spring Cache 源码
springboot Cache 代码
文件路径：/spring-boot-project/spring-boot-tools/spring-boot-buildpack-platform/src/main/java/org/springframework/boot/buildpack/platform/build/Cache.java
/*
* Copyright 2012-2021 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.springframework.boot.buildpack.platform.build;
import java.util.Objects;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;
/**
* Details of a cache for use by the CNB builder.
*
* @author Scott Frederick
* @since 2.6.0
*/
public class Cache {
/**
* The format of the cache.
*/
public enum Format {
/**
* A cache stored as a volume in the Docker daemon.
*/
VOLUME;
}
protected final Format format;
Cache(Format format) {
this.format = format;
}
/**
* Return the details of the cache if it is a volume cache.
* @return the cache, or {@code null} if it is not a volume cache
*/
public Volume getVolume() {
return (this.format.equals(Format.VOLUME)) ? (Volume) this : null;
}
/**
* Create a new {@code Cache} that uses a volume with the provided name.
* @param name the cache volume name
* @return a new cache instance
*/
public static Cache volume(String name) {
Assert.notNull(name, "Name must not be null");
return new Volume(name);
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
Cache other = (Cache) obj;
return Objects.equals(this.format, other.format);
}
@Override
public int hashCode() {
return ObjectUtils.nullSafeHashCode(this.format);
}
/**
* Details of a cache stored in a Docker volume.
*/
public static class Volume extends Cache {
private final String name;
Volume(String name) {
super(Format.VOLUME);
this.name = name;
}
public String getName() {
return this.name;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
if (!super.equals(obj)) {
return false;
}
Volume other = (Volume) obj;
return Objects.equals(this.name, other.name);
}
@Override
public int hashCode() {
int result = super.hashCode();
result = 31 * result + ObjectUtils.nullSafeHashCode(this.name);
return result;
}
}
}
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- 所属分类： 后端技术
- 本文标签： Java Spring Spring Boot
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