Copyright (c) 2000, 2015 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
/*******************************************************************************
 * Copyright (c) 2000, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.jface.text.source;


import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.jface.text.Position;


Internal implementation of IAnnotationMap. 
Since:
3.0/**
 * Internal implementation of {@link org.eclipse.jface.text.source.IAnnotationMap}.
 *
 * @since 3.0
 */
class AnnotationMap implements IAnnotationMap {

	
The lock object used to synchronize the operations explicitly defined by
IAnnotationMap
/**
	 * The lock object used to synchronize the operations explicitly defined by
	 * <code>IAnnotationMap</code>
	 */
	private Object fLockObject;
	
The internal lock object used if fLockObject is null.
Since:
3.2/**
	 * The internal lock object used if <code>fLockObject</code> is <code>null</code>.
	 * @since 3.2
	 */
	private final Object fInternalLockObject= new Object();

	
The map holding the annotations /** The map holding the annotations */
	private Map<Annotation, Position> fInternalMap;

	
Creates a new annotation map with the given capacity.
Params:
capacity – the capacity/**
	 * Creates a new annotation map with the given capacity.
	 *
	 * @param capacity the capacity
	 */
	public AnnotationMap(int capacity) {
		fInternalMap= new HashMap<>(capacity);
	}

	@Override
	public synchronized void setLockObject(Object lockObject) {
		fLockObject= lockObject;
	}

	@Override
	public synchronized Object getLockObject() {
		if (fLockObject == null)
			return fInternalLockObject;
		return fLockObject;
	}

	@Override
	public Iterator<Position> valuesIterator() {
		synchronized (getLockObject()) {
			return new ArrayList<>(fInternalMap.values()).iterator();
		}
	}

	@Override
	public Iterator<Annotation> keySetIterator() {
		synchronized (getLockObject()) {
			return new ArrayList<>(fInternalMap.keySet()).iterator();
		}
	}

	@Override
	public boolean containsKey(Object annotation) {
		synchronized (getLockObject()) {
			return fInternalMap.containsKey(annotation);
		}
	}

	@Override
	public Position put(Annotation annotation, Position position) {
		synchronized (getLockObject()) {
			return fInternalMap.put(annotation, position);
		}
	}

	@Override
	public Position get(Object annotation) {
		synchronized (getLockObject()) {
			return fInternalMap.get(annotation);
		}
	}

	@Override
	public void clear() {
		synchronized (getLockObject()) {
			fInternalMap.clear();
		}
	}

	@Override
	public Position remove(Object annotation) {
		synchronized (getLockObject()) {
			return fInternalMap.remove(annotation);
		}
	}

	@Override
	public int size() {
		synchronized (getLockObject()) {
			return fInternalMap.size();
		}
	}

	@Override
	public boolean isEmpty() {
		synchronized (getLockObject()) {
			return fInternalMap.isEmpty();
		}
	}

	@Override
	public boolean containsValue(Object value) {
		synchronized(getLockObject()) {
			return fInternalMap.containsValue(value);
		}
	}

	@Override
	public void putAll(Map<? extends Annotation, ? extends Position> map) {
		synchronized (getLockObject()) {
			fInternalMap.putAll(map);
		}
	}

	@Override
	public Set<Entry<Annotation, Position>> entrySet() {
		synchronized (getLockObject()) {
			return fInternalMap.entrySet();
		}
	}

	@Override
	public Set<Annotation> keySet() {
		synchronized (getLockObject()) {
			return fInternalMap.keySet();
		}
	}

	@Override
	public Collection<Position> values() {
		synchronized (getLockObject()) {
			return fInternalMap.values();
		}
	}
}