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Android example source code file (URLTest.java)
This example Android source code file (URLTest.java) is included in the DevDaily.com
"Java Source Code
Warehouse" project. The intent of this project is to help you "Learn
Android by Example" TM.
The URLTest.java Android example source code
/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed 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 android.core;
import android.test.suitebuilder.annotation.Suppress;
import junit.framework.TestCase;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.URL;
import java.net.URLConnection;
import java.util.HashMap;
import java.util.Map;
public class URLTest extends TestCase {
private static void get(String u) throws IOException {
URL url = new URL(u);
URLConnection cn = url.openConnection();
cn.connect();
// System.out.println("Content-Type: " + cn.getContentType());
// System.out.println("Content-Length: " + cn.getContentLength());
InputStream stream = cn.getInputStream();
if (stream == null) {
throw new RuntimeException("stream is null");
}
byte[] data = new byte[1024];
stream.read(data);
// if (true) {
// System.out.print("data=");
// System.out.write(data);
// System.out.println();
// }
// System.out.println("Content-Type: " + cn.getContentType());
// System.out.print("data:");
// System.out.write(data);
// System.out.println();
assertTrue(new String(data).indexOf("<html>") >= 0);
}
@Suppress
public void testGetHTTP() throws Exception {
get("http://www.google.com");
}
@Suppress
public void testGetHTTPS() throws Exception {
get("https://www.fortify.net/cgi/ssl_2.pl");
}
/**
* Dummy HTTP server class for testing keep-alive behavior. Listens a
* single time and responds to a given number of requests on the same
* socket. Then closes the socket.
*/
private static class DummyServer implements Runnable {
private int keepAliveCount;
private Map<String, String> headers = new HashMap();
public DummyServer(int keepAliveCount) {
this.keepAliveCount = keepAliveCount;
}
public void run() {
try {
ServerSocket server = new ServerSocket(8182);
Socket socket = server.accept();
InputStream input = socket.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
try {
for (int i = 0; i < keepAliveCount; i++) {
reader.readLine();
headers.clear();
while (true) {
String header = reader.readLine();
if (header.length() == 0) {
break;
}
int colon = header.indexOf(":");
String key = header.substring(0, colon);
String value = header.substring(colon + 1).trim();
headers.put(key, value);
}
OutputStream output = socket.getOutputStream();
PrintWriter writer = new PrintWriter(output);
try {
writer.println("HTTP/1.1 200 OK");
String body = "Hello, Android world #" + i + "!";
writer.println("Content-Length: " + body.length());
writer.println("");
writer.print(body);
writer.flush();
} finally {
writer.close();
}
}
} finally {
reader.close();
}
socket.close();
server.close();
} catch (Exception ex) {
throw new RuntimeException(ex);
}
}
}
/**
* Does a request to the given URL, reads and returns the result.
*/
private String request(URL url) throws Exception {
URLConnection connection = url.openConnection();
connection.connect();
InputStream input = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
try {
return reader.readLine();
} finally {
reader.close();
}
}
/**
* Test case for HTTP keep-alive behavior.
*/
@Suppress
public void testGetKeepAlive() throws Exception {
new Thread(new DummyServer(3)).start();
Thread.sleep(100);
// We expect the request to work three times, then it fails.
URL url = new URL("http://localhost:8182");
assertEquals("Hello, Android world #0!", request(url));
assertEquals("Hello, Android world #1!", request(url));
assertEquals("Hello, Android world #2!", request(url));
try {
request(url);
fail("ConnectException expected.");
} catch (Exception ex) {
// Ok.
}
}
@Suppress
public void testUserAgentHeader() throws Exception {
DummyServer server = new DummyServer(1);
new Thread(server).start();
Thread.sleep(100);
// We expect the request to work three times, then it fails.
request(new URL("http://localhost:8182"));
String userAgent = server.headers.get("User-Agent");
assertTrue("Unexpected User-Agent: " + userAgent, userAgent.matches(
"Dalvik/[\\d.]+ \\(Linux; U; Android \\w+(;.*)?( Build/\\w+)?\\)"));
}
/**
* Regression for issue 1001814.
*/
@Suppress
public void testHttpConnectionTimeout() throws Exception {
int timeout = 5000;
HttpURLConnection cn = null;
long start = 0;
try {
start = System.currentTimeMillis();
URL url = new URL("http://123.123.123.123");
cn = (HttpURLConnection) url.openConnection();
cn.setConnectTimeout(5000);
cn.connect();
fail("should have thrown an exception");
} catch (IOException ioe) {
long delay = System.currentTimeMillis() - start;
if (Math.abs(timeout - delay) > 1000) {
fail("Timeout was not accurate. it needed " + delay +
" instead of " + timeout + "miliseconds");
}
} finally {
if (cn != null) {
cn.disconnect();
}
}
}
/**
* Regression test for issue 1158780 where using '{' and '}' in an URL threw
* an NPE. The RI accepts this URL and returns the status 404.
*/
@Suppress
public void testMalformedUrl() throws Exception {
URL url = new URL("http://www.google.com/cgi-bin/myscript?g={United+States}+Borders+Mexico+{Climate+change}+Marketing+{Automotive+industry}+News+Health+Internet");
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
int status = conn.getResponseCode();
android.util.Log.d("URLTest", "status: " + status);
}
}
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