List of usage examples for javax.persistence.criteria Root join
<Y> Join<X, Y> join(SingularAttribute<? super X, Y> attribute);
From source file:org.finra.herd.dao.impl.BusinessObjectFormatDaoImpl.java
@Override public Integer getBusinessObjectFormatMaxVersion(BusinessObjectFormatKey businessObjectFormatKey) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<Integer> criteria = builder.createQuery(Integer.class); // The criteria root is the business object format. Root<BusinessObjectFormatEntity> businessObjectFormatEntity = criteria .from(BusinessObjectFormatEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); // Create the standard restrictions (i.e. the standard where clauses). // Business object format version should be ignored when building the query restriction. Predicate queryRestriction = getQueryRestriction(builder, businessObjectFormatEntity, fileTypeEntity, businessObjectDefinitionEntity, businessObjectFormatKey, true); // Create the path. Expression<Integer> maxBusinessObjectFormatVersion = builder .max(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion)); criteria.select(maxBusinessObjectFormatVersion).where(queryRestriction); return entityManager.createQuery(criteria).getSingleResult(); }
From source file:org.finra.herd.dao.impl.BusinessObjectFormatDaoImpl.java
@Override public List<BusinessObjectFormatKey> getBusinessObjectFormatsWithFilters( BusinessObjectDefinitionKey businessObjectDefinitionKey, String businessObjectFormatUsage, boolean latestBusinessObjectFormatVersion) { // Create the criteria builder and a tuple style criteria query. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<Tuple> criteria = builder.createTupleQuery(); // The criteria root is the business object format. Root<BusinessObjectFormatEntity> businessObjectFormatEntity = criteria .from(BusinessObjectFormatEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectDefinitionEntity, NamespaceEntity> namespaceEntity = businessObjectDefinitionEntity .join(BusinessObjectDefinitionEntity_.namespace); // Get the columns. Path<String> namespaceCodeColumn = namespaceEntity.get(NamespaceEntity_.code); Path<String> businessObjectDefinitionNameColumn = businessObjectDefinitionEntity .get(BusinessObjectDefinitionEntity_.name); Path<String> businessObjectFormatUsageColumn = businessObjectFormatEntity .get(BusinessObjectFormatEntity_.usage); Path<String> fileTypeCodeColumn = fileTypeEntity.get(FileTypeEntity_.code); Path<Integer> businessObjectFormatVersionColumn = businessObjectFormatEntity .get(BusinessObjectFormatEntity_.businessObjectFormatVersion); Expression<Integer> maxBusinessObjectFormatVersionExpression = builder .max(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion)); // Create the standard restrictions (i.e. the standard where clauses). Predicate queryRestriction = builder.equal(builder.upper(namespaceEntity.get(NamespaceEntity_.code)), businessObjectDefinitionKey.getNamespace().toUpperCase()); queryRestriction = builder.and(queryRestriction, builder.equal(/*ww w. j ava 2s. c o m*/ builder.upper(businessObjectDefinitionEntity.get(BusinessObjectDefinitionEntity_.name)), businessObjectDefinitionKey.getBusinessObjectDefinitionName().toUpperCase())); // Add the business object format usage where parameter is not empty if (StringUtils.isNotEmpty(businessObjectFormatUsage)) { queryRestriction = builder.and(queryRestriction, builder.equal(builder.upper(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage)), businessObjectFormatUsage.toUpperCase())); } // Add the select clause. criteria.multiselect(namespaceCodeColumn, businessObjectDefinitionNameColumn, businessObjectFormatUsageColumn, fileTypeCodeColumn, latestBusinessObjectFormatVersion ? maxBusinessObjectFormatVersionExpression : businessObjectFormatVersionColumn); // Add the where clause. criteria.where(queryRestriction); // If only the latest (maximum) business object format versions to be returned, create and apply the group by clause. if (latestBusinessObjectFormatVersion) { List<Expression<?>> grouping = new ArrayList<>(); grouping.add(namespaceCodeColumn); grouping.add(businessObjectDefinitionNameColumn); grouping.add(businessObjectFormatUsageColumn); grouping.add(fileTypeCodeColumn); criteria.groupBy(grouping); } // Add the order by clause. List<Order> orderBy = new ArrayList<>(); orderBy.add(builder.asc(businessObjectFormatUsageColumn)); orderBy.add(builder.asc(fileTypeCodeColumn)); if (!latestBusinessObjectFormatVersion) { orderBy.add(builder.asc(businessObjectFormatVersionColumn)); } criteria.orderBy(orderBy); // Run the query to get a list of tuples back. List<Tuple> tuples = entityManager.createQuery(criteria).getResultList(); // Populate the "keys" objects from the returned tuples (i.e. 1 tuple for each row). List<BusinessObjectFormatKey> businessObjectFormatKeys = new ArrayList<>(); for (Tuple tuple : tuples) { BusinessObjectFormatKey businessObjectFormatKey = new BusinessObjectFormatKey(); businessObjectFormatKeys.add(businessObjectFormatKey); businessObjectFormatKey.setNamespace(tuple.get(namespaceCodeColumn)); businessObjectFormatKey.setBusinessObjectDefinitionName(tuple.get(businessObjectDefinitionNameColumn)); businessObjectFormatKey.setBusinessObjectFormatUsage(tuple.get(businessObjectFormatUsageColumn)); businessObjectFormatKey.setBusinessObjectFormatFileType(tuple.get(fileTypeCodeColumn)); businessObjectFormatKey.setBusinessObjectFormatVersion( tuple.get(latestBusinessObjectFormatVersion ? maxBusinessObjectFormatVersionExpression : businessObjectFormatVersionColumn)); } return businessObjectFormatKeys; }
