content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.activiti.core.el.juel.tree.impl.ast;
  
  import jakarta.el.ELContext;
  import org.activiti.core.el.juel.misc.BooleanOperations;
  import org.activiti.core.el.juel.misc.NumberOperations;
  import org.activiti.core.el.juel.misc.TypeConverter;
  import org.activiti.core.el.juel.tree.Bindings;
  
  public class AstBinary extends AstRightValue {
  
      public interface Operator {
          public Object eval(Bindings bindings, ELContext context, AstNode left, AstNode right);
      }
  
      public abstract static class SimpleOperator implements Operator {
  
          public Object eval(Bindings bindings, ELContext context, AstNode left, AstNode right) {
              return apply(bindings, left.eval(bindings, context), right.eval(bindings, context));
          }
  
          protected abstract Object apply(TypeConverter converter, Object o1, Object o2);
      }
  
      public static final Operator ADD = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return NumberOperations.add(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "+";
          }
      };
      public static final Operator AND = new Operator() {
          public Object eval(Bindings bindings, ELContext context, AstNode left, AstNode right) {
              Boolean l = bindings.convert(left.eval(bindings, context), Boolean.class);
              return Boolean.TRUE.equals(l)
                  ? bindings.convert(right.eval(bindings, context), Boolean.class)
                  : Boolean.FALSE;
          }
  
          @Override
          public String toString() {
              return "&&";
          }
      };
      public static final Operator DIV = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return NumberOperations.div(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "/";
          }
      };
      public static final Operator EQ = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return BooleanOperations.eq(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "==";
          }
      };
      public static final Operator GE = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return BooleanOperations.ge(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return ">=";
          }
      };
      public static final Operator GT = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return BooleanOperations.gt(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return ">";
          }
      };
      public static final Operator LE = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return BooleanOperations.le(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "<=";
          }
      };
      public static final Operator LT = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return BooleanOperations.lt(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "<";
          }
      };
      public static final Operator MOD = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return NumberOperations.mod(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "%";
          }
      };
      public static final Operator MUL = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return NumberOperations.mul(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "*";
          }
      };
      public static final Operator NE = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return BooleanOperations.ne(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "!=";
          }
      };
      public static final Operator OR = new Operator() {
          public Object eval(Bindings bindings, ELContext context, AstNode left, AstNode right) {
              Boolean l = bindings.convert(left.eval(bindings, context), Boolean.class);
              return Boolean.TRUE.equals(l)
                  ? Boolean.TRUE
                  : bindings.convert(right.eval(bindings, context), Boolean.class);
          }
  
          @Override
          public String toString() {
              return "||";
          }
      };
      public static final Operator SUB = new SimpleOperator() {
          @Override
          public Object apply(TypeConverter converter, Object o1, Object o2) {
              return NumberOperations.sub(converter, o1, o2);
          }
  
          @Override
          public String toString() {
              return "-";
          }
      };
  
      private final Operator operator;
      private final AstNode left, right;
  
      public AstBinary(AstNode left, AstNode right, Operator operator) {
          this.left = left;
          this.right = right;
          this.operator = operator;
      }
  
      public Operator getOperator() {
          return operator;
      }
  
      @Override
      public Object eval(Bindings bindings, ELContext context) {
          return operator.eval(bindings, context, left, right);
      }
  
      @Override
      public String toString() {
          return "'" + operator.toString() + "'";
      }
  
      @Override
      public void appendStructure(StringBuilder b, Bindings bindings) {
          left.appendStructure(b, bindings);
          b.append(' ');
          b.append(operator);
          b.append(' ');
          right.appendStructure(b, bindings);
      }
  
      public int getCardinality() {
          return 2;
      }
  
      public AstNode getChild(int i) {
          return i == 0 ? left : i == 1 ? right : null;
      }
  }
  