spring JarUri 源码
springboot JarUri 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/origin/JarUri.java
/*
* Copyright 2012-2020 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.origin;
import java.net.URI;
/**
* Simple class that understands Jar URLs can can provide short descriptions.
*
* @author Phillip Webb
*/
final class JarUri {
private static final String JAR_SCHEME = "jar:";
private static final String JAR_EXTENSION = ".jar";
private final String uri;
private final String description;
private JarUri(String uri) {
this.uri = uri;
this.description = extractDescription(uri);
}
private String extractDescription(String uri) {
uri = uri.substring(JAR_SCHEME.length());
int firstDotJar = uri.indexOf(JAR_EXTENSION);
String firstJar = getFilename(uri.substring(0, firstDotJar + JAR_EXTENSION.length()));
uri = uri.substring(firstDotJar + JAR_EXTENSION.length());
int lastDotJar = uri.lastIndexOf(JAR_EXTENSION);
if (lastDotJar == -1) {
return firstJar;
}
return firstJar + uri.substring(0, lastDotJar + JAR_EXTENSION.length());
}
private String getFilename(String string) {
int lastSlash = string.lastIndexOf('/');
return (lastSlash == -1) ? string : string.substring(lastSlash + 1);
}
String getDescription() {
return this.description;
}
String getDescription(String existing) {
return existing + " from " + this.description;
}
@Override
public String toString() {
return this.uri;
}
static JarUri from(URI uri) {
return from(uri.toString());
}
static JarUri from(String uri) {
if (uri.startsWith(JAR_SCHEME) && uri.contains(JAR_EXTENSION)) {
return new JarUri(uri);
}
return null;
}
}
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- 所属分类： 后端技术
- 本文标签： Spring Boot Java Spring
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