org.elasticsearch.common.lucene.all.AllField Maven / Gradle / Ivy
/*
* Licensed to ElasticSearch and Shay Banon under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. ElasticSearch 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.elasticsearch.common.lucene.all;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.FieldType;
import org.elasticsearch.ElasticSearchException;
import java.io.IOException;
import java.io.Reader;
/**
*
*/
public class AllField extends Field {
private final AllEntries allEntries;
private final Analyzer analyzer;
public AllField(String name, AllEntries allEntries, Analyzer analyzer, FieldType fieldType) {
super(name, fieldType);
this.allEntries = allEntries;
this.analyzer = analyzer;
}
@Override
public String stringValue() {
if (fieldType().stored()) {
return allEntries.buildText();
}
return null;
}
@Override
public Reader readerValue() {
return null;
}
@Override
public TokenStream tokenStream(Analyzer analyzer) throws IOException {
try {
allEntries.reset(); // reset the all entries, just in case it was read already
return AllTokenStream.allTokenStream(name, allEntries, analyzer);
} catch (IOException e) {
throw new ElasticSearchException("Failed to create token stream");
}
}
}