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/*
 * Licensed to ElasticSearch and Shay Banon under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. ElasticSearch licenses this
 * file to you 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 org.elasticsearch.common.collect;

import com.google.common.collect.ImmutableMap;

import java.util.Map;

import static com.google.common.collect.Maps.newHashMap;

/**
 *
 */
public class MapBuilder {

    public static  MapBuilder newMapBuilder() {
        return new MapBuilder();
    }

    public static  MapBuilder newMapBuilder(Map map) {
        return new MapBuilder(map);
    }

    private Map map = newHashMap();

    public MapBuilder() {
        this.map = newHashMap();
    }

    public MapBuilder(Map map) {
        this.map = newHashMap(map);
    }

    public MapBuilder putAll(Map map) {
        this.map.putAll(map);
        return this;
    }

    public MapBuilder put(K key, V value) {
        this.map.put(key, value);
        return this;
    }

    public MapBuilder remove(K key) {
        this.map.remove(key);
        return this;
    }

    public MapBuilder clear() {
        this.map.clear();
        return this;
    }

    public V get(K key) {
        return map.get(key);
    }

    public boolean containsKey(K key) {
        return map.containsKey(key);
    }

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

    public Map map() {
        return this.map;
    }

    public Map readOnlyMap() {
        return XMaps.makeReadOnly(map);
    }

    public ImmutableMap immutableMap() {
        return ImmutableMap.copyOf(map);
    }
}