Create a branch for beta3

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1147804 13f79535-47bb-0310-9956-ffa450edef68

3 files changed, 236 insertions, 0 deletions

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/TnsDefaultCorbaHost.java b/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/TnsDefaultCorbaHost.java
new file mode 100644
index 0000000000..4a395631b1
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/TnsDefaultCorbaHost.java
@@ -0,0 +1,120 @@
+/*
+ * 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.host.corba.jse.tns;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.logging.Logger;
+
+import org.apache.tuscany.sca.core.LifeCycleListener;
+import org.apache.tuscany.sca.host.corba.CorbaHost;
+import org.apache.tuscany.sca.host.corba.CorbaHostException;
+import org.apache.tuscany.sca.host.corba.CorbanameURL;
+import org.apache.tuscany.sca.host.corba.SocketUtil;
+import org.apache.tuscany.sca.host.corba.jse.DefaultCorbaHost;
+import org.apache.tuscany.sca.host.corba.naming.TransientNameServer;
+import org.apache.tuscany.sca.host.corba.naming.TransientNameService;
+import org.omg.CORBA.Object;
+
+/**
+ * @version $Rev$ $Date$
+ * Default implementation of CORBA host
+ */
+public class TnsDefaultCorbaHost implements CorbaHost, LifeCycleListener {
+    
+    private static final Logger logger = Logger.getLogger(TnsDefaultCorbaHost.class.getName());
+    private Map<Integer, TransientNameServer> localServers = new ConcurrentHashMap<Integer, TransientNameServer>();
+    private Map<Integer, Integer> clientsCount = new ConcurrentHashMap<Integer, Integer>();
+    private CorbaHost targetHost = new DefaultCorbaHost();
+
+    public void registerServant(String uri, Object servantObject) throws CorbaHostException {
+        CorbanameURL details = new CorbanameURL(uri);
+        if (SocketUtil.isLocalhost(details.getHost())) {
+            createLocalNameServer(details.getPort());
+        }
+        targetHost.registerServant(uri, servantObject);
+    }
+
+    public void unregisterServant(String uri) throws CorbaHostException {
+        targetHost.unregisterServant(uri);
+        CorbanameURL details = new CorbanameURL(uri);
+        if (SocketUtil.isLocalhost(details.getHost())) {
+            releaseLocalNameServer(details.getPort());
+        }
+    }
+
+    public Object lookup(String uri) throws CorbaHostException {
+        return targetHost.lookup(uri);
+    }
+
+    /**
+     * Starts transient name server under given port. If TNS was previously
+     * spawned it increments clients counter.
+     */
+    synchronized private void createLocalNameServer(int port) throws CorbaHostException {
+        int useCount = clientsCount.containsKey(port) ? clientsCount.get(port) : 0;
+        // no server previously spawned
+        if (useCount == 0) {
+            TransientNameServer server =
+                new TransientNameServer("localhost", port, TransientNameService.DEFAULT_SERVICE_NAME);
+            Thread thread = server.start();
+            if (thread == null) {
+                throw new CorbaHostException("TransientNameServer couldn't be started");
+            } else {
+                localServers.put(port, server);
+            }
+        }
+        clientsCount.put(port, ++useCount);
+    }
+
+    /**
+     * Stops transient name server if there is only one client left using such
+     * TNS. Decrements clients counter if TNS is used by 2 or more clients.
+     */
+    synchronized private void releaseLocalNameServer(int port) throws CorbaHostException {
+        int useCount = clientsCount.containsKey(port) ? clientsCount.get(port) : 0;
+        if (useCount == 1) {
+            // last client executed stop, cleaning up
+            TransientNameServer server = localServers.get(port);
+            if (server != null) {
+                server.stop();
+                clientsCount.remove(port);
+                localServers.remove(port);
+            } else {
+                logger.warning("Local name server on port " + port + " was null!");
+            }
+        } else if (useCount > 1) {
+            clientsCount.put(port, --useCount);
+        } else {
+            logger.warning("Tried to release non existing local name server on port " + port);
+        }
+
+    }
+
+    public void stop() {
+        for (TransientNameServer tns : localServers.values()) {
+            tns.stop();
+        }
+    }
+
+    public void start() {
+    }
+
+}
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/main/resources/META-INF/services/org.apache.tuscany.sca.host.corba.CorbaHost b/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/main/resources/META-INF/services/org.apache.tuscany.sca.host.corba.CorbaHost
new file mode 100644
index 0000000000..5706b13a42
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/main/resources/META-INF/services/org.apache.tuscany.sca.host.corba.CorbaHost
@@ -0,0 +1,17 @@
+# 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. 

