayloadError</className>
</extensionProvider>
<extensionProvider>
<elementName>bad-sessionid</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider$BadSessionIDError</className>
</extensionProvider>
<extensionProvider>
<elementName>session-expired</elementName>
<namespace>http://jabber.org/protocol/commands</namespace>
<className>org.jivesoftware.smackx.provider.AdHocCommandDataProvider$SessionExpiredError</className>
</extensionProvider>
</smackProviders> </smackProviders>

2
source/org/jivesoftware/smackx/Form.java
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@ -78,7 +78,7 @@ public class Form {
* *
* @param dataForm the data form used for gathering data. * @param dataForm the data form used for gathering data.
*/ */
private Form(DataForm dataForm) { public Form(DataForm dataForm) {
this.dataForm = dataForm; this.dataForm = dataForm;
} }

468
source/org/jivesoftware/smackx/commands/AdHocCommand.java Executable file
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@ -0,0 +1,468 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.commands;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.packet.XMPPError;
import org.jivesoftware.smackx.Form;
import org.jivesoftware.smackx.packet.AdHocCommandData;
import java.util.List;
/**
* An ad-hoc command is responsible for executing the provided service and
* storing the result of the execution. Each new request will create a new
* instance of the command, allowing information related to executions to be
* stored in it. For example suppose that a command that retrieve the list of
* users of a server is implemented. When the command is executed it gets that
* list and the result is stored as a form in the command instance, i.e. the
* <code>getForm</code> method retrieves a form with all the users.
* <p>
* Each command has a <tt>node</tt> that should be unique within a given JID.
* <p>
* Commands may have zero or more stages. Each stage is usually used for
* gathering information required for the command execution. Users are able to
* move forward or backward across the different stages. Commands may not be
* cancelled while they are being executed. However, users may request the
* "cancel" action when submitting a stage response indicating that the command
* execution should be aborted. Thus, releasing any collected information.
* Commands that require user interaction (i.e. have more than one stage) will
* have to provide the data forms the user must complete in each stage and the
* allowed actions the user might perform during each stage (e.g. go to the
* previous stage or go to the next stage).
* <p>
* All the actions may throw an XMPPException if there is a problem executing
* them. The <code>XMPPError</code> of that exception may have some specific
* information about the problem. The possible extensions are:
*
* <li><i>malformed-action</i>. Extension of a <i>bad-request</i> error.</li>
* <li><i>bad-action</i>. Extension of a <i>bad-request</i> error.</li>
* <li><i>bad-locale</i>. Extension of a <i>bad-request</i> error.</li>
* <li><i>bad-payload</i>. Extension of a <i>bad-request</i> error.</li>
* <li><i>bad-sessionid</i>. Extension of a <i>bad-request</i> error.</li>
* <li><i>session-expired</i>. Extension of a <i>not-allowed</i> error.</li>
* <p>
* See the <code>SpecificErrorCondition</code> class for detailed description
* of each one.
* <p>
* Use the <code>getSpecificErrorConditionFrom</code> to obtain the specific
* information from an <code>XMPPError</code>.
*
* @author Gabriel Guardincerri
*
*/
public abstract class AdHocCommand {
// TODO Analize the redesign of command by having an ExecutionResponse as a
// result to the execution of every action. That result should have all the
// information related to the execution, e.g. the form to fill. Maybe this
// design is more intuitive and simpler than the current one that has all in
// one class.
private AdHocCommandData data;
public AdHocCommand() {
super();
data = new AdHocCommandData();
}
/**
* Returns the specific condition of the <code>error</code> or null if the
* error doesn't have any.
*
* @param error
* the error the get the specific condition from
* @return the specific condition of this error, or null if it doesn't have
* any.
*/
public static SpecificErrorCondition getSpecificErrorConditionFrom(
XMPPError error) {
// This method is implemented to provied an easy way of getting a packet
// extension of the XMPPError.
for (SpecificErrorCondition condition : SpecificErrorCondition.values()) {
if (error.getExtension(condition.toString(),
AdHocCommandData.SpecificError.namespace) != null) {
return condition;
}
}
return null;
}
/**
* Set the the human readable name of the command, usually used for
* displaying in a UI.
*
* @param name
*/
public void setName(String name) {
data.setName(name);
}
/**
* Returns the human readable name of the command.
*
* @return the human readable name of the command
*/
public String getName() {
return data.getName();
}
/**
* Sets the unique identifier of the command. This value must be unique for
* the <code>OwnerJID</code>.
*
* @param node
* the unique identifier of the command
*/
public void setNode(String node) {
data.setNode(node);
}
/**
* Returns the unique identifier of the command. It is unique for the
* <code>OwnerJID</code>.
*
* @return the unique identifier of the command
*/
public String getNode() {
return data.getNode();
}
/**
* Gets the full JID of the owner of this command. This JID is the "to" of a
* execution request.
*
* @return
*/
public abstract String getOwnerJID();
/**
* Returns the notes that the command has at the current stage.
*
* @return a list of notes.
*/
public List<AdHocCommandNote> getNotes() {
return data.getNotes();
}
/**
* Adds a note to the current stage. This should be used when setting a
* response to the execution of an action. All the notes added here are
* returned by the <code>getNotes</code> method during the current stage.
* Once the stage changes all the notes are discarded.
*
* @param note
*/
protected void addNote(AdHocCommandNote note) {
data.addNote(note);
}
/**
* Returns the form of the current stage. Usually it is the form that must
* be answered to execute the next action. If that is the case it should be
* used by the requester to fill all the information that the executor needs
* to continue to the next stage. It can also be the result of the
* execution.
*
* @return the form of the current stage to fill out or the result of the
* execution.
*/
public Form getForm() {
if (data.getForm() == null) {
return null;
} else {
return new Form(data.getForm());
}
}
/**
* Sets the form of the current stage. This should be used when setting a
* response. It could be a form to fill out the information needed to go to
* the next stage or the result of an execution.
