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.geronimo.system.configuration.condition; 018 019 import org.apache.commons.logging.Log; 020 import org.apache.commons.logging.LogFactory; 021 022 /** 023 * Provides access to Java version details for use in condition expressions. 024 * 025 * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $ 026 */ 027 public class JavaVariable 028 { 029 private static final Log log = LogFactory.getLog(JavaVariable.class); 030 031 public String getVendor() { 032 return SystemUtils.JAVA_VENDOR; 033 } 034 035 public String getVresion() { 036 return SystemUtils.JAVA_VERSION; 037 } 038 039 public String getVmVendor() { 040 return SystemUtils.JAVA_VM_VENDOR; 041 } 042 043 public String getVmVersion() { 044 return SystemUtils.JAVA_VM_VERSION; 045 } 046 047 public boolean getIs1_1() { 048 return SystemUtils.IS_JAVA_1_1; 049 } 050 051 public boolean getIs1_2() { 052 return SystemUtils.IS_JAVA_1_2; 053 } 054 055 public boolean getIs1_3() { 056 return SystemUtils.IS_JAVA_1_3; 057 } 058 059 public boolean getIs1_4() { 060 return SystemUtils.IS_JAVA_1_4; 061 } 062 063 public boolean getIs1_5() { 064 return SystemUtils.IS_JAVA_1_5; 065 } 066 067 public boolean getIs1_6() { 068 return SystemUtils.IS_JAVA_1_6; 069 } 070 071 public boolean getIsVersionAtLeast(final float requiredVersion) { 072 return SystemUtils.isJavaVersionAtLeast(requiredVersion); 073 } 074 075 public boolean getIsVersionAtLeast(final int requiredVersion) { 076 return SystemUtils.isJavaVersionAtLeast(requiredVersion); 077 } 078 079 public boolean getVersionMatches(String version) { 080 version = version.trim(); 081 082 boolean debug = log.isDebugEnabled(); 083 boolean result = false; 084 085 if (version.endsWith("*")) { 086 version = version.substring(0, version.length() - 1).trim(); 087 088 if (debug) { 089 log.debug("Checking Java version is in the same group as: " + version); 090 } 091 092 String tmp = SystemUtils.JAVA_VERSION_TRIMMED; 093 094 if (debug) { 095 log.debug("Requested version: " + tmp); 096 log.debug("JVM version: " + SystemUtils.JAVA_VERSION_FLOAT); 097 } 098 099 result = tmp.startsWith(version); 100 } 101 else if (version.endsWith("+")) { 102 version = version.substring(0, version.length() - 1).trim(); 103 104 if (debug) { 105 log.debug("Checking Java version is greater than: " + version); 106 } 107 108 float tmp = Float.parseFloat(version); 109 110 if (debug) { 111 log.debug("Requested version: " + tmp); 112 log.debug("JVM version: " + SystemUtils.JAVA_VERSION_FLOAT); 113 } 114 115 result = tmp <= SystemUtils.JAVA_VERSION_FLOAT; 116 } 117 else { 118 if (debug) { 119 log.debug("Checking Java version is equal to: " + version); 120 } 121 122 float tmp = Float.parseFloat(version); 123 124 if (debug) { 125 log.debug("Requested version: " + tmp); 126 log.debug("JVM version: " + SystemUtils.JAVA_VERSION_FLOAT); 127 } 128 129 result = tmp == SystemUtils.JAVA_VERSION_FLOAT; 130 } 131 132 return result; 133 } 134 }