Import work in progress code for comet binding runtime

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1124666 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
fmoga 2011-05-19 10:24:06 +00:00
parent c3565b5e7c
commit b3c3c7de51
25 changed files with 2166 additions and 0 deletions

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===============================================================================================================
Apache Tuscany SCA for Java Subcomponents
=========================================:
The Tuscany SCA for Java release includes a number of subcomponents with
separate copyright notices and license terms. Your use of the source
code for the these subcomponents is subject to the terms and
conditions of the following licenses.
=================================================================================================================
This module includes files under the following MIT license:
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Manifest-Version: 1.0
SCA-Version: 1.1
Bundle-Name: Apache Tuscany SCA Comet Binding Model
Bundle-Vendor: The Apache Software Foundation
Bundle-Version: 2.0.0
Bundle-ManifestVersion: 2
Bundle-License: http://www.apache.org/licenses/LICENSE-2.0.txt
Bundle-Description: Apache Tuscany SCA Comet Binding Model
Import-Package: javax.servlet;version="2.5.0",
javax.servlet.http;version="2.5.0",
org.apache.commons.codec,
org.apache.commons.codec.net,
org.apache.http,
org.apache.http.client,
org.apache.http.client.methods,
org.apache.http.client.utils,
org.apache.http.conn,
org.apache.http.impl.client,
org.apache.tuscany.sca.assembly;version="2.0.0",
org.apache.tuscany.sca.binding.comet;version="2.0.0",
org.apache.tuscany.sca.core;version="2.0.0",
org.apache.tuscany.sca.host.http;version="2.0.0",
org.apache.tuscany.sca.interfacedef;version="2.0.0",
org.apache.tuscany.sca.invocation;version="2.0.0",
org.apache.tuscany.sca.provider;version="2.0.0",
org.apache.tuscany.sca.runtime;version="2.0.0",
org.codehaus.jackson,
org.codehaus.jackson.map
Bundle-SymbolicName: org.apache.tuscany.sca.binding.comet.runtime
Bundle-DocURL: http://www.apache.org/
Bundle-RequiredExecutionEnvironment: J2SE-1.5,JavaSE-1.6

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${pom.name}
Copyright (c) 2005 - 2011 The Apache Software Foundation
This product includes software developed by
The Apache Software Foundation (http://www.apache.org/).

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<?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>
<groupId>org.apache.tuscany.sca</groupId>
<artifactId>tuscany-binding-comet-runtime</artifactId>
<name>Apache Tuscany SCA Comet Binding Runtime</name>
<packaging>jar</packaging>
<dependencies>
<dependency>
<groupId>org.apache.tuscany.sca</groupId>
<artifactId>tuscany-base-runtime-pom</artifactId>
<type>pom</type>
<version>2.0-SNAPSHOT</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.atmosphere</groupId>
<artifactId>atmosphere-commons</artifactId>
<version>0.6.1</version>
</dependency>
<dependency>
<groupId>org.atmosphere</groupId>
<artifactId>atmosphere-runtime</artifactId>
<version>0.6.1</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.specs</groupId>
<artifactId>geronimo-servlet_3.0_spec</artifactId>
<version>1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty</artifactId>
<version>6.1.26</version>
<scope>test</scope>
</dependency>
</dependencies>
<repositories>
<repository>
<id>gson-googlecode-repository</id>
<url>http://google-gson.googlecode.com/svn/mavenrepo</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
<releases>
<enabled>true</enabled>
</releases>
</repository>
</repositories>
</project>

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Manifest-Version: 1.0
Class-Path:

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package org.apache.tuscany.sca.binding.comet.runtime;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
public class CometAsyncResponseInvoker implements InvokerAsyncResponse {
private RuntimeEndpoint endpoint;
public CometAsyncResponseInvoker(ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint) {
this.endpoint = endpoint;
}
@Override
public void invokeAsyncResponse(Message msg) {
System.out.println("In invokeAsyncResponse!");
}
}

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/*
* 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.binding.comet.runtime;
import org.apache.tuscany.sca.binding.comet.CometBinding;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.host.http.ServletHost;
import org.apache.tuscany.sca.host.http.ServletHostHelper;
import org.apache.tuscany.sca.provider.BindingProviderFactory;
import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
import org.apache.tuscany.sca.provider.ServiceBindingProvider;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
import org.apache.tuscany.sca.runtime.RuntimeEndpointReference;
/**
* Factory for binding providers.
*/
public class CometBindingProviderFactory implements BindingProviderFactory<CometBinding> {
/**
* Underlying servlet host. Injected by constructor.
*/
private final ServletHost servletHost;
/**
* Constructor.
*/
public CometBindingProviderFactory(final ExtensionPointRegistry extensionPoints) {
this.servletHost = ServletHostHelper.getServletHost(extensionPoints);
}
@Override
public Class<CometBinding> getModelType() {
return CometBinding.class;
}
/**
* Creates a provider for a reference that has comet binding specified in
* the scdl.
*/
@Override
public ReferenceBindingProvider createReferenceBindingProvider(final RuntimeEndpointReference endpoint) {
return new CometReferenceBindingProvider(endpoint);
}
/**
* Creates a provider for a service that has comet binding specified in the
* scdl.
*/
@Override
public ServiceBindingProvider createServiceBindingProvider(final RuntimeEndpoint endpoint) {
return new CometServiceBindingProvider(endpoint, this.servletHost);
}
}

