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rewrote discovery and registration code to be composable and higher level

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Sxtanna
2020-07-26 21:02:55 -04:00
parent ee33de5ec8
commit 8360511c50
5 changed files with 139 additions and 112 deletions
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40
src/main/java/me/clip/placeholderapi/util/FileUtil.java
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@@ -24,51 +24,25 @@ import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarInputStream;
public class FileUtil
{
@NotNull
public static <T> List<@NotNull Class<? extends T>> getClasses(@NotNull final File folder, @NotNull final Class<T> clazz) throws IOException, ClassNotFoundException
@Nullable
public static <T> Class<? extends T> findClass(@NotNull final File file, @NotNull final Class<T> clazz) throws IOException, ClassNotFoundException
{
return getClasses(folder, clazz, null);
}
@NotNull
public static <T> List<@NotNull Class<? extends T>> getClasses(@NotNull final File folder, @NotNull final Class<T> clazz, @Nullable final String target) throws IOException, ClassNotFoundException
{
if (!folder.exists())
if (!file.exists())
{
return Collections.emptyList();
return null;
}
final File[] jars = folder.listFiles((dir, name) -> name.endsWith(".jar") && (target == null || name.replace(".jar", "").equalsIgnoreCase(target.replace(".jar", ""))));
if (jars == null)
{
return Collections.emptyList();
}
final URL jar = file.toURI().toURL();
final List<@NotNull Class<? extends T>> list = new ArrayList<>();
for (final File file : jars)
{
gather(file.toURI().toURL(), clazz, list);
}
return list;
}
private static <T> void gather(@NotNull final URL jar, @NotNull final Class<T> clazz, @NotNull final List<@NotNull Class<? extends T>> list) throws IOException, ClassNotFoundException
{
try (final URLClassLoader loader = new URLClassLoader(new URL[]{jar}, clazz.getClassLoader()); final JarInputStream stream = new JarInputStream(jar.openStream()))
{
JarEntry entry;
@@ -85,7 +59,7 @@ public class FileUtil
final Class<?> loaded = loader.loadClass(name.substring(0, name.lastIndexOf('.')).replace('/', '.'));
if (clazz.isAssignableFrom(loaded))
{
list.add(loaded.asSubclass(clazz));
return loaded.asSubclass(clazz);
}
}
catch (final NoClassDefFoundError ignored)
@@ -93,6 +67,8 @@ public class FileUtil
}
}
}
return null;
}
}