*
* @param form
* the form of the current stage to fill out or the result of the
* execution.
*/
protected void setForm(Form form) {
data.setForm(form.getDataFormToSend());
}
/**
* Executes the command. This is invoked only on the first stage of the
* command. It is invoked on every command. If there is a problem executing
* the command it throws an XMPPException.
*
* @throws XMPPException
* if there is a problem executing the command.
*/
public abstract void execute() throws XMPPException;
/**
* Executes the next action of the command with the information provided in
* the <code>response</code>. This form must be the answer form of the
* previous stage. This method will be only invoked for commands that have 1
* or more stages. If there is a problem executing the command it throws an
* XMPPException.
*
* @param response
* the form answer of the previous stage.
* @throws XMPPException
* if there is a problem executing the command.
*/
public abstract void next(Form response) throws XMPPException;
/**
* Completes the command execution with the information provided in the
* <code>response</code>. This form must be the answer form of the
* previous stage. This method will be only invoked for commands that have 1
* or more stages. If there is a problem executing the command it throws an
* XMPPException.
*
* @param response
* the form answer of the previous stage.
* @throws XMPPException
* if there is a problem executing the command.
*/
public abstract void complete(Form response) throws XMPPException;
/**
* Goes to the previous stage. The requester is asking to re-send the
* information of the previous stage. The command must change it state to
* the previous one. If there is a problem executing the command it throws
* an XMPPException.
*
* @throws XMPPException
* if there is a problem executing the command.
*/
public abstract void prev() throws XMPPException;
/**
* Cancels the execution of the command. This can be invoked on any stage of
* the execution. If there is a problem executing the command it throws an
* XMPPException.
*
* @throws XMPPException
* if there is a problem executing the command.
*/
public abstract void cancel() throws XMPPException;
/**
* Returns a collection with the allowed actions based on the current stage
* Possible actions are: <tt>prev</tt>, <tt>next</tt> and
* <tt>complete</tt>. This method will be only invoked for commands that
* have 1 or more stages.
*
* @return a collection with the allowed actions based on the current stage
* as defined in the SessionData.
*/
protected List<Action> getActions() {
return data.getActions();
}
/**
* Add an action to the current stage available actions. This should be used
* when creating a response.
*
* @param action
*/
protected void addActionAvailable(Action action) {
data.addAction(action);
}
/**
* Returns which of the actions available for the current stage is
* considered the equivalent to "execute". When the requester sends his
* reply, if no action was defined in the command then the action will be
* assumed "execute" thus assuming the action returned by this method. This
* method will never be invoked for commands that have no stages.
*
* @return which of the actions available for the current stage is
* considered the equivalent to "execute".
*/
protected Action getExecuteAction() {
return data.getExecuteAction();
}
/**
* Returns which of the actions available for the current stage is
* considered the equivalent to "execute". This should be used when setting
* a response. When the requester sends his reply, if no action was defined
* in the command then the action will be assumed "execute" thus assuming
* the action returned by this method.
*
* @param action
*/
protected void setExecuteAction(Action action) {
data.setExecuteAction(action);
}
/**
* Returns the status of the current stage.
*
* @return
*/
public Status getStatus() {
return data.getStatus();
}
/**
* Sets the data of the current stage. This should not used.
*
* @param data
*/
void setData(AdHocCommandData data) {
this.data = data;
}
/**
* Gets the data of the current stage. This should not used.
*
* @param data
*/
AdHocCommandData getData() {
return data;
}
/**
* Returns if the <code>action</code> is available in the current stage.
* The <code>Action.cancel</code> is always allowed. To define the
* available actions use the <code>addActionAvailable</code> method.
*
* @param action
* The action to check if it is available.
* @return True if the action is available for the current stage.
*/
protected boolean isValidAction(Action action) {
return getActions().contains(action) || Action.cancel.equals(action);
}
public enum Status {
/**
* The command is being executed.
*/
executing,
/**
* The command has completed. The command session has ended.
*/
completed,
/**
* The command has been canceled. The command session has ended.
*/
canceled
}
public enum Action {
/**
* The command should be executed or continue to be executed. This is
* the default value.
*/
execute,
/**
* The command should be canceled.
*/
cancel,
/**
* The command should be digress to the previous stage of execution.
*/
prev,
/**
* The command should progress to the next stage of execution.
*/
next,
/**
* The command should be completed (if possible).
*/
complete,
/**
* The action is unknow. This is used when a recieved message has an
* unknown action. It must not be used to send an execution request.
*/
unknown;
}
public enum SpecificErrorCondition {
/**
* The responding JID cannot accept the specified action.
*/
badAction,
/**
* The responding JID does not understand the specified action.
*/
malformedAction,
/**
* The responding JID cannot accept the specified language/locale.
*/
badLocale,
/**
* The responding JID cannot accept the specified payload (e.g. the data
* form did not provide one or more required fields).
*/
badPayload,
/**
* The responding JID cannot accept the specified sessionid.
*/
badSessionid,
/**
* The requesting JID specified a sessionid that is no longer active
* (either because it was completed, canceled, or timed out).
*/
sessionExpired;
public String toString() {
String result = null;
switch (this) {
case badAction:
result = "bad-action";
break;
case malformedAction:
result = "malformed-action";
break;
case badLocale:
result = "bad-locale";
break;
case badPayload:
result = "bad-payload";
break;
case badSessionid:
result = "bad-sessionid";
break;
case sessionExpired:
result = "session-expired";
break;
}
return result;
}
}
}

725
source/org/jivesoftware/smackx/commands/AdHocCommandManager.java Executable file
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@ -0,0 +1,725 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.commands;
import org.jivesoftware.smack.*;
import org.jivesoftware.smack.filter.PacketFilter;
import org.jivesoftware.smack.filter.PacketTypeFilter;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smack.packet.XMPPError;
import org.jivesoftware.smack.util.StringUtils;
import org.jivesoftware.smackx.Form;
import org.jivesoftware.smackx.NodeInformationProvider;
import org.jivesoftware.smackx.ServiceDiscoveryManager;
import org.jivesoftware.smackx.commands.AdHocCommand.Action;
import org.jivesoftware.smackx.commands.AdHocCommand.Status;
import org.jivesoftware.smackx.packet.AdHocCommandData;
import org.jivesoftware.smackx.packet.DiscoverInfo;
import org.jivesoftware.smackx.packet.DiscoverInfo.Identity;
import org.jivesoftware.smackx.packet.DiscoverItems;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* An AdHocCommandManager is responsible for keeping the list of available
* commands offered by a service and for processing commands requests.
