Package io.pravega.common.util

Interface Summary

Interface	Description
ArrayView	Defines a generic read-only view of an index-based, array-like structure.
AsyncIterator<T>	Defines an Iterator for which every invocation results in an async call with a delayed response.
AsyncMap<K,V>	Defines a basic asynchronous Key-Value map which allows adding, getting and removing items.
BufferView	Defines a generic read-only view of a readable memory buffer with a known length.
BufferView.Collector<ExceptionT extends java.lang.Exception>	Defines a collector function that can be applied to a ByteBuffer.
BufferView.Reader	Defines a reader for a BufferView.
CloseableIterator<T,TEx extends java.lang.Exception>	Defines an Iterator that can be closed.
CompositeArrayView	Defines a generic view of a composite, index-based, array-like structure that is made up of one or more individual arrays.
ConfigBuilder.ConfigConstructor<R>
PriorityBlockingDrainingQueue.Item	Defines an Item that can be added to a PriorityBlockingDrainingQueue.
Retry.Retryable<ReturnT,RetryableET extends java.lang.Exception,NonRetryableET extends java.lang.Exception>
SortedIndex<V extends SortedIndex.IndexEntry>	Defines an Index that orders its IndexEntries by an Int64 (long) Key.
SortedIndex.IndexEntry	Defines a generic entry into an Index.
StructuredReadableBuffer	BufferView whose contents can be interpreted as structured data.
StructuredWritableBuffer	Modifiable BufferView whose contents can be interpreted as structured data.

Class Summary

Class	Description
AbstractBufferView	Base implementation of BufferView, providing common functionality.
AbstractBufferView.AbstractReader	Base implementation of BufferView.Reader.
AbstractDrainingQueue<T>	Thread-safe queue that dequeues one or more elements at once.
AvlTreeIndex<V extends SortedIndex.IndexEntry>	SortedIndex backed by an AVL Tree.
BitConverter	Helper methods for various Number to Bit conversions.
BlockingAsyncIterator<T>	This class is a wrapper over async iterator that implements java.util.Iterator interface.
BlockingDrainingQueue<T>	Single-priority implementation for AbstractDrainingQueue.
BooleanUtils
BufferedIterator<T>	Fetches items in batches and presents them in the form of an Iterator.
BufferViewBuilder	Builder for BufferView instances.
ByteArraySegment	Allows segmenting a byte array and operating only on that segment.
ByteBufferUtils
CertificateUtils
CircularBuffer	Convenience class wrapping byteBuffer to provide a circular buffer.
CollectionHelpers	Helper methods for collections.
CompositeByteArraySegment	A composite, index-based array-like structure that is made up of one or more individual arrays of equal size.
CompositeByteArraySegment.BufferLayout	Defines the internal layout of a CompositeByteArraySegment.
ConfigBuilder<T>	A builder for a generic Property-based configuration.
ConfigurationOptionsExtractor	A utility class for processing configuration items specified via system properties and/ environment variables.
ContinuationTokenAsyncIterator<Token,T>	This is a continuation token based async iterator implementation.
CopyOnWriteHashMap<K,V>	Wrapper class for HashMap that performs synchronized copy-on-write operations for any modification of its content.
DelimitedStringParser	Parses Strings as a sequence of key-value pairs and allows extracting values for specific keys.
EnumHelpers	General helpers on Enum types.
EnvVars
ImmutableDate
PriorityBlockingDrainingQueue<T extends PriorityBlockingDrainingQueue.Item>	AbstractDrainingQueue implementation with multiple priority levels.
Property<T>	Represents a Property that can be used for configuration.
RedBlackTreeIndex<V extends SortedIndex.IndexEntry>	SortedIndex backed by a Red-Black Tree (java.util.TreeMap).
ResourcePool<T>	Resource pool class implements functionality for creating and maintaining a pool of reusable resources.
ResourcePool.CloseableResource<T>	A closeable resource wrapper class which returns the resource back to the pool automatically once it is closed.
Retry	A Utility class to support retrying something that can fail with exponential backoff.
Retry.RetryAndThrowBase<ThrowsT extends java.lang.Exception>
Retry.RetryAndThrowConditionally	Returned by Retry.RetryExceptionally.throwingOn(Class) to add the type of exception that should cause the method to throw right away.
Retry.RetryAndThrowExceptionally<RetryT extends java.lang.Exception,ThrowsT extends java.lang.Exception>	Returned by Retry.RetryExceptionally.throwingOn(Class) to add the type of exception that should cause the method to throw right away.
Retry.RetryExceptionally<RetryT extends java.lang.Exception>	Returned by Retry.RetryWithBackoff.retryingOn(Class) to add the type of exception that should result in a retry.
Retry.RetryUnconditionally	Returned by Retry.indefinitelyWithExpBackoff(long, int, long, Consumer) (Class)} to retry indefinitely.
Retry.RetryWithBackoff	Returned by Retry.withExpBackoff(long, int, int) to set the retry schedule.
ReusableFutureLatch<T>	This class is similar to ReusableLatch but that works with CompletableFuture so that blocking can be async and exceptions and results can be passed.
ReusableLatch	This class is similar to CountDownLatch and Semaphore.
SimpleCache<KeyT,ValueT>	Lightweight, thread-safe, key-value pair cache built on top of Java HashMap that supports eviction based on a maximum size or last-access-time.
SimpleDeque<T>	Simplified Deque implementation that provides an efficient method to remove multiple items at once from the head.
ToStringUtils
TypedProperties	* Wrapper for a java.util.Properties object, that sections it based on a namespace.

Exception Summary

Exception	Description
BufferView.Reader.OutOfBoundsException	Exception that is thrown whenever an attempt is made to read beyond the bounds of a BufferView.
ConfigurationException	Exception that is thrown whenever a bad configuration is detected.
IllegalDataFormatException	Exception that is thrown whenever a data formatting error was detected.
InvalidPropertyValueException	Exception that is thrown whenever a Property Value is invalid based on what is expected.
MissingPropertyException	Exception that is thrown whenever a required Configuration Property is Missing.
RetriesExhaustedException	Exception thrown by Retry utility class when all of the configured number of attempts have failed.