diff options
Diffstat (limited to 'sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp')
12 files changed, 802 insertions, 0 deletions
diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/README b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/README new file mode 100644 index 0000000000..1ec7d6b807 --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/README @@ -0,0 +1,93 @@ +Tuscany - Learning More - Binding Websocket - PubSub Webapp +----------------------------------------------------------------- + +This sample demonstrates how Tuscany can expose services via websockets as well +as how to interact with them using Tuscany's javascript API. It also demonstrates +how to push multiple responses from the server to the client for a single request +using SCA callbacks. + +This project contains a component that registers browser clients' interest in a +certain event type. When an event of that type comes in, it notifies all registered +clients. The event processor exposes a service via the websocket binding which +enables server push to clients. Note that Tuscany 2.x doesn't have any conversational +support so this has to be handled at application level by passing ids back and forth +between the client and the server. + +By adding <tuscany:binding.websocket port="8090"/> to a service definition, the +Tuscany runtime will start a websocket server listening for requests coming +in for the exposed service at the specified port. If no port is specified, the +runtime will use port 9000 as a default. + +The websocket binding uses embedded Jetty instances as websocket servers. At the +moment, Jetty 8.0.0-M3 is used which has support for the 00, 01, 06 and 07 +versions of the websocket protocol drafts. + +IN ORDER TO RUN THIS SAMPLE SUCCESSFULLY PLEASE CHECK IF YOUR BROWSER SUPPORTS +THE ABOVE WEBSOCKET PROTOCOL VERSIONS AND THAT THE WEBSOCKET SUPPORT IS ENABLED. + +In order to enable callbacks to push multiple responses, you need to declare the +WebsocketBindingCallback in the service definition as follows: + + <interface.java interface="sample.ChatService" + callbackInterface="org.apache.tuscany.sca.binding.websocket.runtime.WebsocketBindingCallback" /> + <tuscany:binding.websocket /> + <callback> + <tuscany:binding.websocket /> + </callback> + +The callback object has methods that facilitate sending messages back to the +calling client. It can be injected in the service implementation using the @Callback +annotation. However, the service implementation for this sample has the COMPOSITE +scope so the callback reference has to be obtained from the ComponentContext. + +One requirement that service methods have to meet to enable multiple response +support is that they have to be annotated with @OneWay to enable non-blocking +support. Without it, methods are treated synchronously sending a single response +which is the object returned by the method call. + +The websocket binding also features a javascript API to simulate SCA in the +browser. In order to use it, the following script has to be included in the +client page: + <script type="text/javascript" + src="org.apache.tuscany.sca.WebsocketComponentContext.js"> + </script> + +This will inject proxies for all services defined in the composite that are +using binding.websocket. All invocation and connection management is handled +under the hood so in order to invoke a websocket service, the following should +be called: + Tuscany.WebsocketComponentContext.<component name>.<service name>.<operation name>(<parameters>); + +Given the asynchornous nature of websockets, a function should be defined in +order to handle responses received for a certain service operation. This should +be done as follows: + Tuscany.WebsocketComponentContext.<component name>.<service name>.<operation name>.responseHandler = function(response) { + // handle response + }; + +Note that the data exchange is automatically handled by the binding, so parameters +will be mapped to the data types defined in the method definition. Also, the response +will have the same data type as the server side object used to wrap the response. +Objects are passed over the wire in JSON format. + +Another detail worth mentioning is that the binding will use a single persistent +websocket connection to handle communication between a browser client and all services +defined using binding.websocket on the same port. Requests and responses will get +multiplexed via the same channel and get routed to the appropriate service +implementation, respectively javascript function. + +In order to run the sample, you can execute "mvn jetty:run" which will start a Jetty +instance automatically or use "mvn package" and deploy the resulting war to the +application server of your choice. + +Next, point your browser at + http://localhost:8080/sample-binding-websocket-chat-webapp/ + +You can now register or unregister for any of a number of events. When an event is fired +on the server side, the browser client will receive a notification which will be displayed +in the page. You can see the persistent websocket connection using the developer tools +provided by your browser. + +The websocket binding is an experimental binding so community feedback is much +appreciated. Feel free to send comments or suggestions on the Apache Tuscany +dev mailing list (dev@tuscany.apache.org).
