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/*
This file is part of GNUnet.
(C) 2011, 2012 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
package org.gnunet.testing;
import org.gnunet.util.Configuration;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
/**
* Handle to a GNUnet subsystem that has been started for testing purposes.
*
* @author Florian Dold
*/
public class TestingSubsystem {
private static final Logger logger = LoggerFactory
.getLogger(TestingSubsystem.class);
private Process p;
private BufferedReader reader;
private OutputStreamWriter writer;
private Configuration cfg;
public Configuration getConfiguration() {
return cfg;
}
public TestingSubsystem(String service) {
try {
p = Runtime.getRuntime().exec(new String[]{"gnunet-testing-run-service", "-s", service});
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
writer = new OutputStreamWriter(p.getOutputStream());
String started;
try {
started = reader.readLine();
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
if (!started.equals("ok")) {
throw new TestingSetup.SetupException("could not start service ('" + started + "')");
}
String cfgFileName;
try {
cfgFileName = reader.readLine();
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
cfg = new Configuration();
cfg.parse(cfgFileName);
try {
if (p.getErrorStream().available() != 0) {
throw new TestingSetup.SetupException("error starting service");
}
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
}
public void destroy() {
try {
writer.write("q\n");
writer.flush();
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
String line;
try {
line = reader.readLine();
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
if (!line.equals("bye")) {
throw new TestingSetup.SetupException("service not destroyed correctly");
}
System.out.println("read bye");
try {
p.waitFor();
} catch (InterruptedException e) {
throw new TestingSetup.SetupException(e);
}
if (p.exitValue() != 0) {
throw new TestingSetup.SetupException("gnunet-testing-run-service exit value unsuccessful");
}
}
public void restart() {
try {
writer.write("r\n");
writer.flush();
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
String response;
logger.debug("waiting for gnunet-testing-run-service to respond to restart");
try {
response = reader.readLine();
} catch (IOException e) {
throw new TestingSetup.SetupException(e);
}
if (!response.equals("restarted")) {
throw new TestingSetup.SetupException("wrapper did not cooperate");
}
}
}
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