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package eu.dnetlib.data.hadoop.action;
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import eu.dnetlib.data.hadoop.HadoopServiceCore;
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import eu.dnetlib.data.hadoop.config.ClusterName;
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import eu.dnetlib.data.hadoop.rmi.HadoopServiceException;
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import eu.dnetlib.enabling.tools.blackboard.BlackboardJob;
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import eu.dnetlib.enabling.tools.blackboard.BlackboardServerHandler;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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/**
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* Creates a directory on hdfs, if it does not exists.
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* <p/>
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* Params - cluster: cluster name, path: directory path to be created, forceDelete: forces the directory to be dropped and recreated.
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*
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* @author claudio
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*/
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public class CreateHdfsDirectoryAction extends AbstractHadoopAction {
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/**
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* logger.
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*/
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private static final Log log = LogFactory.getLog(CreateHdfsDirectoryAction.class); // NOPMD by marko on 11/24/08 5:02 PM
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/**
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* The hadoop service core.
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*/
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@Autowired
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private HadoopServiceCore hadoopServiceCore;
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@Override
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protected void executeAsync(final BlackboardServerHandler handler, final BlackboardJob job) throws HadoopServiceException {
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final ClusterName clusterName = ClusterName.valueOf(job.getParameters().get("cluster"));
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log.info("create directory request on cluster: " + clusterName.toString());
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final boolean forceDelete = isForceDelete(job);
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final String path = job.getParameters().get("path");
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hadoopServiceCore.createHdfsDir(clusterName, path, forceDelete);
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handler.done(job);
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}
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private boolean isForceDelete(final BlackboardJob job) {
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try {
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return Boolean.parseBoolean(job.getParameters().get("force"));
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} catch (IllegalArgumentException e) {
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return false;
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}
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}
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}
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