* Typically, instances of this class are private to the service offering ad-hoc
* commands.
*
* @author Gabriel Guardincerri
*/
public class AdHocCommandManager {
private final static String discoNamespace = "http://jabber.org/protocol/commands";
private final static String discoNode = discoNamespace;
/**
* The session time out in seconds.
*/
public static int SESSION_TIMEOUT = 2 * 60;
/**
* Map a XMPPConnection with it AdHocCommandManager. This map have a pair
* key-value for every active connection.
*/
private static Map<XMPPConnection, AdHocCommandManager> instances = new ConcurrentHashMap<XMPPConnection, AdHocCommandManager>();
private static Thread sessionsSweeper;
/**
* The XMPPConnection that this instances of AdHocCommandManager manages
*/
private XMPPConnection connection;
/**
* Map a command node with its AdHocCommandInfo. Note: Key=command node,
* Value=command. Command node matches the node attribute sent by command
* requesters.
*/
private Map<String, AdHocCommandInfo> commands = new ConcurrentHashMap<String, AdHocCommandInfo>();
/**
* Map a command session ID with the instance LocalCommand. The LocalCommand
* is the an objects that has all the information of the current state of
* the command execution. Note: Key=session ID, Value=LocalCommand. Session
* ID matches the sessionid attribute sent by command responders.
*/
private Map<String, LocalCommand> executingCommands = new ConcurrentHashMap<String, LocalCommand>();
/**
* Register the listener for all the connection creations. When a new
* connection is created a new AdHocCommandManager is also created and
* related to that connection.
*/
static {
XMPPConnection
.addConnectionCreationListener(new ConnectionCreationListener() {
public void connectionCreated(XMPPConnection connection) {
new AdHocCommandManager(connection);
}
});
}
private AdHocCommandManager(XMPPConnection connection) {
super();
this.connection = connection;
init();
}
/**
* Returns the <code>AdHocCommandManager</code> related to the
* <code>connection</code>.
*
* @param connection
* @return
*/
public static AdHocCommandManager getAddHocCommandsManager(
XMPPConnection connection) {
return instances.get(connection);
}
/**
* <li>Adds listeners to the connection</li>
* <li>Registers the ad-hoc command feature to the ServiceDiscoveryManager</li>
* <li>Registers the items of the feature</li>
* <li>Adds packet listeners to handle execution requests</li>
* <li>Creates and start the session sweeper</li>
*
*/
private void init() {
// Register the new instance and associate it with the connection
instances.put(connection, this);
// Add a listener to the connection that removes the registered instance
// when the connection is closed
connection.addConnectionListener(new ConnectionListener() {
public void connectionClosed() {
// Unregister this instance since the connection has been closed
instances.remove(connection);
}
public void connectionClosedOnError(Exception e) {
// Unregister this instance since the connection has been closed
instances.remove(connection);
}
public void reconnectionSuccessful() {
// Register this instance since the connection has been
// reestablished
instances.put(connection, AdHocCommandManager.this);
}
public void reconnectingIn(int seconds) {
// Nothing to do
}
public void reconnectionFailed(Exception e) {
// Nothing to do
}
});
// Add the feature to the service discovery manage to show that this
// connection supports the AdHoc-Commands protocol.
// This information will be used when another client tries to
// discover whether this client supports AdHoc-Commands or not.
ServiceDiscoveryManager.getInstanceFor(connection).addFeature(
discoNamespace);
// Set the NodeInformationProvider that will provide information about
// which AdHoc-Commands are registered, whenever a disco request is
// received
ServiceDiscoveryManager.getInstanceFor(connection)
.setNodeInformationProvider(discoNode,
new NodeInformationProvider() {
public List<DiscoverItems.Item> getNodeItems() {
AdHocCommandManager adHocCommandManager = AdHocCommandManager
.getAddHocCommandsManager(connection);
List<DiscoverItems.Item> answer = new ArrayList<DiscoverItems.Item>();
Collection<AdHocCommandInfo> commandsList = adHocCommandManager
.getRegisteredCommands(connection);
for (AdHocCommandInfo info : commandsList) {
DiscoverItems.Item item = new DiscoverItems.Item(
info.getOwnerJID());
item.setName(info.getName());
item.setNode(info.getNode());
answer.add(item);
}
return answer;
}
public List<String> getNodeFeatures() {
return null;
}
public List<Identity> getNodeIdentities() {
return null;
}
});
// The packet listener and the filter for processing some AdHoc Commands
// Packets
PacketListener listener = new PacketListener() {
public void processPacket(Packet packet) {
AdHocCommandData requestData = (AdHocCommandData) packet;
processAdHocCommand(requestData);
}
};
PacketFilter filter = new PacketTypeFilter(AdHocCommandData.class);
connection.addPacketListener(listener, filter);
sessionsSweeper = new Thread(new Runnable() {
public void run() {
while (true) {
for (String sessionId : executingCommands.keySet()) {
LocalCommand command = executingCommands.get(sessionId);
// Since the command could be removed in the meanwhile
// of getting the key and getting the value - by a
// processed packet. We must check if it still in the
// map.
