Examples with VersionsClient org.apache.nifi.toolkit.cli.impl.client.nifi.VersionsClient used on opensource projects

Example 1 with VersionsClient

use of org.apache.nifi.toolkit.cli.impl.client.nifi.VersionsClient in project nifi by apache.

the class PGChangeVersion method doExecute.

@Override
public VoidResult doExecute(final NiFiClient client, final Properties properties) throws NiFiClientException, IOException, MissingOptionException, CommandException {
    final String pgId = getRequiredArg(properties, CommandOption.PG_ID);
    final VersionsClient versionsClient = client.getVersionsClient();
    final VersionControlInformationEntity existingVersionControlInfo = versionsClient.getVersionControlInfo(pgId);
    final VersionControlInformationDTO existingVersionControlDTO = existingVersionControlInfo.getVersionControlInformation();
    if (existingVersionControlDTO == null) {
        throw new NiFiClientException("Process group is not under version control");
    }
    // start with the version specified in the arguments
    Integer newVersion = getIntArg(properties, CommandOption.FLOW_VERSION);
    // if no version was specified, automatically determine the latest and change to that
    if (newVersion == null) {
        newVersion = getLatestVersion(client, existingVersionControlDTO);
        if (newVersion.intValue() == existingVersionControlDTO.getVersion().intValue()) {
            throw new NiFiClientException("Process group already at latest version");
        }
    }
    // update the version in the existing DTO to the new version so we can submit it back
    existingVersionControlDTO.setVersion(newVersion);
    // initiate the version change which creates an update request that must be checked for completion
    final VersionedFlowUpdateRequestEntity initialUpdateRequest = versionsClient.updateVersionControlInfo(pgId, existingVersionControlInfo);
    // poll the update request for up to 30 seconds to see if it has completed
    // if it doesn't complete then an exception will be thrown, but in either case the request will be deleted
    final String updateRequestId = initialUpdateRequest.getRequest().getRequestId();
    try {
        boolean completed = false;
        for (int i = 0; i < 30; i++) {
            final VersionedFlowUpdateRequestEntity updateRequest = versionsClient.getUpdateRequest(updateRequestId);
            if (updateRequest != null && updateRequest.getRequest().isComplete()) {
                completed = true;
                break;
            } else {
                try {
                    if (getContext().isInteractive()) {
                        println("Waiting for update request to complete...");
                    }
                    Thread.sleep(2000);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
        if (!completed) {
            throw new NiFiClientException("Unable to change version of process group, cancelling request");
        }
    } finally {
        versionsClient.deleteUpdateRequest(updateRequestId);
    }
    return VoidResult.getInstance();
}

Example 2 with VersionsClient

use of org.apache.nifi.toolkit.cli.impl.client.nifi.VersionsClient in project nifi by apache.

the class PGGetAllVersions method doExecute.

@Override
public VersionedFlowSnapshotMetadataSetResult doExecute(final NiFiClient client, final Properties properties) throws NiFiClientException, IOException, MissingOptionException {
    final String pgId = getRequiredArg(properties, CommandOption.PG_ID);
    final VersionsClient versionsClient = client.getVersionsClient();
    final VersionControlInformationEntity existingVersionControlInfo = versionsClient.getVersionControlInfo(pgId);
    final VersionControlInformationDTO existingVersionControlDTO = existingVersionControlInfo.getVersionControlInformation();
    if (existingVersionControlDTO == null) {
        throw new NiFiClientException("Process group is not under version control");
    }
    final String registryId = existingVersionControlDTO.getRegistryId();
    final String bucketId = existingVersionControlDTO.getBucketId();
    final String flowId = existingVersionControlDTO.getFlowId();
    final FlowClient flowClient = client.getFlowClient();
    final VersionedFlowSnapshotMetadataSetEntity versions = flowClient.getVersions(registryId, bucketId, flowId);
    if (versions.getVersionedFlowSnapshotMetadataSet() == null || versions.getVersionedFlowSnapshotMetadataSet().isEmpty()) {
        throw new NiFiClientException("No versions available");
    }
    return new VersionedFlowSnapshotMetadataSetResult(getResultType(properties), versions);
}