| /* |
| * 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.geode.management.internal.cli.util; |
| |
| import java.text.DecimalFormat; |
| import java.text.NumberFormat; |
| |
| public class BytesToString { |
| private static final double BYTES_PER_KB = 1024; |
| private static final double BYTES_PER_MB = 1024 * BYTES_PER_KB; |
| private static final double BYTES_PER_GB = 1024 * BYTES_PER_MB; |
| private static final double BYTES_PER_TB = 1024 * BYTES_PER_GB; |
| |
| /** |
| * Returns a String that concisely displays the given number of bytes, e.g. "1 KB" or "2.49 MB". |
| */ |
| public String of(long sizeInBytes) { |
| final NumberFormat numberFormat = new DecimalFormat(); |
| numberFormat.setMaximumFractionDigits(2); |
| |
| try { |
| if (sizeInBytes < BYTES_PER_KB) { |
| return numberFormat.format(sizeInBytes) + " Byte(s)"; |
| } else if (sizeInBytes < BYTES_PER_MB) { |
| return numberFormat.format(sizeInBytes / BYTES_PER_KB) + " KB"; |
| } else if (sizeInBytes < BYTES_PER_GB) { |
| return numberFormat.format(sizeInBytes / BYTES_PER_MB) + " MB"; |
| } else if (sizeInBytes < BYTES_PER_TB) { |
| return numberFormat.format(sizeInBytes / BYTES_PER_GB) + " GB"; |
| } else { |
| return numberFormat.format(sizeInBytes / BYTES_PER_TB) + " TB"; |
| } |
| } catch (Exception e) { |
| return sizeInBytes + " Byte(s)"; |
| } |
| } |
| |
| } |