Examples with PartitionHolder com.netflix.metacat.connector.hive.sql.PartitionHolder used on opensource projects

Example 1 with PartitionHolder

use of com.netflix.metacat.connector.hive.sql.PartitionHolder in project metacat by Netflix.

the class HiveConnectorPartitionService method getPartitionsByNames.

protected Map<String, PartitionHolder> getPartitionsByNames(final Table table, final List<String> partitionNames) {
    final String databasename = table.getDbName();
    final String tablename = table.getTableName();
    try {
        final List<Partition> partitions = metacatHiveClient.getPartitions(databasename, tablename, partitionNames);
        return partitions.stream().map(PartitionHolder::new).collect(Collectors.toMap(part -> {
            try {
                return Warehouse.makePartName(table.getPartitionKeys(), part.getPartition().getValues());
            } catch (Exception e) {
                throw new InvalidMetaException("One or more partition names are invalid.", e);
            }
        }, Function.identity()));
    } catch (Exception e) {
        throw new InvalidMetaException("One or more partition names are invalid.", e);
    }
}

Example 2 with PartitionHolder

use of com.netflix.metacat.connector.hive.sql.PartitionHolder in project metacat by Netflix.

the class HiveConnectorPartitionService method savePartitions.

/**
 * By default(checkIfExists=true and aletrIfExists=false), this method adds the provided list of partitions.
 * If a partition already exists, it is dropped first before adding it.
 * If checkIfExists=false, the method adds the partitions to the table. If a partition already exists,
 * an AlreadyExistsException error is thrown.
 * If alterIfExists=true, the method updates existing partitions and adds non-existant partitions.
 *
 * If a partition in the provided partition list has all the details, then it is used. If the details are missing,
 * then the table details are inherited. This is mostly for the storage information.
 */
@Override
public PartitionsSaveResponse savePartitions(final ConnectorRequestContext requestContext, final QualifiedName tableQName, final PartitionsSaveRequest partitionsSaveRequest) {
    final String databaseName = tableQName.getDatabaseName();
    final String tableName = tableQName.getTableName();
    final Table table;
    try {
        table = metacatHiveClient.getTableByName(databaseName, tableName);
    } catch (NoSuchObjectException exception) {
        throw new TableNotFoundException(tableQName, exception);
    } catch (TException e) {
        throw new ConnectorException(String.format("Failed getting hive table %s", tableQName), e);
    }
    // New partitions
    final List<PartitionInfo> addedPartitionInfos = Lists.newArrayList();
    final List<PartitionInfo> partitionInfos = partitionsSaveRequest.getPartitions();
    final List<String> partitionNames = partitionInfos.stream().map(part -> {
        final String partitionName = part.getName().getPartitionName();
        PartitionUtil.validatePartitionName(partitionName, getPartitionKeys(table.getPartitionKeys()));
        return partitionName;
    }).collect(Collectors.toList());
    // New partition names
    final List<String> addedPartitionNames = Lists.newArrayList();
    // Updated partition names
    final List<String> existingPartitionNames = Lists.newArrayList();
    // Existing partitions
    final List<PartitionHolder> existingPartitionHolders = Lists.newArrayList();
    // Existing partition map
    Map<String, PartitionHolder> existingPartitionMap = Collections.emptyMap();
    // 
    if (partitionsSaveRequest.getCheckIfExists() || partitionsSaveRequest.getAlterIfExists()) {
        existingPartitionMap = getPartitionsByNames(table, partitionNames);
    }
    for (PartitionInfo partitionInfo : partitionInfos) {
        final String partitionName = partitionInfo.getName().getPartitionName();
        final PartitionHolder existingPartitionHolder = existingPartitionMap.get(partitionName);
        if (existingPartitionHolder == null) {
            addedPartitionNames.add(partitionName);
            addedPartitionInfos.add(partitionInfo);
        } else {
            final String partitionUri = partitionInfo.getSerde() != null ? partitionInfo.getSerde().getUri() : null;
            final String existingPartitionUri = getPartitionUri(existingPartitionHolder);
            if (partitionUri == null || !partitionUri.equals(existingPartitionUri)) {
                existingPartitionNames.add(partitionName);
                // We need to copy the existing partition info and
                if (partitionInfo.getSerde() == null) {
                    partitionInfo.setSerde(new StorageInfo());
                }
                if (partitionInfo.getAudit() == null) {
                    partitionInfo.setAudit(new AuditInfo());
                }
                if (StringUtils.isBlank(partitionUri)) {
                    partitionInfo.getSerde().setUri(existingPartitionUri);
                }
                // unless we alterifExists
                if (partitionsSaveRequest.getAlterIfExists()) {
                    if (existingPartitionHolder.getPartition() != null) {
                        final Partition existingPartition = existingPartitionHolder.getPartition();
                        partitionInfo.getSerde().setParameters(existingPartition.getParameters());
                        partitionInfo.getAudit().setCreatedDate(HiveConnectorInfoConverter.epochSecondsToDate(existingPartition.getCreateTime()));
                        partitionInfo.getAudit().setLastModifiedDate(HiveConnectorInfoConverter.epochSecondsToDate(existingPartition.getLastAccessTime()));
                    } else {
                        final PartitionInfo existingPartitionInfo = existingPartitionHolder.getPartitionInfo();
                        if (existingPartitionInfo.getSerde() != null) {
                            partitionInfo.getSerde().setParameters(existingPartitionInfo.getSerde().getParameters());
                        }
                        if (existingPartitionInfo.getAudit() != null) {
                            partitionInfo.getAudit().setCreatedDate(existingPartitionInfo.getAudit().getCreatedDate());
                            partitionInfo.getAudit().setLastModifiedDate(existingPartitionInfo.getAudit().getLastModifiedDate());
                        }
                    }
                    existingPartitionHolder.setPartitionInfo(partitionInfo);
                    existingPartitionHolders.add(existingPartitionHolder);
                } else {
                    addedPartitionInfos.add(partitionInfo);
                }
            }
        }
    }
    final Set<String> deletePartitionNames = Sets.newHashSet();
    if (!partitionsSaveRequest.getAlterIfExists()) {
        deletePartitionNames.addAll(existingPartitionNames);
    }
    if (partitionsSaveRequest.getPartitionIdsForDeletes() != null) {
        deletePartitionNames.addAll(partitionsSaveRequest.getPartitionIdsForDeletes());
    }
    addUpdateDropPartitions(tableQName, table, partitionNames, addedPartitionInfos, existingPartitionHolders, deletePartitionNames);
    final PartitionsSaveResponse result = new PartitionsSaveResponse();
    result.setAdded(addedPartitionNames);
    result.setUpdated(existingPartitionNames);
    return result;
}

