Examples of org.lilyproject.repository.api.filter.RecordIdPrefixFilter

Package org.lilyproject.repository.api.filter

Examples of org.lilyproject.repository.api.filter.RecordIdPrefixFilter

org.lilyproject.repository.api.filter.RecordIdPrefixFilter
A filter which lets through records whose ID starts with the given RecordId.
It does not make sense to use this with UUID-based record IDs.

When using this filter, you should set {@link org.lilyproject.repository.api.RecordScan#setStartRecordId(org.lilyproject.repository.api.RecordId)}to the same RecordId as set here, since any earlier records will be dropped anyway by this filter.

The scan will stop as soon as a record ID is encountered which is larger than what can be matched by the prefix. So the scan will not needlessly run to the end of the table.

    @Override
    public RecordIdPrefixFilter fromJson(JsonNode node, Namespaces namespaces, LRepository repository,
            RecordFilterJsonConverter<RecordFilter> converter)
            throws JsonFormatException, RepositoryException, InterruptedException {


        RecordIdPrefixFilter filter = new RecordIdPrefixFilter();


        String recordId = JsonUtil.getString(node, "recordId", null);
        if (recordId != null) {
            filter.setRecordId(repository.getIdGenerator().fromString(recordId));
        }


        return filter;
    }

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        if (!(uncastFilter instanceof RecordIdPrefixFilter)) {
            return null;
        }


        RecordIdPrefixFilter filter = (RecordIdPrefixFilter) uncastFilter;


        if (filter.getRecordId() == null) {
            throw new IllegalArgumentException("Record ID should be specified in RecordIdPrefixFilter");
        }


        RecordId recordId = filter.getRecordId();
        byte[] rowKeyPrefix = recordId.toBytes();


        return new PrefixFilter(rowKeyPrefix);
    }

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        assertEquals(idGenerator.newRecordId("PrefixScanTest-suffix2"), scanner.next().getId());
        // the scanner would run till the end of the table
        assertNotNull(scanner.next());
        scanner.close();


        scan.setRecordFilter(new RecordIdPrefixFilter(idGenerator.newRecordId("PrefixScanTest")));
        scanner = repository.getScanner(scan);
        assertEquals(idGenerator.newRecordId("PrefixScanTest"), scanner.next().getId());
        assertEquals(idGenerator.newRecordId("PrefixScanTest-suffix1"), scanner.next().getId());
        assertEquals(idGenerator.newRecordId("PrefixScanTest-suffix2"), scanner.next().getId());
        // due to the prefix filter, the scanner stops once there are no records left with the same prefix
        assertNull(scanner.next());
        scanner.close();


        //
        // When using UUID record ID's, prefix scans make less sense, except for retrieving
        // variants
        //
        RecordId uuid = idGenerator.newRecordId();
        RecordId varid1 = idGenerator.newRecordId(uuid, ImmutableMap.of("lang", "en", "year", "1999"));
        RecordId varid2 = idGenerator.newRecordId(uuid, ImmutableMap.of("lang", "fr"));


        repository.recordBuilder()
                .id(uuid)
                .recordType(recordType1.getName())
                .field(fieldType1.getName(), "foo")
                .create();


        repository.recordBuilder()
                .id(varid1)
                .recordType(recordType1.getName())
                .field(fieldType1.getName(), "foo")
                .create();


        repository.recordBuilder()
                .id(varid2)
                .recordType(recordType1.getName())
                .field(fieldType1.getName(), "foo")
                .create();


        scan = new RecordScan();
        scan.setStartRecordId(uuid);
        scan.setRecordFilter(new RecordIdPrefixFilter(uuid));
        scanner = repository.getScanner(scan);
        assertEquals(uuid, scanner.next().getId());
        assertEquals(varid1, scanner.next().getId());
        assertEquals(varid2, scanner.next().getId());
        assertNull(scanner.next());

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            repository.create(record);
        }


        RecordScan scan = new RecordScan();
        scan.setStartRecordId(idGenerator.newRecordId("ScanDeleteTest-"));
        scan.setRecordFilter(new RecordIdPrefixFilter(idGenerator.newRecordId("ScanDeleteTest-")));


        RecordScanner scanner = repository.getScanner(scan);
        assertEquals(5, countResults(scanner));
        scanner.close();

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        IdGenerator idGenerator = new IdGeneratorImpl();


        RecordId recordId = idGenerator.newRecordId("foo");


        RecordScan scan = new RecordScan();
        scan.setRecordFilter(new RecordIdPrefixFilter(recordId));


        byte[] data = scanToBytes(scan);
        RecordScan parsedScan = scanFromBytes(data);


        assertNotNull(parsedScan.getRecordFilter());

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        RecordId recordId = idGenerator.newRecordId("foo");


        RecordScan scan = new RecordScan();
        RecordFilterList filterList = new RecordFilterList(RecordFilterList.Operator.MUST_PASS_ONE);
        filterList.addFilter(new RecordIdPrefixFilter(recordId));
        filterList.addFilter(new RecordTypeFilter(new QName("ns", "stringField")));
        scan.setRecordFilter(filterList);


        byte[] data = scanToBytes(scan);
        RecordScan parsedScan = scanFromBytes(data);

View Full Code Here

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Related Classes of org.lilyproject.repository.api.filter.RecordIdPrefixFilter

org.lilyproject.repository.impl.filter.HBaseRecordIdPrefixFilter

org.lilyproject.repository.impl.test.AbstractRepositoryTest

org.lilyproject.tools.import_.json.filters.RecordIdPrefixFilterJson

org.lilyproject.tools.import_.json.test.JsonConversionTest

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