From source file:org.finra.herd.dao.impl.BusinessObjectFormatDaoImpl.java
@Override public List<BusinessObjectFormatEntity> getLatestVersionBusinessObjectFormatsByBusinessObjectDefinition( BusinessObjectDefinitionKey businessObjectDefinitionKey) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<BusinessObjectFormatEntity> criteria = builder.createQuery(BusinessObjectFormatEntity.class); // The criteria root is the business object format. Root<BusinessObjectFormatEntity> businessObjectFormatEntity = criteria .from(BusinessObjectFormatEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectDefinitionEntity, NamespaceEntity> namespaceEntity = businessObjectDefinitionEntity .join(BusinessObjectDefinitionEntity_.namespace); // Create the standard restrictions (i.e. the standard where clauses). Predicate queryRestriction = builder.equal(builder.upper(namespaceEntity.get(NamespaceEntity_.code)), businessObjectDefinitionKey.getNamespace().toUpperCase()); queryRestriction = builder.and(queryRestriction, builder.equal(/*from w w w .j av a2 s . com*/ builder.upper(businessObjectDefinitionEntity.get(BusinessObjectDefinitionEntity_.name)), businessObjectDefinitionKey.getBusinessObjectDefinitionName().toUpperCase())); // Add the order by clause. List<Order> orderBy = new ArrayList<>(); orderBy.add(builder.asc(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage))); orderBy.add(builder.asc(fileTypeEntity.get(FileTypeEntity_.code))); queryRestriction = builder.and(queryRestriction, builder.equal(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.latestVersion), true)); criteria.orderBy(orderBy); // Add the where clause. criteria.where(queryRestriction); return entityManager.createQuery(criteria).getResultList(); }
From source file:org.finra.herd.dao.impl.ExpectedPartitionValueDaoImpl.java
@Override public ExpectedPartitionValueEntity getExpectedPartitionValue( ExpectedPartitionValueKey expectedPartitionValueKey, int offset) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<ExpectedPartitionValueEntity> criteria = builder .createQuery(ExpectedPartitionValueEntity.class); // The criteria root is the expected partition value. Root<ExpectedPartitionValueEntity> expectedPartitionValueEntity = criteria .from(ExpectedPartitionValueEntity.class); // Join to the other tables we can filter on. Join<ExpectedPartitionValueEntity, PartitionKeyGroupEntity> partitionKeyGroupEntity = expectedPartitionValueEntity .join(ExpectedPartitionValueEntity_.partitionKeyGroup); // Add a restriction to filter case insensitive groups that match the user specified group. Predicate whereRestriction = builder.equal( builder.upper(partitionKeyGroupEntity.get(PartitionKeyGroupEntity_.partitionKeyGroupName)), expectedPartitionValueKey.getPartitionKeyGroupName().toUpperCase()); // Depending on the offset, we might need to order the records in the query. Order orderByExpectedPartitionValue = null; // Add additional restrictions to handle expected partition value and an optional offset. if (offset == 0) { // Since there is no offset, we need to match the expected partition value exactly. whereRestriction = builder.and(whereRestriction, builder.equal(expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue), expectedPartitionValueKey.getExpectedPartitionValue())); } else if (offset > 0) { // For a positive offset value, add a restriction to filter expected partition values that are >= the user specified expected partition value. whereRestriction = builder.and(whereRestriction, builder.greaterThanOrEqualTo( expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue), expectedPartitionValueKey.getExpectedPartitionValue())); // Order by expected partition value in ascending order. orderByExpectedPartitionValue = builder .asc(expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue)); } else {/* ww w .ja v a 2s . c o m*/ // For a negative offset value, add a restriction to filter expected partition values that are <= the user specified expected partition value. whereRestriction = builder.and(whereRestriction, builder.lessThanOrEqualTo( expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue), expectedPartitionValueKey.getExpectedPartitionValue())); // Order by expected partition value in descending order. orderByExpectedPartitionValue = builder .desc(expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue)); } // Add the clauses for the query and execute the query. if (offset == 0) { criteria.select(expectedPartitionValueEntity).where(whereRestriction); return executeSingleResultQuery(criteria, String.format( "Found more than one expected partition value with parameters {partitionKeyGroupName=\"%s\", expectedPartitionValue=\"%s\"}.", expectedPartitionValueKey.getPartitionKeyGroupName(), expectedPartitionValueKey.getExpectedPartitionValue())); } else { criteria.select(expectedPartitionValueEntity).where(whereRestriction) .orderBy(orderByExpectedPartitionValue); List<ExpectedPartitionValueEntity> resultList = entityManager.createQuery(criteria) .setFirstResult(Math.abs(offset)).setMaxResults(1).getResultList(); return resultList.size() > 0 ? resultList.get(0) : null; } }
