PropertiesSavedCommand.java

/*
 *  * This file is part of the Hesperides distribution.
 *  * (https://github.com/voyages-sncf-technologies/hesperides)
 *  * Copyright (c) 2016 VSCT.
 *  *
 *  * Hesperides 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, version 3.
 *  *
 *  * Hesperides 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 <http://www.gnu.org/licenses/>.
 *
 */

package com.vsct.dt.hesperides.applications.event;

import com.vsct.dt.hesperides.applications.PlatformKey;
import com.vsct.dt.hesperides.applications.PlatformRegistryInterface;
import com.vsct.dt.hesperides.applications.PropertiesSavedEvent;
import com.vsct.dt.hesperides.applications.properties.PropertiesRegistryInterface;
import com.vsct.dt.hesperides.exception.runtime.MissingResourceException;
import com.vsct.dt.hesperides.storage.HesperidesCommand;
import com.vsct.dt.hesperides.templating.platform.PlatformData;
import com.vsct.dt.hesperides.templating.platform.PropertiesData;

import java.util.Optional;

/**
 * Created by emeric_martineau on 09/05/2016.
 */
public class PropertiesSavedCommand implements HesperidesCommand<PropertiesSavedEvent> {
    private final PlatformRegistryInterface platformRegistry;
    private final PropertiesRegistryInterface propertiesRegistry;
    private final PlatformKey platformKey;
    private final String path;
    private final PropertiesData properties;
    private final long platformVersionId;
    private final String comment;

    /**
     * The new platform to store in cache.
     */
    private PlatformData updatedPlatform;

    public PropertiesSavedCommand(final PlatformRegistryInterface platformRegistry,
                                  final PropertiesRegistryInterface propertiesRegistry, final PlatformKey platformKey,
                                  final String path, final PropertiesData properties, final long platformVersionId,
                                  final String comment) {
        this.platformRegistry = platformRegistry;
        this.propertiesRegistry = propertiesRegistry;
        this.platformKey = platformKey;
        this.path = path;
        this.properties = properties;
        this.platformVersionId = platformVersionId;
        this.comment = comment;
    }

    @Override
    public PropertiesSavedEvent apply() {
        final String applicationName = platformKey.getApplicationName();
        final String platformName = platformKey.getName();
        final long platformVID = platformVersionId;

        final Optional<PlatformData> optionalPlatform = platformRegistry.getPlatform(platformKey);

        if (optionalPlatform.isPresent()) {
            final PlatformData platform = optionalPlatform.get();
            platform.tryCompareVersionID(platformVID);
            //Properties are immutable, it is ok to store them directly

            updatedPlatform = PlatformData.withPlatformName(platform.getPlatformName())
                    .withApplicationName(platform.getApplicationName())
                    .withApplicationVersion(platform.getApplicationVersion())
                    .withModules(platform.getModules())
                    .withVersion(platform.getVersionID() + 1)
                    .setProduction(platform.isProduction())
                    .build();

            return new PropertiesSavedEvent(applicationName, platformName, path, properties, comment);
        } else {
            throw new MissingResourceException("Cannot create properties because platform " + applicationName + "/" + platformName + " does not exist");
        }
    }

    @Override
    public void complete() {
        final String applicationName = platformKey.getApplicationName();
        final String platformName = platformKey.getName();

        propertiesRegistry.createOrUpdateProperties(applicationName, platformName, path, properties);

        platformRegistry.createOrUpdatePlatform(updatedPlatform);
    }
}