本文整理了Java中org.agrona.IoUtil.deleteIfExists()方法的一些代码示例，展示了IoUtil.deleteIfExists()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。IoUtil.deleteIfExists()方法的具体详情如下：
包路径：org.agrona.IoUtil
类名称：IoUtil
方法名：deleteIfExists

IoUtil.deleteIfExists介绍

[英]Delete file only if it already exists.
[中]仅当文件已存在时才删除该文件。

代码示例

代码示例来源：origin: real-logic/agrona

@AfterClass
public static void tearDown()
{
  CloseHelper.close(channel);
  IoUtil.deleteIfExists(new File(PATH));
}

代码示例来源：origin: kaazing/gateway

/**
 * Method creating the monitoring MMF
 */
private void createMonitoringFile() {
  String monitoringDirName = getMonitoringDirName();
  monitoringDir = new File(monitoringDirName);
  File monitoringFile = new File(monitoringDir, gatewayId);
  IoUtil.deleteIfExists(monitoringFile);
  monitorFileWriter.initialize(monitoringFile);
}

代码示例来源：origin: real-logic/artio

private void deleteFiles()
  {
    deleteIfExists(new File(INDEX_FILE_PATH));
    deleteIfExists(writablePath(INDEX_FILE_PATH));
    deleteIfExists(passingPath(INDEX_FILE_PATH));
  }
}

代码示例来源：origin: real-logic/artio

MonitoringFile(final boolean newFile, final CommonConfiguration configuration)
{
  final File file = new File(configuration.monitoringFile()).getAbsoluteFile();
  absolutePath = file.getAbsolutePath();
  CloseChecker.validate(absolutePath);
  CloseChecker.onOpen(absolutePath, this);
  final int length;
  if (newFile)
  {
    IoUtil.deleteIfExists(file);
    length = configuration.monitoringBuffersLength();
    mappedByteBuffer = LoggerUtil.mapNewFile(file, length);
  }
  else
  {
    if (!file.exists() || !file.canRead() || !file.isFile())
    {
      throw new IllegalStateException("Unable to read from file: " + file);
    }
    mappedByteBuffer = IoUtil.mapExistingFile(file, "counters file");
    length = mappedByteBuffer.capacity();
  }
  final AtomicBuffer mappedFile = new UnsafeBuffer(mappedByteBuffer);
  errorBuffer = new UnsafeBuffer(mappedFile, 0, length);
}

代码示例来源：origin: real-logic/artio

@Test
public void copiesOldSessionContextFile() throws IOException
{
  final File backupLocation = File.createTempFile("sessionContexts", "tmp");
  try
  {
    final SessionContext aContext = sessionContexts.onLogon(aSession);
    sessionContexts.onDisconnect(aContext.sessionId());
    final byte[] oldData = new byte[BUFFER_SIZE];
    buffer.getBytes(0, oldData);
    sessionContexts.reset(backupLocation);
    verify(mappedFile).transferTo(backupLocation);
  }
  finally
  {
    IoUtil.deleteIfExists(backupLocation);
  }
}

代码示例来源：origin: real-logic/artio

@Before
public void setUp()
{
  mediaDriver = TestFixtures.launchMediaDriver();
  aeronArchive = AeronArchive.connect();
  recordingIdLookup = new RecordingIdLookup(new YieldingIdleStrategy(), aeron().countersReader());
  aeronArchive.startRecording(CHANNEL, STREAM_ID, SourceLocation.LOCAL);
  final Aeron aeron = aeron();
  publication = aeron.addExclusivePublication(CHANNEL, STREAM_ID);
  subscription = aeron.addSubscription(CHANNEL, STREAM_ID);
  final File logFile = logFile(SESSION_ID);
  IoUtil.deleteIfExists(logFile);
  newReplayIndex();
  query = new ReplayQuery(
    DEFAULT_LOG_FILE_DIR,
    DEFAULT_LOGGER_CACHE_NUM_SETS,
    DEFAULT_LOGGER_CACHE_SET_SIZE,
    existingBufferFactory,
    DEFAULT_OUTBOUND_LIBRARY_STREAM,
    new NoOpIdleStrategy(),
    aeronArchive,
    errorHandler,
    DEFAULT_ARCHIVE_REPLAY_STREAM);
  returnBuffer(indexBuffer, SESSION_ID);
  returnBuffer(ByteBuffer.allocate(16 * 1024), SESSION_ID_2);
  when(newBufferFactory.map(any(), anyInt())).thenReturn(indexBuffer);
}