io.seata.config.ConfigurationFactory Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of seata-config-core Show documentation

config-core for Seata built with Maven

There is a newer version: 2.0.0

/*
 *  Copyright 1999-2018 Alibaba Group Holding Ltd.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package io.seata.config;

import io.seata.common.exception.NotSupportYetException;
import io.seata.common.loader.EnhancedServiceLoader;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Objects;

/**
 * The type Configuration factory.
 *
 * @author jimin.jm @alibaba-inc.com
 * @date 2018 /12/24
 */
public final class ConfigurationFactory {
    private static final Logger LOGGER = LoggerFactory.getLogger(ConfigurationFactory.class);
    private static final String REGISTRY_CONF = "registry.conf";
    /**
     * The constant FILE_INSTANCE.
     */
    public static final Configuration FILE_INSTANCE = new FileConfiguration(REGISTRY_CONF);
    private static final String NAME_KEY = "name";
    private static final String FILE_TYPE = "file";

    /**
     * Gets instance.
     *
     * @return the instance
     */
    public static Configuration getInstance() {
        ConfigType configType = null;
        String configTypeName = null;
        try {
            configTypeName = FILE_INSTANCE.getConfig(ConfigurationKeys.FILE_ROOT_CONFIG + ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR
                + ConfigurationKeys.FILE_ROOT_TYPE);
            configType = ConfigType.getType(configTypeName);
        } catch (Exception exx) {
            throw new NotSupportYetException("not support register type: " + configTypeName);
        }
        if (ConfigType.File == configType) {
            String pathDataId = ConfigurationKeys.FILE_ROOT_CONFIG + ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR
                + FILE_TYPE + ConfigurationKeys.FILE_CONFIG_SPLIT_CHAR
                + NAME_KEY;
            String name = FILE_INSTANCE.getConfig(pathDataId);
            return new FileConfiguration(name);
        } else {
            return EnhancedServiceLoader.load(ConfigurationProvider.class, Objects.requireNonNull(configType).name()).provide();
        }
    }
}