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    1   /*
    2    * Copyright 2002-2006 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
    17  package org.apache.commons.jexl.parser;
    18
    19  import org.apache.commons.jexl.JexlContext;
    20  import org.apache.commons.jexl.util.Coercion;
    21
    22  /***
    23   * Bitwise Or. Syntax: a | b Result is a Long
    24   *
    25   * @author Dion Gillard
    26   * @since 1.1
    27   */
    28
    29  public class ASTBitwiseOrNode extends SimpleNode {
    30      /***
    31       * Create the node given an id.
    32       *
    33       * @param id node id.
    34       */
    35      public ASTBitwiseOrNode(int id) {
    36          super(id);
    37      }
    38
    39      /***
    40       * Create a node with the given parser and id.
    41       *
    42       * @param p a parser.
    43       * @param id node id.
    44       */
    45      public ASTBitwiseOrNode(Parser p, int id) {
    46          super(p, id);
    47      }
    48
    49      /*** {@inheritDoc} */
    50      public Object jjtAccept(ParserVisitor visitor, Object data) {
    51          return visitor.visit(this, data);
    52      }
    53
    54      /*** {@inheritDoc} */
    55      public Object value(JexlContext context) throws Exception {
    56          Object left = ((SimpleNode) jjtGetChild(0)).value(context);
    57          Object right = ((SimpleNode) jjtGetChild(1)).value(context);
    58
    59          Long l = left == null ? new Long(0) : Coercion.coerceLong(left);
    60          Long r = right == null ? new Long(0) : Coercion.coerceLong(right);
    61          return new Long(l.longValue() | r.longValue());
    62      }
    63  }