org.mule.el.context.AbstractMapContext.java Source code

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Here is the source code for org.mule.el.context.AbstractMapContext.java

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/*
 * $Id$
 * --------------------------------------------------------------------------------------
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package org.mule.el.context;

import org.mule.api.MuleRuntimeException;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.apache.commons.collections.keyvalue.DefaultMapEntry;

public abstract class AbstractMapContext<K, V> implements Map<K, V> {

    public void putAll(Map<? extends K, ? extends V> m) {
        for (Map.Entry<? extends K, ? extends V> entry : m.entrySet()) {
            put(entry.getKey(), entry.getValue());
        }
    }

    @Override
    public void clear() {
        for (K key : keySet()) {
            try {
                remove(key);
            } catch (Exception e) {
                throw new MuleRuntimeException(e);
            }
        }
    }

    public int size() {
        return keySet().size();
    }

    public boolean isEmpty() {
        return keySet().isEmpty();
    }

    @Override
    public boolean containsKey(Object key) {
        return keySet().contains(key);
    }

    @Override
    public Collection<V> values() {
        List<V> values = new ArrayList<V>(size());
        for (K key : keySet()) {
            values.add(get(key));
        }
        return values;
    }

    @SuppressWarnings("unchecked")
    @Override
    public Set<java.util.Map.Entry<K, V>> entrySet() {
        Set<java.util.Map.Entry<K, V>> entrySet = new HashSet<java.util.Map.Entry<K, V>>();
        for (K key : keySet()) {
            entrySet.add(new DefaultMapEntry(key, get(key)));
        }
        return entrySet;
    }

    @Override
    public boolean containsValue(Object value) {
        for (K key : keySet()) {
            if (value.equals(get(key))) {
                return true;
            }
        }
        return false;
    }

}