Examples of net.sf.regain.RegainException

net.sf.regain.RegainException
An exception for the lucene search.
It can handle nested exceptions. Nested exceptions will be printed with the stacktrace.
This class has the same code as {@link net.sf.regain.util.sharedtag.taglib.ExtendedJspException}. The only difference is, that is inherits from Exception. @author Til Schneider, www.murfman.de

                new String(fieldContent));
      }


    }
    catch (RegainException exc) {
      throw new RegainException("Getting hit #" + hitIndex + " failed", exc);
    }
  }

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      try {
        mIndexSearcher = new IndexSearcher(FSDirectory.open(mWorkingIndexDir),true);
      }
      catch (IOException exc) {
        throw new RegainException("Creating index searcher failed", exc);
      }
    }


    try {
      TopScoreDocCollector collector = TopScoreDocCollector.create(20, false);
      mIndexSearcher.search(query, collector);
      return collector.topDocs().scoreDocs;


    } catch (IOException exc) {
      throw new RegainException("Searching query failed", exc);
    }
  }

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      try {
        mIndexReader = IndexReader.open(FSDirectory.open(mWorkingIndexDir),true);
      }
      catch (IOException exc) {
        throw new RegainException("Creating index reader failed", exc);
      }
    }


    return mIndexReader;
  }

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        checkForIndexUpdate();
      }


      if (! mWorkingIndexDir.exists()) {
        // There is no working and no new index -> throw exception
        throw new RegainException("No index found in "
            + mWorkingIndexDir.getParentFile().getAbsolutePath());
      }


      // Read the stopWordList and the exclusionList
      File analyzerTypeFile = new File(mWorkingIndexDir, "analyzerType.txt");

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      if (mIndexSearcher != null) {
        try {
          mIndexSearcher.close();
        }
        catch (IOException exc) {
          throw new RegainException("Closing index searcher failed", exc);
        }


        // Force the creation of a new IndexSearcher and Analyzer next time it
        // will be needed
        mIndexSearcher = null;
        mAnalyzer = null;
      }


      // Close the IndexReader
      if (mIndexReader != null) {
        try {
          mIndexReader.close();
        }
        catch (IOException exc) {
          throw new RegainException("Closing index reader failed", exc);
        }


        // Force the creation of a new IndexReader and mFieldTermHash next time
        // it will be needed
        mIndexReader = null;
        mFieldTermHash = null;
      }


      // Remove the old backup if it should still exist
      if (mBackupIndexDir.exists()) {
        RegainToolkit.deleteDirectory(mBackupIndexDir);
      }


      // Backup the current index (if there is one)
      if (mWorkingIndexDir.exists()) {
        if (! mWorkingIndexDir.renameTo(mBackupIndexDir)) {
          throw new RegainException("Renaming " + mWorkingIndexDir + " to "
            + mBackupIndexDir + " failed!");
        }
      }


      // Move the new index
      if (! mNewIndexDir.renameTo(mWorkingIndexDir)) {
        throw new RegainException("Renaming " + mNewIndexDir + " to "
          + mWorkingIndexDir + " failed!");
      }
    }
  }

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    Query rewittenQuery = query;
    if (mIndexSearcher != null) {
      try {
        rewittenQuery = getIndexSearcher().rewrite(query);
      } catch (IOException e) {
        throw new RegainException("Rewriting of query: " + query.toString() + " failed. " + e.getMessage());
      }
    }
    return rewittenQuery;
  }

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      try {
        mIndexSearcher = new IndexSearcher(FSDirectory.open(mWorkingIndexDir),true);
      }
      catch (IOException exc) {
        throw new RegainException("Creating index searcher failed", exc);
      }
    }


    return mIndexSearcher;
  }

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      byte[] compressedFieldValue = hit.getBinaryValue(field);
      if (compressedFieldValue != null) {
        try {
          value = CompressionTools.decompressString(compressedFieldValue);
        } catch (DataFormatException dataFormatException) {
          throw new RegainException("Couldn't uncompress field value." + dataFormatException);
        }
      }
    }


    if (value != null) {

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        strWriter.close();
        
        response.printNoHtml(strWriter.toString());
      }
      catch (IOException exc) {
        throw new RegainException("Printing stacktrace failed", exc);
      } 
    }
  }

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    fieldHash.add(PATH);


    // Check the validity of the new option
    if (this.description == null || this.description.length() < 3 ||
            !fieldHash.contains(this.sortFieldName) || this.id < 0) {
      throw new RegainException("The sorting option is not properly defined.");
    }
  }

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