| /* |
| * 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.response.transform; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.apache.solr.common.SolrDocument; |
| import org.apache.solr.response.ResultContext; |
| |
| /** |
| * Transform a document before it gets sent out |
| * |
| * |
| */ |
| public class DocTransformers extends DocTransformer |
| { |
| final List<DocTransformer> children = new ArrayList<>(); |
| |
| @Override |
| public String getName() |
| { |
| StringBuilder str = new StringBuilder(); |
| str.append( "Transformers[" ); |
| Iterator<DocTransformer> iter = children.iterator(); |
| while( iter.hasNext() ) { |
| str.append( iter.next().getName() ); |
| if( iter.hasNext() ) { |
| str.append( "," ); |
| } |
| } |
| str.append( "]" ); |
| return str.toString(); |
| } |
| |
| public void addTransformer( DocTransformer a ) { |
| children.add( a ); |
| } |
| |
| public int size() |
| { |
| return children.size(); |
| } |
| |
| public DocTransformer getTransformer( int idx ) |
| { |
| return children.get( idx ); |
| } |
| |
| @Override |
| public void setContext( ResultContext context ) { |
| for( DocTransformer a : children ) { |
| a.setContext( context ); |
| } |
| } |
| |
| @Override |
| public void transform(SolrDocument doc, int docid, float score) throws IOException { |
| for( DocTransformer a : children ) { |
| a.transform( doc, docid, score); |
| } |
| } |
| |
| @Override |
| public void transform(SolrDocument doc, int docid) throws IOException { |
| for( DocTransformer a : children ) { |
| a.transform( doc, docid); |
| } |
| } |
| |
| /** Returns true if and only if at least 1 child transformer returns true */ |
| @Override |
| public boolean needsSolrIndexSearcher() { |
| for( DocTransformer kid : children ) { |
| if (kid.needsSolrIndexSearcher()) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } |