Fix FELIX-2594 Have a way to create new custom iPojo handler without having to specify a handler usage
Allow to auto-attach primitive handlers to primitive components.
Handlers an be auto-attached if they are contained in the 'org.apache.felix.ipojo.handler.auto.primitive' system property. This property's value must be the list (command separated) of full handler name (namespace:name).

git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1006281 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/ipojo/core/src/main/java/org/apache/felix/ipojo/ComponentFactory.java b/ipojo/core/src/main/java/org/apache/felix/ipojo/ComponentFactory.java
index ade79b1..a91362f 100644
--- a/ipojo/core/src/main/java/org/apache/felix/ipojo/ComponentFactory.java
+++ b/ipojo/core/src/main/java/org/apache/felix/ipojo/ComponentFactory.java
@@ -1,4 +1,4 @@
-/* 
+/*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
@@ -30,6 +30,7 @@
 import org.apache.felix.ipojo.architecture.ComponentTypeDescription;
 import org.apache.felix.ipojo.metadata.Attribute;
 import org.apache.felix.ipojo.metadata.Element;
+import org.apache.felix.ipojo.parser.ParseUtils;
 import org.apache.felix.ipojo.parser.PojoMetadata;
 import org.apache.felix.ipojo.util.Logger;
 import org.apache.felix.ipojo.util.Tracker;
@@ -49,6 +50,15 @@
  */
 public class ComponentFactory extends IPojoFactory implements TrackerCustomizer {
 
+	/**
+	 * System property set to automatically attach primitive handlers to primitive
+	 * component types.
+	 * The value is a String parsed as a list (comma separated). Each element is
+	 * the fully qualified name of the handler <code>namespace:name</code>.
+	 */
+	public static final String HANDLER_AUTO_PRIMITIVE = "org.apache.felix.ipojo.handler.auto.primitive";
+
+
     /**
      * The tracker used to track required handler factories.
      * Immutable once set.
@@ -272,6 +282,8 @@
      * Computes required handlers.
      * This method does not manipulate any non-immutable fields,
      * so does not need to be synchronized.
+     * This method checks the {@link ComponentFactory#HANDLER_AUTO_PRIMITIVE}
+     * system property to add the listed handlers to the required handler set.
      * @return the required handler list.
      */
     public List getRequiredHandlerList() {
@@ -316,6 +328,29 @@
             list.add(reqCallback);
         }
 
+        // Manage auto attached handler.
+        String v = System.getProperty(HANDLER_AUTO_PRIMITIVE);
+        if (v != null  && v.length() != 0) {
+        	String[] hs = ParseUtils.split(v, ",");
+        	for (int i = 0; i < hs.length; i++) {
+        		String h = hs[i].trim();
+        		String[] segments = h.split(":");
+        		RequiredHandler rq = null;
+        		if (segments.length == 2) { // External handler
+        			rq = new RequiredHandler(segments[1], segments[0]);
+        		} else if (segments.length == 1) { // Core handler
+        			rq = new RequiredHandler(segments[1], null);
+        		} // Others case are ignored.
+
+        		if (rq != null) {
+        			// Check it's not already contained
+        			if (! list.contains(rq)) {
+        				list.add(rq);
+        			}
+        		}
+        	}
+        }
+
 
         return list;
     }
@@ -407,7 +442,7 @@
     public String getVersion() {
         return m_version;
     }
-    
+
     public ClassLoader getBundleClassLoader() {
         return m_classLoader;
     }
diff --git a/ipojo/core/src/main/java/org/apache/felix/ipojo/IPojoFactory.java b/ipojo/core/src/main/java/org/apache/felix/ipojo/IPojoFactory.java
index e0454de..3ffa2b2 100644
--- a/ipojo/core/src/main/java/org/apache/felix/ipojo/IPojoFactory.java
+++ b/ipojo/core/src/main/java/org/apache/felix/ipojo/IPojoFactory.java
@@ -1,4 +1,4 @@
-/* 

+/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

@@ -166,7 +166,7 @@
         }

 

         m_requiredHandlers = getRequiredHandlerList(); // Call sub-class to get the list of required handlers.

-        

+

         m_logger.log(Logger.INFO, "New factory created : " + m_factoryName);

     }

 

@@ -307,7 +307,7 @@
             m_logger.log(Logger.ERROR, e.getMessage());

             throw new ConfigurationException(e.getMessage(), m_factoryName);

         }

-        

+

 

     }

 

@@ -545,7 +545,7 @@
         m_described = false;

         m_componentDesc = null;

         m_componentInstances.clear();

-        

+

         m_logger.log(Logger.INFO, "Factory " + m_factoryName + " stopped");

 

     }

@@ -586,17 +586,26 @@
 

         if (m_isPublic) {

             // Exposition of the factory service

-            BundleContext bc = SecurityHelper.selectContextToRegisterServices(m_componentDesc.getFactoryInterfacesToPublish(), 

+            BundleContext bc = SecurityHelper.selectContextToRegisterServices(m_componentDesc.getFactoryInterfacesToPublish(),

                     m_context, getIPOJOBundleContext());

             m_sr =

                     bc.registerService(m_componentDesc.getFactoryInterfacesToPublish(), this, m_componentDesc

                             .getPropertiesToPublish());

         }

-        

+

         m_logger.log(Logger.INFO, "Factory " + m_factoryName + " started");

 

     }

-    

+

+    /**

+     * For testing purpose <b>ONLY</b>.

