/
ItemFilter.java
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/
ItemFilter.java
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package mezz.jei;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.ArrayList;
import java.util.List;
import com.google.common.base.Predicate;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.cache.Weigher;
import com.google.common.collect.HashMultiset;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Multiset;
import mezz.jei.api.IItemBlacklist;
import mezz.jei.api.IItemRegistry;
import mezz.jei.config.Config;
import mezz.jei.util.ErrorUtil;
import mezz.jei.util.ItemStackElement;
import mezz.jei.util.Log;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.ItemModelMesher;
import net.minecraft.client.renderer.RenderItem;
import net.minecraft.client.renderer.block.model.IBakedModel;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
public class ItemFilter {
/** A cache for fast searches while typing or using backspace. Maps filterText to filteredItemMaps */
private final LoadingCache<String, ImmutableList<ItemStackElement>> filteredItemMapsCache;
public ItemFilter(final IItemRegistry itemRegistry) {
filteredItemMapsCache = CacheBuilder.newBuilder()
.maximumWeight(16)
.weigher(new SearchFilterWeigher())
.concurrencyLevel(1)
.build(new ItemFilterCacheLoader(itemRegistry));
// preload the base list
filteredItemMapsCache.getUnchecked("");
}
public void reset() {
this.filteredItemMapsCache.invalidateAll();
}
@Nonnull
public ImmutableList<ItemStackElement> getItemList() {
String[] filters = Config.getFilterText().split("\\|");
if (filters.length == 1) {
String filter = filters[0];
return filteredItemMapsCache.getUnchecked(filter);
} else {
ImmutableList.Builder<ItemStackElement> itemList = ImmutableList.builder();
for (String filter : filters) {
List<ItemStackElement> itemStackElements = filteredItemMapsCache.getUnchecked(filter);
itemList.addAll(itemStackElements);
}
return itemList.build();
}
}
public int size() {
return getItemList().size();
}
private static ImmutableList<ItemStackElement> createBaseList(IItemRegistry itemRegistry) {
ItemStackChecker itemStackChecker = new ItemStackChecker();
ImmutableList.Builder<ItemStackElement> baseList = ImmutableList.builder();
for (ItemStack itemStack : itemRegistry.getItemList()) {
if (itemStack == null) {
continue;
}
if (itemStackChecker.isItemStackHidden(itemStack)) {
continue;
}
ItemStackElement itemStackElement = ItemStackElement.create(itemStack);
if (itemStackElement != null) {
baseList.add(itemStackElement);
}
}
for (Multiset.Entry<Item> brokenItem : itemStackChecker.getBrokenItems().entrySet()) {
int count = brokenItem.getCount();
if (count > 1) {
Item item = brokenItem.getElement();
String modName = Internal.getItemRegistry().getModNameForItem(item);
Log.error("Couldn't get ItemModel for {} item {}. Suppressed {} similar errors.", modName, item, count);
}
}
return baseList.build();
}
private static class SearchFilterWeigher implements Weigher<String, ImmutableList<ItemStackElement>> {
public int weigh(@Nonnull String key, @Nonnull ImmutableList<ItemStackElement> value) {
// The CacheLoader is recursive, so keep the base value in the cache permanently by setting its weight to 0
return (key.length() == 0) ? 0 : 1;
}
}
private class ItemFilterCacheLoader extends CacheLoader<String, ImmutableList<ItemStackElement>> {
private final IItemRegistry itemRegistry;
public ItemFilterCacheLoader(IItemRegistry itemRegistry) {
this.itemRegistry = itemRegistry;
}
@Override
public ImmutableList<ItemStackElement> load(@Nonnull final String filterText) throws Exception {
if (filterText.length() == 0) {
return createBaseList(itemRegistry);
}
// Recursive.
// Find a cached filter that is before the one we want, so we don't have to filter the full item list.
// For example, the "", "i", "ir", and "iro" filters contain everything in the "iron" filter and more.
