Apache
/
commons-lang
mirror of https://github.com/apache/commons-lang.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Add ClassLoaderUtils.getSystemURLs() and getThreadURLs().

This commit is contained in:
Gary Gregory 2023-03-04 09:04:47 -05:00
parent 8ba794181d
commit e9f3ece022
3 changed files with 44 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
src/changes/changes.xml
View File

@ -188,6 +188,7 @@ The <action> type attribute can be add,update,fix,remove.
<action type="add" dev="ggregory" due-to="Arturo Bernal">Add CalendarUtils#getDayOfYear() #968</action>
<action type="add" dev="ggregory" due-to="Gary Gregory">Add NumberRange, DoubleRange, IntegerRange, LongRange.</action>
<action type="add" dev="ggregory" due-to="Diego Marcilio, Bruno P. Kinoshita, Gary Gregory">Add missing exception javadoc/tests for some null arguments #869.</action>
<action type="add" dev="ggregory" due-to="Gary Gregory">Add ClassLoaderUtils.getSystemURLs() and getThreadURLs().</action>
<!-- UPDATE -->
<action type="update" dev="ggregory" due-to="Dependabot, XenoAmess, Gary Gregory">Bump actions/cache from 2.1.4 to 3.0.10 #742, #752, #764, #833, #867, #959, #964.</action>
<action type="update" dev="ggregory" due-to="Dependabot, Gary Gregory">Bump actions/checkout from 2 to 3.1.0 #819, #825, #859, #963.</action>

30
src/main/java/org/apache/commons/lang3/ClassLoaderUtils.java
View File

@ -17,6 +17,7 @@
package org.apache.commons.lang3;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Arrays;
@ -27,6 +28,32 @@ import java.util.Arrays;
*/
public class ClassLoaderUtils {
private static final URL[] EMPTY_URL_ARRAY = new URL[] {};
/**
* Gets the system class loader's URLs, if any.
*
* @return the system class loader's URLs, if any.
* @since 3.13.0
*/
public static URL[] getSystemURLs() {
return getURLs(ClassLoader.getSystemClassLoader());
}
/**
* Gets the current thread's context class loader's URLs, if any.
*
* @return the current thread's context class loader's URLs, if any.
* @since 3.13.0
*/
public static URL[] getThreadURLs() {
return getURLs(Thread.currentThread().getContextClassLoader());
}
private static URL[] getURLs(final ClassLoader cl) {
return cl instanceof URLClassLoader ? ((URLClassLoader) cl).getURLs() : EMPTY_URL_ARRAY;
}
/**
* Converts the given class loader to a String calling {@link #toString(URLClassLoader)}.
*
@ -41,8 +68,7 @@ public class ClassLoaderUtils {
}
/**
* Converts the given URLClassLoader to a String in the format
* {@code "URLClassLoader.toString() + [URL1, URL2, ...]"}.
* Converts the given URLClassLoader to a String in the format {@code "URLClassLoader.toString() + [URL1, URL2, ...]"}.
*
* @param classLoader to URLClassLoader to convert.
* @return the formatted string.

17
src/test/java/org/apache/commons/lang3/ClassLoaderUtilsTest.java
View File

@ -17,6 +17,8 @@
package org.apache.commons.lang3;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
@ -29,6 +31,18 @@ import org.junit.jupiter.api.Test;
*/
public class ClassLoaderUtilsTest extends AbstractLangTest {
@Test
public void testGetSystemURLs() {
// TODO How to better test considering this test may be called from an IDE and Maven?
assertNotNull(ClassLoaderUtils.getSystemURLs());
}
@Test
public void testGetThreadURLs() {
// TODO How to better test considering this test may be called from an IDE and Maven?
assertNotNull(ClassLoaderUtils.getThreadURLs());
}
@Test
public void testToString_ClassLoader() throws IOException {
final URL url = new URL("http://localhost");
@ -43,8 +57,7 @@ public class ClassLoaderUtilsTest extends AbstractLangTest {
public void testToString_URLClassLoader() throws IOException {
final URL url = new URL("http://localhost");
try (URLClassLoader urlClassLoader = new URLClassLoader(new URL[] { url })) {
Assertions.assertEquals(String.format("%s[%s]", urlClassLoader, url),
ClassLoaderUtils.toString(urlClassLoader));
Assertions.assertEquals(String.format("%s[%s]", urlClassLoader, url), ClassLoaderUtils.toString(urlClassLoader));
}
}
}