Examples with DeleteFileCommitStep org.apache.gobblin.util.commit.DeleteFileCommitStep used on opensource projects

Example 1 with DeleteFileCommitStep

use of org.apache.gobblin.util.commit.DeleteFileCommitStep in project incubator-gobblin by apache.

the class UnpartitionedTableFileSet method generateCopyEntities.

// Suppress warnings for "stepPriority++" in the PrePublishStep constructor, as stepPriority may be used later
@SuppressFBWarnings("DLS_DEAD_LOCAL_STORE")
@Override
protected Collection<CopyEntity> generateCopyEntities() throws IOException {
    MultiTimingEvent multiTimer = new MultiTimingEvent(this.helper.getEventSubmitter(), "TableCopy", true);
    int stepPriority = 0;
    String fileSet = getTable().getTableName();
    List<CopyEntity> copyEntities = Lists.newArrayList();
    Optional<Table> existingTargetTable = this.helper.getExistingTargetTable();
    if (existingTargetTable.isPresent()) {
        if (!this.helper.getTargetTable().getDataLocation().equals(existingTargetTable.get().getDataLocation())) {
            switch(this.helper.getExistingEntityPolicy()) {
                case UPDATE_TABLE:
                    // Update the location of files while keep the existing table entity.
                    log.warn("Source table will not be deregistered while file locaiton has been changed, update source table's" + " file location to" + this.helper.getTargetTable().getDataLocation());
                    existingTargetTable = Optional.absent();
                    break;
                case REPLACE_TABLE:
                case REPLACE_TABLE_AND_PARTITIONS:
                    // Required to de-register the original table.
                    log.warn("Source and target table are not compatible. Will override target table " + existingTargetTable.get().getDataLocation());
                    stepPriority = this.helper.addTableDeregisterSteps(copyEntities, fileSet, stepPriority, this.helper.getTargetTable());
                    existingTargetTable = Optional.absent();
                    break;
                default:
                    log.error("Source and target table are not compatible. Aborting copy of table " + this.helper.getTargetTable(), new HiveTableLocationNotMatchException(this.helper.getTargetTable().getDataLocation(), existingTargetTable.get().getDataLocation()));
                    multiTimer.close();
                    return Lists.newArrayList();
            }
        }
    }
    stepPriority = this.helper.addSharedSteps(copyEntities, fileSet, stepPriority);
    HiveLocationDescriptor sourceLocation = HiveLocationDescriptor.forTable(getTable(), getHiveDataset().getFs(), getHiveDataset().getProperties());
    HiveLocationDescriptor desiredTargetLocation = HiveLocationDescriptor.forTable(this.helper.getTargetTable(), this.helper.getTargetFs(), getHiveDataset().getProperties());
    Optional<HiveLocationDescriptor> existingTargetLocation = existingTargetTable.isPresent() ? Optional.of(HiveLocationDescriptor.forTable(existingTargetTable.get(), this.helper.getTargetFs(), getHiveDataset().getProperties())) : Optional.<HiveLocationDescriptor>absent();
    if (this.helper.getFastTableSkip().isPresent() && this.helper.getFastTableSkip().get().apply(this.helper)) {
        log.info(String.format("Skipping copy of table %s due to fast table skip predicate.", getTable().getDbName() + "." + getTable().getTableName()));
        multiTimer.close();
        return Lists.newArrayList();
    }
    HiveCopyEntityHelper.DiffPathSet diffPathSet = HiveCopyEntityHelper.fullPathDiff(sourceLocation, desiredTargetLocation, existingTargetLocation, Optional.<Partition>absent(), multiTimer, this.helper);
    multiTimer.nextStage(HiveCopyEntityHelper.Stages.FULL_PATH_DIFF);
    // Could used to delete files for the existing snapshot
    DeleteFileCommitStep deleteStep = DeleteFileCommitStep.fromPaths(this.helper.getTargetFs(), diffPathSet.pathsToDelete, getHiveDataset().getProperties());
    copyEntities.add(new PrePublishStep(fileSet, Maps.<String, String>newHashMap(), deleteStep, stepPriority++));
    for (CopyableFile.Builder builder : this.helper.getCopyableFilesFromPaths(diffPathSet.filesToCopy, this.helper.getConfiguration(), Optional.<Partition>absent())) {
        CopyableFile fileEntity = builder.fileSet(fileSet).datasetOutputPath(desiredTargetLocation.location.toString()).build();
        this.helper.setCopyableFileDatasets(fileEntity);
        copyEntities.add(fileEntity);
    }
    multiTimer.close();
    return copyEntities;
}