String prevFilterText = filterText.substring(0, filterText.length() - 1);
ImmutableList<ItemStackElement> baseItemSet = filteredItemMapsCache.get(prevFilterText);
FilterPredicate filterPredicate = new FilterPredicate(filterText);
ImmutableList.Builder<ItemStackElement> itemStackElementsBuilder = ImmutableList.builder();
for (ItemStackElement itemStackElement : baseItemSet) {
if (filterPredicate.apply(itemStackElement)) {
itemStackElementsBuilder.add(itemStackElement);
}
}
return itemStackElementsBuilder.build();
}
}
private static class ItemStackChecker {
private final IItemBlacklist itemBlacklist;
private final ItemModelMesher itemModelMesher;
private final IBakedModel missingModel;
private final Multiset<Item> brokenItems = HashMultiset.create();
public ItemStackChecker() {
itemBlacklist = Internal.getHelpers().getItemBlacklist();
itemModelMesher = Minecraft.getMinecraft().getRenderItem().getItemModelMesher();
missingModel = itemModelMesher.getModelManager().getMissingModel();
}
public boolean isItemStackHidden(@Nonnull ItemStack itemStack) {
if (isItemHiddenByBlacklist(itemStack)) {
return true;
}
return isItemStackHiddenByMissingModel(itemStack);
}
public Multiset<Item> getBrokenItems() {
return brokenItems;
}
private boolean isItemStackHiddenByMissingModel(@Nonnull ItemStack itemStack) {
Item item = itemStack.getItem();
if (brokenItems.contains(item)) {
return true;
}
final RenderItem renderItem = Minecraft.getMinecraft().getRenderItem();
final IBakedModel itemModel;
try {
itemModel = renderItem.getItemModelWithOverrides(itemStack, null, null);
} catch (RuntimeException | LinkageError e) {
String modName = Internal.getItemRegistry().getModNameForItem(item);
String stackInfo = ErrorUtil.getItemStackInfo(itemStack);
Log.error("Couldn't get ItemModel for {} itemStack {}", modName, stackInfo, e);
brokenItems.add(item);
return true;
}
if (Config.isHideMissingModelsEnabled()) {
return itemModel == null || itemModel == missingModel;
}
return false;
}
private boolean isItemHiddenByBlacklist(@Nonnull ItemStack itemStack) {
try {
if (!itemBlacklist.isItemBlacklisted(itemStack)) {
return false;
}
} catch (RuntimeException e) {
String stackInfo = ErrorUtil.getItemStackInfo(itemStack);
Log.error("Could not check blacklist for stack {}", stackInfo, e);
return true;
}
if (Config.isEditModeEnabled()) {
// edit mode can only change the config blacklist, not things blacklisted through the API
return !Config.isItemOnConfigBlacklist(itemStack);
}
return true;
}
}
private static class FilterPredicate implements Predicate<ItemStackElement> {
private final List<String> searchTokens = new ArrayList<>();
private final List<String> modNameTokens = new ArrayList<>();
private final List<String> tooltipTokens = new ArrayList<>();
private final List<String> oreDictTokens = new ArrayList<>();
private final List<String> creativeTabTokens = new ArrayList<>();
private final List<String> colorTokens = new ArrayList<>();
public FilterPredicate(String filterText) {
String[] tokens = filterText.split(" ");
for (String token : tokens) {
if (token.isEmpty()) {
continue;
}
if (token.startsWith("@")) {
addTokenWithoutPrefix(token, modNameTokens);
} else if (token.startsWith("#")) {
addTokenWithoutPrefix(token, tooltipTokens);
} else if (token.startsWith("$")) {
addTokenWithoutPrefix(token, oreDictTokens);
} else if (token.startsWith("%")) {
addTokenWithoutPrefix(token, creativeTabTokens);
} else if (token.startsWith("^")) {
addTokenWithoutPrefix(token, colorTokens);
} else {
searchTokens.add(token);
}
}
}
private static void addTokenWithoutPrefix(String token, List<String> tokensList) {
if (token.length() < 2) {
return;
}
String tokenText = token.substring(1);
tokensList.add(tokenText);
}
@Override
public boolean apply(@Nullable ItemStackElement input) {
if (input == null) {
return false;
}
if (!stringContainsTokens(input.getModNameString(), modNameTokens)) {
return false;
}
if (!stringContainsTokens(input.getTooltipString(), tooltipTokens)) {
return false;
}
if (!stringContainsTokens(input.getOreDictString(), oreDictTokens)) {
return false;
}
if (!stringContainsTokens(input.getCreativeTabsString(), creativeTabTokens)) {
return false;
}
if (!stringContainsTokens(input.getColorString(), colorTokens)) {
return false;
}
return stringContainsTokens(input.getSearchString(), searchTokens);
}
private static boolean stringContainsTokens(String comparisonString, List<String> tokens) {
for (String token : tokens) {
if (!comparisonString.contains(token)) {
return false;
}
}
return true;
}
}
}