Shell comands from a Java app

Hi
How can I run a shell command from within an Java app? For example I have a old executable sendEmail.exe on the file system and I am developing a Java GUI that should execute sendMail.exe when a user does something.
Thanks
Zeev Neumeier

Runtime.getRuntime().exec("start//your file path");

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i have a shell script (msp_restore_gui) when i run this script in the command line in a RHEL5 ,SUSE10 and Debian machine it works fine .I even tested to call it from a java program and it also worked fine but when i used the same in a J2ee application where the user when clicks the restore button in a webserver this inturn sends the request to a java file named BackupManager.java where i call the shell script.But here it fails.Waiting for your suggestions.If you want i can put the code also here

yes the script is in /usr/local/mss/tools/backup and the script (msp_restore_gui) is as follows
#!/bin/sh
TIMESTAMP=`date +%d_%b_%y-%H-%M`
touch /var/backups/mss/mss_restore_"$TIMESTAMP".log
LOGFILE="/var/backups/mss/mss_restore_"$TIMESTAMP".log"
### Explode tgz file
cd /
# Checks to be done:
# root login
# assume he passes the parameter as msp_backup_<timestamp>
# check for the existence of the .tz and fileList.txt
# Checking for the root login and if not logged on as root
# permission will be denied to execute this script
logmsg(){
echo "`date`: $*" >> $LOGFILE 2>&1
echo "$*"
#usage of this script
while [ $# -ne 0 ]
do
case $1 in
-n)
shift
ARCHIVE_NAME=`find / $ -name "$1.tz" -o -name "$1.tgz" $ 2>/dev/null`
FILE_NAME=`find / -name $1_filesList.txt 2>/dev/null`
if [ x$ARCHIVE_NAME = x -a y$FILE_NAME = y ]
then
logmsg "ERROR: Files not found, Restore cannot proceed"
usage
else
tar tvzf $ARCHIVE_NAME > /dev/null 2>&1
if [ $? -ne 0 ]
then
echo "ERROR: The tar file $ARCHIVE_NAME is not proper. Restore cannot proceed"
exit 1
else
          echo "Backedup files are present, proceeding with restore......" >> $LOGFILE 2>&1
fi
fi
usage
SKIP_CLEANUP=1
STATUS=1
exit
esac
shift
done
rm -rf ./newfile
curr_ver_file="/usr/local/mss/etc/version"
/usr/local/mss/tools/backup/check_version $curr_ver_file $FILE_NAME
ret_code=$?
echo "Exit value of check_version is $ret_code"
if [ "$ret_code" != 0 ]
then
logmsg "MSP Version not matching. Exiting from restore now...."
errormsg=`cat /usr/local/mss/temp/ver_err_mesg`
logmsg $errormsg
rm -f /usr/local/mss/temp/ver_err_mesg
exit 1
else
echo "Version check is successful"
fi
#### ShutDown MSS########
/etc/init.d/mss stop
sleep 2
### Shutdown semm
/etc/init.d/semm stop
sleep 2
rm -rf `grep -v "MSP Version:" $FILE_NAME`
logmsg "MSP restore in progress......"
tar mxvfz $ARCHIVE_NAME >> $LOGFILE
sleep 5
### Call mysql restore script
/usr/local/mss/bin/mysql_alldb_restore.sh >> $LOGFILE 2>&1
if [ $? -ne 0 ]; then
logmsg "Database restore Failed. Cannot proceed further"
exit 1 ;
else
logmsg "Database restore Succeeded."
fi
### Remove DB Dump Files
rm -f /var/lib/mysql-dumps/*
### Trigger cleanup of airprism database tables
#touch /usr/local/mss/airprism/server/config/reinitdb
### Trigger re-import of software packages
touch /usr/local/mss/swdepot/reimport
### Remove log files under the "apps" directory
find /usr/local/mss/apps -name '*.log*' | xargs rm -f
find /usr/local/mss/logs -follow -name '*[._]log*' | xargs rm -f
if [ $? -ne 0 ]; then
logmsg "MSP restore Failed. Cannot proceed further"
exit 1 ;
else
logmsg "MSP restore Succeeded."
fi
# reinstall_patch is touched so that patches are re-installed after restoring of MSP.
touch /usr/local/mss/patch/bin/reinstall_patch
##### Start MSS
logmsg "restarting MSP server "
/etc/init.d/mss start
sleep 5
### Start semm
/etc/init.d/semm start
sleep 5
logmsg "MSP server is now restarted"
my jsp page backup.jsp is as follows
<%@taglib uri="portlet.tld" prefix="uif" %>
<%@taglib uri="msp-console.tld" prefix="msp" %>
<uif:defineObjects/>
<%@page import="javax.portlet.*" %>
<%@ page import="java.util.Date" %>
<%@ page import="java.util.Vector" %>
<%@ page import="java.text.DateFormat" %>
<%@ page import="com.symbol.mss.console.admin.backup.BackupManager" %>
<%@ page import="com.symbol.mss.console.admin.system.SystemInfoPortlet" %>
<%
     String STYLE_NAME = request.getParameter("style");
     if (STYLE_NAME == null) STYLE_NAME = STYLE_DEFAULT;
     final String ua = request.getHeader("User-Agent");
     BackupManager helper = null;
     PortletSession portletSession = renderRequest.getPortletSession();
     helper = (BackupManager)portletSession.getAttribute("helper");
     if (helper == null) {
          //System.err.println("Created new BackupManager");
          helper = new BackupManager();
          portletSession.setAttribute("helper", helper);
     final BackupManager backupManager = helper;
     String action = "";
     final String backupName = renderRequest.getParameter("backupName");
     String completePath = backupManager.getBackupDir() + backupName + backupManager.getBackupFileExt();
     if (backupName != null) {
          action = "backup";
     if(backupManager.backup(backupName)) {
          SystemInfoPortlet.beginRestartMSP();
          } else {
               action = "backuperror";
