/* * Copyright (c) 1999, 2008, Oracle and/or its affiliates. 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.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.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 * operations. * @serial include * * @since 1.5 */class BinaryRelQueryExp extends QueryEval implements QueryExp {     /* Serial version */    private static final long serialVersionUID = -5690656271650491000L;     /**     * @serial The operator     */    private int relOp;     /**     * @serial The first value     */    private ValueExp exp1;     /**     * @serial The second value     */    private ValueExp exp2;      /**     * Basic Constructor.     */    public BinaryRelQueryExp() {    }     /**     * Creates a new BinaryRelQueryExp with operator op applied on v1 and     * v2 values.     */    public BinaryRelQueryExp(int op, ValueExp v1, ValueExp v2) {        relOp = op;        exp1  = v1;        exp2  = v2;    }      /**     * Returns the operator of the query.     */    public int getOperator()  {        return relOp;    }     /**     * Returns the left value of the query.     */    public ValueExp getLeftValue()  {        return exp1;    }     /**     * Returns the right value of the query.     */    public ValueExp getRightValue()  {        return exp2;    }     /**     * Applies the BinaryRelQueryExp on an MBean.     *     * @param name The name of the MBean on which the BinaryRelQueryExp 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  {        Object val1 = exp1.apply(name);        Object val2 = exp2.apply(name);        boolean numeric = val1 instanceof NumericValueExp;        boolean bool = val1 instanceof BooleanValueExp;        if (numeric) {            if (((NumericValueExp)val1).isLong()) {                long lval1 = ((NumericValueExp)val1).longValue();                long lval2 = ((NumericValueExp)val2).longValue();                 switch (relOp) {                case Query.GT:                    return lval1 > lval2;                case Query.LT:                    return lval1 < lval2;                case Query.GE:                    return lval1 >= lval2;                case Query.LE:                    return lval1 <= lval2;                case Query.EQ:                    return lval1 == lval2;                }            } else {                double dval1 = ((NumericValueExp)val1).doubleValue();                double dval2 = ((NumericValueExp)val2).doubleValue();                 switch (relOp) {                case Query.GT:                    return dval1 > dval2;                case Query.LT:                    return dval1 < dval2;                case Query.GE:                    return dval1 >= dval2;                case Query.LE:                    return dval1 <= dval2;                case Query.EQ:                    return dval1 == dval2;                }            }         } else if (bool) {             boolean bval1 = ((BooleanValueExp)val1).getValue().booleanValue();            boolean bval2 = ((BooleanValueExp)val2).getValue().booleanValue();             switch (relOp) {            case Query.GT:                return bval1 && !bval2;            case Query.LT:                return !bval1 && bval2;            case Query.GE:                return bval1 || !bval2;            case Query.LE:                return !bval1 || bval2;            case Query.EQ:                return bval1 == bval2;            }         } else {            String sval1 = ((StringValueExp)val1).getValue();            String sval2 = ((StringValueExp)val2).getValue();             switch (relOp) {            case Query.GT:                return sval1.compareTo(sval2) > 0;            case Query.LT:                return sval1.compareTo(sval2) < 0;            case Query.GE:                return sval1.compareTo(sval2) >= 0;            case Query.LE:                return sval1.compareTo(sval2) <= 0;            case Query.EQ:                return sval1.compareTo(sval2) == 0;            }        }         return false;    }     /**     * Returns the string representing the object.     */    @Override    public String toString()  {        return "(" + exp1 + ") " + relOpString() + " (" + exp2 + ")";    }     private String relOpString() {        switch (relOp) {        case Query.GT:            return ">";        case Query.LT:            return "<";        case Query.GE:            return ">=";        case Query.LE:            return "<=";        case Query.EQ:            return "=";        }         return "=";    }  }