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/*
* (C) 2002 Paul Wilkinson wilko@users.sourceforge.net
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/*
* ConfigTocResponse.java
* Created on 1, October 2002
*/
package com.wilko.jaim.responses;
import com.wilko.jaim.*;
import java.util.*;
/**
* A ConfigTocResponse contains the config message received from
* the toc server.
* This response is handled by the JaimConnection class, but may also be used by client programs.
* Once this event has been received, information returned from {@link JaimConnection#getGroups} is valid
*
* @author Brett Humphreys, Paul Wilkinson
*/
public class ConfigTocResponse extends TocResponse implements TocResponseHandler {
/**
* Value for mode that indicates PERMIT ALL mode
*/
public static final int PERMIT_ALL = 1;
/**
* Value for mode that indicates DENY ALL mode
*/
public static final int DENY_ALL = 2;
/**
* Value for mode that indicates PERMIT SOME mode
*/
public static final int PERMIT_SOME = 3;
/**
* Value for mode that indicates DENY SOME mode
*/
public static final int DENY_SOME = 4;
public static String RESPONSE_TYPE = "CONFIG";
/**
* The Vector of Group objects
*/
private final Vector buddyList = new Vector();
/**
* The HashMap of known buddies
*/
private HashMap buddies;
/**
* The mode for this configuration
*/
private int mode;
/**
* Returns an Enumeration of groups. Each Entry is a {@link Group}
* Each group then has an Enumeration of buddies within that group See {@link Group#enumerateBuddies}.
*
* @return list of Group elements or an empty list if none are found.
*/
public Enumeration enumerateGroups() {
return buddyList.elements();
}
/**
* Returns a Collection of groups. Each element is a {@link Group)
*
* @return the groups
*/
public Collection getGroups() {
java.util.Collection result = new Vector(buddyList);
return result;
}
/**
* Get the response type of this response. This method is used by the response dispatcher within JaimConnection
*
* @return The response type
*/
public String getResponseType() {
return RESPONSE_TYPE;
}
/**
* Parses the config string.
*/
public TocResponse parseString(String message) {
ConfigTocResponse tr = new ConfigTocResponse();
tr.doParse(message);
return (tr);
}
private void doParse(String message) {
cmd = message;
int colonIndex = message.indexOf(':');
//throw away the first word.
message = message.substring(colonIndex + 1);
buddies = new HashMap();
StringTokenizer tok = new StringTokenizer(message, "\n");
String itemType;
String itemValue;
Group currentGroup = null;
Buddy tmpBuddy;
while (tok.hasMoreTokens()) {
// Can't tokenize on both \n and space since there could be spaces
// in the name, so parsing by hand.
itemType = tok.nextToken();
int firstSpace = itemType.indexOf(' ');
itemValue = itemType.substring(firstSpace + 1);
itemType = itemType.substring(0, firstSpace);
char type = itemType.charAt(0);
switch (type) {
case 'g':
currentGroup = new Group(itemValue);
buddyList.add(currentGroup);
break;
case 'b':
tmpBuddy = getBuddy(itemValue);
//this shouldn't happen, but:
if (currentGroup == null) {
currentGroup = new Group("<unknown>");
buddyList.add(currentGroup);
}
currentGroup.addBuddy(tmpBuddy);
break;
case 'p':
tmpBuddy = getBuddy(itemValue);
tmpBuddy.setPermit(true);
break;
case 'm':
setMode(Integer.valueOf(itemValue).intValue());
break;
case 'd':
tmpBuddy = getBuddy(itemValue);
tmpBuddy.setDeny(true);
break;
}
}
}
/**
* Return an existing Buddy with the specified name or return a new buddy if the name is not known
* The buddy is added to the buddies hash if it is a new buddy
*
* @param buddyName The name of the buddy we are looking for
* @return The buddy object
*/
private Buddy getBuddy(String buddyName) {
Buddy retBuddy = (Buddy) buddies.get(buddyName);
if (retBuddy == null) {
retBuddy = new Buddy(buddyName);
buddies.put(buddyName, retBuddy);
}
return (retBuddy);
}
/**
* Gets the mode for this configuration
*
* @return mode for the configuration
*/
public int getMode() {
return mode;
}
/**
* Sets the mode for this configuration
*
* @param modeVal the string value of the mode (1-4)
*/
public void setMode(int modeVal) {
mode = modeVal;
}
/**
* Returns true if this response handler can handle the specified response.
*
* @param Response - the response string from TOC. This is the part of the response before the first ':'
* @return true if the response can be handled
*/
public boolean canHandle(String Response) {
return (Response.equalsIgnoreCase(RESPONSE_TYPE));
}
}
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