Example 2 with DeleteFileCommitStep

use of org.apache.gobblin.util.commit.DeleteFileCommitStep in project incubator-gobblin by apache.

the class HivePartitionFileSet method generateCopyEntities.

@Override
protected Collection<CopyEntity> generateCopyEntities() throws IOException {
    try (Closer closer = Closer.create()) {
        MultiTimingEvent multiTimer = closer.register(new MultiTimingEvent(this.eventSubmitter, "PartitionCopy", true));
        int stepPriority = 0;
        String fileSet = HiveCopyEntityHelper.gson.toJson(this.partition.getValues());
        List<CopyEntity> copyEntities = Lists.newArrayList();
        stepPriority = hiveCopyEntityHelper.addSharedSteps(copyEntities, fileSet, stepPriority);
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.COMPUTE_TARGETS);
        Path targetPath = hiveCopyEntityHelper.getTargetLocation(hiveCopyEntityHelper.getDataset().fs, hiveCopyEntityHelper.getTargetFs(), this.partition.getDataLocation(), Optional.of(this.partition));
        Partition targetPartition = getTargetPartition(this.partition, targetPath);
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.EXISTING_PARTITION);
        if (this.existingTargetPartition.isPresent()) {
            hiveCopyEntityHelper.getTargetPartitions().remove(this.partition.getValues());
            try {
                checkPartitionCompatibility(targetPartition, this.existingTargetPartition.get());
            } catch (IOException ioe) {
                if (hiveCopyEntityHelper.getExistingEntityPolicy() != HiveCopyEntityHelper.ExistingEntityPolicy.REPLACE_PARTITIONS && hiveCopyEntityHelper.getExistingEntityPolicy() != HiveCopyEntityHelper.ExistingEntityPolicy.REPLACE_TABLE_AND_PARTITIONS) {
                    log.error("Source and target partitions are not compatible. Aborting copy of partition " + this.partition, ioe);
                    return Lists.newArrayList();
                }
                log.warn("Source and target partitions are not compatible. Will override target partition: " + ioe.getMessage());
                log.debug("Incompatibility details: ", ioe);
                stepPriority = hiveCopyEntityHelper.addPartitionDeregisterSteps(copyEntities, fileSet, stepPriority, hiveCopyEntityHelper.getTargetTable(), this.existingTargetPartition.get());
                this.existingTargetPartition = Optional.absent();
            }
        }
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.PARTITION_SKIP_PREDICATE);
        if (hiveCopyEntityHelper.getFastPartitionSkip().isPresent() && hiveCopyEntityHelper.getFastPartitionSkip().get().apply(this)) {
            log.info(String.format("Skipping copy of partition %s due to fast partition skip predicate.", this.partition.getCompleteName()));
            return Lists.newArrayList();
        }
        HiveSpec partitionHiveSpec = new SimpleHiveSpec.Builder<>(targetPath).withTable(HiveMetaStoreUtils.getHiveTable(hiveCopyEntityHelper.getTargetTable().getTTable())).withPartition(Optional.of(HiveMetaStoreUtils.getHivePartition(targetPartition.getTPartition()))).build();
        HiveRegisterStep register = new HiveRegisterStep(hiveCopyEntityHelper.getTargetURI(), partitionHiveSpec, hiveCopyEntityHelper.getHiveRegProps());
        copyEntities.add(new PostPublishStep(fileSet, Maps.<String, String>newHashMap(), register, stepPriority++));
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.CREATE_LOCATIONS);
        HiveLocationDescriptor sourceLocation = HiveLocationDescriptor.forPartition(this.partition, hiveCopyEntityHelper.getDataset().fs, this.properties);
        HiveLocationDescriptor desiredTargetLocation = HiveLocationDescriptor.forPartition(targetPartition, hiveCopyEntityHelper.getTargetFs(), this.properties);
        Optional<HiveLocationDescriptor> existingTargetLocation = this.existingTargetPartition.isPresent() ? Optional.of(HiveLocationDescriptor.forPartition(this.existingTargetPartition.get(), hiveCopyEntityHelper.getTargetFs(), this.properties)) : Optional.<HiveLocationDescriptor>absent();
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.FULL_PATH_DIFF);
        HiveCopyEntityHelper.DiffPathSet diffPathSet = HiveCopyEntityHelper.fullPathDiff(sourceLocation, desiredTargetLocation, existingTargetLocation, Optional.<Partition>absent(), multiTimer, hiveCopyEntityHelper);
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.CREATE_DELETE_UNITS);
        if (diffPathSet.pathsToDelete.size() > 0) {
            DeleteFileCommitStep deleteStep = DeleteFileCommitStep.fromPaths(hiveCopyEntityHelper.getTargetFs(), diffPathSet.pathsToDelete, hiveCopyEntityHelper.getDataset().properties);
            copyEntities.add(new PrePublishStep(fileSet, Maps.<String, String>newHashMap(), deleteStep, stepPriority++));
        }
        multiTimer.nextStage(HiveCopyEntityHelper.Stages.CREATE_COPY_UNITS);
        for (CopyableFile.Builder builder : hiveCopyEntityHelper.getCopyableFilesFromPaths(diffPathSet.filesToCopy, hiveCopyEntityHelper.getConfiguration(), Optional.of(this.partition))) {
            CopyableFile fileEntity = builder.fileSet(fileSet).checksum(new byte[0]).datasetOutputPath(desiredTargetLocation.location.toString()).build();
            this.hiveCopyEntityHelper.setCopyableFileDatasets(fileEntity);
            copyEntities.add(fileEntity);
        }
        log.info("Created {} copy entities for partition {}", copyEntities.size(), this.partition.getCompleteName());
        return copyEntities;
    }
}

