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156
source/org/jivesoftware/smack/packet/DefaultPacketExtension.java
Normal file
156
source/org/jivesoftware/smack/packet/DefaultPacketExtension.java
Normal file
|
@ -0,0 +1,156 @@
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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.
|
||||
* ====================================================================
|
||||
*/
|
||||
|
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package org.jivesoftware.smack.packet;
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import java.util.*;
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|
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/**
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* Default implementation of the PacketExtension interface. Unless a PacketExtensionProvider
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* is registered with {@link org.jivesoftware.smack.provider.ProviderManager ProviderManager},
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* instances of this class will be returned when getting packet extensions.<p>
|
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*
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* This class provides a very simple representation of an XML sub-document. Each element
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* is a key in a Map with its CDATA being the value. For example, given the following
|
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* XML sub-document:
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*
|
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* <pre>
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* <foo xmlns="http://bar.com">
|
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* <color>blue</color>
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* <food>pizza</food>
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* </foo></pre>
|
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*
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* In this case, getValue("color") would return "blue", and getValue("food") would
|
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* return "pizza". This parsing mechanism mechanism is very simplistic and will not work
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* as desired in all cases (for example, if some of the elements have attributes. In those
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* cases, a custom PacketExtensionProvider should be used.
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*
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* @author Matt Tucker
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*/
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public class DefaultPacketExtension implements PacketExtension {
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private String elementName;
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private String namespace;
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private Map map;
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/**
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* Creates a new generic packet extension.
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*
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* @param elementName the name of the element of the XML sub-document.
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* @param namespace the namespace of the element.
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*/
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public DefaultPacketExtension(String elementName, String namespace) {
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this.elementName = elementName;
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this.namespace = namespace;
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}
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/**
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* Returns the XML element name of the extension sub-packet root element.
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*
|
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* @return the XML element name of the packet extension.
|
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*/
|
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public String getElementName() {
|
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return elementName;
|
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}
|
||||
|
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/**
|
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* Returns the XML namespace of the extension sub-packet root element.
|
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*
|
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* @return the XML namespace of the packet extension.
|
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*/
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public String getNamespace() {
|
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return namespace;
|
||||
}
|
||||
|
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public String toXML() {
|
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return null;
|
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}
|
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|
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/**
|
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* Returns an Iterator for the names that can be used to get
|
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* values of the packet extension.
|
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*
|
||||
* @return an Iterator for the names.
|
||||
*/
|
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public synchronized Iterator getNames() {
|
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if (map == null) {
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Collections.EMPTY_LIST.iterator();
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}
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return Collections.unmodifiableMap(new HashMap(map)).keySet().iterator();
|
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}
|
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|
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/**
|
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* Returns a packet extension value given a name.
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*
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* @param name the name.
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* @return the value.
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*/
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public synchronized String getValue(String name) {
|
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if (map == null) {
|
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return null;
|
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}
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return (String)map.get(name);
|
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}
|
||||
|
||||
/**
|
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* Sets a packet extension value using the given name.
|
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*
|
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* @param name the name.
|
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* @param value the value.
|
||||
*/
|
||||
public synchronized void setValue(String name, String value) {
|
||||
if (map == null) {
|
||||
map = new HashMap();
|
||||
}
|
||||
map.put(name, value);
|
||||
}
|
||||
}
|
14
source/org/jivesoftware/smack/packet/PacketExtension.java
Normal file
14
source/org/jivesoftware/smack/packet/PacketExtension.java
Normal file
|
@ -0,0 +1,14 @@
|
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package org.jivesoftware.smack.packet;
|
||||
|
||||
/**
|
||||
*
|
||||
* @author Matt Tucker
|
||||
*/
|
||||
public interface PacketExtension {
|
||||
|
||||
public String getElementName();
|
||||
|
||||
public String getNamespace();
|
||||
|
||||
public String toXML();
|
||||
}
|
79
source/org/jivesoftware/smack/provider/IQProvider.java
Normal file
79
source/org/jivesoftware/smack/provider/IQProvider.java
Normal file
|
@ -0,0 +1,79 @@
|
|||
/**
|
||||
* $RCSfile$
|
||||
* $Revision$
|
||||
* $Date$
|
||||
*
|
||||
* 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.smack.provider;
|
||||
|
||||
import org.jivesoftware.smack.packet.IQ;
|
||||
import org.xmlpull.v1.XmlPullParser;
|
||||
|
||||
/**
|
||||
* An interface for parsing custom IQ packets. Each IQProvider must be registered with
|
||||
* the ProviderManager class for it to be used. Every implementation of this
|
||||
* interface <b>must</b> have a public, no-argument constructor.
