| /* |
| * 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.beam.sdk.schemas.logicaltypes; |
| |
| import static org.apache.beam.vendor.guava.v26_0_jre.com.google.common.base.Preconditions.checkArgument; |
| |
| import java.util.Arrays; |
| import org.apache.beam.sdk.schemas.Schema.FieldType; |
| import org.apache.beam.sdk.schemas.Schema.LogicalType; |
| |
| /** A LogicalType representing a fixed-size byte array. */ |
| public class FixedBytes implements LogicalType<byte[], byte[]> { |
| public static final String IDENTIFIER = "FixedBytes"; |
| private final int byteArraySize; |
| |
| private FixedBytes(int byteArraySize) { |
| this.byteArraySize = byteArraySize; |
| } |
| |
| public static FixedBytes of(int byteArraySize) { |
| return new FixedBytes(byteArraySize); |
| } |
| |
| public int getLength() { |
| return byteArraySize; |
| } |
| |
| @Override |
| public String getIdentifier() { |
| return IDENTIFIER; |
| } |
| |
| @Override |
| public FieldType getArgumentType() { |
| return FieldType.INT32; |
| } |
| |
| @Override |
| public Integer getArgument() { |
| return byteArraySize; |
| } |
| |
| @Override |
| public FieldType getBaseType() { |
| return FieldType.BYTES; |
| } |
| |
| @Override |
| public byte[] toBaseType(byte[] input) { |
| checkArgument(input.length == byteArraySize); |
| return input; |
| } |
| |
| @Override |
| public byte[] toInputType(byte[] base) { |
| checkArgument(base.length <= byteArraySize); |
| if (base.length == byteArraySize) { |
| return base; |
| } else { |
| return Arrays.copyOf(base, byteArraySize); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return "FixedBytes: " + byteArraySize; |
| } |
| } |