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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.app.timezone;
import android.annotation.Nullable;
import android.os.Parcel;
import android.os.Parcelable;
/**
* Versioning information about a distro's format or a device's supported format.
*
* <p>The following properties are included:
* <dl>
* <dt>majorVersion</dt>
* <dd>the major distro format version. Major versions differences are not compatible - e.g.
* 2 is not compatible with 1 or 3.</dd>
* <dt>minorVersion</dt>
* <dd>the minor distro format version. Minor versions should be backwards compatible iff the
* major versions match exactly, i.e. version 2.2 will be compatible with 2.1 devices but not
* 2.3 devices.</dd>
* </dl>
*
* @hide
*/
public final class DistroFormatVersion implements Parcelable {
private final int mMajorVersion;
private final int mMinorVersion;
public DistroFormatVersion(int majorVersion, int minorVersion) {
mMajorVersion = Utils.validateVersion("major", majorVersion);
mMinorVersion = Utils.validateVersion("minor", minorVersion);
}
public static final @android.annotation.NonNull Creator<DistroFormatVersion> CREATOR = new Creator<DistroFormatVersion>() {
public DistroFormatVersion createFromParcel(Parcel in) {
int majorVersion = in.readInt();
int minorVersion = in.readInt();
return new DistroFormatVersion(majorVersion, minorVersion);
}
public DistroFormatVersion[] newArray(int size) {
return new DistroFormatVersion[size];
}
};
public int getMajorVersion() {
return mMajorVersion;
}
public int getMinorVersion() {
return mMinorVersion;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel out, int flags) {
out.writeInt(mMajorVersion);
out.writeInt(mMinorVersion);
}
/**
* If this object describes a device's supported version and the parameter describes a distro's
* version, this method returns whether the device would accept the distro.
*/
public boolean supports(DistroFormatVersion distroFormatVersion) {
return mMajorVersion == distroFormatVersion.mMajorVersion
&& mMinorVersion <= distroFormatVersion.mMinorVersion;
}
@Override
public boolean equals(@Nullable Object o) {
if (this == o) {
return true;
}
if (o == null || getClass() != o.getClass()) {
return false;
}
DistroFormatVersion that = (DistroFormatVersion) o;
if (mMajorVersion != that.mMajorVersion) {
return false;
}
return mMinorVersion == that.mMinorVersion;
}
@Override
public int hashCode() {
int result = mMajorVersion;
result = 31 * result + mMinorVersion;
return result;
}
@Override
public String toString() {
return "DistroFormatVersion{"
+ "mMajorVersion=" + mMajorVersion
+ ", mMinorVersion=" + mMinorVersion
+ '}';
}
}
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