From source file:org.finra.herd.dao.impl.ExpectedPartitionValueDaoImpl.java
@Override public List<ExpectedPartitionValueEntity> getExpectedPartitionValuesByGroupAndRange( String partitionKeyGroupName, PartitionValueRange partitionValueRange) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<ExpectedPartitionValueEntity> criteria = builder .createQuery(ExpectedPartitionValueEntity.class); // The criteria root is the expected partition value. Root<ExpectedPartitionValueEntity> expectedPartitionValueEntity = criteria .from(ExpectedPartitionValueEntity.class); // Join to the other tables we can filter on. Join<ExpectedPartitionValueEntity, PartitionKeyGroupEntity> partitionKeyGroupEntity = expectedPartitionValueEntity .join(ExpectedPartitionValueEntity_.partitionKeyGroup); // Add a restriction to filter case insensitive groups that match the user specified group. Predicate whereRestriction = builder.equal( builder.upper(partitionKeyGroupEntity.get(PartitionKeyGroupEntity_.partitionKeyGroupName)), partitionKeyGroupName.toUpperCase()); // If we have a possible partition value range, we need to add additional restrictions. if (partitionValueRange != null) { // Add a restriction to filter values that are >= the user specified range start value. if (StringUtils.isNotBlank(partitionValueRange.getStartPartitionValue())) { whereRestriction = builder.and(whereRestriction, builder.greaterThanOrEqualTo( expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue), partitionValueRange.getStartPartitionValue())); }/*ww w .ja va 2 s .c om*/ // Add a restriction to filter values that are <= the user specified range end value. if (StringUtils.isNotBlank(partitionValueRange.getEndPartitionValue())) { whereRestriction = builder.and(whereRestriction, builder.lessThanOrEqualTo( expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue), partitionValueRange.getEndPartitionValue())); } } // Order the results by partition value. Order orderByValue = builder .asc(expectedPartitionValueEntity.get(ExpectedPartitionValueEntity_.partitionValue)); // Add the clauses for the query. criteria.select(expectedPartitionValueEntity).where(whereRestriction).orderBy(orderByValue); // Execute the query and return the results. return entityManager.createQuery(criteria).getResultList(); }
From source file:org.finra.herd.dao.impl.HerdDaoImpl.java
/** * Retrieves partition value per specified parameters that includes the aggregate function. * * @param partitionColumnPosition the partition column position (1-based numbering) * @param businessObjectFormatKey the business object format key (case-insensitive). If a business object format version isn't specified, the latest * available format version for each partition value will be used. * @param businessObjectDataVersion the business object data version. If a business object data version isn't specified, the latest data version based on * the specified business object data status will be used for each partition value. * @param businessObjectDataStatus the business object data status. This parameter is ignored when the business object data version is specified. * @param storageNames the list of storages (case-insensitive) * @param aggregateFunction the aggregate function to use against partition values * @param upperBoundPartitionValue the optional inclusive upper bound for the maximum available partition value * @param lowerBoundPartitionValue the optional inclusive lower bound for the maximum available partition value * * @return the partition value/*from ww w . ja v a2 s.c o m*/ */ private String getBusinessObjectDataPartitionValue(int partitionColumnPosition, BusinessObjectFormatKey businessObjectFormatKey, Integer businessObjectDataVersion, String businessObjectDataStatus, List<String> storageNames, AggregateFunction aggregateFunction, String upperBoundPartitionValue, String lowerBoundPartitionValue) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<String> criteria = builder.createQuery(String.class); // The criteria root is the business object data. Root<BusinessObjectDataEntity> businessObjectDataEntity = criteria.from(BusinessObjectDataEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> businessObjectFormatEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.businessObjectFormat); Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); Join<BusinessObjectDefinitionEntity, NamespaceEntity> namespaceEntity = businessObjectDefinitionEntity .join(BusinessObjectDefinitionEntity_.namespace); Join<BusinessObjectDataEntity, StorageUnitEntity> storageUnitEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.storageUnits); Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage); // Create the path. Expression<String> partitionValue; SingularAttribute<BusinessObjectDataEntity, String> singleValuedAttribute = BUSINESS_OBJECT_DATA_PARTITIONS .get(partitionColumnPosition - 1); switch (aggregateFunction) { case GREATEST: partitionValue = builder.greatest(businessObjectDataEntity.get(singleValuedAttribute)); break; case LEAST: partitionValue = builder.least(businessObjectDataEntity.get(singleValuedAttribute)); break; default: throw new IllegalArgumentException("Invalid aggregate function found: \"" + aggregateFunction + "\"."); } // Create the standard restrictions (i.e. the standard where clauses). Predicate mainQueryRestriction = builder.equal(builder.upper(namespaceEntity.get(NamespaceEntity_.code)), businessObjectFormatKey.getNamespace().toUpperCase()); mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal( builder.upper(businessObjectDefinitionEntity.get(BusinessObjectDefinitionEntity_.name)), businessObjectFormatKey.getBusinessObjectDefinitionName().toUpperCase())); mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal(builder.upper(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage)), businessObjectFormatKey.getBusinessObjectFormatUsage().toUpperCase())); mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal(builder.upper(fileTypeEntity.get(FileTypeEntity_.code)), businessObjectFormatKey.getBusinessObjectFormatFileType().toUpperCase())); // If a business object format version was specified, use it. if (businessObjectFormatKey.getBusinessObjectFormatVersion() != null) { mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal( businessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion), businessObjectFormatKey.getBusinessObjectFormatVersion())); } // If a data version was specified, use it. if (businessObjectDataVersion != null) { mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal( businessObjectDataEntity.get(BusinessObjectDataEntity_.version), businessObjectDataVersion)); } // Business object data version is not specified, so get the latest one as per specified business object data status in the specified storage. else { Subquery<Integer> subQuery = getMaximumBusinessObjectDataVersionSubQuery(builder, criteria, businessObjectDataEntity, businessObjectFormatEntity, businessObjectDataStatus, storageEntity); mainQueryRestriction = builder.and(mainQueryRestriction, builder.in(businessObjectDataEntity.get(BusinessObjectDataEntity_.version)).value(subQuery)); } // Add an inclusive upper bound partition value restriction if specified. if (upperBoundPartitionValue != null) { mainQueryRestriction = builder.and(mainQueryRestriction, builder.lessThanOrEqualTo( businessObjectDataEntity.get(singleValuedAttribute), upperBoundPartitionValue)); } // Add an inclusive lower bound partition value restriction if specified. if (lowerBoundPartitionValue != null) { mainQueryRestriction = builder.and(mainQueryRestriction, builder.greaterThanOrEqualTo( businessObjectDataEntity.get(singleValuedAttribute), lowerBoundPartitionValue)); } // Add a storage name restriction to the main query where clause. List<String> uppercaseStorageNames = new ArrayList<>(); for (String storageName : storageNames) { uppercaseStorageNames.add(storageName.toUpperCase()); } mainQueryRestriction = builder.and(mainQueryRestriction, builder.upper(storageEntity.get(StorageEntity_.name)).in(uppercaseStorageNames)); criteria.select(partitionValue).where(mainQueryRestriction); return entityManager.createQuery(criteria).getSingleResult(); }
From source file:org.finra.herd.dao.impl.HerdDaoImpl.java
/** * {@inheritDoc}/* w w w.j a v a 2 s . c o m*/ */ @Override public List<BusinessObjectDataEntity> getBusinessObjectDataFromStorageOlderThan(String storageName, int thresholdMinutes, List<String> businessObjectDataStatusesToIgnore) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<BusinessObjectDataEntity> criteria = builder.createQuery(BusinessObjectDataEntity.class); // The criteria root is the business object data. Root<BusinessObjectDataEntity> businessObjectDataEntity = criteria.from(BusinessObjectDataEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectDataEntity, StorageUnitEntity> storageUnitEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.storageUnits); Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage); Join<BusinessObjectDataEntity, BusinessObjectDataStatusEntity> businessObjectDataStatusEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.status); // Compute threshold timestamp based on the current database timestamp and threshold minutes. Timestamp thresholdTimestamp = HerdDateUtils.addMinutes(getCurrentTimestamp(), -thresholdMinutes); // Create the standard restrictions (i.e. the standard where clauses). Predicate queryRestriction = builder.equal(builder.upper(storageEntity.get(StorageEntity_.name)), storageName.toUpperCase()); queryRestriction = builder.and(queryRestriction, builder.not(businessObjectDataStatusEntity .get(BusinessObjectDataStatusEntity_.code).in(businessObjectDataStatusesToIgnore))); queryRestriction = builder.and(queryRestriction, builder.lessThanOrEqualTo( businessObjectDataEntity.get(BusinessObjectDataEntity_.createdOn), thresholdTimestamp)); // Order the results by file path. Order orderByCreatedOn = builder.asc(businessObjectDataEntity.get(BusinessObjectDataEntity_.createdOn)); // Add the clauses for the query. criteria.select(businessObjectDataEntity).where(queryRestriction).orderBy(orderByCreatedOn); return entityManager.createQuery(criteria).getResultList(); }
