diff options
Diffstat (limited to 'tags/java/sca/2.0-M3-RC3a/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java')
| -rw-r--r-- | tags/java/sca/2.0-M3-RC3a/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M3-RC3a/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java b/tags/java/sca/2.0-M3-RC3a/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java new file mode 100644 index 0000000000..3d6ba89a74 --- /dev/null +++ b/tags/java/sca/2.0-M3-RC3a/modules/endpoint-tribes/src/main/java/org/apache/tuscany/sca/endpoint/tribes/ReplicatedEndpointRegistry.java @@ -0,0 +1,307 @@ +/*
+ * 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.catalina.tribes.tipis.AbstractReplicatedMap.MapEntry;
+import org.apache.tuscany.sca.assembly.Endpoint;
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.runtime.EndpointListener;
+import org.apache.tuscany.sca.runtime.EndpointRegistry;
+
+/**
+ * A replicated EndpointRegistry based on Apache Tomcat Tribes
+ */
+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 int port = MULTICAST_PORT;
+ private String address = MULTICAST_ADDRESS;
+ private String bind = null;
+ private int timeout = 50;
+
+ private final static String DEFAULT_DOMAIN_URI = "http://tuscany.apache.org/sca/1.1/domains/default";
+ private String domainURI = DEFAULT_DOMAIN_URI;
+ private List<EndpointReference> endpointreferences = new CopyOnWriteArrayList<EndpointReference>();
+ private List<EndpointListener> listeners = new CopyOnWriteArrayList<EndpointListener>();
+
+ private ExtensionPointRegistry registry;
+ 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
+ /*
+ try {
+ Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
+ while (nis.hasMoreElements()) {
+ NetworkInterface ni = nis.nextElement();
+ if (ni.isLoopback() || !ni.isUp() || !ni.supportsMulticast()) {
+ continue;
+ }
+ Enumeration<InetAddress> ips = ni.getInetAddresses();
+ while (ips.hasMoreElements()) {
+ InetAddress addr = ips.nextElement();
+ System.out.println(addr.getHostAddress());
+ }
+ }
+ } catch (SocketException e) {
+ e.printStackTrace();
+ }
+ */
+ if (bindAddress != null) {
+ mcastService.setBind(bindAddress);
+ }
+
+ // mcastService.setBind("192.168.1.100");
+ return channel;
+ }
+
+ public ReplicatedEndpointRegistry(ExtensionPointRegistry registry, Map<String, String> attributes) {
+ this.registry = registry;
+ String portStr = attributes.get("port");
+ if (portStr != null) {
+ port = Integer.parseInt(portStr);
+ }
+ String address = attributes.get("address");
+ if (address == null) {
+ address = MULTICAST_ADDRESS;
+ }
+ bind = attributes.get("bind");
+ String timeoutStr = attributes.get("timeout");
+ if (timeoutStr != null) {
+ timeout = Integer.parseInt(timeoutStr);
+ }
+ start();
+ }
+
+ public ReplicatedEndpointRegistry(String domainURI) {
+ this.domainURI = domainURI;
+ start();
+ }
+
+ public void start() {
+ map =
+ new ReplicatedMap(null, createChannel(address, port, bind), timeout, this.domainURI,
+ new ClassLoader[] {ReplicatedEndpointRegistry.class.getClassLoader()});
+ try {
+ map.getChannel().start(Channel.DEFAULT);
+ } catch (ChannelException e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ public void stop() {
+ Channel channel = map.getChannel();
+ map.breakdown();
+ try {
+ channel.stop(Channel.DEFAULT);
+ } catch (ChannelException e) {
+ throw new IllegalStateException(e);
+ }
+ }
+
+ public void addEndpoint(Endpoint endpoint) {
+ map.put(endpoint.getURI(), endpoint);
+ for (EndpointListener listener : listeners) {
+ listener.endpointAdded(endpoint);
+ }
+ logger.info("EndpointRegistry: Add endpoint - " + endpoint);
+ }
+
+ public void addEndpointReference(EndpointReference endpointReference) {
+ endpointreferences.add(endpointReference);
