Examples with DynamicRecord org.neo4j.kernel.impl.store.record.DynamicRecord used on opensource projects

Example 81 with DynamicRecord

use of org.neo4j.kernel.impl.store.record.DynamicRecord in project neo4j by neo4j.

the class BatchInsertTest method shouldCreateConsistentUniquenessConstraint.

@Test
public void shouldCreateConsistentUniquenessConstraint() throws Exception {
    // given
    BatchInserter inserter = newBatchInserter();
    // when
    inserter.createDeferredConstraint(label("Hacker")).assertPropertyIsUnique("handle").create();
    // then
    GraphDatabaseAPI graphdb = (GraphDatabaseAPI) switchToEmbeddedGraphDatabaseService(inserter);
    try {
        NeoStores neoStores = graphdb.getDependencyResolver().resolveDependency(RecordStorageEngine.class).testAccessNeoStores();
        SchemaStore store = neoStores.getSchemaStore();
        SchemaStorage storage = new SchemaStorage(store);
        List<Long> inUse = new ArrayList<>();
        DynamicRecord record = store.nextRecord();
        for (long i = 1, high = store.getHighestPossibleIdInUse(); i <= high; i++) {
            store.getRecord(i, record, RecordLoad.FORCE);
            if (record.inUse() && record.isStartRecord()) {
                inUse.add(i);
            }
        }
        assertEquals("records in use", 2, inUse.size());
        SchemaRule rule0 = storage.loadSingleSchemaRule(inUse.get(0));
        SchemaRule rule1 = storage.loadSingleSchemaRule(inUse.get(1));
        IndexRule indexRule;
        ConstraintRule constraintRule;
        if (rule0 instanceof IndexRule) {
            indexRule = (IndexRule) rule0;
            constraintRule = (ConstraintRule) rule1;
        } else {
            constraintRule = (ConstraintRule) rule0;
            indexRule = (IndexRule) rule1;
        }
        assertEquals("index should reference constraint", constraintRule.getId(), indexRule.getOwningConstraint().longValue());
        assertEquals("constraint should reference index", indexRule.getId(), constraintRule.getOwnedIndex());
    } finally {
        graphdb.shutdown();
    }
}

Example 82 with DynamicRecord

use of org.neo4j.kernel.impl.store.record.DynamicRecord in project neo4j by neo4j.

the class SchemaStorage method loadAllSchemaRules.

<ReturnType extends SchemaRule> Iterator<ReturnType> loadAllSchemaRules(final Predicate<ReturnType> predicate, final Class<ReturnType> returnType, final boolean ignoreMalformed) {
    return new PrefetchingIterator<ReturnType>() {

        private final long highestId = schemaStore.getHighestPossibleIdInUse();

        private long currentId = 1;

        /*record 0 contains the block size*/
        private final byte[] scratchData = newRecordBuffer();

        private final DynamicRecord record = schemaStore.newRecord();

        @Override
        protected ReturnType fetchNextOrNull() {
            while (currentId <= highestId) {
                long id = currentId++;
                schemaStore.getRecord(id, record, RecordLoad.FORCE);
                if (record.inUse() && record.isStartRecord()) {
                    try {
                        SchemaRule schemaRule = loadSingleSchemaRuleViaBuffer(id, scratchData);
                        if (returnType.isInstance(schemaRule)) {
                            ReturnType returnRule = returnType.cast(schemaRule);
                            if (predicate.test(returnRule)) {
                                return returnRule;
                            }
                        }
                    } catch (MalformedSchemaRuleException e) {
                        if (!ignoreMalformed) {
                            throw new RuntimeException(e);
                        }
                    }
                }
            }
            return null;
        }
    };
}

Example 83 with DynamicRecord

use of org.neo4j.kernel.impl.store.record.DynamicRecord in project neo4j by neo4j.

the class TokenStore method getStringFor.

public String getStringFor(RECORD nameRecord) {
    ensureHeavy(nameRecord);
    int recordToFind = nameRecord.getNameId();
    Iterator<DynamicRecord> records = nameRecord.getNameRecords().iterator();
    Collection<DynamicRecord> relevantRecords = new ArrayList<>();
    while (recordToFind != Record.NO_NEXT_BLOCK.intValue() && records.hasNext()) {
        DynamicRecord record = records.next();
        if (record.inUse() && record.getId() == recordToFind) {
            recordToFind = (int) record.getNextBlock();
            // TODO: optimize here, high chance next is right one
            relevantRecords.add(record);
            records = nameRecord.getNameRecords().iterator();
        }
    }
    return decodeString(nameStore.readFullByteArray(relevantRecords, PropertyType.STRING).other());
}

Example 84 with DynamicRecord

use of org.neo4j.kernel.impl.store.record.DynamicRecord in project neo4j by neo4j.

the class PhysicalLogCommandReaderV2_1 method visitLabelTokenCommand.

private Command visitLabelTokenCommand(ReadableChannel channel) throws IOException {
    // id+in_use(byte)+type_blockId(int)+nr_type_records(int)
    int id = channel.getInt();
    byte inUseFlag = channel.get();
    boolean inUse = false;
    if ((inUseFlag & Record.IN_USE.byteValue()) == Record.IN_USE.byteValue()) {
        inUse = true;
    } else if (inUseFlag != Record.NOT_IN_USE.byteValue()) {
        throw new IOException("Illegal in use flag: " + inUseFlag);
    }
    LabelTokenRecord record = new LabelTokenRecord(id);
    record.setInUse(inUse);
    record.setNameId(channel.getInt());
    int nrTypeRecords = channel.getInt();
    for (int i = 0; i < nrTypeRecords; i++) {
        DynamicRecord dr = readDynamicRecord(channel);
        if (dr == null) {
            return null;
        }
        record.addNameRecord(dr);
    }
    return new Command.LabelTokenCommand(null, record);
}

Example 85 with DynamicRecord

use of org.neo4j.kernel.impl.store.record.DynamicRecord in project neo4j by neo4j.

the class PhysicalLogCommandReaderV2_0 method visitLabelTokenCommand.

private Command visitLabelTokenCommand(ReadableChannel channel) throws IOException {
    // id+in_use(byte)+type_blockId(int)+nr_type_records(int)
    int id = channel.getInt();
    byte inUseFlag = channel.get();
    boolean inUse = false;
    if ((inUseFlag & Record.IN_USE.byteValue()) == Record.IN_USE.byteValue()) {
        inUse = true;
    } else if (inUseFlag != Record.NOT_IN_USE.byteValue()) {
        throw new IOException("Illegal in use flag: " + inUseFlag);
    }
    LabelTokenRecord record = new LabelTokenRecord(id);
    record.setInUse(inUse);
    record.setNameId(channel.getInt());
    int nrTypeRecords = channel.getInt();
    for (int i = 0; i < nrTypeRecords; i++) {
        DynamicRecord dr = readDynamicRecord(channel);
        if (dr == null) {
            return null;
        }
        record.addNameRecord(dr);
    }
    return new Command.LabelTokenCommand(null, record);
}