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package eu.dnetlib.data.hadoop;
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import java.util.List;
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import javax.annotation.Resource;
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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 com.google.common.collect.Iterables;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpException;
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import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;
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import eu.dnetlib.enabling.is.registry.rmi.ISRegistryException;
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import eu.dnetlib.enabling.is.registry.rmi.ISRegistryService;
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import eu.dnetlib.enabling.locators.UniqueServiceLocator;
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import eu.dnetlib.miscutils.datetime.DateUtils;
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public class ISClient {
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private static final Log log = LogFactory.getLog(ISClient.class); // NOPMD by marko on 11/24/08 5:02 PM
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@Resource
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private UniqueServiceLocator serviceLocator;
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public String getJobProfile(final String jobName) throws ISLookUpException {
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return serviceLocator.getService(ISLookUpService.class).getResourceProfileByQuery(
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"/RESOURCE_PROFILE[.//RESOURCE_TYPE/@value = 'HadoopJobConfigurationDSResourceType' and .//HADOOP_JOB/@name='" + jobName + "']");
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}
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public String queryForServiceProperty(final String key) throws ISLookUpException {
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return getServiceConfigValue("for $x in /RESOURCE_PROFILE[.//RESOURCE_TYPE/@value='HadoopServiceResourceType'] return $x//SERVICE_PROPERTIES/PROPERTY[./@ key='"
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+ key + "']/@value/string()");
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}
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public void updateCountElement(final String jobName, final String element, final String delta) {
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final String xquery =
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"let $x := //RESOURCE_PROFILE[" + ".//RESOURCE_TYPE/@value='HadoopJobConfigurationDSResourceType' and .//HADOOP_JOB/@name='" + jobName
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+ "'], $tot := $x//STATUS/" + element + "/@value/number() " + delta + " return update replace $x//STATUS/" + element + " with <"
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+ element + " value='{$tot}' />";
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executeXUpdate(xquery);
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}
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public void updateDate(final String jobName) {
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log.info("increment last submission date for job: " + jobName);
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executeXUpdate("for $x in collection('')/RESOURCE_PROFILE["
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+ ".//RESOURCE_TYPE/@value='HadoopJobConfigurationDSResourceType' and .//HADOOP_JOB/@name='"
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+ jobName + "'] " + " return update value $x//LAST_SUBMISSION_DATE/@value with '" + DateUtils.now_ISO8601() + "' ");
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}
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private String getServiceConfigValue(final String xquery) throws ISLookUpException {
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log.debug("quering for service property: " + xquery);
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final List<String> urls = serviceLocator.getService(ISLookUpService.class).quickSearchProfile(xquery);
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if ((urls == null) || (urls.size() != 1))
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throw new IllegalStateException("unable to find unique service property, xquery: " + xquery);
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return Iterables.getOnlyElement(urls);
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}
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private boolean executeXUpdate(final String xupdate) {
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try {
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log.debug("running xupdate: " + xupdate);
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return serviceLocator.getService(ISRegistryService.class).executeXUpdate(xupdate);
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} catch (final ISRegistryException e) {
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log.error("unable to run xupdate: " + xupdate, e);
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return false;
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}
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}
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}
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