@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);
}
}
static StructObjectInspector createStructObjectInspector(HCatSchema outputSchema)
throws IOException {
if (outputSchema == null) {
throw new IOException("Invalid output schema specified");
}
List<ObjectInspector> fieldInspectors = new ArrayList<ObjectInspector>();
List<String> fieldNames = new ArrayList<String>();
for (HCatFieldSchema hcatFieldSchema : outputSchema.getFields()) {
TypeInfo type = TypeInfoUtils.getTypeInfoFromTypeString(hcatFieldSchema.getTypeString());
fieldNames.add(hcatFieldSchema.getName());
fieldInspectors.add(getObjectInspector(type));
}
StructObjectInspector structInspector =
ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames, fieldInspectors);
return structInspector;
}