net.sf.lucis.core.impl.DefaultLucisSearcher.java Source code

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Here is the source code for net.sf.lucis.core.impl.DefaultLucisSearcher.java

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/*
 * Copyright (C) the original author or authors.
 *
 * Licensed 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 net.sf.lucis.core.impl;

import java.io.IOException;

import net.sf.derquinse.lucis.SearchException;
import net.sf.lucis.core.LucisSearcher;

import org.apache.lucene.document.Document;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.search.Collector;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.TopFieldDocs;

import com.google.common.base.Preconditions;
import com.google.common.io.Closeables;

/**
 * Default LucisSearcher implementation.
 * @author Andres Rodriguez
 */
public final class DefaultLucisSearcher implements LucisSearcher {
    /** Index reader. */
    private final IndexReader reader;
    /** Index searcher. */
    private final IndexSearcher searcher;

    DefaultLucisSearcher(IndexReader reader) {
        this.reader = Preconditions.checkNotNull(reader, "The index reader must be provided");
        this.searcher = new IndexSearcher(reader);
    }

    public final Document doc(int i) {
        try {
            return searcher.doc(i);
        } catch (CorruptIndexException e) {
            throw new SearchException(e);
        } catch (IOException e) {
            throw new SearchException(e);
        }
    }

    /*
     * (non-Javadoc)
     * @see net.sf.lucis.core.LucisSearcher#rewrite(org.apache.lucene.search.Query)
     */
    public final Query rewrite(Query query) {
        try {
            return searcher.rewrite(query);
        } catch (CorruptIndexException e) {
            throw new SearchException(e);
        } catch (IOException e) {
            throw new SearchException(e);
        }
    }

    public final void search(Query query, Filter filter, Collector results) {
        try {
            searcher.search(query, filter, results);
        } catch (IOException e) {
            throw new SearchException(e);
        }
    }

    public final TopDocs search(Query query, Filter filter, int n) {
        try {
            return searcher.search(query, filter, n);
        } catch (IOException e) {
            throw new SearchException(e);
        }
    }

    public final TopFieldDocs search(Query query, Filter filter, int n, Sort sort) {
        try {
            return searcher.search(query, filter, n, sort);
        } catch (IOException e) {
            throw new SearchException(e);
        }
    }

    public void close() {
        try {
            Closeables.close(searcher, true);
            Closeables.close(reader, true);
        } catch (IOException e) {
            // TODO
        }
    }
}