Example 3 with DeleteFileCommitStep

use of org.apache.gobblin.util.commit.DeleteFileCommitStep in project incubator-gobblin by apache.

the class HiveCopyEntityHelper method addPartitionDeregisterSteps.

int addPartitionDeregisterSteps(List<CopyEntity> copyEntities, String fileSet, int initialPriority, Table table, Partition partition) throws IOException {
    int stepPriority = initialPriority;
    Collection<Path> partitionPaths = Lists.newArrayList();
    if (this.deleteMethod == DeregisterFileDeleteMethod.RECURSIVE) {
        partitionPaths = Lists.newArrayList(partition.getDataLocation());
    } else if (this.deleteMethod == DeregisterFileDeleteMethod.INPUT_FORMAT) {
        InputFormat<?, ?> inputFormat = HiveUtils.getInputFormat(partition.getTPartition().getSd());
        HiveLocationDescriptor targetLocation = new HiveLocationDescriptor(partition.getDataLocation(), inputFormat, this.targetFs, this.dataset.getProperties());
        partitionPaths = targetLocation.getPaths().keySet();
    } else if (this.deleteMethod == DeregisterFileDeleteMethod.NO_DELETE) {
        partitionPaths = Lists.newArrayList();
    }
    if (!partitionPaths.isEmpty()) {
        DeleteFileCommitStep deletePaths = DeleteFileCommitStep.fromPaths(this.targetFs, partitionPaths, this.dataset.getProperties(), table.getDataLocation());
        copyEntities.add(new PostPublishStep(fileSet, Maps.<String, String>newHashMap(), deletePaths, stepPriority++));
    }
    PartitionDeregisterStep deregister = new PartitionDeregisterStep(table.getTTable(), partition.getTPartition(), this.targetURI, this.hiveRegProps);
    copyEntities.add(new PostPublishStep(fileSet, Maps.<String, String>newHashMap(), deregister, stepPriority++));
    return stepPriority;
}

Example 4 with DeleteFileCommitStep

use of org.apache.gobblin.util.commit.DeleteFileCommitStep in project incubator-gobblin by apache.

the class ConfigBasedDatasetTest method testGetCopyableFiles.

