D-Net

package eu.dnetlib.msro.workflows.nodes.repobye;

import java.io.StringReader;

import java.io.StringWriter;

import javax.annotation.Resource;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

import org.dom4j.Document;

import org.dom4j.Node;

import org.dom4j.io.SAXReader;

import com.googlecode.sarasvati.Arc;

import com.googlecode.sarasvati.NodeToken;

import eu.dnetlib.enabling.is.lookup.rmi.ISLookUpService;

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

import eu.dnetlib.enabling.locators.UniqueServiceLocator;

import eu.dnetlib.msro.workflows.nodes.SimpleJobNode;

import eu.dnetlib.msro.workflows.util.WorkflowsConstants;

public class DeleteMetaWfJobNode extends SimpleJobNode {

	private String metaWfId;

	@Resource

	private UniqueServiceLocator serviceLocator;

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

	@Override

	protected String execute(final NodeToken token) throws Exception {

		final String profile = serviceLocator.getService(ISLookUpService.class).getResourceProfile(metaWfId);

		final Document doc = new SAXReader().read(new StringReader(profile));

		final String dsId = doc.valueOf("//DATAPROVIDER/@id");

		final String dsName = doc.valueOf("//DATAPROVIDER/text()");

		final String ifaceId = doc.valueOf("//DATAPROVIDER/@interface");

		final String destroyWfId = doc.valueOf("//CONFIGURATION/@destroyWorkflow");

		log.info("Removing a MetaWf of dataprovider: " + dsId);

		token.getEnv().setAttribute(WorkflowsConstants.DATAPROVIDER_ID, dsId);

		token.getEnv().setAttribute(WorkflowsConstants.DATAPROVIDER_NAME, dsName);

		token.getEnv().setAttribute(WorkflowsConstants.DATAPROVIDER_INTERFACE, ifaceId);

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

		for (Object o : doc.selectNodes("//WORKFLOW")) {

			final String wfId = ((Node) o).valueOf("@id");

			try {

				registry.deleteProfile(wfId);

				log.info(" - Deleted Workflow: " + wfId);

			} catch (Exception e) {

				log.error(" - (ERR) Error deleting profile " + wfId);

			}

		}

		registry.deleteProfile(metaWfId);

		log.info(" - Deleted MetaWorkflow: " + metaWfId);

		registry.deleteProfile(destroyWfId);

		log.info(" - Deleted destroy workflow: " + destroyWfId);

		verifyDatasource(dsId, ifaceId);

		return Arc.DEFAULT_ARC;

	}

	private void verifyDatasource(final String dsId, final String ifaceId) throws Exception {

		final StringWriter sw = new StringWriter();

		sw.append("for $x in collection('/db/DRIVER/MetaWorkflowDSResources/MetaWorkflowDSResourceType') where");

		sw.append("  $x//DATAPROVIDER/@id = '" + dsId + "' and ");

		sw.append("  $x//DATAPROVIDER/@interface = '" + ifaceId + "' and ");

		sw.append("  $x//RESOURCE_IDENTIFIER/@value != '" + metaWfId + "' ");

		sw.append("return $x//RESOURCE_IDENTIFIER/@value/string()");

		final boolean active = !serviceLocator.getService(ISLookUpService.class).quickSearchProfile(sw.toString()).isEmpty();

		log.info(" - Updating iface, active status: " + active);

		updateIfaceActivationStatus(dsId, ifaceId, active);

	}

	protected void updateIfaceActivationStatus(final String dsId, final String ifaceId, final boolean active) throws Exception {

		serviceLocator.getService(ISRegistryService.class).updateProfileNode(dsId, "//INTERFACE[@id = '" + ifaceId + "']/@active", "'" + active + "'");

	}

	public String getMetaWfId() {

		return metaWfId;

	}

	public void setMetaWfId(final String metaWfId) {

		this.metaWfId = metaWfId;

	}

}