Package de.lmu.ifi.dbs.elki.utilities.exceptions

Examples of de.lmu.ifi.dbs.elki.utilities.exceptions.AbortException

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    existed = f.exists();
    try {
      file = new RandomAccessFile(f, "rw");
    }
    catch(IOException e) {
      throw new AbortException("IO error in loading persistent page file.", e);
    }
  }
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        try {
          page = pageclass.newInstance();
          page.readExternal(ois);
        }
        catch(InstantiationException e) {
          throw new AbortException("Error instanciating an index page", e);
        }
        catch(IllegalAccessException e) {
          throw new AbortException("Error instanciating an index page", e);
        }
        catch(ClassNotFoundException e) {
          throw new AbortException("Error instanciating an index page", e);
        }
        return page;
      }
      else {
        throw new IllegalArgumentException("Unknown type: " + type);
      }
    }
    catch(IOException e) {
      throw new AbortException("IO Error in page file", e);
    }
  }
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    KNNQuery<O, D> knnComp = pair.getFirst();
    KNNQuery<O, D> knnReach = pair.getSecond();

    // Assert we got something
    if(knnComp == null) {
      throw new AbortException("No kNN queries supported by database for comparison distance function.");
    }
    if(knnReach == null) {
      throw new AbortException("No kNN queries supported by database for density estimation distance function.");
    }

    // Probabilistic distances
    WritableDataStore<Double> pdists = DataStoreUtil.makeStorage(relation.getDBIDs(), DataStoreFactory.HINT_HOT | DataStoreFactory.HINT_TEMP, Double.class);
    {// computing PRDs
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    super();
    try {
      loadCache(parser, matrixfile);
    }
    catch(IOException e) {
      throw new AbortException("Could not load external distance file: " + matrixfile.toString(), e);
    }
  }
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    }
    if(id2 == null) {
      return getDistanceFactory().undefinedDistance();
    }
    if(id1.getIntegerID() < 0 || id2.getIntegerID() < 0) {
      throw new AbortException("Negative DBIDs not supported in OnDiskCache");
    }
    // the smaller id is the first key
    if(id1.getIntegerID() > id2.getIntegerID()) {
      return distance(id2, id1);
    }
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    this.index = index;
  }

  @Override
  public List<DistanceResultPair<D>> getRKNNForObject(O obj, int k) {
    throw new AbortException("Preprocessor KNN query only supports ID queries.");
  }
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  protected void preprocess() {
    DistanceQuery<O, D> distanceQuery = relation.getDatabase().getDistanceQuery(relation, distanceFunction);

    Collection<SpatialIndexTree<N, E>> indexes = ResultUtil.filterResults(relation, SpatialIndexTree.class);
    if(indexes.size() != 1) {
      throw new AbortException(SpatialApproximationMaterializeKNNPreprocessor.class.getSimpleName() + " found " + indexes.size() + " spatial indexes, expected exactly one.");
    }
    SpatialIndexTree<N, E> index = indexes.iterator().next();

    storage = DataStoreUtil.makeStorage(relation.getDBIDs(), DataStoreFactory.HINT_STATIC, KNNResult.class);
    MeanVariance pagesize = new MeanVariance();
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          try {
            ClassLabel lbl = classLabelFactory.makeFromString(ll.remove(classLabelIndex));
            clscol.add(lbl);
          }
          catch(Exception e) {
            throw new AbortException("Cannot initialize class labels: "+e.getMessage(), e);
          }
          lblcol.add(ll);
          if(ll.size() > 0) {
            keeplabelcol = true;
          }
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    super();
    try {
      loadCache(parser, matrixfile);
    }
    catch(IOException e) {
      throw new AbortException("Could not load external distance file: " + matrixfile.toString(), e);
    }
  }
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    }
    if(id2 == null) {
      return getDistanceFactory().undefinedDistance();
    }
    if(id1.getIntegerID() < 0 || id2.getIntegerID() < 0) {
      throw new AbortException("Negative DBIDs not supported in OnDiskCache");
    }
    // the smaller id is the first key
    if(id1.getIntegerID() > id2.getIntegerID()) {
      return distance(id2, id1);
    }
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