Examples with FsLogStreamBuilder io.zeebe.logstreams.fs.FsLogStreamBuilder used on opensource projects

Example 1 with FsLogStreamBuilder

use of io.zeebe.logstreams.fs.FsLogStreamBuilder in project zeebe by zeebe-io.

the class LogStreamsManager method createLogStream.

/**
 * Creates a new log stream but does not open it. The caller has to call {@link LogStream#openAsync()} or
 * {@link LogStream#open()} before using it.
 *
 * @return the newly created log stream
 */
public LogStream createLogStream(final DirectBuffer topicName, final int partitionId) {
    ensureNotNullOrEmpty("topic name", topicName);
    ensureGreaterThanOrEqual("partition id", partitionId, 0);
    ensureLessThanOrEqual("partition id", partitionId, Short.MAX_VALUE);
    final FsLogStreamBuilder logStreamBuilder = LogStreams.createFsLogStream(topicName, partitionId);
    final String logName = logStreamBuilder.getLogName();
    final String logDirectory;
    final boolean deleteOnExit = false;
    int assignedLogDirectory = 0;
    if (logStreamsCfg.directories.length == 0) {
        throw new RuntimeException(String.format("Cannot start log %s, no log directory provided.", logName));
    } else if (logStreamsCfg.directories.length > 1) {
        assignedLogDirectory = new Random().nextInt(logStreamsCfg.directories.length - 1);
    }
    logDirectory = logStreamsCfg.directories[assignedLogDirectory] + File.separator + logName;
    final int logSegmentSize = logStreamsCfg.defaultLogSegmentSize * 1024 * 1024;
    final LogStream logStream = logStreamBuilder.deleteOnClose(deleteOnExit).logDirectory(logDirectory).actorScheduler(actorScheduler).logSegmentSize(logSegmentSize).build();
    addLogStream(logStream);
    return logStream;
}