Examples with MetadataRecord io.cdap.cdap.spi.metadata.MetadataRecord used on opensource projects

Example 1 with MetadataRecord

use of io.cdap.cdap.spi.metadata.MetadataRecord in project cdap by caskdata.

the class DatasetMetadataStorage method search.

@Override
public SearchResponse search(SearchRequest request) {
    Cursor cursor = request.getCursor() != null && !request.getCursor().isEmpty() ? Cursor.fromString(request.getCursor()) : null;
    Set<String> namespaces = cursor == null ? request.getNamespaces() : cursor.getNamespaces();
    ImmutablePair<NamespaceId, Set<EntityScope>> namespaceAndScopes = determineNamespaceAndScopes(namespaces);
    CursorAndOffsetInfo cursorOffsetAndLimits = determineCursorOffsetAndLimits(request, cursor);
    String query = cursor != null ? cursor.getQuery() : request.getQuery() == null || request.getQuery().isEmpty() ? "*" : request.getQuery();
    Set<String> types = cursor != null ? cursor.getTypes() : request.getTypes();
    types = types == null ? Collections.emptySet() : types;
    Sorting sorting = cursor == null ? request.getSorting() : cursor.getSorting() == null ? null : Sorting.of(cursor.getSorting());
    SortInfo sortInfo = sorting == null ? SortInfo.DEFAULT : new SortInfo(sorting.getKey(), SortInfo.SortOrder.valueOf(sorting.getOrder().name()));
    boolean showHidden = cursor != null ? cursor.isShowHidden() : request.isShowHidden();
    MetadataScope scope = cursor != null ? cursor.getScope() : request.getScope();
    MetadataSearchResponse response = search(new io.cdap.cdap.data2.metadata.dataset.SearchRequest(namespaceAndScopes.getFirst(), query, types, sortInfo, cursorOffsetAndLimits.getOffsetToRequest(), cursorOffsetAndLimits.getLimitToRequest(), request.isCursorRequested() ? 1 : 0, cursorOffsetAndLimits.getCursor(), showHidden, namespaceAndScopes.getSecond()), scope);
    // translate results back and limit them to at most what was requested (see above where we add 1)
    int limitToRespond = cursorOffsetAndLimits.getLimitToRespond();
    int offsetToRespond = cursorOffsetAndLimits.getOffsetToRespond();
    List<MetadataRecord> results = response.getResults().stream().limit(limitToRespond).map(record -> {
        Metadata metadata = Metadata.EMPTY;
        for (Map.Entry<MetadataScope, io.cdap.cdap.api.metadata.Metadata> entry : record.getMetadata().entrySet()) {
            Metadata toAdd = new Metadata(entry.getKey(), entry.getValue().getTags(), entry.getValue().getProperties());
            metadata = mergeDisjointMetadata(metadata, toAdd);
        }
        return new MetadataRecord(record.getMetadataEntity(), metadata);
    }).collect(Collectors.toList());
    Cursor newCursor = null;
    if (response.getCursors() != null && !response.getCursors().isEmpty()) {
        String actualCursor = response.getCursors().get(0);
        if (cursor != null) {
            // the new cursor's offset is the previous cursor's offset plus the number of results
            newCursor = new Cursor(cursor, cursor.getOffset() + results.size(), actualCursor);
        } else {
            newCursor = new Cursor(offsetToRespond + results.size(), limitToRespond, showHidden, scope, namespaces, types, sorting == null ? null : sorting.toString(), actualCursor, query);
        }
    }
    // adjust the total results by the difference of requested offset and the true offset that we respond back
    int totalResults = offsetToRespond - cursorOffsetAndLimits.getOffsetToRequest() + response.getTotal();
    return new SearchResponse(request, newCursor == null ? null : newCursor.toString(), offsetToRespond, limitToRespond, totalResults, results);
}

Example 2 with MetadataRecord

use of io.cdap.cdap.spi.metadata.MetadataRecord in project cdap by caskdata.

the class MetadataCompatibility method toV5Results.

