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//ViewLog_p.java
//-----------------------
//part of the AnomicHTTPD caching proxy
//(C) by Michael Peter Christen; mc@yacy.net
//first published on http://www.anomic.de
//Frankfurt, Germany, 2004
//
//This File is contributed by Alexander Schier
//
// $LastChangedDate$
// $LastChangedRevision$
// $LastChangedBy$
//
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; either version 2 of the License, or
//(at your option) any later version.
//
//This program is distributed in the hope that it will be useful,
//but WITHOUT ANY WARRANTY; without even the implied warranty of
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
//GNU General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//You must compile this file with
//javac -classpath .:../classes ViewLog_p.java
//if the shell's current path is HTROOT
import java.util.logging.Handler;
import java.util.logging.Logger;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import net.yacy.cora.protocol.RequestHeader;
import net.yacy.cora.util.ConcurrentLog;
import net.yacy.kelondro.logging.GuiHandler;
import net.yacy.kelondro.logging.LogalizerHandler;
import net.yacy.server.serverObjects;
import net.yacy.server.serverSwitch;
public class ViewLog_p {
public static serverObjects respond(@SuppressWarnings("unused") final RequestHeader header, final serverObjects post, @SuppressWarnings("unused") final serverSwitch env) {
final serverObjects prop = new serverObjects();
String[] log = new String[0];
boolean reversed = true;
boolean json = false;
int maxlines = 1000, lines = 1000;
/* Usually a regex like this would make no sense, ".*" would be
* sufficient, but ".*.*" makes it a little bit more convenient
* for the user to input regexes like ".*FOO.*" in the HTML
* interface.
*/
String filter = ".*.*";
if (post != null){
reversed = (post.containsKey("mode") && "reversed".equals(post.get("mode")));
json = post.containsKey("json");
if(post.containsKey("lines")){
lines = post.getInt("lines", lines);
}
if(post.containsKey("filter")){
filter = post.get("filter");
}
}
final Logger logger = Logger.getLogger("");
final Handler[] handlers = logger.getHandlers();
boolean displaySubmenu = false;
for (final Handler handler : handlers) {
if (handler instanceof GuiHandler) {
maxlines = ((GuiHandler)handler).getSize();
if (lines > maxlines) lines = maxlines;
log = ((GuiHandler)handler).getLogLines(reversed,lines);
} else if (handler instanceof LogalizerHandler) {
displaySubmenu = true;
}
}
prop.put("submenu", displaySubmenu ? "1" : "0");
prop.put("reverseChecked", reversed ? "1" : "0");
prop.put("lines", lines);
prop.put("maxlines",maxlines);
prop.putHTML("filter", filter);
// trying to compile the regular expression filter expression
Matcher filterMatcher = null;
try {
final Pattern filterPattern = Pattern.compile(filter,Pattern.MULTILINE);
filterMatcher = filterPattern.matcher("");
} catch (final PatternSyntaxException e) {
ConcurrentLog.logException(e);
}
int level = 0;
int lc = 0;
for (final String logLine : log) {
if (logLine == null) break;
final String nextLogLine = logLine.trim();
if (filterMatcher != null) {
filterMatcher.reset(nextLogLine);
if (!filterMatcher.find()) continue;
}
if (nextLogLine.startsWith("E ")) {
level = 4;
} else if (nextLogLine.startsWith("W ")) {
level = 3;
} else if (nextLogLine.startsWith("S ")) {
level = 2;
} else if (nextLogLine.startsWith("I ")) {
level = 1;
} else if (nextLogLine.startsWith("D ")) {
level = 0;
}
prop.put("log_" + lc + "_level", level);
if (json) {
prop.putJSON("log_" + lc + "_line", nextLogLine);
} else {
prop.putHTML("log_" + lc + "_line", nextLogLine);
}
lc++;
}
prop.put("log", lc);
// return rewrite properties
return prop;
}
}
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