@Override
protected boolean doProcess(Record record, InputStream inputStream) {
Parser parser = detectParser(record);
if (parser == null) {
return false;
}
ParseContext parseContext = new ParseContext();
parseContext.set(Locale.class, locale);
Metadata metadata = new Metadata();
for (Entry<String, Object> entry : record.getFields().entries()) {
metadata.add(entry.getKey(), entry.getValue().toString());
}
SolrContentHandler handler =
solrContentHandlerFactory.createSolrContentHandler(metadata, solrParams, schema);
try {
inputStream = TikaInputStream.get(inputStream);
ContentHandler parsingHandler = handler;
// String xpathExpr = "/xhtml:html/xhtml:body/xhtml:div/descendant:node()";
if (xpathExpr != null) {
Matcher matcher = PARSER.parse(xpathExpr);
parsingHandler = new MatchingContentHandler(parsingHandler, matcher);
}
try {
parser.parse(inputStream, parsingHandler, metadata, parseContext);
} catch (IOException e) {
throw new MorphlineRuntimeException("Cannot parse", e);
} catch (SAXException e) {
throw new MorphlineRuntimeException("Cannot parse", e);
} catch (TikaException e) {
throw new MorphlineRuntimeException("Cannot parse", e);
}
} finally {
if (inputStream != null) {
Closeables.closeQuietly(inputStream);
}
}
SolrInputDocument doc = handler.newDocument();
LOG.debug("solr doc: {}", doc);
Record outputRecord = toRecord(doc);
return getChild().process(outputRecord);
}
@Override
public void load(
SolrQueryRequest req,
SolrQueryResponse rsp,
ContentStream stream,
UpdateRequestProcessor processor)
throws Exception {
Parser parser = null;
String streamType = req.getParams().get(ExtractingParams.STREAM_TYPE, null);
if (streamType != null) {
// Cache? Parsers are lightweight to construct and thread-safe, so I'm told
MediaType mt = MediaType.parse(streamType.trim().toLowerCase(Locale.ROOT));
parser = new DefaultParser(config.getMediaTypeRegistry()).getParsers().get(mt);
} else {
parser = autoDetectParser;
}
if (parser != null) {
Metadata metadata = new Metadata();
// If you specify the resource name (the filename, roughly) with this parameter,
// then Tika can make use of it in guessing the appropriate MIME type:
String resourceName = req.getParams().get(ExtractingParams.RESOURCE_NAME, null);
if (resourceName != null) {
metadata.add(TikaMetadataKeys.RESOURCE_NAME_KEY, resourceName);
}
// Provide stream's content type as hint for auto detection
if (stream.getContentType() != null) {
metadata.add(HttpHeaders.CONTENT_TYPE, stream.getContentType());
}
InputStream inputStream = null;
try {
inputStream = stream.getStream();
metadata.add(ExtractingMetadataConstants.STREAM_NAME, stream.getName());
metadata.add(ExtractingMetadataConstants.STREAM_SOURCE_INFO, stream.getSourceInfo());
metadata.add(ExtractingMetadataConstants.STREAM_SIZE, String.valueOf(stream.getSize()));
metadata.add(ExtractingMetadataConstants.STREAM_CONTENT_TYPE, stream.getContentType());
// HtmlParser and TXTParser regard Metadata.CONTENT_ENCODING in metadata
String charset = ContentStreamBase.getCharsetFromContentType(stream.getContentType());
if (charset != null) {
metadata.add(HttpHeaders.CONTENT_ENCODING, charset);
}
String xpathExpr = params.get(ExtractingParams.XPATH_EXPRESSION);
boolean extractOnly = params.getBool(ExtractingParams.EXTRACT_ONLY, false);
SolrContentHandler handler =
factory.createSolrContentHandler(metadata, params, req.getSchema());
ContentHandler parsingHandler = handler;
StringWriter writer = null;
BaseMarkupSerializer serializer = null;
if (extractOnly == true) {
String extractFormat = params.get(ExtractingParams.EXTRACT_FORMAT, "xml");
writer = new StringWriter();
if (extractFormat.equals(TEXT_FORMAT)) {
serializer = new TextSerializer();
serializer.setOutputCharStream(writer);
serializer.setOutputFormat(new OutputFormat("Text", "UTF-8", true));
} else {
serializer = new XMLSerializer(writer, new OutputFormat("XML", "UTF-8", true));
}
if (xpathExpr != null) {
Matcher matcher = PARSER.parse(xpathExpr);
serializer
.startDocument(); // The MatchingContentHandler does not invoke startDocument. See
// http://tika.markmail.org/message/kknu3hw7argwiqin
parsingHandler = new MatchingContentHandler(serializer, matcher);
} else {
parsingHandler = serializer;
}
} else if (xpathExpr != null) {
Matcher matcher = PARSER.parse(xpathExpr);
parsingHandler = new MatchingContentHandler(handler, matcher);
} // else leave it as is
try {
// potentially use a wrapper handler for parsing, but we still need the SolrContentHandler
// for getting the document.
ParseContext context = parseContextConfig.create();
context.set(Parser.class, parser);
context.set(HtmlMapper.class, MostlyPassthroughHtmlMapper.INSTANCE);
// Password handling
RegexRulesPasswordProvider epp = new RegexRulesPasswordProvider();
String pwMapFile = params.get(ExtractingParams.PASSWORD_MAP_FILE);
if (pwMapFile != null && pwMapFile.length() > 0) {
InputStream is = req.getCore().getResourceLoader().openResource(pwMapFile);
if (is != null) {
log.debug("Password file supplied: " + pwMapFile);
epp.parse(is);
}
}
context.set(PasswordProvider.class, epp);
String resourcePassword = params.get(ExtractingParams.RESOURCE_PASSWORD);
if (resourcePassword != null) {
epp.setExplicitPassword(resourcePassword);
log.debug("Literal password supplied for file " + resourceName);
}
parser.parse(inputStream, parsingHandler, metadata, context);
} catch (TikaException e) {
if (ignoreTikaException)
log.warn(
new StringBuilder("skip extracting text due to ")
.append(e.getLocalizedMessage())
.append(". metadata=")
.append(metadata.toString())
.toString());
else throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, e);
}
if (extractOnly == false) {
addDoc(handler);
} else {
// serializer is not null, so we need to call endDoc on it if using xpath
if (xpathExpr != null) {
serializer.endDocument();
}
rsp.add(stream.getName(), writer.toString());
writer.close();
String[] names = metadata.names();
NamedList metadataNL = new NamedList();
for (int i = 0; i < names.length; i++) {
String[] vals = metadata.getValues(names[i]);
metadataNL.add(names[i], vals);
}
rsp.add(stream.getName() + "_metadata", metadataNL);
}
} catch (SAXException e) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, e);
} finally {
IOUtils.closeQuietly(inputStream);
}
} else {
throw new SolrException(
SolrException.ErrorCode.BAD_REQUEST,
"Stream type of "
+ streamType
+ " didn't match any known parsers. Please supply the "
+ ExtractingParams.STREAM_TYPE
+ " parameter.");
}
}
