121 lines
4.8 KiB
Java
121 lines
4.8 KiB
Java
/*
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* Copyright (C) 2017 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 android.provider;
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import android.annotation.SystemApi;
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import android.net.Uri;
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/**
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* A set of constants for implementing a time zone data content provider, which is used by the time
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* zone updater application.
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*
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* @hide
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*/
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@SystemApi
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public final class TimeZoneRulesDataContract {
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private TimeZoneRulesDataContract() {}
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/**
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* The authority that <em>must</em> be used for the time zone data content provider.
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* To be accepted by the time zone updater application it <em>must</em> be exposed by the
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* package specified in the config_timeZoneRulesDataPackage config value.
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*/
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public static final String AUTHORITY = "com.android.timezone";
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/** A content:// style uri to the authority for the time zone data content provider */
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private static final Uri AUTHORITY_URI = Uri.parse("content://" + AUTHORITY);
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/**
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* Defines fields exposed through the {@link Operation#CONTENT_URI} for describing a time zone
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* distro operation.
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*/
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public static final class Operation {
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/** Not instantiable. */
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private Operation() {
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}
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/**
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* The content:// style URI for determining what type of update is available.
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*
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* <p>The URI can be queried using
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* {@link android.content.ContentProvider#query(Uri, String[], String, String[], String)};
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* the result will be a cursor with a single row. If the {@link Operation#COLUMN_TYPE}
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* column is {@link Operation#TYPE_INSTALL} then
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* {@link android.content.ContentProvider#openFile(Uri, String)} can be used with "r" mode
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* to obtain the binary data.
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*/
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public static final Uri CONTENT_URI = Uri.withAppendedPath(AUTHORITY_URI, "operation");
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/**
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* The {@code String} column of the {@link #CONTENT_URI} that provides an int specifying
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* the type of operation to perform. See {@link #TYPE_NO_OP},
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* {@link #TYPE_UNINSTALL} and {@link #TYPE_INSTALL}.
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*/
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public static final String COLUMN_TYPE = "type";
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/**
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* An operation type used when the current time zone rules on device should be replaced by
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* a new set obtained via the {@link android.content.ContentProvider#openFile(Uri, String)}
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* method.
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*/
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public static final String TYPE_INSTALL = "INSTALL";
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/**
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* An operation type used when the current time zone rules on device should be uninstalled,
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* returning to the values held in the system partition.
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*/
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public static final String TYPE_UNINSTALL = "UNINSTALL";
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/**
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* An operation type used when the time zone rules on device should be left as they are.
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* This is not expected to be used in normal operation but a safe result in the event of an
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* error that cannot be recovered from.
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*/
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public static final String TYPE_NO_OP = "NOOP";
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/**
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* The {@code nullable int} column of the {@link #CONTENT_URI} that describes the major
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* version of the distro to be installed.
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* Only non-null if {@link #COLUMN_TYPE} contains {@link #TYPE_INSTALL}.
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*/
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public static final String COLUMN_DISTRO_MAJOR_VERSION = "distro_major_version";
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/**
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* The {@code nullable int} column of the {@link #CONTENT_URI} that describes the minor
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* version of the distro to be installed.
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* Only non-null if {@link #COLUMN_TYPE} contains {@link #TYPE_INSTALL}.
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*/
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public static final String COLUMN_DISTRO_MINOR_VERSION = "distro_minor_version";
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/**
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* The {@code nullable String} column of the {@link #CONTENT_URI} that describes the IANA
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* rules version of the distro to be installed.
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* Only non-null if {@link #COLUMN_TYPE} contains {@link #TYPE_INSTALL}.
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*/
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public static final String COLUMN_RULES_VERSION = "rules_version";
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/**
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* The {@code nullable int} column of the {@link #CONTENT_URI} that describes the revision
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* number of the distro to be installed.
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* Only non-null if {@link #COLUMN_TYPE} contains {@link #TYPE_INSTALL}.
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*/
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public static final String COLUMN_REVISION = "revision";
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}
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}
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