128 lines
4.1 KiB
Java
Executable File
128 lines
4.1 KiB
Java
Executable File
package org.gcube.informationsystem.collector.impl.xmlstorage.exist;
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import org.gcube.informationsystem.collector.impl.contexts.ICServiceContext;
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import org.gcube.informationsystem.collector.impl.persistence.AggregatorPersistentResource;
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import org.globus.wsrf.config.ContainerConfig;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.Collections;
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/**
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* This class groups the data globally scoped in an active RI
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*
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* @author manuele simi
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*
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*/
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public class State {
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/**
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* Connection to eXist used to store data
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*/
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public static XMLStorageManager storage_manager;
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/**
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* Connection to eXist used to query the database
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*/
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public static XMLStorageManager query_manager;
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/**
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* DIS-IC's JNDI resource name as declared in the JNDI file
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*/
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public static final String JNDIResourceName = "DISICConfiguration";
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/**
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* Prefix to prepend to any log message
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*/
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public static final String logPrefix = "";
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/**
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* Thread that periodically sweeps the database from expired resources
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*/
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public static Thread sweeperT;
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/**
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* List of recently deleted resources. It is used to avoid the storage of RPs of a deleted
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* resource
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*/
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public static List<AggregatorPersistentResource> deletedResources = Collections.synchronizedList(new ArrayList<AggregatorPersistentResource>());
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private static Log logger = LogFactory.getLog(State.class.getName());
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/**
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* Initializes the eXist DB connections using during the service life
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*
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* @param configuration
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* the RI configuration loaded from the JNDI resource
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* @throws Exception
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* if the intialization fails
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*/
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public static void initialize() throws Exception {
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logger.info("starting IC service initialization...");
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State.initializeStorageManager();
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State.initializeQueryManager();
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if (Boolean.valueOf((String) ICServiceContext.getContext().getProperty("deleteRPsOnStartup", true))) {
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// cleanup the RPs collection
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logger.info("deleting all RPs...");
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State.storage_manager.deleteAllProperties();
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} else {
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logger.info("all RPs previously stored are keept in the storage");
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}
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// start the sweeper to periodically cleanup the storage and some data structures
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Sweeper sweeper = new Sweeper(Long.valueOf((String) ICServiceContext.getContext().getProperty("sweeperIntervalinMillis", true)), Long.valueOf((String) ICServiceContext.getContext()
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.getProperty("resourceExpirationTimeInMillis", true)));
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State.sweeperT = new Thread(sweeper);
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State.sweeperT.start();
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logger.info("IC service initialization completed");
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}
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private static void initializeStorageManager() throws Exception {
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// open the connection used to store resources
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State.storage_manager = new XMLStorageManager();
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storage_manager.initialize();
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}
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private static void initializeQueryManager() throws Exception {
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// open the connection used to query stored resources
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State.query_manager = new XMLStorageManager();
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query_manager.initialize();
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}
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/**
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*
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* @return the container base dir
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*/
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public static String getBaseDirectory() {
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return ContainerConfig.getBaseDirectory();
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}
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/**
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* Releases all the State resources
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*
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* @throws Exception if the shutdown fails
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*/
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public static void dispose() throws Exception {
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logger.info("Disposing IC service's resources...");
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State.storage_manager.shutdown();
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State.query_manager.shutdown();
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}
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/**
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* Prints the enviromnet variables
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*/
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public void printEnv() {
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java.util.Properties p = System.getProperties();
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Enumeration<Object> keys = p.keys();
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while (keys.hasMoreElements()) {
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logger.debug(keys.nextElement());
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}
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logger.debug("Exist home: " + System.getProperty("exist.home"));
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logger.debug("Class path: " + System.getProperty("java.class.path"));
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}
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}
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