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Smack/source/org/jivesoftware/smackx/packet/DataForm.java

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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.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import org.jivesoftware.smack.packet.PacketExtension;
import org.jivesoftware.smackx.FormField;
/**
* Represents a form that could be use for gathering data as well as for reporting data
* returned from a search.
*
* @author Gaston Dombiak
*/
public class DataForm implements PacketExtension {
private String type;
private String title;
private List instructions = new ArrayList();
private ReportedData reportedData;
private List items = new ArrayList();
private List fields = new ArrayList();
public DataForm(String type) {
this.type = type;
}
/**
* Returns the meaning of the data within the context. The data could be part of a form
* to fill out, a form submission or data results.<p>
*
* Possible form types are:
* <ul>
* <li>form -> This packet contains a form to fill out. Display it to the user (if your
* program can).</li>
* <li>submit -> The form is filled out, and this is the data that is being returned from
* the form.</li>
* <li>cancel -> The form was cancelled. Tell the asker that piece of information.</li>
* <li>result -> Data results being returned from a search, or some other query.</li>
* </ul>
*
* @return the form's type.
*/
public String getType() {
return type;
}
/**
* Returns the description of the data. It is similar to the title on a web page or an X
* window. You can put a <title/> on either a form to fill out, or a set of data results.
*
* @return description of the data.
*/
public String getTitle() {
return title;
}
/**
* Returns an Iterator for the list of instructions that explain how to fill out the form and
* what the form is about. The dataform could include multiple instructions since each
* instruction could not contain newlines characters. Join the instructions together in order
* to show them to the user.
*
* @return an Iterator for the list of instructions that explain how to fill out the form.
*/
public Iterator getInstructions() {
synchronized (instructions) {
return Collections.unmodifiableList(new ArrayList(instructions)).iterator();
}
}
/**
* Returns the fields that will be returned from a search.
*
* @return fields that will be returned from a search.
*/
public ReportedData getReportedData() {
return reportedData;
}
/**
* Returns an Iterator for the items returned from a search.
*
* @return an Iterator for the items returned from a search.
*/
public Iterator getItems() {
synchronized (items) {
return Collections.unmodifiableList(new ArrayList(items)).iterator();
}
}
/**
* Returns an Iterator for the fields that are part of the form.
*
* @return an Iterator for the fields that are part of the form.
*/
public Iterator getFields() {
synchronized (fields) {
return Collections.unmodifiableList(new ArrayList(fields)).iterator();
}
}
public String getElementName() {
return "x";
}
public String getNamespace() {
return "jabber:x:data";
}
/**
* Sets the description of the data. It is similar to the title on a web page or an X window.
* You can put a <title/> on either a form to fill out, or a set of data results.
*
* @param title description of the data.
*/
public void setTitle(String title) {
this.title = title;
}
/**
* Sets the list of instructions that explain how to fill out the form and what the form is
* about. The dataform could include multiple instructions since each instruction could not
* contain newlines characters.
*
* @param instructions list of instructions that explain how to fill out the form.
*/
public void setInstructions(List instructions) {
this.instructions = instructions;
}
/**
* Sets the fields that will be returned from a search.
*
* @param reportedData the fields that will be returned from a search.
*/
public void setReportedData(ReportedData reportedData) {
this.reportedData = reportedData;
}
/**
* Adds a new field as part of the form.
*
* @param field the field to add to the form.
*/
public void addField(FormField field) {
synchronized (fields) {
fields.add(field);
}
}
/**
* Adds a new instruction to the list of instructions that explain how to fill out the form
* and what the form is about. The dataform could include multiple instructions since each
* instruction could not contain newlines characters.
*
* @param instruction the new instruction that explain how to fill out the form.
*/
public void addInstruction(String instruction) {
synchronized (instructions) {
instructions.add(instruction);
}
}
/**
* Adds a new item returned from a search.
*
* @param item the item returned from a search.
*/
public void addItem(Item item) {
synchronized (items) {
items.add(item);
}
}
public String toXML() {
StringBuffer buf = new StringBuffer();
buf.append("<").append(getElementName()).append(" xmlns=\"").append(getNamespace()).append(
"\" type=\"" + getType() +"\">");
if (getTitle() != null) {
buf.append("<title>").append(getTitle()).append("</title>");
}
for (Iterator it=getInstructions(); it.hasNext();) {
buf.append("<instructions>").append(it.next()).append("</instructions>");
}
// Append the list of fields returned from a search
if (getReportedData() != null) {
buf.append(getReportedData().toXML());
}
// Loop through all the items returned from a search and append them to the string buffer
for (Iterator i = getItems(); i.hasNext();) {
Item item = (Item) i.next();
buf.append(item.toXML());
}
// Loop through all the form fields and append them to the string buffer
for (Iterator i = getFields(); i.hasNext();) {
FormField field = (FormField) i.next();
buf.append(field.toXML());
}
buf.append("</").append(getElementName()).append(">");
return buf.toString();
}
/**
*
* Represents the fields that will be returned from a search. This information is useful when
* you try to use the jabber:iq:search namespace to return dynamic form information.
*
* @author Gaston Dombiak
*/
public static class ReportedData {
private List fields = new ArrayList();
public ReportedData(List fields) {
this.fields = fields;
}
/**
* Returns the fields returned from a search.
*
* @return the fields returned from a search.
*/
public Iterator getFields() {
return Collections.unmodifiableList(new ArrayList(fields)).iterator();
}
public String toXML() {
StringBuffer buf = new StringBuffer();
buf.append("<reported>");
// Loop through all the form items and append them to the string buffer
for (Iterator i = getFields(); i.hasNext();) {
FormField field = (FormField) i.next();
buf.append(field.toXML());
}
buf.append("</reported>");
return buf.toString();
}
}
/**
*
* Represents items of reported data.
*
* @author Gaston Dombiak
*/
public static class Item {
private List fields = new ArrayList();
public Item(List fields) {
this.fields = fields;
}
/**
* Returns the fields that define the data that goes with the item.
*
* @return the fields that define the data that goes with the item.
*/
public Iterator getFields() {
return Collections.unmodifiableList(new ArrayList(fields)).iterator();
}
public String toXML() {
StringBuffer buf = new StringBuffer();
buf.append("<item>");
// Loop through all the form items and append them to the string buffer
for (Iterator i = getFields(); i.hasNext();) {
FormField field = (FormField) i.next();
buf.append(field.toXML());
}
buf.append("</item>");
return buf.toString();
}
}
}