/*
* Copyright (c) 2003-2004, KNOPFLERFISH project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of the KNOPFLERFISH project nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS 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
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, 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.
*/
package org.knopflerfish.bundle.desktop.event;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Set;
import java.util.HashSet;
import java.util.Map;
import java.util.TreeSet;
import java.util.Iterator;
import org.knopflerfish.util.Text;
import org.osgi.framework.Bundle;
import org.osgi.framework.ServiceReference;
import org.osgi.service.event.Event;
import org.osgi.service.event.EventConstants;
import java.lang.reflect.Array;
public class Util {
public static String shortLocation(String s) {
int ix = s.lastIndexOf("/");
// handle eclipse extended location directory syntax
if(s.endsWith("/")) {
ix = s.lastIndexOf("/", ix - 1);
}
if(ix == -1) {
ix = s.lastIndexOf("\\");
}
if(ix != -1) {
return s.substring(ix + 1);
}
return s;
}
public static String shortName(Bundle b) {
if(b == null) {
return "";
}
String s = b.getLocation();
int ix = s.lastIndexOf("/");
if(ix == -1) ix = s.lastIndexOf("\\");
if(ix != -1) {
s = s.substring(ix + 1);
}
if(s.endsWith(".jar")) {
s = s.substring(0, s.length() - 4);
}
return s;
}
public static String getBundleName(Bundle b) {
String s = getHeader(b, "Bundle-Name", "");
if(s == null || "".equals(s) || s.startsWith("%")) {
s = shortLocation(b.getLocation());
}
return s;
}
public static String getHeader(Bundle b, String name) {
return getHeader(b, name, null);
}
public static String getHeader(Bundle b, String name, String def) {
String s = b != null
? (String)b.getHeaders().get(name)
: def;
return s;
}
public static int getId(Event e) {
return e.hashCode();
}
public static Bundle getBundle(Event e) {
Bundle b = (Bundle)e.getProperty("bundle");
return b;
}
public static Throwable getException(Event e) {
return (Throwable)e.getProperty("exception");
}
public static ServiceReference getServiceReference(Event e) {
return (ServiceReference)e.getProperty("service");
}
public static long getTime(Event e) {
return getNumber(e, "timestamp", new Long(0)).longValue();
}
public static long getBundleId(Event e) {
return getNumber(e, "bundle.id", new Long(-1)).longValue();
}
public static int getLevel(Event e) {
return getNumber(e, "log.level", new Integer(0)).intValue();
}
public static String getMessage(Event e) {
return getString(e, "message", "");
}
public static Number getNumber(Event e, String key, Number def) {
Object v = e.getProperty(key);
if(!(v instanceof Number)) {
return def;
}
return (Number)v;
}
public static String getString(Event e, String key, String def) {
Object v = e.getProperty(key);
return v == null ? def : v.toString();
}
static Set SKIP_KEYS = new HashSet() {{
add("log.entry");
add("event");
add(EventConstants.BUNDLE);
add(EventConstants.EXCEPTION);
add(EventConstants.SERVICE);
}};
public static String objToHTML(Object obj) {
if(obj == null) {
return "";
} else if(obj instanceof Map) {
return mapToHTML(obj);
} else if(obj.getClass().isArray()) {
return arrayToHTML(obj);
} else {
return fontify(obj.toString());
}
}
public static String mapToHTML(Object obj) {
if(obj == null) {
return "null";
}
StringBuffer sb = new StringBuffer();
Map map = (Map)obj;
sb.append("<table>");
for(Iterator it = map.keySet().iterator(); it.hasNext(); ) {
Object key = it.next();
Object val = map.get(key);
sb.append("<tr>");
sb.append("<td>");
sb.append(fontify(key.toString()));
sb.append("</td>");
sb.append("<td>");
sb.append(fontify(val.toString()));
sb.append("</td>");
sb.append("</tr>");
}
sb.append("</table>");
return sb.toString();
}
public static String arrayToHTML(Object obj) {
if(obj == null) {
return "null";
}
StringBuffer sb = new StringBuffer();
sb.append("[");
