diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime')
15 files changed, 1045 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JSONUtil.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JSONUtil.java new file mode 100644 index 0000000000..80cbf6a6d9 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JSONUtil.java @@ -0,0 +1,106 @@ +/* + * 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.websocket.runtime; + +import java.util.ArrayList; +import java.util.List; + +import org.apache.tuscany.sca.interfacedef.DataType; +import org.apache.tuscany.sca.interfacedef.Operation; + +import com.google.gson.Gson; + +/** + * Utility class to handle JSON convertions. + */ +public class JSONUtil { + + private static Gson gson = new Gson(); + + public static String encodeMessage(WebsocketBindingMessage message) { + return gson.toJson(message); + } + + public static WebsocketBindingMessage decodeMessage(String jsonMessage) { + return gson.fromJson(jsonMessage, WebsocketBindingMessage.class); + } + + public static String encodePayload(Object payload) { + return gson.toJson(payload); + } + + /** + * Convert opeartion parameters from JSON to the appropriate parameter + * types. + */ + public static Object[] decodePayloadForOperation(String jsonData, Operation operation) { + Object[] args = new Object[operation.getInputType().getLogical().size()]; + final String[] json = parseArray(jsonData); + int index = 0; + for (final DataType<?> dataType : operation.getInputType().getLogical()) { + args[index] = gson.fromJson(json[index], dataType.getPhysical()); + index++; + } + return args; + } + + /** + * Split the JSON array containing the arguments for the opeartion in order + * to avoid converting JSON to Object[]. Converting each object separately + * to it's corresponding data type avoids type mismatch problems at service + * invocation. + */ + private static String[] parseArray(String jsonArray) { + List<String> objects = new ArrayList<String>(); + int bracketNum = 0; + int parNum = 0; + int quoteNum = 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 '\"': + quoteNum++; + break; + case ',': + if ((bracketNum == 0) && (parNum == 1) && quoteNum % 2 == 0) { + objects.add(jsonArray.substring(startPos, i)); + startPos = i + 1; + } + } + } + objects.add(jsonArray.substring(startPos, jsonArray.length() - 1)); + return objects.toArray(new String[] {}); + } + + private JSONUtil() { + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptGenerator.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptGenerator.java new file mode 100644 index 0000000000..21b953151b --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptGenerator.java @@ -0,0 +1,113 @@ +/*
+ * 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.
+ */
+
+/*
+ * 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.websocket.runtime;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.interfacedef.Operation;
+
+/**
+ * Generates javascript service proxies using the websocket API. This enables
+ * simulating SCA on the client side javascript. This is a stateful singleton.
+ */
+public class JavascriptGenerator {
+
+ private final static String CONTEXT = "this.WebsocketComponentContext";
+ private static final String LF = "\n";
+ private static StringBuilder builder = new StringBuilder();
+
+ /**
+ * Generate javascript code for one service and all it's operations. Add
+ * this to the state of the generator.
+ */
+ public static void generateServiceProxy(String component, String service, List<Operation> operations, int port) {
+ if (builder.length() == 0) {
+ builder.append(CONTEXT).append("={};").append(LF);
+ }
+ builder.append("if(!" + CONTEXT + "." + component + ")" + CONTEXT + "." + component + "={};").append(LF);
+ builder.append(CONTEXT + "." + component + "." + service + "={};").append(LF);
+ for (Operation operation : operations) {
+ builder.append(
+ CONTEXT + "." + component + "." + service + "." + operation.getName() + "="
+ + generateFunctionHeader(operation)).append(LF);
+ builder.append(generateFunctionContent(port, component, service, operation)).append(LF);
+ builder.append("};").append(LF);
+ }
+ }
+
+ private static String generateFunctionHeader(Operation operation) {
+ String header = "function(";
+ for (int i = 0; i < operation.getInputType().getLogical().size(); i++) {
+ if (i > 0)
+ header += ",";
+ header += "p" + i;
+ }
+ header += ") {";
+ return header;
+ }
+
+ private static String generateFunctionContent(int port, String component, String service, Operation operation) {
+ String content = "sendMessage(" + port + ",'" + component + "." + service + "." + operation.getName() + "',[";
+ for (int i = 0; i < operation.getInputType().getLogical().size(); i++) {
+ if (i > 0)
+ content += ",";
+ content += "p" + i;
+ }
+ content += "]);";
+ return content;
+ }
+
+ /**
+ * Get the state of the generator.
+ */
+ public static String getServiceProxies() {
+ return builder.toString();
+ }
+
+ /**
+ * Reset the state of the generator.
