Package org.apache.storm.utils
Class ShellProcess
- java.lang.Object
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- org.apache.storm.utils.ShellProcess
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- All Implemented Interfaces:
Serializable
public class ShellProcess extends Object implements Serializable
- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description StringcomponentNamestatic org.slf4j.LoggerLOGNumberpidISerializerserializerstatic org.slf4j.LoggerShellLogger
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Constructor Summary
Constructors Constructor Description ShellProcess(String[] command)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voiddestroy()StringgetComponentName()StringgetErrorsString()intgetExitCode()Get exit code.NumbergetPid()Get PID.StringgetProcessInfoString()StringgetProcessTerminationInfoString()Numberlaunch(Map<String,Object> conf, TopologyContext context)Numberlaunch(Map<String,Object> conf, TopologyContext context, boolean changeDirectory)voidlogErrorStream()ShellMsgreadShellMsg()voidsetEnv(Map<String,String> env)voidwriteBoltMsg(BoltMsg msg)voidwriteSpoutMsg(SpoutMsg msg)voidwriteTaskIds(List<Integer> taskIds)
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Field Detail
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LOG
public static final org.slf4j.Logger LOG
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ShellLogger
public static org.slf4j.Logger ShellLogger
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serializer
public ISerializer serializer
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pid
public Number pid
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componentName
public String componentName
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Constructor Detail
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ShellProcess
public ShellProcess(String[] command)
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Method Detail
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launch
public Number launch(Map<String,Object> conf, TopologyContext context)
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launch
public Number launch(Map<String,Object> conf, TopologyContext context, boolean changeDirectory)
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destroy
public void destroy()
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readShellMsg
public ShellMsg readShellMsg() throws IOException
- Throws:
IOException
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writeBoltMsg
public void writeBoltMsg(BoltMsg msg) throws IOException
- Throws:
IOException
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writeSpoutMsg
public void writeSpoutMsg(SpoutMsg msg) throws IOException
- Throws:
IOException
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writeTaskIds
public void writeTaskIds(List<Integer> taskIds) throws IOException
- Throws:
IOException
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logErrorStream
public void logErrorStream()
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getErrorsString
public String getErrorsString()
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getPid
public Number getPid()
Get PID.- Returns:
- pid, if the process has been launched, null otherwise.
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getComponentName
public String getComponentName()
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getExitCode
public int getExitCode()
Get exit code.- Returns:
- exit code of the process if process is terminated, -1 if process is not started or terminated.
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getProcessInfoString
public String getProcessInfoString()
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getProcessTerminationInfoString
public String getProcessTerminationInfoString()
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