mq5.0-source.main.mq-broker.broker-core.src.main.java.com.sun.messaging.jmq.jmsserver.core.SelectorFilter Maven / Gradle / Ivy
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/*
* @(#)SelectorFilter.java 1.12 06/29/07
*/
package com.sun.messaging.jmq.jmsserver.core;
import com.sun.messaging.jmq.jmsserver.core.PacketReference;
import com.sun.messaging.jmq.jmsserver.core.Consumer;
import com.sun.messaging.jmq.jmsserver.Globals;
import com.sun.messaging.jmq.util.lists.Filter;
import com.sun.messaging.jmq.util.log.*;
import com.sun.messaging.jmq.io.Packet;
import java.lang.ref.*;
import com.sun.messaging.jmq.util.selector.*;
import java.util.Hashtable;
import java.util.Map;
import java.io.IOException;
public class SelectorFilter implements Filter
{
private static boolean DEBUG = false;
Selector selector = null;
String selectorstr = null;
public SelectorFilter(String selectorstr)
throws SelectorFormatException
{
this.selectorstr = selectorstr;
selector = Selector.compile(selectorstr);
}
public SelectorFilter(String selectorstr, Selector sel)
{
this.selectorstr = selectorstr;
this.selector = sel;
}
public synchronized boolean matches(Object o)
{
if (selector == null) {
return false;
}
if (o instanceof PacketReference) {
PacketReference ref = (PacketReference) o;
Map props = null;
Map headers = null;
try {
// As an optimization, only extract these if the
// selector needs them.
if (selector.usesProperties()) {
props = ref.getProperties();
}
if (selector.usesFields()) {
headers = ref.getHeaders();
}
} catch (ClassNotFoundException ex) {
// this is not a valid error
assert false : ref;
throw new RuntimeException("error with properties",
ex);
}
try {
boolean match = selector.match(props, headers);
if (DEBUG && match)
Globals.getLogger().log(Logger.DEBUG,"Match "
+ o + "against " + selector + " got " + match);
return match;
} catch (SelectorFormatException ex) {
Globals.getLogger().log(Logger.INFO,"Bad selector format, can not match against "
+ selector, ex);
return false;
}
}
assert false : " weird ";
return false;
}
public String toString() {
return "SelectorFilter["+selector+"]"+hashCode();
}
}