init
This commit is contained in:
983
java/org/apache/jasper/runtime/JspRuntimeLibrary.java
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983
java/org/apache/jasper/runtime/JspRuntimeLibrary.java
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.jasper.runtime;
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import java.beans.PropertyEditor;
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import java.beans.PropertyEditorManager;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.lang.reflect.Method;
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import java.util.Enumeration;
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import javax.servlet.RequestDispatcher;
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import javax.servlet.ServletException;
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import javax.servlet.ServletRequest;
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import javax.servlet.ServletResponse;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.jsp.JspException;
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import javax.servlet.jsp.JspWriter;
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import javax.servlet.jsp.PageContext;
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import javax.servlet.jsp.tagext.BodyContent;
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import javax.servlet.jsp.tagext.BodyTag;
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import javax.servlet.jsp.tagext.Tag;
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import org.apache.jasper.JasperException;
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import org.apache.jasper.compiler.Localizer;
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import org.apache.juli.logging.Log;
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import org.apache.juli.logging.LogFactory;
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import org.apache.tomcat.InstanceManager;
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/**
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* Bunch of util methods that are used by code generated for useBean,
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* getProperty and setProperty.
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*
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* The __begin, __end stuff is there so that the JSP engine can
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* actually parse this file and inline them if people don't want
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* runtime dependencies on this class. However, I'm not sure if that
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* works so well right now. It got forgotten at some point. -akv
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*
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* @author Mandar Raje
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* @author Shawn Bayern
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*/
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public class JspRuntimeLibrary {
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/**
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* Returns the value of the javax.servlet.error.exception request
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* attribute value, if present, otherwise the value of the
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* javax.servlet.jsp.jspException request attribute value.
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*
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* This method is called at the beginning of the generated servlet code
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* for a JSP error page, when the "exception" implicit scripting language
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* variable is initialized.
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* @param request The Servlet request
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* @return the throwable in the error attribute if any
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*/
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public static Throwable getThrowable(ServletRequest request) {
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Throwable error = (Throwable) request.getAttribute(
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RequestDispatcher.ERROR_EXCEPTION);
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if (error == null) {
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error = (Throwable) request.getAttribute(PageContext.EXCEPTION);
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if (error != null) {
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/*
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* The only place that sets JSP_EXCEPTION is
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* PageContextImpl.handlePageException(). It really should set
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* SERVLET_EXCEPTION, but that would interfere with the
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* ErrorReportValve. Therefore, if JSP_EXCEPTION is set, we
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* need to set SERVLET_EXCEPTION.
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*/
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request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, error);
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}
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}
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return error;
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}
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public static boolean coerceToBoolean(String s) {
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if (s == null || s.length() == 0)
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return false;
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else
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return Boolean.parseBoolean(s);
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}
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public static byte coerceToByte(String s) {
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if (s == null || s.length() == 0)
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return (byte) 0;
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else
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return Byte.parseByte(s);
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}
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public static char coerceToChar(String s) {
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if (s == null || s.length() == 0) {
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return (char) 0;
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} else {
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return s.charAt(0);
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}
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}
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public static double coerceToDouble(String s) {
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if (s == null || s.length() == 0)
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return 0;
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else
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return Double.parseDouble(s);
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}
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public static float coerceToFloat(String s) {
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if (s == null || s.length() == 0)
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return 0;
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else
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return Float.parseFloat(s);
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}
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public static int coerceToInt(String s) {
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if (s == null || s.length() == 0)
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return 0;
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else
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return Integer.parseInt(s);
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}
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public static short coerceToShort(String s) {
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if (s == null || s.length() == 0)
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return (short) 0;
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else
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return Short.parseShort(s);
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}
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public static long coerceToLong(String s) {
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if (s == null || s.length() == 0)
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return 0;
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else
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return Long.parseLong(s);
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}
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public static Object coerce(String s, Class<?> target) {
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boolean isNullOrEmpty = (s == null || s.length() == 0);
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if (target == Boolean.class) {
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if (isNullOrEmpty) {
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s = "false";
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}
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return Boolean.valueOf(s);
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} else if (target == Byte.class) {
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if (isNullOrEmpty)
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return Byte.valueOf((byte) 0);
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else
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return Byte.valueOf(s);
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} else if (target == Character.class) {
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if (isNullOrEmpty)
