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Initial check-in of private data support. Not tested yet and will require build file support for a smackx.jar file.

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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@1994 b35dd754-fafc-0310-a699-88a17e54d16e
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Matt Tucker 2003-08-01 21:13:36 +00:00 committed by mtucker
parent 92f2652b52
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358
source/org/jivesoftware/smackx/PrivateDataManager.java Normal file
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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright (C) 2002-2003 Jive Software. All rights reserved.
* ====================================================================
* The Jive Software License (based on Apache Software License, Version 1.1)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* Jive Software (http://www.jivesoftware.com)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Smack" and "Jive Software" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact webmaster@jivesoftware.com.
*
* 5. Products derived from this software may not be called "Smack",
* nor may "Smack" appear in their name, without prior written
* permission of Jive Software.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*/
package org.jivesoftware.smackx;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.PacketCollector;
import org.jivesoftware.smack.provider.IQProvider;
import org.jivesoftware.smack.filter.PacketIDFilter;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smackx.packet.PrivateData;
import org.jivesoftware.smackx.packet.DefaultPrivateData;
import org.jivesoftware.smackx.provider.*;
import org.xmlpull.v1.XmlPullParser;
import java.beans.PropertyDescriptor;
import java.util.Map;
import java.util.Hashtable;
/**
*
* @author Matt Tucker
*/
public class PrivateDataManager {
private static Map privateDataProviders = new Hashtable();
private XMPPConnection con;
private String userID;
/**
* Returns the private data provider registered to the specified XML element name and namespace.
* For example, if a provider was registered to the element name "prefs" and the
* namespace "http://www.xmppclient.com/prefs", then the following packet would trigger
* the provider:
*
* <pre>
* &lt;iq type='result' to='joe@example.com' from='mary@example.com' id='time_1'&gt;
* &lt;query xmlns='jabber:iq:private'&gt;
* &lt;prefs xmlns='http://www.xmppclient.com/prefs'&gt;
* &lt;value1&gt;ABC&lt;/value1&gt;
* &lt;value2&gt;XYZ&lt;/value2&gt;
* &lt;/prefs&gt;
* &lt;/query&gt;
* &lt;/iq&gt;</pre>
*
* <p>Note: this method is generally only called by the internal Smack classes.
*
* @param elementName the XML element name.
* @param namespace the XML namespace.
* @return the IQ provider.
*/
public static Object getPrivateDataProvider(String elementName, String namespace) {
String key = getProviderKey(elementName, namespace);
return privateDataProviders.get(key);
}
/**
* Adds a private data provider with the specified element name and name space. The provider
* will override any providers loaded through the classpath.
*
* @param elementName the XML element name.
* @param namespace the XML namespace.
* @param provider the IQ provider.
*/
public static void addIQProvider(String elementName, String namespace,
IQProvider provider)
{
String key = getProviderKey(elementName, namespace);
privateDataProviders.put(key, provider);
}
/**
* Creates a new private data manager.
*
* @param con an XMPPConnection.
*/
public PrivateDataManager(XMPPConnection con) {
this.con = con;
this.userID = con.getUsername() + "@" + con.getHost();
}
/**
* Returns the private data specified by the given element name and namespace.
*
* @param elementName the element name.
* @param namespace the namespace.
* @return the private data.
* @throws XMPPException
*/
public PrivateData getPrivateData(final String elementName, final String namespace)
throws XMPPException
{
// Create an IQ packet to get the private data.
IQ privateDataGet = new IQ() {
public String getChildElementXML() {
StringBuffer buf = new StringBuffer();
buf.append("<").append(elementName).append(" xmlns=\"").append(namespace).append("\"/>");
return buf.toString();
}
};
privateDataGet.setType(IQ.Type.GET);
// Setup a listener for the reply to the set operation.
String packetID = privateDataGet.getPacketID();
PacketCollector collector = con.createPacketCollector(new PacketIDFilter(packetID));
// Send the private data.
con.sendPacket(privateDataGet);
// Wait up to five seconds for a response from the server.
IQ response = (IQ)collector.nextResult(5000);
if (response == null) {
throw new XMPPException("No response from the server.");
}
// If the server replied with an error, throw an exception.
else if (response.getType() == IQ.Type.ERROR) {
throw new XMPPException(response.getError());
}
return ((PrivateDataResult)response).getPrivateData();
}
public void setPrivateData(final PrivateData privateData) throws XMPPException {
// Create an IQ packet to set the private data.
IQ privateDataSet = new IQ() {
public String getChildElementXML() {
return privateData.toXML();
}
};
privateDataSet.setType(IQ.Type.SET);
// Setup a listener for the reply to the set operation.
String packetID = privateDataSet.getPacketID();
PacketCollector collector = con.createPacketCollector(new PacketIDFilter(packetID));
// Send the private data.
con.sendPacket(privateDataSet);
// Wait up to five seconds for a response from the server.
