115 lines
4.6 KiB
Java
115 lines
4.6 KiB
Java
/*
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* Copyright (C) 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.i18n.timezone;
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import com.android.i18n.timezone.TzDataSetVersion.TzDataSetException;
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import com.android.i18n.util.Log;
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import com.android.icu.util.Icu4cMetadata;
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import java.io.File;
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import java.io.IOException;
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/**
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* Provides APIs for obtaining metadata for the i18n library and lower-level
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* components like timezone.
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*
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* @hide
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*/
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@libcore.api.CorePlatformApi
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public class I18nModuleDebug {
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private static final String CORE_LIBRARY_TIMEZONE_DEBUG_PREFIX = "core_library.timezone.";
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private I18nModuleDebug() {}
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/**
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* Returns information about the Core Library for debugging.
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*/
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@libcore.api.CorePlatformApi
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public static DebugInfo getDebugInfo() {
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DebugInfo debugInfo = new DebugInfo();
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populateTimeZoneFilesInfo(debugInfo);
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populateTimeZoneLibraryReportedVersion(debugInfo);
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return debugInfo;
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}
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/**
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* Adds information about the available time zone file sets on the device to the supplied
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* {@link DebugInfo}. See also {@link #populateTimeZoneLibraryReportedVersion(DebugInfo)} for a method
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* that provides information about the time zone files actually in use by libraries.
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*/
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private static void populateTimeZoneFilesInfo(DebugInfo debugInfo) {
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String debugKeyPrefix = CORE_LIBRARY_TIMEZONE_DEBUG_PREFIX + "source.";
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// Time zone module tz data set.
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{
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String tzDataModulePrefix = debugKeyPrefix + "tzdata_module_";
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String versionFile =
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TimeZoneDataFiles.getTimeZoneModuleTzFile(TzDataSetVersion.DEFAULT_FILE_NAME);
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addTzDataSetVersionDebugInfo(versionFile, tzDataModulePrefix, debugInfo);
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}
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// /system tz data set.
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{
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String systemDirPrefix = debugKeyPrefix + "system_";
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String versionFile =
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TimeZoneDataFiles.getSystemTzFile(TzDataSetVersion.DEFAULT_FILE_NAME);
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addTzDataSetVersionDebugInfo(versionFile, systemDirPrefix, debugInfo);
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}
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}
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private static void addTzDataSetVersionDebugInfo(String tzDataSetVersionFile,
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String debugKeyPrefix, DebugInfo debugInfo) {
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File file = new File(tzDataSetVersionFile);
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String statusKey = debugKeyPrefix + "status";
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if (file.exists()) {
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try {
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TzDataSetVersion tzDataSetVersion =
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TzDataSetVersion.readFromFile(file);
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String formatVersionString = tzDataSetVersion.getFormatMajorVersion() + "."
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+ tzDataSetVersion.getFormatMinorVersion();
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debugInfo.addStringEntry(statusKey, "OK")
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.addStringEntry(debugKeyPrefix + "formatVersion", formatVersionString)
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.addStringEntry(debugKeyPrefix + "rulesVersion",
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tzDataSetVersion.getRulesVersion())
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.addStringEntry(debugKeyPrefix + "revision",
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tzDataSetVersion.getRevision());
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} catch (IOException | TzDataSetException e) {
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debugInfo.addStringEntry(statusKey, "ERROR");
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debugInfo.addStringEntry(debugKeyPrefix + "exception_class", e.getClass().getName());
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debugInfo.addStringEntry(debugKeyPrefix + "exception_msg", e.getMessage());
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Log.e("Error reading " + file, e);
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}
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} else {
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debugInfo.addStringEntry(statusKey, "NOT_FOUND");
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}
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}
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private static void populateTimeZoneLibraryReportedVersion(DebugInfo debugInfo) {
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String debugKeyPrefix = CORE_LIBRARY_TIMEZONE_DEBUG_PREFIX + "lib.";
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debugInfo.addStringEntry(
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debugKeyPrefix + "icu4j.tzdb_version",
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android.icu.util.TimeZone.getTZDataVersion());
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debugInfo.addStringEntry(
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debugKeyPrefix + "libcore.tzdb_version",
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ZoneInfoDb.getInstance().getVersion());
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debugInfo.addStringEntry(
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debugKeyPrefix + "icu4c.tzdb_version",
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Icu4cMetadata.getTzdbVersion());
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}
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}
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