Package org.apache.hugegraph.computer.core.sort.sorting

Class SortManager

java.lang.Object

org.apache.hugegraph.computer.core.sort.sorting.SortManager

All Implemented Interfaces:

Manager

Direct Known Subclasses:

RecvSortManager, SendSortManager

public abstract class SortManager
extends java.lang.Object
implements Manager

Field Summary

Fields

Modifier and Type	Field	Description
static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
SortManager(org.apache.hugegraph.computer.core.common.ComputerContext context)

Method Summary

Modifier and Type	Method	Description
void	close(org.apache.hugegraph.computer.core.config.Config config)	Close the resources used in the computation.
void	init(org.apache.hugegraph.computer.core.config.Config config)	Used to add the resources needed by the computation.
PeekableIterator<KvEntry>	iterator(java.util.List<java.lang.String> outputs, boolean withSubKv)
java.util.concurrent.CompletableFuture<java.lang.Void>	mergeBuffers(java.util.List<org.apache.hugegraph.computer.core.io.RandomAccessInput> inputs, java.lang.String path, boolean withSubKv, OuterSortFlusher flusher)
void	mergeInputs(java.util.List<java.lang.String> inputs, java.util.List<java.lang.String> outputs, boolean withSubKv, OuterSortFlusher flusher)
abstract java.lang.String	name()	The unique identify name.
java.util.concurrent.CompletableFuture<java.nio.ByteBuffer>	sort(MessageType type, WriteBuffers buffer)
protected java.lang.Integer	threadNum(org.apache.hugegraph.computer.core.config.Config config)
protected abstract java.lang.String	threadPrefix()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hugegraph.computer.core.manager.Manager

afterSuperstep, beforeSuperstep, inited

Field Detail

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

SortManager

public SortManager(org.apache.hugegraph.computer.core.common.ComputerContext context)

Method Detail

name

public abstract java.lang.String name()

Description copied from interface: Manager

The unique identify name.

Specified by:

name in interface Manager

threadPrefix

protected abstract java.lang.String threadPrefix()

threadNum

protected java.lang.Integer threadNum(org.apache.hugegraph.computer.core.config.Config config)

init

public void init(org.apache.hugegraph.computer.core.config.Config config)

Description copied from interface: Manager

Used to add the resources needed by the computation. Be called only one time before all supersteps start.

Specified by:

init in interface Manager

close

public void close(org.apache.hugegraph.computer.core.config.Config config)

Description copied from interface: Manager

Close the resources used in the computation. Be called only one time after all supersteps ended.

Specified by:

close in interface Manager

sort

public java.util.concurrent.CompletableFuture<java.nio.ByteBuffer> sort(MessageType type,
                                                                        WriteBuffers buffer)

mergeBuffers

public java.util.concurrent.CompletableFuture<java.lang.Void> mergeBuffers(java.util.List<org.apache.hugegraph.computer.core.io.RandomAccessInput> inputs,
                                                                           java.lang.String path,
                                                                           boolean withSubKv,
                                                                           OuterSortFlusher flusher)

mergeInputs

public void mergeInputs(java.util.List<java.lang.String> inputs,
                        java.util.List<java.lang.String> outputs,
                        boolean withSubKv,
                        OuterSortFlusher flusher)

iterator

public PeekableIterator<KvEntry> iterator(java.util.List<java.lang.String> outputs,
                                          boolean withSubKv)