edu.scripps.fl.pipeline.PipelineUtils.java Source code

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Here is the source code for edu.scripps.fl.pipeline.PipelineUtils.java

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/*
 * Copyright 2010 The Scripps Research Institute
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package edu.scripps.fl.pipeline;

import java.net.URL;
import java.util.Map;

import org.apache.commons.pipeline.Pipeline;
import org.apache.commons.pipeline.PipelineCreationException;
import org.apache.commons.pipeline.ProcessingException;
import org.apache.commons.pipeline.StageDriver;
import org.apache.commons.pipeline.config.DigesterPipelineFactory;
import org.apache.commons.pipeline.driver.AbstractStageDriver;
import org.apache.commons.pipeline.driver.FaultTolerance;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class PipelineUtils {

    private static final Logger log = LoggerFactory.getLogger(PipelineUtils.class);

    public Pipeline createPipeline(URL url, Object feed) throws PipelineCreationException {
        DigesterPipelineFactory factory = new DigesterPipelineFactory(url);
        Pipeline pipeline = factory.createPipeline();
        for (StageDriver driver : pipeline.getStageDrivers())
            ((AbstractStageDriver) driver).setFaultTolerance(FaultTolerance.CHECKED);
        pipeline.getSourceFeeder().feed(feed);
        return pipeline;
    }

    public Pipeline createPipeline(URL url, Object feed, Map<String, Object> globals)
            throws PipelineCreationException {
        Pipeline pipeline = createPipeline(url, feed);
        for (Map.Entry<String, Object> entry : globals.entrySet())
            pipeline.setEnv(entry.getKey(), entry.getValue());
        return pipeline;
    }

    public void logErrors(Pipeline pipeline) {
        for (StageDriver driver : pipeline.getStageDrivers()) {
            for (ProcessingException pe : driver.getProcessingExceptions()) {
                log.error(String.format("%s\t%s", pe.getData(), pe.getCause()));
            }
        }
    }
}