org.apache.flink.streaming.connectors.wikiedits

类 WikipediaEditsSource

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.source.RichSourceFunction<WikipediaEditEvent>

org.apache.flink.streaming.connectors.wikiedits.WikipediaEditsSource

所有已实现的接口:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.streaming.api.functions.source.SourceFunction<WikipediaEditEvent>

public class WikipediaEditsSource
extends org.apache.flink.streaming.api.functions.source.RichSourceFunction<WikipediaEditEvent>

This class is a SourceFunction that reads WikipediaEditEvent instances from the IRC channel #en.wikipedia.

另请参阅:

序列化表格

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.streaming.api.functions.source.SourceFunction

org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<T>

字段概要

字段

限定符和类型	字段和说明
static String	DEFAULT_CHANNEL IRC channel to join.
static String	DEFAULT_HOST Hostname of the server to connect to.
static int	DEFAULT_PORT Port of the server to connect to.

构造器概要

构造器

构造器和说明
WikipediaEditsSource() Creates a source reading WikipediaEditEvent instances from the IRC channel #en.wikipedia.
WikipediaEditsSource(String host, int port, String channel) Creates a source reading WikipediaEditEvent instances from the specified IRC channel.

方法概要

限定符和类型	方法和说明
void	cancel()
void	run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<WikipediaEditEvent> ctx)

从类继承的方法 org.apache.flink.api.common.functions.AbstractRichFunction

close, getIterationRuntimeContext, getRuntimeContext, open, setRuntimeContext

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_HOST

public static final String DEFAULT_HOST

Hostname of the server to connect to.

另请参阅:

常量字段值

DEFAULT_PORT

public static final int DEFAULT_PORT

Port of the server to connect to.

另请参阅:

常量字段值

DEFAULT_CHANNEL

public static final String DEFAULT_CHANNEL

IRC channel to join.

另请参阅:

常量字段值

构造器详细资料

WikipediaEditsSource

public WikipediaEditsSource()

Creates a source reading WikipediaEditEvent instances from the IRC channel #en.wikipedia.

This creates a separate Thread for the IRC connection.

WikipediaEditsSource

public WikipediaEditsSource(String host,
                            int port,
                            String channel)

Creates a source reading WikipediaEditEvent instances from the specified IRC channel.

In most cases, you want to use the default WikipediaEditsSource(java.lang.String, int, java.lang.String) constructor. This constructor is meant to be used only if there is a problem with the default constructor.

参数:

host - The IRC server to connect to.

port - The port of the IRC server to connect to.

channel - The channel to join. Messages not matching the expected format will be ignored.

方法详细资料

run

public void run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<WikipediaEditEvent> ctx)
         throws Exception

抛出:

Exception

cancel

public void cancel()