From source file:org.finra.herd.dao.impl.HerdDaoImpl.java
/** * {@inheritDoc}//from www .ja v a 2 s .c o m */ @Override public Map<BusinessObjectDataEntity, StoragePolicyEntity> getBusinessObjectDataEntitiesMatchingStoragePolicies( StoragePolicyPriorityLevel storagePolicyPriorityLevel, List<String> supportedBusinessObjectDataStatuses, int startPosition, int maxResult) { // Create the criteria builder and a tuple style criteria query. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<Tuple> criteria = builder.createTupleQuery(); // The criteria root is the business object data. Root<BusinessObjectDataEntity> businessObjectDataEntity = criteria.from(BusinessObjectDataEntity.class); Root<StoragePolicyEntity> storagePolicyEntity = criteria.from(StoragePolicyEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectDataEntity, StorageUnitEntity> storageUnitEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.storageUnits); Join<BusinessObjectDataEntity, BusinessObjectDataStatusEntity> businessObjectDataStatusEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.status); Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> businessObjectFormatEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.businessObjectFormat); Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); // Create main query restrictions based on the specified parameters. List<Predicate> mainQueryPredicates = new ArrayList<>(); // Add a restriction on business object definition. mainQueryPredicates.add(storagePolicyPriorityLevel.isBusinessObjectDefinitionIsNull() ? builder.isNull(storagePolicyEntity.get(StoragePolicyEntity_.businessObjectDefinition)) : builder.equal(businessObjectDefinitionEntity, storagePolicyEntity.get(StoragePolicyEntity_.businessObjectDefinition))); // Add a restriction on business object format usage. mainQueryPredicates.add(storagePolicyPriorityLevel.isUsageIsNull() ? builder.isNull(storagePolicyEntity.get(StoragePolicyEntity_.usage)) : builder.equal(builder.upper(businessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage)), builder.upper(storagePolicyEntity.get(StoragePolicyEntity_.usage)))); // Add a restriction on business object format file type. mainQueryPredicates.add(storagePolicyPriorityLevel.isFileTypeIsNull() ? builder.isNull(storagePolicyEntity.get(StoragePolicyEntity_.fileType)) : builder.equal(fileTypeEntity, storagePolicyEntity.get(StoragePolicyEntity_.fileType))); // Add a restriction on storage policy filter storage. mainQueryPredicates.add(builder.equal(storageUnitEntity.get(StorageUnitEntity_.storage), storagePolicyEntity.get(StoragePolicyEntity_.storage))); // Add a restriction on supported business object data statuses. mainQueryPredicates.add(businessObjectDataStatusEntity.get(BusinessObjectDataStatusEntity_.code) .in(supportedBusinessObjectDataStatuses)); // Build a subquery to eliminate business object data instances that already have storage unit in the storage policy destination storage. Subquery<BusinessObjectDataEntity> subquery = criteria.subquery(BusinessObjectDataEntity.class); Root<BusinessObjectDataEntity> subBusinessObjectDataEntity = subquery.from(BusinessObjectDataEntity.class); subquery.select(subBusinessObjectDataEntity); // Join to the other tables we can filter on for the subquery. Join<BusinessObjectDataEntity, StorageUnitEntity> subStorageUnitEntity = subBusinessObjectDataEntity .join(BusinessObjectDataEntity_.storageUnits); // Create the subquery restrictions based on the main query and storage policy destination storage. List<Predicate> subQueryPredicates = new ArrayList<>(); subQueryPredicates.add(builder.equal(subBusinessObjectDataEntity, businessObjectDataEntity)); subQueryPredicates.add(builder.equal(subStorageUnitEntity.get(StorageUnitEntity_.storage), storagePolicyEntity.get(StoragePolicyEntity_.destinationStorage))); // Add all clauses to the subquery. subquery.select(subBusinessObjectDataEntity).where(subQueryPredicates.toArray(new Predicate[] {})); // Add a main query restriction based on the subquery to eliminate business object data // instances that already have storage unit in the storage policy destination storage. mainQueryPredicates.add(builder.not(builder.exists(subquery))); // Order the results by business object data "created on" value. Order orderByCreatedOn = builder.asc(businessObjectDataEntity.get(BusinessObjectDataEntity_.createdOn)); // Add the select clause to the main