/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program 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 version 2 of the License.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.agent.promptcmd;
import gnu.getopt.Getopt;
import gnu.getopt.LongOpt;
import java.io.File;
import java.io.PrintWriter;
import java.util.Date;
import mazz.i18n.Msg;
import org.rhq.enterprise.agent.AgentMain;
import org.rhq.enterprise.agent.i18n.AgentI18NFactory;
import org.rhq.enterprise.agent.i18n.AgentI18NResourceKeys;
/**
* Allows you to peek into the agent's data directory. This also provides
* a way to delete files in the data directory and its subdirectories, allowing
* you to clean up temporary or unused data files that may be bloating the agent.
*
* @author John Mazzitelli
*/
public class ListDataPromptCommand implements AgentPromptCommand {
private static final Msg MSG = AgentI18NFactory.getMsg();
public String getPromptCommandString() {
return MSG.getMsg(AgentI18NResourceKeys.LISTDATA);
}
public boolean execute(AgentMain agent, String[] args) {
// strip the first argument, which is the name of our prompt command
String[] realArgs = new String[args.length - 1];
System.arraycopy(args, 1, realArgs, 0, args.length - 1);
processArguments(agent, realArgs);
return true;
}
public String getSyntax() {
return MSG.getMsg(AgentI18NResourceKeys.LISTDATA_SYNTAX);
}
public String getHelp() {
return MSG.getMsg(AgentI18NResourceKeys.LISTDATA_HELP);
}
public String getDetailedHelp() {
return MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DETAILED_HELP);
}
private void processArguments(AgentMain agent, String[] args) {
PrintWriter out = agent.getOut();
String sopts = "-dvr";
LongOpt[] lopts = { new LongOpt("verbose", LongOpt.NO_ARGUMENT, null, 'v'),
new LongOpt("recurse", LongOpt.NO_ARGUMENT, null, 'r'),
new LongOpt("delete", LongOpt.NO_ARGUMENT, null, 'd') };
Getopt getopt = new Getopt(getPromptCommandString(), args, sopts, lopts);
int code;
boolean verbose = false;
boolean recurse = false;
boolean delete = false;
String pathname = null;
while ((pathname == null) && (code = getopt.getopt()) != -1) {
switch (code) {
case ':':
case '?': {
out.println(MSG.getMsg(AgentI18NResourceKeys.HELP_SYNTAX_LABEL, getSyntax()));
break;
}
case 1: {
// we found the path name - stop processing arguments
pathname = getopt.getOptarg();
break;
}
case 'v': {
verbose = true;
break;
}
case 'r': {
recurse = true;
break;
}
case 'd': {
delete = true;
break;
}
}
}
if (getopt.getOptind() < args.length || pathname == null) {
// we got too many arguments on the command line
out.println(MSG.getMsg(AgentI18NResourceKeys.HELP_SYNTAX_LABEL, getSyntax()));
return;
}
// sneaky sneaky - do not allow the user to attempt to go up to parent directories
if (pathname.indexOf("..") != -1) {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DOTDOT_NOT_ALLOWED));
return;
}
// sneaky sneaky - do not allow the user to attempt to go to any absolute path
if (new File(pathname).isAbsolute()) {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_ABSOLUTE_NOT_ALLOWED));
return;
}
String dataDir = agent.getConfiguration().getDataDirectory().getAbsolutePath();
if (verbose) {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DATA_DIR, dataDir));
}
if ("bundles".equals(pathname)) {
pathname = "tmp/bundle-versions";
}
list(out, dataDir, new File(dataDir, pathname), verbose, recurse, delete);
return;
}
private void list(PrintWriter out, String dataDir, File file, boolean verbose, boolean recurse, boolean delete) {
String relativePath = getRelativePath(dataDir, file);
if (file.isFile()) {
printFileInfo(out, dataDir, file, verbose);
} else if (file.isDirectory()) {
printDirInfo(out, dataDir, file, verbose);
File[] dirFiles = file.listFiles();
if (recurse) {
for (File dirFile : dirFiles) {
list(out, dataDir, dirFile, verbose, recurse, delete);
}
}
} else {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_FILE_NOT_FOUND, relativePath));
return;
}
if (delete) {
boolean ok = file.delete();
if (ok) {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DELETED, relativePath));
} else {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DELETED_FAILED, relativePath));
}
}
}
private void printFileInfo(PrintWriter out, String dataDir, File file, boolean verbose) {
String name = getRelativePath(dataDir, file);
if (verbose) {
long filesize = file.length();
Date lastModified = new Date(file.lastModified());
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_FILE_INFO_VERBOSE, name, lastModified, filesize));
} else {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_FILE_INFO, name));
}
}
private void printDirInfo(PrintWriter out, String dataDir, File dir, boolean verbose) {
String name = getRelativePath(dataDir, dir);
if (verbose) {
int filecount = dir.listFiles().length;
Date lastModified = new Date(dir.lastModified());
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DIR_INFO_VERBOSE, name, lastModified, filecount));
} else {
out.println(MSG.getMsg(AgentI18NResourceKeys.LISTDATA_DIR_INFO, name));
}
}
private String getRelativePath(String dataDir, File file) {
try {
return file.getAbsolutePath().substring(dataDir.length());
} catch (Exception e) {
// something weird happened, just show the path
return file.getPath();
}
}
}