Package org.apache.oozie.util

Interface Summary

Interface	Description
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

Class	Description
AuthUrlClient
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
FixedJsonInstanceSerializer<T>
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.
JaasConfiguration	Creates a programmatic version of a jaas.conf file.
JobsFilterUtils
JobUtils	Job utilities.
LogUtils	logging utilities.
MappingRule	Class for rule mapping
MetricsInstrumentation	Instrumentation framework that is mostly compatible with Instrumentation but is backed by Codahale Metrics.
MetricsInstrumentation.Sampler
MultiFileReader	Implementation of a Reader which can be used to read in multiple files sequentially.
OozieRollingPolicy	Has the same behavior as the TimeBasedRollingPolicy.
Pair<T,S>	Utility class for holding a pair of data
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
SimpleTimestampedMessageParser	A simplified version of TimestampedMessageParser which doesn't do any filtering when reading the lines from the Reader.
StatusUtils
TimestampedMessageParser	Encapsulates the parsing and filtering of the log messages from a BufferedReader.
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.
XLogAuditFilter
XLogFilter	Filter that will construct the regular expression that will be used to filter the log statement.
XLogStreamer	XLogStreamer streams the given log file to writer after applying the given filter.
XLogUserFilterParam
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.
ZKUtils	This class provides a singleton for interacting with ZooKeeper that other classes can use.

Enum Summary

Enum	Description
XLog.Level

Exception Summary

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