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Diffstat (limited to 'sca-java-2.x/branches/2.0-Beta3/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPDefaultWireFormatServiceInterceptor.java')
| -rw-r--r-- | sca-java-2.x/branches/2.0-Beta3/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPDefaultWireFormatServiceInterceptor.java | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/sca-java-2.x/branches/2.0-Beta3/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPDefaultWireFormatServiceInterceptor.java b/sca-java-2.x/branches/2.0-Beta3/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPDefaultWireFormatServiceInterceptor.java deleted file mode 100644 index e2ac99bfb8..0000000000 --- a/sca-java-2.x/branches/2.0-Beta3/modules/binding-http-runtime/src/main/java/org/apache/tuscany/sca/binding/http/format/HTTPDefaultWireFormatServiceInterceptor.java +++ /dev/null @@ -1,252 +0,0 @@ -/*
- * 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.StringTokenizer;
-import java.util.TreeSet;
-
-import javax.servlet.ServletRequest;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-
-import org.apache.tuscany.sca.common.http.HTTPContext;
-import org.apache.tuscany.sca.interfacedef.DataType;
-import org.apache.tuscany.sca.interfacedef.Operation;
-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;
-
-/**
- * Handles the default wire format for the http binding
- *
- * 1- determine the request and response format (xml, json, etc) from the
- * binding config or content type header and accept headers
- * - TODO: need a way to configure the databinding framework based on that format
- * 2- get the request contents from the HttpServletRequest
- * - for a post its just the request body
- * - for a get need to convert the query string into a body based on the format (xml, json, etc)
- * 3- send the request on down the wire
- * 4- set the response contents in the HttpServletResponse
- * (the databinding should already have put it in the correct format)
- *
- */
-public class HTTPDefaultWireFormatServiceInterceptor implements Interceptor {
-
- private Invoker next;
- private String jsonpCallbackName = "callback";
-
- public HTTPDefaultWireFormatServiceInterceptor(RuntimeEndpoint endpoint) {
- }
-
- @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 (IOException e) {
- throw new ServiceRuntimeException(e);
- }
- }
-
- private Message invokeRequest(Message msg) throws IOException {
- HTTPContext context = msg.getBindingContext();
- HttpServletRequest servletRequest = context.getHttpRequest();
- if ("GET".equals(servletRequest.getMethod())) {
- msg.setBody(getRequestFromQueryString(msg.getOperation(), servletRequest));
- } else {
- msg.setBody(getRequestFromPost(msg.getOperation(), servletRequest));
- }
- return msg;
- }
-
- /**
- * The data binding seems to be expecting an Object array of json strings so if the
- * post data is a json array convert that to an array of strings
- * TODO: should this be being done by the data binding framework?
- */
- private Object[] getRequestFromPost(Operation operation, HttpServletRequest servletRequest) throws IOException {
- List<Object> os = new ArrayList<Object>();
- String data = read(servletRequest);
- if (data.length() > 0) {
- if (data.startsWith("[") && data.endsWith("]")) {
- data = data.substring(1, data.length()-1);
- StringTokenizer st = new StringTokenizer(data, ",");
- while (st.hasMoreElements()) {
- os.add(st.nextElement());
- }
- } else {
- os.add(data);
- }
- }
- return os.toArray();
- }
-
- private Message invokeResponse(Message msg) throws IOException {
- HTTPContext context = msg.getBindingContext();
- HttpServletRequest servletRequest = context.getHttpRequest();
- HttpServletResponse servletResponse = context.getHttpResponse();
-
- if (msg.isFault()) {
- servletResponse.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, String.valueOf(msg.getBody()));
- } else {
- String response = getResponseAsString(servletRequest, servletResponse, msg.getBody());
- servletResponse.getOutputStream().println(response);
- }
-
- return msg;
- }
-
- /**
- * Turn the request into a string array of JSON structures. The data binding
- * layer will then convert each of the individual parameters into the appropriate
- * types for the implementation interface
- *
- * From ML thread: http://apache.markmail.org/message/ix3vvyomronellmi
- * 1- if the binding configuration contains a mapping from query parameter name to operation parameter then use that.
- * 2- if the service interface or impl uses jaxrs annotations to name the parameters then use that mapping
- * 3- if the query parameters are name arg0, arg1 etc than use those names for the mapping,
- * 4- otherwise use the order in the query string.
- */
- protected Object[] getRequestFromQueryString(Operation operation, ServletRequest servletRequest) {
-
- List<DataType> types = operation.getInputType().getLogical();
- int typesIndex = 0;
-
- List<String> jsonRequestArray = new ArrayList<String>();
-
- for (String name : getOrderedParameterNames(servletRequest)) {
- String jsonRequest = "";
- // quote string parameters so clients work in the usual javascript way
- if (typesIndex < types.size() && String.class.equals(types.get(typesIndex++).getGenericType())) {
- String x = servletRequest.getParameter(name);
- if (x.startsWith("\"") || x.startsWith("'")) {
- jsonRequest += x;
- } else {
- if (x.contains("\"")) {
- jsonRequest += "'" + x + "'";
- } else {
- jsonRequest += "\"" + x + "\"";
- }
- }
- } else {
- jsonRequest += servletRequest.getParameter(name);
- }
- jsonRequestArray.add(jsonRequest);
- }
-
- return jsonRequestArray.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) {
- // ignore system and jsonpCallbackName parameters
- if (!name.startsWith("_") && !name.equals(jsonpCallbackName)) {
- sortedNames.add(name);
- }
- }
- orderedNames.addAll(sortedNames);
- }
- return orderedNames;
- }
-
- /**
- * The databinding layer will have converted the return type into a JSON string so simply
- * add wrap it for return.
- */
- protected String getResponseAsString(HttpServletRequest servletRequest, HttpServletResponse servletResponse, Object response) {
- String jsonResponse = response == null ? "" : response.toString();
-
- if ("GET".equals(servletRequest.getMethod())) {
- // handle JSONP callback name padding
- String callback = servletRequest.getParameter(jsonpCallbackName);
- if (callback != null && callback.length() > 1) {
- jsonResponse = callback + "(" + jsonResponse + ");";
- }
- }
-
- return jsonResponse;
- }
-
- 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().trim();
- } finally {
- if (reader != null) {
- reader.close();
- }
- }
- }
-}
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