org.nuiton.topia.persistence.TopiaApplicationContextFactory Maven / Gradle / Ivy
package org.nuiton.topia.persistence;
/*-
* #%L
* ToPIA Extension :: API
* %%
* Copyright (C) 2018 - 2022 Ultreia.io
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* .
* #L%
*/
import io.ultreia.java4all.util.ServiceLoaders;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Objects;
import java.util.TreeMap;
/**
* Created on 17/06/2022.
*
* @author Tony Chemit - [email protected]
* @since 2.0.5
*/
public abstract class TopiaApplicationContextFactory> {
private static final Logger log = LogManager.getLogger(TopiaApplicationContextFactory.class);
public static TopiaApplicationContextFactory INSTANCE;
final Map cache = new TreeMap<>();
public static TopiaApplicationContextFactory get() {
if (INSTANCE == null) {
INSTANCE = ServiceLoaders.loadUniqueService(TopiaApplicationContextFactory.class);
}
return INSTANCE;
}
public static > A createTopiaApplicationContext(TopiaConfigurationExtension topiaConfiguration) {
@SuppressWarnings("unchecked") TopiaApplicationContextFactory topiaApplicationContextFactory = (TopiaApplicationContextFactory) get();
return topiaApplicationContextFactory.createApplicationContext(topiaConfiguration, topiaApplicationContextFactory.cache);
}
public static > A getTopiaApplicationContext(String authenticationToken) {
@SuppressWarnings("unchecked") TopiaApplicationContextFactory topiaApplicationContextFactory = (TopiaApplicationContextFactory) get();
return topiaApplicationContextFactory.getTopiaApplicationContext0(authenticationToken);
}
public static void clearContexts(String authenticationToken) {
get().clearContexts0(authenticationToken);
}
public static void close() {
get().close0();
}
protected static void close(TopiaApplicationContext topiaApplicationContext) {
if (!topiaApplicationContext.isClosed()) {
try {
topiaApplicationContext.close();
} catch (Exception e) {
log.error(String.format("Could not close topiaApplicationContext: %s", topiaApplicationContext), e);
}
}
}
protected abstract A createApplicationContext(TopiaConfigurationExtension topiaConfiguration, Map cache);
public A getTopiaApplicationContext0(String authenticationToken) {
A result = cache.get(authenticationToken);
Objects.requireNonNull(result, "Did not find how to create A from: " + authenticationToken);
return result;
}
public void clearContexts0(String authenticationToken) {
A toRemove = cache.remove(authenticationToken);
if (toRemove == null) {
// nothing to clean
return;
}
log.info(String.format("Close remaining topia application context for: %s", authenticationToken));
close(toRemove);
log.info(String.format("Still using %d topia application context(s).", cache.size()));
}
public void close0() {
for (A topiaApplicationContext : new LinkedHashSet<>(cache.values())) {
close(topiaApplicationContext);
}
cache.clear();
}
}