+ logger.info("EndpointRegistry: Add endpoint reference - " + endpointReference);
+ }
+
+ public void addListener(EndpointListener listener) {
+ listeners.add(listener);
+ }
+
+ /**
+ * Parse the component/service/binding URI into an array of parts (componentURI, serviceName, bindingName)
+ * @param uri
+ * @return
+ */
+ private String[] parse(String uri) {
+ String[] names = new String[3];
+ int index = uri.lastIndexOf('#');
+ if (index == -1) {
+ names[0] = uri;
+ } else {
+ names[0] = uri.substring(0, index);
+ String str = uri.substring(index + 1);
+ if (str.startsWith("service-binding(") && str.endsWith(")")) {
+ str = str.substring("service-binding(".length(), str.length() - 1);
+ String[] parts = str.split("/");
+ if (parts.length != 2) {
+ throw new IllegalArgumentException("Invalid service-binding URI: " + uri);
+ }
+ names[1] = parts[0];
+ names[2] = parts[1];
+ } else if (str.startsWith("service(") && str.endsWith(")")) {
+ str = str.substring("service(".length(), str.length() - 1);
+ names[1] = str;
+ } else {
+ throw new IllegalArgumentException("Invalid component/service/binding URI: " + uri);
+ }
+ }
+ return names;
+ }
+
+ private boolean matches(String target, String uri) {
+ String[] parts1 = parse(target);
+ String[] parts2 = parse(uri);
+ for (int i = 0; i < parts1.length; i++) {
+ if (parts1[i] == null || parts1[i].equals(parts2[i])) {
+ continue;
+ } else {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ public List<Endpoint> findEndpoint(EndpointReference endpointReference) {
+ List<Endpoint> foundEndpoints = new ArrayList<Endpoint>();
+
+ logger.info("EndpointRegistry: Find endpoint for reference - " + endpointReference);
+
+ if (endpointReference.getReference() != null) {
+ Endpoint targetEndpoint = endpointReference.getTargetEndpoint();
+ for (Object v : map.values()) {
+ Endpoint endpoint = (Endpoint)v;
+ // TODO: implement more complete matching
+ if (matches(targetEndpoint.getURI(), endpoint.getURI())) {
+ MapEntry entry = map.getInternal(endpoint.getURI());
+ if (!entry.isPrimary()) {
+ endpoint.setExtensionPointRegistry(registry);
+ }
+ foundEndpoints.add(endpoint);
+ logger.info("EndpointRegistry: Found endpoint with matching service - " + endpoint);
+ }
+ // else the service name doesn't match
+ }
+ }
+ return foundEndpoints;
+ }
+
+ public List<EndpointReference> findEndpointReference(Endpoint endpoint) {
+ return endpointreferences;
+ }
+
+ public Endpoint getEndpoint(String uri) {
+ return (Endpoint)map.get(uri);
+ }
+
+ public List<EndpointReference> getEndpointRefereneces() {
+ return endpointreferences;
+ }
+
+ public List<Endpoint> getEndpoints() {
+ return new ArrayList<Endpoint>(map.values());
+ }
+
+ public List<EndpointListener> getListeners() {
+ return listeners;
+ }
+
+ public void removeEndpoint(Endpoint endpoint) {
+ map.remove(endpoint.getURI());
+ for (EndpointListener listener : listeners) {
+ listener.endpointRemoved(endpoint);
+ }
+ logger.info("EndpointRegistry: Remove endpoint - " + endpoint);
+ }
+
+ public void removeEndpointReference(EndpointReference endpointReference) {
+ endpointreferences.remove(endpointReference);
+ logger.info("EndpointRegistry: Remove endpoint reference - " + endpointReference);
+ }
+
+ public void removeListener(EndpointListener listener) {
+ listeners.remove(listener);
+ }
+
+ public void updateEndpoint(String uri, Endpoint endpoint) {
+ Endpoint oldEndpoint = getEndpoint(uri);
+ if (oldEndpoint == null) {
+ throw new IllegalArgumentException("Endpoint is not found: " + uri);
+ }
+ map.put(endpoint.getURI(), 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();
+ System.out.println(entry);
+ }
+ map.breakdown();
+ channel.stop(Channel.DEFAULT);
+ }
+
+}
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