Examples with ContentHandlerFactory org.apache.tika.sax.ContentHandlerFactory used on opensource projects

Example 1 with ContentHandlerFactory

use of org.apache.tika.sax.ContentHandlerFactory in project tika by apache.

the class ParsingExample method recursiveParserWrapperExample.

/**
     * For documents that may contain embedded documents, it might be helpful
     * to create list of metadata objects, one for the container document and
     * one for each embedded document.  This allows easy access to both the
     * extracted content and the metadata of each embedded document.
     * Note that many document formats can contain embedded documents,
     * including traditional container formats -- zip, tar and others -- but also
     * common office document formats including: MSWord, MSExcel,
     * MSPowerPoint, RTF, PDF, MSG and several others.
     * <p>
     * The "content" format is determined by the ContentHandlerFactory, and
     * the content is stored in {@link org.apache.tika.parser.RecursiveParserWrapper#TIKA_CONTENT}
     * <p>
     * The drawback to the RecursiveParserWrapper is that it caches metadata and contents
     * in memory.  This should not be used on files whose contents are too big to be handled
     * in memory.
     *
     * @return a list of metadata object, one each for the container file and each embedded file
     * @throws IOException
     * @throws SAXException
     * @throws TikaException
     */
public List<Metadata> recursiveParserWrapperExample() throws IOException, SAXException, TikaException {
    Parser p = new AutoDetectParser();
    ContentHandlerFactory factory = new BasicContentHandlerFactory(BasicContentHandlerFactory.HANDLER_TYPE.HTML, -1);
    RecursiveParserWrapper wrapper = new RecursiveParserWrapper(p, factory);
    Metadata metadata = new Metadata();
    metadata.set(Metadata.RESOURCE_NAME_KEY, "test_recursive_embedded.docx");
    ParseContext context = new ParseContext();
    try (InputStream stream = ParsingExample.class.getResourceAsStream("test_recursive_embedded.docx")) {
        wrapper.parse(stream, new DefaultHandler(), metadata, context);
    }
    return wrapper.getMetadata();
}

Example 2 with ContentHandlerFactory

use of org.apache.tika.sax.ContentHandlerFactory in project tika by apache.

the class BasicTikaFSConsumersBuilder method build.

@Override
public ConsumersManager build(Node node, Map<String, String> runtimeAttributes, ArrayBlockingQueue<FileResource> queue) {
    //figure out if we're building a recursiveParserWrapper
    boolean recursiveParserWrapper = false;
    String recursiveParserWrapperString = runtimeAttributes.get("recursiveParserWrapper");
    if (recursiveParserWrapperString != null) {
        recursiveParserWrapper = PropsUtil.getBoolean(recursiveParserWrapperString, recursiveParserWrapper);
    } else {
        Node recursiveParserWrapperNode = node.getAttributes().getNamedItem("recursiveParserWrapper");
        if (recursiveParserWrapperNode != null) {
            recursiveParserWrapper = PropsUtil.getBoolean(recursiveParserWrapperNode.getNodeValue(), recursiveParserWrapper);
        }
    }
    //how long to let the consumersManager run on init() and shutdown()
    Long consumersManagerMaxMillis = null;
    String consumersManagerMaxMillisString = runtimeAttributes.get("consumersManagerMaxMillis");
    if (consumersManagerMaxMillisString != null) {
        consumersManagerMaxMillis = PropsUtil.getLong(consumersManagerMaxMillisString, null);
    } else {
        Node consumersManagerMaxMillisNode = node.getAttributes().getNamedItem("consumersManagerMaxMillis");
        if (consumersManagerMaxMillis == null && consumersManagerMaxMillisNode != null) {
            consumersManagerMaxMillis = PropsUtil.getLong(consumersManagerMaxMillisNode.getNodeValue(), null);
        }
    }
    TikaConfig config = null;
    String tikaConfigPath = runtimeAttributes.get("c");
    if (tikaConfigPath == null) {
        Node tikaConfigNode = node.getAttributes().getNamedItem("tikaConfig");
        if (tikaConfigNode != null) {
            tikaConfigPath = PropsUtil.getString(tikaConfigNode.getNodeValue(), null);
        }
    }
    if (tikaConfigPath != null) {
        try (InputStream is = Files.newInputStream(Paths.get(tikaConfigPath))) {
            config = new TikaConfig(is);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    } else {
        config = TikaConfig.getDefaultConfig();
    }
    List<FileResourceConsumer> consumers = new LinkedList<FileResourceConsumer>();
    int numConsumers = BatchProcessBuilder.getNumConsumers(runtimeAttributes);
    NodeList nodeList = node.getChildNodes();
    Node contentHandlerFactoryNode = null;
    Node parserFactoryNode = null;
    Node outputStreamFactoryNode = null;
    for (int i = 0; i < nodeList.getLength(); i++) {
        Node child = nodeList.item(i);
        String cn = child.getNodeName();
        if (cn.equals("parser")) {
            parserFactoryNode = child;
        } else if (cn.equals("contenthandler")) {
            contentHandlerFactoryNode = child;
        } else if (cn.equals("outputstream")) {
            outputStreamFactoryNode = child;
        }
    }
    if (contentHandlerFactoryNode == null || parserFactoryNode == null || outputStreamFactoryNode == null) {
        throw new RuntimeException("You must specify a ContentHandlerFactory, " + "a ParserFactory and an OutputStreamFactory");
    }
    ContentHandlerFactory contentHandlerFactory = getContentHandlerFactory(contentHandlerFactoryNode, runtimeAttributes);
    ParserFactory parserFactory = getParserFactory(parserFactoryNode, runtimeAttributes);
    OutputStreamFactory outputStreamFactory = getOutputStreamFactory(outputStreamFactoryNode, runtimeAttributes, contentHandlerFactory, recursiveParserWrapper);
    if (recursiveParserWrapper) {
        for (int i = 0; i < numConsumers; i++) {
            FileResourceConsumer c = new RecursiveParserWrapperFSConsumer(queue, parserFactory, contentHandlerFactory, outputStreamFactory, config);
            consumers.add(c);
        }
    } else {
        for (int i = 0; i < numConsumers; i++) {
            FileResourceConsumer c = new BasicTikaFSConsumer(queue, parserFactory, contentHandlerFactory, outputStreamFactory, config);
            consumers.add(c);
        }
    }
    ConsumersManager manager = new FSConsumersManager(consumers);
    if (consumersManagerMaxMillis != null) {
        manager.setConsumersManagerMaxMillis(consumersManagerMaxMillis);
    }
    return manager;
}