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return Character.valueOf((char) 0);
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else {
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@SuppressWarnings("null")
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Character result = Character.valueOf(s.charAt(0));
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return result;
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}
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} else if (target == Double.class) {
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if (isNullOrEmpty)
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return Double.valueOf(0);
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else
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return Double.valueOf(s);
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} else if (target == Float.class) {
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if (isNullOrEmpty)
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return Float.valueOf(0);
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else
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return Float.valueOf(s);
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} else if (target == Integer.class) {
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if (isNullOrEmpty)
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return Integer.valueOf(0);
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else
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return Integer.valueOf(s);
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} else if (target == Short.class) {
|
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if (isNullOrEmpty)
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return Short.valueOf((short) 0);
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else
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return Short.valueOf(s);
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} else if (target == Long.class) {
|
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if (isNullOrEmpty)
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return Long.valueOf(0);
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else
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return Long.valueOf(s);
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} else {
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return null;
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}
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}
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// __begin convertMethod
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public static Object convert(String propertyName, String s, Class<?> t,
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Class<?> propertyEditorClass)
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throws JasperException
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{
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try {
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if (s == null) {
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if (t.equals(Boolean.class) || t.equals(Boolean.TYPE))
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s = "false";
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else
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return null;
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}
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if (propertyEditorClass != null) {
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return getValueFromBeanInfoPropertyEditor(
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t, propertyName, s, propertyEditorClass);
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} else if ( t.equals(Boolean.class) || t.equals(Boolean.TYPE) ) {
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if (s.equalsIgnoreCase("on") || s.equalsIgnoreCase("true"))
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s = "true";
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else
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s = "false";
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return Boolean.valueOf(s);
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} else if ( t.equals(Byte.class) || t.equals(Byte.TYPE) ) {
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return Byte.valueOf(s);
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} else if (t.equals(Character.class) || t.equals(Character.TYPE)) {
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return s.length() > 0 ? Character.valueOf(s.charAt(0)) : null;
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} else if ( t.equals(Short.class) || t.equals(Short.TYPE) ) {
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return Short.valueOf(s);
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} else if ( t.equals(Integer.class) || t.equals(Integer.TYPE) ) {
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return Integer.valueOf(s);
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} else if ( t.equals(Float.class) || t.equals(Float.TYPE) ) {
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return Float.valueOf(s);
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} else if ( t.equals(Long.class) || t.equals(Long.TYPE) ) {
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return Long.valueOf(s);
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} else if ( t.equals(Double.class) || t.equals(Double.TYPE) ) {
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return Double.valueOf(s);
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} else if ( t.equals(String.class) ) {
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return s;
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} else if ( t.equals(java.io.File.class) ) {
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return new java.io.File(s);
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} else if (t.getName().equals("java.lang.Object")) {
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return new Object[] {s};
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} else {
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return getValueFromPropertyEditorManager(
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t, propertyName, s);
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}
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} catch (Exception ex) {
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throw new JasperException(ex);
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}
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}
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// __end convertMethod
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// __begin introspectMethod
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public static void introspect(Object bean, ServletRequest request)
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throws JasperException
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{
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Enumeration<String> e = request.getParameterNames();
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while ( e.hasMoreElements() ) {
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String name = e.nextElement();
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String value = request.getParameter(name);
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introspecthelper(bean, name, value, request, name, true);
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}
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}
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// __end introspectMethod
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// __begin introspecthelperMethod
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public static void introspecthelper(Object bean, String prop,
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String value, ServletRequest request,
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String param, boolean ignoreMethodNF)
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throws JasperException {
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Method method = null;
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Class<?> type = null;
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Class<?> propertyEditorClass = null;
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try {
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java.beans.BeanInfo info
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= java.beans.Introspector.getBeanInfo(bean.getClass());
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if ( info != null ) {
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java.beans.PropertyDescriptor pd[]
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= info.getPropertyDescriptors();
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for (int i = 0 ; i < pd.length ; i++) {
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if ( pd[i].getName().equals(prop) ) {
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method = pd[i].getWriteMethod();
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type = pd[i].getPropertyType();
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propertyEditorClass = pd[i].getPropertyEditorClass();
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break;
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}
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}
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||||
}
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if (method != null && type != null) {
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if (type.isArray()) {
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if (request == null) {
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throw new JasperException(
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Localizer.getMessage("jsp.error.beans.setproperty.noindexset"));
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}
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Class<?> t = type.getComponentType();
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String[] values = request.getParameterValues(param);
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//XXX Please check.
