Move running the query into its own method.
[rhynodge.git] / src / main / java / net / pterodactylus / rhynodge / queries / HttpQuery.java
1 /*
2  * Rhynodge - HttpQuery.java - Copyright © 2013 David Roden
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
17
18 package net.pterodactylus.rhynodge.queries;
19
20 import java.io.IOException;
21 import java.io.InputStreamReader;
22 import java.util.concurrent.TimeUnit;
23
24 import net.pterodactylus.rhynodge.Query;
25 import net.pterodactylus.rhynodge.State;
26 import net.pterodactylus.rhynodge.states.FailedState;
27 import net.pterodactylus.rhynodge.states.HttpState;
28
29 import org.apache.http.HttpEntity;
30 import org.apache.http.HttpResponse;
31 import org.apache.http.HttpStatus;
32 import org.apache.http.client.methods.HttpGet;
33 import org.apache.http.client.protocol.ResponseContentEncoding;
34 import org.apache.http.impl.client.DefaultHttpClient;
35 import org.apache.http.params.HttpConnectionParams;
36 import org.apache.http.util.EntityUtils;
37
38 import com.google.common.io.Closeables;
39
40 /**
41  * {@link Query} that performs an HTTP GET request to a fixed uri.
42  *
43  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
44  */
45 public class HttpQuery implements Query {
46
47         /** The uri to request. */
48         private final String uri;
49
50         /**
51          * Creates a new HTTP query.
52          *
53          * @param uri
54          *            The uri to request
55          */
56         public HttpQuery(String uri) {
57                 this.uri = uri;
58         }
59
60         //
61         // QUERY METHODS
62         //
63
64         /**
65          * {@inheritDoc}
66          */
67         @Override
68         @SuppressWarnings("deprecation")
69         public State state() {
70                 DefaultHttpClient httpClient = new DefaultHttpClient();
71                 httpClient.addResponseInterceptor(new ResponseContentEncoding());
72                 HttpGet get = new HttpGet(uri);
73
74                 InputStreamReader inputStreamReader = null;
75                 try {
76                         /* make request. */
77                         get.addHeader("User-Agent", "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Ubuntu/12.04 Chromium/20.0.1132.47 Chrome/20.0.1132.47 Safari/536.11");
78                         HttpConnectionParams.setConnectionTimeout(get.getParams(), (int) TimeUnit.SECONDS.toMillis(300));
79                         HttpConnectionParams.setSoTimeout(get.getParams(), (int) TimeUnit.SECONDS.toMillis(300));
80                         HttpResponse response = httpClient.execute(get);
81                         if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) {
82                                 return new FailedState();
83                         }
84                         HttpEntity entity = response.getEntity();
85
86                         /* yay, done! */
87                         return new HttpState(uri, response.getStatusLine().getStatusCode(), entity.getContentType().getValue(), EntityUtils.toByteArray(entity));
88
89                 } catch (IOException ioe1) {
90                         return new FailedState(ioe1);
91                 } finally {
92                         Closeables.closeQuietly(inputStreamReader);
93                 }
94         }
95
96 }