예제 #1
0
  private void outputSummary(String baseUrl, Set fetched, Set toCrawl, long elapsedTime) {
    int fetchCount = fetched.size();
    outputMessage(
        "\n\nSummary for starting Url: " + baseUrl + " and depth: " + m_crawlDepth,
        TEST_SUMMARY_MESSAGE);
    outputMessage(
        "\nUrls fetched: " + fetchCount + "    Urls extracted: " + m_extracted.size(),
        PLAIN_MESSAGE);

    outputMessage("\nDepth  Fetched  Parsed  New URLs", PLAIN_MESSAGE);
    for (int depth = 1; depth <= m_crawlDepth; depth++) {
      PrintfFormat pf = new PrintfFormat("%5d  %7d  %6d  %8d");
      Integer[] args =
          new Integer[] {
            new Integer(depth),
            new Integer(depth_fetched[depth - 1]),
            new Integer(depth_parsed[depth - 1]),
            new Integer(depth_incl[depth - 1]),
          };
      String s = pf.sprintf(args);
      outputMessage(s, PLAIN_MESSAGE);
    }

    outputMessage("\nRemaining unfetched: " + toCrawl.size(), PLAIN_MESSAGE);
    if (false) {
      for (Iterator iter = toCrawl.iterator(); iter.hasNext(); ) {
        String url = (String) iter.next();
        outputMessage(url, PLAIN_MESSAGE);
      }
    }
    long secs = elapsedTime / Constants.SECOND;
    long fetchRate = 0;
    if (secs > 0) {
      fetchRate = fetchCount * 60 * Constants.SECOND / elapsedTime;
    }
    outputMessage(
        "\nElapsed Time: " + secs + " secs." + "    Fetch Rate: " + fetchRate + " p/m",
        PLAIN_MESSAGE);
  }
예제 #2
0
  protected CIProperties makeCIProperties(ArchiveRecordHeader elementHeader) throws IOException {
    CIProperties ret = new CIProperties();
    Set elementHeaderFieldKeys = elementHeader.getHeaderFieldKeys();
    for (Iterator i = elementHeaderFieldKeys.iterator(); i.hasNext(); ) {
      String key = (String) i.next();
      try {

        Object valueObject = elementHeader.getHeaderValue(key);

        if (valueObject == null) {
          logger.warning("Ignoring null value for key '" + key + "'.");
        } else {
          String value = valueObject.toString();
          logger.debug3(key + ": " + value);
          ret.put(key, value);
        }

      } catch (ClassCastException ex) {
        logger.error("makeCIProperties: " + key + " threw ", ex);
        throw new CacheException.ExploderException(ex);
      }
    }
    return (ret);
  }
예제 #3
0
  private Set outputUrlResults(String url, Set m_inclset, Set m_exclset) {
    Set new_incls = new TreeSet(CollectionUtils.subtract(m_inclset, m_reported));
    Set new_excls = new TreeSet(CollectionUtils.subtract(m_exclset, m_reported));
    if (!m_inclset.isEmpty()) {
      outputMessage(
          "\nIncluded Urls: ("
              + new_incls.size()
              + " new, "
              + (m_inclset.size() - new_incls.size())
              + " old)",
          URL_SUMMARY_MESSAGE);
      depth_incl[m_curDepth - 1] += new_incls.size();
    }
    for (Iterator it = new_incls.iterator(); it.hasNext(); ) {
      outputMessage(it.next().toString(), PLAIN_MESSAGE);
    }

    if (!m_exclset.isEmpty()) {
      outputMessage(
          "\nExcluded Urls: ("
              + new_excls.size()
              + " new, "
              + (m_exclset.size() - new_excls.size())
              + " old)",
          URL_SUMMARY_MESSAGE);
    }
    for (Iterator it = new_excls.iterator(); it.hasNext(); ) {
      outputMessage(it.next().toString(), PLAIN_MESSAGE);
    }
    m_reported.addAll(new_incls);
    m_reported.addAll(new_excls);

