Package org.apache.solr.common.util

Common utility classes reused on both clients & server.

See: Description

Interface Summary

Interface	Description
Cache<K,V>
ContentStream
DataEntry	This represents a data entry in the payload/stream.
DataEntry.EntryListener
DataEntry.FastDecoder
ExecutorUtil.InheritableThreadLocalProvider	Any class which wants to carry forward the threadlocal values to the threads run by threadpools must implement this interface and the implementation should be registered here
JavaBinCodec.ObjectResolver	Allows extension of JavaBinCodec to support serialization of arbitrary data types.
JavaBinCodec.WritableDocFields
JsonRecordReader.Handler	Implement this interface to stream records as and when one is found.
JsonTextWriter
ReflectMapWriter
RetryUtil.BooleanRetryCmd
RetryUtil.RetryCmd
TextWriter
Utf8CharSequence	A byte[] backed String
Utils.InputStreamConsumer<T>
ValidatingJsonMap.PredicateWithErrMsg<T>
XML.Writable

Class Summary

Class	Description
Base64	Static methods for translating Base64 encoded strings to byte arrays and vice-versa.
ByteArrayUtf8CharSequence	A mutable byte[] backed Utf8CharSequence.
BytesBlock
ByteUtils
CommandOperation
CommonTestInjection	Allows random faults to be injected in running code during test runs across all solr packages.
ContentStreamBase	Three concrete implementations for ContentStream - one for File/URL/String
ContentStreamBase.ByteArrayStream	Construct a ContentStream from a File
ContentStreamBase.FileStream	Construct a ContentStream from a File
ContentStreamBase.StringStream	Construct a ContentStream from a String
ContentStreamBase.URLStream	Construct a ContentStream from a URL This uses a URLConnection to get the content stream
DataInputInputStream	An abstract DataInput that extends InputStream
ExecutorUtil
ExecutorUtil.MDCAwareThreadPoolExecutor
FastInputStream	Single threaded buffered InputStream Internal Solr use only, subject to change.
FastJavaBinDecoder
FastOutputStream	Single threaded buffered OutputStream Internal Solr use only, subject to change.
FastWriter	Single threaded BufferedWriter Internal Solr use only, subject to change.
Hash	Fast, well distributed, cross-platform hash functions.
Hash.LongPair	128 bits of state
IOUtils
JavaBinCodec	Defines a space-efficient serialization/deserialization format for transferring data.
JavaBinCodec.StringCache
JsonRecordReader	A Streaming parser for json to emit one record at a time.
JsonSchemaCreator	Creates a json schema from an annotated Java Object.
JsonSchemaValidator	A very basic and lightweight json schema parsing and data validation tool.
MapBackedCache<K,V>
MurmurHash2	This is a very fast, non-cryptographic hash suitable for general hash-based lookup.
NamedList<T>	A simple container class for modeling an ordered list of name/value pairs.
NamedList.NamedListEntry<T>	Helper class implementing Map.Entry<String, T> to store the key-value relationship in NamedList (the keys of which are String-s)
ObjectCache	Simple object cache with a type-safe accessor.
ObjectReleaseTracker
Pair<T1,T2>
PathTrie<T>	A utility class to efficiently parse/store/lookup hierarchical paths which are templatized like /collections/{collection}/shards/{shard}/{replica}
RetryUtil
SimpleOrderedMap<T>	SimpleOrderedMap is a NamedList where access by key is more important than maintaining order when it comes to representing the held data in other forms, as ResponseWriters normally do.
SolrjNamedThreadFactory	Deprecated use SolrNamedThreadFactory instead.
SolrJSONWriter	Use this to serialize an object into Json.
SolrNamedThreadFactory	A ThreadFactory that names threads with the given prefix.
StringBytes
StrUtils
Template
TimeSource	Source of time.
TimeSource.CurrentTimeSource	Implementation that uses System.currentTimeMillis().
TimeSource.NanoTimeSource	Implementation that uses System.nanoTime().
TimeSource.SimTimeSource	Implementation that uses TimeSource.NANO_TIME accelerated by a double multiplier.
URLUtil
Utils
ValidatingJsonMap
WriteableValue
XML
XMLErrorLogger

Enum Summary

Enum	Description
DataEntry.Type	The types are a superset of json
FastJavaBinDecoder.Tag

Annotation Types Summary

Annotation Type	Description
SuppressForbidden	Annotation to suppress forbidden-apis errors inside a whole class, a method, or a field.

Package org.apache.solr.common.util Description

Common utility classes reused on both clients & server.