/*

 * Copyright 1999-2008 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code 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.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package javax.management;

/**

 * This class is used by the query-building mechanism to represent binary

 * relations.

 * @serial include

 *

 * @since 1.5

 */

class BetweenQueryExp extends QueryEval implements QueryExp {

    /* Serial version */

    private static final long serialVersionUID = -2933597532866307444L;

    /**

     * @serial The checked value

     */

    private ValueExp exp1;

    /**

     * @serial The lower bound value

     */

    private ValueExp exp2;

    /**

     * @serial The upper bound value

     */

    private ValueExp exp3;

    /**

     * Basic Constructor.

     */

    public BetweenQueryExp() {

    }

    /**

     * Creates a new BetweenQueryExp with v1 checked value, v2 lower bound

     * and v3 upper bound values.

     */

    public BetweenQueryExp(ValueExp v1, ValueExp v2, ValueExp v3) {

        exp1  = v1;

        exp2  = v2;

        exp3  = v3;

    }

    /**

     * Returns the checked value of the query.

     */

    public ValueExp getCheckedValue()  {

        return exp1;

    }

    /**

     * Returns the lower bound value of the query.

     */

    public ValueExp getLowerBound()  {

        return exp2;

    }

    /**

     * Returns the upper bound value of the query.

     */

    public ValueExp getUpperBound()  {

        return exp3;

    }

    /**

     * Applies the BetweenQueryExp on an MBean.

     *

     * @param name The name of the MBean on which the BetweenQueryExp will be applied.

     *

     * @return  True if the query was successfully applied to the MBean, false otherwise.

     *

     * @exception BadStringOperationException

     * @exception BadBinaryOpValueExpException

     * @exception BadAttributeValueExpException

     * @exception InvalidApplicationException

     */

    public boolean apply(ObjectName name) throws BadStringOperationException, BadBinaryOpValueExpException,

        BadAttributeValueExpException, InvalidApplicationException  {

        ValueExp val1 = exp1.apply(name);

        ValueExp val2 = exp2.apply(name);

        ValueExp val3 = exp3.apply(name);

        boolean numeric = val1 instanceof NumericValueExp;

        if (numeric) {

            if (((NumericValueExp)val1).isLong()) {

                long lval1 = ((NumericValueExp)val1).longValue();

                long lval2 = ((NumericValueExp)val2).longValue();

                long lval3 = ((NumericValueExp)val3).longValue();

                return lval2 <= lval1 && lval1 <= lval3;

            } else {

                double dval1 = ((NumericValueExp)val1).doubleValue();

                double dval2 = ((NumericValueExp)val2).doubleValue();

                double dval3 = ((NumericValueExp)val3).doubleValue();

                return dval2 <= dval1 && dval1 <= dval3;

            }

        } else {

            String sval1 = ((StringValueExp)val1).getValue();

            String sval2 = ((StringValueExp)val2).getValue();

            String sval3 = ((StringValueExp)val3).getValue();

            return sval2.compareTo(sval1) <= 0 && sval1.compareTo(sval3) <= 0;

        }

    }

    /**

     * Returns the string representing the object.

     */

    @Override

    public String toString()  {

        return "(" + exp1 + ") between (" + exp2 + ") and (" + exp3 + ")";

    }

}