package com.atlassian.dbexporter.importer;
   
   import com.atlassian.dbexporter.node.NodeParser;
   
   import static com.google.common.base.Preconditions.checkNotNull;
   import static com.google.common.base.Preconditions.checkState;
   
   public final class ImporterUtils {
       private ImporterUtils() {
      }
  
      public static void checkStartNode(NodeParser node, String nodeName) {
          checkNode(node, nodeName, !node.isClosed());
      }
  
      /**
       * Checks that the node is the node with the given name and is not closed.
       *
       * @param node     the node to check
       * @param nodeName the name that the node must match.
       * @return {@code true} if and only if the node is of the given {@code nodeName} and {@link NodeParser#isClosed() is not closed}
       * @throws NullPointerException is {@code node} or {@code nodeName} is {@code null}
       */
      public static boolean isNodeNotClosed(NodeParser node, String nodeName) {
          checkNotNull(node);
          checkNotNull(nodeName);
          return !node.isClosed() && nodeName.equals(node.getName());
      }
  
      public static void checkEndNode(NodeParser node, String nodeName) {
          checkNode(node, nodeName, node.isClosed());
      }
  
      private static void checkNode(NodeParser node, String nodeName, boolean closed) {
          checkNotNull(node);
          checkState(node.getName().equals(nodeName), "%s is not named '%s' as expected", node, nodeName);
          checkState(closed, "%s is not closed (%s) as expected", node, closed);
      }
  }