+     * This method recomputes the required handler list.

+     */

+    public void restart() {

+    	// Call sub-class to get the list of required handlers.

+        m_requiredHandlers = getRequiredHandlerList();

+    }

+

     /**

      * Gets the iPOJO Bundle Context.

      * @return the iPOJO Bundle Context

@@ -774,7 +783,7 @@
         String name = (String) ref.getProperty(Handler.HANDLER_NAME_PROPERTY);

         String namespace = (String) ref.getProperty(Handler.HANDLER_NAMESPACE_PROPERTY);

         if (HandlerFactory.IPOJO_NAMESPACE.equals(namespace)) {

-            return name.equalsIgnoreCase(req.getName()) && req.getNamespace() == null; 

+            return name.equalsIgnoreCase(req.getName()) && req.getNamespace() == null;

         }

         return name.equalsIgnoreCase(req.getName()) && namespace.equalsIgnoreCase(req.getNamespace());

     }

diff --git a/ipojo/tests/core/external-handlers/pom.xml b/ipojo/tests/core/external-handlers/pom.xml
index 727f2f4..f182bf2 100644
--- a/ipojo/tests/core/external-handlers/pom.xml
+++ b/ipojo/tests/core/external-handlers/pom.xml
@@ -70,16 +70,16 @@
 					<instructions>

 						<Export-Package>

 							org.apache.felix.ipojo.test.scenarios.eh.service

-						</Export-Package>

+							</Export-Package>

 						<Bundle-SymbolicName>

 							${project.artifactId}

-						</Bundle-SymbolicName>

+							</Bundle-SymbolicName>

 						<Private-Package>

 							org.apache.felix.ipojo.test*

-						</Private-Package>

+							</Private-Package>

 						<Test-Suite>

 							org.apache.felix.ipojo.test.scenarios.eh.ExternalHandlerTestSuite

-						</Test-Suite>

+							</Test-Suite>

 					</instructions>

 				</configuration>

 			</plugin>

@@ -105,6 +105,19 @@
 					<target>1.4</target>

 				</configuration>

 			</plugin>

+

+			<plugin>

+				<groupId>org.apache.felix</groupId>

+				<artifactId>maven-junit4osgi-plugin</artifactId>

+				<version>1.1.0-SNAPSHOT</version>

+				<executions>

+					<execution>

+						<goals>

+							<goal>test</goal>

+						</goals>

+					</execution>

+				</executions>

+			</plugin>

 		</plugins>

 	</build>

 </project>

diff --git a/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/component/CheckServiceHandler.java b/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/component/CheckServiceHandler.java
index cd43545..7bdcfb0 100644
--- a/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/component/CheckServiceHandler.java
+++ b/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/component/CheckServiceHandler.java
@@ -1,4 +1,4 @@
-/* 

+/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

@@ -30,21 +30,21 @@
 import org.osgi.framework.ServiceRegistration;

 

 public class CheckServiceHandler extends PrimitiveHandler implements CheckService {

-	

+

 	ServiceRegistration sr;

 	boolean isValid;

 	int changes = 0;

 	static final String NAMESPACE = "org.apache.felix.ipojo.test.handler.checkservice";

-	

+

 	Properties props = new Properties();

 

 	public void configure(Element metadata, Dictionary configuration) {

 		Element[] meta = metadata.getElements("check", NAMESPACE);

-		if(meta == null) { return;	}		

-		// Get handler props 

+		if(meta == null) { return;	}

+		// Get handler props

 		props.put("instance.name", configuration.get("instance.name"));

 		if(configuration.get("csh.simple") != null) { props.put("Simple", configuration.get("csh.simple")); }

-		if(configuration.get("csh.map") != null) { 

+		if(configuration.get("csh.map") != null) {

 			Dictionary m = (Dictionary) configuration.get("csh.map");

             if (m.size() > 0) {

                 props.put("Map1", m.get("a"));

@@ -53,28 +53,28 @@
             }

 		}

 		props.put("changes", new Integer(changes));

-		

+

 	}

-	

+

 	public void initializeComponentFactory(ComponentTypeDescription cd, Element metadata) {

 	    cd.addProperty(new PropertyDescription("csh.simple", "java.lang.String", null));

         cd.addProperty(new PropertyDescription("csh.map", "java.util.Dictionary", null));

 	}

-	

+

 	public void start() {

 		if(sr == null) {

 			sr = getInstanceManager().getContext().registerService(CheckService.class.getName(), this, props);

 		}

 		isValid = true;

 	}

-	

+

 	public void stop() {

 		isValid = false;

 		synchronized(this) {

 			if(sr != null) { sr.unregister(); }

 		}

 	}

-	

+

 	public boolean check() {

 		if(isValid) { isValid = false;}

 		else { isValid = true; }

@@ -84,7 +84,7 @@
 	public Properties getProps() {

 		return props;

