/*
* Allocate input streams and create the temporary files...
*
*/
@SuppressWarnings("unchecked")
public boolean init(StepMetaInterface smi, StepDataInterface sdi) {
meta = (JoinRowsMeta) smi;
data = (JoinRowsData) sdi;
if (super.init(smi, sdi)) {
try {
// Start with the caching of the data, write later...
data.caching = true;
// Start at file 1, skip 0 for speed!
data.filenr = 1;
// See if a main step is supplied: in that case move the corresponding rowset to position 0
for (int i = 0; i < getInputRowSets().size(); i++) {
RowSet rs = getInputRowSets().get(i);
if (rs.getOriginStepName().equalsIgnoreCase(meta.getMainStepname())) {
// swap this one and position 0...
// That means, the main stream is always stream 0 --> easy!
//
RowSet zero = getInputRowSets().get(0);
getInputRowSets().set(0, rs);
getInputRowSets().set(i, zero);
}
}
// ** INPUT SIDE **
data.file = new File[getInputRowSets().size()];
data.fileInputStream = new FileInputStream[getInputRowSets().size()];
data.dataInputStream = new DataInputStream[getInputRowSets().size()];
data.size = new int[getInputRowSets().size()];
data.fileRowMeta = new RowMetaInterface[getInputRowSets().size()];
data.joinrow = new Object[getInputRowSets().size()][];
data.rs = new RowSet[getInputRowSets().size()];
data.cache = new List[getInputRowSets().size()];
data.position = new int[getInputRowSets().size()];
data.fileOutputStream = new FileOutputStream[getInputRowSets().size()];
data.dataOutputStream = new DataOutputStream[getInputRowSets().size()];
data.restart = new boolean[getInputRowSets().size()];
for (int i = 1; i < getInputRowSets().size(); i++) {
String directoryName = environmentSubstitute(meta.getDirectory());
data.file[i] =
File.createTempFile(meta.getPrefix(), ".tmp", new File(directoryName)); // $NON-NLS-1$
data.file[i].deleteOnExit();
data.size[i] = 0;
data.rs[i] = getInputRowSets().get(i);
data.cache[i] = null;
// data.row[i] = null;
data.position[i] = 0;
data.dataInputStream[i] = null;
data.dataOutputStream[i] = null;
data.joinrow[i] = null;
data.restart[i] = false;
}
return true;
} catch (IOException e) {
logError(
BaseMessages.getString(PKG, "JoinRows.Log.ErrorCreatingTemporaryFiles")
+ e.toString()); // $NON-NLS-1$
}
}
return false;
}
