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java.lang.Object org.springframework.data.hadoop.mapreduce.JarTasklet
public class JarTasklet
Batch tasklet for executing Hadoop jars.
Constructor Summary | |
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JarTasklet()
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Method Summary | |
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void |
afterPropertiesSet()
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protected ClassLoader |
createClassLoaderForJar(Resource jar,
ClassLoader parentCL,
Configuration cfg)
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RepeatStatus |
execute(StepContribution contribution,
ChunkContext chunkContext)
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protected Object |
invokeTargetObject(Configuration cfg,
Object target,
Class<Object> targetClass,
String[] args)
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protected Class<T> |
loadClass(String className,
ClassLoader cl)
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protected void |
postExecution(Configuration cfg)
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protected void |
preExecution(Configuration cfg)
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protected Configuration |
resolveConfiguration()
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protected Class<T> |
resolveTargetClass(Configuration cfg)
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protected Object |
resolveTargetObject(Class<Object> type)
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void |
setArchives(Resource... archives)
Sets the archives to be unarchive to the map reduce cluster. |
void |
setArguments(String... arguments)
Sets the arguments. |
void |
setBeanClassLoader(ClassLoader classLoader)
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void |
setCloseFs(boolean closeFs)
Indicates whether or not to close the Hadoop file-systems resulting from the custom code execution. |
void |
setConfiguration(Configuration configuration)
Sets the configuration. |
void |
setFiles(Resource... files)
Sets the files to be copied to the map reduce cluster. |
void |
setJar(Resource jar)
Sets the target code jar. |
void |
setLibs(Resource... libJars)
Sets the jar files to include in the classpath. |
void |
setMainClass(String className)
Sets the target class by name. |
void |
setProperties(Properties properties)
Sets the properties. |
void |
setUser(String user)
Sets the user impersonation (optional) for running this job. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JarTasklet()
Method Detail |
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public RepeatStatus execute(StepContribution contribution, ChunkContext chunkContext) throws Exception
execute
in interface Tasklet
Exception
protected ClassLoader createClassLoaderForJar(Resource jar, ClassLoader parentCL, Configuration cfg)
protected Object resolveTargetObject(Class<Object> type)
protected Object invokeTargetObject(Configuration cfg, Object target, Class<Object> targetClass, String[] args) throws Exception
Exception
protected void preExecution(Configuration cfg)
protected void postExecution(Configuration cfg)
public void afterPropertiesSet() throws Exception
afterPropertiesSet
in interface InitializingBean
Exception
public void setMainClass(String className)
className
- the target class nameprotected Configuration resolveConfiguration() throws Exception
Exception
protected Class<T> resolveTargetClass(Configuration cfg) throws Exception
Exception
protected Class<T> loadClass(String className, ClassLoader cl)
public void setJar(Resource jar)
jar
- public void setArguments(String... arguments)
arguments
- The arguments to set.public void setConfiguration(Configuration configuration)
configuration
- The configuration to set.public void setProperties(Properties properties)
properties
- The properties to set.public void setBeanClassLoader(ClassLoader classLoader)
setBeanClassLoader
in interface BeanClassLoaderAware
public void setCloseFs(boolean closeFs)
closeFs
- the new close fspublic void setLibs(Resource... libJars)
mydir/*.jar
), which the
Spring container will automatically resolve.
libJars
- The jar files to include in the classpath.public void setFiles(Resource... files)
mydir/*.txt
), which the
Spring container will automatically resolve.
files
- The files to copy.public void setArchives(Resource... archives)
mydir/*.zip
), which the
Spring container will automatically resolve.
archives
- The archives to unarchive on the compute machines.public void setUser(String user)
user
- user/group information
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