|
||||
*
|
||||
* @author Matt Tucker
|
||||
*/
|
||||
public interface IQProvider {
|
||||
|
||||
/**
|
||||
* Parse the IQ sub-document and create an IQ instance. Each IQ must have a single
|
||||
* sub-element At
|
||||
* the beginning of the method call, the xml parser will be positioned directly
|
||||
* after the opening <query> tag of the IQ packet. At the end of the method call,
|
||||
* the parser <b>must</b> be positioned directly after the closing <query/> tag.
|
||||
*
|
||||
* @param parser an XML parser.
|
||||
* @return a new IQ instance.
|
||||
* @throws Exception if an error occurs parsing the XML.
|
||||
*/
|
||||
public IQ parseIQ(XmlPullParser parser) throws Exception;
|
||||
}
|
|
@ -0,0 +1,78 @@
|
|||
/**
|
||||
* $RCSfile$
|
||||
* $Revision$
|
||||
* $Date$
|
||||
*
|
||||
* 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.smack.provider;
|
||||
|
||||
import org.jivesoftware.smack.packet.PacketExtension;
|
||||
import org.xmlpull.v1.XmlPullParser;
|
||||
|
||||
/**
|
||||
* An interface for parsing custom packets extensions. Each PacketExtensionProvider must
|
||||
* be registered with the ProviderManager class for it to be used. Every implementation
|
||||
* of this interface <b>must</b> have a public, no-argument constructor.
|
||||
*
|
||||
* @author Matt Tucker
|
||||
*/
|
||||
public interface PacketExtensionProvider {
|
||||
|
||||
/**
|
||||
* Parse an extension sub-packet and create a PacketExtension instance. At
|
||||
* the beginning of the method call, the xml parser will be positioned on the
|
||||
* opening element of the packet extension. At the end of the method call, the
|
||||
* parser <b>must</b> be positioned on the closing element of the packet extension.
|
||||
*
|
||||
* @param parser an XML parser.
|
||||
* @return a new IQ instance.
|
||||
* @throws java.lang.Exception if an error occurs parsing the XML.
|
||||
*/
|
||||
public PacketExtension parseExtensions(XmlPullParser parser) throws Exception;
|
||||
}
|
279
source/org/jivesoftware/smack/provider/ProviderManager.java
Normal file
279
source/org/jivesoftware/smack/provider/ProviderManager.java
Normal file
|
@ -0,0 +1,279 @@
|
|||
/**
|
||||
* $RCSfile$
|
||||
* $Revision$
|
||||
* $Date$
|
||||
*
|
||||
* 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.smack.provider;
|
||||
|
||||
import org.jivesoftware.smack.packet.IQ;
|
||||
import org.jivesoftware.smack.packet.PacketExtension;
|
||||
import org.xmlpull.v1.*;
|
||||
|
||||
import java.util.*;
|
||||
import java.net.URL;
|
||||
|
||||
/**
|
||||
* Manages providers for parsing custom XML sub-documents of XMPP packets. Two types of
|
||||
* providers exist:<ul>
|
||||
* <li>IQProvider -- parses IQ requests into Java objects.
