Examples with ItemsClient org.apache.nifi.registry.client.ItemsClient used on opensource projects

Example 1 with ItemsClient

use of org.apache.nifi.registry.client.ItemsClient in project nifi-registry by apache.

the class UnsecuredNiFiRegistryClientIT method testNiFiRegistryClient.

@Test
public void testNiFiRegistryClient() throws IOException, NiFiRegistryException {
    // ---------------------- TEST BUCKETS --------------------------//
    final BucketClient bucketClient = client.getBucketClient();
    // create buckets
    final int numBuckets = 10;
    final List<Bucket> createdBuckets = new ArrayList<>();
    for (int i = 0; i < numBuckets; i++) {
        final Bucket createdBucket = createBucket(bucketClient, i);
        LOGGER.info("Created bucket # " + i + " with id " + createdBucket.getIdentifier());
        createdBuckets.add(createdBucket);
    }
    // get each bucket
    for (final Bucket bucket : createdBuckets) {
        final Bucket retrievedBucket = bucketClient.get(bucket.getIdentifier());
        Assert.assertNotNull(retrievedBucket);
        LOGGER.info("Retrieved bucket " + retrievedBucket.getIdentifier());
    }
    // final Bucket nonExistentBucket = bucketClient.get("does-not-exist");
    // Assert.assertNull(nonExistentBucket);
    // get bucket fields
    final Fields bucketFields = bucketClient.getFields();
    Assert.assertNotNull(bucketFields);
    LOGGER.info("Retrieved bucket fields, size = " + bucketFields.getFields().size());
    Assert.assertTrue(bucketFields.getFields().size() > 0);
    // get all buckets
    final List<Bucket> allBuckets = bucketClient.getAll();
    LOGGER.info("Retrieved buckets, size = " + allBuckets.size());
    Assert.assertEquals(numBuckets, allBuckets.size());
    allBuckets.stream().forEach(b -> System.out.println("Retrieve bucket " + b.getIdentifier()));
    // update each bucket
    for (final Bucket bucket : createdBuckets) {
        final Bucket bucketUpdate = new Bucket();
        bucketUpdate.setIdentifier(bucket.getIdentifier());
        bucketUpdate.setDescription(bucket.getDescription() + " UPDATE");
        final Bucket updatedBucket = bucketClient.update(bucketUpdate);
        Assert.assertNotNull(updatedBucket);
        LOGGER.info("Updated bucket " + updatedBucket.getIdentifier());
    }
    // ---------------------- TEST FLOWS --------------------------//
    final FlowClient flowClient = client.getFlowClient();
    // create flows
    final Bucket flowsBucket = createdBuckets.get(0);
    final VersionedFlow flow1 = createFlow(flowClient, flowsBucket, 1);
    LOGGER.info("Created flow # 1 with id " + flow1.getIdentifier());
    final VersionedFlow flow2 = createFlow(flowClient, flowsBucket, 2);
    LOGGER.info("Created flow # 2 with id " + flow2.getIdentifier());
    // get flow
    final VersionedFlow retrievedFlow1 = flowClient.get(flowsBucket.getIdentifier(), flow1.getIdentifier());
    Assert.assertNotNull(retrievedFlow1);
    LOGGER.info("Retrieved flow # 1 with id " + retrievedFlow1.getIdentifier());
    final VersionedFlow retrievedFlow2 = flowClient.get(flowsBucket.getIdentifier(), flow2.getIdentifier());
    Assert.assertNotNull(retrievedFlow2);
    LOGGER.info("Retrieved flow # 2 with id " + retrievedFlow2.getIdentifier());
    // update flows
    final VersionedFlow flow1Update = new VersionedFlow();
    flow1Update.setIdentifier(flow1.getIdentifier());
    flow1Update.setName(flow1.getName() + " UPDATED");
    final VersionedFlow updatedFlow1 = flowClient.update(flowsBucket.getIdentifier(), flow1Update);
    Assert.assertNotNull(updatedFlow1);
    LOGGER.info("Updated flow # 1 with id " + updatedFlow1.getIdentifier());
    // get flow fields
    final Fields flowFields = flowClient.getFields();
    Assert.assertNotNull(flowFields);
    LOGGER.info("Retrieved flow fields, size = " + flowFields.getFields().size());
    Assert.assertTrue(flowFields.getFields().size() > 0);
    // get flows in bucket
    final List<VersionedFlow> flowsInBucket = flowClient.getByBucket(flowsBucket.getIdentifier());
    Assert.assertNotNull(flowsInBucket);
    Assert.assertEquals(2, flowsInBucket.size());
    flowsInBucket.stream().forEach(f -> LOGGER.info("Flow in bucket, flow id " + f.getIdentifier()));
    // ---------------------- TEST SNAPSHOTS --------------------------//
    final FlowSnapshotClient snapshotClient = client.getFlowSnapshotClient();
    // create snapshots
    final VersionedFlow snapshotFlow = flow1;
    final VersionedFlowSnapshot snapshot1 = createSnapshot(snapshotClient, snapshotFlow, 1);
    LOGGER.info("Created snapshot # 1 with version " + snapshot1.getSnapshotMetadata().getVersion());
    final VersionedFlowSnapshot snapshot2 = createSnapshot(snapshotClient, snapshotFlow, 2);
    LOGGER.info("Created snapshot # 2 with version " + snapshot2.getSnapshotMetadata().getVersion());
    // get snapshot
