@Override
public void configureInputJobProperties(TableDesc tableDesc, Map<String, String> jobProperties) {
try {
Map<String, String> tableProperties = tableDesc.getJobProperties();
String jobInfoProperty = tableProperties.get(HCatConstants.HCAT_KEY_JOB_INFO);
if (jobInfoProperty != null) {
InputJobInfo inputJobInfo = (InputJobInfo) HCatUtil.deserialize(jobInfoProperty);
HCatTableInfo tableInfo = inputJobInfo.getTableInfo();
HCatSchema dataColumns = tableInfo.getDataColumns();
List<HCatFieldSchema> dataFields = dataColumns.getFields();
StringBuilder columnNamesSb = new StringBuilder();
StringBuilder typeNamesSb = new StringBuilder();
for (HCatFieldSchema dataField : dataFields) {
if (columnNamesSb.length() > 0) {
columnNamesSb.append(",");
typeNamesSb.append(":");
}
columnNamesSb.append(dataField.getName());
typeNamesSb.append(dataField.getTypeString());
}
jobProperties.put(IOConstants.SCHEMA_EVOLUTION_COLUMNS, columnNamesSb.toString());
jobProperties.put(IOConstants.SCHEMA_EVOLUTION_COLUMNS_TYPES, typeNamesSb.toString());
boolean isAcidTable = AcidUtils.isTablePropertyTransactional(tableProperties);
AcidUtils.setTransactionalTableScan(jobProperties, isAcidTable);
}
} catch (IOException e) {
throw new IllegalStateException("Failed to set output path", e);
}
}
@Override
public void configureOutputJobProperties(TableDesc tableDesc, Map<String, String> jobProperties) {
try {
OutputJobInfo jobInfo =
(OutputJobInfo)
HCatUtil.deserialize(
tableDesc.getJobProperties().get(HCatConstants.HCAT_KEY_OUTPUT_INFO));
String parentPath = jobInfo.getTableInfo().getTableLocation();
String dynHash = tableDesc.getJobProperties().get(HCatConstants.HCAT_DYNAMIC_PTN_JOBID);
String idHash = tableDesc.getJobProperties().get(HCatConstants.HCAT_OUTPUT_ID_HASH);
// For dynamic partitioned writes without all keyvalues specified,
// we create a temp dir for the associated write job
if (dynHash != null) {
// if external table and custom root specified, update the parent path
if (Boolean.valueOf((String) tableDesc.getProperties().get("EXTERNAL"))
&& jobInfo.getCustomDynamicRoot() != null
&& jobInfo.getCustomDynamicRoot().length() > 0) {
parentPath = new Path(parentPath, jobInfo.getCustomDynamicRoot()).toString();
}
parentPath =
new Path(parentPath, FileOutputCommitterContainer.DYNTEMP_DIR_NAME + dynHash)
.toString();
} else {
parentPath =
new Path(parentPath, FileOutputCommitterContainer.SCRATCH_DIR_NAME + idHash).toString();
}
String outputLocation;
if ((dynHash != null)
&& Boolean.valueOf((String) tableDesc.getProperties().get("EXTERNAL"))
&& jobInfo.getCustomDynamicPath() != null
&& jobInfo.getCustomDynamicPath().length() > 0) {
// dynamic partitioning with custom path; resolve the custom path
// using partition column values
outputLocation = HCatFileUtil.resolveCustomPath(jobInfo, null, true);
} else if ((dynHash == null)
&& Boolean.valueOf((String) tableDesc.getProperties().get("EXTERNAL"))
&& jobInfo.getLocation() != null
&& jobInfo.getLocation().length() > 0) {
// honor custom location for external table apart from what metadata specifies
outputLocation = jobInfo.getLocation();
} else if (dynHash == null && jobInfo.getPartitionValues().size() == 0) {
// Unpartitioned table, writing to the scratch dir directly is good enough.
outputLocation = "";
} else {
List<String> cols = new ArrayList<String>();
List<String> values = new ArrayList<String>();
// Get the output location in the order partition keys are defined for the table.
for (String name : jobInfo.getTableInfo().getPartitionColumns().getFieldNames()) {
String value = jobInfo.getPartitionValues().get(name);
cols.add(name);
values.add(value);
}
outputLocation = FileUtils.makePartName(cols, values);
}
if (outputLocation != null && !outputLocation.isEmpty()) {
jobInfo.setLocation(new Path(parentPath, outputLocation).toString());
} else {
jobInfo.setLocation(new Path(parentPath).toString());
}
// only set output dir if partition is fully materialized
if (jobInfo.getPartitionValues().size()
== jobInfo.getTableInfo().getPartitionColumns().size()) {
jobProperties.put("mapred.output.dir", jobInfo.getLocation());
}
SpecialCases.addSpecialCasesParametersToOutputJobProperties(jobProperties, jobInfo, ofClass);
jobProperties.put(HCatConstants.HCAT_KEY_OUTPUT_INFO, HCatUtil.serialize(jobInfo));
} catch (IOException e) {
throw new IllegalStateException("Failed to set output path", e);
}
}