174 lines
6.3 KiB
Java
174 lines
6.3 KiB
Java
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/****************************************************************************
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* This software is part of the gCube Project.
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* Site: http://www.gcube-system.org/
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****************************************************************************
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* The gCube/gCore software is licensed as Free Open Source software
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* conveying to the EUPL (http://ec.europa.eu/idabc/eupl).
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* The software and documentation is provided by its authors/distributors
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* "as is" and no expressed or
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* implied warranty is given for its use, quality or fitness for a
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* particular case.
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****************************************************************************
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* Filename: Sweeper.java
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****************************************************************************
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* @author <a href="mailto:daniele.strollo@isti.cnr.it">Daniele Strollo</a>
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***************************************************************************/
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package org.gcube.resourcemanagement.support.server.sweeper;
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import static org.gcube.resources.discovery.icclient.ICFactory.client;
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import java.io.StringReader;
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import java.util.ArrayList;
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import java.util.List;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import org.gcube.common.resources.gcore.HostingNode;
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import org.gcube.common.resources.gcore.utils.XPathHelper;
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import org.gcube.common.scope.api.ScopeProvider;
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import org.gcube.common.scope.impl.ScopeBean;
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import org.gcube.resourcemanagement.support.server.gcube.queries.QueryLoader;
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import org.gcube.resourcemanagement.support.server.gcube.queries.QueryLocation;
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import org.gcube.resourcemanagement.support.server.managers.resources.GHNManager;
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import org.gcube.resourcemanagement.support.server.managers.resources.RunningInstanceManager;
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import org.gcube.resources.discovery.client.api.DiscoveryClient;
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import org.gcube.resources.discovery.client.queries.impl.QueryTemplate;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.w3c.dom.Node;
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import org.xml.sax.InputSource;
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import com.extjs.gxt.ui.client.data.ModelData;
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/**
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* @author Massimiliano Assante (ISTI-CNR)
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*
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*/
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public class Sweeper {
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//TODO: Make it configurable from a property file
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public static String LIVE_GHN_MAX_MINUTES = "40";
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private static final Logger _log = LoggerFactory.getLogger(Sweeper.class);
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protected ArrayList<String> applyQuery(ScopeBean queryScope, QueryLocation queryPath, QueryLocation returnPath, QueryParameter... params) throws Exception {
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//set the scope
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String currScope = ScopeProvider.instance.get();
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ScopeProvider.instance.set(queryScope.toString());
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QueryTemplate isQuery = new QueryTemplate(QueryLoader.getQuery(queryPath));
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DiscoveryClient<String> client = client();
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if (params != null && params.length > 0) {
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for (int i = 0; i < params.length; i++) {
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isQuery.addParameter(params[i].name, params[i].value);
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}
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}
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isQuery.addParameter("RESOURCE", QueryLoader.getQuery(returnPath));
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List<String> results = client.submit(isQuery);
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ArrayList<String> retval = new ArrayList<String>();
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for (String elem : results) {
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DocumentBuilder docBuilder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
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Node node = docBuilder.parse(new InputSource(new StringReader(elem))).getDocumentElement();
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XPathHelper helper = new XPathHelper(node);
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// Removes the resources with no ID or empty
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try {
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if (helper.evaluate("//ID").get(0) != null && helper.evaluate("//ID").get(0).trim().length() > 0) {
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retval.add(elem);
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System.out.println(elem);
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} else {
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_log.debug("*** Found an invalid element with no ID");
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}
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} catch (Exception e) {
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_log.debug("[getResourcesByType] found a resource with empty ID");
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}
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}
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ScopeProvider.instance.set(currScope);
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return retval;
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}
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/**
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* this method used to read the MAXWAIT param from the resourcemanagement.properties files, currently it reads it from the static var defined on top of this class
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* TODO: Make it configurable again from a property file
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* @param queryScope
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* @return the expired ghn list
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*/
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public ArrayList<String> getExpiredGHNs(final ScopeBean queryScope) {
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try {
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return applyQuery(
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queryScope,
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QueryLocation.SWEEPER_EXPIRED_GHN, QueryLocation.RETURN_SWEEPER_EXPIRED_GHN,
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new QueryParameter("MAXWAIT", LIVE_GHN_MAX_MINUTES));
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} catch (Exception e) {
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_log.error(e.getMessage());
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return null;
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}
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}
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public ArrayList<String> getDeadGHNs(ScopeBean queryScope) {
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try {
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return applyQuery(
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queryScope,
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QueryLocation.SWEEPER_DEAD_GHN, QueryLocation.RETURN_SWEEPER_DEAD_GHN);
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} catch (Exception e) {
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_log.error(e.getMessage());
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return null;
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}
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}
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public ArrayList<String> getOrphanRI(ScopeBean queryScope) {
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try {
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return applyQuery(
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queryScope,
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QueryLocation.SWEEPER_ORPHAN_RI, QueryLocation.RETURN_SWEEPER_ORPHAN_RI);
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} catch (Exception e) {
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_log.error(e.getMessage());
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return null;
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}
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}
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@SuppressWarnings("deprecation")
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public Boolean applySweep(ScopeBean queryScope, List<ModelData> elems) {
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//set the scope
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String currScope = ScopeProvider.instance.get();
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ScopeProvider.instance.set(queryScope.toString());
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for (ModelData entry : elems) {
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try {
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System.out.println("Action->"+((Object) entry.get("Actions")).toString());
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SweeperActions action = SweeperActions.valueOf(((Object) entry.get("Actions")).toString());
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String resID = ((Object) entry.get("ID")).toString();
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_log.info("Cleaning up " + resID + " " + action);
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switch(action) {
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case APPLY_GHN_DELETE:
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GHNManager manager = new GHNManager(resID);
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manager.forceDelete(queryScope);
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break;
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case APPLY_GHN_MOVE_TO_UNREACHABLE:
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GHNManager ghnManager = new GHNManager(resID);
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HostingNode res = (HostingNode) ghnManager.getResource(queryScope);
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_log.trace("*** Setting HostingNode " + resID + " status to unreachable");
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res.profile().description().status("unreachable");
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HostingNode hn = ghnManager.getRegistryPublisher().update(res);
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_log.trace("*** getRegistryPublisher returned " + hn.toString());
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break;
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case APPLY_RI_DELETE:
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RunningInstanceManager riManager = new RunningInstanceManager(resID);
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_log.trace("*** The running instance " + resID + " will be deleted");
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riManager.forceDelete(queryScope);
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break;
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default:
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}
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} catch (Exception e) {
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e.printStackTrace();
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return false;
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}
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}
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ScopeProvider.instance.set(currScope);
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return true;
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}
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}
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