package com.atlassian.marketplace.client.encoding;
   
   import static com.google.common.base.Preconditions.checkNotNull;
   
   /**
    * Base class for error descriptors that indicate that a response from the Marketplace server did
    * not conform to the expected JSON schema, or that a model object constructed by the caller (to
    * be sent to the server) was invalid.
    * @since 2.0.0
   */
  public abstract class SchemaViolation
  {
      private final Class<?> schemaClass;
      
      protected SchemaViolation(Class<?> schemaClass)
      {
          this.schemaClass = checkNotNull(schemaClass);
      }
      
      /**
       * The class of the model object that was involved in the error.
       */
      public Class<?> getSchemaClass()
      {
          return schemaClass;
      }
      
      /**
       * A human-readable string describing the error.
       */
      public abstract String getMessage();
      
      @Override
      public String toString()
      {
          return getMessage();
      }
  }