| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.cassandra.serializers; |
| |
| import java.nio.ByteBuffer; |
| import java.util.List; |
| |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| |
| public class TupleSerializer extends BytesSerializer |
| { |
| public final List<TypeSerializer<?>> fields; |
| |
| public TupleSerializer(List<TypeSerializer<?>> fields) |
| { |
| this.fields = fields; |
| } |
| |
| @Override |
| public void validate(ByteBuffer bytes) throws MarshalException |
| { |
| ByteBuffer input = bytes.duplicate(); |
| for (int i = 0; i < fields.size(); i++) |
| { |
| // we allow the input to have less fields than declared so as to support field addition. |
| if (!input.hasRemaining()) |
| return; |
| |
| if (input.remaining() < Integer.BYTES) |
| throw new MarshalException(String.format("Not enough bytes to read size of %dth component", i)); |
| |
| int size = input.getInt(); |
| |
| // size < 0 means null value |
| if (size < 0) |
| continue; |
| |
| if (input.remaining() < size) |
| throw new MarshalException(String.format("Not enough bytes to read %dth component", i)); |
| |
| ByteBuffer field = ByteBufferUtil.readBytes(input, size); |
| fields.get(i).validate(field); |
| } |
| |
| // We're allowed to get less fields than declared, but not more |
| if (input.hasRemaining()) |
| throw new MarshalException("Invalid remaining data after end of tuple value"); |
| } |
| } |