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/*
* 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.binding.comet.runtime;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
public class CometComponentContext {
private Map<String, RuntimeEndpoint> endpoints;
private Map<String, Operation> operations;
public CometComponentContext() {
endpoints = new ConcurrentHashMap<String, RuntimeEndpoint>();
operations = new ConcurrentHashMap<String, Operation>();
}
public void addEndpoint(String key, RuntimeEndpoint endpoint) {
endpoints.put(key, endpoint);
}
public void addOperation(String key, Operation operation) {
operations.put(key, operation);
}
public RuntimeEndpoint getEndpoint(String key) {
return endpoints.get(key);
}
public Operation getOperation(String key) {
return operations.get(key);
}
}

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/*
* 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.binding.comet.runtime;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.binding.comet.runtime.handler.CometBindingHandler;
import org.apache.tuscany.sca.core.invocation.impl.MessageImpl;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
public class CometInvoker implements Invoker {
protected Operation operation;
protected EndpointReference endpoint;
public CometInvoker(final Operation operation, final EndpointReference endpoint) {
this.operation = operation;
this.endpoint = endpoint;
}
@Override
public Message invoke(final Message msg) {
String operation = msg.getOperation().getName();
CometMessageContext context = msg.getBindingContext();
CometBindingHandler handler = context.getCometHandler();
Message message = new MessageImpl();
if (operation.equals("sendResponse")) {
String callbackMethod = context.getCallbackMethod();
Object[] body = msg.getBody();
handler.respondToClient(callbackMethod, body[0]);
} else if (operation.equals("isClientConnected")) {
message.setBody(handler.isClientConnected());
}
return message;
}
}

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/*
* 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.binding.comet.runtime;
import org.apache.tuscany.sca.binding.comet.runtime.handler.CometBindingHandler;
public class CometMessageContext {
private CometBindingHandler cometHandler;
private String callbackMethod;
public CometMessageContext(CometBindingHandler cometHandler, String callbackMethod) {
this.cometHandler = cometHandler;
this.callbackMethod = callbackMethod;
}
public CometBindingHandler getCometHandler() {
return cometHandler;
}
public void setCometHandler(CometBindingHandler cometHandler) {
this.cometHandler = cometHandler;
}
public String getCallbackMethod() {
return callbackMethod;
}
public void setCallbackMethod(String callbackMethod) {
this.callbackMethod = callbackMethod;
}
}

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/*
* 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.binding.comet.runtime;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.provider.ReferenceBindingProvider;
/**
* Provider for references that have comet binding specified in the scdl. Not
* used as comet binding references would occur in client browser's Javascript.
*/
public class CometReferenceBindingProvider implements ReferenceBindingProvider {
/**
* Endpoint for which the binding provider is created.
*/
private final EndpointReference endpoint;
public CometReferenceBindingProvider(final EndpointReference endpoint) {
this.endpoint = endpoint;
}
@Override
public Invoker createInvoker(final Operation operation) {
return new CometInvoker(operation, this.endpoint);
}
/**
* No behavior.
*/
@Override
public void start() {
}
/**
* No behavior.
*/
@Override
public void stop() {
}
@Override
public InterfaceContract getBindingInterfaceContract() {
return endpoint.getReference().getInterfaceContract();
}
@Override
public boolean supportsOneWayInvocation() {
return true;
}
}

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/*
* 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.binding.comet.runtime;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.binding.comet.runtime.javascript.JavascriptGenerator;
import org.apache.tuscany.sca.host.http.ServletHost;
import org.apache.tuscany.sca.interfacedef.Interface;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.InvokerAsyncResponse;
import org.apache.tuscany.sca.provider.EndpointAsyncProvider;
import org.apache.tuscany.sca.provider.ServiceBindingProvider;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
/**
* Provider for services having comet binding specified in the scdl.
*/
public class CometServiceBindingProvider implements ServiceBindingProvider, EndpointAsyncProvider {
/**
* Service's endpoint.
*/
private final RuntimeEndpoint endpoint;
/**
* The underlying servlet host.
*/
private final ServletHost servletHost;
/**
* Constructor.
*
* @param endpoint
* the given endpoint
* @param servletHost
* the given servlet host
*/
public CometServiceBindingProvider(final RuntimeEndpoint endpoint, final ServletHost servletHost) {
this.endpoint = endpoint;
this.servletHost = servletHost;
}
/**
* This method is used to start the provider.
*/
@Override
public void start() {
ServletFactory.registerServlet(this.servletHost);
final ComponentService service = this.endpoint.getService();
final Interface serviceInterface = service.getInterfaceContract().getInterface();
JavascriptGenerator.generateServiceProxy(service);
for (final Operation operation : serviceInterface.getOperations()) {
JavascriptGenerator.generateMethodProxy(service, operation);
ServletFactory.registerOperation(this.endpoint, operation);
}
}
/**
* This method is used to stop the provider.
*/
@Override
public void stop() {
ServletFactory.unregisterServlet(this.servletHost);
}
@Override
public InterfaceContract getBindingInterfaceContract() {
return endpoint.getService().getInterfaceContract();
}
@Override
public boolean supportsOneWayInvocation() {
return true;
}
@Override
public void configure() {
}
@Override
public boolean supportsNativeAsync() {
return true;
}
@Override
public InvokerAsyncResponse createAsyncResponseInvoker() {
return new CometAsyncResponseInvoker(null, endpoint);
}
}