|
||||
* <li>PacketExtension -- parses XML sub-documents attached to packets into
|
||||
* PacketExtension instances.</ul>
|
||||
*
|
||||
* <b>IQProvider</b><p>
|
||||
*
|
||||
* By default, Smack only knows how to process IQ packets with query sub-packets that
|
||||
* are in a few namespaces:<ul>
|
||||
* <li>jabber:iq:auth
|
||||
* <li>jabber:iq:roster
|
||||
* <li>jabber:iq:register</ul>
|
||||
*
|
||||
* Because many more IQ types are part of XMPP and its extensions, a pluggable IQ parsing
|
||||
* mechanism is provided. IQ providers are registered by creating a smack.providers file
|
||||
* in the WEB-INF directory of your JAR file. The file is an XML document that contains
|
||||
* one or more iqProvider entries, as in the following example:
|
||||
*
|
||||
* <pre>
|
||||
* <?xml version="1.0"?>
|
||||
* <smackProviders>
|
||||
* <iqProvider>
|
||||
* <elementName>query</elementName>
|
||||
* <namespace>jabber:iq:time</namespace>
|
||||
* <className>org.jivesoftware.smack.packet.Time</className>
|
||||
* </iqProvider>
|
||||
* </smackProviders></pre>
|
||||
*
|
||||
* Each IQ provider is associated with an element name and a namespace. If multiple provider entries attempt to
|
||||
* register to handle the same namespace, the first entry loaded from the classpath will
|
||||
* take precedence. The IQ provider class can either implement the IQProvider interface,
|
||||
* or extend the IQ class. In the former case, each IQProvider is responsible for parsing
|
||||
* the raw XML stream to create an IQ instance. In the latter case, bean introspection is
|
||||
* used to try to automatically set properties of the IQ instance using the values found
|
||||
* in the IQ packet XML. For example, an XMPP time packet resembles the following:
|
||||
* <pre>
|
||||
* <iq type='get' to='joe@example.com' from='mary@example.com' id='time_1'>
|
||||
* <query xmlns='jabber:iq:time'>
|
||||
* <utc>20020910T17:58:35</utc>
|
||||
* <tz>MDT</tz>
|
||||
* <display>Tue Sep 10 12:58:35 2002</display>
|
||||
* </query>
|
||||
* </iq></pre>
|
||||
*
|
||||
* In order for this packet to be automatically mapped to the Time object listed in the
|
||||
* providers file above, it must have the methods setUtc(String), setTz(String), and
|
||||
* setDisplay(tz). The introspection service will automatically try to convert the String
|
||||
* value from the XML into a boolean, int, long, float, double, or Class depending on the
|
||||
* type the IQ instance expects.<p>
|
||||
*
|
||||
* A pluggable system for the <x> portion of packets also exists. Each x provider
|
||||
* is registered with a name space in the smack.providers file as in the following example:
|
||||
*
|
||||
* <pre>
|
||||
* <?xml version="1.0"?>
|
||||
* <smackProviders>
|
||||
* <xProvider namespace="jabber:iq:event"
|
||||
* className="org.jivesoftware.smack.packet.MessageEvent"/>
|
||||
* </smackProviders></pre>
|
||||
*
|
||||
* If multiple provider entries attempt to register to handle the same namespace, the
|
||||
* first entry loaded from the classpath will take precedence. Whenever an <x> element
|
||||
* is found in a packet, parsing will be passed to the correct provider. Each provider
|
||||
* can either implement the XProvider or be a standard Java Bean. In the former case,
|
||||
* each XProvider is responsible for parsing the raw XML stream to contruct an object.
|
||||
* In the latter case, bean introspection is used to try to automatically set the
|
||||
* properties of the class using the values in the x sub-element. When a XProvider is
|
||||
* not registered for a namespace, Smack will store all top-level elements of the sub-packet
|
||||
* in a Map and attach it to the packet.
|
||||
*
|
||||
* @author Matt Tucker
|
||||
*/
|
||||
public class ProviderManager {
|
||||
|
||||
private static Map extensionProviders = new Hashtable();
|
||||
private static Map iqProviders = new Hashtable();
|
||||
|
||||
static {
|
||||
// Load IQ processing providers.
|
||||
try {
|
||||
Enumeration enum = ProviderManager.class.getClassLoader().getResources(
|
||||
"WEB-INF/smack.providers");
|
||||
while (enum.hasMoreElements()) {
|
||||
URL url = (URL)enum.nextElement();
|
||||
java.io.InputStream providerStream = null;
|
||||
try {
|
||||
providerStream = url.openStream();
|
||||
XmlPullParser parser = getParserInstance();
|
||||
parser.setInput(providerStream, "UTF-8");
|
||||
int eventType = parser.getEventType();
|
||||
do {
|
||||
if (eventType == XmlPullParser.START_TAG) {
|
||||
if (parser.getName().equals("iqProvider")) {
|
||||
parser.next();
|
||||
String elementName = parser.nextText();
|
||||
parser.next();
|
||||
String namespace = parser.nextText();
|
||||
parser.next();
|
||||
String className = parser.nextText();
|
||||
parser.next();
|
||||
// Only add the provider for the namespace if one isn't
|
||||
// already registered.
