diff options
Diffstat (limited to 'qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicParser.java')
| -rw-r--r-- | qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicParser.java | 256 |
1 files changed, 51 insertions, 205 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicParser.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicParser.java index 3e9facf412..1cb4301838 100644 --- a/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicParser.java +++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicParser.java @@ -3,9 +3,15 @@ package org.apache.qpid.server.exchange.topic; import org.apache.qpid.framing.AMQShortString; import org.apache.qpid.framing.AMQShortStringTokenizer; -import java.util.*; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.HashMap; +import java.util.HashSet; +import java.util.List; +import java.util.Map; +import java.util.Set; import java.util.concurrent.atomic.AtomicReference; -import java.io.IOException; /* * @@ -52,14 +58,43 @@ public class TopicParser } + public TopicWord getWord() + { + return _word; + } + + public boolean isSelfTransition() + { + return _selfTransition; + } + + public int getPosition() + { + return _position; + } + + public boolean isEndState() + { + return _endState; + } + + public boolean isFollowedByAnyLoop() + { + return _followedByAnyLoop; + } + + public void setFollowedByAnyLoop(boolean followedByAnyLoop) + { + _followedByAnyLoop = followedByAnyLoop; + } } private static final Position ERROR_POSITION = new Position(Integer.MAX_VALUE,null, true, false); private static class SimpleState { - Set<Position> _positions; - Map<TopicWord, SimpleState> _nextState; + private Set<Position> _positions; + private Map<TopicWord, SimpleState> _nextState; } @@ -180,11 +215,11 @@ public class TopicParser while(followedByWildcards && n<(positionCount+1)) { - if(positions[n]._selfTransition) + if(positions[n].isSelfTransition()) { break; } - else if(positions[n]._word!=TopicWord.ANY_WORD) + else if(positions[n].getWord() !=TopicWord.ANY_WORD) { followedByWildcards = false; } @@ -192,7 +227,7 @@ public class TopicParser } - positions[p]._followedByAnyLoop = followedByWildcards && (n!= positionCount+1); + positions[p].setFollowedByAnyLoop(followedByWildcards && (n!= positionCount+1)); } @@ -221,7 +256,7 @@ public class TopicParser for(Position p : simpleStates[i]._positions) { - if(p._endState) + if(p.isEndState()) { endState = true; break; @@ -267,7 +302,7 @@ public class TopicParser for(Position pos : state._positions) { - if(pos._selfTransition) + if(pos.isSelfTransition()) { Set<Position> dest = transitions.get(TopicWord.ANY_WORD); if(dest == null) @@ -278,14 +313,14 @@ public class TopicParser dest.add(pos); } - final int nextPos = pos._position + 1; + final int nextPos = pos.getPosition() + 1; Position nextPosition = nextPos == positions.length ? ERROR_POSITION : positions[nextPos]; - Set<Position> dest = transitions.get(pos._word); + Set<Position> dest = transitions.get(pos.getWord()); if(dest == null) { dest = new HashSet<Position>(); - transitions.put(pos._word,dest); + transitions.put(pos.getWord(),dest); } dest.add(nextPosition); @@ -312,7 +347,7 @@ public class TopicParser Position loopingTerminal = null; for(Position destPos : dest.getValue()) { - if(destPos._selfTransition && destPos._endState) + if(destPos.isSelfTransition() && destPos.isEndState()) { loopingTerminal = destPos; break; @@ -328,9 +363,9 @@ public class TopicParser Position anyLoop = null; for(Position destPos : dest.getValue()) { - if(destPos._followedByAnyLoop) + if(destPos.isFollowedByAnyLoop()) { - if(anyLoop == null || anyLoop._position<destPos._position) + if(anyLoop == null || anyLoop.getPosition() < destPos.getPosition()) { anyLoop = destPos; } @@ -341,7 +376,7 @@ public class TopicParser Collection<Position> removals = new ArrayList<Position>(); for(Position destPos : dest.getValue()) { - if(destPos._position < anyLoop._position) + if(destPos.getPosition() < anyLoop.getPosition()) { removals.add(destPos); } @@ -421,193 +456,4 @@ public class TopicParser } - public static void main(String[] args) - { - - printMatches("#.b.*.*.*.*.*.h.#.j.*.*.*.*.*.*.q.#.r.*.*.*.*.*.*.*.*","a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z"); - printMatches(new String[]{ - "#.a.#", - "#.b.#", - "#.c.#", - "#.d.#", - "#.e.#", - "#.f.#", - "#.g.#", - "#.h.#", - "#.i.#", - "#.j.#", - "#.k.#", - "#.l.#", - "#.m.#", - "#.n.#", - "#.o.#", - "#.p.#", - "#.q.#" - - }, "a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z"); -/* - printMatches(new String[]{ - "#.a.