Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* $Id: groups.java,v 1.8 2003/11/07 20:16:23 dfs Exp $
*
* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation", "Jakarta-Oro"
* must not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact [email protected].
*
* 5. Products derived from this software may not be called "Apache"
* or "Jakarta-Oro", nor may "Apache" or "Jakarta-Oro" appear in their
* name, without prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* .
*/
package examples;
import java.io.*;
import java.util.*;
import org.apache.oro.text.*;
import org.apache.oro.text.regex.*;
/**
* This is a sample program mimicking the Unix groups command. It assumes
* the /etc/group file exists.
*
* @version @version@
*/
public final class groups {
public static final void main(String[] args) {
int user;
MatchActionProcessor processor = new MatchActionProcessor();
final Hashtable groups = new Hashtable();
Vector users = new Vector();
Enumeration usersElements;
MatchAction action = new MatchAction() {
public void processMatch(MatchActionInfo info) {
// Add group name to hashtable entry
((Vector)groups.get(info.match.toString())).addElement(
info.fields.get(0));
}
};
if(args.length == 0) {
// No arguments assumes calling user
args = new String[1];
args[0] = System.getProperty("user.name");
}
try {
processor.setFieldSeparator(":");
for(user = 0; user < args.length; user++) {
// Screen out duplicates
if(!groups.containsKey(args[user])) {
groups.put(args[user], new Vector());
// We assume usernames contain no special characters
processor.addAction(args[user], action);
// Add username to Vector to preserve argument order when printing
users.addElement(args[user]);
}
}
} catch(MalformedPatternException e) {
e.printStackTrace();
System.exit(1);
}
try {
processor.processMatches(new FileInputStream("/etc/group"),
System.out);
} catch(IOException e) {
e.printStackTrace();
System.exit(1);
}
usersElements = users.elements();
while(usersElements.hasMoreElements()) {
String username;
Enumeration values;
username = (String)usersElements.nextElement();
values = ((Vector)groups.get(username)).elements();
System.out.print(username + " :");
while(values.hasMoreElements()) {
System.out.print(" " + values.nextElement());
}
System.out.println();
}
System.out.flush();
}
}
