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そもそもこの質問がダミーであることは知っていますが、関連するドキュメントが見つかりませんでした。Apache camel にリモート HBase のテーブルをスキャンさせる方法はどれですか?

Apache camel のドキュメントはあまり役に立ちません。hbase がローカルにインストールされている場合にのみ機能します。

事前にt​​hx！

編集：

@cexbrayat の例を試してみましたが、次の例外が発生しています。

8071 [Camel (camel-1) thread #1 - stream://in] ERROR org.apache.camel.processor.DefaultErrorHandler - Failed delivery for (MessageId: ID-1344429030688-0-1 on ExchangeId: ID-1344429030688-0-2). Exhausted after delivery attempt: 1 caught: java.lang.NullPointerException
java.lang.NullPointerException
    at org.apache.camel.component.hbase.HBaseProducer.process(HBaseProducer.java:105)
    at org.apache.camel.util.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:61)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
    at org.apache.camel.processor.SendProcessor$2.doInAsyncProducer(SendProcessor.java:120)
    at org.apache.camel.impl.ProducerCache.doInAsyncProducer(ProducerCache.java:292)
    at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:115)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
    at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:73)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
    at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:91)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
    at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:330)
    at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:220)
    at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:45)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
    at org.apache.camel.processor.interceptor.DefaultChannel.process(DefaultChannel.java:303)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:117)
    at org.apache.camel.processor.Pipeline.process(Pipeline.java:80)
    at org.apache.camel.processor.RouteContextProcessor.processNext(RouteContextProcessor.java:45)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
    at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:150)
    at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:117)
    at org.apache.camel.processor.RouteInflightRepositoryProcessor.processNext(RouteInflightRepositoryProcessor.java:48)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:73)
    at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:99)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:90)
    at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:73)
    at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:99)
    at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:86)
    at org.apache.camel.component.stream.StreamConsumer.processLine(StreamConsumer.java:198)
    at org.apache.camel.component.stream.StreamConsumer.readFromStream(StreamConsumer.java:159)
    at org.apache.camel.component.stream.StreamConsumer.run(StreamConsumer.java:100)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
    at java.lang.Thread.run(Thread.java:722)
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1 に答える 1

5

xml ファイルで hbase-site.xml として hbase を構成する必要があります。公式の hbaseドキュメントでその方法を見つけることができます。

その後、この構成ファイルを Camel で使用できるようになります。これを行うには、camel-hbase コンポーネントソースに例があります。

Java DSL を使用すると、ルートは次のようになります。

public class FournisseurRoute extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        from("direct:scan")
            .to("hbase:mytable?operation=CamelHBaseScan")
            .log("${body}");
    }
}
于 2012-08-08T07:17:20.420 に答える