diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0-Beta4-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptGenerator.java')
-rw-r--r-- | sca-java-2.x/tags/2.0-Beta4-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptGenerator.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0-Beta4-RC1/modules/binding-websocket/src/main/java/org/apache/tuscany/sca/binding/websocket/runtime/JavascriptGenerator.java b/sca-java-2.x/tags/2.0-Beta4-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-Beta4-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() {
+ }
+
+}
|