Start to add an Apache Tomcat Tribes based replicated EndpointRegistry

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@782800 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 291 insertions, 0 deletions

diff --git a/java/sca/modules/endpoint-tribes/META-INF/MANIFEST.MF b/java/sca/modules/endpoint-tribes/META-INF/MANIFEST.MF
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+++ b/java/sca/modules/endpoint-tribes/META-INF/MANIFEST.MF
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+Manifest-Version: 1.0

+Private-Package: org.apache.tuscany.sca.xsd.impl;version="2.0.0"

+Tool: Bnd-0.0.255

+Bundle-Name: Apache Tuscany SCA Tomcat Tribes Based EndPoint Registry

+Created-By: 1.6.0_07 (Sun Microsystems Inc.)

+Bundle-Vendor: The Apache Software Foundation

+Bundle-Version: 2.0.0

+Bnd-LastModified: 1225397174343

+Bundle-ManifestVersion: 2

+Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt

+Bundle-Description: Apache Tuscany SCA XSD Model

+Bundle-SymbolicName: org.apache.tuscany.sca.endpoint.tribes

+Bundle-DocURL: http://www.apache.org/

+Bundle-RequiredExecutionEnvironment: J2SE-1.5,JavaSE-1.6
+Import-Package: org.apache.tuscany.sca.assembly;version="2.0.0",

+ org.apache.tuscany.sca.policy;version="2.0.0",

+ org.apache.tuscany.sca.runtime;version="2.0.0"

diff --git a/java/sca/modules/endpoint-tribes/pom.xml b/java/sca/modules/endpoint-tribes/pom.xml
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index 0000000000..c52893ddf5
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+++ b/java/sca/modules/endpoint-tribes/pom.xml
@@ -0,0 +1,46 @@
+<?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>

+        <relativePath>../pom.xml</relativePath>

+    </parent>

+    <artifactId>tuscany-endpoint-tribes</artifactId>

+    <name>Apache Tuscany SCA Tomcat Tribes Based EndPoint Registry</name>

+

+    <dependencies>

+        <dependency>

+            <groupId>org.apache.tomcat</groupId>

+            <artifactId>tribes</artifactId>

+            <version>6.0.18</version>

+            <scope>compile</scope>

+        </dependency>

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-core-spi</artifactId>

+            <version>2.0-SNAPSHOT</version>

+            <scope>compile</scope>

+        </dependency>

+    </dependencies>

+

+</project>

diff --git a/java/sca/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java b/java/sca/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java
new file mode 100644
index 0000000000..81ddfe8b70
--- /dev/null
+++ b/java/sca/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java
@@ -0,0 +1,211 @@
+/*

+ * 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.endpoint.tribes;

+

+import java.net.InetAddress;

+import java.util.ArrayList;

+import java.util.List;

+import java.util.Map;

+import java.util.UUID;

+import java.util.concurrent.CopyOnWriteArrayList;

+import java.util.logging.Logger;

+

+import org.apache.catalina.tribes.Channel;

+import org.apache.catalina.tribes.ChannelException;

+import org.apache.catalina.tribes.group.GroupChannel;

+import org.apache.catalina.tribes.membership.McastService;

+import org.apache.catalina.tribes.tipis.AbstractReplicatedMap;

+import org.apache.catalina.tribes.tipis.ReplicatedMap;

+import org.apache.tuscany.sca.assembly.Endpoint2;

+import org.apache.tuscany.sca.assembly.EndpointReference2;

+import org.apache.tuscany.sca.runtime.EndpointListener;

+import org.apache.tuscany.sca.runtime.EndpointRegistry;

+

+public class ReplicatedEndpointRegistry implements EndpointRegistry {

+    private final static Logger logger = Logger.getLogger(ReplicatedEndpointRegistry.class.getName());

+    private static final String MULTICAST_ADDRESS = "228.0.0.100";

+    private static final int MULTICAST_PORT = 50000;

+    private String domainURI;

+

+    private List<EndpointReference2> endpointreferences = new CopyOnWriteArrayList<EndpointReference2>();

+    private List<EndpointListener> listeners = new CopyOnWriteArrayList<EndpointListener>();

+

+    private ReplicatedMap map;

+

+    private static final Channel createChannel(String address, int port, String bindAddress) {

+

+        //create a channel

+        GroupChannel channel = new GroupChannel();

+        McastService mcastService = (McastService)channel.getMembershipService();

+        mcastService.setPort(port);

+        mcastService.setAddress(address);

+

+        // REVIEW: In my case, there are multiple IP addresses

+        // One for the WIFI and the other one for VPN. For some reason the VPN one doesn't support

+        // Multicast

+        if (bindAddress != null) {

+            mcastService.setBind(bindAddress);

+        }

+

+        try {

+            channel.start(Channel.DEFAULT);

+        } catch (ChannelException e) {

+            throw new IllegalStateException(e);

+        }

+        return channel;

+    }

+

+    public ReplicatedEndpointRegistry(String domainURI) {

+        this.domainURI = domainURI;

+        map =

+            new ReplicatedMap(null, createChannel(MULTICAST_ADDRESS, MULTICAST_PORT, null), 50, domainURI,

+                              new ClassLoader[] {ReplicatedEndpointRegistry.class.getClassLoader()});

+    }

+

+    public void addEndpoint(Endpoint2 endpoint) {

+        map.put(getURI(endpoint), endpoint);

+        for (EndpointListener listener : listeners) {

+            listener.endpointAdded(endpoint);

