| /** |
| * 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.beans.PropertyEditorSupport; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Converts string values like "20 Mb", "1024kb", and "1g" to long values in |
| * bytes. |
| */ |
| public class MemoryPropertyEditor extends PropertyEditorSupport { |
| public void setAsText(String text) throws IllegalArgumentException { |
| |
| Pattern p = Pattern.compile("^\\s*(\\d+)\\s*(b)?\\s*$", Pattern.CASE_INSENSITIVE); |
| Matcher m = p.matcher(text); |
| if (m.matches()) { |
| setValue(Long.valueOf(Long.parseLong(m.group(1)))); |
| return; |
| } |
| |
| p = Pattern.compile("^\\s*(\\d+)\\s*k(b)?\\s*$", Pattern.CASE_INSENSITIVE); |
| m = p.matcher(text); |
| if (m.matches()) { |
| setValue(Long.valueOf(Long.parseLong(m.group(1)) * 1024)); |
| return; |
| } |
| |
| p = Pattern.compile("^\\s*(\\d+)\\s*m(b)?\\s*$", Pattern.CASE_INSENSITIVE); |
| m = p.matcher(text); |
| if (m.matches()) { |
| setValue(Long.valueOf(Long.parseLong(m.group(1)) * 1024 * 1024)); |
| return; |
| } |
| |
| p = Pattern.compile("^\\s*(\\d+)\\s*g(b)?\\s*$", Pattern.CASE_INSENSITIVE); |
| m = p.matcher(text); |
| if (m.matches()) { |
| setValue(Long.valueOf(Long.parseLong(m.group(1)) * 1024 * 1024 * 1024)); |
| return; |
| } |
| |
| throw new IllegalArgumentException("Could convert not to a memory size: " + text); |
| } |
| |
| public String getAsText() { |
| Long value = (Long)getValue(); |
| return value != null ? value.toString() : ""; |
| } |
| |
| } |