001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.util; 018 019 import org.apache.commons.logging.Log; 020 import org.apache.commons.logging.LogFactory; 021 022 /** 023 * A helper class for various {@link System} related methods 024 * 025 * @version $Revision: 749236 $ 026 */ 027 public final class SystemHelper { 028 private static final transient Log LOG = LogFactory.getLog(SystemHelper.class); 029 030 private SystemHelper() { 031 // Helper class 032 } 033 034 /** 035 * Looks up the given system property name returning null if any exceptions occur 036 */ 037 public static String getSystemProperty(String name) { 038 try { 039 return System.getProperty(name); 040 } catch (Exception e) { 041 LOG.debug("Caught exception looking for system property: " + name + " exception: " + e, e); 042 return null; 043 } 044 } 045 046 /** 047 * Looks up the given system property boolean value. Returns false if the system property doesn't exist. 048 */ 049 public static boolean isSystemProperty(String name) { 050 String text = getSystemProperty(name); 051 Boolean answer = ObjectHelper.toBoolean(text); 052 return answer != null ? answer : false; 053 } 054 055 }