query. criteria.multiselect(businessObjectDataEntity, storagePolicyEntity); // Add the where clause to the main query. criteria.where(mainQueryPredicates.toArray(new Predicate[] {})); // Add the order by clause to the main query. criteria.orderBy(orderByCreatedOn); // Run the query to get a list of tuples back. List<Tuple> tuples = entityManager.createQuery(criteria).setFirstResult(startPosition) .setMaxResults(maxResult).getResultList(); // Populate the result map from the returned tuples (i.e. 1 tuple for each row). Map<BusinessObjectDataEntity, StoragePolicyEntity> result = new LinkedHashMap<>(); for (Tuple tuple : tuples) { // Since multiple storage policies can contain identical filters, we add the below check to select each business object data instance only once. if (!result.containsKey(tuple.get(businessObjectDataEntity))) { result.put(tuple.get(businessObjectDataEntity), tuple.get(storagePolicyEntity)); } } return result; }
From source file:org.finra.herd.dao.impl.HerdDaoImpl.java
/** * Retrieves a list of storage unit entities per specified parameters. This method processes a sublist of partition filters specified by * partitionFilterSubListFromIndex and partitionFilterSubListSize parameters. * * @param businessObjectFormatKey the business object format key (case-insensitive). If a business object format version isn't specified, the latest * available format version for each partition value will be used * @param partitionFilters the list of partition filter to be used to select business object data instances. Each partition filter contains a list of * primary and sub-partition values in the right order up to the maximum partition levels allowed by business object data registration - with partition * values for the relative partitions not to be used for selection passed as nulls * @param businessObjectDataVersion the business object data version. If a business object data version isn't specified, the latest data version based on * the specified business object data status is returned * @param businessObjectDataStatus the business object data status. This parameter is ignored when the business object data version is specified. When * business object data version and business object data status both are not specified, the latest data version for each set of partition values will be * used regardless of the status/*from w w w . ja v a 2 s. co m*/ * @param storageNames the list of storage names where the business object data storage units should be looked for (case-insensitive) * @param storagePlatformType the optional storage platform type, e.g. S3 for Hive DDL. It is ignored when the list of storages is not empty * @param excludedStoragePlatformType the optional storage platform type to be excluded from search. It is ignored when the list of storages is not empty or * the storage platform type is specified * @param partitionFilterSubListFromIndex the index of the first element in the partition filter sublist * @param partitionFilterSubListSize the size of the partition filter sublist * @param selectOnlyAvailableStorageUnits specifies if only available storage units will be selected or any storage units regardless of their status * * @return the list of storage unit entities sorted by partition values */ private List<StorageUnitEntity> getStorageUnitsByPartitionFiltersAndStorages( BusinessObjectFormatKey businessObjectFormatKey, List<List<String>> partitionFilters, Integer businessObjectDataVersion, String businessObjectDataStatus, List<String> storageNames, String storagePlatformType, String excludedStoragePlatformType, boolean selectOnlyAvailableStorageUnits, int partitionFilterSubListFromIndex, int partitionFilterSubListSize) { // Create the criteria builder and the criteria. CriteriaBuilder builder = entityManager.getCriteriaBuilder(); CriteriaQuery<Tuple> criteria = builder.createTupleQuery(); // The criteria root is the storage unit. Root<StorageUnitEntity> storageUnitEntity = criteria.from(StorageUnitEntity.class); // Join to the other tables we can filter on. Join<StorageUnitEntity, BusinessObjectDataEntity> businessObjectDataEntity = storageUnitEntity .join(StorageUnitEntity_.businessObjectData); Join<StorageUnitEntity, StorageEntity> storageEntity = storageUnitEntity.join(StorageUnitEntity_.storage); Join<StorageEntity, StoragePlatformEntity> storagePlatformEntity = storageEntity .join(StorageEntity_.storagePlatform); Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> businessObjectFormatEntity = businessObjectDataEntity .join(BusinessObjectDataEntity_.businessObjectFormat); Join<BusinessObjectFormatEntity, FileTypeEntity> fileTypeEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity = businessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); Join<StorageUnitEntity, StorageUnitStatusEntity> storageUnitStatusEntity = storageUnitEntity .join(StorageUnitEntity_.status); // Create the standard restrictions (i.e. the standard where clauses). // Create a standard restriction based on the business object format key values. // Please note that we specify not to ignore the