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

Example 16 with LabelTokenRecord

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

the class TransactionRecordState method extractCommands.

@Override
public void extractCommands(Collection<StorageCommand> commands) throws TransactionFailureException {
    assert !prepared : "Transaction has already been prepared";
    integrityValidator.validateTransactionStartKnowledge(lastCommittedTxWhenTransactionStarted);
    int noOfCommands = recordChangeSet.changeSize() + (neoStoreRecord != null ? neoStoreRecord.changeSize() : 0);
    for (RecordProxy<Integer, LabelTokenRecord, Void> record : recordChangeSet.getLabelTokenChanges().changes()) {
        commands.add(new Command.LabelTokenCommand(record.getBefore(), record.forReadingLinkage()));
    }
    for (RecordProxy<Integer, RelationshipTypeTokenRecord, Void> record : recordChangeSet.getRelationshipTypeTokenChanges().changes()) {
        commands.add(new Command.RelationshipTypeTokenCommand(record.getBefore(), record.forReadingLinkage()));
    }
    for (RecordProxy<Integer, PropertyKeyTokenRecord, Void> record : recordChangeSet.getPropertyKeyTokenChanges().changes()) {
        commands.add(new Command.PropertyKeyTokenCommand(record.getBefore(), record.forReadingLinkage()));
    }
    // Collect nodes, relationships, properties
    Command[] nodeCommands = EMPTY_COMMANDS;
    int skippedCommands = 0;
    if (recordChangeSet.getNodeRecords().changeSize() > 0) {
        nodeCommands = new Command[recordChangeSet.getNodeRecords().changeSize()];
        int i = 0;
        for (RecordProxy<Long, NodeRecord, Void> change : recordChangeSet.getNodeRecords().changes()) {
            NodeRecord record = prepared(change, nodeStore);
            integrityValidator.validateNodeRecord(record);
            nodeCommands[i++] = new Command.NodeCommand(change.getBefore(), record);
        }
        Arrays.sort(nodeCommands, COMMAND_SORTER);
    }
    Command[] relCommands = EMPTY_COMMANDS;
    if (recordChangeSet.getRelRecords().changeSize() > 0) {
        relCommands = new Command[recordChangeSet.getRelRecords().changeSize()];
        int i = 0;
        for (RecordProxy<Long, RelationshipRecord, Void> change : recordChangeSet.getRelRecords().changes()) {
            relCommands[i++] = new Command.RelationshipCommand(change.getBefore(), prepared(change, relationshipStore));
        }
        Arrays.sort(relCommands, COMMAND_SORTER);
    }
    Command[] propCommands = EMPTY_COMMANDS;
    if (recordChangeSet.getPropertyRecords().changeSize() > 0) {
        propCommands = new Command[recordChangeSet.getPropertyRecords().changeSize()];
        int i = 0;
        for (RecordProxy<Long, PropertyRecord, PrimitiveRecord> change : recordChangeSet.getPropertyRecords().changes()) {
            propCommands[i++] = new Command.PropertyCommand(change.getBefore(), prepared(change, propertyStore));
        }
        Arrays.sort(propCommands, COMMAND_SORTER);
    }
    Command[] relGroupCommands = EMPTY_COMMANDS;
    if (recordChangeSet.getRelGroupRecords().changeSize() > 0) {
        relGroupCommands = new Command[recordChangeSet.getRelGroupRecords().changeSize()];
        int i = 0;
        for (RecordProxy<Long, RelationshipGroupRecord, Integer> change : recordChangeSet.getRelGroupRecords().changes()) {
            if (change.isCreated() && !change.forReadingLinkage().inUse()) {
                /*
                     * This is an edge case that may come up and which we must handle properly. Relationship groups are
                     * not managed by the tx state, since they are created as side effects rather than through
                     * direct calls. However, they differ from say, dynamic records, in that their management can happen
                     * through separate code paths. What we are interested in here is the following scenario.
                     * 0. A node has one less relationship that is required to transition to dense node. The relationships
                     *    it has belong to at least two different types
                     * 1. In the same tx, a relationship is added making the node dense and all the relationships of a type
                     *    are removed from that node. Regardless of the order these operations happen, the creation of the
                     *    relationship (and the transition of the node to dense) will happen first.
                     * 2. A relationship group will be created because of the transition to dense and then deleted because
                     *    all the relationships it would hold are no longer there. This results in a relationship group
                     *    command that appears in the tx as not in use. Depending on the final order of operations, this
                     *    can end up using an id that is higher than the highest id seen so far. This may not be a problem
                     *    for a single instance, but it can result in errors in cases where transactions are applied
                     *    externally, such as backup or HA.
                     *
                     * The way we deal with this issue here is by not issuing a command for that offending record. This is
                     * safe, since the record is not in use and never was, so the high id is not necessary to change and
                     * the store remains consistent.
                     */
                skippedCommands++;
                continue;
            }
            relGroupCommands[i++] = new Command.RelationshipGroupCommand(change.getBefore(), prepared(change, relationshipGroupStore));
        }
        relGroupCommands = i < relGroupCommands.length ? Arrays.copyOf(relGroupCommands, i) : relGroupCommands;
        Arrays.sort(relGroupCommands, COMMAND_SORTER);
    }
    addFiltered(commands, Mode.CREATE, propCommands, relCommands, relGroupCommands, nodeCommands);
    addFiltered(commands, Mode.UPDATE, propCommands, relCommands, relGroupCommands, nodeCommands);
    addFiltered(commands, Mode.DELETE, propCommands, relCommands, relGroupCommands, nodeCommands);
    if (neoStoreRecord != null) {
        for (RecordProxy<Long, NeoStoreRecord, Void> change : neoStoreRecord.changes()) {
            commands.add(new Command.NeoStoreCommand(change.getBefore(), change.forReadingData()));
        }
    }
    for (RecordProxy<Long, SchemaRecord, SchemaRule> change : recordChangeSet.getSchemaRuleChanges().changes()) {
        integrityValidator.validateSchemaRule(change.getAdditionalData());
        commands.add(new Command.SchemaRuleCommand(change.getBefore(), change.forChangingData(), change.getAdditionalData()));
    }
    assert commands.size() == noOfCommands - skippedCommands : format("Expected %d final commands, got %d " + "instead, with %d skipped", noOfCommands, commands.size(), skippedCommands);
    prepared = true;
}

Example 17 with LabelTokenRecord

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

the class PhysicalLogCommandReaderV3_0_2 method readLabelTokenRecord.

private LabelTokenRecord readLabelTokenRecord(int id, ReadableChannel channel) throws IOException {
    // in_use(byte)+type_blockId(int)+nr_type_records(int)
    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 record;
}

Example 18 with LabelTokenRecord

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

the class PhysicalLogCommandReaderV2_2_10 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 19 with LabelTokenRecord

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

the class PhysicalLogCommandReaderV2_2_4 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 20 with LabelTokenRecord

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

the class LabelTokenStoreTest method forceGetRecordSkipInUsecheck.

@Test
public void forceGetRecordSkipInUsecheck() throws IOException {
    LabelTokenStore store = new UnusedLabelTokenStore();
    LabelTokenRecord record = store.getRecord(7, store.newRecord(), FORCE);
    assertFalse("Record should not be in use", record.inUse());
}