     final String cmd = renderRequest.getParameter("submitButton");
final String selectedBackup = renderRequest.getParameter("selectedBackup");
int tarFileStatus =0;
String backupTarFile ="";
String backupFileList ="";
     if ("Restore".equals(cmd)) {
if (selectedBackup != null) {
     tarFileStatus = backupManager.verifyTarFile(selectedBackup);
     //backupTarFile = backupManager.getRestoreFile(Integer.parseInt(selectedBackup));
     //backupFileList = backupTarFile.substring(0, backupTarFile.lastIndexOf(backupManager.getBackupFileExt()))+"_filesList.txt";
               if (tarFileStatus == 0){
     action = "restore";
     backupManager.restore(selectedBackup);
                    SystemInfoPortlet.beginRestartMSP();
          } else {
               action = "error";
} else if ("Remove".equals(cmd)) {
backupManager.remove(Integer.parseInt(selectedBackup));
     DateFormat dateFormat = DateFormat.getDateInstance(DateFormat.SHORT);
     PortletURL restoreURL = renderResponse.createActionURL();
%>
<%@ include file="/jsp/core/constants.jspf" %>
<% if (action.length() > 0) {
     if ("backup".equals(action))
%>
     <p>The MSP Appliance has been shut down in order to create the <%=backupName %> backup file,
          and will automatically restart as soon as the file has been created.
          To continue your work, please log out of the MSP Console, wait for the appliance
          to restart, and then log back in. The amount of time you'll have to wait for the
          MSP Appliance to come back online depends on the amount of information you have
          stored in the MSP Database.</p>
     <p>The full pathname for the backup file is: <%=completePath %></p>
<%     }
     else if ("restore".equals(action))
%>
     <p>The MSP Appliance has been shut down in order to restore from the <%=backupTarFile%> backup file,
          and will automatically restart as soon as the restore is complete.
          To continue your work, please log out of the MSP Console, wait for the appliance
          to restart, and then log back in. The amount of time you'll have to wait for the
          MSP Appliance to come back online depends on the amount of information you have
          stored in the MSP Database.</p>
<%     } else if ("backuperror".equals(action)) { %>
          <p><img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> Errors occurred while taking back up of MSP. Please see the backup service log file for more details.
          </P>
<%     } else if ("error".equals(action)) {
          if (tarFileStatus == 4) { %>
               <p><img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> The backup file <%=backupTarFile%> contains errors. This backup can't be restored. Please restore a valid back up.
               </P>
          <%} else if (tarFileStatus == 3) { %>
               <p><img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> The backup file list <%=backupFileList %> is missing. This file is required to restoring backup. Please get the backup file list and proceed with restoring backup.</p>
          <%} else if (tarFileStatus == 2) { %>
               <p> <img src="images/dialogue/error_16.gif" class="icon" alt="Notify" /> The backup file <%=backupTarFile%> contains errors and the backup file list <%=backupFileList%> is missing. This backup can't be restored. </p>
          <%} %>
<%     }
} else { %>
<p><strong>Note</strong>: Both backup and restore will shut down MSP temporarily. MSP will be unable to collect data from devices, send notifications, or provide MSP Console access during this time. When the backup or restore operation is complete, MSP will come back online automatically.</p>
<h3>Backup</h3>
<form action="<%= restoreURL.toString() %>" method="post">
<p>Please provide a name for your backup. MSP will provide the date automatically in the list of backups.</p>
<p><label for="<uif:namespace />backupName">Name</label> <input type="text" name="<uif:namespace />backupName" id="<uif:namespace />backupName" size="20" maxlength="256" /> <input type="submit" name="<uif:namespace />submitButton" value="Back up now" onclick="return <uif:namespace/>validateName()"/></p>
</form>
<h3>Restore</h3>
<p>This will restore all databases (device assets, collected device data, software packages, policies, etc.) to their state as of the time the backup was made. Changes since then <em>except for backups</em> will be destroyed.</p>
<%
Vector restoreList = helper.getRestoreEntries();
Vector restoreDates = helper.getRestoreDates();
Vector restoreVersions = helper.getRestoreVersions();
Vector filesStatus = helper.getBackupFilesStatus();
%>
<% if (restoreList.size() == 0) { %>
<p>There are no backups currently available.</p>
<% } else { %>
<form action="<%= restoreURL.toString() %>" method="post">
<table class="input-radios" id="<uif:namespace />existingBackups">
<thead>
<tr>
<th></th>
<th>Name</th>
<th>Date</th>
<th>MSP Version</th>
<th>Remarks </th>
</tr>
</thead>
<tfoot>
<tr>
<td colspan="4" class="actionsOnSelected">
<input type="submit" name="<uif:namespace />submitButton" value="Restore" onclick="return confirm('This action requires MSP and all related services to be shut down. Console will be unavailable if the request is submitted. The server will restart automatically once restore has been completed.');" />
