private ArrayList<Object[]> writeToTable(RowMetaInterface rowMeta, ArrayList<Object[]> rows)
throws KettleException {
if (rows.isEmpty()) // Stop: last line or error encountered
{
if (log.isDetailed()) logDetailed("Last line inserted: stop");
return null;
}
PreparedStatement insertStatement = null;
ArrayList<Object[]> insertRowsData = new ArrayList<Object[]>();
ArrayList<Object[]> outputRowsData = rows;
String tableName = null;
boolean sendToErrorRow = false;
String errorMessage = null;
boolean rowIsSafe = false;
int[] updateCounts = null;
List<Exception> exceptionsList = null;
boolean batchProblem = false;
for (Object[] row : rows) {
if (meta.isTableNameInField()) {
// Cache the position of the table name field
if (data.indexOfTableNameField < 0) {
String realTablename = environmentSubstitute(meta.getTableNameField());
data.indexOfTableNameField = rowMeta.indexOfValue(realTablename);
if (data.indexOfTableNameField < 0) {
String message = "Unable to find table name field [" + realTablename + "] in input row";
logError(message);
throw new KettleStepException(message);
}
if (!meta.isTableNameInTable()) {
data.insertRowMeta.removeValueMeta(data.indexOfTableNameField);
}
}
tableName = rowMeta.getString(rows.get(0), data.indexOfTableNameField);
if (!meta.isTableNameInTable()) {
// If the name of the table should not be inserted itself,
// remove the table name
// from the input row data as well. This forcibly creates a
// copy of r
insertRowsData.add(
RowDataUtil.removeItem(rowMeta.cloneRow(row), data.indexOfTableNameField));
} else {
insertRowsData.add(row);
}
} else if (meta.isPartitioningEnabled()
&& (meta.isPartitioningDaily() || meta.isPartitioningMonthly())
&& (meta.getPartitioningField() != null && meta.getPartitioningField().length() > 0)) {
// Initialize some stuff!
if (data.indexOfPartitioningField < 0) {
data.indexOfPartitioningField =
rowMeta.indexOfValue(environmentSubstitute(meta.getPartitioningField()));
if (data.indexOfPartitioningField < 0) {
throw new KettleStepException(
"Unable to find field [" + meta.getPartitioningField() + "] in the input row!");
}
if (meta.isPartitioningDaily()) {
data.dateFormater = new SimpleDateFormat("yyyyMMdd");
} else {
data.dateFormater = new SimpleDateFormat("yyyyMM");
}
}
ValueMetaInterface partitioningValue = rowMeta.getValueMeta(data.indexOfPartitioningField);
if (!partitioningValue.isDate() || row[data.indexOfPartitioningField] == null) {
throw new KettleStepException(
"Sorry, the partitioning field needs to contain a data value and can't be empty!");
}
Object partitioningValueData = rowMeta.getDate(row, data.indexOfPartitioningField);
tableName =
environmentSubstitute(meta.getTablename())
+ "_"
+ data.dateFormater.format((Date) partitioningValueData);
insertRowsData.add(row);
} else {
tableName = data.tableName;
insertRowsData.add(row);
}
if (Const.isEmpty(tableName)) {
throw new KettleStepException("The tablename is not defined (empty)");
}
}
if (!data.preparedStatements.containsKey(tableName)) {
data.preparedStatements.put(tableName, new Hashtable<Integer, PreparedStatement>());
}
insertStatement = (PreparedStatement) data.preparedStatements.get(tableName).get(rows.size());
if (insertStatement == null) {
String sql =
getInsertStatement(
environmentSubstitute(meta.getSchemaName()),
tableName,
data.insertRowMeta,
rows.size());
if (log.isDetailed()) logDetailed("Prepared statement : " + sql);
insertStatement = data.db.prepareSQL(sql);
if (!data.preparedStatements.containsKey(tableName)) {
data.preparedStatements.put(tableName, new Hashtable<Integer, PreparedStatement>());
}
data.preparedStatements.get(tableName).put(rows.size(), insertStatement);
}
try {
// For PG & GP, we add a savepoint before the row.
// Then revert to the savepoint afterwards... (not a transaction, so
// hopefully still fast)
//
if (data.specialErrorHandling) {
data.savepoint = data.db.setSavepoint();
}
RowMeta insertRowMeta = new RowMeta();
for (int i = 0; i < rows.size(); i++) {
for (int j = 0; j < data.valuenrs.length; j++) {
insertRowMeta.addValueMeta(data.insertRowMeta.getValueMeta(j));
}
}
data.db.setValues(insertRowMeta, toArray(insertRowsData), insertStatement);
data.db.insertRow(insertStatement, data.batchMode, false); // false:
// no
// commit,
// it is
// handled
// in
// this
// step
// different
// Get a commit counter per prepared statement to keep track of
// separate tables, etc.
