defaultdebugpagegenerator.java
来自「反向的AJAX。最大的特性是我们成为反向的Ajax。DWR1.x允许你用java」· Java 代码 · 共 513 行 · 第 1/2 页
JAVA
513 行
/* * Copyright 2005 Joe Walker * * 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.directwebremoting.impl;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.lang.reflect.Method;import java.util.Arrays;import java.util.Collection;import java.util.Collections;import java.util.HashMap;import java.util.Iterator;import java.util.Map;import org.directwebremoting.extend.AccessControl;import org.directwebremoting.extend.ConverterManager;import org.directwebremoting.extend.Creator;import org.directwebremoting.extend.CreatorManager;import org.directwebremoting.extend.DebugPageGenerator;import org.directwebremoting.extend.DwrConstants;import org.directwebremoting.servlet.EngineHandler;import org.directwebremoting.servlet.PathConstants;import org.directwebremoting.servlet.UtilHandler;import org.directwebremoting.util.JavascriptUtil;import org.directwebremoting.util.LocalUtil;import org.directwebremoting.util.Logger;import org.directwebremoting.util.Messages;/** * A default implementation of TestPageGenerator * @author Joe Walker [joe at getahead dot ltd dot uk] */public class DefaultDebugPageGenerator implements DebugPageGenerator{ /* (non-Javadoc) * @see org.directwebremoting.DebugPageGenerator#generateIndexPage(java.lang.String) */ public String generateIndexPage(final String root) throws SecurityException { if (!creatorManager.isDebug()) { log.warn("Failed attempt to access test pages outside of debug mode. Set the debug init-parameter to true to enable."); throw new SecurityException(Messages.getString("DefaultDebugPageGenerator.AccessDenied")); } StringBuffer buffer = new StringBuffer(); buffer.append("<html>\n"); buffer.append("<head><title>DWR Test Index</title></head>\n"); buffer.append("<body>\n"); buffer.append("<h2>Classes known to DWR:</h2>\n"); buffer.append("<ul>\n"); for (Iterator it = creatorManager.getCreatorNames().iterator(); it.hasNext();) { String name = (String) it.next(); Creator creator = creatorManager.getCreator(name); buffer.append("<li><a href='"); buffer.append(root); buffer.append(testHandlerUrl); buffer.append(name); buffer.append("'>"); buffer.append(name); buffer.append("</a> ("); buffer.append(creator.getType().getName()); buffer.append(")</li>\n"); } buffer.append("</ul>\n"); buffer.append("</body></html>\n"); return buffer.toString(); } /* (non-Javadoc) * @see org.directwebremoting.DebugPageGenerator#generateTestPage(java.lang.String, java.lang.String) */ public String generateTestPage(final String root, final String scriptName) throws SecurityException { if (!creatorManager.isDebug()) { log.warn("Failed attempt to access test pages outside of debug mode. Set the debug init-parameter to true to enable."); throw new SecurityException(Messages.getString("DefaultAccessControl.AccessDenied")); } String interfaceURL = root + interfaceHandlerUrl + scriptName + PathConstants.EXTENSION_JS; String engineURL = root + engineHandlerUrl; String utilURL = root + utilHandlerUrl; String proxyInterfaceURL = PATH_UP + interfaceHandlerUrl + scriptName + PathConstants.EXTENSION_JS; String proxyEngineURL = PATH_UP + engineHandlerUrl; String proxyUtilURL = PATH_UP + utilHandlerUrl; Creator creator = creatorManager.getCreator(scriptName); Method[] methods = creator.getType().getMethods(); StringBuffer buffer = new StringBuffer(); buffer.append("<html>\n"); buffer.append("<head>\n"); buffer.append(" <title>DWR Test</title>\n"); buffer.append(" <!-- These paths use .. so that they still work behind a path mapping proxy. The fully qualified version is more cut and paste friendly. -->\n"); buffer.append(" <script type='text/javascript' src='" + proxyInterfaceURL + "'></script>\n"); buffer.append(" <script type='text/javascript' src='" + proxyEngineURL + "'></script>\n"); buffer.append(" <script type='text/javascript' src='" + proxyUtilURL + "'></script>\n"); buffer.append(" <script type='text/javascript'>\n"); buffer.append(" function objectEval(text)\n"); buffer.append(" {\n"); buffer.append(" // eval() breaks when we use it to get an object using the { a:42, b:'x' }\n"); buffer.append(" // syntax because it thinks that { and } surround a block and not an object\n"); buffer.append(" // So we wrap it in an array and extract the first element to get around\n"); buffer.append(" // this.\n"); buffer.append(" // This code is only needed for interpreting the parameter input fields,\n"); buffer.append(" // so you can ignore this for normal use.\n"); buffer.append(" // The regex = [start of line][whitespace]{[stuff]}[whitespace][end of line]\n"); buffer.append(" text = text.replace(/\\n/g, ' ');\n"); buffer.append(" text = text.replace(/\\r/g, ' ');\n"); buffer.append(" if (text.match(/^\\s*\\{.