org.apache.pulsar.common.intercept.BrokerEntryMetadataUtils 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.common.intercept;
import java.lang.reflect.InvocationTargetException;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;
import org.apache.pulsar.common.util.ClassLoaderUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A tool class for loading BrokerEntryMetadataInterceptor classes.
*/
public class BrokerEntryMetadataUtils {
private static final Logger log = LoggerFactory.getLogger(BrokerEntryMetadataUtils.class);
public static Set loadBrokerEntryMetadataInterceptors(
Set interceptorNames, ClassLoader classLoader) {
Set interceptors = new HashSet<>();
if (interceptorNames != null && interceptorNames.size() > 0) {
for (String interceptorName : interceptorNames) {
try {
Class clz = (Class) ClassLoaderUtils
.loadClass(interceptorName, classLoader);
try {
interceptors.add(clz.getDeclaredConstructor().newInstance());
} catch (InstantiationException | IllegalAccessException
| InvocationTargetException | NoSuchMethodException e) {
log.error("Create new BrokerEntryMetadataInterceptor instance for {} failed.",
interceptorName, e);
throw new RuntimeException(e);
}
} catch (ClassNotFoundException e) {
log.error("Load BrokerEntryMetadataInterceptor class for {} failed.", interceptorName, e);
throw new RuntimeException(e);
}
}
}
return interceptors;
}
public static Set loadInterceptors(
Set interceptorNames, ClassLoader classLoader) {
Set interceptors = new LinkedHashSet<>();
if (interceptorNames != null && interceptorNames.size() > 0) {
for (String interceptorName : interceptorNames) {
try {
Class clz = (Class) ClassLoaderUtils
.loadClass(interceptorName, classLoader);
try {
interceptors.add(clz.getDeclaredConstructor().newInstance());
} catch (InstantiationException | IllegalAccessException
| InvocationTargetException | NoSuchMethodException e) {
log.error("Create new instance for {} failed. Exception is {}",
interceptorName, e);
throw new RuntimeException(e);
}
} catch (ClassNotFoundException e) {
log.error("Load class for {} failed. Exception is {}", interceptorName, e);
throw new RuntimeException(e);
}
}
}
return interceptors;
}
}