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if(values == null) return;
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if(t.equals(String.class)) {
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method.invoke(bean, new Object[] { values });
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} else {
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createTypedArray (prop, bean, method, values, t,
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propertyEditorClass);
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}
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} else {
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if(value == null || (param != null && value.equals(""))) return;
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Object oval = convert(prop, value, type, propertyEditorClass);
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if ( oval != null )
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method.invoke(bean, new Object[] { oval });
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}
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}
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} catch (Exception ex) {
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Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
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ExceptionUtils.handleThrowable(thr);
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throw new JasperException(ex);
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||||
}
|
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if (!ignoreMethodNF && (method == null)) {
|
||||
if (type == null) {
|
||||
throw new JasperException(
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Localizer.getMessage("jsp.error.beans.noproperty",
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||||
prop,
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bean.getClass().getName()));
|
||||
} else {
|
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throw new JasperException(
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Localizer.getMessage("jsp.error.beans.nomethod.setproperty",
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||||
prop,
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type.getName(),
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||||
bean.getClass().getName()));
|
||||
}
|
||||
}
|
||||
}
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// __end introspecthelperMethod
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//-------------------------------------------------------------------
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// functions to convert builtin Java data types to string.
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//-------------------------------------------------------------------
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// __begin toStringMethod
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public static String toString(Object o) {
|
||||
return String.valueOf(o);
|
||||
}
|
||||
|
||||
public static String toString(byte b) {
|
||||
return Byte.toString(b);
|
||||
}
|
||||
|
||||
public static String toString(boolean b) {
|
||||
return Boolean.toString(b);
|
||||
}
|
||||
|
||||
public static String toString(short s) {
|
||||
return Short.toString(s);
|
||||
}
|
||||
|
||||
public static String toString(int i) {
|
||||
return Integer.toString(i);
|
||||
}
|
||||
|
||||
public static String toString(float f) {
|
||||
return Float.toString(f);
|
||||
}
|
||||
|
||||
public static String toString(long l) {
|
||||
return Long.toString(l);
|
||||
}
|
||||
|
||||
public static String toString(double d) {
|
||||
return Double.toString(d);
|
||||
}
|
||||
|
||||
public static String toString(char c) {
|
||||
return Character.toString(c);
|
||||
}
|
||||
// __end toStringMethod
|
||||
|
||||
|
||||
/**
|
||||
* Create a typed array.
|
||||
* This is a special case where params are passed through
|
||||
* the request and the property is indexed.
|
||||
* @param propertyName The property name
|
||||
* @param bean The bean
|
||||
* @param method The method
|
||||
* @param values Array values
|
||||
* @param t The class
|
||||
* @param propertyEditorClass The editor for the property
|
||||
* @throws JasperException An error occurred
|
||||
*/
|
||||
public static void createTypedArray(String propertyName,
|
||||
Object bean,
|
||||
Method method,
|
||||
String[] values,
|
||||
Class<?> t,
|
||||
Class<?> propertyEditorClass)
|
||||
throws JasperException {
|
||||
|
||||
try {
|
||||
if (propertyEditorClass != null) {
|
||||
Object[] tmpval = new Integer[values.length];
|
||||
for (int i=0; i<values.length; i++) {
|
||||
tmpval[i] = getValueFromBeanInfoPropertyEditor(
|
||||
t, propertyName, values[i], propertyEditorClass);
|
||||
}
|
||||
method.invoke (bean, new Object[] {tmpval});
|
||||
} else if (t.equals(Integer.class)) {
|
||||
Integer []tmpval = new Integer[values.length];
|
||||
for (int i = 0 ; i < values.length; i++)
|
||||
tmpval[i] = Integer.valueOf(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.valueOf(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]);
|
||||
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.valueOf(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.valueOf(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]);
