org.apache.oozie.dependency

Class DependencyChecker

java.lang.Object

org.apache.oozie.dependency.DependencyChecker

public class DependencyChecker
extends Object

Constructor Summary

Constructors

Constructor and Description
DependencyChecker()

Method Summary

Modifier and Type	Method and Description
static ActionDependency	checkForAvailability(List<String> missingDependencies, org.apache.hadoop.conf.Configuration actionConf, boolean stopOnFirstMissing) Get the currently missing and available dependencies after checking the list of known missing dependencies against the source.
static ActionDependency	checkForAvailability(String missingDependencies, org.apache.hadoop.conf.Configuration actionConf, boolean stopOnFirstMissing) Get the currently missing and available dependencies after checking the list of known missing dependencies against the source.
static String[]	dependenciesAsArray(String missingDependencies) Return a array of missing dependencies
static String	dependenciesAsString(List<String> missingDependencies) Return a string of missing dependencies concatenated by CoordELFunctions.INSTANCE_SEPARATOR

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DependencyChecker

public DependencyChecker()

Method Detail

dependenciesAsString

public static String dependenciesAsString(List<String> missingDependencies)

Return a string of missing dependencies concatenated by CoordELFunctions.INSTANCE_SEPARATOR

Parameters:

missingDependencies - list of missing dependencies

Returns:

missing dependencies as a string

dependenciesAsArray

public static String[] dependenciesAsArray(String missingDependencies)

Return a array of missing dependencies

Parameters:

missingDependencies - missing dependencies concatenated by CoordELFunctions.INSTANCE_SEPARATOR

Returns:

missing dependencies as a array

checkForAvailability

public static ActionDependency checkForAvailability(String missingDependencies,
                                                    org.apache.hadoop.conf.Configuration actionConf,
                                                    boolean stopOnFirstMissing)
                                             throws CommandException

Get the currently missing and available dependencies after checking the list of known missing dependencies against the source.

Parameters:

missingDependencies - known missing dependencies

actionConf - Configuration for the action

stopOnFirstMissing - Does not continue check for the rest of list if there is a missing dependency

Returns:

ActionDependency which has the list of missing and available dependencies

Throws:

CommandException - in case of error

checkForAvailability

public static ActionDependency checkForAvailability(List<String> missingDependencies,
                                                    org.apache.hadoop.conf.Configuration actionConf,
                                                    boolean stopOnFirstMissing)
                                             throws CommandException

Get the currently missing and available dependencies after checking the list of known missing dependencies against the source.

Parameters:

missingDependencies - known missing dependencies

actionConf - Configuration for the action

stopOnFirstMissing - Does not continue check for the rest of list if there is a missing dependency

Returns:

ActionDependency which has the list of missing and available dependencies

Throws:

CommandException - in case of error