OfflineMessageRequest.java
/**
*
* Copyright 2003-2007 Jive Software.
*
* 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.offline.packet;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.jivesoftware.smack.packet.IQ;
import org.jivesoftware.smack.packet.IqData;
import org.jivesoftware.smack.packet.XmlEnvironment;
import org.jivesoftware.smack.provider.IqProvider;
import org.jivesoftware.smack.xml.XmlPullParser;
import org.jivesoftware.smack.xml.XmlPullParserException;
import org.jivesoftware.smackx.offline.OfflineMessageManager;
/**
* Represents a request to get some or all the offline messages of a user. This class can also
* be used for deleting some or all the offline messages of a user.
*
* @author Gaston Dombiak
*/
public class OfflineMessageRequest extends IQ {
public static final String ELEMENT = "offline";
public static final String NAMESPACE = OfflineMessageManager.NAMESPACE;
private final List<Item> items = new ArrayList<>();
private boolean purge = false;
private boolean fetch = false;
public OfflineMessageRequest() {
super(ELEMENT, NAMESPACE);
}
/**
* Returns a List of item children that holds information about offline messages to
* view or delete.
*
* @return a List of item children that holds information about offline messages to
* view or delete.
*/
public List<Item> getItems() {
synchronized (items) {
return Collections.unmodifiableList(new ArrayList<>(items));
}
}
/**
* Adds an item child that holds information about offline messages to view or delete.
*
* @param item the item child that holds information about offline messages to view or delete.
*/
public void addItem(Item item) {
synchronized (items) {
items.add(item);
}
}
/**
* Returns true if all the offline messages of the user should be deleted.
*
* @return true if all the offline messages of the user should be deleted.
*/
public boolean isPurge() {
return purge;
}
/**
* Sets if all the offline messages of the user should be deleted.
*
* @param purge true if all the offline messages of the user should be deleted.
*/
public void setPurge(boolean purge) {
this.purge = purge;
}
/**
* Returns true if all the offline messages of the user should be retrieved.
*
* @return true if all the offline messages of the user should be retrieved.
*/
public boolean isFetch() {
return fetch;
}
/**
* Sets if all the offline messages of the user should be retrieved.
*
* @param fetch true if all the offline messages of the user should be retrieved.
*/
public void setFetch(boolean fetch) {
this.fetch = fetch;
}
@Override
protected IQChildElementXmlStringBuilder getIQChildElementBuilder(IQChildElementXmlStringBuilder buf) {
buf.rightAngleBracket();
synchronized (items) {
for (Item item : items) {
buf.append(item.toXML());
}
}
if (purge) {
buf.append("<purge/>");
}
if (fetch) {
buf.append("<fetch/>");
}
return buf;
}
/**
* Item child that holds information about offline messages to view or delete.
*
* @author Gaston Dombiak
*/
public static class Item {
private String action;
private String jid;
private String node;
/**
* Creates a new item child.
*
* @param node the actor's affiliation to the room
*/
public Item(String node) {
this.node = node;
}
public String getNode() {
return node;
}
/**
* Returns "view" or "remove" that indicate if the server should return the specified
* offline message or delete it.
*
* @return "view" or "remove" that indicate if the server should return the specified
* offline message or delete it.
*/
public String getAction() {
return action;
}
/**
* Sets if the server should return the specified offline message or delete it. Possible
* values are "view" or "remove".
*
* @param action if the server should return the specified offline message or delete it.
*/
public void setAction(String action) {
this.action = action;
}
public String getJid() {
return jid;
}
public void setJid(String jid) {
this.jid = jid;
}
public String toXML() {
StringBuilder buf = new StringBuilder();
buf.append("<item");
if (getAction() != null) {
buf.append(" action=\"").append(getAction()).append('"');
}
if (getJid() != null) {
buf.append(" jid=\"").append(getJid()).append('"');
}
if (getNode() != null) {
buf.append(" node=\"").append(getNode()).append('"');
}
buf.append("/>");
return buf.toString();
}
}
public static class Provider extends IqProvider<OfflineMessageRequest> {
@Override
public OfflineMessageRequest parse(XmlPullParser parser,
int initialDepth, IqData iqData, XmlEnvironment xmlEnvironment) throws XmlPullParserException,
IOException {
OfflineMessageRequest request = new OfflineMessageRequest();
boolean done = false;
while (!done) {
XmlPullParser.Event eventType = parser.next();
if (eventType == XmlPullParser.Event.START_ELEMENT) {
if (parser.getName().equals("item")) {
request.addItem(parseItem(parser));
}
else if (parser.getName().equals("purge")) {
request.setPurge(true);
}
else if (parser.getName().equals("fetch")) {
request.setFetch(true);
}
} else if (eventType == XmlPullParser.Event.END_ELEMENT) {
if (parser.getName().equals("offline")) {
done = true;
}
}
}
return request;
}
private static Item parseItem(XmlPullParser parser)
throws XmlPullParserException, IOException {
boolean done = false;
Item item = new Item(parser.getAttributeValue("", "node"));
item.setAction(parser.getAttributeValue("", "action"));
item.setJid(parser.getAttributeValue("", "jid"));
while (!done) {
XmlPullParser.Event eventType = parser.next();
if (eventType == XmlPullParser.Event.END_ELEMENT) {
if (parser.getName().equals("item")) {
done = true;
}
}
}
return item;
}
}
}