IQ response = (IQ)collector.nextResult(5000);
if (response == null) {
throw new XMPPException("No response from the server.");
}
// If the server replied with an error, throw an exception.
else if (response.getType() == IQ.Type.ERROR) {
throw new XMPPException(response.getError());
}
}
/**
* Returns a String key for a given element name and namespace.
*
* @param elementName the element name.
* @param namespace the namespace.
* @return a unique key for the element name and namespace pair.
*/
private static String getProviderKey(String elementName, String namespace) {
StringBuffer buf = new StringBuffer();
buf.append("<").append(elementName).append("/><").append(namespace).append("/>");
return buf.toString();
}
/**
* An IQ provider to parse IQ results containing private data.
*/
public static class PrivateDataIQProvider implements IQProvider {
public IQ parseIQ(XmlPullParser parser) throws Exception {
PrivateData privateData = null;;
boolean done = false;
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
String elementName = parser.getName();
String namespace = parser.getNamespace();
// See if any objects are registered to handle this private data type.
Object provider = getPrivateDataProvider(elementName, namespace);
// If there is a registered provider, use it.
if (provider != null) {
if (provider instanceof PrivateDataProvider) {
privateData = ((PrivateDataProvider)provider).parsePrivateData(parser);
}
// Otherwise it's a JavaBean, so use introspection.
else {
privateData = parseWithIntrospection(elementName, (Class)provider,
parser);
}
}
// Otherwise, use a DefaultPrivateData instance to store the private data.
else {
DefaultPrivateData data = new DefaultPrivateData(elementName, namespace);
boolean finished = false;
while (!finished) {
int event = parser.next();
if (event == XmlPullParser.START_TAG) {
String name = parser.getName();
// If an empty element, set the value with the empty string.
if (parser.isEmptyElementTag()) {
data.setValue(name,"");
}
// Otherwise, get the the element text.
else {
event = parser.next();
if (event == XmlPullParser.TEXT) {
String value = parser.getText();
data.setValue(name, value);
}
}
}
else if (event == XmlPullParser.END_TAG) {
if (parser.getName().equals(elementName)) {
finished = true;
}
}
}
privateData = data;
}
}
else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals("</query>")) {
done = true;
}
}
}
return new PrivateDataResult(privateData);
}
}
private static PrivateData parseWithIntrospection(String elementName,
Class objectClass, XmlPullParser parser) throws Exception
{
boolean done = false;
PrivateData object = (PrivateData)objectClass.newInstance();
while (!done) {
int eventType = parser.next();
if (eventType == XmlPullParser.START_TAG) {
String name = parser.getName();
String stringValue = parser.nextText();
PropertyDescriptor descriptor = new PropertyDescriptor(name, objectClass);
// Load the class type of the property.
Class propertyType = descriptor.getPropertyType();
// Get the value of the property by converting it from a
// String to the correct object type.
Object value = decode(propertyType, stringValue);
// Set the value of the bean.
descriptor.getWriteMethod().invoke(object, new Object[] { value });
}
else if (eventType == XmlPullParser.END_TAG) {
if (parser.getName().equals(elementName)) {
done = true;
}
}
}
return object;
}
/**
* Decodes a String into an object of the specified type. If the object
* type is not supported, null will be returned.
*
* @param type the type of the property.
* @param value the encode String value to decode.
* @return the String value decoded into the specified type.
*/
private static Object decode(Class type, String value) throws Exception {
if (type.getName().equals("java.lang.String")) {
return value;
}
if (type.getName().equals("boolean")) {
return Boolean.valueOf(value);
}
if (type.getName().equals("int")) {
return Integer.valueOf(value);
}
if (type.getName().equals("long")) {
return Long.valueOf(value);
}
if (type.getName().equals("float")) {
return Float.valueOf(value);
}
if (type.getName().equals("double")) {
return Double.valueOf(value);
}
if (type.getName().equals("java.lang.Class")) {
return Class.forName(value);
}
return null;
}
/**
* An IQ packet to hold PrivateData GET results.
*/
private static class PrivateDataResult extends IQ {
private PrivateData privateData;
PrivateDataResult(PrivateData privateData) {
this.privateData = privateData;
}
public PrivateData getPrivateData() {
return privateData;
}
public String getChildElementXML() {
return privateData.toXML();
}
}
}

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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright (C) 2002-2003 Jive Software. All rights reserved.
* ====================================================================
* The Jive Software License (based on Apache Software License, Version 1.1)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* Jive Software (http://www.jivesoftware.com)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Smack" and "Jive Software" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact webmaster@jivesoftware.com.
