001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.util.ant;
016    
017    import com.liferay.portal.kernel.io.unsync.UnsyncBufferedReader;
018    import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
019    import com.liferay.portal.kernel.util.StringBundler;
020    
021    import java.io.IOException;
022    
023    import org.apache.tools.ant.BuildEvent;
024    import org.apache.tools.ant.DefaultLogger;
025    import org.apache.tools.ant.Project;
026    import org.apache.tools.ant.util.StringUtils;
027    
028    /**
029     * @author Brian Wing Shun Chan
030     */
031    public class SystemLogger extends DefaultLogger {
032    
033            public void messageLogged(BuildEvent event) {
034                    int priority = event.getPriority();
035    
036                    if (priority <= msgOutputLevel) {
037                            StringBundler sb = new StringBundler();
038    
039                            try {
040                                    UnsyncBufferedReader unsyncBufferedReader =
041                                            new UnsyncBufferedReader(
042                                                    new UnsyncStringReader(event.getMessage()));
043    
044                                    String line = unsyncBufferedReader.readLine();
045    
046                                    boolean first = true;
047    
048                                    while (line != null) {
049                                            if (!first) {
050                                                    sb.append(StringUtils.LINE_SEP);
051                                            }
052    
053                                            first = false;
054    
055                                            sb.append("  ");
056                                            sb.append(line);
057    
058                                            line = unsyncBufferedReader.readLine();
059                                    }
060                            }
061                            catch (IOException e) {
062                            }
063    
064                            String msg = sb.toString();
065    
066                            if (priority != Project.MSG_ERR) {
067                                    printMessage(msg, out, priority);
068                            }
069                            else {
070                                    printMessage(msg, err, priority);
071                            }
072    
073                            log(msg);
074                    }
075            }
076    
077    }