hytale-server/com/hypixel/hytale/codec/codecs/map/ObjectMapCodec.java

134 lines
4.5 KiB
Java

package com.hypixel.hytale.codec.codecs.map;
import com.hypixel.hytale.codec.Codec;
import com.hypixel.hytale.codec.ExtraInfo;
import com.hypixel.hytale.codec.WrappedCodec;
import com.hypixel.hytale.codec.exception.CodecException;
import com.hypixel.hytale.codec.schema.SchemaContext;
import com.hypixel.hytale.codec.schema.config.ObjectSchema;
import com.hypixel.hytale.codec.schema.config.Schema;
import com.hypixel.hytale.codec.schema.config.StringSchema;
import com.hypixel.hytale.codec.util.RawJsonReader;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.Function;
import java.util.function.Supplier;
import javax.annotation.Nonnull;
import org.bson.BsonDocument;
import org.bson.BsonValue;
@Deprecated
public class ObjectMapCodec<K, V, M extends Map<K, V>> implements Codec<Map<K, V>>, WrappedCodec<V> {
private final Codec<V> codec;
private final Supplier<M> supplier;
private final Function<K, String> keyToString;
private final Function<String, K> stringToKey;
private final boolean unmodifiable;
public ObjectMapCodec(Codec<V> codec, Supplier<M> supplier, Function<K, String> keyToString, Function<String, K> stringToKey) {
this(codec, supplier, keyToString, stringToKey, true);
}
public ObjectMapCodec(Codec<V> codec, Supplier<M> supplier, Function<K, String> keyToString, Function<String, K> stringToKey, boolean unmodifiable) {
this.codec = codec;
this.supplier = supplier;
this.keyToString = keyToString;
this.stringToKey = stringToKey;
this.unmodifiable = unmodifiable;
}
@Override
public Codec<V> getChildCodec() {
return this.codec;
}
public Map<K, V> decode(@Nonnull BsonValue bsonValue, @Nonnull ExtraInfo extraInfo) {
BsonDocument bsonDocument = bsonValue.asDocument();
Map<K, V> map = this.supplier.get();
for (Entry<String, BsonValue> entry : bsonDocument.entrySet()) {
String key = entry.getKey();
BsonValue value = entry.getValue();
K decodedKey = this.stringToKey.apply(key);
extraInfo.pushKey(key);
try {
map.put(decodedKey, this.codec.decode(value, extraInfo));
} catch (Exception var14) {
throw new CodecException("Failed to decode", value, extraInfo, var14);
} finally {
extraInfo.popKey();
}
}
if (this.unmodifiable) {
map = Collections.unmodifiableMap(map);
}
return map;
}
@Nonnull
public BsonValue encode(@Nonnull Map<K, V> map, ExtraInfo extraInfo) {
BsonDocument bsonDocument = new BsonDocument();
for (Entry<K, V> entry : map.entrySet()) {
BsonValue value = this.codec.encode(entry.getValue(), extraInfo);
if (value != null && !value.isNull() && (!value.isDocument() || !value.asDocument().isEmpty()) && (!value.isArray() || !value.asArray().isEmpty())) {
bsonDocument.put(this.keyToString.apply(entry.getKey()), value);
}
}
return bsonDocument;
}
public Map<K, V> decodeJson(@Nonnull RawJsonReader reader, @Nonnull ExtraInfo extraInfo) throws IOException {
reader.expect('{');
reader.consumeWhiteSpace();
if (reader.tryConsume('}')) {
return this.unmodifiable ? Collections.emptyMap() : this.supplier.get();
} else {
Map<K, V> map = this.supplier.get();
while (true) {
String key = reader.readString();
K decodedKey = this.stringToKey.apply(key);
reader.consumeWhiteSpace();
reader.expect(':');
reader.consumeWhiteSpace();
extraInfo.pushKey(key, reader);
try {
map.put(decodedKey, this.codec.decodeJson(reader, extraInfo));
} catch (Exception var10) {
throw new CodecException("Failed to decode", reader, extraInfo, var10);
} finally {
extraInfo.popKey();
}
reader.consumeWhiteSpace();
if (reader.tryConsumeOrExpect('}', ',')) {
if (this.unmodifiable) {
map = Collections.unmodifiableMap(map);
}
return map;
}
reader.consumeWhiteSpace();
}
}
}
@Nonnull
@Override
public Schema toSchema(@Nonnull SchemaContext context) {
ObjectSchema s = new ObjectSchema();
s.setPropertyNames(new StringSchema());
s.setAdditionalProperties(context.refDefinition(this.codec));
return s;
}
}