 	}

-	

+

 	public void stateChanged(int state) {

 		if (sr != null) {

 		    changes++;

@@ -96,7 +96,7 @@
 	public String getName() {

 		return NAMESPACE;

 	}

-	

+

 	public HandlerDescription getDescription() {

 		return new CheckServiceHandlerDescription(this);

 	}

diff --git a/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/AutoHandlerTest.java b/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/AutoHandlerTest.java
new file mode 100644
index 0000000..48a3ec9
--- /dev/null
+++ b/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/AutoHandlerTest.java
@@ -0,0 +1,85 @@
+/*

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you 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 org.apache.felix.ipojo.test.scenarios.eh;

+

+import java.util.List;

+import java.util.Properties;

+

+import org.apache.felix.ipojo.ComponentFactory;

+import org.apache.felix.ipojo.ComponentInstance;

+import org.apache.felix.ipojo.architecture.HandlerDescription;

+import org.apache.felix.ipojo.junit4osgi.OSGiTestCase;

+import org.apache.felix.ipojo.test.scenarios.component.CheckServiceHandlerDescription;

+import org.apache.felix.ipojo.test.scenarios.util.Utils;

+

+public class AutoHandlerTest extends OSGiTestCase {

+

+	private static final String ORG_APACHE_FELIX_IPOJO_HANDLER_AUTO_PRIMITIVE = "org.apache.felix.ipojo.handler.auto.primitive";

+

+	ComponentInstance instance;

+

+	ComponentFactory factory;

+

+	public void setUp() {

+		factory = (ComponentFactory) Utils.getFactoryByName(getContext(), "HANDLER-HandlerTesterWO");

+		System.clearProperty(ORG_APACHE_FELIX_IPOJO_HANDLER_AUTO_PRIMITIVE);

+	}

+

+	public void tearDown() {

+		if (instance != null) {

+			instance.dispose();

+		}

+		instance = null;

+

+		System.clearProperty(ORG_APACHE_FELIX_IPOJO_HANDLER_AUTO_PRIMITIVE);

+	}

+

+	public void testRequiredHandlerList() {

+		List list = factory.getRequiredHandlers();

+		assertFalse(list.contains("org.apache.felix.ipojo.test.handler.checkservice:check"));

+

+		String v = "org.apache.felix.ipojo.test.handler.checkservice:check";

+		System.setProperty(ORG_APACHE_FELIX_IPOJO_HANDLER_AUTO_PRIMITIVE, v);

+

+		factory.stop();

+		factory.restart();

+		factory.start();

+

+		list = factory.getRequiredHandlers();

+		assertTrue(list.contains("org.apache.felix.ipojo.test.handler.checkservice:check"));

+

+	}

+

+	public void testInstanceCreation() throws Exception {

+		String v = "org.apache.felix.ipojo.test.handler.checkservice:check";

+		System.setProperty(ORG_APACHE_FELIX_IPOJO_HANDLER_AUTO_PRIMITIVE, v);

+

+		factory.stop();

+		factory.restart();

+		factory.start();

+

+		instance = factory.createComponentInstance(new Properties());

+		assertEquals(ComponentInstance.VALID, instance.getState());

+

+		HandlerDescription hd = instance.getInstanceDescription().getHandlerDescription(v);

+		assertNotNull(hd);

+		assertTrue(hd instanceof CheckServiceHandlerDescription);

+

+	}

+}

diff --git a/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/ExternalHandlerTestSuite.java b/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/ExternalHandlerTestSuite.java
index 9965643..4f66028 100644
--- a/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/ExternalHandlerTestSuite.java
+++ b/ipojo/tests/core/external-handlers/src/main/java/org/apache/felix/ipojo/test/scenarios/eh/ExternalHandlerTestSuite.java
@@ -1,4 +1,4 @@
-/* 

+/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

@@ -29,6 +29,7 @@
 	public static Test suite(BundleContext bc) {

 		OSGiTestSuite ots = new OSGiTestSuite("External Handler Test Suite", bc);

 		ots.addTestSuite(HandlerTest.class);

+		ots.addTestSuite(AutoHandlerTest.class);

 		return ots;

 	}

 

diff --git a/ipojo/tests/core/external-handlers/src/main/resources/metadata.xml b/ipojo/tests/core/external-handlers/src/main/resources/metadata.xml
index 343244e..b7da090 100644
--- a/ipojo/tests/core/external-handlers/src/main/resources/metadata.xml
+++ b/ipojo/tests/core/external-handlers/src/main/resources/metadata.xml
@@ -29,5 +29,11 @@
 		<!-- Empty dictionary -->

 		</property>

 	</instance>

-	

+

+	<!-- The handler will be added using the auto handler property -->

+	<component

+		classname="org.apache.felix.ipojo.test.scenarios.component.FooProviderType1"

+		name="HANDLER-HandlerTesterWO" architecture="true">

+	</component>

+

 </ipojo>