| /* |
| * 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.iotdb.tsfile.read.common.block.column; |
| |
| import org.apache.iotdb.tsfile.read.common.block.TsBlockBuilderStatus; |
| import org.apache.iotdb.tsfile.utils.RamUsageEstimator; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| |
| import static java.lang.String.format; |
| import static java.util.Objects.requireNonNull; |
| |
| public class ColumnBuilderStatus { |
| |
| public static final long INSTANCE_SIZE = deepInstanceSize(ColumnBuilderStatus.class); |
| |
| private final TsBlockBuilderStatus tsBlockBuilderStatus; |
| |
| private int currentSize; |
| |
| public ColumnBuilderStatus(TsBlockBuilderStatus tsBlockBuilderStatus) { |
| this.tsBlockBuilderStatus = |
| requireNonNull(tsBlockBuilderStatus, "tsBlockBuilderStatus must not be null"); |
| } |
| |
| public int getMaxTsBlockSizeInBytes() { |
| return tsBlockBuilderStatus.getMaxTsBlockSizeInBytes(); |
| } |
| |
| public void addBytes(int bytes) { |
| currentSize += bytes; |
| tsBlockBuilderStatus.addBytes(bytes); |
| } |
| |
| @Override |
| public String toString() { |
| return "ColumnBuilderStatus{" + ", currentSize=" + currentSize + '}'; |
| } |
| |
| /** |
| * Computes the size of an instance of this class assuming that all reference fields are non-null |
| */ |
| private static long deepInstanceSize(Class<?> clazz) { |
| if (clazz.isArray()) { |
| throw new IllegalArgumentException( |
| format( |
| "Cannot determine size of %s because it contains an array", clazz.getSimpleName())); |
| } |
| if (clazz.isInterface()) { |
| throw new IllegalArgumentException(format("%s is an interface", clazz.getSimpleName())); |
| } |
| if (Modifier.isAbstract(clazz.getModifiers())) { |
| throw new IllegalArgumentException(format("%s is abstract", clazz.getSimpleName())); |
| } |
| if (!clazz.getSuperclass().equals(Object.class)) { |
| throw new IllegalArgumentException( |
| format( |
| "Cannot determine size of a subclass. %s extends from %s", |
| clazz.getSimpleName(), clazz.getSuperclass().getSimpleName())); |
| } |
| |
| long size = RamUsageEstimator.shallowSizeOf(clazz); |
| for (Field field : clazz.getDeclaredFields()) { |
| // if the field is not static and is a reference field and it's not synthetic |
| if (!Modifier.isStatic(field.getModifiers()) |
| && !field.getType().isPrimitive() |
| && !field.isSynthetic()) { |
| size += deepInstanceSize(field.getType()); |
| } |
| } |
| return size; |
| } |
| } |