<input type="submit" name="<uif:namespace />submitButton" value="Remove" onclick="return confirm('This action will remove the backup archive. You will no longer be able to restore this backup. Continue?');" />
</td>
</tr>
</tfoot>
<tbody><%-- First one (most recent) is checked by default. Every other row has class="portlet-section-alternate". Note that each ID must be unique and must match the value of the "for" attribute on the corresponding "label" element. --%>
<%
for (int i = 0; i < restoreList.size(); i++) {
%>
<tr <%= (i % 2 == 1) ? " class=\"portlet-section-alternate\"" : "" %>>
<td><input type="radio" name="<uif:namespace />selectedBackup" value="<%= i %>" id="<uif:namespace />selectedBackup-<%= i %>" <%= (i == 0) ? "checked=\"checked\"" : "" %> /></td>
<td><label for="<uif:namespace />selectedBackup-<%= i %>"><%= restoreList.elementAt(i) %></label></td>
<td><%= dateFormat.format((Date)restoreDates.elementAt(i)) %></td>
<td><%= restoreVersions.elementAt(i) %></td>
<td><%= filesStatus.elementAt(i) %></td>
</tr>
<%
%>
</tbody>
</table>
</form>
<% } %>
<% } %>
<script type="text/javascript">
<![CDATA[//><!]]>
</script>
and my BackupManager.java is as follows where the code in bold and italic is called the restore()
//============================================================================
// Symbol Technologies P R O P R I E T A R Y S O U R C E C O D E
// C O N F I D E N T I A L
// Copyright (c) 2003 Symbol Technologies. All Rights Reserved.
// All information contained herein is the property of Symbol Technologies,
// or its Licensors, and are protected copyrights and trade secrets, and may
// be covered by U.S. patents. Any reproduction or dissemination of any
// portion of this document, of the software, or other works derived from it
// is strictly forbidden unless prior written permission is obtained from
// Symbol Technologies.
//============================================================================
package com.symbol.mss.sdf.services.backup;
import java.io.*;
import java.sql.Time;
import java.text.DateFormat;
import java.util.logging.FileHandler;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;
import java.lang.Process;
import java.util.*;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.logger.LogEnabled;
import org.apache.avalon.framework.logger.Logger;
import com.symbol.mss.sdf.admin.AdministratorService;
import com.symbol.mss.sdf.backup.*;
import com.symbol.mss.sdf.data.*;
* @author nramaiah
* Service to perform scheduled backups of the system state.
public class BackupManager implements BackupService, DataHandler,
LogEnabled, Configurable {
// MSS Home Path
private static String mssHome = System.getProperty("phoenix.home", File.separator + "usr" +
File.separator + "local" +
File.separator + "mss" +
File.separator);
// Backup related definitions
private static final String BACKUP_LIST_FILE_NAME = "conf" + File.separator + "files_to_backup.txt";
private static final String BACKED_UP_LIST_FILE_NAME_SUFFIX = "_filesList.txt";
private static final String BACKUP_LOCATION = File.separator + "var" + File.separator + "lib" +
File.separator + "mss-backups" + File.separator;
private static final String BACKUP_PARTITION = File.separator + "var" + File.separator + "lib";
private static final String VERIFY_BACKUP = File.separator + "usr" + File.separator + "local" +
                                                       File.separator + "mss" + File.separator+"tools"+
                                                       File.separator+"backup"+File.separator+"verifyBackup.sh";
// DB backup/restore related definitions
private static final String DB_DUMP_LOCATION = File.separator + "var" + File.separator +
"lib" + File.separator +
"mysql-dumps" + File.separator;
private static final String DB_BACKUP_SCRIPT = "bin" + File.separator + "mysql_alldb_backup.sh";
private static final String DB_RESTORE_SCRIPT = "bin" + File.separator + "mysql_alldb_restore.sh";
// Private variables
private AdministratorService m_admin = null;
private Logger m_logger = null;
private String backupLocation = null;
private String backupListFileName = null;
private String backupPartition = null;
private int backupPartitionLimit = 90;
private String dbDumpLocation = null;
private String dbBackupScript = null;
private String dbRestoreScript = null;
private List servicesBackupList = null;
private String tarFileExtension =".tgz";
private String errFileExtension =".err";
private int exitValue=0;
* Default Constructor
public BackupManager() {
servicesBackupList = new ArrayList();
* Set the administrator service implementation. Link established by Broker service.
* @param admin reference to an implementation of AdministratorService
public void setAdministrator(AdministratorService admin) {
m_admin = admin;
* Set the job publisher service implementation. Link established by Broker service.
* @param jobPublisher reference to an implementation of JobPublisherService
public void setJobPublisher(DataChannel jobPublisher) {
jobPublisher.subscribe(this);
* Gets the backup manager object.
* @return backup manager object
public BackupService getBackupService() {
return this;
* Service lifecycle method.
