8 files changed, 569 insertions, 0 deletions
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/LICENSE b/java/sca-contrib/modules/host-corba-jse-tns/LICENSE
new file mode 100644
index 0000000000..6e529a25c4
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/LICENSE
@@ -0,0 +1,205 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
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+
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+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
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+      where such license applies only to those patent claims licensable
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+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          of the NOTICE file are for informational purposes only and
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+          notices within Derivative Works that You distribute, alongside
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+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
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+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
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+      origin of the Work and reproducing the content of the NOTICE file.
+
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+   Unless required by applicable law or agreed to in writing, software
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+
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/META-INF/MANIFEST.MF b/java/sca-contrib/modules/host-corba-jse-tns/META-INF/MANIFEST.MF
new file mode 100644
index 0000000000..8edf701bf7
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/META-INF/MANIFEST.MF
@@ -0,0 +1,21 @@
+Manifest-Version: 1.0
+Private-Package: org.apache.tuscany.sca.host.corba.jse.tns;version="1.
+ 4"
+Tool: Bnd-0.0.255
+Bundle-Name: Apache Tuscany SCA Transient Name Server CORBA Host
+Created-By: 1.6.0_07 (Sun Microsystems Inc.)
+Bundle-Vendor: The Apache Software Foundation
+Bundle-Version: 2.0.0
+Bnd-LastModified: 1225397430015
+Bundle-ManifestVersion: 2
+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt
+Bundle-Description: Apache Tuscany SCA Transient Name Server CORBA Hos
+ t
+Import-Package: org.apache.tuscany.sca.core;version="2.0.0",
+ org.apache.tuscany.sca.host.corba;version="2.0.0",
+ org.apache.tuscany.sca.host.corba.jse;version="2.0.0",
+ org.apache.tuscany.sca.host.corba.naming;version="2.0.0",
+ org.omg.CORBA
+Bundle-SymbolicName: org.apache.tuscany.sca.host.corba.jse.tns
+Bundle-DocURL: http://www.apache.org/
+
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/NOTICE b/java/sca-contrib/modules/host-corba-jse-tns/NOTICE
new file mode 100644
index 0000000000..51042eab05
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/NOTICE
@@ -0,0 +1,6 @@
+${pom.name}
+Copyright (c) 2005 - 2009 The Apache Software Foundation
+
+This product includes software developed by
+The Apache Software Foundation (http://www.apache.org/).
+
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/pom.xml b/java/sca-contrib/modules/host-corba-jse-tns/pom.xml
new file mode 100644
index 0000000000..5014507384
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/pom.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ * 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.    
+-->
+<project>
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.tuscany.sca</groupId>
+        <artifactId>tuscany-modules</artifactId>
+        <version>2.0-SNAPSHOT</version>
+    </parent>
+    <artifactId>tuscany-host-corba-jse-tns</artifactId>
+    <name>Apache Tuscany SCA Transient Name Server CORBA Host</name>
+
+    <dependencies>
+    
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-host-corba</artifactId>
+            <version>2.0-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-host-corba-jse</artifactId>
+            <version>2.0-SNAPSHOT</version>
+        </dependency>
+        
+        <dependency>
+            <groupId>org.apache.tuscany.sca</groupId>
+            <artifactId>tuscany-binding-corba-runtime</artifactId>
+            <version>2.0-SNAPSHOT</version>
+            <scope>test</scope>
+        </dependency>
+        
+    </dependencies>
+
+</project>
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/CorbaRuntimeModuleActivator.java b/java/sca-contrib/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/CorbaRuntimeModuleActivator.java
new file mode 100644
index 0000000000..312d739c53
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/CorbaRuntimeModuleActivator.java
@@ -0,0 +1,53 @@
+/*
+ * 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 org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ModuleActivator;
+import org.apache.tuscany.sca.host.corba.CorbaHostExtensionPoint;
+import org.apache.tuscany.sca.host.corba.jse.DefaultCorbaHost;
+
+/**
+ * @version $Rev: 683329 $ $Date: 2008-08-06 19:06:39 +0200 (śro, 06 sie 2008) $
+ */
+public class CorbaRuntimeModuleActivator implements ModuleActivator {
+    // private static final Logger logger =
+    // Logger.getLogger(CorbaRuntimeModuleActivator.class.getName());
+
+    private TnsDefaultCorbaHost server;
+
+    public void start(ExtensionPointRegistry extensionPointRegistry) {       
+        // Register our Corba host
+        CorbaHostExtensionPoint corbaHosts = extensionPointRegistry.getExtensionPoint(CorbaHostExtensionPoint.class);
+        server = new TnsDefaultCorbaHost();
+        if (corbaHosts.getCorbaHosts().size() > 0 && corbaHosts.getCorbaHosts().get(0) instanceof DefaultCorbaHost) {
+            // Set TnsDefaultCorbaHost as default when DefaultCorbaHost was registered before
+            corbaHosts.getCorbaHosts().add(0, server);     
+        } else {
+            corbaHosts.getCorbaHosts().add(server);
+        }
+    }
+
+    public void stop(ExtensionPointRegistry registry) {
+        if (server != null) {
+            server.stop();
+        }
+    }
+
+}
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/TnsDefaultCorbaHost.java b/java/sca-contrib/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/TnsDefaultCorbaHost.java
new file mode 100644
index 0000000000..2dc2c7ddd4
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/src/main/java/org/apache/tuscany/sca/host/corba/jse/tns/TnsDefaultCorbaHost.java
@@ -0,0 +1,116 @@
+/*
+ * 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.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 {
+    
+    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();
+        }
+    }
+
+}
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator b/java/sca-contrib/modules/host-corba-jse-tns/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
new file mode 100644
index 0000000000..906ec4efce
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
@@ -0,0 +1,18 @@
+# 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.CorbaRuntimeModuleActivator
diff --git a/java/sca-contrib/modules/host-corba-jse-tns/src/test/java/org/apache/tuscany/sca/host/corba/testing/TnsDefaultCorbaHostTestCase.java b/java/sca-contrib/modules/host-corba-jse-tns/src/test/java/org/apache/tuscany/sca/host/corba/testing/TnsDefaultCorbaHostTestCase.java
new file mode 100644
index 0000000000..39d9191f80
--- /dev/null
+++ b/java/sca-contrib/modules/host-corba-jse-tns/src/test/java/org/apache/tuscany/sca/host/corba/testing/TnsDefaultCorbaHostTestCase.java
@@ -0,0 +1,97 @@
+/*
+ * 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.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
+    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);
+        }
+    }
+}
+