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ActiveMQ example source code file (MemoryPropertyEditor.java)
The ActiveMQ MemoryPropertyEditor.java source code/** * 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() : ""; } } Other ActiveMQ examples (source code examples)Here is a short list of links related to this ActiveMQ MemoryPropertyEditor.java source code file: |
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