javatypeexpr.java

RESIN 3.2 最新源码

/*
 * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
 *
 * This file is part of Resin(R) Open Source
 *
 * Each copy or derived work must preserve the copyright notice and this
 * notice unmodified.
 *
 * Resin Open Source is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Resin Open Source is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
 * of NON-INFRINGEMENT.  See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Resin Open Source; if not, write to the
 *   Free SoftwareFoundation, Inc.
 *   59 Temple Place, Suite 330
 *   Boston, MA 02111-1307  USA
 *
 * @author Scott Ferguson
 */

package com.caucho.es.parser;

import com.caucho.es.ESException;
import com.caucho.es.ESId;
import com.caucho.server.util.CauchoSystem;

/**
 * Expression for a java type.
 */
class JavaTypeExpr extends TypeExpr {
  JavaTypeExpr(Block block, String className)
  {
    super(block, null);

    this.type = TYPE_JAVA;
    _typeName = className;
    try {
      this.javaType = CauchoSystem.loadClass(className, false,
                                             block.getClassLoader());
    } catch (Exception e) {
      this.type = TYPE_ES;
    }
  }

  JavaTypeExpr(Block block, Class javaClass)
  {
    super(block, null);

    this.type = TYPE_JAVA;
    this.javaType = javaClass;

    _typeName = getTypeName(javaClass);
  }

  private String getTypeName(Class cl)
  {
    if (cl.isArray())
      return getTypeName(cl.getComponentType()) + "[]";
    else
      return cl.getName();
  }
  
  Expr fieldReference(ESId id)
    throws ESException
  {
    if (_typeName.equals(""))
      return new JavaTypeExpr(block, id.toString());
    else
      return new JavaTypeExpr(block, _typeName + "." + id);
  }
  
  public String toString()
  {
    return "[JavaTypeExpr " + javaType + " " + type + "]";
  }
}