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Common java code for Shindig

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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.shindig.protocol;

import org.apache.shindig.auth.SecurityTokenCodec;
import org.apache.shindig.common.servlet.ParameterFetcher;

import com.google.common.collect.ImmutableMap;

import javax.servlet.http.HttpServletRequest;
import java.util.Map;

/**
 * Default implementation for the GadgetDataServlet parameter fetcher. Do not change unless you have
 * a compelling need to pass more parameters into the createResponse method.
 */
public class DataServiceServletFetcher implements ParameterFetcher {

  public Map fetch(HttpServletRequest req) {
    return ImmutableMap.of(SecurityTokenCodec.SECURITY_TOKEN_NAME, req.getParameter("st"));
  }
}