/*

 * 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 InQueryExp extends QueryEval implements QueryExp {

    /* Serial version */

    private static final long serialVersionUID = -5801329450358952434L;

    /**

     * @serial The {@link ValueExp} to be found

     */

    private ValueExp val;

    /**

     * @serial The array of {@link ValueExp} to be searched

     */

    private ValueExp[]  valueList;

    /**

     * Basic Constructor.

     */

    public InQueryExp() {

    }

    /**

     * Creates a new InQueryExp with the specified ValueExp to be found in

     * a specified array of ValueExp.

     */

    public InQueryExp(ValueExp v1, ValueExp items[]) {

        val       = v1;

        valueList = items;

    }

    /**

     * Returns the checked value of the query.

     */

    public ValueExp getCheckedValue()  {

        return val;

    }

    /**

     * Returns the array of values of the query.

     */

    public ValueExp[] getExplicitValues()  {

        return valueList;

    }

    /**

     * Applies the InQueryExp on a MBean.

     *

     * @param name The name of the MBean on which the InQueryExp 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  {

        if (valueList != null) {

            ValueExp v      = val.apply(name);

            boolean numeric = v instanceof NumericValueExp;

            for (ValueExp element : valueList) {

                element = element.apply(name);

                if (numeric) {

                    if (((NumericValueExp) element).doubleValue() ==

                        ((NumericValueExp) v).doubleValue()) {

                        return true;

                    }

                } else {

                    if (((StringValueExp) element).getValue().equals(

                        ((StringValueExp) v).getValue())) {

                        return true;

                    }

                }

            }

        }

        return false;

    }

    /**

     * Returns the string representing the object.

     */

    public String toString()  {

        return val + " in (" + generateValueList() + ")";

    }

    private String generateValueList() {

        if (valueList == null || valueList.length == 0) {

            return "";

        }

        final StringBuilder result =

                new StringBuilder(valueList[0].toString());

        for (int i = 1; i < valueList.length; i++) {

            result.append(", ");

            result.append(valueList[i]);

        }

        return result.toString();

    }

 }