/** {@inheritDoc} */
@Override
protected void configureJob(final Job job) throws IOException {
if (null == mScoreFunctionClass) {
throw new JobConfigurationException("Must specify a ScoreFunction class.");
}
if (null == mClientDataRequest) {
mClientDataRequest = DEFAULT_CLIENT_REQUEST;
}
if (null == mAttachedColumn) {
throw new JobConfigurationException("Must specified an AttachedColumn.");
}
if (null == mParameters) {
mParameters = DEFAULT_PARAMETERS;
}
final Configuration conf = job.getConfiguration();
conf.setClass(SCORE_FUNCTION_CLASS_CONF_KEY, mScoreFunctionClass, ScoreFunction.class);
if (!getInputTableURI().equals(mJobOutput.getOutputTableURI())) {
throw new JobConfigurationException(
String.format(
"Output table must be the same as the input" + "table. Got input: %s output: %s",
getInputTableURI(), mJobOutput.getOutputTableURI()));
}
conf.set(SCORE_FUNCTION_ATTACHED_COLUMN_CONF_KEY, mAttachedColumn.getName());
conf.set(SCORE_FUNCTION_PARAMETERS_CONF_KEY, GSON.toJson(mParameters, Map.class));
conf.set(
SCORE_FUNCTION_CLIENT_DATA_REQUEST_CONF_KEY,
Base64.encodeBase64String(SerializationUtils.serialize(mClientDataRequest)));
mMapper = new ScoreFunctionMapper();
mReducer = new IdentityReducer<Object, Object>();
job.setJobName("Kiji ScoreFunction: " + mScoreFunctionClass.getSimpleName());
mScoreFunction = ReflectionUtils.newInstance(mScoreFunctionClass, conf);
final FreshenerContext context =
InternalFreshenerContext.create(
mClientDataRequest,
mAttachedColumn,
mParameters,
Maps.<String, String>newHashMap(),
KeyValueStoreReaderFactory.create(getRequiredStores()));
mScoreFunctionDataRequest = mScoreFunction.getDataRequest(context);
super.configureJob(job);
}
@Override
public void close() throws IOException {
mKVStoreFactory.close();
}
@Override
public <K, V> KeyValueStoreReader<K, V> getStore(String storeName) throws IOException {
return mKVStoreFactory.openStore(storeName);
}
/**
* Constructs a new KijiWebContext given the bound KV stores and the output column to "write" the
* final results to upon completion of the producer.
*
* @param boundStores is the map of name to KVStore.
* @param outputColumn is the name of the column to write the results to.
*/
public KijiWebContext(Map<String, KeyValueStore<?, ?>> boundStores, KijiColumnName outputColumn) {
mKVStoreFactory = KeyValueStoreReaderFactory.create(boundStores);
mFamily = outputColumn.getFamily();
mQualifier = outputColumn.getQualifier();
}