+ */
+ public static void clear() {
+ builder.setLength(0);
+ }
+
+ private JavascriptGenerator() {
+ }
+
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptResourceServlet.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptResourceServlet.java new file mode 100644 index 0000000000..50d68a19bc --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptResourceServlet.java @@ -0,0 +1,105 @@ +/*
+ * 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.
+ */
+
+/*
+ * 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.websocket.runtime;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/**
+ * This servlet serves the generated javascript service proxies.
+ */
+public class JavascriptResourceServlet extends HttpServlet {
+
+ private static final String WEBSOCKET_TOOLKIT_PATH = "js/TuscanyWebsocketToolkit.js";
+
+ private String websocketToolkit;
+
+ @Override
+ protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException {
+ try {
+ resp.setContentType("text/javascript");
+ OutputStream os = resp.getOutputStream();
+ os.write("var Tuscany = new function() {\n".getBytes());
+ os.write(getWebsocketToolkit().getBytes());
+ os.write(JavascriptGenerator.getServiceProxies().getBytes());
+ os.write("}\n".getBytes());
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ private String getWebsocketToolkit() {
+ if (websocketToolkit == null) {
+ websocketToolkit = getResource(WEBSOCKET_TOOLKIT_PATH);
+ }
+ return websocketToolkit;
+ }
+
+ /**
+ * Read a resource from the disk by relative path.
+ */
+ private String getResource(String path) {
+ InputStream is = getClass().getClassLoader().getResourceAsStream(path);
+ BufferedReader r = new BufferedReader(new InputStreamReader(is));
+ StringBuilder builder = new StringBuilder();
+ try {
+ String line = null;
+ while ((line = r.readLine()) != null) {
+ builder.append(line + "\n");
+ }
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ } finally {
+ try {
+ r.close();
+ } catch (IOException ignored) {
+ }
+ }
+ return builder.toString();
+ }
+
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/TuscanyWebsocket.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/TuscanyWebsocket.java new file mode 100644 index 0000000000..b71ca27543 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/TuscanyWebsocket.java @@ -0,0 +1,85 @@ +/* + * 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.websocket.runtime; + +import java.io.IOException; +import java.util.UUID; + +import org.eclipse.jetty.websocket.WebSocket; + +/** + * A websocket connection handling communication between one browser client and + * *all* websocket services hosted by a server. The connection is persisted as + * long as the client is connected and communication with all services is + * multiplexed via a single websocket connection. + */ +public class TuscanyWebsocket implements WebSocket, WebSocket.OnTextMessage { + + private String id; + private Connection connection; + private WebsocketBindingDispatcher dispatcher; + + public TuscanyWebsocket(WebsocketBindingDispatcher dispatcher) { + this.dispatcher = dispatcher; + } + + @Override + public void onOpen(Connection connection) { + this.connection = connection; + this.id = UUID.randomUUID().toString(); + WebsocketConnectionManager.addConnection(this); + } + + @Override + public void onMessage(String jsonRequest) { + WebsocketBindingMessage request = JSONUtil.decodeMessage(jsonRequest); + WebsocketServiceInvoker invoker = dispatcher.dispatch(request.getOperation()); + if (invoker == null) { + throw new RuntimeException("No operation found for " + request.getOperation()); + } else { + if (!invoker.isNonBlocking()) { + WebsocketBindingMessage response = invoker.invokeSync(request); + send(response); + } else { + invoker.invokeAsync(request, this); + } + } + } + + @Override + public void onClose(int closeCode, String message) { + WebsocketConnectionManager.removeConnection(this); + } + + public void send(WebsocketBindingMessage message) { + try { + if (connection.isOpen()) { + connection.sendMessage(JSONUtil.encodeMessage(message)); + } + } catch (IOException e) { + throw new RuntimeException(e); + } + } + + public String getId() { + return id; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingCallback.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingCallback.java new file mode 100644 index 0000000000..3ece55aa00 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingCallback.java @@ -0,0 +1,31 @@ +/* + * 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.websocket.runtime; + +import org.oasisopen.sca.annotation.Remotable; + +/** + * Interface describing the websocket binding callback to a browser client. + */ +@Remotable +public interface WebsocketBindingCallback { + + public WebsocketStatus sendMessage(Object message); + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingDispatcher.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingDispatcher.java new file mode 100644 index 0000000000..3b62c726e9 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingDispatcher.java @@ -0,0 +1,43 @@ +/* + * 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.websocket.runtime; + +import java.util.HashMap; +import java.util.Map; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.runtime.RuntimeEndpoint; + +/** + * A dispatcher stores all service invokers for a servers and is used to + * determine which one of them should be used when a request comes in. + */ +public class WebsocketBindingDispatcher { + + private Map<String, WebsocketServiceInvoker> invokers = new HashMap<String, WebsocketServiceInvoker>(); + + public void addOperation(String uri, ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint, Operation operation) { + invokers.put(uri, new WebsocketServiceInvoker(extensionPoints, operation, endpoint)); + } + + public WebsocketServiceInvoker dispatch(String uri) { + return invokers.get(uri); + } +}
