103 lines
2.8 KiB
Java
103 lines
2.8 KiB
Java
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.internal.telephony;
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import java.util.Objects;
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/**
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* Represent the version of underlying vendor HAL service.
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* @see <a href="https://source.android.com/devices/architecture/hidl/versioning">
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* HIDL versioning</a>.
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*/
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public class HalVersion implements Comparable<HalVersion> {
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/** The HAL Version indicating that the version is unsupported */
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public static final HalVersion UNSUPPORTED = new HalVersion(-2, -2);
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/** The HAL Version indicating that the version is unknown or invalid */
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public static final HalVersion UNKNOWN = new HalVersion(-1, -1);
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public final int major;
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public final int minor;
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public HalVersion(int major, int minor) {
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this.major = major;
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this.minor = minor;
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}
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@Override
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public int compareTo(HalVersion ver) {
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if (ver == null) {
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return 1;
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}
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if (this.major > ver.major) {
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return 1;
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} else if (this.major < ver.major) {
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return -1;
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} else if (this.minor > ver.minor) {
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return 1;
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} else if (this.minor < ver.minor) {
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return -1;
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}
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return 0;
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}
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@Override
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public int hashCode() {
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return Objects.hash(major, minor);
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}
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@Override
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public boolean equals(Object o) {
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return ((o instanceof HalVersion) && (o == this || compareTo((HalVersion) o) == 0));
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}
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/**
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* @return True if the version is greater than the compared version.
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*/
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public boolean greater(HalVersion ver) {
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return compareTo(ver) > 0;
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}
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/**
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* @return True if the version is less than the compared version.
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*/
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public boolean less(HalVersion ver) {
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return compareTo(ver) < 0;
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}
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/**
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* @return True if the version is greater than or equal to the compared version.
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*/
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public boolean greaterOrEqual(HalVersion ver) {
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return greater(ver) || equals(ver);
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}
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/**
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* @return True if the version is less than or equal to the compared version.
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*/
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public boolean lessOrEqual(HalVersion ver) {
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return less(ver) || equals(ver);
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}
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@Override
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public String toString() {
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return major + "." + minor;
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}
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}
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