|
||||
String key = getProviderKey(elementName, namespace);
|
||||
if (!iqProviders.containsKey(key)) {
|
||||
// Attempt to load the provider class and then create
|
||||
// a new instance if it's an IQProvider. Otherwise, if it's
|
||||
// an IQ class, add the class object itself, then we'll use
|
||||
// reflection later to create instances of the class.
|
||||
try {
|
||||
// Add the provider to the map.
|
||||
Class provider = Class.forName(className);
|
||||
if (IQProvider.class.isAssignableFrom(provider)) {
|
||||
iqProviders.put(key, provider.newInstance());
|
||||
}
|
||||
else if (IQ.class.isAssignableFrom(provider)) {
|
||||
iqProviders.put(key, provider);
|
||||
}
|
||||
}
|
||||
catch (ClassNotFoundException cnfe) {
|
||||
cnfe.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (parser.getName().equals("extensionProvider")) {
|
||||
parser.next();
|
||||
String elementName = parser.nextText();
|
||||
parser.next();
|
||||
String namespace = parser.nextText();
|
||||
parser.next();
|
||||
String className = parser.nextText();
|
||||
parser.next();
|
||||
// Only add the provider for the namespace if one isn't
|
||||
// already registered.
|
||||
String key = getProviderKey(elementName, namespace);
|
||||
if (!extensionProviders.containsKey(key)) {
|
||||
// Attempt to load the provider class and then create
|
||||
// a new instance if it's a Provider. Otherwise, if it's
|
||||
// a PacketExtension, add the class object itself and
|
||||
// then we'll use reflection later to create instances
|
||||
// of the class.
|
||||
try {
|
||||
// Add the provider to the map.
|
||||
Class provider = Class.forName(className);
|
||||
if (PacketExtensionProvider.class.isAssignableFrom(provider)) {
|
||||
extensionProviders.put(key, provider.newInstance());
|
||||
}
|
||||
else if (PacketExtension.class.isAssignableFrom(provider)) {
|
||||
extensionProviders.put(key, provider);
|
||||
}
|
||||
}
|
||||
catch (ClassNotFoundException cnfe) {
|
||||
cnfe.printStackTrace();
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
eventType = parser.next();
|
||||
} while (eventType != XmlPullParser.END_DOCUMENT);
|
||||
}
|
||||
finally {
|
||||
try { providerStream.close(); }
|
||||
catch (Exception e) { }
|
||||
}
|
||||
}
|
||||
}
|
||||
catch (Exception e) { }
|
||||
}
|
||||
|
||||
public synchronized static Object getIQProvider(String elementName, String namespace) {
|
||||
String key = getProviderKey(elementName, namespace);
|
||||
return iqProviders.get(key);
|
||||
}
|
||||
|
||||
public synchronized static Object getExtensionProvider(String elementName, String namespace) {
|
||||
String key = getProviderKey(elementName, namespace);
|
||||
return extensionProviders.get(key);
|
||||
}
|
||||
|
||||
private static String getProviderKey(String elementName, String nameSpace) {
|
||||
StringBuffer buf = new StringBuffer();
|
||||
buf.append("<").append(elementName).append("/><").append(nameSpace).append("/>");
|
||||
return buf.toString();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns an XML parser instance.
|
||||
*
|
||||
* @return an XML parser instance.
|
||||
*/
|
||||
private static XmlPullParser getParserInstance() {
|
||||
XmlPullParser parser = null;
|
||||
try {
|
||||
final String defaultProviderName = "org.xmlpull.mxp1.MXParserFactory";
|
||||
XmlPullParserFactory factory = null;
|
||||
try {
|
||||
// Attempt to load a factory implementation using a system property
|
||||
// and a classloader context.
|
||||
factory = XmlPullParserFactory.newInstance(
|
||||
System.getProperty(XmlPullParserFactory.PROPERTY_NAME),
|
||||
Thread.currentThread().getContextClassLoader().getClass());
|
||||
}
|
||||
catch (Exception e) {
|
||||
if (factory == null) {
|
||||
// Loading failed. Therefore, use the hardcoded default.
|
||||
factory = XmlPullParserFactory.newInstance(defaultProviderName, null);
|
||||
}
|
||||
}
|
||||
factory.setNamespaceAware(true);
|
||||
parser = factory.newPullParser();
|
||||
}
|
||||
catch (XmlPullParserException xppe) {
|
||||
xppe.printStackTrace();
|
||||
}
|
||||
return parser;
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue