Examples of org.apache.hadoop.streaming.io.IdentifierResolver.resolve()

Class org.apache.hadoop.streaming.io.IdentifierResolver

Examples of org.apache.hadoop.streaming.io.IdentifierResolver.resolve()

org.apache.hadoop.streaming.io.IdentifierResolver.resolve()
Resolves a given identifier. This method has to be called before calling any of the getters.

    Class<? extends IdentifierResolver> idResolverClass = 
      jobConf_.getClass("stream.io.identifier.resolver.class",
        IdentifierResolver.class, IdentifierResolver.class);
    IdentifierResolver idResolver = ReflectionUtils.newInstance(idResolverClass, jobConf_);
    
    idResolver.resolve(jobConf_.get("stream.map.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);
    
    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",

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    idResolver.resolve(jobConf_.get("stream.map.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);
    
    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);
    
    idResolver.resolve(jobConf_.get("stream.map.output", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.output.reader.class",

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    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);
    
    idResolver.resolve(jobConf_.get("stream.map.output", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.output.reader.class",
      idResolver.getOutputReaderClass(), OutputReader.class);
    jobConf_.setMapOutputKeyClass(idResolver.getOutputKeyClass());
    jobConf_.setMapOutputValueClass(idResolver.getOutputValueClass());

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    jobConf_.setClass("stream.map.output.reader.class",
      idResolver.getOutputReaderClass(), OutputReader.class);
    jobConf_.setMapOutputKeyClass(idResolver.getOutputKeyClass());
    jobConf_.setMapOutputValueClass(idResolver.getOutputValueClass());
    
    idResolver.resolve(jobConf_.get("stream.reduce.output", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.output.reader.class",
      idResolver.getOutputReaderClass(), OutputReader.class);
    jobConf_.setOutputKeyClass(idResolver.getOutputKeyClass());
    jobConf_.setOutputValueClass(idResolver.getOutputValueClass());

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    Class<? extends IdentifierResolver> idResolverClass =
      jobConf_.getClass("stream.io.identifier.resolver.class",
        IdentifierResolver.class, IdentifierResolver.class);
    IdentifierResolver idResolver = ReflectionUtils.newInstance(idResolverClass, jobConf_);


    idResolver.resolve(jobConf_.get("stream.map.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);


    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",

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    idResolver.resolve(jobConf_.get("stream.map.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);


    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);


    jobConf_.set("stream.addenvironment", addTaskEnvironment_);

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          }
        }
      }
    }


    idResolver.resolve(jobConf_.get("stream.map.output",
        IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.output.reader.class",
      idResolver.getOutputReaderClass(), OutputReader.class);
    if (isMapperACommand) {
      // if mapper is a command, then map output key/value classes come from the

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        jobConf_.setOutputKeyClass(idResolver.getOutputKeyClass());
        jobConf_.setOutputValueClass(idResolver.getOutputValueClass());
      }
    }


    idResolver.resolve(jobConf_.get("stream.reduce.output",
        IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.output.reader.class",
      idResolver.getOutputReaderClass(), OutputReader.class);
    if (isReducerACommand) {
      // if reducer is a command, then output key/value classes come from the

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    Class<? extends IdentifierResolver> idResolverClass =
      jobConf_.getClass("stream.io.identifier.resolver.class",
        IdentifierResolver.class, IdentifierResolver.class);
    IdentifierResolver idResolver = ReflectionUtils.newInstance(idResolverClass, jobConf_);


    idResolver.resolve(jobConf_.get("stream.map.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);


    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",

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    idResolver.resolve(jobConf_.get("stream.map.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.map.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);


    idResolver.resolve(jobConf_.get("stream.reduce.input", IdentifierResolver.TEXT_ID));
    jobConf_.setClass("stream.reduce.input.writer.class",
      idResolver.getInputWriterClass(), InputWriter.class);


    jobConf_.set("stream.addenvironment", addTaskEnvironment_);

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