org.apache.solr.client.solrj.io.stream

类 CloudSolrStream

java.lang.Object

org.apache.solr.client.solrj.io.stream.TupleStream

org.apache.solr.client.solrj.io.stream.CloudSolrStream

所有已实现的接口:

Closeable, Serializable, AutoCloseable, Expressible, MapSerializable, MapWriter, NavigableObject

直接已知子类:

DrillStream, ParallelStream, ShuffleStream, TopicStream

public class CloudSolrStream
extends TupleStream
implements Expressible

Connects to Zookeeper to pick replicas from a specific collection to send the query to. Under the covers the SolrStream instances send the query to the replicas. SolrStreams are opened using a thread pool, but a single thread is used to iterate and merge Tuples from each SolrStream.

从以下版本开始:

5.1.0

另请参阅:

序列化表格

嵌套类概要

嵌套类

限定符和类型	类和说明
protected class	CloudSolrStream.StreamOpener
protected class	CloudSolrStream.TupleWrapper

从类继承的嵌套类/接口 org.apache.solr.client.solrj.io.stream.TupleStream

TupleStream.IgnoreException

从接口继承的嵌套类/接口 org.apache.solr.common.MapWriter

MapWriter.EntryWriter

字段概要

字段

限定符和类型	字段和说明
protected CloudSolrClient	cloudSolrClient
protected String	collection
protected StreamComparator	comp
protected Map<String,Tuple>	eofTuples
protected Map<String,String>	fieldMappings
protected ModifiableSolrParams	params
protected List<TupleStream>	solrStreams
protected StreamContext	streamContext
protected TreeSet<CloudSolrStream.TupleWrapper>	tuples
protected String	zkHost

构造器概要

构造器

限定符	构造器和说明
protected	CloudSolrStream()
	CloudSolrStream(StreamExpression expression, StreamFactory factory)
	CloudSolrStream(String zkHost, String collectionName, SolrParams params)

方法概要

限定符和类型	方法和说明
protected Tuple	_read()
protected ModifiableSolrParams	adjustParams(ModifiableSolrParams params)
List<TupleStream>	children()
void	close() Closes the CloudSolrStream
protected void	constructStreams()
Map<String,Tuple>	getEofTuples()
static Slice[]	getSlices(String collectionName, ZkStateReader zkStateReader, boolean checkAlias)
StreamComparator	getStreamSort() Return the stream sort - ie, the order in which records are returned
void	open() Opens the CloudSolrStream
Tuple	read()
void	setFieldMappings(Map<String,String> fieldMappings)
void	setStreamContext(StreamContext context)
void	setTrace(boolean trace)
Explanation	toExplanation(StreamFactory factory) Returns an explanation about the stream object
StreamExpression	toExpression(StreamFactory factory)

从类继承的方法 org.apache.solr.client.solrj.io.stream.TupleStream

getCost, getShards, getShards, getStreamNodeId, writeMap

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.solr.common.MapWriter

jsonStr, toMap

从接口继承的方法 org.apache.solr.common.NavigableObject

_forEachEntry, _forEachEntry, _forEachEntry, _get, _get, _getStr, _getStr, _size

字段详细资料

zkHost

protected String zkHost

collection

protected String collection

params

protected ModifiableSolrParams params

fieldMappings

protected Map<String,String> fieldMappings

comp

protected StreamComparator comp

eofTuples

protected transient Map<String,Tuple> eofTuples

cloudSolrClient

protected transient CloudSolrClient cloudSolrClient

solrStreams

protected transient List<TupleStream> solrStreams

tuples

protected transient TreeSet<CloudSolrStream.TupleWrapper> tuples

streamContext

protected transient StreamContext streamContext

构造器详细资料

CloudSolrStream

protected CloudSolrStream()

CloudSolrStream

public CloudSolrStream(String zkHost,
                       String collectionName,
                       SolrParams params)
                throws IOException

参数:

zkHost - Zookeeper ensemble connection string

collectionName - Name of the collection to operate on

params - Map<String, String[]> of parameter/value pairs

抛出:

IOException - Something went wrong

CloudSolrStream

public CloudSolrStream(StreamExpression expression,
                       StreamFactory factory)
                throws IOException

抛出:

IOException

方法详细资料

toExpression

public StreamExpression toExpression(StreamFactory factory)
                              throws IOException

指定者:

toExpression 在接口中 Expressible

抛出:

IOException

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

从接口复制的说明: Expressible

Returns an explanation about the stream object

指定者:

toExplanation 在接口中 Expressible

指定者:

toExplanation 在类中 TupleStream

参数:

factory - Stream factory for this, contains information about the function name

返回:

Explanation about this stream object containing explanations of any child stream objects

抛出:

IOException - throw on any error

setFieldMappings

public void setFieldMappings(Map<String,String> fieldMappings)

setTrace

public void setTrace(boolean trace)

setStreamContext

public void setStreamContext(StreamContext context)

指定者:

setStreamContext 在类中 TupleStream

open

public void open()
          throws IOException

Opens the CloudSolrStream

指定者:

open 在类中 TupleStream

抛出:

IOException

getEofTuples

public Map<String,Tuple> getEofTuples()

children

public List<TupleStream> children()

指定者:

children 在类中 TupleStream

getSlices

public static Slice[] getSlices(String collectionName,
                                ZkStateReader zkStateReader,
                                boolean checkAlias)
                         throws IOException

抛出:

IOException

constructStreams

protected void constructStreams()
                         throws IOException

抛出:

IOException

close

public void close()
           throws IOException

Closes the CloudSolrStream

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

指定者:

close 在类中 TupleStream

抛出:

IOException

getStreamSort

public StreamComparator getStreamSort()

Return the stream sort - ie, the order in which records are returned

指定者:

getStreamSort 在类中 TupleStream

read

public Tuple read()
           throws IOException

指定者:

read 在类中 TupleStream

抛出:

IOException

_read

protected Tuple _read()
               throws IOException

抛出:

IOException

adjustParams

protected ModifiableSolrParams adjustParams(ModifiableSolrParams params)