TUSCANY-3496 - Adding extensibility to node api to allow other applications to tap to it and provide services that require introspecting node metadata

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1086667 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 100 insertions, 4 deletions

diff --git a/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java
index 502b2f854c..1dfaea6a0a 100644
--- a/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java
+++ b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/Node.java
@@ -22,9 +22,6 @@ package org.apache.tuscany.sca.node;
 import org.apache.tuscany.sca.node.configuration.NodeConfiguration;
 import org.oasisopen.sca.ServiceReference;
 
-
-
-
 /**
  * Represents an SCA processing node.
  * A node is loaded with an SCA composites. It can start and stop that composite.
@@ -82,5 +79,5 @@ public interface Node {
      * @param <B> the Java type of the business interface for the service
      * @return a ServiceReference for the designated service
      */
-    <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String serviceName);    
+    <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String serviceName);
 }
diff --git a/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeActivator.java b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeActivator.java
new file mode 100644
index 0000000000..9a63746908
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeActivator.java
@@ -0,0 +1,29 @@
+/*
+ * 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.tuscany.sca.node.extensibility;
+
+import org.apache.tuscany.sca.node.Node;
+
+public interface NodeActivator {
+
+    void nodeStarted(Node node);
+
+    void nodeStopped(Node node);
+}
diff --git a/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeActivatorExtensionPoint.java b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeActivatorExtensionPoint.java
new file mode 100644
index 0000000000..e78c46e8d4
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeActivatorExtensionPoint.java
@@ -0,0 +1,32 @@
+/*
+ * 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.tuscany.sca.node.extensibility;
+
+import java.util.List;
+
+
+public interface NodeActivatorExtensionPoint extends NodeActivator {
+
+    void addNodeActivator(NodeActivator listener);
+
+    void removeNodeActivator(NodeActivator listener);
+
+    List<NodeActivator> getNodeActivators();
+}
diff --git a/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeExtension.java b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeExtension.java
new file mode 100644
index 0000000000..80c304b078
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-api/src/main/java/org/apache/tuscany/sca/node/extensibility/NodeExtension.java
@@ -0,0 +1,38 @@
+/*
+ * 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.tuscany.sca.node.extensibility;
+
+import org.apache.tuscany.sca.assembly.Composite;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.node.Node;
+import org.apache.tuscany.sca.node.configuration.NodeConfiguration;
+
+public interface NodeExtension extends Node {
+
+    String getURI();
+
+    String getDomainURI();
+
+    NodeConfiguration getConfiguration();
+
+    Composite getDomainComposite();
+
+    ExtensionPointRegistry getExtensionPointRegistry();
+}