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.core;
  
  import org.apache.solr.common.util.NamedList;
  import org.apache.solr.common.params.EventParams;
  import org.apache.solr.search.SolrIndexSearcher;
  
  /**
   */
  class AbstractSolrEventListener implements SolrEventListener {
    protected final SolrCore core;
    public AbstractSolrEventListener(SolrCore core) {
      this.core = core;
    }
    protected NamedList args;
  
    public void init(NamedList args) {
      this.args = args;
    }
  
    public void postCommit() {
      throw new UnsupportedOperationException();
    }
  
    public void newSearcher(SolrIndexSearcher newSearcher, SolrIndexSearcher currentSearcher) {
      throw new UnsupportedOperationException();
    }
  
    @Override
    public String toString() {
      return getClass().getName() + args;
    }
  
    /**
     * Add the {@link org.apache.solr.common.params.EventParams#EVENT} with either the {@link org.apache.solr.common.params.EventParams#NEW_SEARCHER}
     * or {@link org.apache.solr.common.params.EventParams#FIRST_SEARCHER} values depending on the value of currentSearcher.
     * <p/>
     * Makes a copy of NamedList and then adds the parameters.
     *
     *
     * @param currentSearcher If null, add FIRST_SEARCHER, otherwise NEW_SEARCHER
     * @param nlst The named list to add the EVENT value to
     */
    protected NamedList addEventParms(SolrIndexSearcher currentSearcher, NamedList nlst) {
      NamedList result = new NamedList();
      result.addAll(nlst);
      if (currentSearcher != null) {
        result.add(EventParams.EVENT, EventParams.NEW_SEARCHER);
      } else {
        result.add(EventParams.EVENT, EventParams.FIRST_SEARCHER);
      }
      return result;
    }
  }
  