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The source code/* * Copyright 1999-2004 The Apache Software Foundation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.jasper.runtime; import java.lang.reflect.Method; import java.util.Enumeration; import javax.servlet.ServletRequest; import org.apache.jasper.Constants; import org.apache.jasper.JasperException; /** * Bunch of util methods that are used by code generated for useBean, * getProperty and setProperty. * * The __begin, __end stuff is there so that the JSP engine can * actually parse this file and inline them if people don't want * runtime dependencies on this class. However, I'm not sure if that * works so well right now. It got forgotten at some point. -akv * * @author Mandar Raje */ public class JspRuntimeLibrary { // __begin convertMethod public static Object convert(String s, Class t) throws JasperException { try { if (s == null) { if (t.equals(Boolean.class) || t.equals(Boolean.TYPE)) s = "false"; else return null; } if ( t.equals(Boolean.class) || t.equals(Boolean.TYPE) ) { if (s.equalsIgnoreCase("on") || s.equalsIgnoreCase("true")) s = "true"; else s = "false"; return new Boolean(s); } else if ( t.equals(Byte.class) || t.equals(Byte.TYPE) ) { return new Byte(s); } else if (t.equals(Character.class) || t.equals(Character.TYPE)) { return s.length() > 0 ? new Character(s.charAt(0)) : null; } else if ( t.equals(Short.class) || t.equals(Short.TYPE) ) { return new Short(s); } else if ( t.equals(Integer.class) || t.equals(Integer.TYPE) ) { return new Integer(s); } else if ( t.equals(Float.class) || t.equals(Float.TYPE) ) { return new Float(s); } else if ( t.equals(Long.class) || t.equals(Long.TYPE) ) { return new Long(s); } else if ( t.equals(Double.class) || t.equals(Double.TYPE) ) { return new Double(s); } else if ( t.equals(String.class) ) { return s; } else if ( t.equals(java.io.File.class) ) { return new java.io.File(s); } } catch (Exception ex) { throw new JasperException (ex); } return s; } // __end convertMethod // __begin introspectMethod public static void introspect(Object bean, ServletRequest request) throws JasperException { Enumeration e = request.getParameterNames(); while ( e.hasMoreElements() ) { String name = (String) e.nextElement(); String value = request.getParameter(name); introspecthelper(bean, name, value, request, name, true); } } // __end introspectMethod // __begin introspecthelperMethod public static void introspecthelper(Object bean, String prop, String value, ServletRequest request, String param, boolean ignoreMethodNF) throws JasperException { java.lang.reflect.Method method = null; Class type = null; try { java.beans.BeanInfo info = java.beans.Introspector.getBeanInfo(bean.getClass()); if ( info != null ) { java.beans.PropertyDescriptor pd[] = info.getPropertyDescriptors(); for (int i = 0 ; i < pd.length ; i++) { if ( pd[i].getName().equals(prop) ) { method = pd[i].getWriteMethod(); type = pd[i].getPropertyType(); break; } } } if ( method != null ) { if (type.isArray()) { if (request == null) { throw new JasperException(Constants.getString( "jsp.error.beans.setproperty.noindexset", new Object[] {})); }; Class t = type.getComponentType(); String[] values = request.getParameterValues(param); //XXX Please check. if(values == null) return; if(t.equals(String.class)) { method.invoke(bean, new Object[] { values }); } else { Object tmpval = null; createTypedArray (bean, method, values, t); } } else { if(value == null || (param != null && value.equals(""))) return; Object oval = convert(value, type); if ( oval != null ) method.invoke(bean, new Object[] { oval }); } } } catch (Exception ex) { throw new JasperException (ex); } if (!ignoreMethodNF && (method == null)) { if (type == null) { throw new JasperException(Constants.getString( "jsp.error.beans.noproperty", new Object[] {prop, bean.getClass().getName()})); } else { throw new JasperException(Constants.getString( "jsp.error.beans.nomethod.setproperty", new Object[] {prop, bean.getClass().getName()})); } } } // __end introspecthelperMethod //------------------------------------------------------------------- // functions to convert builtin Java data types to string. //------------------------------------------------------------------- // __begin toStringMethod public static String toString(Object o) { return (o == null) ? "" : o.toString(); } public static String toString(byte b) { return new Byte(b).toString(); } public static String toString(boolean b) { return new Boolean(b).toString(); } public static String toString(short s) { return new Short(s).toString(); } public static String toString(int i) { return new Integer(i).toString(); } public static String toString(float f) { return new Float(f).toString(); } public static String toString(long l) { return new Long(l).toString(); } public static String toString(double d) { return new Double(d).toString(); } public static String toString(char c) { return new Character(c).toString(); } // __end toStringMethod /** * Create a typed array. * This is a special case where params are passed through * the request and the property is indexed. */ public static void createTypedArray (Object bean, Method method, String []values, Class t) throws JasperException { try { if (t.equals(Integer.class)) { Integer []tmpval = new Integer[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Integer (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Byte.class)) { Byte[] tmpval = new Byte[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Byte (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Boolean.class)) { Boolean[] tmpval = new Boolean[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Boolean (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Short.class)) { Short[] tmpval = new Short[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Short (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Long.class)) { Long[] tmpval = new Long[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Long (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Double.class)) { Double[] tmpval = new Double[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Double (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Float.class)) { Float[] tmpval = new Float[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Float (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(Character.class)) { Character[] tmpval = new Character[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = new Character(values[i].charAt(0)); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(int.class)) { int []tmpval = new int[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = Integer.parseInt (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(byte.class)) { byte[] tmpval = new byte[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = Byte.parseByte (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(boolean.class)) { boolean[] tmpval = new boolean[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = (Boolean.valueOf(values[i])).booleanValue(); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(short.class)) { short[] tmpval = new short[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = Short.parseShort (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(long.class)) { long[] tmpval = new long[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = Long.parseLong (values[i]); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(double.class)) { double[] tmpval = new double[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = Double.valueOf(values[i]).doubleValue(); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(float.class)) { float[] tmpval = new float[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = Float.valueOf(values[i]).floatValue(); method.invoke (bean, new Object[] {tmpval}); } else if (t.equals(char.class)) { char[] tmpval = new char[values.length]; for (int i = 0 ; i < values.length; i++) tmpval[i] = values[i].charAt(0); method.invoke (bean, new Object[] {tmpval}); } } catch (Exception ex) { throw new JasperException ("error in invoking method"); } } /** * Escape special shell characters. * @param unescString The string to shell-escape * @return The escaped shell string. */ public static String escapeQueryString(String unescString) { if ( unescString == null ) return null; String escString = ""; String shellSpChars = "&;`'\"|*?~<>^()[]{}$\\\n"; for(int index=0; index |
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