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Package org.apache.oozie.util

Interface Summary

Instrumentable	Managed entities (like services) that implement this interface are injected with the system Instrumentation object.
Instrumentation.Element<T>	Gives access to a snapshot of an Instrumentation element (Counter, Timer).
Instrumentation.Variable<T>	Interface for instrumentation variables.
XCallable<T>	Extends Callable adding the concept of priority.

Class Summary

ClassUtils	Class utilities.
ConfigUtils
CoordActionsInDateRange	This class provides the utility of listing coordinator actions that were executed between a certain date range.
DateUtils	Date utility classes to parse and format datetimes in Oozie expected datetime formats.
ELConstantsFunctions	Base EL constants and functions.
ELEvaluator	JSP Expression Language Evaluator.
ELEvaluator.Context	Provides functions and variables for the EL evaluator.
ELUtils	EL utilities
GraphGenerator	Class to generate and plot runtime workflow DAG
Instrumentation	Instrumentation framework that supports Timers, Counters, Variables and Sampler instrumentation elements.
Instrumentation.Cron	Cron is a stopwatch that can be started/stopped several times.
Instrumentation.Timer	Timer Instrumentation element.
InstrumentUtils	Instrument utilities.
IOUtils	IO Utility methods.
JobUtils	Job utilities.
LogUtils	logging utilities.
MemoryLocks	In memory resource locking that provides READ/WRITE lock capabilities.
OozieRollingPolicy	Has the same behavior as the TimeBasedRollingPolicy.
ParamChecker	Utility class to check common parameter preconditions.
ParameterVerifier	Utility class to parse and verify the section in a workflow or coordinator job
PollablePriorityDelayQueue<E>
PriorityDelayQueue<E>	A Queue implementation that support queuing elements into the future and priority queuing.
PriorityDelayQueue.QueueElement<E>	Element wrapper required by the queue.
PropertiesUtils
StatusUtils
WritableUtils	Utility class to write/read Hadoop writables to/from a byte array.
XConfiguration	Extends Hadoop Configuration providing a new constructor which reads an XML configuration from an InputStream.
XLog	The XLog class extends the functionality of the Apache common-logging Log interface.
XLog.Info	LogInfo stores contextual information to create log prefixes.
XLogReader	Reads the input stream(log file) and applies the filters and writes it to output stream.
XLogStreamer	XLogStreamer streams the given log file to logWriter after applying the given filter.
XLogStreamer.Filter	Filter that will construct the regular expression that will be used to filter the log statement.
XmlUtils	XML utility methods.
XmlUtils.PrettyPrint	Pretty print string representation of an XML document that generates the pretty print on lazy mode when the XmlUtils.PrettyPrint.toString() method is invoked.

Enum Summary

XLog.Level

Exception Summary

ELEvaluationException	Exception thrown by EL functions when they find a transient error.
ParameterVerifierException	Exception thrown by org.apache.oozie.util.ParameterHandler .