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* CruiseControl, a Continuous Integration Toolkit
* Copyright (c) 2004, ThoughtWorks, Inc.
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* Chicago, IL 60661 USA
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package net.sourceforge.cruisecontrol.bootstrappers;
import java.io.PrintWriter;
import net.sourceforge.cruisecontrol.Bootstrapper;
import net.sourceforge.cruisecontrol.CruiseControlException;
import net.sourceforge.cruisecontrol.util.Commandline;
import net.sourceforge.cruisecontrol.util.StreamPumper;
import org.apache.log4j.Logger;
/**
* Since we rely on our build.xml to handle updating our source code, there has
* always been a problem with what happens when the build.xml file itself
* changes. Previous workarounds have included writing a wrapper build.xml that
* will check out the "real" build.xml. This class is a substitute for that
* practice.
*
* The SnapshotCMBootstrapper will handle updating a single file from
* SnapshotCM before the build begins.
*
* Usage:
*
* <snapshotcmbootstrapper file="" />
*
* @author patrick.conant@hp.com
*/
public class SnapshotCMBootstrapper implements Bootstrapper {
/** enable logging for this class */
private static final Logger LOG = Logger.getLogger(SnapshotCMBootstrapper.class);
/**
* Reference to the file to bootstrap.
*/
private String filename;
public void setFile(String name) {
filename = name;
}
/**
* Update the specified file.
*/
public void bootstrap() {
Commandline commandLine = buildUpdateCommand();
if (LOG.isDebugEnabled()) {
LOG.debug("Executing: " + commandLine.toString());
}
try {
Process p = Runtime.getRuntime().exec(commandLine.getCommandline());
StreamPumper errorPumper =
new StreamPumper(p.getErrorStream(), new PrintWriter(System.err, true));
new Thread(errorPumper).start();
p.waitFor();
p.getInputStream().close();
p.getOutputStream().close();
p.getErrorStream().close();
} catch (Exception e) {
LOG.error("Error executing SnapshotCM update command", e);
}
}
public void validate() throws CruiseControlException {
if (filename == null) {
throw new CruiseControlException("'file' is required for SnapshotCMBootstrapper");
}
}
protected Commandline buildUpdateCommand() {
Commandline commandLine = new Commandline();
commandLine.setExecutable("wco");
commandLine.createArgument().setValue("-fR");
commandLine.createArgument().setValue(filename);
return commandLine;
}
}