PDI UDJC code to get Step Plugin info

gistfile1.java

import org.pentaho.di.core.plugins.*;
import org.pentaho.di.core.row.*;
import java.util.List;

String type;
String id;
String name;
String description;
String libraries;
String imagefile;
String classname;
String category;

public boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException
{
    // First, get a row from the default input hop
	//
	Object[] r = getRow();

    // If the row object is null, we are done processing.
	//
	if (r == null) {
		setOutputDone();
		return false;
	}

	// It is always safest to call createOutputRow() to ensure that your output row's Object[] is large
    // enough to handle any new fields you are creating in this step.
	//
    RowBuffer rowBuffer = PluginRegistry.getInstance().getPluginInformation(StepPluginType.class);
	RowMetaInterface rmi = rowBuffer.getRowMeta();
	int numCols = rmi.size();
	
	List pluginInfo = rowBuffer.getBuffer();
	int numRows = pluginInfo.size();
	for(int rowNum=0;rowNum<numRows;rowNum++) {
		Object[] pluginInfoCols = (Object[])pluginInfo.get(rowNum);
		Object[] outputRow = createOutputRow(r, numCols);

		for(int i=0;i<numCols;i++) {
      		ValueMetaInterface v = rmi.getValueMeta(i);
      		outputRow[i] = v.getString(pluginInfoCols[i]);
		}	
		putRow(data.outputRowMeta, outputRow);
	}
	return true;
}