com.google.gwt.logging.client.SystemLogHandler.java Source code

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Here is the source code for com.google.gwt.logging.client.SystemLogHandler.java

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/*
 * 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.Formatter;
import java.util.logging.Handler;
import java.util.logging.Level;
import java.util.logging.LogRecord;

import com.google.gwt.core.client.GWT;

/**
 * A Handler that prints logs to System.out or System.err.
 */
public class SystemLogHandler extends Handler {
    public SystemLogHandler() {
        this(new TextLogFormatter(true), Level.ALL);
    }

    public SystemLogHandler(Formatter formatter, Level level) {
        setFormatter(formatter);
        setLevel(level);
    }

    @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.WARNING.intValue()) {
            System.out.println(msg);
        } else {
            System.err.println(msg);
        }
    }

    private boolean isSupported() {
        return !GWT.isScript();
    }
}