List of usage examples for org.apache.commons.lang ClassUtils getClass
public static Class<?> getClass(String className) throws ClassNotFoundException
className using the current thread's context class loader. From source file:org.jamwiki.servlets.ServletUtil.java
/** * Validate that vital system properties, such as database connection * settings, have been specified properly. * //from w w w .j av a 2 s.c om * @param props * The property object to validate against. * @return A list of WikiMessage objects containing any errors encountered, or * an empty list if no errors are encountered. */ protected static List<WikiMessage> validateSystemSettings(Properties props) { List<WikiMessage> errors = new ArrayList<WikiMessage>(); // test directory permissions & existence // WikiMessage baseDirError = WikiUtil.validateDirectory(props // .getProperty(Environment.PROP_BASE_FILE_DIR)); // if (baseDirError != null) { // errors.add(baseDirError); // } // WikiMessage fullDirError = WikiUtil.validateDirectory(props // .getProperty(Environment.PROP_FILE_DIR_FULL_PATH)); // if (fullDirError != null) { // errors.add(fullDirError); // } // String classesDir = null; // try { // classesDir = Utilities.getClassLoaderRoot().getPath(); // WikiMessage classesDirError = WikiUtil.validateDirectory(classesDir); // if (classesDirError != null) { // errors.add(classesDirError); // } // } catch (FileNotFoundException e) { // errors.add(new WikiMessage("error.directorywrite", classesDir, e // .getMessage())); // } // test database // String driver = props.getProperty(Environment.PROP_DB_DRIVER); // String url = props.getProperty(Environment.PROP_DB_URL); // String userName = props.getProperty(Environment.PROP_DB_USERNAME); // String password = Encryption.getEncryptedProperty( // Environment.PROP_DB_PASSWORD, props); // try { // DatabaseConnection.testDatabase(driver, url, userName, password, false); // } catch (ClassNotFoundException e) { // logger.severe("Invalid database settings", e); // errors.add(new WikiMessage("error.databaseconnection", e.getMessage())); // } catch (SQLException e) { // logger.severe("Invalid database settings", e); // errors.add(new WikiMessage("error.databaseconnection", e.getMessage())); // } // verify valid parser class String parserClass = props.getProperty(Environment.PROP_PARSER_CLASS); String abstractParserClass = "org.jamwiki.parser.AbstractParser"; boolean validParser = (parserClass != null && !parserClass.equals(abstractParserClass)); if (validParser) { try { Class parent = ClassUtils.getClass(parserClass); Class child = ClassUtils.getClass(abstractParserClass); if (!child.isAssignableFrom(parent)) { validParser = false; } } catch (ClassNotFoundException e) { validParser = false; } } if (!validParser) { errors.add(new WikiMessage("error.parserclass", parserClass)); } return errors; }
From source file:org.jamwiki.utils.Utilities.java
/** * Given a String representation of a class name (for example, org.jamwiki.db.AnsiDataHandler) * return an instance of the class. The constructor for the class being instantiated must * not take any arguments./* www.j av a 2 s. c o m*/ * * @param className The name of the class being instantiated. * @return A Java Object representing an instance of the specified class. */ public static Object instantiateClass(String className) { if (StringUtils.isBlank(className)) { throw new IllegalArgumentException("Cannot call instantiateClass with an empty class name"); } logger.fine("Instantiating class: " + className); try { Class clazz = ClassUtils.getClass(className); Class[] parameterTypes = new Class[0]; Constructor constructor = clazz.getConstructor(parameterTypes); Object[] initArgs = new Object[0]; return constructor.newInstance(initArgs); } catch (ClassNotFoundException e) { throw new IllegalStateException("Invalid class name specified: " + className, e); } catch (NoSuchMethodException e) { throw new IllegalStateException("Specified class does not have a valid constructor: " + className, e); } catch (IllegalAccessException e) { throw new IllegalStateException("Specified class does not have a valid constructor: " + className, e); } catch (InvocationTargetException e) { throw new IllegalStateException("Specified class does not have a valid constructor: " + className, e); } catch (InstantiationException e) { throw new IllegalStateException("Specified class could not be instantiated: " + className, e); } }
