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author | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2010-10-26 07:46:08 +0000 |
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committer | antelder <antelder@13f79535-47bb-0310-9956-ffa450edef68> | 2010-10-26 07:46:08 +0000 |
commit | 6865c59e74f19ed6057d03583944b47abd6e036e (patch) | |
tree | 3324c11c7ca4f5ca12f15619ce30e9824e198480 /sca-java-2.x/branches/2.0-Beta1/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPXMLWireFormatServiceInterceptor.java | |
parent | 0d6d7922ed17cca55ec36ff2626d1080e76d6d13 (diff) |
Create branch for next release
git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1027394 13f79535-47bb-0310-9956-ffa450edef68
Diffstat (limited to '')
-rw-r--r-- | sca-java-2.x/branches/2.0-Beta1/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPXMLWireFormatServiceInterceptor.java | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta1/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPXMLWireFormatServiceInterceptor.java b/sca-java-2.x/branches/2.0-Beta1/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPXMLWireFormatServiceInterceptor.java new file mode 100644 index 0000000000..8bd8b8b9f0 --- /dev/null +++ b/sca-java-2.x/branches/2.0-Beta1/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPXMLWireFormatServiceInterceptor.java @@ -0,0 +1,182 @@ +/*
+ * 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.http.format;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+import javax.servlet.ServletRequest;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.tuscany.sca.binding.http.provider.HTTPContext;
+import org.apache.tuscany.sca.common.xml.dom.DOMHelper;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.util.FaultException;
+import org.apache.tuscany.sca.invocation.Interceptor;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
+import org.oasisopen.sca.ServiceRuntimeException;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.xml.sax.SAXException;
+
+/**
+ * Handles the xml wire format for the http binding
+ */
+public class HTTPXMLWireFormatServiceInterceptor implements Interceptor {
+
+ private Invoker next;
+ private DOMHelper domHelper;
+
+ public HTTPXMLWireFormatServiceInterceptor(RuntimeEndpoint endpoint, DOMHelper domHelper) {
+ this.domHelper = domHelper;
+ }
+
+ @Override
+ public void setNext(Invoker next) {
+ this.next = next;
+ }
+
+ @Override
+ public Invoker getNext() {
+ return next;
+ }
+
+ @Override
+ public Message invoke(Message msg) {
+ try {
+ return invokeResponse(getNext().invoke(invokeRequest(msg)));
+ } catch (Exception e) {
+ throw new ServiceRuntimeException(e);
+ }
+ }
+
+ private Message invokeRequest(Message msg) throws IOException, SAXException {
+ HTTPContext context = msg.getBindingContext();
+ HttpServletRequest servletRequest = context.getRequest();
+ if ("GET".equals(servletRequest.getMethod())) {
+ msg.setBody(getRequestFromQueryString(msg.getOperation(), servletRequest));
+ } else {
+ msg.setBody(new Object[]{domHelper.load(read(servletRequest))});
+ }
+ return msg;
+ }
+
+ private Message invokeResponse(Message msg) throws IOException {
+ HTTPContext context = msg.getBindingContext();
+ HttpServletResponse servletResponse = context.getResponse();
+
+ servletResponse.setContentType("text/xml");
+
+ Object o = msg.getBody();
+ if (msg.isFault()) {
+ String xml = domHelper.saveAsString((Node)((FaultException)o).getFaultInfo());
+ servletResponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, xml);
+ } else {
+ String xml = "";
+ if (o instanceof Element) {
+ xml = domHelper.saveAsString((Node)o);
+ } else if ((o instanceof Object[]) && ((Object[])o)[0] instanceof Node) {
+ xml = domHelper.saveAsString((Node)((Object[])o)[0]);
+ } else if (o != null) {
+ throw new IllegalStateException("expecting Node payload: " + o);
+ }
+ servletResponse.getOutputStream().println(xml);
+ }
+
+ return msg;
+ }
+
+ /**
+ * Turn the query request into XML.
+ */
+ protected Object[] getRequestFromQueryString(Operation operation, ServletRequest servletRequest) throws IOException, SAXException {
+ List<Object> xmlRequestArray = new ArrayList<Object>();
+ for (String name : getOrderedParameterNames(servletRequest)) {
+ xmlRequestArray.add(domHelper.load("<" + name + ">" + servletRequest.getParameter(name) + "</" + name + ">"));
+ }
+ return xmlRequestArray.toArray();
+ }
+
+ /**
+ * Get the request parameter names in the correct order.
+ * Either the query parameters are named arg0, arg1, arg2 etc or else use the order
+ * from the order in the query string. Eg, the url:
+ * http://localhost:8085/HelloWorldService/sayHello2?first=petra&last=arnold&callback=foo"
+ * should invoke:
+ * sayHello2("petra", "arnold")
+ * so the parameter names should be ordered: "first", "last"
+ */
+ protected List<String> getOrderedParameterNames(ServletRequest servletRequest) {
+ List<String> orderedNames = new ArrayList<String>();
+ Set<String> parameterNames = servletRequest.getParameterMap().keySet();
+ if (parameterNames.contains("arg0")) {
+ for (int i=0; i<parameterNames.size(); i++) {
+ String name = "arg" + i;
+ if (parameterNames.contains(name)) {
+ orderedNames.add(name);
+ } else {
+ break;
+ }
+ }
+ } else {
+ final String queryString = ((HttpServletRequest)servletRequest).getQueryString();
+ SortedSet<String> sortedNames = new TreeSet<String>(new Comparator<String>(){
+ public int compare(String o1, String o2) {
+ int i = queryString.indexOf(o1);
+ int j = queryString.indexOf(o2);
+ return i - j;
+ }});
+ for (String name : parameterNames) {
+ sortedNames.add(name);
+ }
+ orderedNames.addAll(sortedNames);
+ }
+ return orderedNames;
+ }
+
+ protected static String read(HttpServletRequest servletRequest) throws IOException {
+ InputStream is = servletRequest.getInputStream();
+ BufferedReader reader = null;
+ try {
+ reader = new BufferedReader(new InputStreamReader(is));
+ StringBuffer sb = new StringBuffer();
+ String str;
+ while ((str = reader.readLine()) != null) {
+ sb.append(str);
+ }
+ return sb.toString();
+ } finally {
+ if (reader != null) {
+ reader.close();
+ }
+ }
+ }
+}
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