spring LogFactoryService 源码
spring LogFactoryService 代码
文件路径：/spring-jcl/src/main/java/org/apache/commons/logging/LogFactoryService.java
/*
* Copyright 2002-2018 the original author or authors.
*
* 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
*
* https://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.commons.logging;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* A minimal subclass of the standard Apache Commons Logging's {@code LogFactory} class,
* overriding the abstract {@code getInstance} lookup methods. This is just applied in
* case of the standard {@code commons-logging} jar accidentally ending up on the classpath,
* with the standard {@code LogFactory} class performing its META-INF service discovery.
* This implementation simply delegates to Spring's common {@link Log} factory methods.
*
* @author Juergen Hoeller
* @since 5.1
* @deprecated since it is only meant to be used in the above-mentioned fallback scenario
*/
@Deprecated
public class LogFactoryService extends LogFactory {
private final Map<String, Object> attributes = new ConcurrentHashMap<>();
@Override
public Log getInstance(Class<?> clazz) {
return getInstance(clazz.getName());
}
@Override
public Log getInstance(String name) {
return LogAdapter.createLog(name);
}
// Just in case some code happens to call uncommon Commons Logging methods...
public void setAttribute(String name, Object value) {
if (value != null) {
this.attributes.put(name, value);
}
else {
this.attributes.remove(name);
}
}
public void removeAttribute(String name) {
this.attributes.remove(name);
}
public Object getAttribute(String name) {
return this.attributes.get(name);
}
public String[] getAttributeNames() {
return this.attributes.keySet().toArray(new String[0]);
}
public void release() {
}
}
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