| /* |
| * 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 "="; |
| } |
| |
| } |