// implements the filter-method which gives you access to important Objects
// like NutchDocument
public NutchDocument filter(
NutchDocument doc, Parse parse, Text url, CrawlDatum datum, Inlinks inlinks) {
LOG.info("-------->>>>> WE ARE IN THE INDExer-------------------");
String containsSem = "false";
containsSem = parse.getData().getMeta(WdcParser.META_CONTAINS_SEM);
// we don't have to add the triples in a separate field as they are
// already in the content field
// String triples = "";
// triples = parse.getText();
// doc.add("triples", triples);
// // check if the father contains sem data
// boolean semFather = false;
// try {
// semFather =
// Boolean.parseBoolean(datum.getMetaData().get(WdcParser.META_CONTAINS_SEM_FATHER).toString());
//
// } catch (Exception e) {
// LOG.error("CANNOT PROCESS THE FATHER SEM FIELD" + e.getMessage());
// }
// adds the new field to the document
doc.add("containsSem", containsSem);
return doc;
}
public NutchDocument filter(
NutchDocument doc, Parse parse, Text url, CrawlDatum datum, Inlinks inlinks)
throws IndexingException {
if (this.addStaticFields == true) {
for (Entry<String, String[]> entry : this.fields.entrySet()) {
doc.add(entry.getKey(), entry.getValue());
}
}
return doc;
}
/**
* The {@link RelTagIndexingFilter} filter object.
*
* @param doc The {@link NutchDocument} object
* @param url URL to be filtered for rel-tag's
* @param page {@link WebPage} object relative to the URL
* @return filtered NutchDocument
*/
@Override
public NutchDocument filter(NutchDocument doc, String url, WebPage page)
throws IndexingException {
// Check if some Rel-Tags found, possibly put there by RelTagParser
ByteBuffer bb = page.getFromMetadata(new Utf8(RelTagParser.REL_TAG));
if (bb != null) {
String[] tags = Bytes.toString(bb).split("\t");
for (int i = 0; i < tags.length; i++) {
doc.add("tag", tags[i]);
}
}
return doc;
}
public NutchDocument filter(
NutchDocument doc, Parse parse, Text url, CrawlDatum datum, Inlinks inlinks)
throws IndexingException {
Text reprUrl = (Text) datum.getMetaData().get(Nutch.WRITABLE_REPR_URL_KEY);
String reprUrlString = reprUrl != null ? reprUrl.toString() : null;
String urlString = url.toString();
String host = null;
try {
URL u;
if (reprUrlString != null) {
u = new URL(reprUrlString);
} else {
u = new URL(urlString);
}
host = u.getHost();
} catch (MalformedURLException e) {
throw new IndexingException(e);
}
if (host != null) {
doc.add("host", host);
}
doc.add("url", reprUrlString == null ? urlString : reprUrlString);
// content
String content = parse.getText();
if (MAX_CONTENT_LENGTH > -1 && content.length() > MAX_CONTENT_LENGTH) {
content = content.substring(0, MAX_CONTENT_LENGTH);
}
doc.add("content", content);
// title
String title = parse.getData().getTitle();
if (title.length() > MAX_TITLE_LENGTH) { // truncate title if needed
title = title.substring(0, MAX_TITLE_LENGTH);
}
if (title.length() > 0) {
// NUTCH-1004 Do not index empty values for title field
doc.add("title", title);
}
// add cached content/summary display policy, if available
String caching = parse.getData().getMeta(Nutch.CACHING_FORBIDDEN_KEY);
if (caching != null && !caching.equals(Nutch.CACHING_FORBIDDEN_NONE)) {
doc.add("cache", caching);
}
// add timestamp when fetched, for deduplication
doc.add("tstamp", new Date(datum.getFetchTime()));
return doc;
}