From source file:org.mandarax.dsl.util.DefaultResolver.java
private Class tryToLoadPrimitive(String name) throws ResolverException { try {/* w ww . j a va2 s .c om*/ return ClassUtils.getClass(name); } catch (Exception x) { return null; } }
From source file:org.netbeans.orm.converter.compiler.VariableDefSnippet.java
public Class getWrapper(String premitive) throws ClassNotFoundException { return ClassUtils.primitiveToWrapper(ClassUtils.getClass(premitive)); }
From source file:org.xmlactions.action.config.ExecContext.java
public BaseAction getActionClass(String actionMapName, String actionKey) throws ClassNotFoundException, InstantiationException, IllegalAccessException { BaseAction action = null;/*from w w w . j av a2 s.c o m*/ String className = getAction(actionMapName, actionKey); if (StringUtils.isNotEmpty(className)) { Class<?> clas = ClassUtils.getClass(className); Object bean = clas.newInstance(); if (!(bean instanceof BaseAction)) { throw new InstantiationException("class [" + bean.getClass().getName() + " must extend [" + BaseAction.class.getName() + "]"); } action = (BaseAction) bean; } else { log.info("no action class found for [" + actionMapName + "][" + actionKey + "]"); // throw new IllegalArgumentException("no action class found for [" + actionMapName + "][" + actionKey + "]"); } return action; }
From source file:org.xmlactions.action.config.ExecContext.java
/** * Returns a class that matches the xml action name. This differs from * the getActionClass in that it does not require the class to extend BaseAction. * @param actionMapName/* w w w . ja v a2s .c o m*/ * @param actionKey * @return matching class * @throws ClassNotFoundException * @throws InstantiationException * @throws IllegalAccessException */ public Object getClassAsObject(String actionMapName, String actionKey) throws ClassNotFoundException, InstantiationException, IllegalAccessException { Object bean = null; String className = getAction(actionMapName, actionKey); if (StringUtils.isNotEmpty(className)) { Class<?> clas = ClassUtils.getClass(className); bean = clas.newInstance(); } else { throw new IllegalArgumentException( "no action class found for [" + actionMapName + "][" + actionKey + "]"); } return bean; }
From source file:org.xmlactions.common.reflection.BeanConstruct.java
public Object getBean(String beanName) { Class<?> clas;/*from w w w. j ava 2 s . c o m*/ Object bean; try { clas = ClassUtils.getClass(beanName); bean = clas.newInstance(); } catch (Exception e) { throw new IllegalArgumentException("No bean created for [" + beanName + "]", e); } return bean; }
From source file:org.xmlactions.mapping.xml_to_bean.Bean.java
public Class<?> getAsClass() throws ClassNotFoundException { Class<?> _clas = ClassUtils.getClass(clas); return _clas; }
From source file:org.xmlactions.pager.actions.CodeAction.java
public String execute(IExecContext execContext) throws Exception { String methodName = getMethod(); String clas = getClas();/* w w w . j ava2 s .c om*/ String className = (String) execContext.getAction(null, clas); if (className == null) { className = clas; } Validate.notEmpty(methodName); Validate.notEmpty(className, "no property value set for [" + clas + "]"); Class<?> _clas = ClassUtils.getClass(className); Object bean = _clas.newInstance(); Object[] objs = new Object[getParams().size()]; for (int i = 0; i < getParams().size(); i++) { objs[i] = getParams().get(i).getResolvedValue(execContext); } try { Object obj = MethodUtils.invokeMethod(bean, methodName, objs); return (obj != null ? obj.toString() : null); } catch (Exception ex) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < getParams().size(); i++) { sb.append("\nParam[" + i + "] '" + getParams().get(i).getValue() + "' = " + objs[i]); } String params = sb.toString(); if (StringUtils.isEmpty(params)) { params = "no params"; } throw new Exception("Unable to invoke [" + clas + "." + methodName + "]" + params, ex); } }