001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
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008: * Development and Distribution License("CDDL") (collectively, the
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025: * The Original Software is NetBeans. The Initial Developer of the Original
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040:
041: package org.netbeans.lib.profiler.results.cpu.cct;
042:
043: import org.netbeans.lib.profiler.results.cpu.cct.nodes.CategoryCPUCCTNode;
044: import org.netbeans.lib.profiler.results.cpu.cct.nodes.MethodCPUCCTNode;
045: import org.netbeans.lib.profiler.results.cpu.cct.nodes.ThreadCPUCCTNode;
046: import org.netbeans.lib.profiler.results.cpu.marking.HierarchicalMark;
047: import org.netbeans.lib.profiler.results.cpu.marking.Mark;
048: import java.util.HashSet;
049: import java.util.Iterator;
050: import java.util.Set;
051: import java.util.Stack;
052: import java.util.logging.Level;
053: import java.util.logging.Logger;
054:
055: /**
056: *
057: * @author Jaroslav Bachorik
058: */
059: public final class CCTResultsFilter extends CPUCCTVisitorAdapter {
060: //~ Inner Interfaces ---------------------------------------------------------------------------------------------------------
061:
062: public static interface Evaluator {
063: //~ Methods --------------------------------------------------------------------------------------------------------------
064:
065: boolean evaluate(Mark categoryMark);
066: }
067:
068: //~ Static fields/initializers -----------------------------------------------------------------------------------------------
069:
070: private static final Logger LOGGER = Logger
071: .getLogger(CCTResultsFilter.class.getName());
072:
073: //~ Instance fields ----------------------------------------------------------------------------------------------------------
074:
075: private Set /*<Evaluator>*/evaluators = null;
076: private Stack passFlagStack;
077: private boolean passingFilter;
078:
079: //~ Constructors -------------------------------------------------------------------------------------------------------------
080:
081: /** Creates a new instance of CategoryFilter */
082: public CCTResultsFilter() {
083: evaluators = new HashSet /*<Evaluator>*/();
084: passFlagStack = new Stack();
085: doReset();
086: }
087:
088: //~ Methods ------------------------------------------------------------------------------------------------------------------
089:
090: public void addEvaluator(Evaluator evaluator) {
091: evaluators.add(evaluator);
092: }
093:
094: public synchronized boolean passesFilter() {
095: return passingFilter;
096: }
097:
098: public void removeAllEvaluators() {
099: evaluators.clear();
100: }
101:
102: public void removeEvaluator(Evaluator evaluator) {
103: evaluators.remove(evaluator);
104: }
105:
106: public void reset() {
107: doReset();
108: }
109:
110: public void visit(ThreadCPUCCTNode node) {
111: LOGGER.finest("visiting thread node");
112: passFlagStack.push(Boolean.valueOf(passingFilter));
113: passingFilter = true;
114:
115: for (Iterator iter = evaluators.iterator(); iter.hasNext();) {
116: Evaluator evaluator = (Evaluator) iter.next();
117: passingFilter &= evaluator
118: .evaluate(HierarchicalMark.DEFAULT);
119: }
120:
121: LOGGER.finest("Evaluator result: " + passingFilter);
122: super .visit(node);
123: }
124:
125: public void visit(CategoryCPUCCTNode node) {
126: if (LOGGER.isLoggable(Level.FINEST)) {
127: LOGGER.finest("Entering category "
128: + node.getMark().getDescription()); // NOI18N
129: }
130:
131: passFlagStack.push(Boolean.valueOf(passingFilter));
132: passingFilter = true;
133:
134: for (Iterator iter = evaluators.iterator(); iter.hasNext();) {
135: Evaluator evaluator = (Evaluator) iter.next();
136: passingFilter &= evaluator.evaluate(node.getMark());
137: }
138: }
139:
140: public void visitPost(ThreadCPUCCTNode node) {
141: super .visitPost(node);
142:
143: if (!passFlagStack.isEmpty()) {
144: passingFilter = ((Boolean) passFlagStack.pop())
145: .booleanValue();
146: }
147: }
148:
149: public void visitPost(CategoryCPUCCTNode node) {
150: if (LOGGER.isLoggable(Level.FINEST)) {
151: LOGGER.finest("Leaving category "
152: + node.getMark().getDescription()); // NOI18N
153: }
154:
155: if (!passFlagStack.isEmpty()) {
156: passingFilter = ((Boolean) passFlagStack.pop())
157: .booleanValue();
158: }
159: }
160:
161: private void doReset() {
162: passingFilter = false;
163: passFlagStack.clear();
164: }
165: }
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