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/*
* 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.binding.comet.runtime;
import org.apache.tuscany.sca.host.http.ServletHost;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
import org.atmosphere.cpr.AtmosphereServlet;
/**
* This class is used to create two servlets: one exposing all the comet
* services, the other one exposing the javascript toolkit. Exposing all comet
* services through a single servlet is needed as the browsers are undergone by
* the two http connection limit so all comet services should send their
* responses via the same http connection to the same client. Dispatching to the
* corresponding endpoint and operation is done internally using Jersey RESTful
* Web Services integration with the AtmosphereServlet. The Javascript toolkit
* servlet is unique as it is not tied to any of the services - it offers a
* global API.
*/
public final class ServletFactory {
/**
* Init-param key for the AtmosphereServlet defining where to look for
* Jersey classes.
*/
private static final String PACKAGE_KEY = "com.sun.jersey.config.property.packages";
/**
* Package of the class handling dispatching to endpoints.
*/
private static final String PACKAGE_VALUE = "org.apache.tuscany.sca.binding.comet.runtime.handler";
/**
* Package of the class handling Javascript toolkit retrieval.
*/
private static final String JS_PACKAGE_VALUE = "org.apache.tuscany.sca.binding.comet.runtime.javascript";
/**
* Key in the ServletContext where the comet component context is stored.
*/
public static final String COMET_COMPONENT_CONTEXT_KEY = "org.apache.tuscany.sca.binding.comet.operations";
/**
* Path where services will be exposed.
*/
public static final String PATH = "/tuscany-comet/*";
/**
* Path where Javascript toolkit will be exposed.
*/
public static final String JS_PATH = "/org.apache.tuscany.sca.cometComponentContext.js/*";
/**
* The servlet that is exposing the comet services.
*/
private static AtmosphereServlet cometServlet = null;
/**
* The servlet that is exposing the Javascript toolkit.
*/
private static AtmosphereServlet javascriptServlet = null;
/**
* Private constructor for the singleton class.
*/
private ServletFactory() {
}
/**
* Method called by CometServiceBindingProvider for each endpoint in order
* to create the two singleton servlets.
*
* @param servletHost
* the underlying servlet host
*/
public static synchronized void registerServlet(
final ServletHost servletHost) {
registerCometServlet(servletHost);
registerJavascriptServlet(servletHost);
}
private static void registerCometServlet(ServletHost servletHost) {
if (ServletFactory.cometServlet == null) {
ServletFactory.cometServlet = new AtmosphereServlet();
ServletFactory.cometServlet.addInitParameter(
ServletFactory.PACKAGE_KEY, ServletFactory.PACKAGE_VALUE);
servletHost.addServletMapping(ServletFactory.PATH,
ServletFactory.cometServlet);
final CometComponentContext context = new CometComponentContext();
ServletFactory.cometServlet.getServletContext().setAttribute(
ServletFactory.COMET_COMPONENT_CONTEXT_KEY, context);
}
}
private static void registerJavascriptServlet(ServletHost servletHost) {
if (ServletFactory.javascriptServlet == null) {
ServletFactory.javascriptServlet = new AtmosphereServlet();
ServletFactory.javascriptServlet
.addInitParameter(ServletFactory.PACKAGE_KEY,
ServletFactory.JS_PACKAGE_VALUE);
servletHost.addServletMapping(ServletFactory.JS_PATH,
ServletFactory.javascriptServlet);
}
}
/**
* Method called by CometServiceBindingProvider for each endpoint operation
* in order to store all the operations the servlet will serve.
*
* @param endpoint
* the endpoint
* @param operation
* the operation
*/
public static void registerOperation(final RuntimeEndpoint endpoint,
final Operation operation) {
final String url = "/" + endpoint.getService().getName() + "/"
+ operation.getName();
CometComponentContext context = (CometComponentContext) cometServlet
.getServletContext().getAttribute(COMET_COMPONENT_CONTEXT_KEY);
context.addEndpoint(url, endpoint);
context.addOperation(url, operation);
}
/**
* Method called by CometServiceBindingProvider for each endpoint operation
* in order to remove the two servlets.
*
* @param servletHost
* the underlying servlet host
*/
public static void unregisterServlet(final ServletHost servletHost) {
synchronized (servletHost) {
servletHost.removeServletMapping(ServletFactory.PATH);
servletHost.removeServletMapping(ServletFactory.JS_PATH);
}
}
}

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/*
* 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.binding.comet.runtime.callback;
import org.oasisopen.sca.annotation.Remotable;
@Remotable
public interface CometCallback {
void sendResponse(Object response);
boolean isClientConnected();
}