\ No newline at end of file diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingMessage.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingMessage.java new file mode 100644 index 0000000000..f7ea1d1620 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingMessage.java @@ -0,0 +1,50 @@ +/* + * 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.websocket.runtime; + +/** + * The websocket binding message structure. + */ +public class WebsocketBindingMessage { + + private String operation; + private String payload; + + public WebsocketBindingMessage(String operation, String payload) { + this.operation = operation; + this.payload = payload; + } + + public String getOperation() { + return operation; + } + + public void setOperation(String operation) { + this.operation = operation; + } + + public String getPayload() { + return payload; + } + + public void setPayload(String payload) { + this.payload = payload; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingProviderFactory.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingProviderFactory.java new file mode 100644 index 0000000000..97f548aa74 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketBindingProviderFactory.java @@ -0,0 +1,57 @@ +/*
+ * 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.websocket.runtime;
+
+import org.apache.tuscany.sca.binding.websocket.WebsocketBinding;
+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 reference and service binding providers.
+ */
+public class WebsocketBindingProviderFactory implements BindingProviderFactory<WebsocketBinding> {
+
+ private ExtensionPointRegistry extensionPoints;
+ private ServletHost servletHost;
+
+ public WebsocketBindingProviderFactory(ExtensionPointRegistry extensionPoints) {
+ this.extensionPoints = extensionPoints;
+ this.servletHost = ServletHostHelper.getServletHost(extensionPoints);
+ }
+
+ public Class<WebsocketBinding> getModelType() {
+ return WebsocketBinding.class;
+ }
+
+ public ReferenceBindingProvider createReferenceBindingProvider(RuntimeEndpointReference endpoint) {
+ return new WebsocketReferenceBindingProvider(endpoint);
+ }
+
+ public ServiceBindingProvider createServiceBindingProvider(RuntimeEndpoint endpoint) {
+ return new WebsocketServiceBindingProvider(extensionPoints, endpoint, servletHost);
+ }
+
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketCallbackInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketCallbackInvoker.java new file mode 100644 index 0000000000..ebd7f13081 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketCallbackInvoker.java @@ -0,0 +1,59 @@ +/*
+ * 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.websocket.runtime;
+
+import org.apache.tuscany.sca.assembly.EndpointReference;
+import org.apache.tuscany.sca.core.invocation.Constants;
+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;
+
+/**
+ * The callback invoker is used to send asynchronous responses back to the
+ * browser client.
+ */
+public class WebsocketCallbackInvoker implements Invoker {
+
+ protected Operation operation;
+ protected EndpointReference endpoint;
+
+ public WebsocketCallbackInvoker(Operation operation, EndpointReference endpoint) {
+ this.operation = operation;
+ this.endpoint = endpoint;
+ }
+
+ public Message invoke(Message msg) {
+ String channelId = (String) msg.getHeaders().get(Constants.RELATES_TO);
+ TuscanyWebsocket websocket = WebsocketConnectionManager.getConnection(channelId);
+ Message response = new MessageImpl();
+ if (websocket == null) {
+ response.setBody(WebsocketStatus.CLOSED);
+ } else {
+ Object[] body = msg.getBody();
+ String payload = JSONUtil.encodePayload(body[0]);
+ String operation = msg.getTo().getURI();
+ WebsocketBindingMessage message = new WebsocketBindingMessage(operation, payload);
+ websocket.send(message);
+ response.setBody(WebsocketStatus.OPEN);
+ }
+ return response;
+ }
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketConnectionManager.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketConnectionManager.java new file mode 100644 index 0000000000..ba95d77b7f --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketConnectionManager.java @@ -0,0 +1,53 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.tuscany.sca.binding.websocket.runtime; + +import java.util.concurrent.ConcurrentHashMap; +import java.util.concurrent.ConcurrentMap; + +/** + * The connection manager stores all active websocket connections in order to be + * able to retrieve the appropriate communication channel when an asynchronous + * response is sent. + */ +public class WebsocketConnectionManager { + + private static ConcurrentMap<String, TuscanyWebsocket> activeConnections = new ConcurrentHashMap<String, TuscanyWebsocket>(); + + public static void addConnection(TuscanyWebsocket websocket) { + activeConnections.put(websocket.getId(), websocket); + } + + public static void removeConnection(TuscanyWebsocket websocket) { + activeConnections.remove(websocket.getId()); + } + + public static TuscanyWebsocket getConnection(String id) { + return activeConnections.get(id); + } + + public static void clear() { + activeConnections.clear(); + } + + private WebsocketConnectionManager() { + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketReferenceBindingProvider.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketReferenceBindingProvider.java new file mode 100644 index 0000000000..dfd632d330 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketReferenceBindingProvider.java @@ -0,0 +1,60 @@ +/*
+ * 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.websocket.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;
+
+/**
+ * The reference binding provider is used to initiate the necessary
+ * infrastructure on the reference side. As the binding only supports browser
+ * clients, the reference binding provider is used as a factory for callback
+ * invokers.
