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annotate core/src/luan/LuanException.java @ 200:9fb218211763

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add Package.block(); add LuanException.getFullMessage(); git-svn-id: https://luan-java.googlecode.com/svn/trunk@201 21e917c8-12df-6dd8-5cb6-c86387c605b9
author fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
date Thu, 03 Jul 2014 22:22:16 +0000
parents 3dcb0f9bee82
children 5d4a78c93383
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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1 package luan;
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3 import java.io.StringWriter;
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4 import java.io.PrintWriter;
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7 public final class LuanException extends Exception {
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8 private final String stackTrace;
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6ca02b188dba add LuanBit to clean up code;
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10 LuanException(LuanBit bit,Object msg) {
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11 super(message(msg),cause(msg));
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12 stackTrace = stackTrace(bit,msg);
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13 }
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15 @Override public String getMessage() {
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16 return super.getMessage() + stackTrace;
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17 }
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19 public String getFullMessage() {
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20 String msg = getMessage();
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21 Throwable cause = getCause();
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22 if( cause != null ) {
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23 msg += "\nCaused by: ";
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24 StringWriter sw = new StringWriter();
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25 cause.printStackTrace(new PrintWriter(sw));
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26 msg += sw;
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27 }
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28 return msg;
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29 }
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31 private String message() {
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32 return super.getMessage();
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33 }
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35 private static Throwable cause(Object msg) {
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36 return msg instanceof Throwable ? (Throwable)msg : null;
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37 }
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39 private static String message(Object msg) {
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fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9>
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40 if( msg instanceof LuanException ) {
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41 LuanException le = (LuanException)msg;
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42 return le.message();
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43 /*
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44 } else if( msg instanceof Throwable ) {
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45 Throwable t = (Throwable)msg;
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46 return t.getMessage();
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47 */
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48 } else {
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49 return msg.toString();
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50 }
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51 }
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53 private static String stackTrace(LuanBit bit,Object msg) {
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54 StringBuilder buf = new StringBuilder();
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55 buf.append( bit.stackTrace() );
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56 if( msg instanceof LuanException ) {
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57 LuanException le = (LuanException)msg;
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58 buf.append( "\ncaused by:" ).append( le.stackTrace );
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59 }
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60 return buf.toString();
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61 }
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62 }