package org.apache.blur.server;
/**
* 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.Closeable;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.ExecutorService;
import org.apache.blur.trace.Trace;
import org.apache.blur.trace.Tracer;
import org.apache.lucene.index.AtomicReaderContext;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.CollectionTerminatedException;
import org.apache.lucene.search.Collector;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Scorer;
import org.apache.lucene.search.Weight;
import org.apache.lucene.store.Directory;
public abstract class IndexSearcherClosable extends IndexSearcher implements Closeable {
public IndexSearcherClosable(IndexReader r, ExecutorService executor) {
super(r, executor);
}
public abstract Directory getDirectory();
@Override
public abstract void close() throws IOException;
protected void search(List<AtomicReaderContext> leaves, Weight weight, Collector collector) throws IOException {
// TODO: should we make this
// threaded...? the Collector could be sync'd?
// always use single thread:
for (AtomicReaderContext ctx : leaves) { // search each subreader
Tracer trace = Trace.trace("search - internal", Trace.param("AtomicReader", ctx.reader()));
try {
try {
collector.setNextReader(ctx);
} catch (CollectionTerminatedException e) {
// there is no doc of interest in this reader context
// continue with the following leaf
continue;
}
Scorer scorer = weight.scorer(ctx, !collector.acceptsDocsOutOfOrder(), true, ctx.reader().getLiveDocs());
if (scorer != null) {
try {
scorer.score(collector);
} catch (CollectionTerminatedException e) {
// collection was terminated prematurely
// continue with the following leaf
}
}
} finally {
trace.done();
}
}
}
}