* @param logger logger object to be used by the service
public void enableLogging(Logger logger) {
m_logger = logger;
* Service lifecycle method.
* @param configuration service configuration object
public void configure(Configuration configuration) throws ConfigurationException {
// Verify MSS Home path
if (!mssHome.endsWith(File.separator))
mssHome += File.separator;
// Get the location where the backup file needs to be placed
backupLocation = configuration.getChild("BackupLocation").getValue(BACKUP_LOCATION);
// Verify backup directory path
if (!backupLocation.startsWith(File.separator))
backupLocation = mssHome + backupLocation;
if (!backupLocation.endsWith(File.separator))
backupLocation += File.separator;
// Get the file listing the files/directories to be backed up
backupListFileName = configuration.getChild("FilesList").getValue(BACKUP_LIST_FILE_NAME);
// Verify backup list file name path
if (!backupListFileName.startsWith(File.separator))
backupListFileName = mssHome + backupListFileName;
// Get the partition where the backups are kept
backupPartition = configuration.getChild("BackupPartition").getValue(BACKUP_PARTITION);
// Verify backup partition path
if (!backupPartition.startsWith(File.separator))
backupPartition = File.separator + backupPartition;
if (backupPartition.endsWith(File.separator))
backupPartition = backupPartition.substring(0, (backupPartition.length()-1));
// Get the limit on the amount of free space on the backup partition
backupPartitionLimit = configuration.getChild("BackupPartitionLimit").getValueAsInteger(backupPartitionLimit);
// Get the location where the DB dump files will be placed
dbDumpLocation = configuration.getChild("DBDumpLocation").getValue(DB_DUMP_LOCATION);
// Verify DB dump directory path
if (!dbDumpLocation.startsWith(File.separator))
dbDumpLocation = mssHome + dbDumpLocation;
if (!dbDumpLocation.endsWith(File.separator))
dbDumpLocation += File.separator;
// Get the name of DB dump backup script
dbBackupScript = configuration.getChild("DBBackupScript").getValue(DB_BACKUP_SCRIPT);
// Verify backup script path
if (!dbBackupScript.startsWith(File.separator))
dbBackupScript = mssHome + dbBackupScript;
// Get the name of DB dump restore script
dbRestoreScript = configuration.getChild("DBRestoreScript").getValue(DB_RESTORE_SCRIPT);
// Verify restore script path
if (!dbRestoreScript.startsWith(File.separator))
dbRestoreScript = mssHome + dbRestoreScript;
* Individual services can supply a list of files/directories to be backed up.
* These are files apart from the files specified in conf/files_to_backup.txt and
* will be backed up as well.
* @param files list of files/directories
public void filesToBackup(List files) {
synchronized(this) {
if (files != null) {
if (files.size() > 0) {
// Add the list contents to the current backup list
for (int i=0; i<files.size(); i++) {
String tStr = (String)files.get(i);
// Check for absolute or relative path
if (tStr.startsWith(File.separator))
servicesBackupList.add(tStr);
else
servicesBackupList.add(mssHome + tStr);
else
m_logger.info("Empty list of filenames. Nothing added.");
else
m_logger.info("Null list of filenames. Nothing added.");
* Individual services can supply a list of files/directories to be backed up.
* Specified files will be added to the file defining the list of files to be backed up.
* @param files list of files/directories
private void persistFilesToBackup(List files) {
synchronized(this) {
if (files != null) {
if (files.size() > 0) {
// Add the list of files provided to the end of file
try {
File file = new File(backupListFileName);
if ((file == null) || (!file.exists()))
file.createNewFile();
// Seek to the end of the file
RandomAccessFile rFile = new RandomAccessFile(file, "rw");
if (rFile != null) {
rFile.seek(rFile.length());
// Write the list contents to the file
for (int i=0; i<files.size(); i++) {
String tStr = (String)files.get(i);
// Check for absolute or relative path
if (tStr.startsWith(File.separator))
rFile.writeBytes(tStr + "\n");
else
rFile.writeBytes(mssHome + tStr + "\n");
else
m_logger.error("Error opening file " + backupListFileName);
rFile.close();
catch (Exception ex) {
ex.printStackTrace();
m_logger.error("Error adding entries to file " + backupListFileName, ex);
else
m_logger.info("Empty list of filenames. Nothing added.");
else
m_logger.info("Null list of filenames. Nothing added.");
* Command to be run during the backup process. Individual services can
* provide shell commands that will be executed before backing up the files.
* @param command shell command to be executed
private void runCommand(String command) {
* Creates a shell script at the specified location that will backup the
* files listed in the List passed in.
* @param scriptFileName location where the script needs to be created
* @param backupFileName name for the tar file being created
* @param backupList list of files to be backed up
private void createBackupScript(String scriptFileName, String backupFileName, ArrayList backupList) throws Exception {
// Create a new StringBuffer to build the contents to be written to the script file
StringBuffer buffer = new StringBuffer();
// Add the initial comment in the start script
buffer.append("#!/bin/sh\n" + "set -x\n\n");
