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ConstantUtf8.java 3.9KB

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  1. package org.aspectj.apache.bcel.classfile;
  2. /* ====================================================================
  3. * The Apache Software License, Version 1.1
  4. *
  5. * Copyright (c) 2001 The Apache Software Foundation. All rights
  6. * reserved.
  7. *
  8. * Redistribution and use in source and binary forms, with or without
  9. * modification, are permitted provided that the following conditions
  10. * are met:
  11. *
  12. * 1. Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. *
  15. * 2. Redistributions in binary form must reproduce the above copyright
  16. * notice, this list of conditions and the following disclaimer in
  17. * the documentation and/or other materials provided with the
  18. * distribution.
  19. *
  20. * 3. The end-user documentation included with the redistribution,
  21. * if any, must include the following acknowledgment:
  22. * "This product includes software developed by the
  23. * Apache Software Foundation (https://www.apache.org/)."
  24. * Alternately, this acknowledgment may appear in the software itself,
  25. * if and wherever such third-party acknowledgments normally appear.
  26. *
  27. * 4. The names "Apache" and "Apache Software Foundation" and
  28. * "Apache BCEL" must not be used to endorse or promote products
  29. * derived from this software without prior written permission. For
  30. * written permission, please contact apache@apache.org.
  31. *
  32. * 5. Products derived from this software may not be called "Apache",
  33. * "Apache BCEL", nor may "Apache" appear in their name, without
  34. * prior written permission of the Apache Software Foundation.
  35. *
  36. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  37. * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  38. * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  39. * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
  40. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  41. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  42. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  43. * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  44. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  45. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  46. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  47. * SUCH DAMAGE.
  48. * ====================================================================
  49. *
  50. * This software consists of voluntary contributions made by many
  51. * individuals on behalf of the Apache Software Foundation. For more
  52. * information on the Apache Software Foundation, please see
  53. * <https://www.apache.org/>.
  54. */
  55. import java.io.DataInputStream;
  56. import java.io.DataOutputStream;
  57. import java.io.IOException;
  58. import org.aspectj.apache.bcel.Constants;
  59. /**
  60. * This class is derived from the abstract <A HREF="org.aspectj.apache.bcel.classfile.Constant.html">Constant</A> class and
  61. * represents a reference to a Utf8 encoded string.
  62. *
  63. * @version $Id: ConstantUtf8.java,v 1.5 2009/09/16 00:43:49 aclement Exp $
  64. * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
  65. * @see Constant
  66. */
  67. public final class ConstantUtf8 extends Constant implements SimpleConstant {
  68. private String string;
  69. ConstantUtf8(DataInputStream file) throws IOException {
  70. super(Constants.CONSTANT_Utf8);
  71. string = file.readUTF();
  72. }
  73. public ConstantUtf8(String string) {
  74. super(Constants.CONSTANT_Utf8);
  75. assert string != null;
  76. this.string = string;
  77. }
  78. @Override
  79. public void accept(ClassVisitor v) {
  80. v.visitConstantUtf8(this);
  81. }
  82. @Override
  83. public final void dump(DataOutputStream file) throws IOException {
  84. file.writeByte(tag);
  85. file.writeUTF(string);
  86. }
  87. @Override
  88. public final String toString() {
  89. return super.toString() + "(\"" + Utility.replace(string, "\n", "\\n") + "\")";
  90. }
  91. @Override
  92. public String getValue() {
  93. return string;
  94. }
  95. public String getStringValue() {
  96. return string;
  97. }
  98. }