Examples with SegmentOperation io.pravega.segmentstore.server.SegmentOperation used on opensource projects

Example 6 with SegmentOperation

use of io.pravega.segmentstore.server.SegmentOperation in project pravega by pravega.

the class ContainerMetadataUpdateTransaction method acceptOperation.

/**
 * Accepts the given Operation. The Operation's effects are reflected in the pending transaction.
 * This method has no effect on Metadata Operations.
 * See OperationMetadataUpdater.acceptOperation for more details on behavior.
 *
 * @param operation The operation to accept.
 * @throws MetadataUpdateException If the given operation was rejected given the current state of the metadata.
 * @throws NullPointerException    If the operation is null.
 */
void acceptOperation(Operation operation) throws MetadataUpdateException {
    checkNotSealed();
    if (operation instanceof SegmentOperation) {
        val segmentMetadata = getSegmentUpdateTransaction(((SegmentOperation) operation).getStreamSegmentId());
        segmentMetadata.setLastUsed(operation.getSequenceNumber());
        if (operation instanceof StreamSegmentAppendOperation) {
            segmentMetadata.acceptOperation((StreamSegmentAppendOperation) operation);
        } else if (operation instanceof StreamSegmentSealOperation) {
            segmentMetadata.acceptOperation((StreamSegmentSealOperation) operation);
        } else if (operation instanceof MergeSegmentOperation) {
            MergeSegmentOperation mto = (MergeSegmentOperation) operation;
            SegmentMetadataUpdateTransaction sourceMetadata = getSegmentUpdateTransaction(mto.getSourceSegmentId());
            sourceMetadata.acceptAsSourceSegment(mto);
            sourceMetadata.setLastUsed(operation.getSequenceNumber());
            segmentMetadata.acceptAsTargetSegment(mto, sourceMetadata);
        } else if (operation instanceof UpdateAttributesOperation) {
            segmentMetadata.acceptOperation((UpdateAttributesOperation) operation);
        } else if (operation instanceof StreamSegmentTruncateOperation) {
            segmentMetadata.acceptOperation((StreamSegmentTruncateOperation) operation);
        } else if (operation instanceof DeleteSegmentOperation) {
            segmentMetadata.acceptOperation((DeleteSegmentOperation) operation);
        }
    }
    if (operation instanceof CheckpointOperationBase) {
        if (operation instanceof MetadataCheckpointOperation) {
            // A MetadataCheckpointOperation represents a valid truncation point. Record it as such.
            this.newTruncationPoints.add(operation.getSequenceNumber());
        }
        // Checkpoint operation has been serialized and we no longer need its contents. Clear it and release any
        // memory it used.
        ((CheckpointOperationBase) operation).clearContents();
    } else if (operation instanceof StreamSegmentMapOperation) {
        acceptMetadataOperation((StreamSegmentMapOperation) operation);
    }
}