+        }

+        logger.info("EndpointRegistry: Add endpoint - " + endpoint);

+    }

+

+    public void addEndpointReference(EndpointReference2 endpointReference) {

+        endpointreferences.add(endpointReference);

+        logger.info("EndpointRegistry: Add endpoint reference - " + endpointReference);

+    }

+

+    public void addListener(EndpointListener listener) {

+        listeners.add(listener);

+    }

+

+    public List<Endpoint2> findEndpoint(EndpointReference2 endpointReference) {

+        List<Endpoint2> foundEndpoints = new ArrayList<Endpoint2>();

+

+        logger.info("EndpointRegistry: Find endpoint for reference - " + endpointReference);

+

+        if (endpointReference.getReference() != null) {

+            Endpoint2 targetEndpoint = endpointReference.getTargetEndpoint();

+            for (Object v : map.values()) {

+                Endpoint2 endpoint = (Endpoint2)v;

+                // TODO: implement more complete matching

+                if (endpoint.getComponentName().equals(targetEndpoint.getComponentName())) {

+                    if ((targetEndpoint.getServiceName() != null) && (endpoint.getServiceName().equals(targetEndpoint

+                        .getServiceName()))) {

+                        foundEndpoints.add(endpoint);

+                        logger.info("EndpointRegistry: Found endpoint with matching service  - " + endpoint);

+                    } else if (targetEndpoint.getServiceName() == null) {

+                        foundEndpoints.add(endpoint);

+                        logger.info("EndpointRegistry: Found endpoint with matching component  - " + endpoint);

+                    }

+                    // else the service name doesn't match

+                }

+            }

+        }

+        return foundEndpoints;

+    }

+

+    public List<EndpointReference2> findEndpointReference(Endpoint2 endpoint) {

+        return endpointreferences;

+    }

+

+    public Endpoint2 getEndpoint(String uri) {

+        return (Endpoint2)map.get(uri);

+    }

+

+    public List<EndpointReference2> getEndpointRefereneces() {

+        return endpointreferences;

+    }

+

+    public List<Endpoint2> getEndpoints() {

+        return new ArrayList<Endpoint2>(map.values());

+    }

+

+    public List<EndpointListener> getListeners() {

+        return listeners;

+    }

+

+    private String getURI(Endpoint2 ep) {

+        String bindingName = ep.getBinding().getName();

+        if (bindingName == null) {

+            bindingName = ep.getService().getName();

+        }

+        String epURI = ep.getComponent().getURI() + "#" + ep.getService().getName() + "/" + bindingName;

+        return epURI;

+    }

+

+    public void removeEndpoint(Endpoint2 endpoint) {

+        map.remove(getURI(endpoint));

+        for (EndpointListener listener : listeners) {

+            listener.endpointRemoved(endpoint);

+        }

+        logger.info("EndpointRegistry: Remove endpoint - " + endpoint);

+    }

+

+    public void removeEndpointReference(EndpointReference2 endpointReference) {

+        endpointreferences.remove(endpointReference);

+        logger.info("EndpointRegistry: Remove endpoint reference - " + endpointReference);

+    }

+

+    public void removeListener(EndpointListener listener) {

+        listeners.remove(listener);

+    }

+

+    public void updateEndpoint(String uri, Endpoint2 endpoint) {

+        Endpoint2 oldEndpoint = getEndpoint(uri);

+        if (oldEndpoint == null) {

+            throw new IllegalArgumentException("Endpoint is not found: " + uri);

+        }

+        map.put(getURI(endpoint), endpoint);

+        for (EndpointListener listener : listeners) {

+            listener.endpointUpdated(oldEndpoint, endpoint);

+        }

+    }

+

+    public static void main(String[] args) throws Exception {

+        //create a channel

+        GroupChannel channel = new GroupChannel();

+        McastService mcastService = (McastService)channel.getMembershipService();

+        mcastService.setPort(MULTICAST_PORT);

+        mcastService.setAddress(MULTICAST_ADDRESS);

+

+        InetAddress localhost = InetAddress.getLocalHost();

+

+        // REVIEW: In my case, there are multiple IP addresses

+        // One for the WIFI and the other one for VPN. For some reason the VPN one doesn't support

+        // Multicast

+        mcastService.setBind("192.168.1.100");

+        channel.start(Channel.DEFAULT);

+        ReplicatedMap map = new ReplicatedMap(null, channel, 50, "01", null);

+        map.put(UUID.randomUUID().toString(), localhost.getHostAddress());

+        for (int i = 0; i < 5; i++) {

+            Thread.sleep(2000);

+            System.out.println(localhost + ": " + map.keySet());

+        }

+        for(Object e: map.entrySetFull()) {

+            Map.Entry en = (Map.Entry) e;

+            AbstractReplicatedMap.MapEntry entry = (AbstractReplicatedMap.MapEntry) en.getValue();

+            entry.isPrimary();

+        }

+        map.breakdown();

+        channel.stop(Channel.DEFAULT);

+    }

+

+}

diff --git a/java/sca/modules/endpoint-tribes/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointRegistry b/java/sca/modules/endpoint-tribes/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointRegistry
new file mode 100644
index 0000000000..1d0e5ffe6d
--- /dev/null
+++ b/java/sca/modules/endpoint-tribes/src/main/resources/META-INF/services/org.apache.tuscany.sca.runtime.EndpointRegistry
@@ -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.endpoint.tribes.ReplicatedEndpointRegistry
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