org.onos.yangtools.yang.model.util.RangeConstraintImpl.java Source code

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Here is the source code for org.onos.yangtools.yang.model.util.RangeConstraintImpl.java

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/*
 * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */
package org.onos.yangtools.yang.model.util;

import org.onos.yangtools.concepts.Immutable;
import org.onos.yangtools.yang.model.api.type.LengthConstraint;
import org.onos.yangtools.yang.model.api.type.RangeConstraint;

import com.google.common.base.Optional;
import com.google.common.base.Preconditions;

/**
 * {@link Immutable} implementation of {@link LengthConstraint}.
 *
 * Range constraint based on supplied parameters with additional behaviour:
 *
 * <ul>
 * <li>{@link RangeConstraint#getErrorAppTag()} returns
 * <code>range-out-of-specified-bounds</code>
 * <li>{@link RangeConstraint#getErrorMessage() returns <code>The argument is
 * out of bounds &lt;<i>min</i>, <i>max</i> &gt;</code>
 * </ul>
 */
final class RangeConstraintImpl implements RangeConstraint, Immutable {
    private final Number min;
    private final Number max;

    private final String description;
    private final String reference;

    private final String errorAppTag;
    private final String errorMessage;

    RangeConstraintImpl(final Number min, final Number max, final Optional<String> description,
            final Optional<String> reference) {
        super();
        this.min = Preconditions.checkNotNull(min, "min must not be null.");
        this.max = Preconditions.checkNotNull(max, "max must not be null.");
        this.description = description.orNull();
        this.reference = reference.orNull();

        this.errorAppTag = "range-out-of-specified-bounds";
        this.errorMessage = "The argument is out of bounds <" + min + ", " + max + ">";
    }

    @Override
    public String getDescription() {
        return description;
    }

    @Override
    public String getErrorAppTag() {
        return errorAppTag;
    }

    @Override
    public String getErrorMessage() {
        return errorMessage;
    }

    @Override
    public String getReference() {
        return reference;
    }

    @Override
    public Number getMin() {
        return min;
    }

    @Override
    public Number getMax() {
        return max;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((description == null) ? 0 : description.hashCode());
        result = prime * result + errorAppTag.hashCode();
        result = prime * result + errorMessage.hashCode();
        result = prime * result + max.hashCode();
        result = prime * result + min.hashCode();
        result = prime * result + ((reference == null) ? 0 : reference.hashCode());
        return result;
    }

    @Override
    public boolean equals(final Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final RangeConstraintImpl other = (RangeConstraintImpl) obj;
        if (description == null) {
            if (other.description != null) {
                return false;
            }
        } else if (!description.equals(other.description)) {
            return false;
        }
        if (max == null) {
            if (other.max != null) {
                return false;
            }
        } else if (!max.equals(other.max)) {
            return false;
        }
        if (min == null) {
            if (other.min != null) {
                return false;
            }
        } else if (!min.equals(other.min)) {
            return false;
        }
        if (reference == null) {
            if (other.reference != null) {
                return false;
            }
        } else if (!reference.equals(other.reference)) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        final StringBuilder builder = new StringBuilder();
        builder.append("RangeConstraintImpl [min=");
        builder.append(min);
        builder.append(", max=");
        builder.append(max);
        builder.append(", description=");
        builder.append(description);
        builder.append(", reference=");
        builder.append(reference);
        builder.append(", errorAppTag=");
        builder.append(errorAppTag);
        builder.append(", errorMessage=");
        builder.append(errorMessage);
        builder.append("]");
        return builder.toString();
    }
}