类 SystemCommandTasklet

字段详细资料

• logger

  protected static final org.apache.commons.logging.Log logger

构造器详细资料

• SystemCommandTasklet

  public SystemCommandTasklet()

方法详细资料

• execute

  public RepeatStatus execute​(StepContribution contribution,
                              ChunkContext chunkContext)
                       throws java.lang.Exception

  Execute system command and map its exit code to ExitStatus using SystemProcessExitCodeMapper.

  指定者:

  execute 在接口中 Tasklet

  参数:

  contribution - mutable state to be passed back to update the current step execution

  chunkContext - attributes shared between invocations but not between restarts

  返回:

  an RepeatStatus indicating whether processing is continuable. Returning null is interpreted as RepeatStatus.FINISHED

  抛出:

  java.lang.Exception - thrown if error occurs during execution.

• setCommand

  public void setCommand​(java.lang.String command)

  参数:

  command - command to be executed in a separate system process

• setEnvironmentParams

  public void setEnvironmentParams​(java.lang.String[] envp)

  参数:

  envp - environment parameter values, inherited from parent process when not set (or set to null).

• setWorkingDirectory

  public void setWorkingDirectory​(java.lang.String dir)

  参数:

  dir - working directory of the spawned process, inherited from parent process when not set (or set to null).

• afterPropertiesSet

  public void afterPropertiesSet()
                          throws java.lang.Exception

  指定者:

  afterPropertiesSet 在接口中 org.springframework.beans.factory.InitializingBean

  抛出:

  java.lang.Exception

• setJobExplorer

  public void setJobExplorer​(JobExplorer jobExplorer)

• setSystemProcessExitCodeMapper

  public void setSystemProcessExitCodeMapper​(SystemProcessExitCodeMapper systemProcessExitCodeMapper)

  参数:

  systemProcessExitCodeMapper - maps system process return value to ExitStatus returned by Tasklet. SimpleSystemProcessExitCodeMapper is used by default.

• setTimeout

  public void setTimeout​(long timeout)

  Timeout in milliseconds.

  参数:

  timeout - upper limit for how long the execution of the external program is allowed to last.

• setTerminationCheckInterval

  public void setTerminationCheckInterval​(long checkInterval)

  The time interval how often the tasklet will check for termination status.

  参数:

  checkInterval - time interval in milliseconds (1 second by default).

• beforeStep

  public void beforeStep​(StepExecution stepExecution)

  Get a reference to StepExecution for interrupt checks during system command execution.

  指定者:

  beforeStep 在接口中 StepExecutionListener

  覆盖:

  beforeStep 在类中 StepExecutionListenerSupport

  参数:

  stepExecution - instance of StepExecution.

• setTaskExecutor

  public void setTaskExecutor​(org.springframework.core.task.TaskExecutor taskExecutor)

  Sets the task executor that will be used to execute the system command NB! Avoid using a synchronous task executor

  参数:

  taskExecutor - instance of TaskExecutor.

• setInterruptOnCancel

  public void setInterruptOnCancel​(boolean interruptOnCancel)

  If true tasklet will attempt to interrupt the thread executing the system command if setTimeout(long) has been exceeded or user interrupts the job. false by default

  参数:

  interruptOnCancel - boolean determines if process should be interrupted

• stop

  public void stop()

  Will interrupt the thread executing the system command only if setInterruptOnCancel(boolean) has been set to true. Otherwise the underlying command will be allowed to finish before the tasklet ends.

  指定者:

  stop 在接口中 StoppableTasklet

  从以下版本开始:

  3.0

  另请参阅:

  StoppableTasklet.stop()