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Code Issues Releases Wiki Activity

Use WeakHashMap in BookmarkManager and PrivateDataManager

Browse source 
Also remove the "other user" constructor fo PrivateDataManager, as
this feature is not specified by XEP-49.

Fixes SMACK-554
This commit is contained in:
Florian Schmaus 2014-04-04 11:55:06 +02:00
parent ef43ba6322
commit 0c29fdb769
2 changed files with 29 additions and 61 deletions
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23
extensions/src/main/java/org/jivesoftware/smackx/bookmarks/BookmarkManager.java
View file

@ -17,6 +17,13 @@
package org.jivesoftware.smackx.bookmarks;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import org.jivesoftware.smack.SmackException;
import org.jivesoftware.smack.SmackException.NoResponseException;
import org.jivesoftware.smack.SmackException.NotConnectedException;
@ -25,7 +32,6 @@ import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack.XMPPException.XMPPErrorException;
import org.jivesoftware.smackx.iqprivate.PrivateDataManager;
import java.util.*;
/**
* Provides methods to manage bookmarks in accordance with JEP-0048. Methods for managing URLs and
@ -38,7 +44,8 @@ import java.util.*;
* @author Alexander Wenckus
*/
public class BookmarkManager {
private static final Map<XMPPConnection, BookmarkManager> bookmarkManagerMap = new HashMap<XMPPConnection, BookmarkManager>();
private static final Map<XMPPConnection, BookmarkManager> bookmarkManagerMap = new WeakHashMap<XMPPConnection, BookmarkManager>();
static {
PrivateDataManager.addPrivateDataProvider("storage", "storage:bookmarks",
new Bookmarks.Provider());
@ -60,7 +67,6 @@ public class BookmarkManager {
BookmarkManager manager = (BookmarkManager) bookmarkManagerMap.get(connection);
if (manager == null) {
manager = new BookmarkManager(connection);
bookmarkManagerMap.put(connection, manager);
}
return manager;
}
@ -74,17 +80,10 @@ public class BookmarkManager {
* storage:bookmarks namespace.
*
* @param connection the connection for persisting and retrieving bookmarks.
* @throws SmackException thrown has not been authenticated.
* @throws IllegalArgumentException when the connection is null.
*/
private BookmarkManager(XMPPConnection connection) throws XMPPException, SmackException {
if (connection == null) {
throw new IllegalArgumentException("connection must not be null.");
}
if (!connection.isAuthenticated()) {
throw new SmackException("connection not authenticated.");
}
this.privateDataManager = new PrivateDataManager(connection);
privateDataManager = PrivateDataManager.getInstanceFor(connection);
bookmarkManagerMap.put(connection, this);
}
/**

67
extensions/src/main/java/org/jivesoftware/smackx/iqprivate/PrivateDataManager.java
View file

@ -17,6 +17,7 @@
package org.jivesoftware.smackx.iqprivate;
import org.jivesoftware.smack.Manager;
import org.jivesoftware.smack.SmackException.NoResponseException;
import org.jivesoftware.smack.SmackException.NotConnectedException;
import org.jivesoftware.smack.XMPPConnection;
@ -30,6 +31,7 @@ import org.xmlpull.v1.XmlPullParser;
import java.util.Hashtable;
import java.util.Map;
import java.util.WeakHashMap;
/**
* Manages private data, which is a mechanism to allow users to store arbitrary XML
@ -53,7 +55,16 @@ import java.util.Map;
*
* @author Matt Tucker
*/
public class PrivateDataManager {
public class PrivateDataManager extends Manager {
private static final Map<XMPPConnection, PrivateDataManager> instances = new WeakHashMap<XMPPConnection, PrivateDataManager>();
public static synchronized PrivateDataManager getInstanceFor(XMPPConnection connection) {
PrivateDataManager privateDataManager = instances.get(connection);
if (connection == null) {
privateDataManager = new PrivateDataManager(connection);
}
return privateDataManager;
}
/**
* Map of provider instances.
@ -113,49 +124,15 @@ public class PrivateDataManager {
privateDataProviders.remove(key);
}
private XMPPConnection connection;
/**
* The user to get and set private data for. In most cases, this value should
* be <tt>null</tt>, as the typical use of private data is to get and set
* your own private data and not others.
*/
private String user;
/**
* Creates a new private data manager. The connection must have
* undergone a successful login before being used to construct an instance of
* this class.
* Creates a new private data manager.
*
* @param connection an XMPP connection which must have already undergone a
* successful login.
*/
public PrivateDataManager(XMPPConnection connection) {
if (!connection.isAuthenticated()) {
throw new IllegalStateException("Must be logged in to XMPP server.");
}
this.connection = connection;
}
/**
* Creates a new private data manager for a specific user (special case). Most
* servers only support getting and setting private data for the user that
* authenticated via the connection. However, some servers support the ability
* to get and set private data for other users (for example, if you are the
* administrator). The connection must have undergone a successful login before
* being used to construct an instance of this class.
*
* @param connection an XMPP connection which must have already undergone a
* successful login.
* @param user the XMPP address of the user to get and set private data for.
*/
public PrivateDataManager(XMPPConnection connection, String user) {
if (!connection.isAuthenticated()) {
throw new IllegalStateException("Must be logged in to XMPP server.");
}
this.connection = connection;
this.user = user;
private PrivateDataManager(XMPPConnection connection) {
super(connection);
instances.put(connection, this);
}
/**
@ -186,12 +163,8 @@ public class PrivateDataManager {
}
};
privateDataGet.setType(IQ.Type.GET);
// Address the packet to the other account if user has been set.
if (user != null) {
privateDataGet.setTo(user);
}
PrivateDataResult response = (PrivateDataResult) connection.createPacketCollectorAndSend(
PrivateDataResult response = (PrivateDataResult) connection().createPacketCollectorAndSend(
privateDataGet).nextResultOrThrow();
return response.getPrivateData();
}
@ -218,12 +191,8 @@ public class PrivateDataManager {
}
};
privateDataSet.setType(IQ.Type.SET);
// Address the packet to the other account if user has been set.
if (user != null) {
privateDataSet.setTo(user);
}
connection.createPacketCollectorAndSend(privateDataSet).nextResultOrThrow();
connection().createPacketCollectorAndSend(privateDataSet).nextResultOrThrow();
}
/**