public void insert(final EntityConfig config, final Object entity) throws HiveLockableException {
try {
conditionallyInsertPrimaryIndexKey(config, entity);
hive.directory()
.insertResourceId(
config.getResourceName(), config.getId(entity), config.getPrimaryIndexKey(entity));
conditionallyInsertDelegatedResourceIndexes(config, entity);
insertSecondaryIndexes(config, entity);
} catch (RuntimeException e) {
hive.directory().deleteResourceId(config.getResourceName(), config.getId(entity));
throw e;
}
}
public void updatePartitionDimensionIndexIfNeeded(EntityConfig config, Object entity)
throws HiveLockableException {
// Detect partition key changes
Object originalPartitionKey =
hive.directory()
.getPrimaryIndexKeyOfResourceId(config.getResourceName(), config.getId(entity));
if (!config.getPrimaryIndexKey(entity).equals(originalPartitionKey)) {
conditionallyInsertPrimaryIndexKey(config, entity);
hive.directory()
.updatePrimaryIndexKeyOfResourceId(
config.getResourceName(), config.getId(entity), config.getPrimaryIndexKey(entity));
}
}
public void update(EntityConfig config, Object entity) throws HiveLockableException {
Map<String, Collection<Object>> secondaryIndexValues =
getAllSecondaryIndexValues(config, entity);
Map<String, Object> partitionIndexValues = getAllPartitionIndexValues(config, entity);
Map<String, Collection<Object>> toDelete = Maps.newHashMap();
Map<String, Collection<Object>> toInsert = Maps.newHashMap();
conditionallyInsertDelegatedResourceIndexes(config, entity);
for (EntityIndexConfig indexConfig : getPartitionIndexConfigs(config)) {
if (!partitionIndexValues
.get(indexConfig.getIndexName())
.equals(indexConfig.getIndexValues(entity).iterator().next())) {
if (!hive.directory()
.doesPrimaryIndexKeyExist(indexConfig.getIndexValues(entity).iterator().next())) {
hive.directory()
.insertPrimaryIndexKey(indexConfig.getIndexValues(entity).iterator().next());
}
hive.directory()
.updatePrimaryIndexKeyOfResourceId(
config.getResourceName(),
config.getId(entity),
indexConfig.getIndexValues(entity).iterator().next());
}
}
// Delete and insert secondary index values that have changed
for (EntityIndexConfig indexConfig : getSecondaryIndexConfigs(config)) {
Pair<Collection<Object>, Collection<Object>> diff =
Collect.diff(
secondaryIndexValues.get(indexConfig.getIndexName()),
indexConfig.getIndexValues(entity));
toDelete.put(indexConfig.getIndexName(), diff.getKey());
toInsert.put(indexConfig.getIndexName(), diff.getValue());
}
hive.directory()
.insertSecondaryIndexKeys(config.getResourceName(), toInsert, config.getId(entity));
hive.directory()
.deleteSecondaryIndexKeys(config.getResourceName(), toDelete, config.getId(entity));
}
private Map<String, Object> getAllPartitionIndexValues(EntityConfig config, Object entity) {
Map<String, Object> partitionIndexMap = new HashMap<String, Object>();
for (EntityIndexConfig indexConfig : getPartitionIndexConfigs(config))
partitionIndexMap.put(
indexConfig.getIndexName(),
hive.directory()
.getPrimaryIndexKeyOfResourceId(
config.getResourceName(),
// indexConfig.getIndexName(),
config.getId(entity)));
return partitionIndexMap;
}
@SuppressWarnings("unchecked")
private Map<String, Collection<Object>> getAllSecondaryIndexValues(
EntityConfig config, Object entity) {
Map<String, Collection<Object>> secondaryIndexMap = new HashMap<String, Collection<Object>>();
for (EntityIndexConfig indexConfig : getSecondaryIndexConfigs(config))
secondaryIndexMap.put(
indexConfig.getIndexName(),
hive.directory()
.getSecondaryIndexKeysWithResourceId(
config.getResourceName(), indexConfig.getIndexName(), config.getId(entity)));
return secondaryIndexMap;
}
private void updateIndexes(Object entity) {
try {
final Class<?> resolvedEntityClass = resolveEntityClass(entity.getClass());
if (resolvedEntityClass != null) {
final EntityConfig entityConfig = hiveConfig.getEntityConfig(entity.getClass());
if (indexer.idExists(entityConfig, entityConfig.getId(entity)))
indexer.updatePartitionDimensionIndexIfNeeded(
hiveConfig.getEntityConfig(resolvedEntityClass), entity);
indexer.update(entityConfig, entity);
}
} catch (HiveLockableException e) {
throw new CallbackException(e);
}
}
private void insertSecondaryIndexes(final EntityConfig config, final Object entity)
throws HiveLockableException {
Map<String, Collection<Object>> secondaryIndexMap =
Transform.toMap(
Filter.grep(
new Filter.NotNullPredicate<Entry<String, Collection<Object>>>(),
Transform.map(
new Unary<EntityIndexConfig, Entry<String, Collection<Object>>>() {
public Entry<String, Collection<Object>> f(
EntityIndexConfig entityIndexConfig) {
if (entityIndexConfig.getIndexValues(entity)
== null) // Protect against null properties
return null;
return new Pair<String, Collection<Object>>(
entityIndexConfig.getIndexName(),
entityIndexConfig.getIndexValues(entity));
}
},
getSecondaryIndexConfigs(config))));
hive.directory()
.insertSecondaryIndexKeys(
config.getResourceName(), secondaryIndexMap, config.getId(entity));
}
public boolean exists(EntityConfig config, Object entity) {
return hive.directory().doesResourceIdExist(config.getResourceName(), config.getId(entity));
}
public void delete(EntityConfig config, Object entity) throws HiveLockableException {
if (config.isPartitioningResource())
hive.directory().deletePrimaryIndexKey(config.getPrimaryIndexKey(entity));
else hive.directory().deleteResourceId(config.getResourceName(), config.getId(entity));
}