/*
 * Licensed to Elasticsearch 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.rest;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.HashMap;

/**
 *
 */
public abstract class AbstractRestResponse implements RestResponse {

    Map<String, List<String>> customHeaders;

    @Override
    public byte[] prefixContent() {
        return null;
    }

    @Override
    public int prefixContentLength() {
        return -1;
    }

    @Override
    public int prefixContentOffset() {
        return 0;
    }

    @Override
    public byte[] suffixContent() {
        return null;
    }

    @Override
    public int suffixContentLength() {
        return -1;
    }

    @Override
    public int suffixContentOffset() {
        return 0;
    }

    @Override
    public void addHeader(String name, String value) {
        if (customHeaders == null) {
            customHeaders = new HashMap<String, List<String>>(2);
        }
        List<String> header = customHeaders.get(name);
        if (header == null) {
            header = new ArrayList<String>();
            customHeaders.put(name, header);
        }
        header.add(value);
    }

    @Override
    public Map<String, List<String>> getHeaders() {
        return customHeaders;
    }
}