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    1   /*
    2    * Copyright 2002,2004 The Apache Software Foundation.
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *      http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  package org.apache.commons.jexl.util;
    17
    18  import org.apache.commons.jexl.util.introspection.Uberspect;
    19  import org.apache.commons.jexl.util.introspection.UberspectImpl;
    20  import org.apache.commons.jexl.util.introspection.UberspectLoggable;
    21  import org.apache.commons.logging.Log;
    22  import org.apache.commons.logging.LogFactory;
    23
    24  /***
    25   *  Little class to manage a Velocity uberspector (Vel 1.4+) for instrospective
    26   *  services.
    27   *
    28   *  @since 1.0
    29   *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
    30   *  @version $Id: Introspector.java 398171 2006-04-29 14:57:29Z dion $
    31   */
    32  public class Introspector {
    33      /***
    34       *  The uberspector from Velocity that handles all instrospection patterns.
    35       */
    36      private static Uberspect uberSpect;
    37
    38      static {
    39
    40          Log logger = LogFactory.getLog(Introspector.class);
    41
    42          uberSpect = new UberspectImpl();
    43          ((UberspectLoggable) uberSpect).setRuntimeLogger(logger);
    44      }
    45
    46      /***
    47       *  For now, expose the raw uberspector to the AST.
    48       *
    49       *  @return Uberspect The Velocity uberspector.
    50       */
    51      public static Uberspect getUberspect() {
    52          return uberSpect;
    53      }
    54  }