eventmesh-spi/src/main/java/org/apache/eventmesh/spi/EventMeshExtensionFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.eventmesh.spi;

import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;

public enum EventMeshExtensionFactory {
    ;

    public static <T> T getExtension(Class<T> extensionType, String extensionName) {
        if (extensionType == null) {
            throw new ExtensionException("extensionType is null");
        }
        if (StringUtils.isEmpty(extensionName)) {
            throw new ExtensionException("extensionName is null");
        }
        if (!extensionType.isInterface() || !extensionType.isAnnotationPresent(EventMeshSPI.class)) {
            throw new ExtensionException(String.format("extensionType:%s is invalided", extensionType));
        }
        return EventMeshExtensionLoader.getExtension(extensionType, extensionName);
    }
}