// Check if the partition has enough space
buffer.append("### Check if the partition has enough space\n" +
// "diskUsed=`df -k | grep \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1`\n" +
               " diskUsed=`df -k \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1 | grep -v Use`\n" +
"echo \"Partition " + backupPartition + " is $diskUsed% used.\"\n" +
"if [ \"$diskUsed\" -lt \"" + backupPartitionLimit + "\" ]\nthen\n" +
" echo \"Starting backup...\"\n\n");
// Shutdown semmd
buffer.append(" ### Shutdown semm\n" + " /etc/init.d/semm stop\n" +
" sleep 2\n\n");
// MSP Limited release and earlier builds stop mysql DB and backup the
// /var/lib/mysql directory as it is. Starting MSP 1.0 GA release, mysql
// dump script will be integrated which will create sql scripts to
// restore the database.
// Check if mysql dump creation script exists
File mysqlDumpScript = new File(dbBackupScript);
if (mysqlDumpScript.exists()) {
// MSP 1.0 GA and later releases
// Run the script that will generate sql scripts that would re-create the DB as it is
buffer.append(" ### Call mysql dump script\n" +
" " + dbBackupScript + "\n\n");
else {
// MSP Limited release
// Add command to shutdown mysql
buffer.append(" ### Shutdown mysql\n" + " /etc/init.d/mysql stop\n\n");
// Change to root directory and create the tgz file
buffer.append(" ### Create tgz file\n" + " cd /\n");
// Build up the tar file name from the current date and time
String fileName = null;
if ((backupFileName != null) && (backupFileName.length() > 0))
fileName = backupFileName;
else {
// File name not provided by user, build one using the timestamp
Calendar cal = Calendar.getInstance();
Date date = cal.getTime();
fileName = "MSS-"
+ DateFormat.getDateInstance().format(date).replaceAll(" ", "").replaceAll(",", "")+ "-"
+ (new Time(cal.getTimeInMillis())).toString().replaceAll(":", "").substring(0,4);
String tarFileName = fileName + ".tgz";
// Get the current MSP Version
String mspVersion = getMSPVersion();
// Gather all the files to be backed up. Add them to the tar command and
// also dump them into the file maintaining the list of files being backed up
String listStr = "";
for (int i=0; i<backupList.size(); i++)
listStr += (String)backupList.get(i) + "\n";
// Dump the current MSP version and the list of files being backed up into a manifest file
String listFileName = fileName + BACKED_UP_LIST_FILE_NAME_SUFFIX;
RandomAccessFile file = new RandomAccessFile(backupLocation + listFileName, "rw");
m_logger.info("List of files/directories being backed up:\n" + listStr);
file.writeBytes("### MSP Version: " + mspVersion + " ###\n");
file.writeBytes(listStr);
file.close();
// Add the tar command to the script
buffer.append(" echo \"Creating " + backupLocation + tarFileName + "...\"\n" +
" tar cvhfz " + backupLocation + tarFileName + " `grep -v \"MSP Version:\" " +
backupLocation + listFileName + "`\n\n");
// Check if free space on the backup partition has reduced below the limit
// If enough space left, backup is retained, "mss" is made the owner of the files,
// "backup" is made the group the files belong to,
// permissions changed to be "0660" and
// backup action declared a success
// Else, backup files are deleted and declared a failure
buffer.append(" ### Check if the partition has enough space left\n" +
//" diskLeft=`df -k | grep \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1`\n" +
" diskLeft=`df -k \"" + backupPartition + "\" | awk '{print $5}' | cut -d\"%\" -f1 | grep -v Use`\n" +
" echo \"Partition " + backupPartition + " is $diskLeft% used.\"\n" +
" if [ \"$diskLeft\" -gt \"" + backupPartitionLimit + "\" ]\n" +
" then\n" +
" ### Failure\n" +
" echo \"Partition " + backupPartition + " does not have enough space.\"\n" +
" echo \"Backup " + backupLocation + tarFileName + " will be removed.\"\n" +
" rm -f " + backupLocation + fileName + "*\n" +
" echo \"Backup Failed.\"\n" +
" else\n" +
                    " tar tvzf " + backupLocation + tarFileName + " > /dev/null 2>&1\n" +
" if [ ! -s " + backupLocation + tarFileName + " -o $? -ne 0 ] \n" +
                    " then\n" +
                    " echo \"MSP Backup operation is not successful. The tar file " + backupLocation + tarFileName + " contains errors.\"\n" +
                    " echo \"Please take the backup again\"\n" +
                    "     touch "+backupLocation+fileName+".err\n" +
" else \n" +
" ### Success\n" +
" ### Change the owner, group and permissions for the backup files\n" +
" chown mss " + backupLocation + fileName + "*\n" +
" chgrp backup " + backupLocation + fileName + "*\n" +
" chmod 0660 " + backupLocation + fileName + "*\n" +
" echo \"Backup Completed.\"\n" +
" fi\n" +
" fi\n\n");
// MSP Limited release and earlier builds re-start mysql. Starting
// MSP 1.0 GA release, mysql is not stopped and so re-start is not
// needed. sql scripts created by the dump script get packed into
// the tar file and so are deleted.
// Check if mysql dump creation script exists
if (mysqlDumpScript.exists()) {
// MSP 1.0 GA and later releases
// Remove DB dump files
buffer.append(" ### Remove DB Dump Files\n" + " rm -f " + dbDumpLocation + "*\n\n");
else {
// MSP Limited release
// Start mysql
buffer.append(" ### Start mysql\n" + " /etc/init