\ No newline at end of file diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/pom.xml b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/pom.xml new file mode 100644 index 0000000000..8005884b2d --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/pom.xml @@ -0,0 +1,68 @@ +<?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 xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+ <modelVersion>4.0.0</modelVersion>
+ <parent>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-samples</artifactId>
+ <version>2.0-SNAPSHOT</version>
+ <relativePath>../../../pom.xml</relativePath>
+ </parent>
+
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>sample-binding-websocket-pubsub-webapp</artifactId>
+ <packaging>war</packaging>
+ <version>2.0-SNAPSHOT</version>
+ <name>Apache Tuscany SCA Sample binding.websocket PubSub Webapp</name>
+
+ <dependencies>
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-binding-websocket</artifactId>
+ <version>2.0-SNAPSHOT</version>
+ </dependency>
+ <dependency>
+ <groupId>org.apache.tuscany.sca</groupId>
+ <artifactId>tuscany-base-runtime-pom</artifactId>
+ <version>2.0-SNAPSHOT</version>
+ <type>pom</type>
+ <scope>compile</scope>
+ </dependency>
+ <dependency>
+ <groupId>com.google.guava</groupId>
+ <artifactId>guava</artifactId>
+ <version>r09</version>
+ <type>jar</type>
+ <scope>compile</scope>
+ </dependency>
+ </dependencies>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.mortbay.jetty</groupId>
+ <artifactId>maven-jetty-plugin</artifactId>
+ <version>6.1.26</version>
+ </plugin>
+ </plugins>
+ </build>
+
+</project>
+
diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/Event.java b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/Event.java new file mode 100644 index 0000000000..c9d9eb54c4 --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/Event.java @@ -0,0 +1,51 @@ +/* + * 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 sample; + +public class Event { + + private String id; + private String name; + private String data; + + public String getId() { + return id; + } + + public void setId(String id) { + this.id = id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getData() { + return data; + } + + public void setData(String data) { + this.data = data; + } + +} diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessor.java b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessor.java new file mode 100644 index 0000000000..d289b361cf --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessor.java @@ -0,0 +1,104 @@ +/* + * 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 sample; + +import java.util.ArrayList; +import java.util.Date; +import java.util.List; +import java.util.UUID; +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ConcurrentMap; + +import org.apache.tuscany.sca.binding.websocket.runtime.WebsocketBindingCallback; +import org.apache.tuscany.sca.binding.websocket.runtime.WebsocketStatus; +import org.oasisopen.sca.ComponentContext; +import org.oasisopen.sca.annotation.Context; +import org.oasisopen.sca.annotation.Destroy; +import org.oasisopen.sca.annotation.Scope; +import org.oasisopen.sca.annotation.Service; + +import com.google.common.collect.HashMultimap; +import com.google.common.collect.Multimap; +import com.google.common.collect.Multimaps; + +@Service({ EventProcessorConsumerService.class, EventProcessorProducerService.class }) +@Scope("COMPOSITE") +public class EventProcessor implements EventProcessorConsumerService, EventProcessorProducerService { + + @Context + protected ComponentContext componentContext; + + private ConcurrentMap<String, WebsocketBindingCallback> clients = new ConcurrentHashMap<String, WebsocketBindingCallback>(); + private Multimap<String, String> eventListeners = Multimaps.synchronizedMultimap(HashMultimap.<String, String> create()); + + @Override + public void onEvent(String eventName, String eventData) { + List<String> destinations = new ArrayList<String>(); + synchronized (eventListeners) { + destinations.addAll(eventListeners.get(eventName)); + } + Event event = new Event(); + event.setName(eventName); + event.setData(eventData); + for (String registrationId : destinations) { + WebsocketBindingCallback client = clients.get(registrationId); + if (client == null) { + // client has unregistered from this event + synchronized (eventListeners) { + eventListeners.remove(eventName, registrationId); + } + } else { + WebsocketStatus status = client.sendMessage(event); + if (status == WebsocketStatus.CLOSED) { + unregister(registrationId); + } + } + } + } + + @Override + public void register(String eventName) { + String registrationId = UUID.randomUUID().toString(); + WebsocketBindingCallback callback = componentContext.getRequestContext().getCallback(); + clients.put(registrationId, callback); + synchronized (eventListeners) { + eventListeners.put(eventName, registrationId); + } + Event event = new Event(); + event.setId(registrationId); + event.setName(eventName); + event.setData(new Date().toString()); + callback.sendMessage(event); + } + + @Override + public void unregister(String registrationId) { + clients.remove(registrationId); + // unregistration from eventListeners done during onEvent + } + + @Destroy + public void shutdown() { + clients.clear(); + eventListeners.clear(); + clients = null; + eventListeners = null; + } +} diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessorConsumerService.java b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessorConsumerService.java new file mode 100644 index 0000000000..aa9156b088 --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessorConsumerService.java @@ -0,0 +1,37 @@ +/* + * 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 sample; + +import org.apache.tuscany.sca.binding.websocket.runtime.WebsocketBindingCallback; +import org.oasisopen.sca.annotation.Callback; +import org.oasisopen.sca.annotation.OneWay; +import org.oasisopen.sca.annotation.Remotable; + +@Callback(WebsocketBindingCallback.class) +@Remotable +public interface EventProcessorConsumerService { + + @OneWay + void register(String eventName); + + @OneWay + void unregister(String registrationId); + +} diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessorProducerService.java b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessorProducerService.java new file mode 100644 index 0000000000..a9c80cc697 --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/EventProcessorProducerService.java @@ -0,0 +1,28 @@ +/* + * 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 sample; + +import org.oasisopen.sca.annotation.Remotable; + +@Remotable +public interface EventProcessorProducerService { + + void onEvent(String eventName, String eventData); + +} diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/Producer.java b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/Producer.java new file mode 100644 index 0000000000..88a214d843 --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/java/sample/Producer.java @@ -0,0 +1,75 @@ +/* + * 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 sample; + +import java.util.Date; +import java.util.Timer; +import java.util.TimerTask; + +import org.oasisopen.sca.annotation.Constructor; +import org.oasisopen.sca.annotation.Destroy; +import org.oasisopen.sca.annotation.EagerInit; +import org.oasisopen.sca.annotation.Init; +import org.oasisopen.sca.annotation.Property; +import org.oasisopen.sca.annotation.Reference; +import org.oasisopen.sca.annotation.Scope; + +@EagerInit +@Scope("COMPOSITE") +public class Producer { + + @Reference + protected EventProcessorProducerService eventProcessor; + + private String eventName; + private long frequency; + + private Timer timer = new Timer(); + private Object lock = new Object(); + + @Constructor + public Producer(@Property(name = "eventName") String eventName, @Property(name = "frequency") long frequency) { + System.out.println("Producer: In Constructor with eventName=" + eventName + " and frequency=" + frequency); + this.eventName = eventName; + this.frequency = frequency; + } + + @Init + public void start() { + System.out.println("Producer: In Init..."); + timer.schedule(new TimerTask() { + + @Override + public void run() { + synchronized (lock) { + eventProcessor.onEvent(Producer.this.eventName, "Event @ " + new Date()); + } + } + }, 0L, this.frequency); + } + + @Destroy + public void stop() { + synchronized (lock) { + timer.cancel(); + } + timer = null; + } + +} diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/META-INF/MANIFEST.MF b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/META-INF/MANIFEST.MF new file mode 100644 index 0000000000..58630c02ef --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/META-INF/MANIFEST.MF @@ -0,0 +1,2 @@ +Manifest-Version: 1.0
+
diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/WEB-INF/web.composite b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/WEB-INF/web.composite new file mode 100644 index 0000000000..743e2b418e --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/WEB-INF/web.composite @@ -0,0 +1,60 @@ +<?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. +--> +<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912" + xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.1" + targetNamespace="http://samples" name="Event"> + + <component name="EventProcessorComponent"> + <implementation.java class="sample.EventProcessor" /> + <service name="EventProcessorConsumerService"> + <interface.java interface="sample.EventProcessorConsumerService" + callbackInterface="org.apache.tuscany.sca.binding.websocket.runtime.WebsocketBindingCallback" /> + <tuscany:binding.websocket /> + <callback> + <tuscany:binding.websocket /> + </callback> + </service> + <service name="EventProcessorProducerService"> + <interface.java interface="sample.EventProcessorProducerService" /> + </service> + </component> + + <component name="SLOWProducerComponent"> + <implementation.java class="sample.Producer" /> + <reference name="eventProcessor" target="EventProcessorComponent" /> + <property name="eventName">SLOW</property> + <property name="frequency">6000</property> + </component> + + <component name="MODERATEProducerComponent"> + <implementation.java class="sample.Producer" /> + <reference name="eventProcessor" target="EventProcessorComponent" /> + <property name="eventName">MODERATE</property> + <property name="frequency">3000</property> + </component> + + <component name="FASTProducerComponent"> + <implementation.java class="sample.Producer" /> + <reference name="eventProcessor" target="EventProcessorComponent" /> + <property name="eventName">FAST</property> + <property name="frequency">1000</property> + </component> + +</composite>
