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;
}
/**
* 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();
}
}
/**
* 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;
}
/**
* 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();
}