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/*
* 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.binding.comet.runtime.handler;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.FormParam;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import org.apache.tuscany.sca.assembly.EndpointReference;
import org.apache.tuscany.sca.binding.comet.runtime.CometComponentContext;
import org.apache.tuscany.sca.binding.comet.runtime.CometMessageContext;
import org.apache.tuscany.sca.binding.comet.runtime.ServletFactory;
import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointImpl;
import org.apache.tuscany.sca.core.assembly.impl.RuntimeEndpointReferenceImpl;
import org.apache.tuscany.sca.core.invocation.impl.MessageImpl;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
import org.atmosphere.annotation.Broadcast;
import org.atmosphere.cpr.Broadcaster;
import org.atmosphere.cpr.DefaultBroadcaster;
import org.atmosphere.jersey.SuspendResponse;
import com.google.gson.Gson;
import com.sun.jersey.spi.container.servlet.PerSession;
/**
* Class serving calls coming for comet services and operations.
*/
@Path("/")
@Produces("text/html;charset=ISO-8859-1")
@PerSession
public class CometBindingHandler {
/**
* The object used to suspend the response and send async responses back to
* client.
*/
private Broadcaster broadcaster;
/**
* JSON converter.
*/
private Gson gson = new Gson();
/**
* The underlying servlet context.
*/
@Context
private ServletContext sc;
@Context
private HttpServletRequest request;
private CometComponentContext context;
/**
* Method called at comet connect time. This suspends the response and keeps
* the connection opened.
*
* @return the suspended response
*/
@GET
public SuspendResponse<String> connect() {
System.out.println("-- connect -- Session Id: " + request.getSession().getId());
if (broadcaster == null) {
broadcaster = new DefaultBroadcaster();
context = (CometComponentContext) sc.getAttribute(ServletFactory.COMET_COMPONENT_CONTEXT_KEY);
}
return new SuspendResponse.SuspendResponseBuilder<String>().broadcaster(this.broadcaster).outputComments(true)
.build();
}
/**
* Method called on service calls.
*
* @param service
* service called
* @param method
* operation called
* @param callbackMethod
* the callback method from Javascript
* @param jsonData
* arguments for the method sent as JSON array
* @return object used by the Broadcaster to send response through the
* persisted connection
* @throws InvocationTargetException
* if problems occur at service invocation
*/
@POST
@Path("/{service}/{method}")
@Broadcast
public void handleRequest(@PathParam("service") final String service, @PathParam("method") final String method,
@FormParam("callback") final String callbackMethod, @FormParam("params") final String jsonData)
throws InvocationTargetException {
System.out.println("-- handleRequest -- Session Id: " + request.getSession().getId());
final String url = "/" + service + "/" + method;
final RuntimeEndpoint wire = context.getEndpoint(url);
final Operation operation = context.getOperation(url);
final Object[] args = decodeJsonDataForOperation(jsonData, operation);
Message msg = createMessageWithMockedCometReference(args, callbackMethod);
Object response = wire.invoke(operation, args);
System.out.println("Response: " + gson.toJson(response));
}
/**
* Convert request parameters from JSON to operation parameter types.
*
* @param jsonData
* @param operation
* @return
*/
private Object[] decodeJsonDataForOperation(String jsonData, Operation operation) {
Object[] args = new Object[operation.getInputType().getLogical().size()];
final String[] json = this.parseArray(jsonData);
int index = 0;
// convert each argument to the corresponding class
for (final DataType<?> dataType : operation.getInputType().getLogical()) {
args[index] = this.gson.fromJson(json[index], dataType.getPhysical());
index++;
}
return args;
}
/**
* Creates the message to be sent with a mocked EndpointReference in the
* 'from' field as the request comes from a browser (there is no actual
* comet reference running in a controlled environment).
*
* @param args
* @param callbackMethod
* @return
*/
private Message createMessageWithMockedCometReference(Object[] args, String callbackMethod) {
Message msg = new MessageImpl();
msg.setBody(args);
CometMessageContext messageContext = new CometMessageContext(this, callbackMethod);
msg.setBindingContext(messageContext);
EndpointReference re = new RuntimeEndpointReferenceImpl();
re.setCallbackEndpoint(new RuntimeEndpointImpl());
msg.setFrom(re);
return msg;
}
/**
* Parse the JSON array containing the arguments for the method call in
* order to avoid converting JSON to Object[]. Converting each object
* separately to it's corresponding type avoids type mismatch problems at
* service invocation.
*
* @param jsonArray
* the JSON array
* @return an array of JSON formatted objects
*/
private String[] parseArray(final String jsonArray) {
final List<String> objects = new ArrayList<String>();
int bracketNum = 0;
int parNum = 0;
int startPos = 1;
for (int i = 0; i < jsonArray.length(); i++) {
switch (jsonArray.charAt(i)) {
case '{':
bracketNum++;
break;
case '}':
bracketNum--;
break;
case '[':
parNum++;
break;
case ']':
parNum--;
break;
case ',':
if ((bracketNum == 0) && (parNum == 1)) {
objects.add(jsonArray.substring(startPos, i));
startPos = i + 1;
}
}
}
// add last object
objects.add(jsonArray.substring(startPos, jsonArray.length() - 1));
return objects.toArray(new String[] {});
}
public void respondToClient(String callbackMethod, Object response) {
broadcaster.broadcast(callbackMethod + "($.secureEvalJSON('" + this.gson.toJson(response) + "'))");
}
public boolean isClientConnected() {
return !broadcaster.getAtmosphereResources().isEmpty();
}
}