business object format version. Predicate mainQueryRestriction = getQueryRestriction(builder, businessObjectFormatEntity, fileTypeEntity, businessObjectDefinitionEntity, businessObjectFormatKey, false); // If a format version was not specified, use the latest available for this set of partition values. if (businessObjectFormatKey.getBusinessObjectFormatVersion() == null) { // Get the latest available format version for this set of partition values and per other restrictions. Subquery<Integer> subQuery = getMaximumBusinessObjectFormatVersionSubQuery(builder, criteria, businessObjectDefinitionEntity, businessObjectFormatEntity, fileTypeEntity, businessObjectDataEntity, businessObjectDataVersion, businessObjectDataStatus, storageEntity, selectOnlyAvailableStorageUnits); mainQueryRestriction = builder.and(mainQueryRestriction, builder.in( businessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion)) .value(subQuery)); } // Add restriction as per specified primary and/or sub-partition values. mainQueryRestriction = builder.and(mainQueryRestriction, getQueryRestrictionOnPartitionValues(builder, businessObjectDataEntity, partitionFilters.subList(partitionFilterSubListFromIndex, partitionFilterSubListFromIndex + partitionFilterSubListSize))); // If a data version was specified, use it. Otherwise, use the latest one as per specified business object data status. if (businessObjectDataVersion != null) { mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal( businessObjectDataEntity.get(BusinessObjectDataEntity_.version), businessObjectDataVersion)); } else { // Business object data version is not specified, so get the latest one as per specified business object data status, if any. // Meaning, when both business object data version and business object data status are not specified, we just return // the latest business object data version in the specified storage. Subquery<Integer> subQuery = getMaximumBusinessObjectDataVersionSubQuery(builder, criteria, businessObjectDataEntity, businessObjectFormatEntity, businessObjectDataStatus, storageEntity); mainQueryRestriction = builder.and(mainQueryRestriction, builder.in(businessObjectDataEntity.get(BusinessObjectDataEntity_.version)).value(subQuery)); } // If specified, add restriction on storage. if (!CollectionUtils.isEmpty(storageNames)) { // Add a storage name restriction to the main query where clause. List<String> uppercaseStorageNames = new ArrayList<>(); for (String storageName : storageNames) { uppercaseStorageNames.add(storageName.toUpperCase()); } mainQueryRestriction = builder.and(mainQueryRestriction, builder.upper(storageEntity.get(StorageEntity_.name)).in(uppercaseStorageNames)); } else if (StringUtils.isNotBlank(storagePlatformType)) { // Select storage units only from the storages of the specified storage platform type. mainQueryRestriction = builder.and(mainQueryRestriction, builder.equal(storagePlatformEntity.get(StoragePlatformEntity_.name), storagePlatformType)); } else if (StringUtils.isNotBlank(excludedStoragePlatformType)) { // Ignore any storages of the excluded storage platform type. mainQueryRestriction = builder.and(mainQueryRestriction, builder .notEqual(storagePlatformEntity.get(StoragePlatformEntity_.name), excludedStoragePlatformType)); } // If specified, add a restriction on storage unit status availability flag. if (selectOnlyAvailableStorageUnits) { mainQueryRestriction = builder.and(mainQueryRestriction, builder.isTrue(storageUnitStatusEntity.get(StorageUnitStatusEntity_.available))); } // Order by partitions and storage names. List<Order> orderBy = new ArrayList<>(); for (SingularAttribute<BusinessObjectDataEntity, String> businessObjectDataPartition : BUSINESS_OBJECT_DATA_PARTITIONS) { orderBy.add(builder.asc(businessObjectDataEntity.get(businessObjectDataPartition))); } orderBy.add(builder.asc(storageEntity.get(StorageEntity_.name))); // Add the clauses for the query. // Please note that we use multiselect here in order to eliminate the Hibernate N+1 SELECT's problem, // happening when we select storage unit entities and access their relative business object data entities. // This is an alternative approach, since adding @Fetch(FetchMode.JOIN) failed to address the issue. criteria.multiselect(storageUnitEntity, storageUnitStatusEntity, storageEntity, storagePlatformEntity, businessObjectDataEntity, businessObjectFormatEntity).where(mainQueryRestriction).orderBy(orderBy); // Run the query to get a list of tuples back. List<Tuple> tuples = entityManager.createQuery(criteria).getResultList(); // Build a list of storage unit entities to return. List<StorageUnitEntity> storageUnitEntities = new ArrayList<>(); for (Tuple tuple : tuples) { storageUnitEntities.add(tuple.get(storageUnitEntity)); } return storageUnitEntities; }
From source file:org.finra.herd.dao.impl.HerdDaoImpl.java
