148 lines
6.2 KiB
Java
148 lines
6.2 KiB
Java
/*
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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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* $Header:$
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*/
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package org.apache.beehive.netui.tags.html;
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import org.apache.beehive.netui.util.internal.InternalStringBuilder;
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import org.apache.beehive.netui.pageflow.internal.AdapterManager;
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import org.apache.beehive.netui.tags.AbstractSimpleTag;
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import org.apache.beehive.netui.util.HtmlExceptionFormatter;
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import org.apache.struts.Globals;
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import org.apache.struts.util.ResponseUtils;
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import javax.servlet.ServletRequest;
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import javax.servlet.jsp.JspException;
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import javax.servlet.jsp.PageContext;
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/**
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* Renders formatted exception data, as found in the Request with the key:
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* <code>org.apache.struts.action.Action.EXCEPTION_KEY</code>. Exceptions ignores its
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* body content.
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* @jsptagref.tagdescription Renders exception messages and stack traces inline on the JSP page.
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* @example In this sample, the <netui:exceptions> tag will output the exception title and message,
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* but not the stacktraces.
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* <pre><netui:exceptions showMessage="true" showStackTrace="false" /></pre>
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* @netui:tag name="exceptions" body-content="empty" description="Displays formatted exception messages."
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*/
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public class Exceptions extends AbstractSimpleTag
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{
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private boolean _showMessage = true;
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private boolean _showStackTrace = false;
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private boolean _showDevModeStackTrace = false;
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/**
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* Return the name of the Tag.
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*/
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public String getTagName()
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{
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return "Exceptions";
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}
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/**
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* Set whether or not the exception message is being shown.
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* @param showMessage true or false depending on the setting desired
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* @jsptagref.attributedescription Boolean. Determines whether or not the exception message is shown. Defaults to <code>true</code>
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* @jsptagref.databindable false
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* @jsptagref.attributesyntaxvalue <i>boolean_showMessage</i>
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* @netui:attribute required="false" rtexprvalue="true" type="boolean"
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* description="Determines whether or not the exception message is shown. Defaults to true."
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*/
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public void setShowMessage(boolean showMessage)
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{
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_showMessage = showMessage;
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}
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/**
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* Set whether or not the stack trace is being shown.
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* @param showStackTrace true or false depending on the setting desired
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* @jsptagref.attributedescription Boolean. Determines whether or not the stack trace is shown. Defaults to <code>false</code>
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* @jsptagref.databindable false
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* @jsptagref.attributesyntaxvalue <i>boolean_showStackTrace</i>
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* @netui:attribute required="false" rtexprvalue="true" type="boolean"
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* description="Determines whether or not the stack trace is shown. Defaults to false."
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*/
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public void setShowStackTrace(boolean showStackTrace)
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{
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_showStackTrace = showStackTrace;
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}
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/**
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* Set whether or not the stack trace is being shown.
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* @param showStackTrace true or false depending on the setting desired
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* @jsptagref.attributedescription Boolean. Determine if the stack trace is display only when dev mode
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* is on. Default is <code>true</code>.
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* @jsptagref.databindable false
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* @jsptagref.attributesyntaxvalue <i>boolean_showDevModeStackTrace</i>
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* @netui:attribute required="false" rtexprvalue="true" type="boolean"
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* description="Determine if the stack trace is display only when dev mode is on. Default is true."
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*/
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public void setShowDevModeStackTrace(boolean showStackTrace)
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{
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_showDevModeStackTrace = showStackTrace;
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}
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/**
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* Render the exception text based on the display attributes.
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* @throws JspException if a JSP exception has occurred
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*/
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public void doTag()
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throws JspException
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{
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// First look for the exception in the pageflow/struts request attribute. If it's not there,
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// look for it in the request attribute the container provides for web.xml-configured error
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// pages.
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InternalStringBuilder results = new InternalStringBuilder(128);
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PageContext pageContext = getPageContext();
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Throwable e = (Throwable) pageContext.getAttribute(Globals.EXCEPTION_KEY, PageContext.REQUEST_SCOPE);
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if (e == null) {
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ServletRequest req = pageContext.getRequest();
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e = (Throwable) req.getAttribute("javax.servlet.error.exception");
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if (e == null) {
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e = (Throwable) req.getAttribute("javax.servlet.jsp.jspException");
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}
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}
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if (!_showStackTrace && _showDevModeStackTrace) {
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boolean devMode = !AdapterManager.getServletContainerAdapter(pageContext.getServletContext()).isInProductionMode();
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if (devMode)
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_showStackTrace = true;
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}
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if (e != null) {
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if (_showMessage) {
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String msg = e.getMessage();
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// if we have message lets output the exception name and the name of the
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if ((msg != null) && (msg.length() > 0)) {
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if (!_showStackTrace)
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msg = e.getClass().getName() + ": " + msg;
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results.append(HtmlExceptionFormatter.format(msg, e, _showStackTrace));
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}
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else {
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results.append(HtmlExceptionFormatter.format(e.getClass().getName(), e, _showStackTrace));
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}
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}
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else {
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results.append(HtmlExceptionFormatter.format(null, e, _showStackTrace));
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}
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ResponseUtils.write(pageContext, results.toString());
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}
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}
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}
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