    if (m_outWriter != null) {
      try {
        m_outWriter.flush();
      } catch (IOException ex) {
      }
    }
    return new_incls;
  }
예제 #4
0
 protected void initMimeMap() throws PluginException.InvalidDefinition {
   for (Iterator iter = definitionMap.entrySet().iterator(); iter.hasNext(); ) {
     Map.Entry ent = (Map.Entry) iter.next();
     String key = (String) ent.getKey();
     Object val = ent.getValue();
     if (key.endsWith(DefinableArchivalUnit.SUFFIX_LINK_EXTRACTOR_FACTORY)) {
       String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_LINK_EXTRACTOR_FACTORY);
       if (val instanceof String) {
         String factName = (String) val;
         log.debug(mime + " link extractor: " + factName);
         MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
         LinkExtractorFactory fact =
             (LinkExtractorFactory) newAuxClass(factName, LinkExtractorFactory.class);
         mti.setLinkExtractorFactory(fact);
       }
     } else if (key.endsWith(DefinableArchivalUnit.SUFFIX_CRAWL_FILTER_FACTORY)) {
       // XXX This clause must precede the one for SUFFIX_HASH_FILTER_FACTORY
       // XXX unless/until that key is changed to not be a terminal substring
       // XXX of this one
       String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_CRAWL_FILTER_FACTORY);
       if (val instanceof String) {
         String factName = (String) val;
         log.debug(mime + " crawl filter: " + factName);
         MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
         FilterFactory fact = (FilterFactory) newAuxClass(factName, FilterFactory.class);
         mti.setCrawlFilterFactory(fact);
       }
     } else if (key.endsWith(DefinableArchivalUnit.SUFFIX_HASH_FILTER_FACTORY)) {
       String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_HASH_FILTER_FACTORY);
       if (val instanceof String) {
         String factName = (String) val;
         log.debug(mime + " filter: " + factName);
         MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
         FilterFactory fact = (FilterFactory) newAuxClass(factName, FilterFactory.class);
         mti.setHashFilterFactory(fact);
       }
     } else if (key.endsWith(DefinableArchivalUnit.SUFFIX_FETCH_RATE_LIMIT)) {
       String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_FETCH_RATE_LIMIT);
       if (val instanceof String) {
         String rate = (String) val;
         log.debug(mime + " fetch rate: " + rate);
         MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
         RateLimiter limit = mti.getFetchRateLimiter();
         if (limit != null) {
           limit.setRate(rate);
         } else {
           mti.setFetchRateLimiter(new RateLimiter(rate));
         }
       }
     } else if (key.endsWith(DefinableArchivalUnit.SUFFIX_LINK_REWRITER_FACTORY)) {
       String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_LINK_REWRITER_FACTORY);
       String factName = (String) val;
       log.debug(mime + " link rewriter: " + factName);
       MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
       LinkRewriterFactory fact =
           (LinkRewriterFactory) newAuxClass(factName, LinkRewriterFactory.class);
       mti.setLinkRewriterFactory(fact);
     } else if (key.endsWith(DefinableArchivalUnit.SUFFIX_METADATA_EXTRACTOR_FACTORY_MAP)) {
       String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_METADATA_EXTRACTOR_FACTORY_MAP);
       Map factNameMap = (Map) val;
       Map factClassMap = new HashMap();
       MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
       for (Iterator it = factNameMap.keySet().iterator(); it.hasNext(); ) {
         String mdTypes = (String) it.next();
         String factName = (String) factNameMap.get(mdTypes);
         log.debug(mime + " (" + mdTypes + ") metadata extractor: " + factName);
         for (String mdType : (List<String>) StringUtil.breakAt(mdTypes, ";")) {
           setMdTypeFact(factClassMap, mdType, factName);
         }
       }
       mti.setFileMetadataExtractorFactoryMap(factClassMap);
     }
   }
 }
예제 #5
0
  /** Explode the archive into its constituent elements */
  public void explode() throws CacheException {
    CachedUrl cachedUrl = null;
    int goodEntries = 0;
    int badEntries = 0;
    int ignoredEntries = 0;
    int entriesBetweenSleep = 0;
    ArchiveReader arcReader = null;