/**
 * Convert a list of {@link MetadataRecord}s to an ordered set of 5.x {@link MetadataSearchResultRecord}s.
 *
 * The 5.x convention was that the results only contain non-empty records.
 */
private static Set<MetadataSearchResultRecord> toV5Results(List<MetadataRecord> results) {
    Set<MetadataSearchResultRecord> records = new LinkedHashSet<>();
    for (MetadataRecord record : results) {
        Map<MetadataScope, io.cdap.cdap.api.metadata.Metadata> map = toV5Metadata(record.getMetadata());
        records.add(new MetadataSearchResultRecord(record.getEntity(), Maps.filterValues(map, meta -> meta != null && !(meta.getProperties().isEmpty() && meta.getTags().isEmpty()))));
    }
    return records;
}

Example 3 with MetadataRecord

use of io.cdap.cdap.spi.metadata.MetadataRecord in project cdap by caskdata.

the class ElasticsearchMetadataStorageTest method testScrollTimeout.

@Test
public void testScrollTimeout() throws IOException, InterruptedException {
    MetadataStorage mds = getMetadataStorage();
    MutationOptions options = MutationOptions.builder().setAsynchronous(false).build();
    List<MetadataRecord> records = IntStream.range(0, 20).boxed().map(i -> new MetadataRecord(MetadataEntity.ofDataset("ns" + i, "ds" + i), new Metadata(MetadataScope.USER, tags("tag", "t" + i), props("p", "v" + i)))).collect(Collectors.toList());
    mds.batch(records.stream().map(r -> new Update(r.getEntity(), r.getMetadata())).collect(Collectors.toList()), options);
    SearchRequest request = SearchRequest.of("t*").setCursorRequested(true).setLimit(5).build();
    SearchResponse response = mds.search(request);
    Assert.assertEquals(5, response.getResults().size());
    Assert.assertNotNull(response.getCursor());
    SearchRequest request2 = SearchRequest.of("t*").setCursor(response.getCursor()).build();
    SearchResponse response2 = mds.search(request2);
    Assert.assertEquals(5, response2.getResults().size());
    // it works despite a cursor and an offset (which is equal to the cursor's)
    SearchRequest request2a = SearchRequest.of("t*").setCursor(response.getCursor()).setOffset(5).build();
    SearchResponse response2a = mds.search(request2a);
    Assert.assertEquals(5, response2a.getOffset());
    Assert.assertEquals(5, response2a.getLimit());
    Assert.assertEquals(response2.getResults(), response2a.getResults());
    // it works despite a cursor and an offset (which is different from the cursor's)
    SearchRequest request2b = SearchRequest.of("t*").setCursor(response.getCursor()).setOffset(8).build();
    SearchResponse response2b = mds.search(request2b);
    Assert.assertEquals(5, response2b.getOffset());
    Assert.assertEquals(5, response2b.getLimit());
    Assert.assertEquals(response2.getResults(), response2b.getResults());
    // sleep 1 sec longer than the configured scroll timeout to invalidate cursor
    TimeUnit.SECONDS.sleep(3);
    SearchResponse response3 = mds.search(request2);
    Assert.assertEquals(response2.getResults(), response3.getResults());
    Assert.assertEquals(response2.getCursor(), response3.getCursor());
    // it works despite an expired cursor and an offset (which is different from the cursor's)
    SearchRequest request3a = SearchRequest.of("t*").setCursor(response.getCursor()).setOffset(8).build();
    SearchResponse response3a = mds.search(request3a);
    Assert.assertEquals(5, response3a.getOffset());
    Assert.assertEquals(5, response3a.getLimit());
    Assert.assertEquals(response2.getResults(), response3a.getResults());
    // create a nonsense cursor and search with that
    Cursor cursor = Cursor.fromString(response.getCursor());
    cursor = new Cursor(cursor, cursor.getOffset(), "nosuchcursor");
    SearchRequest request4 = SearchRequest.of("t*").setCursor(cursor.toString()).build();
    SearchResponse response4 = mds.search(request4);
    // compare only the results, not the entire response (the cursor is different)
    Assert.assertEquals(response2.getResults(), response4.getResults());
    // clean up
    mds.batch(records.stream().map(MetadataRecord::getEntity).map(Drop::new).collect(Collectors.toList()), options);
}

