D-Net

package eu.dnetlib.actionmanager.blackboard;

import java.util.Date;

import com.google.common.collect.Iterables;

import eu.dnetlib.actionmanager.is.ISClient;

import eu.dnetlib.actionmanager.set.ActionManagerSet;

import eu.dnetlib.actionmanager.set.RawSet;

import eu.dnetlib.data.hadoop.config.ClusterName;

import eu.dnetlib.data.hadoop.rmi.HadoopService;

import eu.dnetlib.enabling.is.registry.rmi.ISRegistryService;

import eu.dnetlib.enabling.locators.UniqueServiceLocator;

import eu.dnetlib.enabling.tools.blackboard.BlackboardJob;

import eu.dnetlib.enabling.tools.blackboard.BlackboardServerAction;

import eu.dnetlib.enabling.tools.blackboard.BlackboardServerHandler;

import eu.dnetlib.miscutils.datetime.DateUtils;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.springframework.beans.factory.annotation.Autowired;

public class GarbageActionManagerActionFromHDFS extends AbstractActionManagerAction implements BlackboardServerAction<ActionManagerActions> {

	private static final Log log = LogFactory.getLog(GarbageActionManagerActionFromHDFS.class);

	private final static String UPDATE_ACTION_PROFILE = "for $x in "

			+ "/RESOURCE_PROFILE[.//RESOURCE_TYPE/@value = 'ActionManagerSetDSResourceType' and .//SET/@id = '%s'] "

			+ "return update delete $x//RAW_SETS/EXPIRED[@id = '%s']";

	@Autowired

	private UniqueServiceLocator serviceLocator;

	@Autowired

	private ISClient isClient;

	@Override

	public void execute(final BlackboardServerHandler handler, final BlackboardJob job) {

		try {

			final String basePath = isClient.getBasePathHDFS();

			final Integer garbageRetain = Integer.valueOf(isClient.getGarbageRetainThreshold());

			final Long dateLimit = DateUtils.now() - Long.valueOf(isClient.getGarbageTimeMargin());

			final HadoopService hadoopService = serviceLocator.getService(HadoopService.class);

			final ISRegistryService isRegistry = serviceLocator.getService(ISRegistryService.class);

			for (ActionManagerSet set : isClient.listValidSets()) {

				for (RawSet expired : Iterables.limit(set.getExpired(), garbageRetain)) {

					final Date d = org.apache.commons.lang.time.DateUtils.parseDate(expired.getLastUpdate(), ActionManagerSet.DATE_PATTERNS);

					if (d.getTime() < dateLimit) {

						log.info(String.format("removing raw action set %s/%s", set.getId(), expired.getId()));

						hadoopService.deleteHdfsPath(ClusterName.DM.toString(), basePath + "/" + set.getDirectory() + "/" + expired.getId());

						final String xUpdate = String.format(UPDATE_ACTION_PROFILE, set.getId(), expired.getId());

						log.info(String.format("updating ActionSet profile: %s", xUpdate));

						isRegistry.executeXUpdate(xUpdate);

					}

				}

			}

			handler.done(job);

		} catch (Throwable e) {

			handler.failed(job, e);

		}

	}

}