|
||||
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]);
|
||||
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] = Character.valueOf(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.parseBoolean(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] = 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.parseDouble(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] = Float.parseFloat(values[i]);
|
||||
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});
|
||||
} else {
|
||||
Object[] tmpval = new Integer[values.length];
|
||||
for (int i=0; i<values.length; i++) {
|
||||
tmpval[i] =
|
||||
getValueFromPropertyEditorManager(
|
||||
t, propertyName, values[i]);
|
||||
}
|
||||
method.invoke (bean, new Object[] {tmpval});
|
||||
}
|
||||
} catch (RuntimeException | ReflectiveOperationException ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException ("error in invoking method", ex);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* 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;
|
||||
}
|
||||
|
||||
StringBuilder escStringBuilder = new StringBuilder();
|
||||
String shellSpChars = "&;`'\"|*?~<>^()[]{}$\\\n";
|
||||
|
||||
for (int index = 0; index < unescString.length(); index++) {
|
||||
char nextChar = unescString.charAt(index);
|
||||
|
||||
if (shellSpChars.indexOf(nextChar) != -1) {
|
||||
escStringBuilder.append('\\');
|
||||
}
|
||||
|
||||
escStringBuilder.append(nextChar);
|
||||
}
|
||||
return escStringBuilder.toString();
|
||||
}
|
||||
|
||||
// __begin lookupReadMethodMethod
|
||||
public static Object handleGetProperty(Object o, String prop)
|
||||
throws JasperException {
|
||||
if (o == null) {
|
||||
throw new JasperException(
|
||||
Localizer.getMessage("jsp.error.beans.nullbean"));
|
||||
}
|
||||
Object value = null;
|
||||
try {
|
||||
Method method = getReadMethod(o.getClass(), prop);
|
||||
value = method.invoke(o, (Object[]) null);
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException (ex);
|
||||
}
|
||||
return value;
|
||||
}
|
||||
// __end lookupReadMethodMethod
|
||||
|
||||
// handles <jsp:setProperty> with EL expression for 'value' attribute
|
||||
public static void handleSetPropertyExpression(Object bean,
|
||||
String prop, String expression, PageContext pageContext,
|
||||
ProtectedFunctionMapper functionMapper )
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] {
|
||||
PageContextImpl.proprietaryEvaluate(
|
||||
expression,
|
||||
method.getParameterTypes()[0],
|
||||
pageContext,
|
||||
functionMapper)
|
||||
});
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
Object value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { value });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
int value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Integer.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
short value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Short.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
long value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Long.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
double value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Double.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
float value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Float.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
char value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Character.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
byte value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Byte.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static void handleSetProperty(Object bean, String prop,
|
||||
boolean value)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
Method method = getWriteMethod(bean.getClass(), prop);
|
||||
method.invoke(bean, new Object[] { Boolean.valueOf(value) });
|
||||
} catch (Exception ex) {
|
||||
Throwable thr = ExceptionUtils.unwrapInvocationTargetException(ex);
|
||||
ExceptionUtils.handleThrowable(thr);
|
||||
throw new JasperException(ex);
|
||||
}
|
||||
}
|
||||
|
||||
public static Method getWriteMethod(Class<?> beanClass, String prop)
|
||||
throws JasperException {
|
||||
Method method = null;
|
||||
Class<?> type = null;
|
||||
try {
|
||||
java.beans.BeanInfo info = java.beans.Introspector.getBeanInfo(beanClass);
|
||||
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;
|
||||
}
|
||||
}
|
||||
} catch (Exception ex) {
|
||||
throw new JasperException (ex);
|
||||
}
|
||||
if (method == null) {
|
||||
if (type == null) {
|
||||
throw new JasperException(Localizer.getMessage(
|
||||
"jsp.error.beans.noproperty", prop, beanClass.getName()));
|
||||
} else {
|
||||
throw new JasperException(Localizer.getMessage(
|
||||
"jsp.error.beans.nomethod.setproperty",
|
||||
prop, type.getName(), beanClass.getName()));
|
||||
}
|
||||
}
|
||||
return method;
|
||||
}
|
||||
|
||||
public static Method getReadMethod(Class<?> beanClass, String prop)
|
||||
throws JasperException {
|
||||
|
||||
Method method = null;
|
||||
Class<?> type = null;
|
||||
try {
|
||||
java.beans.BeanInfo info = java.beans.Introspector.getBeanInfo(beanClass);
|
||||
java.beans.PropertyDescriptor pd[] = info.getPropertyDescriptors();
|
||||
