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/*
* Copyright 2000-2009 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.debugger.ui.impl.watch;
import com.sun.jdi.Method;
import java.util.HashMap;
import java.util.Map;
/**
* @author Eugene Zhuravlev
* Date: Dec 13, 2006
*/
public class MethodsTracker {
private final Map<Method, Integer> myMethodToOccurrenceMap = new HashMap<Method, Integer>();
public final class MethodOccurrence {
private final Method myMethod;
private final int myIndex;
private MethodOccurrence(Method method, int index) {
myMethod = method;
myIndex = index;
}
public Method getMethod() {
return myMethod;
}
public int getIndex() {
return getOccurrenceCount(myMethod) - myIndex;
}
public boolean isRecursive() {
return getOccurrenceCount(myMethod) > 1;
}
}
public MethodOccurrence getMethodOccurrence(Method method) {
return new MethodOccurrence(method, assignOccurrenceIndex(method));
}
private int getOccurrenceCount(Method method) {
if (method == null) {
return 0;
}
final Integer integer = myMethodToOccurrenceMap.get(method);
return integer != null? integer.intValue(): 0;
}
private int assignOccurrenceIndex(Method method) {
if (method == null) {
return 0;
}
final int count = getOccurrenceCount(method);
myMethodToOccurrenceMap.put(method, count + 1);
return count;
}
}
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