122 lines
3.7 KiB
Java
122 lines
3.7 KiB
Java
/**
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*
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*/
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package org.gcube.accounting.persistence;
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import java.io.File;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.ServiceLoader;
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import org.gcube.accounting.aggregation.scheduler.AggregationScheduler;
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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.common.scope.impl.ScopeBean.Type;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* @author Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/
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*
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*/
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public abstract class AccountingPersistenceFactory {
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private static final Logger logger = LoggerFactory.getLogger(AccountingPersistenceFactory.class);
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public final static String HOME_SYSTEM_PROPERTY = "user.home";
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private static final String ACCOUTING_FALLBACK_FILENAME = "accountingFallback.log";
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private static String fallbackLocation;
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private static Map<String, AccountingPersistence> persistences;
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static {
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persistences = new HashMap<String, AccountingPersistence>();
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}
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private static File file(File file) throws IllegalArgumentException {
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if(!file.isDirectory()){
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file = file.getParentFile();
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}
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//create folder structure if not exist
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if (!file.exists())
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file.mkdirs();
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return file;
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}
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public synchronized static void setFallbackLocation(String path){
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if(fallbackLocation == null){
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if(path==null){
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path = System.getProperty(HOME_SYSTEM_PROPERTY);
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}
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file(new File(path));
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fallbackLocation = path;
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}
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}
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public static AccountingPersistence getPersistence() {
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String scope = ScopeProvider.instance.get();
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if(scope==null){
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logger.error("No Scope available. FallbackPersistence will be used");
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File fallbackFile = new File(fallbackLocation, ACCOUTING_FALLBACK_FILENAME);
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return new FallbackPersistence(fallbackFile);
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}
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AccountingPersistence persistence = persistences.get(scope);
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if(persistence==null){
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ScopeBean bean = new ScopeBean(scope);
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if(bean.is(Type.VRE)){
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bean = bean.enclosingScope();
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}
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String name = bean.name();
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File fallbackFile = new File(fallbackLocation, String.format("%s.%s", name, ACCOUTING_FALLBACK_FILENAME));
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FallbackPersistence fallbackPersistence = new FallbackPersistence(fallbackFile);
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try {
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ServiceLoader<AccountingPersistence> serviceLoader = ServiceLoader.load(AccountingPersistence.class);
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for (AccountingPersistence foundPersistence : serviceLoader) {
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if(foundPersistence.getClass().isInstance(FallbackPersistence.class)){
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continue;
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}
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try {
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String foundPersistenceClassName = foundPersistence.getClass().getSimpleName();
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logger.debug("Testing {}", foundPersistenceClassName);
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AccountingPersistenceConfiguration configuration = new AccountingPersistenceConfiguration(foundPersistenceClassName);
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foundPersistence.prepareConnection(configuration);
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/*
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* Uncomment the following line of code if you want to try
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* to create a test UsageRecord before setting the
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* foundPersistence as default
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*
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* foundPersistence.accountWithFallback(TestUsageRecord.createTestServiceUsageRecord());
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*/
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persistence = foundPersistence;
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break;
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} catch (Exception e) {
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logger.debug(String.format("%s not initialized correctly. It will not be used", foundPersistence.getClass().getSimpleName()));
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}
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}
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if(persistence==null){
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persistence = fallbackPersistence;
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}
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} catch(Exception e){
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logger.error("Unable to instance a Persistence Implementation. Using fallback as default",
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e.getCause());
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persistence = fallbackPersistence;
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}
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persistence.setAggregationScheduler(AggregationScheduler.getInstance());
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persistence.setFallback(fallbackPersistence);
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persistences.put(scope, persistence);
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}
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return persistence;
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}
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}
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