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