mq5.0-source.main.mq-share.src.main.java.com.sun.messaging.jmq.auth.jaas.MQDestinationPermission Maven / Gradle / Ivy
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/*
* @(#)MQDestinationPermission.java 1.5 06/27/07
*/
package com.sun.messaging.jmq.auth.jaas;
import java.util.Map;
import java.util.HashMap;
import java.util.Enumeration;
import java.util.Collections;
import java.util.StringTokenizer;
import java.io.ObjectInputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.ObjectInputStream;
import java.security.Permission;
import java.security.PermissionCollection;
/**
*
* MQ destination permission class
*/
public class MQDestinationPermission extends Permission
implements java.io.Serializable
{
private static final long serialVersionUID = -2435224016059811024L;
private final static int PRODUCE = 0x1;
private final static int CONSUME = 0x2;
private final static int BROWSE = 0x4;
private final static int NONE = 0x0;
private final static int ALL = PRODUCE|CONSUME|BROWSE;
private transient boolean wildcard = false;
private transient boolean isQueue = false;
private transient String destName = null;
private transient int mask = NONE;
private String actions = null;
/**
*
*/
public MQDestinationPermission(String name, String actions) {
super(name);
init(name, actions);
}
/**
*
*/
private void init(String name, String actions) {
if (name == null) throw new NullPointerException("name null");
if (name.trim().startsWith(PermissionFactory.DEST_QUEUE_PREFIX)) {
isQueue = true;
destName = name.trim().substring(
PermissionFactory.DEST_QUEUE_PREFIX.length()).trim();
} else if (name.trim().startsWith(PermissionFactory.DEST_TOPIC_PREFIX)) {
isQueue = false;
destName = name.trim().substring(
PermissionFactory.DEST_TOPIC_PREFIX.length()).trim();
} else {
throw new IllegalArgumentException("invalid name " + name);
}
int len = destName.length();
if (len == 1 && destName.equals("*")) wildcard = true;
if (actions == null) throw new NullPointerException("actions null");
mask = computeMask(actions);
}
public int getMask() {
return mask;
}
private int computeMask(String actions) throws IllegalArgumentException {
int mask = NONE;
StringTokenizer token = new StringTokenizer(actions, ",", false);
String t = null;
while (token.hasMoreElements()) {
t = token.nextToken().trim().toLowerCase();
int i = 0;
while (i < t.length()) {
if (!Character.isSpaceChar(t.charAt(i++))) break;
}
if (i > 0) t = t.substring(i-1);
i = t.length() -1;
while (i != -1) {
if (!Character.isSpaceChar(t.charAt(i))) break;
i--;
}
if (i < t.length()-1) t = t.substring(0, i+1);
if (t.equals(PermissionFactory.ACTION_PRODUCE)) {
mask |= PRODUCE;
} else if (t.equals(PermissionFactory.ACTION_CONSUME)) {
mask |= CONSUME;
} else if (t.equals(PermissionFactory.ACTION_BROWSE)) {
mask |= BROWSE;
}
}
if (mask == NONE) {
throw new IllegalArgumentException("invalid actions "+actions);
}
return mask;
}
/**
*
*/
public boolean implies(Permission p) {
if (!(p instanceof MQDestinationPermission)) return false;
MQDestinationPermission that = (MQDestinationPermission)p;
if (this.isQueue != that.isQueue) return false;
return ((this.mask & that.mask) == that.mask) && impliesDestName(that);
}
private boolean impliesDestName(MQDestinationPermission that) {
if (this.wildcard) return true;
if (that.wildcard) return false;
return this.destName.equals(that.destName);
}
/**
*
*/
public boolean equals(Object obj) {
if (obj == this) return true;
if (!(obj instanceof MQDestinationPermission)) return false;
if (obj.getClass() != getClass()) return false;
MQDestinationPermission that = (MQDestinationPermission)obj;
return ((this.mask == that.mask) &&
(this.isQueue == that.isQueue) &&
(this.destName.equals(that.destName)));
}
/**
*
*/
public int hashCode() {
return this.getName().hashCode();
}
/**
*
*/
public String getActions() {
if (actions != null) return actions;
StringBuffer s = new StringBuffer();
boolean comma = false;
if ((mask & PRODUCE) == PRODUCE) {
comma = true;
s.append(PermissionFactory.ACTION_PRODUCE);
}
if ((mask & CONSUME) == CONSUME) {
if (comma) s.append(',');
comma = true;
s.append(PermissionFactory.ACTION_CONSUME);
}
if ((mask & BROWSE) == BROWSE) {
if (comma) s.append(',');
comma = true;
s.append(PermissionFactory.ACTION_BROWSE);
}
return s.toString();
}
/**
*
*/
private void writeObject(ObjectOutputStream s) throws IOException {
if (actions == null) getActions();
s.defaultWriteObject();
}
/**
*
*/
private void readObject(ObjectInputStream s)
throws IOException, ClassNotFoundException {
s.defaultReadObject();
init(getName(), actions);
}
}