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.camel.converter.ObjectConverter; 020 import org.apache.commons.logging.Log; 021 import org.apache.commons.logging.LogFactory; 022 023 /** 024 * A helper class for various {@link System} related methods 025 * 026 * @version $Revision: 792 $ 027 */ 028 public final class SystemHelper { 029 private static final transient Log LOG = LogFactory.getLog(SystemHelper.class); 030 031 private SystemHelper() { 032 // Helper class 033 } 034 035 /** 036 * Looks up the given system property name returning null if any exceptions occur 037 */ 038 public static String getSystemProperty(String name) { 039 try { 040 return System.getProperty(name); 041 } catch (Exception e) { 042 LOG.debug("Caught exception looking for system property: " + name + " exception: " + e, e); 043 return null; 044 } 045 } 046 047 /** 048 * Looks up the given system property boolean value. Returns false if the system property doesn't exist. 049 */ 050 public static boolean isSystemProperty(String name) { 051 String text = getSystemProperty(name); 052 return ObjectConverter.toBool(text); 053 } 054 055 }