if (command != null) {
long creationStamp = command.getCreationStamp();
// Check if the Session data has expired (default is
// 10 minutes)
// To remove it from the session list it waits for
// the double of the of time out time. This is to
// let
// the requester know why his execution request is
// not accepted. If the session is removed just
// after the time out, then whe the user request to
// continue the execution he will recieved an
// invalid session error and not a time out error.
if (System.currentTimeMillis() - creationStamp > SESSION_TIMEOUT * 1000 * 2) {
// Remove the expired session
executingCommands.remove(sessionId);
}
}
}
try {
Thread.sleep(1000);
} catch (InterruptedException ie) {
}
}
}
});
sessionsSweeper.start();
}
/**
* Process the AdHoc-Command packet that request the execution of some
* action of a command. If this is the first request, this method checks,
* before executing the command, if:
* <li>The requested command exists</li>
* <li>The requester has permissions to execute it</li>
* <li>The command has more than one stage, if so, it saves the command and
* session ID for further use</li>
*
* <br>
* <br>
* If this is not the first request, this method checks, before executing
* the command, if:
* <li>The session ID of the request was stored</li>
* <li>The session life do not exceed the time out</li>
* <li>The action to execute is one of the available actions</li>
*
* @param requestData
* the packet to process.
*/
private void processAdHocCommand(AdHocCommandData requestData) {
// Only process requests of type SET
if (requestData.getType() != IQ.Type.SET) {
return;
}
// Creates the response with the corresponding data
AdHocCommandData response = new AdHocCommandData();
response.setTo(requestData.getFrom());
response.setPacketID(requestData.getPacketID());
response.setNode(requestData.getNode());
response.setId(requestData.getTo());
String sessionId = requestData.getSessionID();
String commandNode = requestData.getNode();
if (sessionId == null) {
// A new execution request has been received. Check that the
// command exists
if (!commands.containsKey(commandNode)) {
// Requested command does not exist so return
// item_not_found error.
respondError(response, XMPPError.Condition.item_not_found);
return;
}
// Create new session ID
sessionId = StringUtils.randomString(15);
try {
// Create a new instance of the command with the
// corresponding sessioid
LocalCommand command = newInstanceOfCmd(commandNode, sessionId);
response.setType(IQ.Type.RESULT);
command.setData(response);
// Check that the requester has enough permission.
// Answer forbidden error if requester permissions are not
// enough to execute the requested command
if (!command.hasPermission(requestData.getFrom())) {
respondError(response, XMPPError.Condition.forbidden);
return;
}
Action action = requestData.getAction();
// If the action is unknown then respond an error.
if (action != null && action.equals(Action.unknown)) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.malformedAction);
return;
}
// If the action is not execute, then it is an invalid action.
if (action != null && !action.equals(Action.execute)) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.badAction);
return;
}
// Increase the state number, so the command knows in witch
// stage it is
command.increaseStage();
// Executes the command
command.execute();
if (command.isLastStage()) {
// If there is only one stage then the command is completed
response.setStatus(Status.completed);
} else {
// Else it is still executing, and is registered to be
// available for the next call
response.setStatus(Status.executing);
executingCommands.put(sessionId, command);
}
// Sends the response packet
connection.sendPacket(response);
} catch (XMPPException e) {
// If there is an exception caused by the next, complete,
// prev or cancel method, then that error is returned to the
// requester.
XMPPError error = e.getXMPPError();
// If the error type is cancel, then the execution is
// canceled therefore the status must show that, and the
// command be removed from the executing list.
if (XMPPError.Type.CANCEL.equals(error.getType())) {
response.setStatus(Status.canceled);
executingCommands.remove(sessionId);
}
respondError(response, error);
e.printStackTrace();
}
} else {
LocalCommand command = executingCommands.get(sessionId);
// Check that a command exists for the specified sessionID
// This also handles if the command was removed in the meanwhile
// of getting the key and the value of the map.
if (command == null) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.badSessionid);
return;
}
// Check if the Session data has expired (default is 10 minutes)
long creationStamp = command.getCreationStamp();
if (System.currentTimeMillis() - creationStamp > SESSION_TIMEOUT * 1000) {
// Remove the expired session
executingCommands.remove(sessionId);
// Answer a not_allowed error (session-expired)
respondError(response, XMPPError.Condition.not_allowed,
AdHocCommand.SpecificErrorCondition.sessionExpired);
return;
}
/*
* Since the requester could send two requests for the same
* executing command i.e. the same session id, all the execution of
* the action must be synchronized to avoid inconsistencies.
*/
synchronized (command) {
Action action = requestData.getAction();
// If the action is unknown the respond an error
if (action != null && action.equals(Action.unknown)) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.malformedAction);
return;
}
// If the user didn't specify an action or specify the execute
// action then follow the actual default execute action
if (action == null || Action.execute.equals(action)) {
action = command.getExecuteAction();
}
// Check that the specified action was previously
// offered
if (!command.isValidAction(action)) {
respondError(response, XMPPError.Condition.bad_request,
AdHocCommand.SpecificErrorCondition.badAction);
return;
}
try {
// TODO Check that all the requierd fields of the form are
// filled, if not throw an exception. This will simplify the
// construction of new commands
// Since all errors were passed, the response is now a
// result
response.setType(IQ.Type.RESULT);
// Set the new data to the command.
command.setData(response);
if (Action.next.equals(action)) {
command.increaseStage();
command.next(new Form(requestData.getForm()));
if (command.isLastStage()) {
// If it is the last stage then the command is
// completed
response.setStatus(Status.completed);
} else {
// Otherwise it is still executing
response.setStatus(Status.executing);
}
} else if (Action.complete.equals(action)) {
command.increaseStage();
command.complete(new Form(requestData.getForm()));
response.setStatus(Status.completed);
// Remove the completed session
executingCommands.remove(sessionId);
} else if (Action.prev.equals(action)) {
command.decreaseStage();
command.prev();
} else if (Action.cancel.equals(action)) {
command.cancel();
response.setStatus(Status.canceled);
// Remove the canceled session
executingCommands.remove(sessionId);
}
connection.sendPacket(response);
} catch (XMPPException e) {
// If there is an exception caused by the next, complete,
// prev or cancel method, then that error is returned to the
// requester.