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/*
* 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.binding.comet.runtime.javascript;
import org.apache.tuscany.sca.assembly.ComponentService;
import org.apache.tuscany.sca.interfacedef.Operation;
/**
* This class generates proxies for the comet services.
*/
public class JavascriptGenerator {
/**
* Namespace for the Tuscany Comet Javascript toolkit.
*/
public static final String JS_NAMESPACE = "SCA";
/**
* Name for the SCA component context.
*/
private static final String COMPONENT_CONTEXT = "this.CometComponentContext";
/**
* Name for the object performing comet specific tasks.
*/
private static final String TUSCANY_COMET = "SCA.TuscanyComet";
/**
* Generated Javascript.
*/
private static StringBuffer javascript = new StringBuffer();
/**
* Default constructor for utility class.
*/
private JavascriptGenerator() {
}
/**
* Getter for the generated Javascript.
*
* @return the generated Javascript
*/
public static StringBuffer getJavascript() {
return JavascriptGenerator.javascript;
}
/**
* Generates the proxy for a service.
*
* @param service the service for which generation is performed
*/
public static void generateServiceProxy(final ComponentService service) {
JavascriptGenerator.javascript.append(JavascriptGenerator.COMPONENT_CONTEXT + "."
+ service.getName()
+ " = new Object();\n");
}
/**
* Generates the method inside the service proxy for the specified
* operation.
*
* @param service the service containing the operation
* @param operation the operation
*/
public static void generateMethodProxy(final ComponentService service, final Operation operation) {
JavascriptGenerator.javascript.append(JavascriptGenerator.COMPONENT_CONTEXT + "."
+ service.getName()
+ "."
+ operation.getName()
+ " = function(");
for (int i = 0; i < operation.getInputType().getLogical().size(); i++) {
JavascriptGenerator.javascript.append("p" + i + ", ");
}
JavascriptGenerator.javascript.append("callbackMethod) {\n");
// send method argumets as JSON array
JavascriptGenerator.javascript.append(" var params = [];\n");
for (int i = 0; i < operation.getInputType().getLogical().size(); i++) {
JavascriptGenerator.javascript.append(" params.push(p" + i + ");\n");
}
JavascriptGenerator.javascript.append(" " + JavascriptGenerator.TUSCANY_COMET
+ ".callAsync('"
+ service.getName()
+ "/"
+ operation.getName()
+ "', $.toJSON(params), callbackMethod);\n");
JavascriptGenerator.javascript.append("}\n");
}
}

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/*
* 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.binding.comet.runtime.javascript;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.SequenceInputStream;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
/**
* Class serving the calls performed to retrieve the Javascript toolkit.
*/
@Path("/")
@Produces("text/javascript")
public class JavascriptResource {
/**
* Dependencies for the Tuscany Comet Javascript API.
*/
private static final String[] DEPENDENCIES = {"/jquery.atmosphere.js", "/jquery.json-2.2.min.js",
"/cometComponentContext.js"};
/**
* Method called when the Javascript toolkit is requested.
*
* @return InputStream containing the Javascript code.
*/
@GET
public InputStream getJavascript() {
InputStream stream = null;
// add dependencies in the specified order
for (final String dependency : JavascriptResource.DEPENDENCIES) {
if (stream == null) {
stream = this.getClass().getResourceAsStream(dependency);
} else {
stream = new SequenceInputStream(stream, this.getClass().getResourceAsStream(dependency));
}
}
// add generated proxies
final String generatedJs = JavascriptGenerator.getJavascript().toString() + "\n}";
return new SequenceInputStream(stream, new ByteArrayInputStream(generatedJs.getBytes()));
}
}

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# 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.
# Implementation class for the binding extension
org.apache.tuscany.sca.binding.comet.runtime.CometBindingProviderFactory;model=org.apache.tuscany.sca.binding.comet.CometBinding

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/**
* 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.
*/
var SCA = new function() {
this.TuscanyComet = {
appUrl: 'tuscany-comet',
connectedEndpoint : null,
connect : function(transport) {
$.atmosphere.subscribe(document.location.toString() + this.appUrl,
this.callback,
$.atmosphere.request = {
transport : transport
});
this.connectedEndpoint = $.atmosphere.response;
},
callAsync : function(url, params, callbackMethod) {
this.connectedEndpoint.push(document.location.toString()
+ this.appUrl + '/' + url,
null,
$.atmosphere.request = {
method : 'POST',
data : 'callback=' + callbackMethod.name + '&params=' + params
});
},
callback : function(response) {
eval(response.responseBody);
}
};
this.CometComponentContext = new Object();

