1/*
2 * Copyright (C) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.dumprendertree.forwarder;
18
19import java.io.BufferedReader;
20import java.io.File;
21import java.io.FileReader;
22import java.io.IOException;
23
24import android.os.Environment;
25import android.util.Log;
26
27public class ForwardService {
28
29    private ForwardServer fs8000, fs8080, fs8443;
30
31    private static ForwardService inst;
32
33    private static final String LOGTAG = "ForwardService";
34
35    private static final String DEFAULT_TEST_HOST = "android-browser-test.mtv.corp.google.com";
36
37    private static final String FORWARD_HOST_CONF =
38        Environment.getExternalStorageDirectory() + "/drt_forward_host.txt";
39
40    private ForwardService() {
41        int addr = getForwardHostAddr();
42        if (addr != -1) {
43            fs8000 = new ForwardServer(8000, addr, 8000);
44            fs8080 = new ForwardServer(8080, addr, 8080);
45            fs8443 = new ForwardServer(8443, addr, 8443);
46        }
47    }
48
49    public static ForwardService getForwardService() {
50        if (inst == null) {
51            inst = new ForwardService();
52        }
53        return inst;
54    }
55
56    public void startForwardService() {
57        try {
58            if (fs8000 != null)
59                fs8000.start();
60            if (fs8080 != null)
61                fs8080.start();
62            if (fs8443 != null)
63                fs8443.start();
64        } catch (IOException ioe) {
65            Log.w(LOGTAG, "failed to start forwarder. http tests will fail.", ioe);
66            return;
67        }
68    }
69
70    public void stopForwardService() {
71        if (fs8000 != null) {
72            fs8000.stop();
73            fs8000 = null;
74        }
75        if (fs8080 != null) {
76            fs8080.stop();
77            fs8080 = null;
78        }
79        if (fs8443 != null) {
80            fs8443.stop();
81            fs8443 = null;
82        }
83        Log.v(LOGTAG, "forwarders stopped.");
84    }
85
86    private static int getForwardHostAddr() {
87        int addr = -1;
88        String host = null;
89        File forwardHostConf = new File(FORWARD_HOST_CONF);
90        if (forwardHostConf.isFile()) {
91            BufferedReader hostReader = null;
92            try {
93                hostReader = new BufferedReader(new FileReader(forwardHostConf));
94                host = hostReader.readLine();
95                Log.v(LOGTAG, "read forward host from file: " + host);
96            } catch (IOException ioe) {
97                Log.v(LOGTAG, "cannot read forward host from file", ioe);
98            } finally {
99                if (hostReader != null) {
100                    try {
101                        hostReader.close();
102                    } catch (IOException ioe) {
103                        // burn!!!
104                    }
105                }
106            }
107        }
108        if (host == null || host.length() == 0)
109            host = DEFAULT_TEST_HOST;
110        try {
111            addr = AdbUtils.resolve(host);
112        } catch (IOException ioe) {
113            Log.e(LOGTAG, "failed to resolve server address", ioe);
114        }
115        return addr;
116    }
117}
118