XMPPError error = e.getXMPPError();
// If the error type is cancel, then the execution is
// canceled therefore the status must show that, and the
// command be removed from the executing list.
if (XMPPError.Type.CANCEL.equals(error.getType())) {
response.setStatus(Status.canceled);
executingCommands.remove(sessionId);
}
respondError(response, error);
e.printStackTrace();
}
}
}
}
/**
* Responds an error with an specific condition.
*
* @param response
* the response to send
* @param condition
* the condition of the error
*/
private void respondError(AdHocCommandData response,
XMPPError.Condition condition) {
respondError(response, new XMPPError(condition));
}
/**
* Responds an error with an specific condition.
*
* @param response
* the response to send
* @param condition
* the condition of the error
*/
private void respondError(AdHocCommandData response,
XMPPError.Condition condition,
AdHocCommand.SpecificErrorCondition specificCondition) {
XMPPError error = new XMPPError(condition);
error
.addExtension(new AdHocCommandData.SpecificError(
specificCondition));
respondError(response, error);
}
/**
* Responds an error with an specific error.
*
* @param response
* the response to send
* @param condition
* the condition of the error
*/
private void respondError(AdHocCommandData response, XMPPError error) {
response.setType(IQ.Type.ERROR);
response.setError(error);
connection.sendPacket(response);
}
/**
* Creates a new instance of a command to be used by a new execution request
*
* @param commandNode
* the command node that identifies it.
* @param sessionID
* the session id of this execution.
* @return the command instance to execute.
* @throws XMPPException
* if there is problem creating the new instance
*/
private LocalCommand newInstanceOfCmd(String commandNode, String sessionID)
throws XMPPException {
// TODO Evaluate the possibility of using a factory for creating the new
// instances.
AdHocCommandInfo commandInfo = commands.get(commandNode);
LocalCommand command = null;
try {
command = (LocalCommand) commandInfo.getCmdClass().newInstance();
command.setSessionID(sessionID);
command.setName(commandInfo.getName());
command.setNode(commandInfo.getNode());
} catch (InstantiationException e) {
e.printStackTrace();
throw new XMPPException(new XMPPError(
XMPPError.Condition.interna_server_error));
} catch (IllegalAccessException e) {
e.printStackTrace();
throw new XMPPException(new XMPPError(
XMPPError.Condition.interna_server_error));
}
return command;
}
/**
* Returns the registered commands of this command manager, which is related
* to a connection.
*
* @param connection
* @return
*/
private Collection<AdHocCommandInfo> getRegisteredCommands(
XMPPConnection connection) {
return commands.values();
}
/**
* Register a new command to this command manager, which is related to a
* connection. The <code>node</code> is an unique identifier of that
* command for the connection related to this command manager. The
* <code>name</name> is the human readable name of the command.
* The <code>class</code> is the class of the command
* @param node the unique identifier of the command.
* @param name the human readable name of the command.
* @param clazz the class of the command.
*/
public void registerCommand(String node, final String name, Class clazz) {
AdHocCommandInfo commandInfo = new AdHocCommandInfo(node, name,
connection.getUser(), clazz);
commands.put(node, commandInfo);
// Set the NodeInformationProvider that will provide information about
// the added command
ServiceDiscoveryManager.getInstanceFor(connection)
.setNodeInformationProvider(node,
new NodeInformationProvider() {
public List<DiscoverItems.Item> getNodeItems() {
return null;
}
public List<String> getNodeFeatures() {
List<String> answer = new ArrayList<String>();
answer
.add("http://jabber.org/protocol/commands");
// TODO check if this service is provided by the
// current connection.
answer.add("jabber:x:data");
return answer;
}
public List<DiscoverInfo.Identity> getNodeIdentities() {
List<DiscoverInfo.Identity> answer = new ArrayList<DiscoverInfo.Identity>();
DiscoverInfo.Identity identity = new DiscoverInfo.Identity(
"automation", name);
identity.setType("command-node");
answer.add(identity);
return answer;
}
});
}
/**
* Discover the commands of an specific JID. The <code>jid</code> is a
* full JID
*
* @param jid
* the full JID to retrieve the commands for.
* @return the discovered items
* @throws XMPPException
* if the operation failed for some reason.
*/
public DiscoverItems discoverCommands(String jid) throws XMPPException {
ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager
.getInstanceFor(connection);
return serviceDiscoveryManager.discoverItems(jid, discoNode);
}
/**
* Publish the commands to an specific JID.
*
* @param jid
* the full JID to publish the commands to.
* @throws XMPPException
* if the operation failed for some reason.
*/
public void publishCommands(String jid) throws XMPPException {
ServiceDiscoveryManager serviceDiscoveryManager = ServiceDiscoveryManager
.getInstanceFor(connection);
// Collects the commands to publish as items
AdHocCommandManager adHocCommandManager = AdHocCommandManager
.getAddHocCommandsManager(connection);
DiscoverItems discoverItems = new DiscoverItems();
Collection<AdHocCommandInfo> xCommandsList = adHocCommandManager
.getRegisteredCommands(connection);
for (AdHocCommandInfo info : xCommandsList) {
DiscoverItems.Item item = new DiscoverItems.Item(info.getOwnerJID());
item.setName(info.getName());
item.setNode(info.getNode());
discoverItems.addItem(item);
}
serviceDiscoveryManager.publishItems(jid, discoNode, discoverItems);
}
/**
* Returns a command that represents an instance of a command in a remote
* host. It is used to execute remote commands. The concept is similar to
* RMI. Every invocation on this command is equivalent to an invocation in
* the remote command.
*
* @param jid
* the full JID of the host of the remote command
* @param node
* the identifier of the command
* @return a local instance equivalent to the remote command.
