package org.apache.lucene.index;
/**
* 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.
*/
import java.io.IOException;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
/** This is a DocFieldConsumer that inverts each field,
* separately, from a Document, and accepts a
* InvertedTermsConsumer to process those terms. */
final class DocInverter extends DocFieldConsumer {
final InvertedDocConsumer consumer;
final InvertedDocEndConsumer endConsumer;
public DocInverter(InvertedDocConsumer consumer, InvertedDocEndConsumer endConsumer) {
this.consumer = consumer;
this.endConsumer = endConsumer;
}
@Override
void setFieldInfos(FieldInfos fieldInfos) {
super.setFieldInfos(fieldInfos);
consumer.setFieldInfos(fieldInfos);
endConsumer.setFieldInfos(fieldInfos);
}
@Override
void flush(Map<DocFieldConsumerPerThread, Collection<DocFieldConsumerPerField>> threadsAndFields, SegmentWriteState state) throws IOException {
Map<InvertedDocConsumerPerThread,Collection<InvertedDocConsumerPerField>> childThreadsAndFields = new HashMap<InvertedDocConsumerPerThread,Collection<InvertedDocConsumerPerField>>();
Map<InvertedDocEndConsumerPerThread,Collection<InvertedDocEndConsumerPerField>> endChildThreadsAndFields = new HashMap<InvertedDocEndConsumerPerThread,Collection<InvertedDocEndConsumerPerField>>();
for (Map.Entry<DocFieldConsumerPerThread,Collection<DocFieldConsumerPerField>> entry : threadsAndFields.entrySet() ) {
DocInverterPerThread perThread = (DocInverterPerThread) entry.getKey();
Collection<InvertedDocConsumerPerField> childFields = new HashSet<InvertedDocConsumerPerField>();
Collection<InvertedDocEndConsumerPerField> endChildFields = new HashSet<InvertedDocEndConsumerPerField>();
for (final DocFieldConsumerPerField field: entry.getValue() ) {
DocInverterPerField perField = (DocInverterPerField) field;
childFields.add(perField.consumer);
endChildFields.add(perField.endConsumer);
}
childThreadsAndFields.put(perThread.consumer, childFields);
endChildThreadsAndFields.put(perThread.endConsumer, endChildFields);
}
consumer.flush(childThreadsAndFields, state);
endConsumer.flush(endChildThreadsAndFields, state);
}
@Override
void abort() {
try {
consumer.abort();
} finally {
endConsumer.abort();
}
}
@Override
public boolean freeRAM() {
return consumer.freeRAM();
}
@Override
public DocFieldConsumerPerThread addThread(DocFieldProcessorPerThread docFieldProcessorPerThread) {
return new DocInverterPerThread(docFieldProcessorPerThread, this);
}
}