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    1   /***************************************************************************************
    2    * Copyright (c) Jonas BonŽr, Alexandre Vasseur. All rights reserved.                 *
    3    * http://aspectwerkz.codehaus.org                                                    *
    4    * ---------------------------------------------------------------------------------- *
    5    * The software in this package is published under the terms of the LGPL license      *
    6    * a copy of which has been included with this distribution in the license.txt file.  *
    7    **************************************************************************************/
    8   package org.codehaus.aspectwerkz.reflect;
    9
    10  /***
    11   * Inspects info.
    12   *
    13   * @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur </a>
    14   */
    15  public class MetaDataInspector {
    16      /***
    17       * Checks if a class has a certain field.
    18       *
    19       * @param classInfo
    20       * @param fieldName
    21       * @return
    22       */
    23      public static boolean hasField(final ClassInfo classInfo, final String fieldName) {
    24          for (int i = 0; i < classInfo.getFields().length; i++) {
    25              FieldInfo fieldMetaData = classInfo.getFields()[i];
    26              if (fieldMetaData.getName().equals(fieldName)) {
    27                  return true;
    28              }
    29          }
    30          return false;
    31      }
    32
    33      /***
    34       * Checks if a class implements a certain interface.
    35       *
    36       * @param classInfo
    37       * @param interfaceName
    38       * @return
    39       */
    40      public static boolean hasInterface(final ClassInfo classInfo, final String interfaceName) {
    41          for (int i = 0; i < classInfo.getInterfaces().length; i++) {
    42              ClassInfo interfaceMetaData = classInfo.getInterfaces()[i];
    43              if (interfaceMetaData.getName().equals(interfaceName)) {
    44                  return true;
    45              }
    46          }
    47          return false;
    48      }
    49  }