io.datarouter.binarydto.multi.bytearray.MultiBinaryDtoEncoder Maven / Gradle / Ivy
/*
* Copyright © 2009 HotPads ([email protected])
*
* 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 io.datarouter.binarydto.multi.bytearray;
import java.util.List;
import io.datarouter.binarydto.codec.BinaryDtoIndexedCodec;
import io.datarouter.binarydto.dto.BaseBinaryDto;
import io.datarouter.bytes.ByteTool;
import io.datarouter.bytes.varint.VarIntTool;
import io.datarouter.scanner.Scanner;
public class MultiBinaryDtoEncoder>{
private final BinaryDtoIndexedCodec codec;
public MultiBinaryDtoEncoder(Class dtoClass){
this.codec = BinaryDtoIndexedCodec.of(dtoClass);
}
public MultiBinaryDtoEncoder(BinaryDtoIndexedCodec codec){
this.codec = codec;
}
public Scanner encode(List dtos){
return encode(Scanner.of(dtos));
}
public Scanner encode(Scanner dtos){
return dtos
.concat(dto -> {
byte[] dataBytes = codec.encode(dto);
byte[] lengthBytes = VarIntTool.encode(dataBytes.length);
return Scanner.of(lengthBytes, dataBytes);
});
}
public Scanner encodeWithConcatenatedLength(List dtos){
return encodeWithConcatenatedLength(Scanner.of(dtos));
}
public Scanner encodeWithConcatenatedLength(Scanner dtos){
return dtos
.map(dto -> {
byte[] dataBytes = codec.encode(dto);
byte[] lengthBytes = VarIntTool.encode(dataBytes.length);
return ByteTool.concat(lengthBytes, dataBytes);
});
}
}