com.googlecode.flyway.ant.AntLogAppender Maven / Gradle / Ivy

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/**
 * Copyright (C) 2010-2012 the original author or authors.
 *
 * 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.googlecode.flyway.ant;

import org.apache.log4j.AppenderSkeleton;
import org.apache.log4j.Level;
import org.apache.log4j.spi.LoggingEvent;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.Task;

public class AntLogAppender extends AppenderSkeleton {

    private static Project antProject;

    public static void startTaskLog(Project project) {
        antProject = project;
    }

    public static void endTaskLog() {
        antProject = null;
    }

    protected void append(LoggingEvent event) {
        if (antProject == null) {
            return;
        }
        Level level = event.getLevel();

        String text = this.layout.format(event);
        Throwable throwable = null;
        if (event.getThrowableInformation() != null) {
            throwable = event.getThrowableInformation().getThrowable();
        }

        Task task = antProject.getThreadTask(Thread.currentThread());

        if (Level.TRACE.equals(level)) {
            antProject.log(task, text, throwable, Project.MSG_DEBUG);
        } else if (Level.DEBUG.equals(level)) {
            antProject.log(task, text, throwable, Project.MSG_VERBOSE);
        } else if (Level.INFO.equals(level)) {
            antProject.log(task, text, throwable, Project.MSG_INFO);
        } else if (Level.WARN.equals(level)) {
            antProject.log(task, text, throwable, Project.MSG_WARN);
        } else if (Level.ERROR.equals(level) || Level.FATAL.equals(level)) {
            antProject.log(task, text, throwable, Project.MSG_ERR);
        } else {
            antProject.log(task, text, throwable, Project.MSG_ERR);
        }
    }

    public void close() {
        antProject = null;
    }

    public boolean requiresLayout() {
        return true;
    }
}