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/*
* Copyright © 2016-2017 European Support Limited
*
* 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 org.openecomp.core.factory.api;
import org.apache.commons.lang3.StringUtils;
import org.openecomp.core.factory.FactoryConfig;
import org.openecomp.core.factory.impl.AbstractFactoryBase;
import org.openecomp.core.utilities.CommonMethods;
import org.openecomp.sdc.common.errors.CoreException;
import org.openecomp.sdc.common.errors.ErrorCategory;
import org.openecomp.sdc.common.errors.ErrorCode;
import java.util.Map;
public abstract class AbstractComponentFactory<I> extends AbstractFactory<I> {
static {
Registry registry = new RegistryImpl();
InitializationHelper.registerFactoryMapping(registry);
}
@FunctionalInterface
interface Registry {
void register(String factory, String impl);
}
private static class RegistryImpl implements Registry {
@Override
public void register(String factory, String impl) {
AbstractFactoryBase.registerFactory(factory, impl);
}
}
static class InitializationHelper {
private static boolean isRegistered = false;
private InitializationHelper() {
}
static synchronized void registerFactoryMapping(Registry registry) {
if (!isRegistered) {
registerFactoryMappingImpl(registry);
isRegistered = true;
}
}
private static void registerFactoryMappingImpl(Registry registry) {
Map<String, String> factoryMap = FactoryConfig.getFactoriesMap();
for (Map.Entry<String, String> entry : factoryMap.entrySet()) {
String abstractClassName = entry.getKey();
String concreteTypeName = entry.getValue();
if (StringUtils.isEmpty(concreteTypeName)) {
throw new CoreException(
new ErrorCode.ErrorCodeBuilder().withId("E0003")
.withMessage("Missing configuration value:" + concreteTypeName + ".")
.withCategory(ErrorCategory.SYSTEM).build());
}
registry.register(abstractClassName, concreteTypeName);
}
}
}
}
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