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/*******************************************************************************
* Copyright (c) 2008, 2009 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Red Hat Incorporated - initial API and implementation
* IBM Corporation - ongoing development
* Cloudsmith Inc - ongoing development
*******************************************************************************/
package org.eclipse.equinox.internal.p2.touchpoint.natives.actions;
import java.io.*;
import java.util.ArrayList;
import java.util.Map;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.p2.touchpoint.natives.Messages;
import org.eclipse.equinox.internal.p2.touchpoint.natives.Util;
import org.eclipse.equinox.internal.provisional.p2.engine.ProvisioningAction;
import org.eclipse.osgi.util.NLS;
public class ChmodAction extends ProvisioningAction {
private static final String ACTION_CHMOD = "chmod"; //$NON-NLS-1$
public IStatus execute(Map parameters) {
String targetDir = (String) parameters.get(ActionConstants.PARM_TARGET_DIR);
if (targetDir == null)
return Util.createError(NLS.bind(Messages.param_not_set, ActionConstants.PARM_TARGET_DIR, ACTION_CHMOD));
String targetFile = (String) parameters.get(ActionConstants.PARM_TARGET_FILE);
if (targetFile == null)
return Util.createError(NLS.bind(Messages.param_not_set, ActionConstants.PARM_TARGET_FILE, ACTION_CHMOD));
String permissions = (String) parameters.get(ActionConstants.PARM_PERMISSIONS);
if (permissions == null)
return Util.createError(NLS.bind(Messages.param_not_set, ActionConstants.PARM_PERMISSIONS, ACTION_CHMOD));
String optionsString = (String) parameters.get(ActionConstants.PARM_OPTIONS);
// Check that file exist
File probe = new File(targetDir + IPath.SEPARATOR + targetFile);
if (!probe.exists())
return Util.createError(NLS.bind(Messages.action_0_failed_file_1_doesNotExist, ACTION_CHMOD, probe.toString()));
String options[] = null;
if (optionsString != null) {
ArrayList collect = new ArrayList();
String r = optionsString.trim();
while (r.length() > 0) {
int spaceIdx = r.indexOf(' ');
if (spaceIdx < 0) {
collect.add(r);
r = ""; //$NON-NLS-1$
} else {
collect.add(r.substring(0, spaceIdx));
r = r.substring(spaceIdx + 1);
r = r.trim();
}
}
if (collect.size() > 0) {
options = new String[collect.size()];
collect.toArray(options);
}
}
chmod(targetDir, targetFile, permissions, options);
return Status.OK_STATUS;
}
public IStatus undo(Map parameters) {
//TODO: implement undo ??
return Status.OK_STATUS;
}
public void chmod(String targetDir, String targetFile, String perms, String[] options) {
Runtime r = Runtime.getRuntime();
try {
// Note: 3 is from chmod, permissions, and target
String[] args = new String[3 + (options == null ? 0 : options.length)];
int i = 0;
args[i++] = "chmod"; //$NON-NLS-1$
if (options != null) {
for (int j = 0; j < options.length; j++)
args[i++] = options[j];
}
args[i++] = perms;
args[i] = targetDir + IPath.SEPARATOR + targetFile;
Process process = r.exec(args);
readOffStream(process.getErrorStream());
readOffStream(process.getInputStream());
try {
process.waitFor();
} catch (InterruptedException e) {
// mark thread interrupted and continue
Thread.currentThread().interrupt();
}
} catch (IOException e) {
// ignore
}
}
private void readOffStream(InputStream inputStream) {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
try {
while (reader.readLine() != null) {
// do nothing
}
} catch (IOException e) {
// ignore
} finally {
try {
reader.close();
} catch (IOException e) {
// ignore
}
}
}
}
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