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 }