Opening a document from a Java app

I need to open a document from my Java app. It is a .rtf file and I would like it to open with the system associated application for rtf files. How should I do that?
I have tried to figure out the Runtime.exec(), but it doesn't do what I need. I have been able to open Notepad or WordPad (oh, yes, I am on a Win XT system) by specifying them in the exec function, but I can't find info on how to let the system choose the program.
Thanks for your help.
Wayne

Take a look at the JDIC project
https://jdic.dev.java.net/
In particular the org.jdesktop.jdic.filetypes.AssociationService class
https://jdic.dev.java.net/nonav/documentation/javadoc/0.9/index.html

Accessing repository from a java app

Hi, I am trying to develop a java app that access a portal repository. I got
this error message when running the app:
java.lang.NoClassDefFoundError:
com/bea/content/manager/i18n/ManagerExceptionTextFormatter
at
com.bea.content.manager.internal.RepositoryManagerImpl.<clinit>(RepositoryMa
nagerImpl.java:31)
at
com.bea.content.manager.RepositoryManagerFactory.create(RepositoryManagerFac
tory.java:22)
at
com.bea.content.manager.RepositoryManagerFactory.connect(RepositoryManagerFa
ctory.java:35)
Anybody knows where that class is? Perhaps my approach was wrong.
tia
panji.a

Hi Greg, thanks for the confirmation. I think I'm going to access the
repository values in database directly, bypassing the repository API.
panji.a
"Gregory Smith" <[email protected]> wrote in message
news:[email protected]..
Whoops, I should have caught this in the first message.
The repository code is based upon local EJBs, so the api doesn't support
t3/rmi based access.
So, to write a non-server based application to access the repository,
you will need to construct a remoting piece which your application can
access. One good way would be to create .jws's which access the
repository code. .jws are WebServices, and I believe you can generate
client jars for them (I don't know the details about that). But, then
your client application would communicate via HTTP and SOAP to the .jws,
which would then communicate to the repository code. If you do this, you
won't need content_system.jar or wps_system.jar in your app's classpath.
Greg
Panji Aryaputra wrote:
Thanks for the prompt reply. It works, but now I'm getting another error
message: Repository configuration error
Looks like I missed something. That error comes from this piece of code:
RepositoryManagerFactory.connect()
"Gregory Smith" <[email protected]> wrote in message
news:[email protected]..
portal/lib/content_system.jar. You can just add server/lib/weblogic.jar
and portal/lib/wps_system.jar to your classpath to get most everything
portal at runtime.

Starting notepad.exe from within Java app?

Is it possible to start notepad.exe from within a java app to display a log file (for instance)?

search the forum for Runtime.getRuntime()

Executing a shell script from a java program

Hi,
I'm facing a problem while executing a shell script from a jsp page.
I'm using exec() function.
It's working fine for single statement scripts.But if the script consists of any database processing and some other processing statements,it's not returning the correct exit status of the process.
Will u please help me in this.
If there is any other ways to execute a shell script from a jsp page other than Runtime.exec().If so let me know.
Thanks in advance.

I think this shud workMaybe - but it is wrong! Why do you create aReader
and then read bytes which are turned into a String
without worrying about whether or not the bytes area
String and without worrying about the character
encoding if the bytes do represent characters and
without worrying about how many bytes wereactually
read.
Also, both you and the OP should read, digest and
follow the advice given in
http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-
traps.htmlI dont care if it is wrong. This code works for me.
We are here to solve problems not to find which post
is wrong.It is wrong! You are posting bad advice that is very wrong! It may work for you but it is wrong in general! WRONG WRONG WRONG.
If you have a solution then post it I did post a solution! The reference I gave will explain to you and the OP exactly how it should be done.
rather then
posting rude comments.I was not rude! I was explaining just some of what was wrong!

