org.apache.pulsar.packages.management.core.PackagesStorageProvider Maven / Gradle / Ivy
/**
* 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.pulsar.packages.management.core;
import static com.google.common.base.Preconditions.checkArgument;
import java.io.IOException;
/**
* The provider provides a generic method to get a storage provider.
*/
public interface PackagesStorageProvider {
/**
* Construct a provider from the provided class.
*
* @param providerClassName the provider class name
* @return an instance of package storage provider
* @throws IOException
*/
static PackagesStorageProvider newProvider(String providerClassName) throws IOException {
Class providerClass;
try {
providerClass = Class.forName(providerClassName);
Object obj = providerClass.newInstance();
checkArgument(obj instanceof PackagesStorageProvider,
"The package storage provider has to be an instance of " + PackagesStorageProvider.class.getName());
return (PackagesStorageProvider) obj;
} catch (Exception e) {
throw new IOException(e);
}
}
/**
* Get a storage with the configuration.
*
* @param config storage configuration
* @return
*/
PackagesStorage getStorage(PackagesStorageConfiguration config);
}