@Test
public void testGetCopyableFiles() throws Exception {
    String sourceDir = getClass().getClassLoader().getResource("configBasedDatasetTest/src").getFile();
    String destinationDir = getClass().getClassLoader().getResource("configBasedDatasetTest/dest").getFile();
    long sourceWatermark = 100L;
    Collection<? extends CopyEntity> copyableFiles = testGetCopyableFilesHelper(sourceDir, destinationDir, sourceWatermark, false);
    Assert.assertEquals(copyableFiles.size(), 8);
    copyableFiles = testGetCopyableFilesHelper(sourceDir, destinationDir, sourceWatermark, true);
    Assert.assertEquals(copyableFiles.size(), 6);
    Set<Path> paths = Sets.newHashSet(new Path("dir1/file2"), new Path("dir1/file1"), new Path("dir2/file1"), new Path("dir2/file3"));
    for (CopyEntity copyEntity : copyableFiles) {
        if (copyEntity instanceof CopyableFile) {
            CopyableFile file = (CopyableFile) copyEntity;
            Path originRelativePath = PathUtils.relativizePath(PathUtils.getPathWithoutSchemeAndAuthority(file.getOrigin().getPath()), PathUtils.getPathWithoutSchemeAndAuthority(new Path(sourceDir)));
            Path targetRelativePath = PathUtils.relativizePath(PathUtils.getPathWithoutSchemeAndAuthority(file.getDestination()), PathUtils.getPathWithoutSchemeAndAuthority(new Path(destinationDir)));
            Assert.assertTrue(paths.contains(originRelativePath));
            Assert.assertTrue(paths.contains(targetRelativePath));
            Assert.assertEquals(originRelativePath, targetRelativePath);
        } else if (copyEntity instanceof PrePublishStep) {
            PrePublishStep pre = (PrePublishStep) copyEntity;
            Assert.assertTrue(pre.getStep() instanceof DeleteFileCommitStep);
            // need to delete this file
            Assert.assertTrue(pre.explain().indexOf("configBasedDatasetTest/dest/dir1/file1") > 0);
        } else if (copyEntity instanceof PostPublishStep) {
            PostPublishStep post = (PostPublishStep) copyEntity;
            Assert.assertTrue(post.getStep() instanceof WatermarkMetadataGenerationCommitStep);
            Assert.assertTrue(post.explain().indexOf("dest/_metadata") > 0 && post.explain().indexOf("" + sourceWatermark) > 0);
        } else {
            throw new Exception("Wrong type");
        }
    }
}

Example 5 with DeleteFileCommitStep

use of org.apache.gobblin.util.commit.DeleteFileCommitStep in project incubator-gobblin by apache.

the class RecursiveCopyableDatasetTest method classifyFiles.

private ClassifiedFiles classifyFiles(Collection<? extends CopyEntity> copyEntities) {
    Map<Path, Path> pathsToCopy = Maps.newHashMap();
    Set<Path> pathsToDelete = Sets.newHashSet();
    for (CopyEntity ce : copyEntities) {
        if (ce instanceof CopyableFile) {
            pathsToCopy.put(((CopyableFile) ce).getOrigin().getPath(), ((CopyableFile) ce).getDestination());
        }
        if (ce instanceof CommitStepCopyEntity) {
            CommitStep step = ((CommitStepCopyEntity) ce).getStep();
            if (step instanceof DeleteFileCommitStep) {
                for (FileStatus status : ((DeleteFileCommitStep) step).getPathsToDelete()) {
                    pathsToDelete.add(status.getPath());
                }
            }
        }
    }
    return new ClassifiedFiles(pathsToCopy, pathsToDelete);
}