content: /**
   * 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.solr.common.params;
  
  /**
   * SolrParams wrapper which acts similar to DefaultSolrParams except that
   * it "appends" the values of multi-value params from both sub instances, so
   * that all of the values are returned. 
   */
  public class AppendedSolrParams extends DefaultSolrParams {
    public AppendedSolrParams(SolrParams main, SolrParams extra) {
      super(main, extra);
    }
  
    @Override
    public String[] getParams(String param) {
      String[] main = params.getParams(param);
      String[] extra = defaults.getParams(param);
      if (null == extra || 0 == extra.length) {
        return main;
      }
      if (null == main || 0 == main.length) {
        return extra;
      }
      String[] result = new String[main.length + extra.length];
      System.arraycopy(main,0,result,0,main.length);
      System.arraycopy(extra,0,result,main.length,extra.length);
      return result;
    }
  
    @Override
    public String toString() {
      return "{main("+params+"),extra("+defaults+")}";
    }
  }
  