+ */
+public class WebsocketReferenceBindingProvider implements ReferenceBindingProvider {
+
+ private EndpointReference endpoint;
+
+ public WebsocketReferenceBindingProvider(EndpointReference endpoint) {
+ this.endpoint = endpoint;
+ }
+
+ public Invoker createInvoker(Operation operation) {
+ return new WebsocketCallbackInvoker(operation, endpoint);
+ }
+
+ public void start() {
+ }
+
+ public void stop() {
+ }
+
+ public InterfaceContract getBindingInterfaceContract() {
+ return endpoint.getComponentReferenceInterfaceContract();
+ }
+
+ public boolean supportsOneWayInvocation() {
+ return false;
+ }
+
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServer.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServer.java new file mode 100644 index 0000000000..cde86b0575 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServer.java @@ -0,0 +1,59 @@ +/* + * 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.websocket.runtime; + +import java.net.URISyntaxException; + +import javax.servlet.http.HttpServletRequest; + +import org.eclipse.jetty.server.Server; +import org.eclipse.jetty.server.nio.SelectChannelConnector; +import org.eclipse.jetty.websocket.WebSocket; +import org.eclipse.jetty.websocket.WebSocketHandler; + +/** + * The websocket server is an embedded Jetty instance which will be started on + * the port specified in the component definition. + */ +public class WebsocketServer extends Server { + + private WebsocketBindingDispatcher dispatcher; + + public WebsocketServer(int port) throws URISyntaxException { + SelectChannelConnector connector = new SelectChannelConnector(); + connector.setPort(port); + addConnector(connector); + + setHandler(new WebSocketHandler() { + + @Override + public WebSocket doWebSocketConnect(HttpServletRequest request, String protocol) { + return new TuscanyWebsocket(dispatcher); + } + }); + + dispatcher = new WebsocketBindingDispatcher(); + } + + public WebsocketBindingDispatcher getDispatcher() { + return dispatcher; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceBindingProvider.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceBindingProvider.java new file mode 100644 index 0000000000..5a8fd0f7ad --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceBindingProvider.java @@ -0,0 +1,112 @@ +/*
+ * 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.websocket.runtime;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.binding.websocket.WebsocketBinding;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.host.http.ServletHost;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+
+/**
+ * The service binding provider initiates the necessary infrastructure to expose
+ * services via websockets.