Opening a file from a java app (not applet)

My program can't find the text file I'm trying to open in my stand-alone java app. I am specifying it like this:
File filename = new File("myfile.txt");
FileReader = new FileReader(filename);
It is in the same directly as the class files. It won't find it when it's in a jar file either. I had a similar problem with an applet a lont time ago, but that turned out to be a security issue, which I assume normal apps don't have.
So, what's up with this?

If system become larger, there are duplicated files
can be found in different directories.
Using classpath may cause problem, if there are
duplicated file name.
If you are coding, you should know exact location of
the file to be opened.
"system become larger" - huh? You control the classpath on a per-app basis, not one huge monolithic classpath containing all jars/folders for all apps.
It's common, well-designed practice to use the classpath. It's bad practice to hard-code directory names and expect all deployments of the app to follow the same directory naming convention. I wouldn't want you to dictate to me where to put the file on my hard drive. I should be able to install it anywhere I want, and let it find it (via the classpath, in this instance).

From a Java app to a webpage

Hi all
Can anyone tell me how to do the following
I have a Java app written in Jbuilder 7 that the user fills in.
This is an order app. when the user sees the client they fill in all the detials of each order and saves it to there Hard drive. Now when they get back to the office they need to upload it to a webpage.
Can anyone tell me where to start looking or show me how I can do this
thanks for any comments
Craig

There is a number of free HTTP clients out there. Yuo can use one of them to post the information using http. If you are sending just a few fields, you can use just a URLConnection object.

Executing class files from a Java App dynamically

Hi!, Is there any way i can execute java .class files from my Java Application dynamically. I know that java uses Dynamic method Invocation. Is that true of class files generated using some other language compiled for the JVM.
In my case i would like to make a Web browser that interprets HTML and also java applets embeded in them. I would like to use the JRE of the platform execute the applets for me rather than writing the code for my Browser to interpret the class files.
Thanks in Advance.

You just need a custom class loader to bring these applets into your JVM.
http://developer.java.sun.com/developer/onlineTraining/Security/Fundamentals/magercises/URLClassLoader/index.html
Then you can use the methods of java.lang.Class to create an instance of such a class. As soon as you have it, you can just treat it as a regular Applet and invoke init(), stop() etc. appropriately.
If you want to execute anything else than conventional Applets, you might consider reflection to find out about methods implemented:
http://java.sun.com/docs/books/tutorial/reflect/index.html

How to start a shell script for a java app

Hi all,
I have a java application and have got a shell script to start it.
How can I start this app just from the finder?
Thanks
Confidemus

Fernardo,
the following links should help you:
- Technical Note TN2065
- Applescript and Unix commands
Mihalis.

Automatic Creation of ODBC Data Source From Within Java App

Good Day Good People :)
I was wondering if it were possible for a java application to automatically set up an ODBC data source for a JDBC connection in a windows environment.
This is the method I call to initialise a connection to my database:
public void initialiseLocalConnection ()
url = "jdbc:odbc:ICUDB";
try
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
icuCon = DriverManager.getConnection (url);
catch (Exception e)
JOptionPane.showMessageDialog (null, "Error Creating Connection to ICU Database!\n" +
"Please set up an ODBC data source pointing\n" +
"to the icudb.mdb file located in the data\n" +
"folder of the ICU directory and call the\n" +
"connection 'ICUDB'.", "Database Connection Error", JOptionPane.ERROR_MESSAGE);
Is it possible to create the ODBC data source ICUDB if it does not exist from within my application.
All information regarding the possibilty and the application of doing this would be greatly appreciated.
Kind Regards
Matt

Thank you.
During my search I for dsn-less connections I found the soloution:
url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb)};DBQ=" +
System.getProperty ("user.dir") + System.getProperty ("file.separator") +
"data" + System.getProperty ("file.separator") + "icudb.mdb";
try
Class.forName ("sun.jdbc.odbc.JdbcOdbcDriver");
icuCon = DriverManager.getConnection (url);
This works.
Thanks for the replies.
Matt :)

Compiling application (with several sub-packages) from another java app

Hi,
I'm writing my own build tool and need to be able to compile an external application (pulled from cvs, subversion, ...) from within this build tool.
Probably I need to use com.sun.tools.javac.Main.compile ?
But how do I pass classpath, output dir, etc to this class and how can I make it compile all files in all (sub)packages of the given folder ?
thanks for any help.

