001    /**
002     * Copyright (c) 2000-2013 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            @Override
034            public void messageLogged(BuildEvent event) {
035                    int priority = event.getPriority();
036    
037                    if (priority > msgOutputLevel) {
038                            return;
039                    }
040    
041                    StringBundler sb = new StringBundler();
042    
043                    try {
044                            UnsyncBufferedReader unsyncBufferedReader =
045                                    new UnsyncBufferedReader(
046                                            new UnsyncStringReader(event.getMessage()));
047    
048                            String line = unsyncBufferedReader.readLine();
049    
050                            boolean first = true;
051    
052                            while (line != null) {
053                                    if (!first) {
054                                            sb.append(StringUtils.LINE_SEP);
055                                    }
056    
057                                    first = false;
058    
059                                    sb.append("  ");
060                                    sb.append(line);
061    
062                                    line = unsyncBufferedReader.readLine();
063                            }
064                    }
065                    catch (IOException ioe) {
066                    }
067    
068                    String msg = sb.toString();
069    
070                    if (priority != Project.MSG_ERR) {
071                            printMessage(msg, out, priority);
072                    }
073                    else {
074                            printMessage(msg, err, priority);
075                    }
076    
077                    log(msg);
078            }
079    
080    }