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Code Issues Releases Wiki Activity

Implemented listeners.

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git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@1806 b35dd754-fafc-0310-a699-88a17e54d16e
This commit is contained in:
Matt Tucker 2003-01-17 18:26:14 +00:00 committed by mtucker
parent 0614057cf2
commit 1c40c3c348
1 changed files with 90 additions and 21 deletions
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111
source/org/jivesoftware/smack/PacketReader.java
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@ -82,7 +82,7 @@ class PacketReader {
private XmlPullParser parser;
private boolean done = false;
protected List collectors = new ArrayList();
private List listeners = Collections.synchronizedList(new ArrayList());
private List listeners = new ArrayList();
private String connectionID = null;
private Object connectionIDLock = new Object();
@ -119,16 +119,44 @@ class PacketReader {
}
}
/**
* Creates a new packet collector for this reader. A packet filter determines
* which packets will be accumulated by the collector.
*
* @param packetFilter the packet filter to use.
* @return a new packet collector.
*/
public PacketCollector createPacketCollector(PacketFilter packetFilter) {
return new PacketCollector(this, packetFilter);
PacketCollector packetCollector = new PacketCollector(this, packetFilter);
return packetCollector;
}
/**
* Registers a packet listener with this reader. A packet filter determines
* which packets will be delivered to the listener.
*
* @param packetListener the packet listener to notify of new packets.
* @param packetFilter the packet filter to use.
*/
public void addPacketListener(PacketListener packetListener, PacketFilter packetFilter) {
// TODO: implement
ListenerWrapper wrapper = new ListenerWrapper(this, packetListener,
packetFilter);
synchronized (listeners) {
listeners.add(wrapper);
}
}
/**
* Removes a packet listener from this reader.
*
* @param packetListener the packet listener to remove.
*/
public void removePacketListener(PacketListener packetListener) {
// TODO: implement
synchronized (listeners) {
int index = listeners.indexOf(packetListener);
listeners.set(index, null);
}
}
/**
@ -170,11 +198,17 @@ class PacketReader {
*/
private void processListeners() {
boolean processedPacket = false;
while (true) {
synchronized(listeners) {
int size = listeners.size();
for (int i=0; i<size; i++) {
while (!done) {
synchronized (listeners) {
// TODO: need to loop through lists and remove null elements. Should loop through
// TODO: list backwards so that index values stay correct.
}
processedPacket = false;
int size = listeners.size();
for (int i=0; i<size; i++) {
ListenerWrapper wrapper = (ListenerWrapper)listeners.get(i);
if (wrapper != null) {
processedPacket = processedPacket || wrapper.notifyListener();
}
}
if (!processedPacket) {
@ -240,7 +274,8 @@ class PacketReader {
/**
* Processes a packet after it's been fully parsed by looping through the installed
* packet collectors and letting them examine the packet to see if they are a match.
* packet collectors and listeners and letting them examine the packet to see if
* they are a match with the filter.
*
* @param packet the packet to process.
*/
@ -248,16 +283,16 @@ class PacketReader {
if (packet == null) {
return;
}
// TODO: loop through collectors and remove null values.
// Loop through all collectors and notify the appropriate ones.
synchronized (collectors) {
// Loop through packet collectors backwards.
int size = collectors.size();
for (int i=0; i<size; i++) {
PacketCollector collector = (PacketCollector)collectors.get(i);
if (collector != null) {
// Have the collector process the packet to see if it wants to handle it.
collector.processPacket(packet);
}
int size = collectors.size();
for (int i=0; i<size; i++) {
PacketCollector collector = (PacketCollector)collectors.get(i);
if (collector != null) {
// Have the collector process the packet to see if it wants to handle it.
collector.processPacket(packet);
}
}
}
@ -555,16 +590,50 @@ class PacketReader {
/**
* A wrapper class to associate a packet collector with a listener.
*/
private static class PacketListenerWrapper {
private static class ListenerWrapper {
private PacketListener packetListener;
private PacketCollector packetCollector;
public PacketListenerWrapper(PacketReader packetReader, PacketListener packetListener,
public ListenerWrapper(PacketReader packetReader, PacketListener packetListener,
PacketFilter packetFilter)
{
this.packetListener = packetListener;
this.packetCollector = new PacketCollector(packetReader, packetFilter);
}
public boolean equals(Object object) {
if (object == null) {
return false;
}
if (object instanceof ListenerWrapper) {
return ((ListenerWrapper)object).packetListener.equals(this.packetListener);
}
else if (object instanceof PacketListener) {
return object.equals(this.packetListener);
}
return false;
}
public void processPacket(Packet packet) {
packetCollector.processPacket(packet);
}
public boolean notifyListener() {
Packet packet = packetCollector.pollResult();
if (packet != null) {
packetListener.processPacket(packet);
return true;
}
else {
return false;
}
}
public void cancel() {
packetCollector.cancel();
packetCollector = null;
packetListener = null;
}
}
}