/** * Builds a sub-query to select the maximum business object data version. * * @param builder the criteria builder//ww w. j ava2 s.co m * @param criteria the criteria query * @param businessObjectDefinitionEntity the business object definition entity that appears in the from clause of the main query * @param businessObjectFormatEntity the business object format entity that appears in the from clause of the main query * @param fileTypeEntity the file type entity that appears in the from clause of the main query * @param businessObjectDataEntity the business object data entity that appears in the from clause of the main query * @param businessObjectDataVersion the business object data version. If a business object data version isn't specified, the latest data version based on * the specified business object data status is returned * @param businessObjectDataStatus the business object data status. This parameter is ignored when the business object data version is specified. When * business object data version and business object data status both are not specified, the latest data version for each set of partition values will be * used regardless of the status * @param selectOnlyAvailableStorageUnits specifies if only available storage units will be selected or any storage units regardless of their status * * @return the sub-query to select the maximum business object data version */ private Subquery<Integer> getMaximumBusinessObjectFormatVersionSubQuery(CriteriaBuilder builder, CriteriaQuery<?> criteria, From<?, BusinessObjectDefinitionEntity> businessObjectDefinitionEntity, From<?, BusinessObjectFormatEntity> businessObjectFormatEntity, From<?, FileTypeEntity> fileTypeEntity, From<?, BusinessObjectDataEntity> businessObjectDataEntity, Integer businessObjectDataVersion, String businessObjectDataStatus, From<?, StorageEntity> storageEntity, boolean selectOnlyAvailableStorageUnits) { // Business object format version is not specified, so just use the latest available for this set of partition values. Subquery<Integer> subQuery = criteria.subquery(Integer.class); // The criteria root is the business object data. Root<BusinessObjectDataEntity> subBusinessObjectDataEntity = subQuery.from(BusinessObjectDataEntity.class); // Join to the other tables we can filter on. Join<BusinessObjectDataEntity, StorageUnitEntity> subStorageUnitEntity = subBusinessObjectDataEntity .join(BusinessObjectDataEntity_.storageUnits); Join<StorageUnitEntity, StorageEntity> subStorageEntity = subStorageUnitEntity .join(StorageUnitEntity_.storage); Join<BusinessObjectDataEntity, BusinessObjectFormatEntity> subBusinessObjectFormatEntity = subBusinessObjectDataEntity .join(BusinessObjectDataEntity_.businessObjectFormat); Join<BusinessObjectFormatEntity, BusinessObjectDefinitionEntity> subBusinessObjectDefinitionEntity = subBusinessObjectFormatEntity .join(BusinessObjectFormatEntity_.businessObjectDefinition); Join<BusinessObjectFormatEntity, FileTypeEntity> subBusinessObjectFormatFileTypeEntity = subBusinessObjectFormatEntity .join(BusinessObjectFormatEntity_.fileType); Join<BusinessObjectDataEntity, BusinessObjectDataStatusEntity> subBusinessObjectDataStatusEntity = subBusinessObjectDataEntity .join(BusinessObjectDataEntity_.status); Join<StorageUnitEntity, StorageUnitStatusEntity> subStorageUnitStatusEntity = subStorageUnitEntity .join(StorageUnitEntity_.status); // Create the standard restrictions (i.e. the standard where clauses). Predicate subQueryRestriction = builder.equal(subBusinessObjectDefinitionEntity, businessObjectDefinitionEntity); subQueryRestriction = builder.and(subQueryRestriction, builder.equal(subBusinessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage), businessObjectFormatEntity.get(BusinessObjectFormatEntity_.usage))); subQueryRestriction = builder.and(subQueryRestriction, builder.equal(subBusinessObjectFormatFileTypeEntity, fileTypeEntity)); // Create and add standard restrictions on primary and sub-partition values. subQueryRestriction = builder.and(subQueryRestriction, getQueryRestrictionOnPartitionValues(builder, subBusinessObjectDataEntity, businessObjectDataEntity)); // Add restrictions on business object data version and business object data status. Predicate subQueryRestrictionOnBusinessObjectDataVersionAndStatus = getQueryRestrictionOnBusinessObjectDataVersionAndStatus( builder, subBusinessObjectDataEntity, subBusinessObjectDataStatusEntity, businessObjectDataVersion, businessObjectDataStatus); if (subQueryRestrictionOnBusinessObjectDataVersionAndStatus != null) { subQueryRestriction = builder.and(subQueryRestriction, subQueryRestrictionOnBusinessObjectDataVersionAndStatus); } // Create and add a standard restriction on storage. subQueryRestriction = builder.and(subQueryRestriction, builder.equal(subStorageEntity, storageEntity)); // If specified, add a restriction on storage unit status availability flag. if (selectOnlyAvailableStorageUnits) { subQueryRestriction = builder.and(subQueryRestriction, builder.isTrue(subStorageUnitStatusEntity.get(StorageUnitStatusEntity_.available))); } // Add all of the clauses to the subquery. subQuery.select(builder .max(subBusinessObjectFormatEntity.get(BusinessObjectFormatEntity_.businessObjectFormatVersion))) .where(subQueryRestriction); return subQuery; }