fr.inra.maiage.bibliome.alvisnlp.bibliomefactory.modules.alvisdb.AlvisDBIndexer.java Source code

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/*
Copyright 2016, 2017 Institut National de la Recherche Agronomique
    
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 fr.inra.maiage.bibliome.alvisnlp.bibliomefactory.modules.alvisdb;

import java.io.IOException;
import java.util.logging.Logger;

import org.apache.lucene.analysis.KeywordAnalyzer;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.index.IndexWriterConfig.OpenMode;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
import fr.inra.maiage.bibliome.alvisnlp.bibliomefactory.modules.CorpusModule;
import fr.inra.maiage.bibliome.alvisnlp.bibliomefactory.modules.ResolvedObjects;
import fr.inra.maiage.bibliome.alvisnlp.bibliomefactory.modules.alvisdb.AlvisDBIndexer.AlvisDBIndexerResolvedObjects;

import fr.inra.maiage.bibliome.alvisnlp.core.corpus.Corpus;
import fr.inra.maiage.bibliome.alvisnlp.core.corpus.expressions.EvaluationContext;
import fr.inra.maiage.bibliome.alvisnlp.core.corpus.expressions.ResolverException;
import fr.inra.maiage.bibliome.alvisnlp.core.module.ModuleException;
import fr.inra.maiage.bibliome.alvisnlp.core.module.NameUsage;
import fr.inra.maiage.bibliome.alvisnlp.core.module.ProcessingContext;
import fr.inra.maiage.bibliome.alvisnlp.core.module.ProcessingException;
import fr.inra.maiage.bibliome.alvisnlp.core.module.lib.AlvisNLPModule;
import fr.inra.maiage.bibliome.alvisnlp.core.module.lib.Param;
import fr.inra.maiage.bibliome.util.files.OutputDirectory;

@AlvisNLPModule(beta = true)
public class AlvisDBIndexer extends CorpusModule<AlvisDBIndexerResolvedObjects> {
    private OutputDirectory indexDir;
    private Boolean append = false;
    private ADBElements[] elements;

    static class AlvisDBIndexerResolvedObjects extends ResolvedObjects {
        private final ADBElements.Resolved[] elements;

        AlvisDBIndexerResolvedObjects(ProcessingContext<Corpus> ctx, AlvisDBIndexer module)
                throws ResolverException {
            super(ctx, module);
            this.elements = rootResolver.resolveArray(module.elements, ADBElements.Resolved.class);
        }

        @Override
        public void collectUsedNames(NameUsage nameUsage, String defaultType) throws ModuleException {
            super.collectUsedNames(nameUsage, defaultType);
            nameUsage.collectUsedNamesArray(elements, defaultType);
        }
    }

    @Override
    public void process(ProcessingContext<Corpus> ctx, Corpus corpus) throws ModuleException {
        try (KeywordAnalyzer kwa = new KeywordAnalyzer()) {
            IndexWriterConfig writerConfig = new IndexWriterConfig(Version.LUCENE_36, kwa);
            writerConfig.setOpenMode(append ? OpenMode.CREATE_OR_APPEND : OpenMode.CREATE);
            try (Directory dir = FSDirectory.open(indexDir)) {
                try (IndexWriter writer = new IndexWriter(dir, writerConfig)) {
                    AlvisDBIndexerResolvedObjects resObj = getResolvedObjects();
                    Logger logger = getLogger(ctx);
                    EvaluationContext evalCtx = new EvaluationContext(logger);
                    for (ADBElements.Resolved ent : resObj.elements) {
                        ent.indexElements(logger, writer, evalCtx, corpus);
                    }
                }
            } catch (IOException e) {
                throw new ProcessingException(e);
            }
        }
    }

    @Override
    protected AlvisDBIndexerResolvedObjects createResolvedObjects(ProcessingContext<Corpus> ctx)
            throws ResolverException {
        return new AlvisDBIndexerResolvedObjects(ctx, this);
    }

    @Param
    public OutputDirectory getIndexDir() {
        return indexDir;
    }

    @Param
    public ADBElements[] getElements() {
        return elements;
    }

    @Param
    public Boolean getAppend() {
        return append;
    }

    public void setAppend(Boolean append) {
        this.append = append;
    }

    public void setElements(ADBElements[] elements) {
        this.elements = elements;
    }

    public void setIndexDir(OutputDirectory indexDir) {
        this.indexDir = indexDir;
    }
}