*/
public RemoteCommand getRemoteCommand(String jid, String node) {
return new RemoteCommand(connection, node, jid);
}
/**
* The ad-hoc command information.
*
* @author Gabriel
*
*/
private static class AdHocCommandInfo {
private String node;
private String name;
private String ownerJID;
private Class cmdClass;
public AdHocCommandInfo(String node, String name, String ownerJID,
Class cmdClass) {
this.node = node;
this.name = name;
this.ownerJID = ownerJID;
this.cmdClass = cmdClass;
}
public Class getCmdClass() {
return cmdClass;
}
public String getName() {
return name;
}
public String getNode() {
return node;
}
public String getOwnerJID() {
return ownerJID;
}
}
}

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/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.commands;
/**
* Notes can be added to a command execution response. A note has to attributes,
* one is the value or message an the other is the type of the note.
*
* @author Gabriel Guardincerri
*
*/
public class AdHocCommandNote {
private Type type;
private String value;
public AdHocCommandNote(Type type, String value) {
this.type = type;
this.value = value;
}
/**
* Returns the value or message of the note.
*
* @return the value or message of the note.
*/
public String getValue() {
return value;
}
/**
* Return the type of the note.
*
* @return the type of the note.
*/
public Type getType() {
return type;
}
/**
* The types of the notes.
*
* @author Gabriel Guardincerri
*
*/
public enum Type {
/**
* The note is informational only. This is not really an exceptional
* condition.
*/
info,
/**
* The note indicates a warning. Possibly due to illogical (yet valid)
* data.
*/
warm,
/**
* The note indicates an error. The text should indicate the reason for
* the error.
*/
error
}
}

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/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.commands;
import org.jivesoftware.smackx.packet.AdHocCommandData;
/**
* Represents a command that can be executed locally from a remote location. This
* class must be extended to implement an specific ad-hoc command. This class
* provides some useful and common useful:
* <li>Node code</li>
* <li>Node name</li>
* <li>Session ID</li>
* <li>Current Stage</li>
* <li>Available actions</li>
* <li>Default action</li>
* <p>
* To implement a new command extend this class and implement all the abstract
* methods. When implementing the actions remember that they could be invoked
* several times, and that you must use the current stage number to know what to
* do.
*
* @author Gabriel Guardincerri
*
*/
public abstract class LocalCommand extends AdHocCommand {
/**
* The time stamp of first invokation of the command. Used to implement the session timeout.
*/
private long creationStamp;
/**
* The unique ID of the execution of the command.
*/
private String sessionID;
/**
* The full JID of the host of the command.
*/
private String ownerJID;
/**
* The number of the current stage.
*/
private int currenStage;
public LocalCommand() {
super();
this.creationStamp = System.currentTimeMillis();
currenStage = -1;
}
/**
* The sessionID is an unique identifier of an execution request. This is
* automatically handled and should not be called.
*
* @param sessionID
* the unique session id of this execution
*/
public void setSessionID(String sessionID) {
this.sessionID = sessionID;
getData().setSessionID(sessionID);
}
/**
* Returns the session ID of this execution.
*
* @return the unique session id of this execution
*/
public String getSessionID() {
return sessionID;
}
/**
* Sets the JID of the command host. This is automatically handled and should
* not be called.
*
* @param ownerJID
*/
public void setOwnerJID(String ownerJID) {
this.ownerJID = ownerJID;
}
@Override
public String getOwnerJID() {
return ownerJID;
}
/**
* Returns the time in milliseconds since this command was executed for
* first time.
*
* @return
*/
public long getCreationStamp() {
return creationStamp;
}
@Override
void setData(AdHocCommandData data) {
data.setSessionID(sessionID);
super.setData(data);
}
/**
* Returns if the current stage is the last one. If it is, then the
* execution of some action will complete the execution of the command.
*
* @return true if the command is in the last stage.
*/
public abstract boolean isLastStage();
/**
* Increase the current stage number. This is automatically handled and should
* not be called.
*
*/
void increaseStage() {
currenStage++;
}
/**
* Decrease the current stage number. This is automatically handled and should
* not be called.
*
*/
void decreaseStage() {
currenStage--;
}
/**
* Returns the currently executing stage number. The first stage number is
* 0. So during the execution of the first action this method will answer 0.
*
* @return
*/
public int getCurrentStage() {
return currenStage;
}
/**
* Returns if the specified requester has permission to execute all the
* stages of this action. This is checked when the first request is received,
* if the permission is grant then the requester will be able to execute
* all the stages of the command. It is not checked again during the
* execution.
*
* @param jid
* @return true if the user has permission to execute this action
*/
public abstract boolean hasPermission(String jid);
}

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/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.commands;
import org.jivesoftware.smack.PacketCollector;
import org.jivesoftware.smack.SmackConfiguration;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.Packet;
import org.jivesoftware.smackx.Form;
import org.jivesoftware.smackx.packet.AdHocCommandData;
/**
* Represents a command that is in a remote location. Invoking one of the
* execute, next, prev, cancel or complete methods results in executing that
* action in the remote location. In response to that action the internal state
* of the this command instance will change. For example, if the command is a
* single stage command, then invoking the execute action will execute this
* action in the remote location. After that the local instance will have a
* state of "completed" and a form or notes that applies.
*
* @author Gabriel Guardincerri
*
*/
public class RemoteCommand extends AdHocCommand {
/**
* The connection that is used to execute this command
*/
private XMPPConnection connection;
/**
* The full JID of the command host
*/
private String jid;
/**
* The session ID of this execution.
*/
private String sessionID;
/**
* Creates a new RemoteCommand that uses an specific connection to execute a
* command identified by <code>node</code> in the host identified by
* <code>jid</code>
*
* @param connection
* the connection to use for the execution.
* @param node
* the identifier of the command.
* @param jid
* the JID of the host.
