/*
 * Copyright (c) 1999, 2008, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

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();
 }

 }