com.proofpoint.hive.serde.CaseInsensitiveMap Maven / Gradle / Ivy

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/*
 * Copyright 2011 Proofpoint, Inc.
 *
 * 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.proofpoint.hive.serde;

import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;

public class CaseInsensitiveMap
        implements Map
{
    Map map = new LinkedHashMap();

    @Override
    public int size()
    {
        return map.size();
    }

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

    @Override
    public boolean containsKey(Object key)
    {
        return map.containsKey(convertKey(key));
    }

    @Override
    public boolean containsValue(Object value)
    {
        return map.containsValue(value);
    }

    @Override
    public V get(Object key)
    {
        return map.get(convertKey(key));
    }

    @Override
    public V remove(Object key)
    {
        return map.remove(convertKey(key));
    }

    @Override
    public void clear()
    {
        map.clear();
    }

    @Override
    public Set keySet()
    {
        return map.keySet();
    }

    @Override
    public Collection values()
    {
        return map.values();
    }

    @Override
    public Set> entrySet()
    {
        return map.entrySet();
    }

    @Override
    public void putAll(Map m)
    {
        for (Entry entry : m.entrySet()) {
            put(entry.getKey(), entry.getValue());
        }
    }

    @Override
    public V put(String key, V value)
    {
        return map.put(convertKey(key), value);
    }

    private static String convertKey(Object key)
    {
        return ((String) key).toLowerCase();
    }
}