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Code Issues Releases Wiki Activity

Fixed Exception in packet listener Workgroup

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Prevent java.util.ConcurrentModificationException by using a
CopyOnWriteArraySet.
This commit is contained in:
Gligor Selimovic 2015-01-13 14:18:42 +01:00 committed by Florian Schmaus
parent 6d7f3904d9
commit 79fe40bf97
1 changed files with 19 additions and 46 deletions
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47
smack-legacy/src/main/java/org/jivesoftware/smackx/workgroup/user/Workgroup.java
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@ -16,7 +16,7 @@
*/ */
package org.jivesoftware.smackx.workgroup.user; package org.jivesoftware.smackx.workgroup.user;
import java.util.ArrayList; import java.util.concurrent.CopyOnWriteArraySet;
import java.util.Iterator; import java.util.Iterator;
import java.util.List; import java.util.List;
import java.util.Map; import java.util.Map;
@ -76,8 +76,8 @@ public class Workgroup {
private String workgroupJID; private String workgroupJID;
private XMPPConnection connection; private XMPPConnection connection;
private boolean inQueue; private boolean inQueue;
private List<WorkgroupInvitationListener> invitationListeners; private CopyOnWriteArraySet<WorkgroupInvitationListener> invitationListeners;
private List<QueueListener> queueListeners; private CopyOnWriteArraySet<QueueListener> queueListeners;
private int queuePosition = -1; private int queuePosition = -1;
private int queueRemainingTime = -1; private int queueRemainingTime = -1;
@ -101,8 +101,8 @@ public class Workgroup {
this.workgroupJID = workgroupJID; this.workgroupJID = workgroupJID;
this.connection = connection; this.connection = connection;
inQueue = false; inQueue = false;
invitationListeners = new ArrayList<WorkgroupInvitationListener>(); invitationListeners = new CopyOnWriteArraySet<>();
queueListeners = new ArrayList<QueueListener>(); queueListeners = new CopyOnWriteArraySet<>();
// Register as a queue listener for internal usage by this instance. // Register as a queue listener for internal usage by this instance.
addQueueListener(new QueueListener() { addQueueListener(new QueueListener() {
@ -429,12 +429,8 @@ public class Workgroup {
* @param queueListener the queue listener. * @param queueListener the queue listener.
*/ */
public void addQueueListener(QueueListener queueListener) { public void addQueueListener(QueueListener queueListener) {
synchronized (queueListeners) {
if (!queueListeners.contains(queueListener)) {
queueListeners.add(queueListener); queueListeners.add(queueListener);
} }
}
}
/** /**
* Removes a queue listener. * Removes a queue listener.
@ -442,10 +438,8 @@ public class Workgroup {
* @param queueListener the queue listener. * @param queueListener the queue listener.
*/ */
public void removeQueueListener(QueueListener queueListener) { public void removeQueueListener(QueueListener queueListener) {
synchronized (queueListeners) {
queueListeners.remove(queueListener); queueListeners.remove(queueListener);
} }
}
/** /**
* Adds an invitation listener that will be notified of groupchat invitations * Adds an invitation listener that will be notified of groupchat invitations
@ -454,12 +448,8 @@ public class Workgroup {
* @param invitationListener the invitation listener. * @param invitationListener the invitation listener.
*/ */
public void addInvitationListener(WorkgroupInvitationListener invitationListener) { public void addInvitationListener(WorkgroupInvitationListener invitationListener) {
synchronized (invitationListeners) {
if (!invitationListeners.contains(invitationListener)) {
invitationListeners.add(invitationListener); invitationListeners.add(invitationListener);
} }
}
}
/** /**
* Removes an invitation listener. * Removes an invitation listener.
@ -467,55 +457,38 @@ public class Workgroup {
* @param invitationListener the invitation listener. * @param invitationListener the invitation listener.
*/ */
public void removeQueueListener(WorkgroupInvitationListener invitationListener) { public void removeQueueListener(WorkgroupInvitationListener invitationListener) {
synchronized (invitationListeners) {
invitationListeners.remove(invitationListener); invitationListeners.remove(invitationListener);
} }
}
private void fireInvitationEvent(WorkgroupInvitation invitation) { private void fireInvitationEvent(WorkgroupInvitation invitation) {
synchronized (invitationListeners) { for (WorkgroupInvitationListener listener : invitationListeners ){
for (Iterator<WorkgroupInvitationListener> i = invitationListeners.iterator(); i.hasNext();) {
WorkgroupInvitationListener listener = i.next();
listener.invitationReceived(invitation); listener.invitationReceived(invitation);
} }
} }
}
private void fireQueueJoinedEvent() { private void fireQueueJoinedEvent() {
synchronized (queueListeners) { for (QueueListener listener : queueListeners){
for (Iterator<QueueListener> i = queueListeners.iterator(); i.hasNext();) {
QueueListener listener = i.next();
listener.joinedQueue(); listener.joinedQueue();
} }
} }
}
private void fireQueueDepartedEvent() { private void fireQueueDepartedEvent() {
synchronized (queueListeners) { for (QueueListener listener : queueListeners) {
for (Iterator<QueueListener> i = queueListeners.iterator(); i.hasNext();) {
QueueListener listener = i.next();
listener.departedQueue(); listener.departedQueue();
} }
} }
}
private void fireQueuePositionEvent(int currentPosition) { private void fireQueuePositionEvent(int currentPosition) {
synchronized (queueListeners) { for (QueueListener listener : queueListeners) {
for (Iterator<QueueListener> i = queueListeners.iterator(); i.hasNext();) {
QueueListener listener = i.next();
listener.queuePositionUpdated(currentPosition); listener.queuePositionUpdated(currentPosition);
} }
} }
}
private void fireQueueTimeEvent(int secondsRemaining) { private void fireQueueTimeEvent(int secondsRemaining) {
synchronized (queueListeners) { for (QueueListener listener : queueListeners) {
for (Iterator<QueueListener> i = queueListeners.iterator(); i.hasNext();) {
QueueListener listener = i.next();
listener.queueWaitTimeUpdated(secondsRemaining); listener.queueWaitTimeUpdated(secondsRemaining);
} }
} }
}
// PacketListener Implementation. // PacketListener Implementation.