Never mind my previous post, I found a solution to the "the input line is too long" problem:
Putting all the files in a temporary file and then providing that file as the source to compile, like this:
javac -g:none -cp <classpath> -d classes @sourcefiles.txtwhere sourcefiles.txt is the name of the temporary file that contains the names of the source files (note the "@"-prefix)
For some reason, this is not mentioned/documented in the java docs (at least not in my docs)
Ok, so everything is compiling now, but I have one problem remaining:
For each "module" that I compile (the application I use for my tests consists of several "modules", i.e. subpackages), I get an error stating that "The system cannot find the path specified"
This seems obvious, because it is trying to write a file <package-name>\classes\<package-name>\<classname>.class
But why is it trying to write that file ?
-> Is this a known bug or something ?
Let me explain a little more...
For each compilation I do using the com.sun.tools.javac.Main.compile() method, it is giving this error.
Everything is compiling correctly, but it seems it is trying to write an extra class file to a wrong path.
Until now, it was always the first file in the row that gave the problem.
Example:
** module 1:
sources/com/example/module1/class1.java
sources/com/example/module1/class2.java
sources/com/example/module1/class3.java
sources/com/example/module1/sub1/subclass1.java
sources/com/example/module1/sub1/subclass2.java
sources/com/example/module1/sub1/subclass3.java
** module 2:
sources/com/example/module2/class1.java
sources/com/example/module2/class2.java
sources/com/example/module2/class3.java
sources/com/example/module2/sub1/subclass1.java
sources/com/example/module2/sub1/subclass2.java
sources/com/example/module2/sub1/subclass3.java
=> My application will compile module 1, do some other things with it and the module 2 and again do some other things with it.
The result would be:
Application started.
Loading configuration: OK
Compiling sources for module module1: E:\temp\_User_\project\packaging\workingdir\source\com/example/module1\class1.java:12: error while writing com.example.module1.class1: com\example\module1\classes\com\example\module1\class1.class (The system cannot find the path specified)public class class1 extends Thread {
^
Note: Some input files use or override a deprecated API.
Note: Recompile with -deprecation for details.
1 error
OK
Note: Contents of my classes directory for module1:
classes/com/example/module1/class1.class
classes/com/example/module1/class2.class
classes/com/example/module1/class3.class
classes/com/example/module1/sub1/subclass1.class
classes/com/example/module1/sub1/subclass2.class
classes/com/example/module1/sub1/subclass3.class
=> all class files are correctly compiled
Compiling sources for module module2: E:\temp\_User_\project\packaging\workingdir\source\com/example/module2\class1.java:12: error while writing com.example.module2.class1: com\example\module2\classes\com\example\module2\class1.class (The system cannot find the path specified)public class class1 extends Thread {
^
Note: Some input files use or override a deprecated API.
Note: Recompile with -deprecation for details.
1 error
OK
Application finished without errors.
Note: Contents of my classes directory for module2:
classes/com/example/module2/class1.class
classes/com/example/module2/class2.class
classes/com/example/module2/class3.class
classes/com/example/module2/sub1/subclass1.class
classes/com/example/module2/sub1/subclass2.class
classes/com/example/module2/sub1/subclass3.class
So, as you can see everything compiles as expected, but an error message is displayed related to each first file that is compiled.
==> Is this a known issue ?
==> What can I do about it ?
Suggestions welcome

Calling flex osmf app from android java app

Is there a way to use osmf as a resource/intent/library in a normal android java application?
How?
I have to user FTP in my android java code, then I have to add some parameters into the flex app/intent/lib other.
(path variable)
Thanks,
Leslie

Derek,
first of all, don't use any flavour of System.exit() to close the called frame.
You can call another "application" by calling its constructor and hiding the caller frame e.g. this.setDisplayed(false).
Pass a reference of the caller to the callee, so that when exiting the called "application" you set the caller display to true again. Hide the called "application" and call its dispose() method to gracefully exit and retrun to the caller.
To make sure the memory is released asap,make sure that you set the variable referencing the called frame to null after that.
Hope it helps.
Fran

How to pass dynamic params to Transaction iView from webdynpro java app

Hi Experts,
I am trying to call a transaction iview in PCD from my Dynpro application with a dynamic param.
Can somebody help me generating the URL for transaction iView and passing the dynamic params???
Thanks in advance
biroj...

Hi,
Generating the URL:
StringBuffer strBuff = new StringBuffer("/webdynpro/dispatcher/xyz.com/xx~xxxx~xxxxx/xxxxxApp");
strBuff.append("?");
strBuff.append("TCODE=");
strBuff.append("" + WDProtocolAdapter.getProtocolAdapter().getRequestObject().getParameter("TCODE"));
IWDWindow window = wdComponentAPI.getWindowManager().createNonModalExternalWindow(strBuff.toString(), "TCODEWindow");
window.show();
Please try the above code snippet helps you to create a TCode iView in a new window.
or
We can include URL parameters in a portal URL that calls a Web Dynpro page and these parameters can be forwarded to the otehr iVIews on the page.
Example:
http://xxxxxxxxx.com/irj/servlet/prt/portal/prtroot/com.sap.portal.appintegrator.sap.WebDynpro?System=SAP_XXXXXXXX&WebDynproNamespace=xxxxx.com&WebDynproApplication=xx~xxxx~xxxx/xxxxApp&DynamicParameter=u201DTCODE=VA02u201D
For more information Please go through this:
http://help.sap.com/saphelp_nw04s/helpdata/en/c3/235a428a1e9041e10000000a1550b0/frameset.htm
Thanks
Krishna

Shell comands from a Java app

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