    logger.info(
        (storeArchive ? "Storing" : "Fetching") + " WARC file: " + origUrl + " will explode");
    try {
      if (storeArchive) {
        UrlCacher uc = au.makeUrlCacher(new UrlData(arcStream, arcProps, fetchUrl));
        BitSet bs = new BitSet();
        bs.set(UrlCacher.DONT_CLOSE_INPUT_STREAM_FLAG);
        uc.setFetchFlags(bs);
        uc.storeContent();
        archiveData.resetInputStream();
        arcStream = archiveData.input;
      }
      // Wrap it in an ArchiveReader
      logger.debug3("About to wrap stream");
      arcReader = wrapStream(fetchUrl, arcStream);
      logger.debug3("wrapStream() returns " + (arcReader == null ? "null" : "non-null"));
      // Explode it
      if (arcReader == null) {
        throw new CacheException.ExploderException("no WarcReader for " + origUrl);
      }
      ArchivalUnit au = crawlFacade.getAu();
      Set stemSet = new HashSet();
      logger.debug("Exploding " + fetchUrl);
      // Iterate through the elements in the WARC file, except the first
      Iterator i = arcReader.iterator();
      // Skip first record
      for (i.next(); i.hasNext(); ) {
        // XXX probably not necessary
        helper.pokeWDog();
        if ((++entriesBetweenSleep % sleepAfter) == 0) {
          long pauseTime =
              CurrentConfig.getTimeIntervalParam(PARAM_RETRY_PAUSE, DEFAULT_RETRY_PAUSE);
          Deadline pause = Deadline.in(pauseTime);
          logger.debug3("Sleeping for " + StringUtil.timeIntervalToString(pauseTime));
          while (!pause.expired()) {
            try {
              pause.sleep();
            } catch (InterruptedException ie) {
              // no action
            }
          }
        }
        ArchiveRecord element = (ArchiveRecord) i.next();
        // Each element is a URL to be cached in a suitable AU
        ArchiveRecordHeader elementHeader = element.getHeader();
        String elementUrl = elementHeader.getUrl();
        String elementMimeType = elementHeader.getMimetype();
        long elementLength = elementHeader.getLength();
        logger.debug2("WARC url " + elementUrl + " mime " + elementMimeType);
        if (elementUrl.startsWith("http:")) {
          ArchiveEntry ae =
              new ArchiveEntry(
                  elementUrl,
                  elementLength,
                  0, // XXX need to convert getDate string to long
                  element, // ArchiveRecord extends InputStream
                  this,
                  fetchUrl);
          ae.setHeaderFields(makeCIProperties(elementHeader));
          long bytesStored = elementLength;
          logger.debug3("ArchiveEntry: " + ae.getName() + " bytes " + bytesStored);
          try {
            helper.process(ae);
          } catch (PluginException ex) {
            throw new CacheException.ExploderException("helper.process() threw", ex);
          }
          if (ae.getBaseUrl() != null) {
            if (ae.getRestOfUrl() != null && ae.getHeaderFields() != null) {
              storeEntry(ae);
              handleAddText(ae);
              goodEntries++;
              crawlFacade.getCrawlerStatus().addContentBytesFetched(bytesStored);
            } else {
              ignoredEntries++;
            }
          } else {
            badEntries++;
            logger.debug2("Can't map " + elementUrl + " from " + archiveUrl);
          }
        }
      }
    } catch (IOException ex) {
      throw new CacheException.ExploderException(ex);
    } finally {
      if (arcReader != null)
        try {
          arcReader.close();
          arcReader = null;
        } catch (IOException ex) {
          throw new CacheException.ExploderException(ex);
        }
      if (cachedUrl != null) {
        cachedUrl.release();
      }
      IOUtil.safeClose(arcStream);
    }
    if (badEntries == 0 && goodEntries > 0) {
      // Make it look like a new crawl finished on each AU to which
      // URLs were added.
      for (Iterator it = touchedAus.iterator(); it.hasNext(); ) {
        ArchivalUnit au = (ArchivalUnit) it.next();
        logger.debug3(archiveUrl + " touching " + au.toString());
        AuUtil.getDaemon(au).getNodeManager(au).newContentCrawlFinished();
      }
    } else {
      ArchivalUnit au = crawlFacade.getAu();
      String msg = archiveUrl + ": " + badEntries + "/" + goodEntries + " bad entries";
      throw new CacheException.UnretryableException(msg);
    }
  }