\ No newline at end of file diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/WEB-INF/web.xml b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/WEB-INF/web.xml new file mode 100644 index 0000000000..25b06c457a --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/WEB-INF/web.xml @@ -0,0 +1,34 @@ +<?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. +--> +<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:j2ee="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_3.0.xsd" version="3.0"> + <display-name>Apache Tuscany Stock Comet Sample</display-name> + <filter> + <filter-name>tuscany</filter-name> + <filter-class>org.apache.tuscany.sca.host.webapp.TuscanyServletFilter</filter-class> + <async-supported>true</async-supported> + </filter> + <filter-mapping> + <filter-name>tuscany</filter-name> + <url-pattern>/*</url-pattern> + </filter-mapping> + <welcome-file-list> + <welcome-file>index.html</welcome-file> + </welcome-file-list> +</web-app>
\ No newline at end of file diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/index.html b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/index.html new file mode 100644 index 0000000000..8c6fbcba4e --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/index.html @@ -0,0 +1,96 @@ +<!-- + * 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. +--> +<html> +<head> + <title>Apache Tuscany Websocket Sample</title> + <script type="text/javascript" src="jquery/jquery-1.4.2.min.js"></script> + <script type="text/javascript" src="org.apache.tuscany.sca.WebsocketComponentContext.js"></script> + <script type="text/javascript"> + var registrationIds = {}; + + Tuscany.WebsocketComponentContext.EventProcessorComponent.EventProcessorConsumerService.register.responseHandler = function(event) { + var text = ''; + if (event.id != null) { + // registration notification + registrationIds[event.name] = event.id; + text = "Registered to " + event.name + " with id " + event.id + " at " + event.data; + } else { + // event notification + text = event.name + ": " + event.data; + } + var textarea = $('#textarea'); + $(textarea).val($(textarea).val() + text + "\n"); + $(textarea).scrollTop($(textarea)[0].scrollHeight); + } + + $(document).ready(function() + { + $('#registerEventButton').click(function(event) { + var eventName = $('#registerEventName').val(); + if (registrationIds[eventName] != null) { + alert("Already registered for " + eventName + " events"); + } else { + Tuscany.WebsocketComponentContext.EventProcessorComponent.EventProcessorConsumerService.register(eventName); + } + }); + + $('#unregisterEventButton').click(function(event) { + var eventName = $('#unregisterEventName').val(); + if (registrationIds[eventName] != null) { + Tuscany.WebsocketComponentContext.EventProcessorComponent.EventProcessorConsumerService.unregister(registrationIds[eventName]); + registrationIds[eventName] = null; + } else { + alert("Not registered for " + eventName + " events"); + } + }); + }); + </script> +</head> +<body> + <h2>Apache Tuscany Websocket Sample</h2> + <h3>PubSub for FAST, MODERATE and SLOW events</h3> + <p/> + <table> + <tr> + <td>Event name</td> + <td> + <select id="registerEventName"> + <option value="FAST">FAST</option> + <option value="MODERATE">MODERATE</option> + <option value="SLOW">SLOW</option> + </select> + </td> + <td><input type="button" id='registerEventButton' value='Register' /></td> + </tr> + <tr> + <td>Event name</td> + <td> + <select id="unregisterEventName"> + <option value="FAST">FAST</option> + <option value="MODERATE">MODERATE</option> + <option value="SLOW">SLOW</option> + </select> + </td> + <td><input type="button" id='unregisterEventButton' value='Unregister' /></td> + </tr> + </table> + <h3>Server notifications</h3> + <textarea id="textarea" rows="15" cols="80" readonly></textarea> +</body> +</html> diff --git a/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/jquery/jquery-1.4.2.min.js b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/jquery/jquery-1.4.2.min.js new file mode 100644 index 0000000000..48a88b8f48 --- /dev/null +++ b/sca-java-2.x/trunk/samples/learning-more/binding-websocket/pubsub-webapp/src/main/webapp/jquery/jquery-1.4.2.min.js @@ -0,0 +1,154 @@ +/*! + * jQuery JavaScript Library v1.4.2 + * http://jquery.com/ + * + * Copyright 2010, John Resig + * Dual licensed under the MIT or GPL Version 2 licenses. + * http://jquery.org/license + * + * Includes Sizzle.js + * http://sizzlejs.com/ + * Copyright 2010, The Dojo Foundation + * Released under the MIT, BSD, and GPL Licenses. + * + * Date: Sat Feb 13 22:33:48 2010 -0500 + */ +(function(A,w){function ma(){if(!c.isReady){try{s.documentElement.doScroll("left")}catch(a){setTimeout(ma,1);return}c.ready()}}function Qa(a,b){b.src?c.ajax({url:b.src,async:false,dataType:"script"}):c.globalEval(b.text||b.textContent||b.innerHTML||"");b.parentNode&&b.parentNode.removeChild(b)}function X(a,b,d,f,e,j){var i=a.length;if(typeof b==="object"){for(var o in b)X(a,o,b[o],f,e,d);return a}if(d!==w){f=!j&&f&&c.isFunction(d);for(o=0;o<i;o++)e(a[o],b,f?d.call(a[o],o,e(a[o],b)):d,j);return a}return i? 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