@Override
public Object getValue(final PropertyManagement propertyManagement) {
try {
return propertyManagement.getProperty(parent);
} catch (final Exception e) {
LOGGER.error("Unable to deserialize property '" + parent.toString() + "'", e);
return null;
}
}
@Override
@SuppressWarnings("unchecked")
public int run(final Configuration configuration, final PropertyManagement propertyManagement)
throws Exception {
propertyManagement.store(CentroidParameters.Centroid.ZOOM_LEVEL, currentZoomLevel);
propertyManagement.storeIfEmpty(GlobalParameters.Global.BATCH_ID, UUID.randomUUID().toString());
propertyManagement.storeIfEmpty(
CentroidParameters.Centroid.WRAPPER_FACTORY_CLASS, SimpleFeatureItemWrapperFactory.class);
propertyManagement.storeIfEmpty(
CommonParameters.Common.DISTANCE_FUNCTION_CLASS, FeatureCentroidDistanceFn.class);
propertyManagement.storeIfEmpty(
CentroidParameters.Centroid.EXTRACTOR_CLASS, SimpleFeatureCentroidExtractor.class);
propertyManagement.storeIfEmpty(
CommonParameters.Common.DIMENSION_EXTRACT_CLASS, SimpleFeatureGeometryExtractor.class);
propertyManagement.copy(
CentroidParameters.Centroid.DATA_TYPE_ID, SampleParameters.Sample.DATA_TYPE_ID);
propertyManagement.copy(CentroidParameters.Centroid.INDEX_ID, SampleParameters.Sample.INDEX_ID);
ClusteringUtils.createAdapter(propertyManagement);
ClusteringUtils.createIndex(propertyManagement);
final String currentBatchId =
propertyManagement.getPropertyAsString(
GlobalParameters.Global.BATCH_ID, UUID.randomUUID().toString());
try {
final NumericRange rangeOfIterations =
propertyManagement.getPropertyAsRange(
JumpParameters.Jump.RANGE_OF_CENTROIDS, new NumericRange(2, 200));
propertyManagement.store(GlobalParameters.Global.PARENT_BATCH_ID, currentBatchId);
final GenericStoreCommandLineOptions<DataStore> dataStoreOptions =
((PersistableDataStore) propertyManagement.getProperty(StoreParam.DATA_STORE))
.getCliOptions();
final GenericStoreCommandLineOptions<IndexStore> indexStoreOptions =
((PersistableIndexStore) propertyManagement.getProperty(StoreParam.INDEX_STORE))
.getCliOptions();
final GenericStoreCommandLineOptions<AdapterStore> adapterStoreOptions =
((PersistableAdapterStore) propertyManagement.getProperty(StoreParam.ADAPTER_STORE))
.getCliOptions();
final DistortionGroupManagement distortionGroupManagement =
new DistortionGroupManagement(
dataStoreOptions.createStore(),
indexStoreOptions.createStore(),
adapterStoreOptions.createStore());
for (int k = (int) Math.max(2, Math.round(rangeOfIterations.getMin()));
k < Math.round(rangeOfIterations.getMax());
k++) {
// regardless of the algorithm, the sample set is fixed in size
propertyManagement.store(SampleParameters.Sample.MIN_SAMPLE_SIZE, k);
propertyManagement.store(SampleParameters.Sample.MAX_SAMPLE_SIZE, k);
propertyManagement.store(SampleParameters.Sample.SAMPLE_SIZE, k);
jumpRunner.setCentroidsCount(k);
jumpRunner.setDataStoreOptions(dataStoreOptions);
final String iterationBatchId = currentBatchId + "_" + k;
propertyManagement.store(GlobalParameters.Global.BATCH_ID, iterationBatchId);
jumpRunner.setReducerCount(k);
LOGGER.info("KMeans for k: " + k + " and batch " + currentBatchId);
final int status = super.run(configuration, propertyManagement);
if (status != 0) {
return status;
}
}
propertyManagement.store(GlobalParameters.Global.BATCH_ID, currentBatchId);
@SuppressWarnings("rawtypes")
final Class<AnalyticItemWrapperFactory> analyticItemWrapperFC =
propertyManagement.getPropertyAsClass(
CentroidParameters.Centroid.WRAPPER_FACTORY_CLASS, AnalyticItemWrapperFactory.class);
/**
* Associate the batch id with the best set of groups so the caller can find the clusters for
* the given batch
*/
final int result =
distortionGroupManagement.retainBestGroups(
(AnalyticItemWrapperFactory<SimpleFeature>) analyticItemWrapperFC.newInstance(),
propertyManagement.getPropertyAsString(CentroidParameters.Centroid.DATA_TYPE_ID),
propertyManagement.getPropertyAsString(CentroidParameters.Centroid.INDEX_ID),
currentBatchId,
currentZoomLevel);
// distortionGroupManagement.cleanUp();
return result;
} catch (final Exception ex) {
LOGGER.error("Cannot create distortions", ex);
return 1;
}
}