Mercurial > hg > Members > kono > jpf-core

comparison src/classes/gov/nasa/jpf/CachedROHttpConnection.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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1 /*
2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
4 * All rights reserved.
5 *
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0.
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package gov.nasa.jpf;
20
21 import java.io.ByteArrayInputStream;
22 import java.io.IOException;
23 import java.io.InputStream;
24 import java.net.Proxy;
25 import java.net.URL;
26
27 import sun.net.www.protocol.http.Handler;
28
29 /**
30 * this is just a very rough abstraction at this point, which only supports
31 * reading static URL contents. The data is cached for subsequent
32 * access, to avoid DOS by means of model checking
33 */
34 public class CachedROHttpConnection extends java.net.HttpURLConnection {
35
36 @Override
37 public void disconnect() {
38 //throw new UnsupportedOperationException("Not supported yet.");
39 }
40
41 @Override
42 public boolean usingProxy() {
43 return false;
44 }
45
46 @Override
47 public void connect() throws IOException {
48 //throw new UnsupportedOperationException("Not supported yet.");
49 }
50
51 String host;
52 int port;
53
54 public CachedROHttpConnection(URL u, String host, int port){
55 super(u);
56
57 this.host = host;
58 this.port = port;
59 }
60
61 public CachedROHttpConnection(URL u, Proxy p, Handler handler){
62 super(u);
63 }
64
65 public CachedROHttpConnection(URL u, Proxy p) {
66 this (u, p, new Handler());
67 }
68
69 protected CachedROHttpConnection(URL u, Handler handler) throws IOException {
70 this(u, null, handler);
71 }
72
73
74
75 private native byte[] getContents(String url);
76
77 @Override
78 public synchronized InputStream getInputStream() throws IOException {
79 byte[] data = getContents(url.toString());
80 return new ByteArrayInputStream(data);
81 }
82
83
84 }