*/
protected RemoteCommand(XMPPConnection connection, String node, String jid) {
super();
this.connection = connection;
this.jid = jid;
this.setNode(node);
}
@Override
public void cancel() throws XMPPException {
executeAction(Action.cancel);
}
@Override
public void complete(Form form) throws XMPPException {
executeAction(Action.complete, form);
}
@Override
public void execute() throws XMPPException {
executeAction(Action.execute);
}
/**
* Executes the default action of the command with the information provided
* in the Form. This form must be the anwser form of the previous stage. If
* there is a problem executing the command it throws an XMPPException.
*
* @param response
* the form anwser of the previous stage.
* @throws XMPPException
*/
public void execute(Form form) throws XMPPException {
executeAction(Action.execute, form);
}
@Override
public void next(Form form) throws XMPPException {
executeAction(Action.next, form);
}
@Override
public void prev() throws XMPPException {
executeAction(Action.prev);
}
private void executeAction(Action action) throws XMPPException {
executeAction(action, null);
}
/**
* Executes the <code>action</codo> with the <code>form</code>.
* The action could be any of the available actions. The form must
* be the anwser of the previous stage. It can be null if it is the first stage.
* @param action the action to execute
* @param form the form with the information
* @throws XMPPException if there is a problem executing the command.
*/
private void executeAction(Action action, Form form) throws XMPPException {
// TODO Check that all the requiered fields of the form were filled, if
// not throw the corresponding exeption. This will make a faster response,
// since the request is stoped before it's sended.
AdHocCommandData data = new AdHocCommandData();
data.setType(IQ.Type.SET);
data.setTo(getOwnerJID());
data.setNode(getNode());
data.setSessionID(sessionID);
data.setAction(action);
if (form != null) {
data.setForm(form.getDataFormToSend());
}
PacketCollector collector = connection
.createPacketCollector(new PacketIDFilter(data.getPacketID()));
connection.sendPacket(data);
Packet response = collector.nextResult(SmackConfiguration
.getPacketReplyTimeout());
// Cancel the collector.
collector.cancel();
if (response == null) {
throw new XMPPException("No response from server on status set.");
}
if (response.getError() != null) {
throw new XMPPException(response.getError());
}
AdHocCommandData responseData = (AdHocCommandData) response;
this.sessionID = responseData.getSessionID();
super.setData(responseData);
}
@Override
public String getOwnerJID() {
return jid;
}
}

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/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.packet;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smackx.commands.AdHocCommand;
import org.jivesoftware.smackx.commands.AdHocCommand.Action;
import org.jivesoftware.smackx.commands.AdHocCommand.SpecificErrorCondition;
import org.jivesoftware.smackx.commands.AdHocCommandNote;
import java.util.ArrayList;
import java.util.List;
/**
* Represents the state and the request of the execution of a command.
*
* @author Gabriel Guardincerri
*
*/
public class AdHocCommandData extends IQ {
/* JID of the command host */
private String id;
/* Command name */
private String name;
/* Command identifier */
private String node;
/* Unique ID of the execution */
private String sessionID;
private List<AdHocCommandNote> notes = new ArrayList<AdHocCommandNote>();
private DataForm form;
/* Action request to be executed */
private AdHocCommand.Action action;
/* Current execution status */
private AdHocCommand.Status status;
private ArrayList<AdHocCommand.Action> actions = new ArrayList<AdHocCommand.Action>();
private AdHocCommand.Action executeAction;
private String lang;
public AdHocCommandData() {
}
@Override
public String getChildElementXML() {
StringBuilder buf = new StringBuilder();
buf.append("<command xmlns=\"http://jabber.org/protocol/commands\"");
buf.append(" node=\"").append(node).append("\"");
if (sessionID != null) {
if (!sessionID.equals("")) {
buf.append(" sessionid=\"").append(sessionID).append("\"");
}
}
if (status != null) {
buf.append(" status=\"").append(status).append("\"");
}
if (action != null) {
buf.append(" action=\"").append(action).append("\"");
}
if (lang != null) {
if (!lang.equals("")) {
buf.append(" lang=\"").append(lang).append("\"");
}
}
buf.append(">");
if (getType() == Type.RESULT) {
buf.append("<actions");
if (executeAction != null) {
buf.append(" execute=\"").append(executeAction).append("\"");
}
if (actions.size() == 0) {
buf.append("/>");
} else {
buf.append(">");
for (AdHocCommand.Action action : actions) {
buf.append("<").append(action).append("/>");
}
buf.append("</actions>");
}
}
if (form != null) {
buf.append(form.toXML());
}
for (AdHocCommandNote note : notes) {
buf.append("<note type=\"").append(note.getType().toString()).append("\">");
buf.append(note.getValue());
buf.append("</note>");
}
// TODO ERRORES
// if (getError() != null) {
// buf.append(getError().toXML());
// }
buf.append("</command>");
return buf.toString();
}
/**
* Returns the JID of the command host.
* @return
*/
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
/**
* Returns the human name of the command
* @return
*/
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
/**
* Returns the identifier of the command
* @return
*/
public String getNode() {
return node;
}
public void setNode(String node) {
this.node = node;
}
/**
* Returns the list of notes that the command has.
* @return
*/
public List<AdHocCommandNote> getNotes() {
return notes;
}
public void addNote(AdHocCommandNote note) {
this.notes.add(note);
}
public void remveNote(AdHocCommandNote note) {
this.notes.remove(note);
}
/**
* Returns the form of the command.
* @return
*/
public DataForm getForm() {
return form;
}
public void setForm(DataForm form) {
this.form = form;
}
/**
* Returns the action to execute. The action is set only on a request.
* @return
*/
public AdHocCommand.Action getAction() {
return action;
}
public void setAction(AdHocCommand.Action action) {
this.action = action;
}
/**
* Returns the status of the execution.