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/**
* Licensed 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.
*/
jQuery.atmosphere = function()
{
var activeRequest;
$(window).unload(function()
{
if (activeRequest)
activeRequest.abort();
});
return {
version : 0.7,
response : {
status: 200,
responseBody : '',
headers : [],
state : "messageReceived",
transport : "polling",
push : [],
error: null,
id : 0
},
request : {},
logLevel : 'info',
callbacks: [],
activeTransport : null,
websocket : null,
killHiddenIFrame : null,
subscribe: function(url, callback, request)
{
jQuery.atmosphere.request = jQuery.extend({
timeout: 300000,
method: 'GET',
headers: {},
contentType : "text/html;charset=ISO-8859-1",
cache: true,
async: true,
ifModified: false,
callback: null,
dataType: '',
url : url,
data : '',
suspend : true,
maxRequest : 60,
lastIndex : 0,
logLevel : 'info',
requestCount : 0,
fallbackTransport : 'streaming',
transport : 'long-polling'
}, request);
logLevel = jQuery.atmosphere.request.logLevel || 'info';
if (callback != null) {
jQuery.atmosphere.addCallback(callback);
jQuery.atmosphere.request.callback = callback;
}
if (jQuery.atmosphere.request.transport != jQuery.atmosphere.activeTransport) {
jQuery.atmosphere.closeSuspendedConnection();
}
jQuery.atmosphere.activeTransport = jQuery.atmosphere.request.transport;
if (jQuery.atmosphere.request.transport != 'websocket') {
jQuery.atmosphere.executeRequest();
} else if (jQuery.atmosphere.request.transport == 'websocket') {
if (!window.WebSocket) {
jQuery.atmosphere.log(logLevel, ["Websocket is not supported, using request.fallbackTransport"]);
jQuery.atmosphere.request.transport = jQuery.atmosphere.request.fallbackTransport;
jQuery.atmosphere.executeRequest();
}
else {
jQuery.atmosphere.executeWebSocket();
}
}
},
/**
* Always make sure one transport is used, not two at the same time except for Websocket.
*/
closeSuspendedConnection : function () {
if (activeRequest != null) {
activeRequest.abort();
}
if (jQuery.atmosphere.websocket != null) {
jQuery.atmosphere.websocket.close();
jQuery.atmosphere.websocket = null;
}
},
executeRequest: function()
{
if (jQuery.atmosphere.request.transport == 'streaming') {
if ($.browser.msie) {
jQuery.atmosphere.ieStreaming();
return;
} else if ((typeof window.addEventStream) == 'function') {
jQuery.atmosphere.operaStreaming();
return;
}
}
if (jQuery.atmosphere.request.requestCount++ < jQuery.atmosphere.request.maxRequest) {
jQuery.atmosphere.response.push = function (url)
{
jQuery.atmosphere.request.callback = null;
jQuery.atmosphere.publish(url, null, jQuery.atmosphere.request);
};
var request = jQuery.atmosphere.request;
var response = jQuery.atmosphere.response;
if (request.transport != 'polling') {
response.transport = request.transport;
}
var ajaxRequest;
var error = false;
if ($.browser.msie) {
var activexmodes = ["Msxml2.XMLHTTP", "Microsoft.XMLHTTP"]
for (var i = 0; i < activexmodes.length; i++) {
try {
ajaxRequest = new ActiveXObject(activexmodes[i])
}
catch(e) {
}
}
} else if (window.XMLHttpRequest) {
ajaxRequest = new XMLHttpRequest();
}
if (request.suspend) {
activeRequest = ajaxRequest;
}
ajaxRequest.open(request.method, request.url, true);
ajaxRequest.setRequestHeader("X-Atmosphere-Framework", jQuery.atmosphere.version);
ajaxRequest.setRequestHeader("X-Atmosphere-Transport", request.transport);
ajaxRequest.setRequestHeader("X-Cache-Date", new Date());
if (!$.browser.msie) {
ajaxRequest.onerror = function()
{
error = true;
try {
response.status = XMLHttpRequest.status;
}
catch(e) {
response.status = 404;
}
response.state = "error";
jQuery.atmosphere.invokeCallback(response);
ajaxRequest.abort();
activeRequest = null;
}
}
ajaxRequest.onreadystatechange = function()
{
var junkForWebkit = false;
var update = false;
if (ajaxRequest.readyState == 4) {
jQuery.atmosphere.request = request;
if (request.suspend && ajaxRequest.status == 200) {
jQuery.atmosphere.executeRequest();
}
if ($.browser.msie) {
update = true;
}
} else if (!$.browser.msie && ajaxRequest.readyState == 3 && ajaxRequest.status == 200) {
update = true;
} else {
clearTimeout(request.id);
}
if (update) {
if (request.transport == 'streaming') {
response.responseBody = ajaxRequest.responseText.substring(request.lastIndex, ajaxRequest.responseText.length);
request.lastIndex = ajaxRequest.responseText.length;
if (response.responseBody.indexOf("<!--") != -1) {
junkForWebkit = true;
}
} else {
response.responseBody = ajaxRequest.responseText;
}
if (response.responseBody.indexOf("parent.callback") != -1) {
var start = response.responseBody.indexOf("('") + 2;
var end = response.responseBody.indexOf("')");
response.responseBody = response.responseBody.substring(start, end);
}
if (junkForWebkit) return;
try {
response.status = ajaxRequest.status;
response.headers = ajaxRequest.getAllResponseHeaders();
}
catch(e) {
response.status = 404;
}
if (request.suspend) {
response.state = "messageReceived";
} else {
response.state = "messagePublished";
}
jQuery.atmosphere.invokeCallback(response);
}
}
ajaxRequest.send(request.data);
if (request.suspend) {
request.id = setTimeout(function()
{
ajaxRequest.abort();
jQuery.atmosphere.subscribe(request.url, null, request);
}, request.timeout);
}
} else {
jQuery.atmosphere.log(logLevel, ["Max re-connection reached."]);
}
},
operaStreaming: function()
{
var url = jQuery.atmosphere.request.url;
var es = document.createElement('event-source');
var response = jQuery.atmosphere.response;
jQuery.atmosphere.response.push = function (url)
{
jQuery.atmosphere.request.transport = 'polling';
jQuery.atmosphere.request.callback = null;
jQuery.atmosphere.publish(url, null, jQuery.atmosphere.request);
};
es.setAttribute('src', url);
// without this check opera 9.5 would make two connections.
if (opera.version() < 9.5) {
document.body.appendChild(es);
}
var operaCallback = function (event) {
if (event.data) {
var junkForWebkit = false;
