Java URI Parse parseQueryString(final URI uri, final M queryParams)

Description

Parse a URI query string and extract the params as key value pairs.

License

Apache License

Parameter

Parameter	Description
uri	with query string.
queryParams	to be populated.
M	container for the params

Exception

Parameter	Description
URISyntaxException	if a parsing exception occurs on the query string.

Return

the queryParams that has been populated.

Declaration

public static <M extends Map<String, String>> M parseQueryString(final URI uri, final M queryParams)
        throws URISyntaxException 

Method Source Code

//package com.java2s;
/*/*  w  w w . j ava  2  s .c om*/
 * Copyright 2014 - 2016 Real Logic Ltd.
 *
 * 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.
 */

import java.net.URI;
import java.net.URISyntaxException;
import java.util.Map;

public class Main {
    /**
     * Parse a URI query string and extract the params as key value pairs.
     *
     * @param uri         with query string.
     * @param queryParams to be populated.
     * @param <M> container for the params
     * @return the queryParams that has been populated.
     * @throws URISyntaxException if a parsing exception occurs on the query string.
     */
    public static <M extends Map<String, String>> M parseQueryString(final URI uri, final M queryParams)
            throws URISyntaxException {
        final String query = uri.getQuery();

        if (null != query) {
            for (final String pair : query.split("&")) {
                final String[] componentParts = pair.split("=");
                if (componentParts.length == 2) {
                    queryParams.put(componentParts[0], componentParts[1]);
                } else if (componentParts.length == 1) {
                    queryParams.put(componentParts[0], "");
                } else {
                    throw new URISyntaxException(pair, "Did not contain 1 or 2 parts");
                }
            }
        }

        return queryParams;
    }
}

Related

1. parsePorts(URI connectionURI)
2. parseQuery(String uri)
3. parseQuery(URI aURI, boolean shouldDecode)
4. parseQuery(URI uri)
5. parseQuery(URI uri)
6. parseQueryString(URI uri)
7. parseQueryString(URI uri, M queryParams)
8. parseRegionName(URI endpoint)
9. parseRegionName(URI endpoint)