78 lines
1.7 KiB
Java
78 lines
1.7 KiB
Java
package org.gcube.application.framework.core.cache;
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import java.util.HashMap;
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import org.gcube.common.core.scope.GCUBEScope;
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import org.gcube.common.core.utils.logging.GCUBELog;
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import org.gcube.informationsystem.cache.ISCache;
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import org.gcube.informationsystem.cache.ISCacheManager;
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/**
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* This class manages the running harvester threads.
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*
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* @author Valia Tsagkalidou (KNUA)
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*
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*/
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public class RIsManager {
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/**
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* Defines the manager's instance
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*/
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private static RIsManager instance = null;
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/**
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* keeps the ISCache per scope
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*/
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protected HashMap<GCUBEScope, ISCache> isCaches;
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/** Object logger. */
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protected final GCUBELog logger = new GCUBELog(this);
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/**
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* Initializes RIsManager
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*/
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private RIsManager() {
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isCaches = new HashMap<GCUBEScope, ISCache>();
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}
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/**
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* Retrieves the singleton
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* @return the only instance of RIsManager
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*/
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synchronized public static RIsManager getInstance() {
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if (instance == null)
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instance = new RIsManager();
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return instance;
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}
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/**
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* @param scope the GGUBEScope for which the RIs are requested
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* @return the ISCache for this specific scope
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*/
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public synchronized ISCache getISCache(GCUBEScope scope)
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{
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ISCache isInfo = isCaches.get(scope);
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if(isInfo == null)
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{
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// If the ISCache in not already created, then it creates a new instance and adds it to the HashMap
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try {
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ISCacheManager.addManager(scope);
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isInfo = ISCacheManager.getManager(scope).getCache();
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isCaches.put(scope, isInfo);
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try {
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Thread.sleep(5000);
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} catch (InterruptedException e1) {
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logger.error("", e1);
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}
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} catch (Exception e) {
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logger.error("", e);
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}
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}
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return isInfo;
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}
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}
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