+org.apache.tuscany.sca.host.corba.jse.tns.TnsDefaultCorbaHost;ranking=10

diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/test/java/org/apache/tuscany/sca/host/corba/testing/TnsDefaultCorbaHostTestCase.java b/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/test/java/org/apache/tuscany/sca/host/corba/testing/TnsDefaultCorbaHostTestCase.java
new file mode 100644
index 0000000000..85ac98cfef
--- /dev/null
+++ b/sca-java-2.x/branches/2.0-Beta3/modules/host-corba-jse-tns/src/test/java/org/apache/tuscany/sca/host/corba/testing/TnsDefaultCorbaHostTestCase.java
@@ -0,0 +1,99 @@
+/*
+ * 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.host.corba.testing;
+
+import static junit.framework.Assert.assertTrue;
+import static junit.framework.Assert.fail;
+
+import java.net.Socket;
+import java.net.SocketException;
+
+import org.apache.tuscany.sca.binding.corba.provider.service.DynaCorbaServant;
+import org.apache.tuscany.sca.host.corba.jse.tns.TnsDefaultCorbaHost;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Ignore;
+import org.junit.Test;
+
+/**
+ * @version $Rev$ $Date$
+ * General tests
+ */
+public class TnsDefaultCorbaHostTestCase {
+
+    private static TnsDefaultCorbaHost host;
+
+    @BeforeClass
+    public static void start() {
+        try {
+            host = new TnsDefaultCorbaHost();
+        } catch (Throwable e) {
+            e.printStackTrace();
+            fail(e.getMessage());
+        }
+    }
+
+    @AfterClass
+    public static void stop() {
+        host.stop();
+    }
+
+    /**
+     * Test for creating and releasing local name server
+     */
+    @Test
+    @Ignore
+    public void test_localNameServer() {
+        int testPort = 5070;
+        try {
+            String testUri1 = "corbaname::localhost:" + testPort + "#Test1";
+            String testUri2 = "corbaname::localhost:" + testPort + "#Test2";
+            String testUri3 = "corbaname::localhost:" + testPort + "#Test3";
+            DynaCorbaServant servant = new DynaCorbaServant(null, "IDL:org/apache/tuscany:1.0");
+            host.registerServant(testUri1, servant);
+            host.registerServant(testUri2, servant);
+            host.registerServant(testUri3, servant);
+            Thread.sleep(1000);
+            // make test connection to name server
+            Socket socket = new Socket("localhost", testPort);
+            socket.close();
+            // and stop server
+            host.unregisterServant(testUri1);
+            host.unregisterServant(testUri2);
+            // after releasing 2 clients 3rd should still hold the server
+            socket = new Socket("localhost", testPort);
+            socket.close();
+            host.unregisterServant(testUri3);
+            Thread.sleep(1000);
+        } catch (Exception e) {
+            e.printStackTrace();
+            fail();
+        }
+        try {
+            // previously made 3rd stop so there should be no name server under
+            // this port
+            new Socket("localhost", testPort);
+            fail();
+        } catch (Exception e) {
+            assertTrue(e instanceof SocketException);
+        }
+    }
+}
+