for (int i = 0 ; i < pd.length ; i++) {
|
||||
if (pd[i].getName().equals(prop)) {
|
||||
method = pd[i].getReadMethod();
|
||||
type = pd[i].getPropertyType();
|
||||
break;
|
||||
}
|
||||
}
|
||||
} catch (Exception ex) {
|
||||
throw new JasperException (ex);
|
||||
}
|
||||
if (method == null) {
|
||||
if (type == null) {
|
||||
throw new JasperException(Localizer.getMessage(
|
||||
"jsp.error.beans.noproperty", prop, beanClass.getName()));
|
||||
} else {
|
||||
throw new JasperException(Localizer.getMessage(
|
||||
"jsp.error.beans.nomethod", prop, beanClass.getName()));
|
||||
}
|
||||
}
|
||||
|
||||
return method;
|
||||
}
|
||||
|
||||
//*********************************************************************
|
||||
// PropertyEditor Support
|
||||
|
||||
public static Object getValueFromBeanInfoPropertyEditor(
|
||||
Class<?> attrClass, String attrName, String attrValue,
|
||||
Class<?> propertyEditorClass)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
PropertyEditor pe = (PropertyEditor)propertyEditorClass.getConstructor().newInstance();
|
||||
pe.setAsText(attrValue);
|
||||
return pe.getValue();
|
||||
} catch (Exception ex) {
|
||||
throw new JasperException(
|
||||
Localizer.getMessage("jsp.error.beans.property.conversion",
|
||||
attrValue, attrClass.getName(), attrName,
|
||||
ex.getMessage()));
|
||||
}
|
||||
}
|
||||
|
||||
public static Object getValueFromPropertyEditorManager(
|
||||
Class<?> attrClass, String attrName, String attrValue)
|
||||
throws JasperException
|
||||
{
|
||||
try {
|
||||
PropertyEditor propEditor =
|
||||
PropertyEditorManager.findEditor(attrClass);
|
||||
if (propEditor != null) {
|
||||
propEditor.setAsText(attrValue);
|
||||
return propEditor.getValue();
|
||||
} else {
|
||||
throw new IllegalArgumentException(
|
||||
Localizer.getMessage("jsp.error.beans.propertyeditor.notregistered"));
|
||||
}
|
||||
} catch (IllegalArgumentException ex) {
|
||||
throw new JasperException(
|
||||
Localizer.getMessage("jsp.error.beans.property.conversion",
|
||||
attrValue, attrClass.getName(), attrName,
|
||||
ex.getMessage()));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// ************************************************************************
|
||||
// General Purpose Runtime Methods
|
||||
// ************************************************************************
|
||||
|
||||
|
||||
/**
|
||||
* Convert a possibly relative resource path into a context-relative
|
||||
* resource path that starts with a '/'.
|
||||
*
|
||||
* @param request The servlet request we are processing
|
||||
* @param relativePath The possibly relative resource path
|
||||
* @return an absolute path
|
||||
*/
|
||||
public static String getContextRelativePath(ServletRequest request,
|
||||
String relativePath) {
|
||||
|
||||
if (relativePath.startsWith("/"))
|
||||
return relativePath;
|
||||
if (!(request instanceof HttpServletRequest))
|
||||
return relativePath;
|
||||
HttpServletRequest hrequest = (HttpServletRequest) request;
|
||||
String uri = (String) request.getAttribute(
|
||||
RequestDispatcher.INCLUDE_SERVLET_PATH);
|
||||
if (uri != null) {
|
||||
String pathInfo = (String)
|
||||
request.getAttribute(RequestDispatcher.INCLUDE_PATH_INFO);
|
||||
if (pathInfo == null) {
|
||||
if (uri.lastIndexOf('/') >= 0)
|
||||
uri = uri.substring(0, uri.lastIndexOf('/'));
|
||||
}
|
||||
}
|
||||
else {
|
||||
uri = hrequest.getServletPath();
|
||||
if (uri.lastIndexOf('/') >= 0)
|
||||
uri = uri.substring(0, uri.lastIndexOf('/'));
|
||||
}
|
||||
return uri + '/' + relativePath;
|
||||
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Perform a RequestDispatcher.include() operation, with optional flushing
|
||||
* of the response beforehand.
|
||||
*
|
||||
* @param request The servlet request we are processing
|
||||
* @param response The servlet response we are processing
|
||||
* @param relativePath The relative path of the resource to be included
|
||||
* @param out The Writer to whom we are currently writing
|
||||
* @param flush Should we flush before the include is processed?
|
||||
*
|
||||
* @exception IOException if thrown by the included servlet
|
||||
* @exception ServletException if thrown by the included servlet
|
||||
*/
|
||||
public static void include(ServletRequest request,
|
||||
ServletResponse response,
|
||||
String relativePath,
|
||||
JspWriter out,
|
||||
boolean flush)
|
||||
throws IOException, ServletException {
|
||||
|
||||
if (flush && !(out instanceof BodyContent))
|
||||
out.flush();
|
||||
|
||||
// FIXME - It is tempting to use request.getRequestDispatcher() to
|
||||
// resolve a relative path directly, but Catalina currently does not
|
||||
// take into account whether the caller is inside a RequestDispatcher
|
||||
// include or not. Whether Catalina *should* take that into account
|
||||
// is a spec issue currently under review. In the mean time,
|
||||
// replicate Jasper's previous behavior
|
||||
|
||||
String resourcePath = getContextRelativePath(request, relativePath);
|
||||
RequestDispatcher rd = request.getRequestDispatcher(resourcePath);
|
||||
|
||||
rd.include(request,
|
||||
new ServletResponseWrapperInclude(response, out));
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* URL encodes a string, based on the supplied character encoding.
