1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* 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.provider;
import java.io.BufferedReader;
import java.io.CharArrayWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.tuscany.sca.assembly.Binding;
import org.apache.tuscany.sca.binding.http.HTTPBindingContext;
import org.apache.tuscany.sca.invocation.Invoker;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.MessageFactory;
public class HTTPRRBListenerServlet extends HttpServlet {
private static final long serialVersionUID = 6688524143716091739L;
transient private Binding binding;
transient private Invoker bindingInvoker;
transient private MessageFactory messageFactory;
/**
* Constructs a new HTTPServiceListenerServlet.
*/
public HTTPRRBListenerServlet(Binding binding, Invoker bindingInvoker, MessageFactory messageFactory) {
this.binding = binding;
this.bindingInvoker = bindingInvoker;
this.messageFactory = messageFactory;
}
public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// Decode using the charset in the request if it exists otherwise
// use UTF-8 as this is what all browser implementations use.
// The JSON-RPC-Java JavaScript client is ASCII clean so it
// although here we can correctly handle data from other clients
// that do not escape non ASCII data
String charset = request.getCharacterEncoding();
if (charset == null) {
charset = "UTF-8";
}
BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(), charset));
// Read the request
CharArrayWriter data = new CharArrayWriter();
char[] buf = new char[4096];
int ret;
while ((ret = in.read(buf, 0, 4096)) != -1) {
data.write(buf, 0, ret);
}
HTTPBindingContext bindingContext = new HTTPBindingContext();
bindingContext.setHttpRequest(request);
bindingContext.setHttpResponse(response);
// Dispatch the service interaction to the service invoker
Message requestMessage = messageFactory.createMessage();
requestMessage.setBindingContext(bindingContext);
requestMessage.setBody(new Object[]{data});
Message responseMessage = bindingInvoker.invoke(requestMessage);
// return response to client
if (responseMessage.isFault()) {
// Turn a fault into an exception
//throw new ServletException((Throwable)responseMessage.getBody());
Throwable e = (Throwable)responseMessage.getBody();
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.toString());
} else {
byte[] bout;
bout = responseMessage.<Object>getBody().toString().getBytes("UTF-8");
response.getOutputStream().write(bout);
response.getOutputStream().flush();
response.getOutputStream().close();
}
}
}
|
