From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../impl/ImportReferenceImpl.java                  | 72 ++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/ImportReferenceImpl.java

(limited to 'sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/ImportReferenceImpl.java')

diff --git a/sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/ImportReferenceImpl.java b/sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/ImportReferenceImpl.java
new file mode 100644
index 0000000000..9c5b1818c8
--- /dev/null
+++ b/sca-java-2.x/branches/2.0/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/ImportReferenceImpl.java
@@ -0,0 +1,72 @@
+/*
+ * 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.osgi.remoteserviceadmin.impl;
+
+import org.apache.tuscany.sca.node.Node;
+import org.osgi.framework.ServiceReference;
+import org.osgi.service.remoteserviceadmin.EndpointDescription;
+import org.osgi.service.remoteserviceadmin.ImportReference;
+import org.osgi.service.remoteserviceadmin.ImportRegistration;
+
+/**
+ * Implementation of ImportReference. It keeps a reference count of ImportRegistrations
+ */
+public class ImportReferenceImpl implements ImportReference {
+    private Node node;
+    private final ServiceReference importedService;
+    private final EndpointDescription endpointDescription;
+    private int count = 0;
+
+    /**
+     * @param exportedService
+     * @param endpointDescription
+     */
+    public ImportReferenceImpl(Node node, ServiceReference importedService, EndpointDescription endpointDescription) {
+        super();
+        this.node = node;
+        this.importedService = importedService;
+        this.endpointDescription = endpointDescription;
+    }
+
+    public ServiceReference getImportedService() {
+        return importedService;
+    }
+
+    public EndpointDescription getImportedEndpoint() {
+        return endpointDescription;
+    }
+    
+    public synchronized ImportRegistration register() {
+        count++;
+        return new ImportRegistrationImpl(this);
+    }
+
+    public synchronized void unregister() {
+        if (count > 0) {
+            count--;
+        }
+        if (count == 0) {
+            if (node != null) {
+                node.stop();
+                node = null;
+            }
+        }
+    }
+}
-- 
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