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Replace random ChatGPT method with random StackOverflow method for getting classes from jar

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This commit is contained in:
darin.kelkhoff
2023-04-18 13:56:08 -05:00
parent 22d0c5c79b
commit fc6a72eb09
2 changed files with 12 additions and 31 deletions
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40
qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/model/metadata/MetaDataProducerHelper.java
View File

@ -22,12 +22,13 @@
package com.kingsrook.qqq.backend.core.model.metadata;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import com.google.common.reflect.ClassPath;
import com.kingsrook.qqq.backend.core.logging.QLogger;
import static com.kingsrook.qqq.backend.core.logging.LogUtils.logPair;
@ -47,7 +48,7 @@ public class MetaDataProducerHelper
**
** Note - they'll be sorted by the sortOrder they provide.
*******************************************************************************/
public static void processAllMetaDataProducersInPackage(QInstance instance, String packageName)
public static void processAllMetaDataProducersInPackage(QInstance instance, String packageName) throws IOException
{
////////////////////////////////////////////////////////////
// find all the meta data producer classes in the package //
@ -111,40 +112,19 @@ public class MetaDataProducerHelper
/*******************************************************************************
** Thanks, Chat GPT.
** from https://stackoverflow.com/questions/520328/can-you-find-all-classes-in-a-package-using-reflection
** (since the original, from ChatGPT, didn't work in jars, despite GPT hallucinating that it would)
*******************************************************************************/
private static List<Class<?>> getClassesInPackage(String packageName)
private static List<Class<?>> getClassesInPackage(String packageName) throws IOException
{
List<Class<?>> classes = new ArrayList<>();
ClassLoader loader = Thread.currentThread().getContextClassLoader();
String path = packageName.replace('.', '/');
File directory = new File(Thread.currentThread().getContextClassLoader().getResource(path).getFile());
if(directory.exists())
for(ClassPath.ClassInfo info : ClassPath.from(loader).getTopLevelClasses())
{
File[] files = directory.listFiles();
if(files != null)
if(info.getName().startsWith(packageName))
{
for(File file : files)
{
if(file.isFile() && file.getName().endsWith(".class"))
{
String className = packageName + '.' + file.getName().substring(0, file.getName().length() - 6);
try
{
classes.add(Class.forName(className));
}
catch(ClassNotFoundException e)
{
// Ignore, class not found
}
}
else if(file.isDirectory())
{
List<Class<?>> subClasses = getClassesInPackage(packageName + "." + file.getName());
classes.addAll(subClasses);
}
}
classes.add(info.load());
}
}

3
qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/model/metadata/MetaDataProducerHelperTest.java
View File

@ -22,6 +22,7 @@
package com.kingsrook.qqq.backend.core.model.metadata;
import java.io.IOException;
import com.kingsrook.qqq.backend.core.model.metadata.producers.TestMetaDataProducer;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertTrue;
@ -37,7 +38,7 @@ class MetaDataProducerHelperTest
**
*******************************************************************************/
@Test
void test()
void test() throws IOException
{
QInstance qInstance = new QInstance();
MetaDataProducerHelper.processAllMetaDataProducersInPackage(qInstance, "com.kingsrook.qqq.backend.core.model.metadata.producers");