@Test
public void should_get_the_data_that_has_been_set_when_no_log_entries() throws Exception {
// given
final int term = 10;
final int leaderId = 2;
final long leaderCommit = 34564;
final int prevLogEntryTerm = 8;
final long prevLogEntryIndex = 34765;
// when
directAppendRequest
.term(term)
.leaderId(leaderId)
.leaderCommit(leaderCommit)
.prevLogKey()
.term(prevLogEntryTerm)
.index(prevLogEntryIndex);
final Sequence.SequenceIterator<LogEntry> logEntryIterator =
directAppendRequest.logEntries().iterator();
assertThat(logEntryIterator.hasNext()).isEqualTo(false);
// then
assertThat(directAppendRequest.type()).isEqualTo(MessageType.APPEND_REQUEST);
assertThat(directAppendRequest.term()).isEqualTo(term);
assertThat(directAppendRequest.leaderId()).isEqualTo(leaderId);
assertThat(directAppendRequest.leaderCommit()).isEqualTo(leaderCommit);
final int retrievedPrevLogEntryTerm = directAppendRequest.prevLogKey().term();
final long retrievedPrevLogEntryIndex = directAppendRequest.prevLogKey().index();
assertThat(retrievedPrevLogEntryTerm).isEqualTo(prevLogEntryTerm);
assertThat(retrievedPrevLogEntryIndex).isEqualTo(prevLogEntryIndex);
final int extectedAppendRequestBytes = DirectAppendRequest.EMPTY_LOG_BYTE_LENGTH;
assertThat(directAppendRequest.byteLength()).isEqualTo(extectedAppendRequestBytes);
}
@Test
public void should_get_the_data_that_has_been_set() throws Exception {
// given
final int term = 10;
final int leaderId = 2;
final long leaderCommit = 34564;
final int prevLogEntryTerm = 8;
final long prevLogEntryIndex = 34765;
final int newEntryTerm1 = 9;
final long newEntryIndex1 = 34766;
final long newEntryCommandIndex1 = 45674;
final int newEntryCommandSourceId1 = 34;
final String myCommand1 = "Command: XXXXXX";
final byte[] commandBytes1 = myCommand1.getBytes();
final int newEntryTerm2 = 10;
final long newEntryIndex2 = 34767;
final long newEntryCommandIndex2 = 45675;
final int newEntryCommandSourceId2 = 34;
final String myCommand2 = "Command: YYYYYYYYYYY";
final byte[] commandBytes2 = myCommand2.getBytes();
// when
directAppendRequest
.term(term)
.leaderId(leaderId)
.leaderCommit(leaderCommit)
.prevLogKey()
.term(prevLogEntryTerm)
.index(prevLogEntryIndex);
final Sequence.SequenceIterator<LogEntry> logEntryIterator =
directAppendRequest.logEntries().iterator();
assertThat(logEntryIterator.hasNext()).isEqualTo(false);
logEntry1
.term(newEntryTerm1)
.index(newEntryIndex1)
.command()
.sourceId(newEntryCommandSourceId1)
.commandIndex(newEntryCommandIndex1)
.commandPayload()
.bytesFrom(commandBytes1, 0, commandBytes1.length);
logEntry2
.term(newEntryTerm2)
.index(newEntryIndex2)
.command()
.sourceId(newEntryCommandSourceId2)
.commandIndex(newEntryCommandIndex2)
.commandPayload()
.bytesFrom(commandBytes2, 0, commandBytes2.length);
directAppendRequest.appendLogEntry(logEntry1);
directAppendRequest.appendLogEntry(logEntry2);
assertThat(logEntryIterator.hasNext()).isEqualTo(true);
// then
assertThat(directAppendRequest.type()).isEqualTo(MessageType.APPEND_REQUEST);
assertThat(directAppendRequest.term()).isEqualTo(term);
assertThat(directAppendRequest.leaderId()).isEqualTo(leaderId);
assertThat(directAppendRequest.leaderCommit()).isEqualTo(leaderCommit);
final int retrievedPrevLogEntryTerm = directAppendRequest.prevLogKey().term();
final long retrievedPrevLogEntryIndex = directAppendRequest.prevLogKey().index();
assertThat(retrievedPrevLogEntryTerm).isEqualTo(prevLogEntryTerm);
assertThat(retrievedPrevLogEntryIndex).isEqualTo(prevLogEntryIndex);
///// LogEntry 1 ////////
logEntryIterator.readNextTo(iteratingLogEntry);
final int retrievedCommandLogEntryTerm1 = iteratingLogEntry.logKey().term();
final long retrievedCommandLogEntryIndex1 = iteratingLogEntry.logKey().index();
assertThat(retrievedCommandLogEntryTerm1).isEqualTo(newEntryTerm1);
assertThat(retrievedCommandLogEntryIndex1).isEqualTo(newEntryIndex1);
final int retrievedCommandSourceId1 = iteratingLogEntry.command().commandKey().sourceId();
final long retrieveCommandIndex1 = iteratingLogEntry.command().commandKey().commandIndex();
final int retrievedCommandByteLength1 =
iteratingLogEntry.command().commandPayload().commandByteLength();
assertThat(retrievedCommandSourceId1).isEqualTo(newEntryCommandSourceId1);
assertThat(retrieveCommandIndex1).isEqualTo(newEntryCommandIndex1);
assertThat(retrievedCommandByteLength1).isEqualTo(commandBytes1.length);
final byte[] retrievedCommandBytes1 = new byte[retrievedCommandByteLength1];
iteratingLogEntry.command().commandPayload().bytesTo(retrievedCommandBytes1, 0);
assertThat(new String(retrievedCommandBytes1)).isEqualTo(myCommand1);
///// LogEntry 2 ////////
assertThat(logEntryIterator.hasNext()).isEqualTo(true);
logEntryIterator.readNextTo(iteratingLogEntry);
final int retrievedCommandLogEntryTerm2 = iteratingLogEntry.logKey().term();
final long retrievedCommandLogEntryIndex2 = iteratingLogEntry.logKey().index();
assertThat(retrievedCommandLogEntryTerm2).isEqualTo(newEntryTerm2);
assertThat(retrievedCommandLogEntryIndex2).isEqualTo(newEntryIndex2);
final int retrievedCommandSourceId2 = iteratingLogEntry.command().commandKey().sourceId();
final long retrieveCommandIndex2 = iteratingLogEntry.command().commandKey().commandIndex();
final int retrievedCommandByteLength2 =
iteratingLogEntry.command().commandPayload().commandByteLength();
assertThat(retrievedCommandSourceId2).isEqualTo(newEntryCommandSourceId2);
assertThat(retrieveCommandIndex2).isEqualTo(newEntryCommandIndex2);
assertThat(retrievedCommandByteLength2).isEqualTo(commandBytes2.length);
final byte[] retrievedCommandBytes2 = new byte[retrievedCommandByteLength2];
iteratingLogEntry.command().commandPayload().bytesTo(retrievedCommandBytes2, 0);
assertThat(new String(retrievedCommandBytes2)).isEqualTo(myCommand2);
///// LogEntry 3 - does not exist ////////
assertThat(logEntryIterator.hasNext()).isEqualTo(false);
final int extectedAppendRequestBytes =
DirectAppendRequest.EMPTY_LOG_BYTE_LENGTH
+ DirectLogEntry.EMPTY_COMMAND_BYTE_LENGTH * 2
+ commandBytes1.length
+ commandBytes2.length;
assertThat(directAppendRequest.byteLength()).isEqualTo(extectedAppendRequestBytes);
}
