FormattingTuple xref

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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
    35    static public FormattingTuple NULL = new FormattingTuple(null);
    36
    37    private String message;
    38    private Throwable throwable;
    39    private Object[] argArray;
    40
    41    public FormattingTuple(String message) {
    42      this(message, null, null);
    43    }
    44
    45    public FormattingTuple(String message, Object[] argArray, Throwable throwable) {
    46      this.message = message;
    47      this.throwable = throwable;
    48      if(throwable == null) {
    49        this.argArray = argArray;
    50      } else {
    51        this.argArray = trimmedCopy(argArray);
    52      }
    53    }
    54
    55    static Object[] trimmedCopy(Object[] argArray) {
    56      if(argArray == null || argArray.length == 0) {
    57        throw new  IllegalStateException("non-sensical empty or null argument array");
    58      }
    59      final int trimemdLen = argArray.length -1;
    60      Object[] trimmed = new Object[trimemdLen];
    61      System.arraycopy(argArray, 0, trimmed, 0, trimemdLen);
    62      return trimmed;
    63    }
    64
    65    public String getMessage() {
    66      return message;
    67    }
    68
    69    public Object[] getArgArray() {
    70      return argArray;
    71    }
    72
    73    public Throwable getThrowable() {
    74      return throwable;
    75    }
    76
    77  }