public static final String FILE_PASSWORDS = "file.passwords";

    protected Map<String, String[]> metadata = new HashMap<>();

    protected String content;

    public ExtractData() {
        // nothing
    }

    public ExtractData(final String content) {
        this.content = content;
    }

    public void putValues(final String key, final String[] values) {
        metadata.put(key, values);
    }

#define Overflow 7.09782712893384e+02

DATA exprodata<>+0(SB)/8, $0.5
DATA exprodata<>+8(SB)/8, $1.0
DATA exprodata<>+16(SB)/8, $2.0
DATA exprodata<>+24(SB)/8, $1.6666666666666666667e-1
DATA exprodata<>+32(SB)/8, $4.1666666666666666667e-2
DATA exprodata<>+40(SB)/8, $8.3333333333333333333e-3
DATA exprodata<>+48(SB)/8, $1.3888888888888888889e-3
DATA exprodata<>+56(SB)/8, $1.9841269841269841270e-4
DATA exprodata<>+64(SB)/8, $2.4801587301587301587e-5

        Map<String, String> params = new HashMap<String, String>();
        params.put("resourceName", "test.odt");
        ExtractData extractData = jodExtractor.getText(in, params);
        String content = extractData.getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

        final ExtractData extractData = pdfExtractor.getText(in, null);
        final String content = extractData.getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
        assertEquals("Writer", extractData.getValues("Creator")[0]);
        assertEquals("OpenOffice.org 3.0", extractData.getValues("Producer")[0]);

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.entity.ExtractData;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.exception.ExtractException;

/**
 * @author shinsuke
 *
 */
public class FilenameExtractor extends AbstractExtractor {

    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {

        try {
            final ExtractData extractData = new ExtractData(
                    StreamUtil.stream(getStringsByXPath(document, contentXpath)).get(stream -> stream.collect(Collectors.joining(" "))));
            metadataXpathMap.entrySet().stream().forEach(e -> {
                extractData.putValues(e.getKey(), getStringsByXPath(document, e.getValue()));
            });
            return extractData;
        } finally {

            final ExtractData extractData = new ExtractData(getOutputContent(outputFile, outExt));
            if (StringUtil.isNotBlank(resourceName)) {
                extractData.putValues("resourceName", new String[] { resourceName });
            }

            return extractData;
        } catch (final IOException | OfficeException e) {

        extractor.command = getCommand(scriptFile);
        final Map<String, String> params = new HashMap<String, String>();
        params.put(ExtractData.RESOURCE_NAME_KEY, "hoge/fuga.txt");
        final ExtractData text = extractor.getText(new FileInputStream(contentFile), params);
        assertEquals(content, text.getContent());
    }

import org.codelibs.fess.crawler.entity.ExtractData;
import org.codelibs.fess.crawler.exception.CrawlerSystemException;
import org.codelibs.fess.crawler.exception.ExtractException;

/**
 * @author shinsuke
 *
 */
public class TextExtractor extends AbstractExtractor {

    protected String encoding = Constants.UTF_8;

    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {

     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            @SuppressWarnings("resource")
            final VisioTextExtractor visioTextExtractor = new VisioTextExtractor(in);
            return new ExtractData(visioTextExtractor.getText());