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1448
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1 package goodjava.logger;
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2
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3 import java.io.Writer;
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4 import java.io.IOException;
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5
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6
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7 public class WriterAppender implements Appender {
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8 protected final Layout layout;
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9 protected Writer writer;
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10
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11 public WriterAppender(Layout layout,Writer writer) {
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12 this.layout = layout;
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13 this.writer = writer;
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14 }
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15
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16 public synchronized void append(LoggingEvent event) {
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17 try {
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18 writer.write( layout.format(event) );
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19 flush();
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20 } catch(IOException e) {
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21 printStackTrace(e);
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22 }
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23 }
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24
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25 protected void flush() throws IOException {
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26 writer.flush();
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27 }
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28
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29 public void close() {
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30 try {
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31 writer.close();
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32 } catch(IOException e) {
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33 printStackTrace(e);
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34 }
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35 }
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36
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37 protected void printStackTrace(IOException e) {
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38 e.printStackTrace();
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39 }
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40 }
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