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/**
 * 
 */
package uk.bl.wa.analyser.payload;

/*
 * #%L
 * warc-indexer
 * %%
 * Copyright (C) 2013 - 2018 The webarchive-discovery project contributors
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 2 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import java.io.InputStream;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.parser.AbstractParser;
import org.archive.io.ArchiveRecordHeader;

import uk.bl.wa.solr.SolrRecord;

/**
 * @author anj
 *
 */
public abstract class AbstractPayloadAnalyser {
    private static Log log = LogFactory.getLog( AbstractPayloadAnalyser.class );

    public abstract void analyse(ArchiveRecordHeader header, InputStream tikainput, SolrRecord solr);

    protected class ParseRunner implements Runnable {
        AbstractParser parser;
        Metadata metadata;
        InputStream input;
        private SolrRecord solr;

        public ParseRunner( AbstractParser parser, InputStream tikainput, Metadata metadata, SolrRecord solr ) {
            this.parser = parser;
            this.metadata = metadata;
            this.input = tikainput;
            this.solr = solr;
        }

        @Override
        public void run() {
            try {
                input.reset();
                parser.parse( input, null, metadata, null );
            } catch( Exception e ) {
                log.error( parser.getClass().getName()+".parse(): " + e.getMessage() );
                // Also record as a Solr PARSE_ERROR
                solr.addParseException("when parsing with "
                        + parser.getClass().getName(), e);
            }
        }
    }
    
}