|
||||
* This performs the same function as java.next.URLEncode.encode
|
||||
* in J2SDK1.4, and should be removed if the only platform supported
|
||||
* is 1.4 or higher.
|
||||
* @param s The String to be URL encoded.
|
||||
* @param enc The character encoding
|
||||
* @return The URL encoded String
|
||||
*/
|
||||
public static String URLEncode(String s, String enc) {
|
||||
|
||||
if (s == null) {
|
||||
return "null";
|
||||
}
|
||||
|
||||
if (enc == null) {
|
||||
enc = "ISO-8859-1"; // The default request encoding
|
||||
}
|
||||
|
||||
StringBuilder out = new StringBuilder(s.length());
|
||||
ByteArrayOutputStream buf = new ByteArrayOutputStream();
|
||||
OutputStreamWriter writer = null;
|
||||
try {
|
||||
writer = new OutputStreamWriter(buf, enc);
|
||||
} catch (java.io.UnsupportedEncodingException ex) {
|
||||
// Use the default encoding?
|
||||
writer = new OutputStreamWriter(buf);
|
||||
}
|
||||
|
||||
for (int i = 0; i < s.length(); i++) {
|
||||
int c = s.charAt(i);
|
||||
if (c == ' ') {
|
||||
out.append('+');
|
||||
} else if (isSafeChar(c)) {
|
||||
out.append((char)c);
|
||||
} else {
|
||||
// convert to external encoding before hex conversion
|
||||
try {
|
||||
writer.write(c);
|
||||
writer.flush();
|
||||
} catch(IOException e) {
|
||||
buf.reset();
|
||||
continue;
|
||||
}
|
||||
byte[] ba = buf.toByteArray();
|
||||
for (int j = 0; j < ba.length; j++) {
|
||||
out.append('%');
|
||||
// Converting each byte in the buffer
|
||||
out.append(Character.forDigit((ba[j]>>4) & 0xf, 16));
|
||||
out.append(Character.forDigit(ba[j] & 0xf, 16));
|
||||
}
|
||||
buf.reset();
|
||||
}
|
||||
}
|
||||
return out.toString();
|
||||
}
|
||||
|
||||
private static boolean isSafeChar(int c) {
|
||||
if (c >= 'a' && c <= 'z') {
|
||||
return true;
|
||||
}
|
||||
if (c >= 'A' && c <= 'Z') {
|
||||
return true;
|
||||
}
|
||||
if (c >= '0' && c <= '9') {
|
||||
return true;
|
||||
}
|
||||
if (c == '-' || c == '_' || c == '.' || c == '!' ||
|
||||
c == '~' || c == '*' || c == '\'' || c == '(' || c == ')') {
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
|
||||
public static JspWriter startBufferedBody(PageContext pageContext, BodyTag tag)
|
||||
throws JspException {
|
||||
BodyContent out = pageContext.pushBody();
|
||||
tag.setBodyContent(out);
|
||||
tag.doInitBody();
|
||||
return out;
|
||||
}
|
||||
|
||||
|
||||
public static void releaseTag(Tag tag, InstanceManager instanceManager, boolean reused) {
|
||||
// Caller ensures pool is non-null if reuse is true
|
||||
if (!reused) {
|
||||
releaseTag(tag, instanceManager);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
protected static void releaseTag(Tag tag, InstanceManager instanceManager) {
|
||||
try {
|
||||
tag.release();
|
||||
} catch (Throwable t) {
|
||||
ExceptionUtils.handleThrowable(t);
|
||||
Log log = LogFactory.getLog(JspRuntimeLibrary.class);
|
||||
log.warn(Localizer.getMessage("jsp.warning.tagRelease", tag.getClass().getName()), t);
|
||||
}
|
||||
try {
|
||||
instanceManager.destroyInstance(tag);
|
||||
} catch (Exception e) {
|
||||
Throwable t = ExceptionUtils.unwrapInvocationTargetException(e);
|
||||
ExceptionUtils.handleThrowable(t);
|
||||
Log log = LogFactory.getLog(JspRuntimeLibrary.class);
|
||||
log.warn(Localizer.getMessage("jsp.warning.tagPreDestroy", tag.getClass().getName()), t);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user