1 /* 2 * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.org.apache.xalan.internal.utils; 27 28 29 import com.sun.org.apache.xalan.internal.XalanConstants; 30 31 /** 32 * This class manages security related properties 33 * 34 */ 35 public final class FeatureManager extends FeaturePropertyBase { 36 37 /** 38 * States of the settings of a property, in the order: default value, value 39 * set by FEATURE_SECURE_PROCESSING, jaxp.properties file, jaxp system 40 * properties, and jaxp api properties 41 */ 42 public static enum State { 43 //this order reflects the overriding order 44 DEFAULT, FSP, JAXPDOTPROPERTIES, SYSTEMPROPERTY, APIPROPERTY 45 } 46 47 /** 48 * Xalan Features 49 */ 50 public static enum Feature { 51 ORACLE_ENABLE_EXTENSION_FUNCTION(XalanConstants.ORACLE_ENABLE_EXTENSION_FUNCTION, 52 "true"); 53 54 final String name; 55 final String defaultValue; 56 57 Feature(String name, String value) { 58 this.name = name; 59 this.defaultValue = value; 60 } 61 62 public boolean equalsName(String propertyName) { 63 return (propertyName == null) ? false : name.equals(propertyName); 64 } 65 66 String defaultValue() { 67 return defaultValue; 68 } 69 } 70 71 /** 72 * Default constructor. Establishes default values 73 */ 74 public FeatureManager() { 75 values = new String[Feature.values().length]; 76 for (Feature feature : Feature.values()) { 77 values[feature.ordinal()] = feature.defaultValue(); 78 } 79 //read system properties or jaxp.properties 80 readSystemProperties(); 81 } 82 83 84 /** 85 * Check if the feature is enabled 86 * @param feature name of the feature 87 * @return true if enabled, false otherwise 88 */ 89 public boolean isFeatureEnabled(Feature feature) { 90 return Boolean.parseBoolean(values[feature.ordinal()]); 91 } 92 93 /** 94 * Check if the feature is enabled 95 * @param propertyName name of the feature 96 * @return true if enabled, false otherwise 97 */ 98 public boolean isFeatureEnabled(String propertyName) { 99 return Boolean.parseBoolean(values[getIndex(propertyName)]); 100 } 101 102 /** 103 * Get the index by property name 104 * @param propertyName property name 105 * @return the index of the property if found; return -1 if not 106 */ 107 public int getIndex(String propertyName){ 108 for (Feature feature : Feature.values()) { 109 if (feature.equalsName(propertyName)) { 110 return feature.ordinal(); 111 } 112 } 113 return -1; 114 } 115 116 /** 117 * Read from system properties, or those in jaxp.properties 118 */ 119 private void readSystemProperties() { 120 getSystemProperty(Feature.ORACLE_ENABLE_EXTENSION_FUNCTION, 121 XalanConstants.SP_ORACLE_ENABLE_EXTENSION_FUNCTION); 122 } 123 124 }