From 132aa8a77685ec92bc90c03f987650d275a7b639 Mon Sep 17 00:00:00 2001 From: lresende Date: Mon, 30 Sep 2013 06:59:11 +0000 Subject: 2.0.1 RC1 release tag git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1527464 13f79535-47bb-0310-9956-ffa450edef68 --- .../provider/WidgetImplementationInvoker.java | 144 +++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java') diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java new file mode 100644 index 0000000000..394f12c8b1 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java @@ -0,0 +1,144 @@ +/* + * 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.implementation.widget.provider; + +import java.io.ByteArrayInputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.OutputStream; +import java.io.PrintWriter; +import java.io.UnsupportedEncodingException; +import java.net.MalformedURLException; +import java.net.URL; +import java.net.URLDecoder; + +import javax.servlet.http.HttpServletRequest; + +import org.apache.tuscany.sca.common.http.HTTPContext; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.web.javascript.ComponentJavaScriptGenerator; + + +/** + * Implements an invoker for resource component implementations. + * + * @version $Rev$ $Date$ + */ +class WidgetImplementationInvoker implements Invoker { + private RuntimeComponent component; + private ComponentJavaScriptGenerator javaScriptGenerator; + private String widgetName; + private String widgetFolderURL; + private String widgetLocationURL; + + WidgetImplementationInvoker(RuntimeComponent component, ComponentJavaScriptGenerator javaScriptGenerator, String widgetName, String widgetFolderURL, String widgetLocationURL) { + this.component = component; + this.javaScriptGenerator = javaScriptGenerator; + this.widgetName = widgetName + ".js"; + this.widgetFolderURL = widgetFolderURL; + this.widgetLocationURL = widgetLocationURL; + } + + public Message invoke(Message msg) { + HTTPContext bindingContext = (HTTPContext) msg.getBindingContext(); + HttpServletRequest request = bindingContext.getHttpRequest(); + + + // Get the request path + String pathInfo = request.getPathInfo(); + String path = null; + + if(pathInfo != null) { + try { + path = URLDecoder.decode(pathInfo, "UTF-8"); + } catch (UnsupportedEncodingException uee) { + //ignore for now + } + } + + // Get the resource id from the request message + String id = path == null ? "" : path.substring(1); + try { + + if (id.length() == 0) { + + // Return an input stream for the widget resource + URL url = new URL(widgetLocationURL); + //InputStream is = url.openStream(); + //msg.setBody(is); + writeResponse(bindingContext, url.openStream()); + + } else if (id.equals(widgetName)) { + + // Generate JavaScript header for use in the Widget + ByteArrayOutputStream bos = new ByteArrayOutputStream(); + PrintWriter pw = new PrintWriter(bos); + + javaScriptGenerator.generateJavaScriptCode(component, pw); + + InputStream is = new ByteArrayInputStream(bos.toByteArray()); + + //msg.setBody(is); + writeResponse(bindingContext, is); + + } else { + + // Return an input stream for a resource inside the + // widget folder + URL url = new URL(widgetFolderURL +'/' + id); + InputStream is = url.openStream(); + //msg.setBody(is); + writeResponse(bindingContext, is); + } + } catch (MalformedURLException e) { + + // Report exception as a fault + msg.setFaultBody(e); + + } catch (IOException e) { + + // Report exception as a fault + msg.setFaultBody(e); + } + return msg; + } + + /** + * Write the widget response to the http response outputstream + * @param bindingContext + * @param is + * @throws IOException + */ + private static void writeResponse(HTTPContext bindingContext, InputStream is) throws IOException { + OutputStream os = bindingContext.getHttpResponse().getOutputStream(); + byte[] buffer = new byte[2048]; + for (;;) { + int n = is.read(buffer); + if (n <= 0) + break; + os.write(buffer, 0, n); + } + os.flush(); + os.close(); + } +} -- cgit v1.2.3