1 files changed, 89 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainer.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainer.java
new file mode 100644
index 0000000000..efe7c94b54
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/CompositeScopeContainer.java
@@ -0,0 +1,89 @@
+/*
+ * 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.core.scope.impl;
+
+import org.apache.tuscany.sca.core.factory.InstanceWrapper;
+import org.apache.tuscany.sca.core.scope.AbstractScopeContainer;
+import org.apache.tuscany.sca.core.scope.Scope;
+import org.apache.tuscany.sca.core.scope.TargetDestructionException;
+import org.apache.tuscany.sca.core.scope.TargetNotFoundException;
+import org.apache.tuscany.sca.core.scope.TargetResolutionException;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.oasisopen.sca.ServiceUnavailableException;
+
+/**
+ * A scope context which manages atomic component instances keyed by composite
+ * 
+ * @version $Rev$ $Date$
+ */
+public class CompositeScopeContainer<KEY> extends AbstractScopeContainer<KEY> {
+    private InstanceWrapper<?> wrapper;
+
+    public CompositeScopeContainer(RuntimeComponent component) {
+        super(Scope.COMPOSITE, component);
+    }
+
+    @Override
+    public synchronized void stop() {
+        super.stop();
+        if (wrapper != null) {
+            try {
+                wrapper.stop();
+            } catch (TargetDestructionException e) {
+                wrapper = null;
+                throw new IllegalStateException(e);
+            }
+        }
+        wrapper = null;
+    }
+
+    @Override
+    public synchronized InstanceWrapper getWrapper(KEY contextId) throws TargetResolutionException {
+        if (wrapper == null) {
+            try {
+                wrapper = createInstanceWrapper();
+                wrapper.start();
+            } catch (Exception e) {
+                wrapper = null;
+                throw new ServiceUnavailableException(e);
+            }
+        }
+        return wrapper;
+    }
+
+    @Override
+    public InstanceWrapper getAssociatedWrapper(KEY contextId) throws TargetResolutionException {
+        if (wrapper == null) {
+            throw new TargetNotFoundException(component.getURI());
+        }
+        return wrapper;
+    }
+
+    @Override
+    public synchronized void start() {
+        super.start();
+        if (isEagerInit()) {
+            try {
+                getWrapper(null);
+            } catch (TargetResolutionException e) {
+                throw new IllegalStateException(e);
+            }
+        }
+    }
+}