串进来，拉出去？

Question

我是ClearTK和UIMA的新手。到目前为止，我还没有找到任何关于如何创建不涉及文件的管道的例子。

我试图使用cleartk和UIMA处理存储在Java变量中的一个小文本，并获得一个XML返回( ClearTK TimeML注释器的结果)。

我能够提供一个字符串作为输入(请参阅代码摘录)，但代码远非优雅(需要对CAS执行set和空URI )。而且，输出被保存到一个文件中，但是我希望得到一个字符串(将输出保存到一个文件中，然后将该文件读入内存是没有意义的)。

import org.apache.uima.analysis_component.JCasAnnotator_ImplBase;
import org.apache.uima.analysis_engine.AnalysisEngineProcessException;
import org.apache.uima.fit.factory.AnalysisEngineFactory;
import org.apache.uima.fit.pipeline.SimplePipeline;
import org.apache.uima.jcas.JCas;
import org.cleartk.corpus.timeml.TempEval2007Writer;
import org.cleartk.opennlp.tools.PosTaggerAnnotator;
import org.cleartk.snowball.DefaultSnowballStemmer;
import org.cleartk.timeml.event.*;
import org.cleartk.timeml.time.TimeTypeAnnotator;
import org.cleartk.timeml.tlink.TemporalLinkEventToDocumentCreationTimeAnnotator;
import org.cleartk.timeml.tlink.TemporalLinkEventToSameSentenceTimeAnnotator;
import org.cleartk.timeml.tlink.TemporalLinkEventToSubordinatedEventAnnotator;
import org.cleartk.timeml.type.DocumentCreationTime;
import org.cleartk.token.tokenizer.TokenAnnotator;
import org.cleartk.util.cr.FilesCollectionReader;

...

String documentText = "First make sure that you are using eggs that are several days old...";
JCas sourceCas = createJCas();

sourceCas.setDocumentText(documentText);
ViewUriUtil.setURI(sourceCas, new URI(""));

SimplePipeline.runPipeline(
        sourceCas,
        org.cleartk.opennlp.tools.SentenceAnnotator.getDescription(),
        TokenAnnotator.getDescription(),
        PosTaggerAnnotator.getDescription(),
        DefaultSnowballStemmer.getDescription("English"),
        org.cleartk.opennlp.tools.ParserAnnotator.getDescription(),
        org.cleartk.timeml.time.TimeAnnotator.FACTORY.getAnnotatorDescription(),
        TimeTypeAnnotator.FACTORY.getAnnotatorDescription(),
        EventAnnotator.FACTORY.getAnnotatorDescription(),
        EventTenseAnnotator.FACTORY.getAnnotatorDescription(),
        EventAspectAnnotator.FACTORY.getAnnotatorDescription(),
        EventClassAnnotator.FACTORY.getAnnotatorDescription(),
        EventPolarityAnnotator.FACTORY.getAnnotatorDescription(),
        EventModalityAnnotator.FACTORY.getAnnotatorDescription(),
        AnalysisEngineFactory.createEngineDescription(AddEmptyDCT.class),
        TemporalLinkEventToDocumentCreationTimeAnnotator.FACTORY.getAnnotatorDescription(),
        TemporalLinkEventToSameSentenceTimeAnnotator.FACTORY.getAnnotatorDescription(),
        TemporalLinkEventToSubordinatedEventAnnotator.FACTORY.getAnnotatorDescription(),
        TempEval2007Writer.getDescription("file:///tmp/out.tml"));

建议如何让管道以字符串作为输入，并生成另一个字符串作为执行结果？

Answer 1

像以前一样使用SimplePipeline运行引擎，然后从sourceCas中检索您感兴趣的注释，如下所示：

Collection<MyAnnotation> myAnnotation = JCasUtil.select(sourceCas, MyAnnotation.class);
String myproperty = myAnnotation.getMyproperty();