response.responseBody = event.data;
if (event.data.indexOf("<!--") != -1) {
junkForWebkit = true;
}
if (response.responseBody.indexOf("parent.callback") != -1) {
var start = response.responseBody.indexOf("('") + 2;
var end = response.responseBody.indexOf("')");
response.responseBody = response.responseBody.substring(start, end);
}
if (junkForWebkit) return;
response.state = "messageReceived";
jQuery.atmosphere.invokeCallback(response);
}
};
es.addEventListener('payload', operaCallback, false);
},
ieStreaming : function()
{
var url = jQuery.atmosphere.request.url;
jQuery.atmosphere.response.push = function (url)
{
jQuery.atmosphere.request.transport = 'polling';
jQuery.atmosphere.request.callback = null;
jQuery.atmosphere.publish(url, null, jQuery.atmosphere.request);
};
transferDoc = new ActiveXObject("htmlfile");
transferDoc.open();
transferDoc.close();
var ifrDiv = transferDoc.createElement("div");
transferDoc.body.appendChild(ifrDiv);
ifrDiv.innerHTML = "<iframe src='" + url + "'></iframe>";
transferDoc.parentWindow.callback = jQuery.atmosphere.streamingCallback;
}
,
streamingCallback : function(args)
{
var response = jQuery.atmosphere.response;
response.transport = "streaming";
response.status = 200;
response.responseBody = args;
response.state = "messageReceived";
jQuery.atmosphere.invokeCallback(response);
}
,
executeWebSocket : function()
{
var request = jQuery.atmosphere.request;
jQuery.atmosphere.log(logLevel, ["Invoking executeWebSocket"]);
jQuery.atmosphere.response.transport = "websocket";
var url = jQuery.atmosphere.request.url;
var callback = jQuery.atmosphere.request.callback;
var location = url.replace('http:', 'ws:').replace('https:', 'wss:');
var websocket = new WebSocket(location);
jQuery.atmosphere.websocket = websocket;
jQuery.atmosphere.response.push = function (url)
{
var data;
var ws = jQuery.atmosphere.websocket;
try {
data = jQuery.atmosphere.request.data;
ws.send(jQuery.atmosphere.request.data);
} catch (e) {
jQuery.atmosphere.log(logLevel, ["Websocket failed. Downgrading to Comet and resending " + data]);
// Websocket is not supported, reconnect using the fallback transport.
request.transport = request.fallbackTransport;
jQuery.atmosphere.request = request;
jQuery.atmosphere.executeRequest();
// Repost the data.
jQuery.atmosphere.request.suspend = false;
jQuery.atmosphere.request.method = 'POST';
jQuery.atmosphere.request.data = data;
jQuery.atmosphere.response.state = 'messageReceived';
jQuery.atmosphere.response.transport = request.fallbackTransport;
jQuery.atmosphere.publish(url, null, jQuery.atmosphere.request);
ws.onclose = function(message) {
}
ws.close();
}
};
websocket.onopen = function(message)
{
jQuery.atmosphere.response.state = 'openning';
jQuery.atmosphere.invokeCallback(jQuery.atmosphere.response);
};
websocket.onmessage = function(message)
{
var data = message.data;
if (data.indexOf("parent.callback") != -1) {
var start = data.indexOf("('") + 2;
var end = data.indexOf("')");
jQuery.atmosphere.response.responseBody = data.substring(start, end);
}
else {
jQuery.atmosphere.response.responseBody = data;
}
jQuery.atmosphere.invokeCallback(jQuery.atmosphere.response);
};
websocket.onerror = function(message)
{
jQuery.atmosphere.response.state = 'error';
jQuery.atmosphere.invokeCallback(jQuery.atmosphere.response);
};
websocket.onclose = function(message)
{
jQuery.atmosphere.response.state = 'closed';
jQuery.atmosphere.invokeCallback(jQuery.atmosphere.response);
};
}
,
addCallback: function(func)
{
if (jQuery.inArray(func, jQuery.atmosphere.callbacks) == -1) {
jQuery.atmosphere.callbacks.push(func);
}
}
,
removeCallback: function(func)
{
if (jQuery.inArray(func, jQuery.atmosphere.callbacks) != -1) {
jQuery.atmosphere.callbacks.splice(index);
}
}
,
invokeCallback: function(response)
{
var call = function (index, func)
{
func(response);
};
jQuery.atmosphere.log(logLevel, ["Invoking " + jQuery.atmosphere.callbacks.length + " callbacks"]);
if (jQuery.atmosphere.callbacks.length > 0) {
jQuery.each(jQuery.atmosphere.callbacks, call);
}
}
,
publish: function(url, callback, request)
{
jQuery.atmosphere.request = jQuery.extend({
connected: false,
timeout: 60000,
method: 'POST',
headers: {},
cache: true,
async: true,
ifModified: false,
callback: null,
dataType: '',
url : url,
data : '',
suspend : false,
maxRequest : 60,
logLevel : 'info',
requestCount : 0,
transport: 'polling'
}, request);
if (callback != null) {
jQuery.atmosphere.addCallback(callback);
}
jQuery.atmosphere.request.transport = 'polling';
if (jQuery.atmosphere.request.transport != 'websocket') {
jQuery.atmosphere.executeRequest();
} else if (jQuery.atmosphere.request.transport == 'websocket') {
if (!window.WebSocket) {
alert("WebSocket not supported by this browser");
}
else {
jQuery.atmosphere.executeWebSocket();
}
}
}
,
unload: function (arg) {
if (window.addEventListener) {
document.addEventListener('unload', arg, false);
window.addEventListener('unload', arg, false);
} else { // IE
document.attachEvent('onunload', arg);
window.attachEvent('onunload', arg);
}
}
,
kill_load_bar : function() {
if (jQuery.atmosphere.killHiddenIFrame == null) {
jQuery.atmosphere.killHiddenIFrame = document.createElement('iframe');
var ifr = jQuery.atmosphere.killHiddenIFrame;
ifr.style.display = 'block';
ifr.style.width = '0';
ifr.style.height = '0';
ifr.style.border = '0';
ifr.style.margin = '0';
ifr.style.padding = '0';
ifr.style.overflow = 'hidden';
ifr.style.visibility = 'hidden';
}
document.body.appendChild(ifr);
ifr.src = 'about:blank';
document.body.removeChild(ifr);
}
,
log: function (level, args)
{
if (window.console)
{
var logger = window.console[level];
if (typeof logger == 'function')
{
logger.apply(window.console, args);
}
}
}
,
warn: function()
{
log('warn', arguments);
}
,
info :function()
{
if (logLevel != 'warn')
{
log('info', arguments);
}
}
,
debug: function()
{
if (logLevel == 'debug')
{
log('debug', arguments);
}
}
}
}
();

