Source Code Cross Referenced for SecurityFactory.java in  » ERP-CRM-Financial » SourceTap-CRM » org » ofbiz » security » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » ERP CRM Financial » SourceTap CRM » org.ofbiz.security 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $Id: SecurityFactory.java,v 1.3 2003/08/19 20:54:12 jonesde Exp $
003:         *
004:         * Copyright (c) 2001, 2002 The Open For Business Project - www.ofbiz.org
005:         *
006:         * Permission is hereby granted, free of charge, to any person obtaining a
007:         * copy of this software and associated documentation files (the "Software"),
008:         * to deal in the Software without restriction, including without limitation
009:         * the rights to use, copy, modify, merge, publish, distribute, sublicense,
010:         * and/or sell copies of the Software, and to permit persons to whom the
011:         * Software is furnished to do so, subject to the following conditions:
012:         *
013:         * The above copyright notice and this permission notice shall be included
014:         * in all copies or substantial portions of the Software.
015:         *
016:         * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
017:         * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
018:         * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
019:         * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
020:         * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
021:         * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
022:         * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
023:         *
024:         */
025:        package org.ofbiz.security;
026:
027:        import org.ofbiz.base.config.GenericConfigException;
028:        import org.ofbiz.base.config.SecurityConfigUtil;
029:        import org.ofbiz.base.util.Debug;
030:        import org.ofbiz.base.util.UtilProperties;
031:        import org.ofbiz.base.util.UtilValidate;
032:        import org.ofbiz.entity.GenericDelegator;
033:        import org.w3c.dom.Element;
034:
035:        /**
036:         * <code>SecurityFactory</code>
037:         *
038:         * This Factory class returns an instance of a security implementation.
039:         *
040:         * Setting the security implementation className is done in security.xml.
041:         * If no customiz security name is given, the default implementation will be used (OFBizSecurity)
042:         *
043:         * @author     <a href="mailto:hermanns@aixcept.de">Rainer Hermanns</a>
044:         * @author     <a href="mailto:jaz@ofbiz.org">Andy Zeneski</a>
045:         * @version    $Revision: 1.3 $
046:         * @since      2.0
047:         */
048:        public class SecurityFactory {
049:
050:            public static final String module = SecurityFactory.class.getName();
051:            public static final String DEFAULT_SECURITY = "org.ofbiz.security.OFBizSecurity";
052:
053:            private static String securityName = null;
054:            private static Element rootElement = null;
055:            private static SecurityConfigUtil.SecurityInfo securityInfo = null;
056:
057:            /**
058:             * Returns an instance of a Security implementation as defined in the security.xml by defined name
059:             * in security.properties.
060:             *
061:             * @param delegator the generic delegator
062:             * @return instance of security implementation (default: OFBizSecurity)
063:             */
064:            public static Security getInstance(GenericDelegator delegator)
065:                    throws SecurityConfigurationException {
066:                Security security = null;
067:
068:                // Make securityName a singleton
069:                if (securityName == null) {
070:                    String _securityName = UtilProperties.getPropertyValue(
071:                            "security.properties", "security.context");
072:                    securityName = _securityName;
073:                }
074:
075:                if (Debug.verboseOn())
076:                    Debug
077:                            .logVerbose(
078:                                    "[SecurityFactory.getInstance] Security implementation context name from security.properties: "
079:                                            + securityName, module);
080:
081:                synchronized (SecurityFactory.class) {
082:                    try {
083:                        ClassLoader loader = Thread.currentThread()
084:                                .getContextClassLoader();
085:                        Class c = loader
086:                                .loadClass(getSecurityClass(securityName));
087:                        security = (Security) c.newInstance();
088:                        security.setDelegator(delegator);
089:                    } catch (ClassNotFoundException cnf) {
090:                        throw new SecurityConfigurationException(
091:                                "Cannot load security implementation class",
092:                                cnf);
093:                    } catch (InstantiationException ie) {
094:                        throw new SecurityConfigurationException(
095:                                "Cannot get instance of the security implementation",
096:                                ie);
097:                    } catch (IllegalAccessException iae) {
098:                        throw new SecurityConfigurationException(iae
099:                                .getMessage(), iae);
100:                    }
101:                }
102:
103:                if (Debug.verboseOn())
104:                    Debug
105:                            .logVerbose(
106:                                    "[SecurityFactory.getInstance] Security implementation successfully loaded!!!",
107:                                    module);
108:
109:                return security;
110:            }
111:
112:            /**
113:             * Returns the class name of  a custom Security implementation.
114:             * The default class name (org.ofbiz.security.OFBizSecurity) may be overridden by a customized implementation
115:             * class name in security.xml.
116:             *
117:             * @param securityName the security context name to be looked up
118:             * @return className the class name of the security implementatin
119:             * @throws SecurityConfigurationException
120:             */
121:            private static String getSecurityClass(String securityName)
122:                    throws SecurityConfigurationException {
123:                String className = null;
124:
125:                if (Debug.verboseOn())
126:                    Debug.logVerbose(
127:                            "[SecurityFactory.getSecurityClass] Security implementation context name: "
128:                                    + securityName, module);
129:
130:                // Only load rootElement again, if not yet loaded (singleton)
131:                if (rootElement == null) {
132:                    try {
133:                        SecurityConfigUtil.getXmlDocument();
134:                        Element _rootElement = SecurityConfigUtil
135:                                .getXmlRootElement();
136:
137:                        rootElement = _rootElement;
138:                    } catch (GenericConfigException e) {
139:                        Debug
140:                                .logError(
141:                                        e,
142:                                        "Error getting Security Config XML root element",
143:                                        module);
144:                        return null;
145:                    }
146:                }
147:
148:                if (securityInfo == null) {
149:                    SecurityConfigUtil.SecurityInfo _securityInfo = SecurityConfigUtil
150:                            .getSecurityInfo(securityName);
151:
152:                    // Make sure, that the security conetxt name is defined and present
153:                    if (_securityInfo == null) {
154:                        throw new SecurityConfigurationException(
155:                                "ERROR: no security definition was found with the name "
156:                                        + securityName + " in security.xml");
157:                    }
158:                    securityInfo = _securityInfo;
159:                }
160:
161:                // This is the default implementation and uses org.ofbiz.security.OFBizSecurity
162:                if (UtilValidate.isEmpty(securityInfo.className)) {
163:                    className = DEFAULT_SECURITY;
164:                } else {
165:                    // Use a customized security
166:                    className = securityInfo.className;
167:                }
168:
169:                if (Debug.verboseOn())
170:                    Debug.logVerbose(
171:                            "[SecurityFactory.getSecurity] Security implementation "
172:                                    + className + " for security name "
173:                                    + securityName + " successfully loaded!!!",
174:                            module);
175:                return className;
176:            }
177:        }
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