Examples with InMemoryClosableChannel org.neo4j.kernel.impl.transaction.log.InMemoryClosableChannel used on opensource projects

Example 56 with InMemoryClosableChannel

use of org.neo4j.kernel.impl.transaction.log.InMemoryClosableChannel in project neo4j by neo4j.

the class VersionAwareLogEntryReaderTest method shouldReturnNullWhenNotEnoughDataInTheChannel.

@Test
public void shouldReturnNullWhenNotEnoughDataInTheChannel() throws IOException {
    // given
    LogEntryVersion version = LogEntryVersion.CURRENT;
    final InMemoryClosableChannel channel = new InMemoryClosableChannel();
    // when
    final LogEntry logEntry = logEntryReader.readLogEntry(channel);
    // then
    assertNull(logEntry);
}

Example 57 with InMemoryClosableChannel

use of org.neo4j.kernel.impl.transaction.log.InMemoryClosableChannel in project neo4j by neo4j.

the class VersionAwareLogEntryReaderTest method shouldParseOldDoneSkipItAndReadTheOneAfter.

@Test
public void shouldParseOldDoneSkipItAndReadTheOneAfter() throws IOException {
    // given
    LogEntryVersion version = LogEntryVersion.V2_1;
    final InMemoryClosableChannel channel = new InMemoryClosableChannel();
    final OnePhaseCommit commit = new OnePhaseCommit(42, 456);
    // PREPARE
    channel.put(version.byteCode());
    channel.put(LogEntryByteCodes.DONE);
    // ignored data
    // identifier
    channel.putInt(123);
    // 2P COMMIT
    channel.put(version.byteCode());
    channel.put(LogEntryByteCodes.TX_2P_COMMIT);
    // ignored data
    // identifier
    channel.putInt(123);
    // actually used data
    channel.putLong(commit.getTxId());
    channel.putLong(commit.getTimeWritten());
    // when
    final LogEntry logEntry = logEntryReader.readLogEntry(channel);
    // then
    assertTrue(logEntry instanceof IdentifiableLogEntry);
    assertEquals(commit, ((IdentifiableLogEntry) logEntry).getEntry());
}

Example 58 with InMemoryClosableChannel

use of org.neo4j.kernel.impl.transaction.log.InMemoryClosableChannel in project neo4j by neo4j.

the class VersionAwareLogEntryReaderTest method shouldParseOldTwoPhaseCommit.

@Test
public void shouldParseOldTwoPhaseCommit() throws IOException {
    // given
    LogEntryVersion version = LogEntryVersion.V2_1;
    final InMemoryClosableChannel channel = new InMemoryClosableChannel();
    final OnePhaseCommit commit = new OnePhaseCommit(42, 456);
    channel.put(version.byteCode());
    channel.put(LogEntryByteCodes.TX_2P_COMMIT);
    // ignored data
    // identifier
    channel.putInt(123);
    // actually used data
    channel.putLong(commit.getTxId());
    channel.putLong(commit.getTimeWritten());
    // when
    final LogEntry logEntry = logEntryReader.readLogEntry(channel);
    // then
    assertTrue(logEntry instanceof IdentifiableLogEntry);
    assertEquals(commit, ((IdentifiableLogEntry) logEntry).getEntry());
}

Example 59 with InMemoryClosableChannel

use of org.neo4j.kernel.impl.transaction.log.InMemoryClosableChannel in project neo4j by neo4j.

the class RelationshipGroupCommandV2_2Test method assertSerializationWorksFor.

private void assertSerializationWorksFor(Command.RelationshipGroupCommand cmd) throws IOException {
    InMemoryClosableChannel channel = new InMemoryClosableChannel();
    cmd.serialize(channel);
    CommandReader commandReader = new PhysicalLogCommandReaderV2_2();
    Command.RelationshipGroupCommand result = (Command.RelationshipGroupCommand) commandReader.read(channel);
    RelationshipGroupRecord recordBefore = cmd.getBefore();
    RelationshipGroupRecord recordAfter = result.getAfter();
    // Then
    assertThat(recordBefore.getFirstIn(), equalTo(recordAfter.getFirstIn()));
    assertThat(recordBefore.getFirstOut(), equalTo(recordAfter.getFirstOut()));
    assertThat(recordBefore.getFirstLoop(), equalTo(recordAfter.getFirstLoop()));
    assertThat(recordBefore.getNext(), equalTo(recordAfter.getNext()));
    assertThat(recordBefore.getOwningNode(), equalTo(recordAfter.getOwningNode()));
    assertThat(recordBefore.getPrev(), equalTo(recordAfter.getPrev()));
    assertThat(recordBefore.getType(), equalTo(recordAfter.getType()));
}

Example 60 with InMemoryClosableChannel

use of org.neo4j.kernel.impl.transaction.log.InMemoryClosableChannel in project neo4j by neo4j.

the class SchemaRuleCommandTest method shouldWriteSchemaRuleToLog.

@Test
public void shouldWriteSchemaRuleToLog() throws Exception {
    // GIVEN
    SchemaRecord beforeRecords = serialize(rule, id, false, false);
    SchemaRecord afterRecords = serialize(rule, id, true, true);
    SchemaRuleCommand command = new SchemaRuleCommand(beforeRecords, afterRecords, rule);
    InMemoryClosableChannel buffer = new InMemoryClosableChannel();
    when(neoStores.getSchemaStore()).thenReturn(schemaStore);
    // WHEN
    command.serialize(buffer);
    Command readCommand = reader.read(buffer);
    // THEN
    assertThat(readCommand, instanceOf(SchemaRuleCommand.class));
    assertSchemaRule((SchemaRuleCommand) readCommand);
}