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      1 /**
      2  * Copyright (c) 2004-2011 QOS.ch
      3  * All rights reserved.
      4  *
      5  * Permission is hereby granted, free  of charge, to any person obtaining
      6  * a  copy  of this  software  and  associated  documentation files  (the
      7  * "Software"), to  deal in  the Software without  restriction, including
      8  * without limitation  the rights to  use, copy, modify,  merge, publish,
      9  * distribute,  sublicense, and/or sell  copies of  the Software,  and to
     10  * permit persons to whom the Software  is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The  above  copyright  notice  and  this permission  notice  shall  be
     14  * included in all copies or substantial portions of the Software.
     15  *
     16  * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
     17  * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
     18  * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
     19  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
     20  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     21  * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
     22  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  */
     25 package org.slf4j.helpers;
     26 
     27 /**
     28  * Holds the results of formatting done by {@link MessageFormatter}.
     29  *
     30  * @author Joern Huxhorn
     31  */
     32 public class FormattingTuple {
     33 
     34     static public FormattingTuple NULL = new FormattingTuple(null);
     35 
     36     private String message;
     37     private Throwable throwable;
     38     private Object[] argArray;
     39 
     40     public FormattingTuple(String message) {
     41         this(message, null, null);
     42     }
     43 
     44     public FormattingTuple(String message, Object[] argArray, Throwable throwable) {
     45         this.message = message;
     46         this.throwable = throwable;
     47         if (throwable == null) {
     48             this.argArray = argArray;
     49         } else {
     50             this.argArray = trimmedCopy(argArray);
     51         }
     52     }
     53 
     54     static Object[] trimmedCopy(Object[] argArray) {
     55         if (argArray == null || argArray.length == 0) {
     56             throw new IllegalStateException("non-sensical empty or null argument array");
     57         }
     58         final int trimemdLen = argArray.length - 1;
     59         Object[] trimmed = new Object[trimemdLen];
     60         System.arraycopy(argArray, 0, trimmed, 0, trimemdLen);
     61         return trimmed;
     62     }
     63 
     64     public String getMessage() {
     65         return message;
     66     }
     67 
     68     public Object[] getArgArray() {
     69         return argArray;
     70     }
     71 
     72     public Throwable getThrowable() {
     73         return throwable;
     74     }
     75 
     76 }
     77