    final VersionedFlowSnapshot retrievedSnapshot1 = snapshotClient.get(snapshotFlow.getBucketIdentifier(), snapshotFlow.getIdentifier(), 1);
    Assert.assertNotNull(retrievedSnapshot1);
    Assert.assertFalse(retrievedSnapshot1.isLatest());
    LOGGER.info("Retrieved snapshot # 1 with version " + retrievedSnapshot1.getSnapshotMetadata().getVersion());
    final VersionedFlowSnapshot retrievedSnapshot2 = snapshotClient.get(snapshotFlow.getBucketIdentifier(), snapshotFlow.getIdentifier(), 2);
    Assert.assertNotNull(retrievedSnapshot2);
    Assert.assertTrue(retrievedSnapshot2.isLatest());
    LOGGER.info("Retrieved snapshot # 2 with version " + retrievedSnapshot2.getSnapshotMetadata().getVersion());
    // get latest
    final VersionedFlowSnapshot retrievedSnapshotLatest = snapshotClient.getLatest(snapshotFlow.getBucketIdentifier(), snapshotFlow.getIdentifier());
    Assert.assertNotNull(retrievedSnapshotLatest);
    Assert.assertEquals(snapshot2.getSnapshotMetadata().getVersion(), retrievedSnapshotLatest.getSnapshotMetadata().getVersion());
    Assert.assertTrue(retrievedSnapshotLatest.isLatest());
    LOGGER.info("Retrieved latest snapshot with version " + retrievedSnapshotLatest.getSnapshotMetadata().getVersion());
    // get metadata
    final List<VersionedFlowSnapshotMetadata> retrievedMetadata = snapshotClient.getSnapshotMetadata(snapshotFlow.getBucketIdentifier(), snapshotFlow.getIdentifier());
    Assert.assertNotNull(retrievedMetadata);
    Assert.assertEquals(2, retrievedMetadata.size());
    Assert.assertEquals(2, retrievedMetadata.get(0).getVersion());
    Assert.assertEquals(1, retrievedMetadata.get(1).getVersion());
    retrievedMetadata.stream().forEach(s -> LOGGER.info("Retrieved snapshot metadata " + s.getVersion()));
    // get latest metadata
    final VersionedFlowSnapshotMetadata latestMetadata = snapshotClient.getLatestMetadata(snapshotFlow.getBucketIdentifier(), snapshotFlow.getIdentifier());
    Assert.assertNotNull(latestMetadata);
    Assert.assertEquals(2, latestMetadata.getVersion());
    // get latest metadata that doesn't exist
    try {
        snapshotClient.getLatestMetadata(snapshotFlow.getBucketIdentifier(), "DOES-NOT-EXIST");
        Assert.fail("Should have thrown exception");
    } catch (NiFiRegistryException nfe) {
        Assert.assertEquals("Error retrieving latest snapshot metadata: The specified flow ID does not exist in this bucket.", nfe.getMessage());
    }
    // ---------------------- TEST ITEMS --------------------------//
    final ItemsClient itemsClient = client.getItemsClient();
    // get fields
    final Fields itemFields = itemsClient.getFields();
    Assert.assertNotNull(itemFields.getFields());
    Assert.assertTrue(itemFields.getFields().size() > 0);
    // get all items
    final List<BucketItem> allItems = itemsClient.getAll();
    Assert.assertEquals(2, allItems.size());
    allItems.stream().forEach(i -> Assert.assertNotNull(i.getBucketName()));
    allItems.stream().forEach(i -> LOGGER.info("All items, item " + i.getIdentifier()));
    // get items for bucket
    final List<BucketItem> bucketItems = itemsClient.getByBucket(flowsBucket.getIdentifier());
    Assert.assertEquals(2, bucketItems.size());
    allItems.stream().forEach(i -> Assert.assertNotNull(i.getBucketName()));
    bucketItems.stream().forEach(i -> LOGGER.info("Items in bucket, item " + i.getIdentifier()));
    // ----------------------- TEST DIFF ---------------------------//
    final VersionedFlowSnapshot snapshot3 = buildSnapshot(snapshotFlow, 3);
    final VersionedProcessGroup newlyAddedPG = new VersionedProcessGroup();
    newlyAddedPG.setIdentifier("new-pg");
    newlyAddedPG.setName("NEW Process Group");
    snapshot3.getFlowContents().getProcessGroups().add(newlyAddedPG);
    snapshotClient.create(snapshot3);
    VersionedFlowDifference diff = flowClient.diff(snapshotFlow.getBucketIdentifier(), snapshotFlow.getIdentifier(), 3, 2);
    Assert.assertNotNull(diff);
    Assert.assertEquals(1, diff.getComponentDifferenceGroups().size());
    // ---------------------- DELETE DATA --------------------------//
    final VersionedFlow deletedFlow1 = flowClient.delete(flowsBucket.getIdentifier(), flow1.getIdentifier());
    Assert.assertNotNull(deletedFlow1);
    LOGGER.info("Deleted flow " + deletedFlow1.getIdentifier());
    final VersionedFlow deletedFlow2 = flowClient.delete(flowsBucket.getIdentifier(), flow2.getIdentifier());
    Assert.assertNotNull(deletedFlow2);
    LOGGER.info("Deleted flow " + deletedFlow2.getIdentifier());
    // delete each bucket
    for (final Bucket bucket : createdBuckets) {
        final Bucket deletedBucket = bucketClient.delete(bucket.getIdentifier());
        Assert.assertNotNull(deletedBucket);
        LOGGER.info("Deleted bucket " + deletedBucket.getIdentifier());
    }
    Assert.assertEquals(0, bucketClient.getAll().size());
    LOGGER.info("!!! SUCCESS !!!");
}