Example 4 with MetadataRecord

use of io.cdap.cdap.spi.metadata.MetadataRecord in project cdap by caskdata.

the class ElasticsearchMetadataStorage method createSearchResponse.

private io.cdap.cdap.spi.metadata.SearchResponse createSearchResponse(SearchRequest request, SearchResponse response, String cursor, int offset, int limit) {
    SearchHits hits = response.getHits();
    List<MetadataRecord> results = fromHits(hits);
    return new io.cdap.cdap.spi.metadata.SearchResponse(request, cursor, offset, limit, (int) hits.getTotalHits(), results);
}

Example 5 with MetadataRecord

use of io.cdap.cdap.spi.metadata.MetadataRecord in project cdap by caskdata.

the class DatasetMetadataStorageTest method testCrossNamespacePagination.

// this test is specific to teh DatasetMetadataStorage, because of the specific way it tests pagination:
// it requests offsets that are not a multiple of the page size, which is not supported in all implementations.
@Test
public void testCrossNamespacePagination() throws IOException {
    MetadataStorage mds = getMetadataStorage();
    NamespaceId ns1Id = new NamespaceId("ns1");
    NamespaceId ns2Id = new NamespaceId("ns2");
    MetadataEntity ns1app1 = ns1Id.app("a1").toMetadataEntity();
    MetadataEntity ns1app2 = ns1Id.app("a2").toMetadataEntity();
    MetadataEntity ns1app3 = ns1Id.app("a3").toMetadataEntity();
    MetadataEntity ns2app1 = ns2Id.app("a1").toMetadataEntity();
    MetadataEntity ns2app2 = ns2Id.app("a2").toMetadataEntity();
    mds.batch(ImmutableList.of(new Update(ns1app1, new Metadata(USER, tags("v1"))), new Update(ns1app2, new Metadata(USER, tags("v1"))), new Update(ns1app3, new Metadata(USER, tags("v1"))), new Update(ns2app1, new Metadata(USER, tags("v1"))), new Update(ns2app2, new Metadata(USER, tags("v1")))), MutationOptions.DEFAULT);
    MetadataRecord record11 = new MetadataRecord(ns1app1, new Metadata(USER, tags("v1")));
    MetadataRecord record12 = new MetadataRecord(ns1app2, new Metadata(USER, tags("v1")));
    MetadataRecord record13 = new MetadataRecord(ns1app3, new Metadata(USER, tags("v1")));
    MetadataRecord record21 = new MetadataRecord(ns2app1, new Metadata(USER, tags("v1")));
    MetadataRecord record22 = new MetadataRecord(ns2app2, new Metadata(USER, tags("v1")));
    SearchResponse response = assertResults(mds, SearchRequest.of("*").setLimit(Integer.MAX_VALUE).setCursorRequested(true).build(), record11, record12, record13, record21, record22);
    // iterate over results to find the order in which they are returned
    Iterator<MetadataRecord> resultIter = response.getResults().iterator();
    MetadataRecord[] results = { resultIter.next(), resultIter.next(), resultIter.next(), resultIter.next(), resultIter.next() };
    // get 4 results (guaranteed to have at least one from each namespace), offset 1
    assertResults(mds, SearchRequest.of("*").setCursorRequested(true).setOffset(1).setLimit(4).build(), results[1], results[2], results[3], results[4]);
    // get the first four
    assertResults(mds, SearchRequest.of("*").setCursorRequested(true).setOffset(0).setLimit(4).build(), results[0], results[1], results[2], results[3]);
    // get middle 3
    assertResults(mds, SearchRequest.of("*").setCursorRequested(true).setOffset(1).setLimit(3).build(), results[1], results[2], results[3], results[3]);
    // clean up
    mds.batch(ImmutableList.of(new Drop(ns1app1), new Drop(ns1app2), new Drop(ns1app3), new Drop(ns2app1), new Drop(ns2app2)), MutationOptions.DEFAULT);
}