*
* 5. Products derived from this software may not be called "Smack",
* nor may "Smack" appear in their name, without prior written
* permission of Jive Software.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*/
package org.jivesoftware.smackx.packet;
import java.util.Map;
import java.util.Iterator;
import java.util.Collections;
import java.util.HashMap;
/**
* Default implementation of the PrivateData interface. Unless a PrivateDataProvider
* is registered with the PrivateDataManager class, instances of this class will be
* returned when getting private data.<p>
*
* This class provides a very simple representation of an XML sub-document. Each element
* is a key in a Map with its CDATA being the value. For example, given the following
* XML sub-document:
*
* <pre>
* &lt;foo xmlns="http://bar.com"&gt;
* &lt;color&gt;blue&lt;/color&gt;
* &lt;food&gt;pizza&lt;/food&gt;
* &lt;/foo&gt;</pre>
*
* In this case, getValue("color") would return "blue", and getValue("food") would
* return "pizza". This parsing mechanism mechanism is very simplistic and will not work
* as desired in all cases (for example, if some of the elements have attributes. In those
* cases, a custom PrivateDataProvider should be used.
*
* @author Matt Tucker
*/
public class DefaultPrivateData implements PrivateData {
private String elementName;
private String namespace;
private Map map;
/**
* Creates a new generic private data object.
*
* @param elementName the name of the element of the XML sub-document.
* @param namespace the namespace of the element.
*/
public DefaultPrivateData(String elementName, String namespace) {
this.elementName = elementName;
this.namespace = namespace;
}
/**
* Returns the XML element name of the private data sub-packet root element.
*
* @return the XML element name of the packet extension.
*/
public String getElementName() {
return elementName;
}
/**
* Returns the XML namespace of the private data sub-packet root element.
*
* @return the XML namespace of the packet extension.
*/
public String getNamespace() {
return namespace;
}
public String toXML() {
StringBuffer buf = new StringBuffer();
buf.append("<").append(elementName).append(" xmlns=\"").append(namespace).append("\">");
for (Iterator i=getNames(); i.hasNext(); ) {
String name = (String)i.next();
String value = getValue(name);
buf.append("<").append(name).append(">");
buf.append(value);
buf.append("</").append(name).append(">");
}
buf.append("</").append(elementName).append(">");
return buf.toString();
}
/**
* Returns an Iterator for the names that can be used to get
* values of the private data.
*
* @return an Iterator for the names.
*/
public synchronized Iterator getNames() {
if (map == null) {
return Collections.EMPTY_LIST.iterator();
}
return Collections.unmodifiableMap(new HashMap(map)).keySet().iterator();
}
/**
* Returns a value given a name.
*
* @param name the name.
* @return the value.
*/
public synchronized String getValue(String name) {
if (map == null) {
return null;
}
return (String)map.get(name);
}
/**
* Sets a value given the name.
*
* @param name the name.
* @param value the value.
*/
public synchronized void setValue(String name, String value) {
if (map == null) {
map = new HashMap();
}
map.put(name, value);
}
}

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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright (C) 2002-2003 Jive Software. All rights reserved.
* ====================================================================
* The Jive Software License (based on Apache Software License, Version 1.1)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* Jive Software (http://www.jivesoftware.com)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Smack" and "Jive Software" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact webmaster@jivesoftware.com.
*
* 5. Products derived from this software may not be called "Smack",
* nor may "Smack" appear in their name, without prior written
* permission of Jive Software.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*/
package org.jivesoftware.smackx.packet;
/**
* Interface to represent private data. Each private data chunk is an XML subdocument
* with a root element name and namespace.
*
* @see org.jivesoftware.smackx.PrivateDataManager
* @author Matt Tucker
*/
public interface PrivateData {
/**
* Returns the root element name.
*
* @return the element name.
*/
public String getElementName();
/**
* Returns the root element XML namespace.
*
* @return the namespace.
*/
public String getNamespace();
/**
* Returns the XML reppresentation of the PrivateData.
*
* @return the private data as XML.
*/
public String toXML();
}

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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright (C) 2002-2003 Jive Software. All rights reserved.
* ====================================================================
* The Jive Software License (based on Apache Software License, Version 1.1)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by
* Jive Software (http://www.jivesoftware.com)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Smack" and "Jive Software" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please
* contact webmaster@jivesoftware.com.
*
* 5. Products derived from this software may not be called "Smack",
* nor may "Smack" appear in their name, without prior written
* permission of Jive Software.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*/
package org.jivesoftware.smackx.provider;
import org.xmlpull.v1.XmlPullParser;
import org.jivesoftware.smackx.packet.PrivateData;
/**
*
* @author Matt Tucker
*/
public interface PrivateDataProvider {
/**
* Parse the private data sub-document and create a PrivateData instance. At the
* beginning of the method call, the xml parser will be positioned at the opening
* tag of the private data child element. At the end of the method call, the parser
* <b>must</b> be positioned on the closing tag of the child element.
*
* @param parser an XML parser.
* @return a new PrivateData instance.
* @throws Exception if an error occurs parsing the XML.
*/
public PrivateData parsePrivateData(XmlPullParser parser) throws Exception;
}