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Merge pull request #5289 from Vladimir Tsanev

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* gh-5289:
  Polish contribution
  Update JarURLConnection to support jar:file://… URLs
This commit is contained in:
Andy Wilkinson 2016-04-06 17:05:56 +01:00
commit 7f3d4adfef
2 changed files with 24 additions and 4 deletions
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14
spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/JarURLConnection.java
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@ -1,5 +1,5 @@
/*
* Copyright 2012-2014 the original author or authors.
* Copyright 2012-2016 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.
@ -59,6 +59,8 @@ class JarURLConnection extends java.net.JarURLConnection {
private static final JarEntryName EMPTY_JAR_ENTRY_NAME = new JarEntryName("");
private static final String FILE_COLON_DOUBLE_SLASH = "file://";
private static ThreadLocal<Boolean> useFastExceptions = new ThreadLocal<Boolean>();
private final JarFile jarFile;
@ -73,7 +75,8 @@ class JarURLConnection extends java.net.JarURLConnection {
// What we pass to super is ultimately ignored
super(EMPTY_JAR_URL);
this.url = url;
String spec = url.getFile().substring(jarFile.getUrl().getFile().length());
String spec = getNormalizedFile(url)
.substring(jarFile.getUrl().getFile().length());
int separator;
while ((separator = spec.indexOf(SEPARATOR)) > 0) {
jarFile = getNestedJarFile(jarFile, spec.substring(0, separator));
@ -83,6 +86,13 @@ class JarURLConnection extends java.net.JarURLConnection {
this.jarEntryName = getJarEntryName(spec);
}
private String getNormalizedFile(URL url) {
if (!url.getFile().startsWith(FILE_COLON_DOUBLE_SLASH)) {
return url.getFile();
}
return "file:" + url.getFile().substring(FILE_COLON_DOUBLE_SLASH.length());
}
private JarFile getNestedJarFile(JarFile jarFile, String name) throws IOException {
JarEntry jarEntry = jarFile.getJarEntry(name);
if (jarEntry == null) {

14
spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/jar/JarFileTests.java
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@ -1,5 +1,5 @@
/*
* Copyright 2012-2015 the original author or authors.
* Copyright 2012-2016 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.
@ -321,8 +321,18 @@ public class JarFileTests {
@Test
public void createNonNestedUrlFromString() throws Exception {
nonNestedJarFileFromString(
"jar:file:" + this.rootJarFile.getAbsolutePath() + "!/2.dat");
}
@Test
public void createNonNestedUrlFromStringWithDoubleSlash() throws Exception {
nonNestedJarFileFromString(
"jar:file://" + this.rootJarFile.getAbsolutePath() + "!/2.dat");
}
private void nonNestedJarFileFromString(String spec) throws Exception {
JarFile.registerUrlProtocolHandler();
String spec = "jar:" + this.rootJarFile.toURI() + "!/2.dat";
URL url = new URL(spec);
assertThat(url.toString(), equalTo(spec));
InputStream inputStream = url.openStream();