com.google.gwt.logging.client.ConsoleLogHandler Maven / Gradle / Ivy
/*
* Copyright 2010 Google Inc.
*
* 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 com.google.gwt.logging.client;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;
/**
* A Handler that prints logs to the window.console.
*
* Note we are consciously using 'window' rather than '$wnd' to avoid issues
* similar to http://code.google.com/p/fbug/issues/detail?id=2914
*/
public class ConsoleLogHandler extends Handler {
public ConsoleLogHandler() {
setFormatter(new TextLogFormatter(true));
setLevel(Level.ALL);
}
@Override
public void close() {
// No action needed
}
@Override
public void flush() {
// No action needed
}
@Override
public void publish(LogRecord record) {
if (!isSupported() || !isLoggable(record)) {
return;
}
String msg = getFormatter().format(record);
int val = record.getLevel().intValue();
if (val >= Level.SEVERE.intValue()) {
error(msg);
} else if (val >= Level.WARNING.intValue()) {
warn(msg);
} else if (val >= Level.INFO.intValue()) {
info(msg);
} else {
log(msg);
}
}
private native boolean isSupported() /*-{
return ((window.console != null) &&
// See note in FirebugLogHandler
(window.console.firebug == null));
}-*/;
private native void error(String message) /*-{
window.console.error(message);
}-*/;
private native void warn(String message) /*-{
window.console.warn(message);
}-*/;
private native void info(String message) /*-{
window.console.info(message);
}-*/;
private native void log(String message) /*-{
window.console.log(message);
}-*/;
}