//
Integer commitCounter = data.commitCounterMap.get(tableName);
if (commitCounter == null) {
commitCounter = Integer.valueOf(1);
} else {
commitCounter++;
}
data.commitCounterMap.put(tableName, Integer.valueOf(commitCounter.intValue()));
// Release the savepoint if needed
//
if (data.specialErrorHandling) {
if (data.releaseSavepoint) {
data.db.releaseSavepoint(data.savepoint);
}
}
// Perform a commit if needed
//
if ((data.commitSize > 0) && ((commitCounter % data.commitSize) == 0)) {
if (data.batchMode) {
try {
insertStatement.executeBatch();
data.db.commit();
insertStatement.clearBatch();
} catch (BatchUpdateException ex) {
KettleDatabaseBatchException kdbe =
new KettleDatabaseBatchException("Error updating batch", ex);
kdbe.setUpdateCounts(ex.getUpdateCounts());
List<Exception> exceptions = new ArrayList<Exception>();
// 'seed' the loop with the root exception
SQLException nextException = ex;
do {
exceptions.add(nextException);
// while current exception has next exception, add
// to list
} while ((nextException = nextException.getNextException()) != null);
kdbe.setExceptionsList(exceptions);
throw kdbe;
} catch (SQLException ex) {
throw new KettleDatabaseException("Error inserting row", ex);
} catch (Exception ex) {
throw new KettleDatabaseException("Unexpected error inserting row", ex);
}
} else {
// insertRow normal commit
data.db.commit();
}
// Clear the batch/commit counter...
//
data.commitCounterMap.put(tableName, Integer.valueOf(0));
rowIsSafe = true;
} else {
rowIsSafe = false;
}
} catch (KettleDatabaseBatchException be) {
errorMessage = be.toString();
batchProblem = true;
sendToErrorRow = true;
updateCounts = be.getUpdateCounts();
exceptionsList = be.getExceptionsList();
if (getStepMeta().isDoingErrorHandling()) {
data.db.clearBatch(insertStatement);
data.db.commit(true);
} else {
data.db.clearBatch(insertStatement);
data.db.rollback();
StringBuffer msg =
new StringBuffer("Error batch inserting rows into table [" + tableName + "].");
msg.append(Const.CR);
msg.append("Errors encountered (first 10):").append(Const.CR);
for (int x = 0; x < be.getExceptionsList().size() && x < 10; x++) {
Exception exception = be.getExceptionsList().get(x);
if (exception.getMessage() != null) msg.append(exception.getMessage()).append(Const.CR);
}
throw new KettleException(msg.toString(), be);
}
} catch (KettleDatabaseException dbe) {
if (getStepMeta().isDoingErrorHandling()) {
if (data.specialErrorHandling) {
data.db.rollback(data.savepoint);
if (data.releaseSavepoint) {
data.db.releaseSavepoint(data.savepoint);
}
// data.db.commit(true); // force a commit on the connection
// too.
}
sendToErrorRow = true;
errorMessage = dbe.toString();
} else {
if (meta.ignoreErrors()) {
if (data.warnings < 20) {
if (log.isBasic())
logBasic("WARNING: Couldn't insert row into table." + Const.CR + dbe.getMessage());
} else if (data.warnings == 20) {
if (log.isBasic())
logBasic(
"FINAL WARNING (no more then 20 displayed): Couldn't insert row into table: "
+ Const.CR
+ dbe.getMessage());
}
data.warnings++;
} else {
setErrors(getErrors() + 1);
data.db.rollback();
throw new KettleException("Error inserting row into table [" + tableName + "]", dbe);
}
}
}
if (data.batchMode) {
if (sendToErrorRow) {
if (batchProblem) {
for (Object[] row : outputRowsData) {
data.batchBuffer.add(row);
}
outputRowsData = null;
processBatchException(errorMessage, updateCounts, exceptionsList);
} else {
// Simply add this row to the error row
for (Object[] row : outputRowsData) {
putError(rowMeta, row, 1L, errorMessage, null, "TOP001");
}
outputRowsData = null;
}
} else {
for (Object[] row : outputRowsData) {
data.batchBuffer.add(row);
}
outputRowsData = null;
if (rowIsSafe) // A commit was done and the rows are all safe
// (no error)
{
for (int i = 0; i < data.batchBuffer.size(); i++) {
Object[] row = (Object[]) data.batchBuffer.get(i);
putRow(data.outputRowMeta, row);
incrementLinesOutput();
}
// Clear the buffer
data.batchBuffer.clear();
}
}
} else {
if (sendToErrorRow) {
for (Object[] row : outputRowsData) {
putError(rowMeta, row, 1L, errorMessage, null, "TOP001");
}
outputRowsData = null;
}
}
return outputRowsData;
}
