aeinstaller/backend/LogPrintStream.java

package net.oni2.aeinstaller.backend;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;

/**
 * @author Christian Illy
 */
public class LogPrintStream extends OutputStream {
        private static LogPrintStream instance = new LogPrintStream();

        private ByteArrayOutputStream baos = new ByteArrayOutputStream();
        private FileWriter fw = null;
        private PrintStream stdOut = null;

        private boolean logStdOut = true;

        private LogPrintStream() {
                stdOut = System.out;

                PrintStream ps = new PrintStream(this);
                System.setOut(ps);
                System.setErr(ps);
        }

        /**
         * @return Logger instance
         */
        public static LogPrintStream getInstance() {
                return instance;
        }

        /**
         * Set the file to log to
         * 
         * @param logFile
         *            Log file
         * @throws IOException
         *             Should not happen?!
         */
        public void setFile(File logFile) throws IOException {
                if (fw != null)
                        fw.close();
                fw = new FileWriter(logFile);
        }

        @Override
        public void write(int b) throws IOException {
                baos.write(b);
                if (logStdOut)
                        stdOut.write(b);
                if (fw != null)
                        fw.write(b);
        }

        /**
         * @return Get the text that has been written to log up to now
         */
        public String getLog() {
                return baos.toString();
        }

        @Override
        public void flush() throws IOException {
                stdOut.flush();
                baos.flush();
                if (fw != null)
                        fw.flush();
        }

        @Override
        public void close() throws IOException {
                if (fw != null)
                        fw.close();
                super.close();
        }
}
Revision:	886
Committed:	Mon Jun 24 18:06:11 2013 UTC (12 years, 3 months ago) by alloc
Content type:	text/x-java
File size:	1561 byte(s)
Log Message:	AEI2.16: - Fixes #61 - Fixes #62 - Adds help request dialog
#	Content
1	package net.oni2.aeinstaller.backend;
2
3	import java.io.ByteArrayOutputStream;
4	import java.io.File;
5	import java.io.FileWriter;
6	import java.io.IOException;
7	import java.io.OutputStream;
8	import java.io.PrintStream;
9
10	/**
11	* @author Christian Illy
12	*/
13	public class LogPrintStream extends OutputStream {
14	private static LogPrintStream instance = new LogPrintStream();
15
16	private ByteArrayOutputStream baos = new ByteArrayOutputStream();
17	private FileWriter fw = null;
18	private PrintStream stdOut = null;
19
20	private boolean logStdOut = true;
21
22	private LogPrintStream() {
23	stdOut = System.out;
24
25	PrintStream ps = new PrintStream(this);
26	System.setOut(ps);
27	System.setErr(ps);
28	}
29
30	/**
31	* @return Logger instance
32	*/
33	public static LogPrintStream getInstance() {
34	return instance;
35	}
36
37	/**
38	* Set the file to log to
39	*
40	* @param logFile
41	* Log file
42	* @throws IOException
43	* Should not happen?!
44	*/
45	public void setFile(File logFile) throws IOException {
46	if (fw != null)
47	fw.close();
48	fw = new FileWriter(logFile);
49	}
50
51	@Override
52	public void write(int b) throws IOException {
53	baos.write(b);
54	if (logStdOut)
55	stdOut.write(b);
56	if (fw != null)
57	fw.write(b);
58	}
59
60	/**
61	* @return Get the text that has been written to log up to now
62	*/
63	public String getLog() {
64	return baos.toString();
65	}
66
67	@Override
68	public void flush() throws IOException {
69	stdOut.flush();
70	baos.flush();
71	if (fw != null)
72	fw.flush();
73	}
74
75	@Override
76	public void close() throws IOException {
77	if (fw != null)
78	fw.close();
79	super.close();
80	}
81	}