for(int i = 0; i < Array.getLength(obj); i++) {
if(i > 0) {
sb.append(", ");
}
Object val = Array.get(obj, i);
sb.append(objToHTML(val));
}
sb.append("]");
return sb.toString();
}
public static String toHTML(Event e) {
StringBuffer sb = new StringBuffer();
String[] names = e.getPropertyNames();
Set keys = new TreeSet();
for(int i = 0; i < names.length; i++) {
// if(!SKIP_KEYS.contains(names[i]))
{
keys.add(names[i]);
}
}
sb.append("<html>");
sb.append("<table border=0 width=\"100%\">\n");
sb.append("<tr bgcolor=\"#eeeeee\">");
sb.append("<td valign=top align=left bgcolor=\"#eeeeee\">" +
fontify(tf.format(new Date(getTime(e)))) + "</td>");
sb.append("<td valign=top align=right bgcolor=\"#eeeeee\">" +
fontify(e.getTopic()) + "</td>");
sb.append("</tr>");
sb.append("<tr bgcolor=\"#eeeeee\">");
sb.append("<td valign=top colspan=2 align=left bgcolor=\"#eeeeee\">" +
fontify(getMessage(e)) + "</td>");
sb.append("</tr>");
Throwable t = getException(e);
if(t != null) {
StringWriter w = new StringWriter();
t.printStackTrace(new PrintWriter(w));
sb.append("<td colspan=2>");
sb.append("<pre>");
sb.append(w.toString());
sb.append("</pre>");
sb.append("</td>");
}
for(Iterator it = keys.iterator(); it.hasNext();) {
String key = (String)it.next();
sb.append("<tr>");
sb.append("<td>");
sb.append(fontify(key));
sb.append("</td>");
sb.append("<td>");
Object val = e.getProperty(key);
if(SKIP_KEYS.contains(key)) {
sb.append(fontify("<i>" + val.getClass().getName() + "@" + val.hashCode() + "</i>"));
} else {
sb.append(objToHTML(val));
}
sb.append("</td>");
sb.append("</tr>");
}
sb.append("</tr>\n");
sb.append("</table>\n");
sb.append("</html>");
return sb.toString();
}
public static String toHTMLLogEntry(Event e) {
StringBuffer sb = new StringBuffer();
sb.append("<html>");
sb.append("<table border=0 width=\"100%\">");
sb.append("<tr bgcolor=\"#eeeeee\">");
sb.append("<td valign=top align=left bgcolor=\"#eeeeee\">" +
fontify(tf.format(new Date(getTime(e)))) + "</td>");
sb.append("<td colspan=2 valign=top align=right bgcolor=\"#eeeeee\">" +
fontify(levelString(getLevel(e))) + "</td>");
sb.append("</tr>");
sb.append("<tr>");
sb.append("<td width=\"100%\" colspan=3>");
sb.append(fontify(getMessage(e)));
sb.append("</td>");
sb.append("</tr>");
Throwable t = getException(e);
if(t != null) {
sb.append("<tr bgcolor=\"#eeeeee\">");
sb.append("<td colspan=3 align=left bgcolor=\"#eeeeee\">" +
fontify("Exception"));
sb.append("</td>");
sb.append("</tr>");
sb.append("<tr>");
sb.append("<td colspan=3>");
StringWriter w = new StringWriter();
t.printStackTrace(new PrintWriter(w));
sb.append(fontify(Text.replace(w.toString(), "\n", "<br>")));
sb.append("</td>");
sb.append("</tr>");
}
sb.append("</table>");
sb.append("</font>\n");
sb.append("</html>");
return sb.toString();
}
static public String fontify(String s) {
return fontify(s, "-2");
}
static public String fontify(String s, String size) {
if(s == null) {
return "";
}
return "<font size=\"" + size + "\" face=\"Verdana, Arial, Helvetica, sans-serif\">" + s + "</font>";
}
public static String toString(Event e) {
String topic = e.getTopic();
if(topic.startsWith("org/osgi/service/log/LogEntry")) {
return toStringLogEntry(e);
} else {
return e.toString();
}
}
public static String toStringLogEntry(Event e) {
String s =
"Time: " + tf.format(new Date(getTime(e))) + "\n" +
"Level: " + levelString(getLevel(e)) + "\n" +
"Message: " + getMessage(e) + "\n";
Throwable t = getException(e);
if(t != null) {
StringWriter w = new StringWriter();
t.printStackTrace(new PrintWriter(w));
s = s + w.toString();
}
return s;
}
static SimpleDateFormat tf = new SimpleDateFormat("MMM dd HH:mm:ss ");
static String[] levels = {
"error",
"warning",
"info",
"debug",
};
public static String levelString(int n) {
try {
return levels[n-1];
} catch (Exception e) {
return "Unknown:" + n;
}
}
public static StringBuffer pad(StringBuffer sb, int n) {
while(sb.length() < n) sb.append(" ");
return sb;
}
}