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    }