ModernFix-fix/src/main/java/org/embeddedt/modernfix/mixin/VanillaPackMixin.java
2023-01-03 16:14:42 -05:00

54 lines
2.6 KiB
Java

package org.embeddedt.modernfix.mixin;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import net.minecraft.resources.ResourcePackType;
import net.minecraft.resources.VanillaPack;
import net.minecraft.util.ResourceLocation;
import org.apache.commons.lang3.tuple.Pair;
import org.embeddedt.modernfix.FileWalker;
import org.spongepowered.asm.mixin.Final;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Shadow;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.Redirect;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
import java.io.IOException;
import java.nio.file.*;
import java.util.EnumMap;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import java.util.stream.Stream;
@Mixin(VanillaPack.class)
public class VanillaPackMixin {
@Shadow @Final private static Map<ResourcePackType, FileSystem> JAR_FILESYSTEM_BY_TYPE;
private static LoadingCache<Pair<Path, Integer>, List<Path>> pathStreamLoadingCache = CacheBuilder.newBuilder()
.build(FileWalker.INSTANCE);
@Redirect(method = "getResources(Ljava/util/Collection;ILjava/lang/String;Ljava/nio/file/Path;Ljava/lang/String;Ljava/util/function/Predicate;)V", at = @At(value = "INVOKE", target = "Ljava/nio/file/Files;walk(Ljava/nio/file/Path;I[Ljava/nio/file/FileVisitOption;)Ljava/util/stream/Stream;"))
private static Stream<Path> useCacheForLoading(Path path, int maxDepth, FileVisitOption[] fileVisitOptions) throws IOException {
try {
return pathStreamLoadingCache.get(Pair.of(path, maxDepth)).stream();
} catch (ExecutionException e) {
if(e.getCause() instanceof IOException) /* generally always should be */
throw (IOException)e.getCause();
else
throw new IOException(e);
}
}
@Inject(method = "hasResource", at = @At(value = "INVOKE", target = "Ljava/lang/Class;getResource(Ljava/lang/String;)Ljava/net/URL;"), cancellable = true, locals = LocalCapture.CAPTURE_FAILHARD)
private void useCacheForExistence(ResourcePackType type, ResourceLocation location, CallbackInfoReturnable<Boolean> cir, String path) {
FileSystem fs = JAR_FILESYSTEM_BY_TYPE.get(type);
cir.setReturnValue(Files.exists(fs.getPath(path)));
}
}