annotate src/goodjava/logger/ListLayout.java @ 1474:13cbce740e1e

LowercaseAnalyzer
author Franklin Schmidt <fschmidt@gmail.com>
date Fri, 17 Apr 2020 21:53:09 -0600
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1 package goodjava.logger;
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2
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3
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4 public final class ListLayout implements Layout {
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5 private final Layout[] layouts;
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6
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7 public ListLayout(final Object... args) {
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8 layouts = new Layout[args.length];
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9 for( int i=0; i<args.length; i++ ) {
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10 Object obj = args[i];
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11 if( obj instanceof Layout ) {
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12 layouts[i] = (Layout)obj;
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13 } else if( obj instanceof String ) {
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14 layouts[i] = new StringLayout((String)obj);
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15 } else {
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16 throw new IllegalArgumentException("arg "+i);
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17 }
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18 }
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19 }
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20
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21 public String format(LoggingEvent event) {
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22 StringBuilder sb = new StringBuilder();
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23 for( Layout layout : layouts ) {
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24 sb.append( layout.format(event) );
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25 }
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26 return sb.toString();
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27 }
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28
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29 private static final class StringLayout implements Layout {
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30 final String s;
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31
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32 StringLayout(String s) {
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33 this.s = s;
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34 }
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35
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36 public String format(LoggingEvent event) {
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37 return s;
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38 }
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39 }
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40 }