* @return
*/
public AdHocCommand.Status getStatus() {
return status;
}
public void setStatus(AdHocCommand.Status status) {
this.status = status;
}
public List<Action> getActions() {
return actions;
}
public void addAction(Action action) {
actions.add(action);
}
public void setExecuteAction(Action executeAction) {
this.executeAction = executeAction;
}
public Action getExecuteAction() {
return executeAction;
}
public void setSessionID(String sessionID) {
this.sessionID = sessionID;
}
public String getSessionID() {
return sessionID;
}
public static class SpecificError implements PacketExtension {
public static final String namespace = "http://jabber.org/protocol/commands";
public SpecificErrorCondition condition;
public SpecificError(SpecificErrorCondition condition) {
this.condition = condition;
}
public String getElementName() {
return condition.toString();
}
public String getNamespace() {
return namespace;
}
public SpecificErrorCondition getCondition() {
return condition;
}
public String toXML() {
StringBuffer sb = new StringBuffer();
sb.append("<").append(getElementName());
sb.append(" xmlns=\"").append(getNamespace()).append("\"/>");
return sb.toString();
}
}
}

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source/org/jivesoftware/smackx/provider/AdHocCommandDataProvider.java Executable file
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@ -0,0 +1,146 @@
/**
* $RCSfile$
* $Revision: $
* $Date: $
*
* Copyright 2005-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.provider;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smack.packet.XMPPError;
import org.jivesoftware.smack.provider.IQProvider;
import org.jivesoftware.smack.provider.PacketExtensionProvider;
import org.jivesoftware.smack.util.PacketParserUtils;
import org.jivesoftware.smackx.commands.AdHocCommand;
import org.jivesoftware.smackx.commands.AdHocCommand.Action;
import org.jivesoftware.smackx.commands.AdHocCommandNote;
import org.jivesoftware.smackx.packet.AdHocCommandData;
import org.jivesoftware.smackx.packet.DataForm;
import org.xmlpull.v1.XmlPullParser;
/**
* The AdHocCommandDataProvider parses AdHocCommandData packets.
*
* @author Gabriel Guardincerri
*/
public class AdHocCommandDataProvider implements IQProvider {
public IQ parseIQ(XmlPullParser parser) throws Exception {
boolean done = false;
AdHocCommandData adHocCommandData = new AdHocCommandData();
DataFormProvider dataFormProvider = new DataFormProvider();
int eventType;
String elementName;
String namespace;
adHocCommandData.setSessionID(parser.getAttributeValue("", "sessionid"));
adHocCommandData.setNode(parser.getAttributeValue("", "node"));
// Status
String status = parser.getAttributeValue("", "status");
if (AdHocCommand.Status.executing.toString().equalsIgnoreCase(status)) {
adHocCommandData.setStatus(AdHocCommand.Status.executing);
} else if (AdHocCommand.Status.completed.toString().equalsIgnoreCase(status)) {
adHocCommandData.setStatus(AdHocCommand.Status.completed);
} else if (AdHocCommand.Status.canceled.toString().equalsIgnoreCase(status)) {
adHocCommandData.setStatus(AdHocCommand.Status.canceled);
}
// Action
String action = parser.getAttributeValue("", "action");
if (action != null) {
Action realAction = AdHocCommand.Action.valueOf(action);
if (realAction == null || realAction.equals(Action.unknown)) {
adHocCommandData.setAction(Action.unknown);
} else {
adHocCommandData.setAction(realAction);
}
}
while (!done) {
eventType = parser.next();
elementName = parser.getName();
namespace = parser.getNamespace();
if (eventType == XmlPullParser.START_TAG) {
if (parser.getName().equals("actions")) {
String execute = parser.getAttributeValue("", "execute");
if (execute != null) {
adHocCommandData.setExecuteAction(AdHocCommand.Action.valueOf(execute));
}
} else if (parser.getName().equals("next")) {
adHocCommandData.addAction(AdHocCommand.Action.next);
} else if (parser.getName().equals("complete")) {
adHocCommandData.addAction(AdHocCommand.Action.complete);
} else if (parser.getName().equals("prev")) {
adHocCommandData.addAction(AdHocCommand.Action.prev);
} else if (elementName.equals("x") && namespace.equals("jabber:x:data")) {
adHocCommandData.setForm((DataForm) dataFormProvider.parseExtension(parser));
} else if (parser.getName().equals("note")) {
AdHocCommandNote.Type type = AdHocCommandNote.Type.valueOf(parser
.getAttributeValue("", "type"));
String value = parser.nextText();
adHocCommandData.addNote(new AdHocCommandNote(type, value));
} else if (parser.getName().equals("error")) {
XMPPError error = PacketParserUtils.parseError(parser);
adHocCommandData.setError(error);
}
} else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("command")) {
done = true;
}
}
}
return adHocCommandData;
}
public static class BadActionError implements PacketExtensionProvider {
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
return new AdHocCommandData.SpecificError(AdHocCommand.SpecificErrorCondition.badAction);
}
}
public static class MalformedActionError implements PacketExtensionProvider {
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
return new AdHocCommandData.SpecificError(AdHocCommand.SpecificErrorCondition.malformedAction);
}
}
public static class BadLocaleError implements PacketExtensionProvider {
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
return new AdHocCommandData.SpecificError(AdHocCommand.SpecificErrorCondition.badLocale);
}
}
public static class BadPayloadError implements PacketExtensionProvider {
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
return new AdHocCommandData.SpecificError(AdHocCommand.SpecificErrorCondition.badPayload);
}
}
public static class BadSessionIDError implements PacketExtensionProvider {
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
return new AdHocCommandData.SpecificError(AdHocCommand.SpecificErrorCondition.badSessionid);
}
}
public static class SessionExpiredError implements PacketExtensionProvider {
public PacketExtension parseExtension(XmlPullParser parser) throws Exception {
return new AdHocCommandData.SpecificError(AdHocCommand.SpecificErrorCondition.sessionExpired);
}
}
}