/*
* Copyright 2008-present MongoDB, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.mongodb.internal.operation;
import org.bson.BsonArray;
import org.bson.BsonDocument;
import org.bson.BsonValue;
import org.bson.codecs.BsonArrayCodec;
import org.bson.codecs.BsonBinaryCodec;
import org.bson.codecs.BsonBooleanCodec;
import org.bson.codecs.BsonDBPointerCodec;
import org.bson.codecs.BsonDateTimeCodec;
import org.bson.codecs.BsonDecimal128Codec;
import org.bson.codecs.BsonDocumentCodec;
import org.bson.codecs.BsonDoubleCodec;
import org.bson.codecs.BsonInt32Codec;
import org.bson.codecs.BsonInt64Codec;
import org.bson.codecs.BsonJavaScriptCodec;
import org.bson.codecs.BsonJavaScriptWithScopeCodec;
import org.bson.codecs.BsonMaxKeyCodec;
import org.bson.codecs.BsonMinKeyCodec;
import org.bson.codecs.BsonNullCodec;
import org.bson.codecs.BsonObjectIdCodec;
import org.bson.codecs.BsonRegularExpressionCodec;
import org.bson.codecs.BsonStringCodec;
import org.bson.codecs.BsonSymbolCodec;
import org.bson.codecs.BsonTimestampCodec;
import org.bson.codecs.BsonUndefinedCodec;
import org.bson.codecs.Codec;
import org.bson.codecs.Decoder;
import org.bson.codecs.configuration.CodecProvider;
import org.bson.codecs.configuration.CodecRegistry;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
class CommandResultCodecProvider<P> implements CodecProvider {
private final Map<Class<?>, Codec<?>> codecs = new HashMap<Class<?>, Codec<?>>();
private final Decoder<P> payloadDecoder;
private final List<String> fieldsContainingPayload;
CommandResultCodecProvider(final Decoder<P> payloadDecoder, final List<String> fieldContainingPayload) {
this.payloadDecoder = payloadDecoder;
this.fieldsContainingPayload = fieldContainingPayload;
addCodecs();
}
@Override
@SuppressWarnings("unchecked")
public <T> Codec<T> get(final Class<T> clazz, final CodecRegistry registry) {
if (codecs.containsKey(clazz)) {
return (Codec<T>) codecs.get(clazz);
}
if (clazz == BsonArray.class) {
return (Codec<T>) new BsonArrayCodec(registry);
}
if (clazz == BsonDocument.class) {
return (Codec<T>) new CommandResultDocumentCodec<P>(registry, payloadDecoder, fieldsContainingPayload);
}
return null;
}
private void addCodecs() {
addCodec(new BsonNullCodec());
addCodec(new BsonBinaryCodec());
addCodec(new BsonBooleanCodec());
addCodec(new BsonDateTimeCodec());
addCodec(new BsonDBPointerCodec());
addCodec(new BsonDoubleCodec());
addCodec(new BsonInt32Codec());
addCodec(new BsonInt64Codec());
addCodec(new BsonDecimal128Codec());
addCodec(new BsonMinKeyCodec());
addCodec(new BsonMaxKeyCodec());
addCodec(new BsonJavaScriptCodec());
addCodec(new BsonObjectIdCodec());
addCodec(new BsonRegularExpressionCodec());
addCodec(new BsonStringCodec());
addCodec(new BsonSymbolCodec());
addCodec(new BsonTimestampCodec());
addCodec(new BsonUndefinedCodec());
addCodec(new BsonJavaScriptWithScopeCodec(new BsonDocumentCodec()));
}
private <T extends BsonValue> void addCodec(final Codec<T> codec) {
codecs.put(codec.getEncoderClass(), codec);
}
@Override
public boolean equals(final Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
CommandResultCodecProvider<?> that = (CommandResultCodecProvider) o;
if (!fieldsContainingPayload.equals(that.fieldsContainingPayload)) {
return false;
}
if (!payloadDecoder.getClass().equals(that.payloadDecoder.getClass())) {
return false;
}
return true;
}
@Override
public int hashCode() {
int result = payloadDecoder.getClass().hashCode();
result = 31 * result + fieldsContainingPayload.hashCode();
return result;
}
}