+ */
+public class WebsocketServiceBindingProvider implements ServiceBindingProvider {
+
+ private static final int DEFAULT_PORT = 9000;
+ private static final String JAVASCRIPT_RESOURCE_PATH = "/org.apache.tuscany.sca.WebsocketComponentContext.js";
+ private static Map<Integer, WebsocketServer> servers = new HashMap<Integer, WebsocketServer>();
+ private ExtensionPointRegistry extensionPoints;
+ private RuntimeEndpoint endpoint;
+ private ServletHost servletHost;
+
+ public WebsocketServiceBindingProvider(ExtensionPointRegistry extensionPoints, RuntimeEndpoint endpoint, ServletHost servletHost) {
+ this.extensionPoints = extensionPoints;
+ this.endpoint = endpoint;
+ this.servletHost = servletHost;
+ }
+
+ public void start() {
+ WebsocketBinding binding = (WebsocketBinding) endpoint.getBinding();
+ int port = DEFAULT_PORT;
+ if (binding.getPort() != null) {
+ port = Integer.parseInt(binding.getPort());
+ }
+ try {
+ WebsocketServer server = initServerForURI(port);
+ String component = endpoint.getComponent().getName();
+ String service = endpoint.getService().getName();
+ for (Operation op : getBindingInterfaceContract().getInterface().getOperations()) {
+ String operation = op.getName();
+ server.getDispatcher().addOperation(component + "." + service + "." + operation, extensionPoints, endpoint, op);
+ }
+ JavascriptGenerator.generateServiceProxy(component, service, getBindingInterfaceContract().getInterface()
+ .getOperations(), port);
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ initJavascriptResource();
+ }
+
+ private WebsocketServer initServerForURI(int port) throws Exception {
+ WebsocketServer server = servers.get(port);
+ if (server == null) {
+ server = new WebsocketServer(port);
+ server.start();
+ servers.put(port, server);
+ }
+ return server;
+ }
+
+ private void initJavascriptResource() {
+ if (servletHost.getServletMapping(JAVASCRIPT_RESOURCE_PATH) == null) {
+ servletHost.addServletMapping(JAVASCRIPT_RESOURCE_PATH, new JavascriptResourceServlet());
+ }
+ }
+
+ public void stop() {
+ for (WebsocketServer server : servers.values()) {
+ try {
+ server.stop();
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
+ servers.clear();
+ servletHost.removeServletMapping(JAVASCRIPT_RESOURCE_PATH);
+ JavascriptGenerator.clear();
+ WebsocketConnectionManager.clear();
+ }
+
+ public InterfaceContract getBindingInterfaceContract() {
+ return endpoint.getService().getInterfaceContract();
+ }
+
+ public boolean supportsOneWayInvocation() {
+ return false;
+ }
+
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceInvoker.java new file mode 100644 index 0000000000..6bf6d865b1 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketServiceInvoker.java @@ -0,0 +1,84 @@ +/*
+ * 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.websocket.runtime;
+
+import java.lang.reflect.InvocationTargetException;
+
+import org.apache.tuscany.sca.assembly.AssemblyFactory;
+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.core.FactoryExtensionPoint;
+import org.apache.tuscany.sca.core.invocation.Constants;
+import org.apache.tuscany.sca.core.invocation.impl.MessageImpl;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+
+/**
+ * The service invoker is used to call an operation implementation in a
+ * synchronous or asynchronous way.
+ */
+public class WebsocketServiceInvoker {
+
+ protected AssemblyFactory assemblyFactory;
+ protected Operation operation;
+ protected RuntimeEndpoint endpoint;
+
+ public WebsocketServiceInvoker(ExtensionPointRegistry extensionPoints, Operation operation, RuntimeEndpoint endpoint) {
+ FactoryExtensionPoint modelFactories = extensionPoints.getExtensionPoint(FactoryExtensionPoint.class);
+ assemblyFactory = modelFactories.getFactory(AssemblyFactory.class);
+
+ this.operation = operation;
+ this.endpoint = endpoint;
+ }
+
+ public WebsocketBindingMessage invokeSync(WebsocketBindingMessage request) {
+ String jsonParams = request.getPayload();
+ Object[] args = JSONUtil.decodePayloadForOperation(jsonParams, operation);
+ try {
+ Object operationResponse = endpoint.invoke(operation, args);
+ String payload = JSONUtil.encodePayload(operationResponse);
+ WebsocketBindingMessage response = new WebsocketBindingMessage(request.getOperation(), payload);
+ return response;
+ } catch (InvocationTargetException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public void invokeAsync(WebsocketBindingMessage request, TuscanyWebsocket channel) {
+ String jsonParams = request.getPayload();
+ Object[] args = JSONUtil.decodePayloadForOperation(jsonParams, operation);
+ Message msg = new MessageImpl();
+ msg.getHeaders().put(Constants.MESSAGE_ID, channel.getId());
+ msg.setBody(args);
+ EndpointReference re = assemblyFactory.createEndpointReference(); //new RuntimeEndpointReferenceImpl();
+ Endpoint callbackEndpoint = assemblyFactory.createEndpoint(); //new RuntimeEndpointImpl();
+ callbackEndpoint.setURI(request.getOperation());
+ re.setCallbackEndpoint(callbackEndpoint);
+ msg.setFrom(re);
+ endpoint.invoke(operation, msg);
+ }
+
+ public boolean isNonBlocking() {
+ return operation.isNonBlocking();
+ }
+
+}
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketStatus.java b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketStatus.java new file mode 100644 index 0000000000..0b1f24212b --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/WebsocketStatus.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 org.apache.tuscany.sca.binding.websocket.runtime; + +/** + * The websocket status indicates the state of a websocket connection when a + * send operation is performed. + */ +public enum WebsocketStatus { + OPEN, CLOSED +} |