1 files changed, 141 insertions, 0 deletions
diff --git a/src/net/java/sip/communicator/service/protocol/jabber/AbstractSmackInteroperabilityLayer.java b/src/net/java/sip/communicator/service/protocol/jabber/AbstractSmackInteroperabilityLayer.java
new file mode 100644
index 0000000..277da84
--- /dev/null
+++ b/src/net/java/sip/communicator/service/protocol/jabber/AbstractSmackInteroperabilityLayer.java
@@ -0,0 +1,141 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Copyright @ 2015 Atlassian Pty Ltd
+ *
+ * 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 net.java.sip.communicator.service.protocol.jabber;
+
+import net.java.sip.communicator.util.*;
+import org.jivesoftware.smack.provider.*;
+
+
+/**
+ *
+ * This class abstracts interactions within Smack XMPP library (mostly with
+ * its <tt>ProviderManager</tt> class).
+ * This exists because <tt>JingleIQProvider</tt> and <tt>ColibriIQProvider</tt>
+ * are in need to be used with Smack v4, where <tt>ProviderManager</tt>
+ * has a different interface.
+ *
+ * @author Maksym Kulish
+ */
+abstract public class AbstractSmackInteroperabilityLayer {
+
+    /**
+     * The <tt>Logger</tt> used by the 
+     * <tt>AbstractSmackInteroperabilityLayer</tt> class for
+     * reporting on improper implementations instantiation
+     */
+    private static final Logger logger = Logger.getLogger(
+            AbstractSmackInteroperabilityLayer.class);
+    
+    /**
+     * The implementation class to be used within its Jitsi application
+     */
+    private static Class<AbstractSmackInteroperabilityLayer> 
+            implementationClass;
+
+    /**
+     *  The instance of Smack interoperability layer implementation class
+     */
+    private static AbstractSmackInteroperabilityLayer
+            interopLayerInstance;
+
+    /**
+     * Get the instance of Smack interoperability layer implementation class
+     * 
+     * @return Smack interoperation layer implementation class
+     */
+    public static AbstractSmackInteroperabilityLayer getInstance() 
+    {
+        if (interopLayerInstance == null) 
+        {
+            try
+            {
+                interopLayerInstance = 
+                        implementationClass.newInstance();
+            }
+            catch (IllegalAccessException e)
+            {
+                // Never thrown within proper implementation
+                logger.fatal("Your AbstractSmackInteroperabilityLayer " +
+                        "implementation " +
+                        "cannot be accessed properly. " +
+                        "Please fix the implementation");
+            }
+            catch (InstantiationException e)
+            {
+                // Never thrown within proper implementation
+                logger.fatal("Your AbstractSmackInteroperabilityLayer " +
+                        "implementation " +
+                        "cannot be instantiated properly. " +
+                        "Please fix the implementation");
+            }
+        }
+        return interopLayerInstance;
+    }
+    
+    /**
+     * Set the Smack interoperation layer
+     * implementation class to be used within this Jitsi application
+     * @param implementationClass Smack interoperation layer 
+     *                            implementation class 
+     */
+    public static void setImplementationClass(
+            Class implementationClass) 
+    {
+        AbstractSmackInteroperabilityLayer.implementationClass 
+                = implementationClass;
+    }
+    
+    
+    /**
+     * Add <tt>PacketExtensionProvider</tt> to the list of known
+     * providers
+     * 
+     * @param elementName The element name where the matching is happening
+     * @param namespace The XML namespace used in that element
+     * @param provider <tt>PacketExtensionProvider</tt> implementation to be 
+     *                 used
+     */
+    abstract public void addExtensionProvider(
+            String elementName, String namespace, Object provider);
+
+    /**
+     * Add <tt>IQProvider</tt> to the list of known
+     * providers
+     *
+     * @param elementName The element name where the matching is happening
+     * @param namespace The XML namespace used in that element
+     * @param provider <tt>IQProvider</tt> implementation to be 
+     *                 used
+     */
+    abstract public void addIQProvider(
+            String elementName, String namespace, Object provider);
+
+    /**
+     * Get the <tt>PacketExtensionProvider</tt> for given element name and XML 
+     * namespace
+     * 
+     * @param elementName The element name where the matching is happening
+     * @param namespace The XML namespace used in that element
+     * @return <tt>PacketExtensionProvider</tt> implementation to be 
+     *                 used
+     */
+    abstract public PacketExtensionProvider getExtensionProvider(
+            String elementName, String namespace);
+
+    
+}