ReflectionAssignabilityUtils.java

/*
 * Copyright © 2017, Salesforce.com, Inc
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 *       documentation and/or other materials provided with the distribution.
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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package com.salesforce.apt.graph.types.impl;

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

public class ReflectionAssignabilityUtils implements AssignabilityUtils {

  @Override
  public boolean isAssignableFrom(InstanceModel subject, InstanceModel target) {
    try {
      int count = 0;
      while (!target.getDependencies().get(count).getIdentity().equals(subject.getIdentity())
          && !subject.getAliases().contains(target.getDependencies().get(count).getIdentity())) {
        count ++;
      }
      return Class.forName(target.getDependencies().get(count).getType()).isAssignableFrom(Class.forName(subject.getEntityType()));
    } catch (ClassNotFoundException cne) {
      throw new IllegalArgumentException("Classes can not be compared " + subject + " and " + target, cne);
    }
  }

}