View file

@ -0,0 +1,31 @@
(function($){$.toJSON=function(o)
{if(typeof(JSON)=='object'&&JSON.stringify)
return JSON.stringify(o);var type=typeof(o);if(o===null)
return"null";if(type=="undefined")
return undefined;if(type=="number"||type=="boolean")
return o+"";if(type=="string")
return $.quoteString(o);if(type=='object')
{if(typeof o.toJSON=="function")
return $.toJSON(o.toJSON());if(o.constructor===Date)
{var month=o.getUTCMonth()+1;if(month<10)month='0'+month;var day=o.getUTCDate();if(day<10)day='0'+day;var year=o.getUTCFullYear();var hours=o.getUTCHours();if(hours<10)hours='0'+hours;var minutes=o.getUTCMinutes();if(minutes<10)minutes='0'+minutes;var seconds=o.getUTCSeconds();if(seconds<10)seconds='0'+seconds;var milli=o.getUTCMilliseconds();if(milli<100)milli='0'+milli;if(milli<10)milli='0'+milli;return'"'+year+'-'+month+'-'+day+'T'+
hours+':'+minutes+':'+seconds+'.'+milli+'Z"';}
if(o.constructor===Array)
{var ret=[];for(var i=0;i<o.length;i++)
ret.push($.toJSON(o[i])||"null");return"["+ret.join(",")+"]";}
var pairs=[];for(var k in o){var name;var type=typeof k;if(type=="number")
name='"'+k+'"';else if(type=="string")
name=$.quoteString(k);else
continue;if(typeof o[k]=="function")
continue;var val=$.toJSON(o[k]);pairs.push(name+":"+val);}
return"{"+pairs.join(", ")+"}";}};$.evalJSON=function(src)
{if(typeof(JSON)=='object'&&JSON.parse)
return JSON.parse(src);return eval("("+src+")");};$.secureEvalJSON=function(src)
{if(typeof(JSON)=='object'&&JSON.parse)
return JSON.parse(src);var filtered=src;filtered=filtered.replace(/\\["\\\/bfnrtu]/g,'@');filtered=filtered.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,']');filtered=filtered.replace(/(?:^|:|,)(?:\s*\[)+/g,'');if(/^[\],:{}\s]*$/.test(filtered))
return eval("("+src+")");else
throw new SyntaxError("Error parsing JSON, source is not valid.");};$.quoteString=function(string)
{if(string.match(_escapeable))
{return'"'+string.replace(_escapeable,function(a)
{var c=_meta[a];if(typeof c==='string')return c;c=a.charCodeAt();return'\\u00'+Math.floor(c/16).toString(16)+(c%16).toString(16);})+'"';}
return'"'+string+'"';};var _escapeable=/["\\\x00-\x1f\x7f-\x9f]/g;var _meta={'\b':'\\b','\t':'\\t','\n':'\\n','\f':'\\f','\r':'\\r','"':'\\"','\\':'\\\\'};})(jQuery);

View file

@ -0,0 +1,55 @@
/*
* 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.test;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.tuscany.sca.http.jetty.JettyServer;
import org.apache.tuscany.sca.node.Contribution;
import org.apache.tuscany.sca.node.ContributionLocationHelper;
import org.apache.tuscany.sca.node.Node;
import org.apache.tuscany.sca.node.NodeFactory;
/**
* Test case for the comet binding.
*/
public class CometTestCase extends TestCase {
/**
* Test consisting in starting up a node containing services exposed via the
* comet binding.
*/
public void testComet() {
JettyServer.portDefault = 8085;
try {
final String location = ContributionLocationHelper.getContributionLocation("test.composite");
final Node node = NodeFactory.newInstance().createNode("test.composite", new Contribution("c1", location));
node.start();
// System.out.println("Press any key to stop the node.");
// System.in.read();
node.stop();
} catch (final Exception e) {
e.printStackTrace();
Assert.fail();
}
}
}

View file

@ -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 org.apache.tuscany.sca.test;
import org.oasisopen.sca.annotation.Remotable;
@Remotable
public interface StockService {
String getQuotes();
}

View file

@ -0,0 +1,39 @@
/*
* 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.test;
import java.text.DecimalFormat;
import java.util.Date;
import java.util.Random;
import org.oasisopen.sca.annotation.Service;
@Service(StockService.class)
public class StockServiceImpl implements StockService {
public static final int MAX_VALUE = 1000;
private final Random random = new Random(new Date().getTime());
@Override
public String getQuotes() {
final Double value = Math.abs(this.random.nextDouble() * this.random.nextInt(StockServiceImpl.MAX_VALUE));
return "ASF" + "#" + Double.valueOf(new DecimalFormat("#.##").format(value));
}
}

View file

@ -0,0 +1,33 @@
<?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="Stock">
<component name="test">
<implementation.java class="org.apache.tuscany.sca.test.StockServiceImpl"/>
<service name="StockService">
<interface.java interface="org.apache.tuscany.sca.test.StockService"/>
<tuscany:binding.comet/>
</service>
</component>
</composite>