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/* * Copyright 1999-2005 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.cocoon.components.notification; import org.apache.cocoon.Constants; import org.apache.cocoon.xml.XMLUtils; import org.apache.commons.lang.StringEscapeUtils; import org.xml.sax.ContentHandler; import org.xml.sax.SAXException; import org.xml.sax.helpers.AttributesImpl; import java.io.IOException; import java.io.OutputStream; import java.util.Iterator; import java.util.Map; /** * Generates a representations of the specified Notifying Object. * * @author <a href="mailto:nicolaken@supereva.it">Nicola Ken Barozzi</a> * @author <a href="mailto:stefano@apache.org">Stefano Mazzocchi</a> * @version $Id: Notifier.java 164808 2005-04-26 16:07:03Z vgritsenko $ */ public class Notifier { /** * Generate notification information as a response. * The notification is directly written to the OutputStream. * @param n The <code>Notifying</code> object * @param outputStream The output stream the notification is written to * This could be <code>null</code>. */ public static void notify(Notifying n, OutputStream outputStream, String mimetype) throws IOException { //(NKB) FIXME should use error page templates, one per mime-type // currently uses hardcoded html, should be used only as last resort. notifyHTML(n, outputStream); } /** * Generate notification information as html. * The notification is directly written to the OutputStream. * @param n The <code>Notifying</code> object * @param outputStream The output stream the notification is written to * This could be <code>null</code>. */ private static void notifyHTML(Notifying n, OutputStream outputStream) throws IOException { if (outputStream == null) { return; } StringBuffer sb = new StringBuffer(); sb.append("<html><head><title>").append(n.getTitle()).append("</title>"); sb.append("<style><!--"); sb.append("body { background-color: white; color: black; font-family: verdana, helvetica, sanf serif;}"); sb.append( "h1 {color: #336699; margin: 0px 0px 20px 0px; border-width: 0px 0px 1px 0px; border-style: solid; border-color: #336699;}"); sb.append( "p.footer { color: #336699; border-width: 1px 0px 0px 0px; border-style: solid; border-color: #336699; }"); sb.append("span {color: #336699;}"); sb.append("pre {padding-left: 20px;}"); sb.append("a:link {font-weight: bold; color: #336699;}"); sb.append("a:visited {color: #336699; }"); sb.append("a:hover {color: #800000; background-color: #ffff80;}"); sb.append("a:active {color: #006666;}"); sb.append("--></style>"); sb.append("</head><body>"); sb.append("<h1>").append(StringEscapeUtils.escapeXml(n.getTitle())).append("</h1>"); sb.append("<p><span>Message:</span> ").append(StringEscapeUtils.escapeXml(n.getMessage())).append("</p>"); sb.append("<p><span>Description:</span> ").append(StringEscapeUtils.escapeXml(n.getDescription())) .append("</p>"); sb.append("<p><span>Sender:</span> ").append(StringEscapeUtils.escapeXml(n.getSender())).append("</p>"); sb.append("<p><span>Source:</span> ").append(StringEscapeUtils.escapeXml(n.getSource())).append("</p>"); Map extras = n.getExtraDescriptions(); for (Iterator i = extras.entrySet().iterator(); i.hasNext();) { Map.Entry me = (Map.Entry) i.next(); final String key = (String) me.getKey(); sb.append("<p><span>").append(key).append("</span><pre>") .append(StringEscapeUtils.escapeXml(String.valueOf(me.getValue()))).append("</pre></p>"); } sb.append("<p class='footer'><a href='http://cocoon.apache.org/'>").append(Constants.COMPLETE_NAME) .append("</p>"); sb.append("</body></html>"); outputStream.write(sb.toString().getBytes()); } /** * Generate notification information in XML format. */ public static void notify(Notifying n, ContentHandler ch, String mimetype) throws SAXException { final String PREFIX = Constants.ERROR_NAMESPACE_PREFIX; final String URI = Constants.ERROR_NAMESPACE_URI; // Start the document ch.startDocument(); ch.startPrefixMapping(PREFIX, URI); // Root element. AttributesImpl atts = new AttributesImpl(); atts.addAttribute(URI, "type", PREFIX + ":type", "CDATA", n.getType()); atts.addAttribute(URI, "sender", PREFIX + ":sender", "CDATA", n.getSender()); ch.startElement(URI, "notify", PREFIX + ":notify", atts); ch.startElement(URI, "title", PREFIX + ":title", new AttributesImpl()); ch.characters(n.getTitle().toCharArray(), 0, n.getTitle().length()); ch.endElement(URI, "title", PREFIX + ":title"); ch.startElement(URI, "source", PREFIX + ":source", new AttributesImpl()); ch.characters(n.getSource().toCharArray(), 0, n.getSource().length()); ch.endElement(URI, "source", PREFIX + ":source"); ch.startElement(URI, "message", PREFIX + ":message", new AttributesImpl()); if (n.getMessage() != null) { ch.characters(n.getMessage().toCharArray(), 0, n.getMessage().length()); } ch.endElement(URI, "message", PREFIX + ":message"); ch.startElement(URI, "description", PREFIX + ":description", XMLUtils.EMPTY_ATTRIBUTES); ch.characters(n.getDescription().toCharArray(), 0, n.getDescription().length()); ch.endElement(URI, "description", PREFIX + ":description"); Map extraDescriptions = n.getExtraDescriptions(); for (Iterator i = extraDescriptions.entrySet().iterator(); i.hasNext();) { final Map.Entry me = (Map.Entry) i.next(); String key = (String) me.getKey(); String value = String.valueOf(me.getValue()); atts = new AttributesImpl(); atts.addAttribute(URI, "description", PREFIX + ":description", "CDATA", key); ch.startElement(URI, "extra", PREFIX + ":extra", atts); ch.characters(value.toCharArray(), 0, value.length()); ch.endElement(URI, "extra", PREFIX + ":extra"); } // End root element. ch.endElement(URI, "notify", PREFIX + ":notify"); // End the document. ch.endPrefixMapping(PREFIX); ch.endDocument(); } }