*\\}\\s*$/))\n"); buffer.append(" {\n"); buffer.append(" text = '[' + text + '][0]';\n"); buffer.append(" }\n"); buffer.append(" return eval(text);\n"); buffer.append(" }\n"); buffer.append(" </script>\n"); buffer.append(" <style>\n"); buffer.append(" input.itext { font-size: smaller; background: #E4E4E4; border: 0; }\n"); buffer.append(" input.ibutton { font-size: xx-small; border: 1px outset; margin: 0px; padding: 0px; }\n"); buffer.append(" span.reply { background: #ffffdd; white-space: pre; }\n"); buffer.append(" span.warning { font-size: smaller; color: red; }\n"); buffer.append(" </style>\n"); buffer.append("</head>\n"); buffer.append("<body onload='dwr.util.useLoadingMessage()'>\n"); buffer.append(BLANK); buffer.append("<h2>Methods For: " + scriptName + " (" + creator.getType().getName() + ")</h2>\n"); buffer.append("<p>To use this class in your javascript you will need the following script includes:</p>\n"); buffer.append("<pre>\n"); buffer.append(" <script type='text/javascript' src='<a href='" + interfaceURL + "'>" + interfaceURL + "</a>'></script>\n"); buffer.append(" <script type='text/javascript' src='<a href='" + engineURL + "'>" + engineURL + "</a>'></script>\n"); buffer.append("</pre>\n"); buffer.append("<p>In addition there is an optional utility script:</p>\n"); buffer.append("<pre>\n"); buffer.append(" <script type='text/javascript' src='<a href='" + utilURL + "'>" + utilURL + "</a>'></script>\n"); buffer.append("</pre>\n"); buffer.append("<p>Replies from DWR are shown with a yellow background if they are simple or in an alert box otherwise.<br/>\n"); buffer.append("The inputs are evaluated as Javascript so strings must be quoted before execution.</p>\n"); buffer.append("<p>There are " + methods.length + " declared methods:</p><ul>\n"); for (int i = 0; i < methods.length; i++) { Method method = methods[i]; String methodName = method.getName(); // Is it on the list of banned names if (JavascriptUtil.isReservedWord(methodName)) { buffer.append(BLANK); buffer.append("<li style='color: #88A;'>" + methodName + "() is not available because it is a reserved word.</li>\n"); continue; } buffer.append(BLANK); buffer.append("<li>\n"); buffer.append(" " + methodName + '('); Class[] paramTypes = method.getParameterTypes(); for (int j = 0; j < paramTypes.length; j++) { Class paramType = paramTypes[j]; // The special type that we handle transparently if (LocalUtil.isServletClass(paramType)) { buffer.append("AUTO"); } else { String value = BLANK; if (paramType == String.class) { value = "\"\""; } else if (paramType == Boolean.class || paramType == Boolean.TYPE) { value = "true"; } else if (paramType == Integer.class || paramType == Integer.TYPE || paramType == Short.class || paramType == Short.TYPE || paramType == Long.class || paramType == Long.TYPE || paramType == Byte.class || paramType == Byte.TYPE) { value = "0"; } else if (paramType == Float.class || paramType == Float.TYPE || paramType == Double.class || paramType == Double.TYPE) { value = "0.0"; } else if (paramType.isArray() || Collection.class.isAssignableFrom(paramType)) { value = "[]"; } else if (Map.class.isAssignableFrom(paramType)) { value = "{}"; } buffer.append(" <input class='itext' type='text' size='10' value='" + value + "' id='p" + i + j + "' title='Will be converted to: " + paramType.getName() + "'/>"); } buffer.append(j == paramTypes.length - 1 ? BLANK : ", \n"); } buffer.append(" );\n"); String onclick = scriptName + '.' + methodName + "("; for (int j = 0; j < paramTypes.length; j++) { if (!LocalUtil.isServletClass(paramTypes[j])) { onclick += "objectEval($(\"p" + i + j + "\").value), "; } } onclick += "reply" + i + ");"; buffer.append(" <input class='ibutton' type='button' onclick='" + onclick + "' value='Execute' title='Calls " + scriptName + '.' + methodName + "(). View source for details.'/>\n"); buffer.append(" <script type='text/javascript'>\n"); buffer.append(" var reply" + i + " = function(data)\n"); buffer.append(" {\n"); buffer.append(" if (data != null && typeof data == 'object') alert(dwr.util.toDescriptiveString(data, 2));\n"); buffer.append(" else dwr.util.setValue('d" + i + "', dwr.util.toDescriptiveString(data, 1));\n"); buffer.append(" }\n"); buffer.append(" </script>\n"); buffer.append(" <span id='d" + i + "' class='reply'></span>\n"); // Print a warning if this method is overloaded boolean overloaded = false; for (int j = 0; j < methods.length; j++) { if (j != i && methods[j].getName().equals(methodName)) { overloaded = true;⌨️ 快捷键说明
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