psmith 2003/09/02 22:39:14 Added: src/java/org/apache/log4j/chainsaw EventDetailLayout.java Log: A new Layout class used by Chainsaw to render the Tooltip and Event detail text. The formatting code has been moved from the Table Model class. Revision Changes Path 1.1 jakarta-log4j/src/java/org/apache/log4j/chainsaw/EventDetailLayout.java Index: EventDetailLayout.java =================================================================== /* * ============================================================================ * The Apache Software License, Version 1.1 * ============================================================================ * * Copyright (C) 1999 The Apache Software Foundation. All rights reserved. * * Redistribution and use in source and binary forms, with or without modifica- * tion, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The end-user documentation included with the redistribution, if any, must * include the following acknowledgment: "This product includes software * developed by the Apache Software Foundation (http://www.apache.org/)." * Alternately, this acknowledgment may appear in the software itself, if * and wherever such third-party acknowledgments normally appear. * * 4. The names "log4j" and "Apache Software Foundation" must not be used to * endorse or promote products derived from this software without prior * written permission. For written permission, please contact * [EMAIL PROTECTED] * * 5. Products derived from this software may not be called "Apache", nor may * "Apache" appear in their name, without prior written permission of the * Apache Software Foundation. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU- * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software consists of voluntary contributions made by many individuals * on behalf of the Apache Software Foundation. For more information on the * Apache Software Foundation, please see <http://www.apache.org/>. * */ package org.apache.log4j.chainsaw; import org.apache.log4j.Layout; import org.apache.log4j.spi.LoggingEvent; import java.io.IOException; import java.io.Writer; import java.util.Iterator; import java.util.List; import java.util.Vector; /** * This layout is used for formatting HTML text for use inside * the Chainsaw Event Detail Panel, and the tooltip used * when mouse-over on a particular log event row * * @author Paul Smith <[EMAIL PROTECTED]> */ class EventDetailLayout extends Layout { /* (non-Javadoc) * @see org.apache.log4j.Layout#getFooter() */ public String getFooter() { return ""; } /* (non-Javadoc) * @see org.apache.log4j.Layout#getHeader() */ public String getHeader() { return ""; } /* (non-Javadoc) * @see org.apache.log4j.Layout#format(java.io.Writer, org.apache.log4j.spi.LoggingEvent) */ public void format(Writer output, LoggingEvent event) throws IOException { boolean pastFirst = false; output.write("<html><body><table cellspacing=0 cellpadding=0>"); List columnNames = ChainsawColumns.getColumnsNames(); Vector v = ChainsawAppenderHandler.convert(event); /** * we need to add the ID property from the event */ v.add(event.getProperty(ChainsawConstants.LOG4J_ID_KEY)); // ListIterator iter = displayFilter.getDetailColumns().listIterator(); Iterator iter = columnNames.iterator(); String column = null; int index = -1; while (iter.hasNext()) { column = (String) iter.next(); index = columnNames.indexOf(column); if (index > -1) { if (pastFirst) { output.write("</td></tr>"); } output.write("<tr><td valign=\"top\"><b>"); output.write(column); output.write(": </b></td><td>"); if (index<v.size()) { Object o = v.get(index); if (o != null) { output.write(escape(o.toString())); } else { output.write("{null}"); } }else { // output.write("Invalid column " + column + " (index=" + index + ")"); } pastFirst = true; } } output.write("</table></body></html>"); } /** * Escape <, > & and " as their entities. It is very * dumb about & handling. * @param aStr the String to escape. * @return the escaped String */ String escape(String string) { if (string == null) { return null; } final StringBuffer buf = new StringBuffer(); for (int i = 0; i < string.length(); i++) { char c = string.charAt(i); switch (c) { case '<': buf.append("<"); break; case '>': buf.append(">"); break; case '\"': buf.append("""); break; case '&': buf.append("&"); break; default: buf.append(c); break; } } return buf.toString(); } /* (non-Javadoc) * @see org.apache.log4j.Layout#ignoresThrowable() */ public boolean ignoresThrowable() { return false; } /* (non-Javadoc) * @see org.apache.log4j.spi.OptionHandler#activateOptions() */ public void activateOptions() { } }
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