ReflectionAssignabilityUtils.java

  1. /*
  2.  * Copyright © 2017, Salesforce.com, Inc
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions are met:
  7.  *     * Redistributions of source code must retain the above copyright
  8.  *       notice, this list of conditions and the following disclaimer.
  9.  *     * Redistributions in binary form must reproduce the above copyright
  10.  *       notice, this list of conditions and the following disclaimer in the
  11.  *       documentation and/or other materials provided with the distribution.
  12.  *     * Neither the name of the <organization> nor the
  13.  *       names of its contributors may be used to endorse or promote products
  14.  *       derived from this software without specific prior written permission.
  15.  *
  16.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  17.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  18.  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19.  * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
  20.  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  21.  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22.  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  23.  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  25.  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26.  */
  27. package com.salesforce.apt.graph.types.impl;

  28. import com.salesforce.apt.graph.model.InstanceModel;
  29. import com.salesforce.apt.graph.types.AssignabilityUtils;

  30. public class ReflectionAssignabilityUtils implements AssignabilityUtils {

  31.   @Override
  32.   public boolean isAssignableFrom(InstanceModel subject, InstanceModel target) {
  33.     try {
  34.       int count = 0;
  35.       while (!target.getDependencies().get(count).getIdentity().equals(subject.getIdentity())
  36.           && !subject.getAliases().contains(target.getDependencies().get(count).getIdentity())) {
  37.         count ++;
  38.       }
  39.       return Class.forName(target.getDependencies().get(count).getType()).isAssignableFrom(Class.forName(subject.getEntityType()));
  40.     } catch (ClassNotFoundException cne) {
  41.       throw new IllegalArgumentException("Classes can not be compared " + subject + " and " + target, cne);
  42.     }
  43.   }

  44. }