| /** |
| * 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.activemq.util; |
| |
| import java.io.IOException; |
| import java.math.BigInteger; |
| |
| public final class IOExceptionSupport { |
| |
| private IOExceptionSupport() { |
| } |
| |
| public static IOException create(String msg, Throwable cause) { |
| IOException exception = new IOException(msg); |
| exception.initCause(cause); |
| return exception; |
| } |
| |
| public static IOException create(String msg, Exception cause) { |
| IOException exception = new IOException(msg); |
| exception.initCause(cause); |
| return exception; |
| } |
| |
| public static IOException create(Throwable cause) { |
| IOException exception = new IOException(cause.getMessage()); |
| exception.initCause(cause); |
| return exception; |
| } |
| |
| public static IOException create(Exception cause) { |
| IOException exception = new IOException(cause.getMessage()); |
| exception.initCause(cause); |
| return exception; |
| } |
| |
| public static IOException createFrameSizeException(int size, long maxSize) { |
| return new IOException("Frame size of " + toHumanReadableSizeString(size) + |
| " larger than max allowed " + toHumanReadableSizeString(maxSize)); |
| } |
| |
| private static String toHumanReadableSizeString(final int size) { |
| return toHumanReadableSizeString(BigInteger.valueOf(size)); |
| } |
| |
| private static String toHumanReadableSizeString(final long size) { |
| return toHumanReadableSizeString(BigInteger.valueOf(size)); |
| } |
| |
| private static String toHumanReadableSizeString(final BigInteger size) { |
| String displaySize; |
| |
| final BigInteger ONE_KB_BI = BigInteger.valueOf(1024); |
| final BigInteger ONE_MB_BI = ONE_KB_BI.multiply(ONE_KB_BI); |
| final BigInteger ONE_GB_BI = ONE_KB_BI.multiply(ONE_MB_BI); |
| |
| if (size.divide(ONE_GB_BI).compareTo(BigInteger.ZERO) > 0) { |
| displaySize = String.valueOf(size.divide(ONE_GB_BI)) + " GB"; |
| } else if (size.divide(ONE_MB_BI).compareTo(BigInteger.ZERO) > 0) { |
| displaySize = String.valueOf(size.divide(ONE_MB_BI)) + " MB"; |
| } else if (size.divide(ONE_KB_BI).compareTo(BigInteger.ZERO) > 0) { |
| displaySize = String.valueOf(size.divide(ONE_KB_BI)) + " KB"; |
| } else { |
| displaySize = String.valueOf(size) + " bytes"; |
| } |
| |
| return displaySize; |
| } |
| } |