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Ant example source code file (

This example Ant source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Ant tags/keywords

buildlistener, buildlistener, buildlogger, buildlogger, io

The source code

 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You 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
 *  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.



 * Interface used by Ant to log the build output.
 * A build logger is a build listener which has the 'right' to send output to
 * the ant log, which is usually <code>System.out unless redirected by
 * the <code>-logfile option.
public interface BuildLogger extends BuildListener {

     * Sets the highest level of message this logger should respond to.
     * Only messages with a message level lower than or equal to the
     * given level should be written to the log.
     * <P>
     * Constants for the message levels are in the
     * {@link Project Project} class. The order of the levels, from least
     * to most verbose, is <code>MSG_ERR, MSG_WARN,
     * <code>MSG_INFO, MSG_VERBOSE,
     * <code>MSG_DEBUG.
     * @param level the logging level for the logger.
    void setMessageOutputLevel(int level);

     * Sets the output stream to which this logger is to send its output.
     * @param output The output stream for the logger.
     *               Must not be <code>null.
    void setOutputPrintStream(PrintStream output);

     * Sets this logger to produce emacs (and other editor) friendly output.
     * @param emacsMode <code>true if output is to be unadorned so that
     *                  emacs and other editors can parse files names, etc.
    void setEmacsMode(boolean emacsMode);

     * Sets the output stream to which this logger is to send error messages.
     * @param err The error stream for the logger.
     *            Must not be <code>null.
    void setErrorPrintStream(PrintStream err);

Other Ant examples (source code examples)

Here is a short list of links related to this Ant source code file:

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