/*
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* The contents of this file are subject to the terms of the Common Development and
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* Distribution License (the License). You may not use this file except in compliance with the
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* License.
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*
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* You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
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* specific language governing permission and limitations under the License.
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*
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* When distributing Covered Software, include this CDDL Header Notice in each file and include
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* the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
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* Header, with the fields enclosed by brackets [] replaced by your own identifying
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* information: "Portions Copyright [year] [name of copyright owner]".
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*
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* Copyright 2006-2010 Sun Microsystems, Inc.
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* Portions copyright 2014-2016 ForgeRock AS.
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*/
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package com.forgerock.opendj.cli;
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import static com.forgerock.opendj.cli.CliMessages.*;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.i18n.LocalizableMessageBuilder;
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/**
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* This class defines an argument type that will only accept integer values, and
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* potentially only those in a given range.
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*/
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public final class IntegerArgument extends Argument {
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/**
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* Returns a builder which can be used for incrementally constructing a new
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* {@link IntegerArgument}.
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*
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* @param name
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* The generic name that will be used to refer to this argument.
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* @return A builder to continue building the {@link IntegerArgument}.
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*/
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public static Builder builder(final String name) {
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return new Builder(name);
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}
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/** A fluent API for incrementally constructing {@link IntegerArgument}. */
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public static final class Builder extends ArgumentBuilder<Builder, Integer, IntegerArgument> {
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private int lowerBound = Integer.MIN_VALUE;
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private int upperBound = Integer.MAX_VALUE;
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private Builder(final String name) {
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super(name);
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}
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@Override
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Builder getThis() {
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return this;
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}
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/**
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* Sets the lower bound of this {@link IntegerArgument}.
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*
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* @param lowerBound
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* The lower bound value.
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* @return This builder.
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*/
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public Builder lowerBound(final int lowerBound) {
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this.lowerBound = lowerBound;
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return getThis();
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}
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/**
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* Sets the range of this {@link IntegerArgument}.
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*
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* @param lowerBound
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* The range lower bound value.
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* @param upperBound
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* The range upper bound value.
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* @return This builder.
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*/
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public Builder range(final int lowerBound, final int upperBound) {
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this.lowerBound = lowerBound;
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this.upperBound = upperBound;
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return getThis();
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}
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@Override
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public IntegerArgument buildArgument() throws ArgumentException {
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return new IntegerArgument(this, lowerBound, upperBound);
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}
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}
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/** The lower bound that will be enforced for this argument. */
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private final int lowerBound;
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/** The upper bound that will be enforced for this argument. */
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private final int upperBound;
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private IntegerArgument(final Builder builder, final int lowerBound, final int upperBound)
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throws ArgumentException {
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super(builder);
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this.lowerBound = lowerBound;
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this.upperBound = upperBound;
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if (lowerBound > upperBound) {
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final LocalizableMessage message =
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ERR_INTARG_LOWER_BOUND_ABOVE_UPPER_BOUND.get(builder.longIdentifier, lowerBound, upperBound);
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throw new ArgumentException(message);
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}
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}
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/**
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* Indicates whether the provided value is acceptable for use in this
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* argument.
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*
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* @param valueString
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* The value for which to make the determination.
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* @param invalidReason
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* A buffer into which the invalid reason may be written if the
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* value is not acceptable.
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* @return <CODE>true</CODE> if the value is acceptable, or
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* <CODE>false</CODE> if it is not.
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*/
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@Override
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public boolean valueIsAcceptable(final String valueString, final LocalizableMessageBuilder invalidReason) {
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try {
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final int intValue = Integer.parseInt(valueString);
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if (intValue < lowerBound) {
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invalidReason.append(ERR_INTARG_VALUE_BELOW_LOWER_BOUND.get(longIdentifier, intValue, lowerBound));
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return false;
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}
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if (intValue > upperBound) {
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invalidReason.append(ERR_INTARG_VALUE_ABOVE_UPPER_BOUND.get(longIdentifier, intValue, upperBound));
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return false;
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}
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return true;
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} catch (final NumberFormatException e) {
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invalidReason.append(ERR_ARG_CANNOT_DECODE_AS_INT.get(valueString, longIdentifier));
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return false;
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}
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}
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}
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