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/**
 *       Copyright 2010 Newcastle University
 *
 *          http://research.ncl.ac.uk/smart/
 *
 * 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.oltu.oauth2.common.parameters;

import java.util.Map;

import org.apache.oltu.oauth2.common.OAuth;
import org.apache.oltu.oauth2.common.exception.OAuthSystemException;
import org.apache.oltu.oauth2.common.message.OAuthMessage;
import org.apache.oltu.oauth2.common.utils.OAuthUtils;

public class FragmentParametersApplier implements OAuthParametersApplier {

    public OAuthMessage applyOAuthParameters(OAuthMessage message, Map params) throws OAuthSystemException {

        String messageUrl = message.getLocationUri();
        if (messageUrl != null) {
            StringBuilder url = new StringBuilder(messageUrl);

            if (params.containsKey(OAuth.OAUTH_REFRESH_TOKEN)) {
                params.remove(OAuth.OAUTH_REFRESH_TOKEN);
            }

            String fragmentQuery = OAuthUtils.format(params.entrySet(), "UTF-8");

            if (!OAuthUtils.isEmpty(fragmentQuery)) {
                if (params.size() > 0) {
                        url.append("#").append(fragmentQuery);
                }
            }
            message.setLocationUri(url.toString());
        }
        return message;
    }
}