minecraft-src/net/minecraft/server/packs/resources/MultiPackResourceManager.java
2025-07-04 01:41:11 +03:00

126 lines
4.3 KiB
Java

package net.minecraft.server.packs.resources;
import com.mojang.logging.LogUtils;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.TreeMap;
import java.util.function.Predicate;
import java.util.stream.Stream;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.server.packs.PackResources;
import net.minecraft.server.packs.PackType;
import org.jetbrains.annotations.Nullable;
import org.slf4j.Logger;
public class MultiPackResourceManager implements CloseableResourceManager {
private static final Logger LOGGER = LogUtils.getLogger();
private final Map<String, FallbackResourceManager> namespacedManagers;
private final List<PackResources> packs;
public MultiPackResourceManager(PackType type, List<PackResources> packs) {
this.packs = List.copyOf(packs);
Map<String, FallbackResourceManager> map = new HashMap();
List<String> list = packs.stream().flatMap(packResourcesx -> packResourcesx.getNamespaces(type).stream()).distinct().toList();
for (PackResources packResources : packs) {
ResourceFilterSection resourceFilterSection = this.getPackFilterSection(packResources);
Set<String> set = packResources.getNamespaces(type);
Predicate<ResourceLocation> predicate = resourceFilterSection != null
? resourceLocation -> resourceFilterSection.isPathFiltered(resourceLocation.getPath())
: null;
for (String string : list) {
boolean bl = set.contains(string);
boolean bl2 = resourceFilterSection != null && resourceFilterSection.isNamespaceFiltered(string);
if (bl || bl2) {
FallbackResourceManager fallbackResourceManager = (FallbackResourceManager)map.get(string);
if (fallbackResourceManager == null) {
fallbackResourceManager = new FallbackResourceManager(type, string);
map.put(string, fallbackResourceManager);
}
if (bl && bl2) {
fallbackResourceManager.push(packResources, predicate);
} else if (bl) {
fallbackResourceManager.push(packResources);
} else {
fallbackResourceManager.pushFilterOnly(packResources.packId(), predicate);
}
}
}
}
this.namespacedManagers = map;
}
@Nullable
private ResourceFilterSection getPackFilterSection(PackResources packResources) {
try {
return packResources.getMetadataSection(ResourceFilterSection.TYPE);
} catch (IOException var3) {
LOGGER.error("Failed to get filter section from pack {}", packResources.packId());
return null;
}
}
@Override
public Set<String> getNamespaces() {
return this.namespacedManagers.keySet();
}
@Override
public Optional<Resource> getResource(ResourceLocation resourceLocation) {
ResourceManager resourceManager = (ResourceManager)this.namespacedManagers.get(resourceLocation.getNamespace());
return resourceManager != null ? resourceManager.getResource(resourceLocation) : Optional.empty();
}
@Override
public List<Resource> getResourceStack(ResourceLocation location) {
ResourceManager resourceManager = (ResourceManager)this.namespacedManagers.get(location.getNamespace());
return resourceManager != null ? resourceManager.getResourceStack(location) : List.of();
}
@Override
public Map<ResourceLocation, Resource> listResources(String path, Predicate<ResourceLocation> filter) {
checkTrailingDirectoryPath(path);
Map<ResourceLocation, Resource> map = new TreeMap();
for (FallbackResourceManager fallbackResourceManager : this.namespacedManagers.values()) {
map.putAll(fallbackResourceManager.listResources(path, filter));
}
return map;
}
@Override
public Map<ResourceLocation, List<Resource>> listResourceStacks(String path, Predicate<ResourceLocation> filter) {
checkTrailingDirectoryPath(path);
Map<ResourceLocation, List<Resource>> map = new TreeMap();
for (FallbackResourceManager fallbackResourceManager : this.namespacedManagers.values()) {
map.putAll(fallbackResourceManager.listResourceStacks(path, filter));
}
return map;
}
private static void checkTrailingDirectoryPath(String path) {
if (path.endsWith("/")) {
throw new IllegalArgumentException("Trailing slash in path " + path);
}
}
@Override
public Stream<PackResources> listPacks() {
return this.packs.stream();
}
@Override
public void close() {
this.packs.forEach(PackResources::close);
}
}