org.apache.usergrid.utils.HttpUtils.java Source code

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Here is the source code for org.apache.usergrid.utils.HttpUtils.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.apache.usergrid.utils;

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

import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URLEncodedUtils;

public class HttpUtils {

    public static Map<String, List<String>> parseQueryString(String queryString) {
        Map<String, List<String>> mapOfLists = new HashMap<String, List<String>>();
        if ((queryString == null) || (queryString.length() == 0)) {
            return mapOfLists;
        }
        List<NameValuePair> list = URLEncodedUtils.parse(URI.create("http://localhost/?" + queryString), "UTF-8");
        for (NameValuePair pair : list) {
            List<String> values = mapOfLists.get(pair.getName());
            if (values == null) {
                values = new ArrayList<String>();
                mapOfLists.put(pair.getName(), values);
            }
            if (pair.getValue() != null) {
                values.add(pair.getValue());
            }
        }

        return mapOfLists;
    }
}