Ejemplo n.º 1
0
  public boolean superSetInputFormat(M5Instances instanceInfo) throws Exception {

    m_InputFormat = instanceInfo.stringFreeStructure();
    m_InputStringAtts = getStringIndices(instanceInfo);
    m_OutputFormat = null;
    m_OutputQueue = new Queue();
    m_NewBatch = true;
    return false;
  }
Ejemplo n.º 2
0
  /**
   * This will remove all buffered instances from the inputformat dataset. Use this method rather
   * than getInputFormat().delete();
   */
  protected void flushInput() {

    if (m_InputStringAtts.length > 0) {
      m_InputFormat = m_InputFormat.stringFreeStructure();
    } else {
      // This more efficient than new Instances(m_InputFormat, 0);
      m_InputFormat.delete();
    }
  }
Ejemplo n.º 3
0
  /**
   * Output an instance after filtering and remove from the output queue.
   *
   * @return the instance that has most recently been filtered (or null if the queue is empty).
   * @exception NullPointerException if no output structure has been defined
   */
  public M5Instance output() {

    if (m_OutputFormat == null) {
      throw new NullPointerException("No output instance format defined");
    }
    if (m_OutputQueue.empty()) {
      return null;
    }
    M5Instance result = (M5Instance) m_OutputQueue.pop();
    // Clear out references to old strings occasionally
    if (m_OutputQueue.empty() && m_NewBatch) {
      if (m_OutputStringAtts.length > 0) {
        m_OutputFormat = m_OutputFormat.stringFreeStructure();
      }
    }
    return result;
  }
Ejemplo n.º 4
0
  /**
   * Sets the format of output instances. The derived class should use this method once it has
   * determined the outputformat. The output queue is cleared.
   *
   * @param outputFormat the new output format
   */
  protected void setOutputFormat(M5Instances outputFormat) {

    if (outputFormat != null) {
      m_OutputFormat = outputFormat.stringFreeStructure();
      m_OutputStringAtts = getStringIndices(m_OutputFormat);

      // Rename the attribute
      String relationName = outputFormat.relationName() + "-" + this.getClass().getName();
      if (this instanceof NominalToBinaryFilter) {
        String[] options = ((NominalToBinaryFilter) this).getOptions();
        for (int i = 0; i < options.length; i++) {
          relationName += options[i].trim();
        }
      }
      m_OutputFormat.setRelationName(relationName);
    } else {
      m_OutputFormat = null;
    }
    m_OutputQueue = new Queue();
  }