#", - "#.b.#", - "#.c.#", - "#.d.#", - "#.e.#", - "#.f.#", - "#.g.#", - "#.h.#", - "#.i.#", - "#.j.#", - "#.k.#", - "#.l.#", - "#.m.#", - "#.n.#", - "#.o.#", - "#.p.#", - "#.q.#", - "#.r.#", - "#.s.#", - "#.t.#", - "#.u.#", - "#.v.#", - "#.w.#", - "#.x.#", - "#.y.#", - "#.z.#" - - - },"a.b"); - - printMatches("#.b.*.*.*.*.*.h.#.j.*.*.*.*.*.p.#.r.*.*.*.*.*","a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z"); - printMatches("#.b.*.*.*.*.*.h.#.j.*.*.*.*.*.p.#.r.*.*.*.*.*.*.*.*","a.b.c.d.e.f.g.h.i.j.k.l.m.n.o.p.q.r.s.t.u.v.w.x.y.z"); - printMatches("a.#.b.#","a.b.b.b.b.b.b.b.c"); - -*/ - - printMatches("",""); - printMatches("a","a"); - printMatches("a",""); - printMatches("","a"); - printMatches("a.b","a.b"); - printMatches("a","a.b"); - printMatches("a.b","a"); - printMatches("*","a"); - printMatches("*.b","a.b"); - printMatches("*.*","a.b"); - printMatches("a.*","a.b"); - printMatches("a.*.#","a.b"); - printMatches("a.#.b","a.b"); - - printMatches("#.b","a"); - printMatches("#.b","a.b"); - printMatches("#.a.b","a.b"); - - - printMatches("#",""); - printMatches("#","a"); - printMatches("#","a.b"); - printMatches("#.#","a.b"); - printMatches("#.*","a.b"); - - printMatches("#.a.b","a.b"); - printMatches("a.b.#","a.b"); - printMatches("a.#","a.b"); - printMatches("#.*.#","a.b"); - printMatches("#.*.b.#","a.b"); - printMatches("#.a.*.#","a.b"); - printMatches("#.a.#.b.#","a.b"); - printMatches("#.*.#.*.#","a.b"); - printMatches("*.#.*.#","a.b"); - printMatches("#.*.#.*","a.b"); - - - printMatches(new String[]{"a.#.b.#","a.*.#.b.#"},"a.b.b.b.b.b.b.b.c"); - - - printMatches(new String[]{"a.b", "a.c"},"a.b"); - printMatches(new String[]{"a.#", "a.c", "#.b"},"a.b"); - printMatches(new String[]{"a.#", "a.c", "#.b", "#", "*.*"},"a.b"); - - printMatches(new String[]{"a.b.c.d.e.#", "a.b.c.d.#", "a.b.c.d.*", "a.b.c.#", "#.e", "a.*.c.d.e","#.c.*.#.*.*"},"a.b.c.d.e"); - printMatches(new String[]{"a.b.c.d.e.#", "a.b.c.d.#", "a.b.c.d.*", "a.b.c.#", "#.e", "a.*.c.d.e","#.c.*.#.*.*"},"a.b.c.d.f.g"); - - - - - } - - private static void printMatches(final String[] bindingKeys, final String routingKey) - { - TopicMatcherDFAState sm = null; - Map<TopicMatcherResult, String> resultMap = new HashMap<TopicMatcherResult, String>(); - - TopicParser parser = new TopicParser(); - - long start = System.currentTimeMillis(); - for(int i = 0; i < bindingKeys.length; i++) - { - System.out.println((System.currentTimeMillis() - start) + ":\t" + bindingKeys[i]); - TopicMatcherResult r = new TopicMatcherResult(){}; - resultMap.put(r, bindingKeys[i]); - AMQShortString bindingKeyShortString = new AMQShortString(bindingKeys[i]); - - System.err.println("====================================================="); - System.err.println("Adding binding key: " + bindingKeyShortString); - System.err.println("-----------------------------------------------------"); - - - if(i==0) - { - sm = parser.createStateMachine(bindingKeyShortString, r); - } - else - { - sm = sm.mergeStateMachines(parser.createStateMachine(bindingKeyShortString, r)); - } - System.err.println(sm.reachableStates()); - System.err.println("====================================================="); - try - { - System.in.read(); - } - catch (IOException e) - { - e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. - } - } - AMQShortString routingKeyShortString = new AMQShortString(routingKey); - - Collection<TopicMatcherResult> results = sm.parse(parser._dictionary, routingKeyShortString); - Collection<String> resultStrings = new ArrayList<String>(); - - for(TopicMatcherResult result : results) - { - resultStrings.add(resultMap.get(result)); - } - - final ArrayList<String> nonMatches = new ArrayList<String>(Arrays.asList(bindingKeys)); - nonMatches.removeAll(resultStrings); - System.out.println("\""+routingKeyShortString+"\" matched with " + resultStrings + " DID NOT MATCH with " + nonMatches); - - - } - - private static void printMatches(String bindingKey, String routingKey) - { - printMatches(new String[] { bindingKey }, routingKey); - } - - - private static boolean matches(String bindingKey, String routingKey) - { - AMQShortString bindingKeyShortString = new AMQShortString(bindingKey); - AMQShortString routingKeyShortString = new AMQShortString(routingKey); - TopicParser parser = new TopicParser(); - - final TopicMatcherResult result = new TopicMatcherResult(){}; - - TopicMatcherDFAState sm = parser.createStateMachine(bindingKeyShortString, result); - return !sm.parse(parser._dictionary,routingKeyShortString).isEmpty(); - - } - } |