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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.framework.jdk.core.type;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map.Entry;
import java.util.Set;
/**
* @author Ryan D. Brooks
*/
public class CountingMap<K> {
private final HashMap<K, MutableInteger> countingMap;
public CountingMap(int initialCapacity) {
countingMap = new HashMap<K, MutableInteger>(initialCapacity);
}
public CountingMap() {
countingMap = new HashMap<K, MutableInteger>();
}
public int get(K key) {
MutableInteger count = countingMap.get(key);
if (count == null) {
return 0;
}
return count.getValue();
}
public boolean contains(K key) {
return countingMap.containsKey(key);
}
public void put(K key) {
MutableInteger count = countingMap.get(key);
if (count == null) {
countingMap.put(key, new MutableInteger(1));
} else {
count.getValueAndInc();
}
}
public void put(K key, int byAmt) {
MutableInteger count = countingMap.get(key);
if (count == null) {
countingMap.put(key, new MutableInteger(byAmt));
} else {
count.getValueAndInc(byAmt);
}
}
public void put(Collection<K> keys) {
for (K key : keys) {
put(key);
}
}
public Set<Entry<K, MutableInteger>> getCounts() {
return countingMap.entrySet();
}
public void clear() {
countingMap.clear();
}
}
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