Example 3 with PartitionHolder

use of com.netflix.metacat.connector.hive.sql.PartitionHolder in project metacat by Netflix.

the class HiveConnectorPartitionService method addUpdateDropPartitions.

protected void addUpdateDropPartitions(final QualifiedName tableQName, final Table table, final List<String> partitionNames, final List<PartitionInfo> addedPartitionInfos, final List<PartitionHolder> existingPartitionInfos, final Set<String> deletePartitionNames) {
    final String databaseName = table.getDbName();
    final String tableName = table.getTableName();
    final TableInfo tableInfo = hiveMetacatConverters.toTableInfo(tableQName, table);
    try {
        final List<Partition> existingPartitions = existingPartitionInfos.stream().map(p -> hiveMetacatConverters.fromPartitionInfo(tableInfo, p.getPartitionInfo())).collect(Collectors.toList());
        final List<Partition> addedPartitions = addedPartitionInfos.stream().map(p -> hiveMetacatConverters.fromPartitionInfo(tableInfo, p)).collect(Collectors.toList());
        // If alterIfExists=true, then alter partitions if they already exists
        if (!existingPartitionInfos.isEmpty()) {
            copyTableSdToPartitionSd(existingPartitions, table);
            metacatHiveClient.alterPartitions(databaseName, tableName, existingPartitions);
        }
        // Copy the storage details from the table if the partition does not contain the details.
        copyTableSdToPartitionSd(addedPartitions, table);
        // Drop partitions with ids in 'deletePartitionNames' and add 'addedPartitionInfos' partitions
        metacatHiveClient.addDropPartitions(databaseName, tableName, addedPartitions, Lists.newArrayList(deletePartitionNames));
    } catch (NoSuchObjectException exception) {
        if (exception.getMessage() != null && exception.getMessage().startsWith("Partition doesn't exist")) {
            throw new PartitionNotFoundException(tableQName, "", exception);
        } else {
            throw new TableNotFoundException(tableQName, exception);
        }
    } catch (MetaException | InvalidObjectException exception) {
        throw new InvalidMetaException("One or more partitions are invalid.", exception);
    } catch (AlreadyExistsException e) {
        throw new PartitionAlreadyExistsException(tableQName, partitionNames, e);
    } catch (TException exception) {
        throw new ConnectorException(String.format("Failed savePartitions hive table %s", tableName), exception);
    }
}