org.nuiton.topia.service.migration.TopiaMigrationServiceConfiguration Maven / Gradle / Ivy
package org.nuiton.topia.service.migration;
/*-
* #%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.Version;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.nuiton.topia.persistence.TopiaApplicationContext;
import org.nuiton.topia.persistence.TopiaException;
import org.nuiton.topia.persistence.TopiaMisconfigurationException;
import org.nuiton.topia.persistence.support.TopiaSqlDllSupport;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Iterator;
import java.util.Map;
import java.util.ServiceLoader;
/**
* Configuration of the {@link TopiaMigrationService} service.
*
* Created by tchemit on 05/05/2018.
*
* @author Tony Chemit - [email protected]
*/
public class TopiaMigrationServiceConfiguration {
private static final Logger log = LogManager.getLogger(TopiaMigrationServiceConfiguration.class);
/**
* User callback.
*/
protected final TopiaMigrationServiceAskUserToMigrate callback;
/**
* Topia application context
*/
protected final TopiaApplicationContext applicationContext;
/**
* Persistence model version (the version to migrate to).
*/
protected final Version modelVersion;
/**
* Migration classifier.
*/
protected final String classifier;
/**
* Temporary directory used to create migration scripts.
*/
protected final Path temporaryDirectory;
public static TopiaMigrationServiceConfiguration of(TopiaApplicationContext applicationContext, Map serviceConfiguration) {
String classifier = TopiaSqlDllSupport.getClassifier(applicationContext);
if (classifier != null) {
log.debug("Use Classifier - " + classifier);
}
TopiaMigrationServiceAskUserToMigrate askUserToMigrate = null;
Iterator serviceIterator = ServiceLoader.load(TopiaMigrationServiceAskUserToMigrate.class).iterator();
if (serviceIterator.hasNext()) {
askUserToMigrate = serviceIterator.next();
if (serviceIterator.hasNext()) {
throw new TopiaMisconfigurationException("More than one service registered for type: " + TopiaMigrationServiceAskUserToMigrate.class.getName(), applicationContext.getConfiguration());
}
}
if (askUserToMigrate != null) {
log.debug("Use callback - " + askUserToMigrate);
}
String path = serviceConfiguration.get("java.io.tmpdir");
if (path == null) {
path = System.getProperty("java.io.tmpdir");
}
Path temporaryDirectory = Paths.get(path);
try {
if (Files.notExists(temporaryDirectory)) {
Files.createDirectories(temporaryDirectory);
}
} catch (IOException e) {
throw new TopiaException("Could not create temporary directory: " + temporaryDirectory, e);
}
return new TopiaMigrationServiceConfiguration(applicationContext, askUserToMigrate, classifier, temporaryDirectory);
}
protected TopiaMigrationServiceConfiguration(TopiaApplicationContext applicationContext, TopiaMigrationServiceAskUserToMigrate callback, String classifier, Path temporaryDirectory) {
this.applicationContext = applicationContext;
this.callback = callback;
this.modelVersion = Version.valueOf(applicationContext.getModelVersion());
this.classifier = classifier;
this.temporaryDirectory = temporaryDirectory;
}
public TopiaMigrationServiceAskUserToMigrate getCallback() {
return callback;
}
public TopiaApplicationContext getApplicationContext() {
return applicationContext;
}
public Version getModelVersion() {
return modelVersion;
}
public String getClassifier() {
return classifier;
}
public Path getTemporaryDirectory() {
return temporaryDirectory;
}
}