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Code Releases Wiki Activity

One more attempt at fixing dynamic logging reconfiguration

Browse Source 
- moved out of GBApplication to class Logging
- the main thing is: when start()ing the FileAppender again, it *must*
- be configured to be non-lazy, otherwise it won't open the stream ever again.
This commit is contained in:
cpfeiffer 2016-05-26 23:46:21 +02:00
parent 6e33c7364a
commit 50b7a02ef2
5 changed files with 257 additions and 77 deletions
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5
app/build.gradle
View File

@ -6,6 +6,8 @@ def ABORT_ON_CHECK_FAILURE=false
tasks.withType(Test) { systemProperty 'MiFirmwareDir', System.getProperty('MiFirmwareDir', null) }
// sourceSets.test.runtimeClasspath += File('src/main/assets')
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
@ -42,6 +44,8 @@ android {
}
dependencies {
// testCompile 'ch.qos.logback:logback-classic:1.1.3'
// testCompile 'ch.qos.logback:logback-core:1.1.3'
testCompile 'junit:junit:4.12'
testCompile "org.mockito:mockito-core:1.9.5"
@ -100,7 +104,6 @@ task pmd(type: Pmd) {
}
}
task findbugs(type: FindBugs) {
ignoreFailures = !ABORT_ON_CHECK_FAILURE
effort = "default"

87
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBApplication.java
View File

@ -20,9 +20,6 @@ import android.support.v4.content.LocalBroadcastManager;
import android.util.Log;
import android.util.TypedValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import java.util.HashSet;
@ -30,8 +27,6 @@ import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;
import nodomain.freeyourgadget.gadgetbridge.database.ActivityDatabaseHandler;
import nodomain.freeyourgadget.gadgetbridge.database.DBConstants;
import nodomain.freeyourgadget.gadgetbridge.database.DBHandler;
@ -62,7 +57,6 @@ public class GBApplication extends Application {
//if preferences have to be migrated, increment the following and add the migration logic in migratePrefs below; see http://stackoverflow.com/questions/16397848/how-can-i-migrate-android-preferences-with-a-new-version
private static final int CURRENT_PREFS_VERSION = 2;
private static LimitedQueue mIDSenderLookup = new LimitedQueue(16);
private static Appender<ILoggingEvent> fileLogger;
private static Prefs prefs;
private static GBPrefs gbPrefs;
/**
@ -72,6 +66,13 @@ public class GBApplication extends Application {
public static final String ACTION_QUIT
= "nodomain.freeyourgadget.gadgetbridge.gbapplication.action.quit";
private static Logging logging = new Logging() {
@Override
protected String createLogDirectory() throws IOException {
File dir = FileUtils.getExternalFilesDir();
return dir.getAbsolutePath();
}
};
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
@ -114,11 +115,6 @@ public class GBApplication extends Application {
}
setupExceptionHandler();
// For debugging problems with the logback configuration
// LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
// print logback's internal status
// StatusPrinter.print(lc);
// Logger logger = LoggerFactory.getLogger(GBApplication.class);
deviceService = createDeviceService();
GB.environment = GBEnvironment.createDeviceEnvironment();
@ -138,6 +134,10 @@ public class GBApplication extends Application {
// db.close();
}
public static void setupLogging(boolean enabled) {
logging.setupLogging(enabled);
}
private void setupExceptionHandler() {
LoggingExceptionHandler handler = new LoggingExceptionHandler(Thread.getDefaultUncaughtExceptionHandler());
Thread.setDefaultUncaughtExceptionHandler(handler);
@ -147,71 +147,6 @@ public class GBApplication extends Application {
return prefs.getBoolean("log_to_file", false);
}
public static void setupLogging(boolean enable) {
try {
if (fileLogger == null) {
File dir = FileUtils.getExternalFilesDir();
// used by assets/logback.xml since the location cannot be statically determined
System.setProperty("GB_LOGFILES_DIR", dir.getAbsolutePath());
rememberFileLogger();
}
if (enable) {
startFileLogger();
} else {
stopFileLogger();
}
getLogger().info("Gadgetbridge version: " + BuildConfig.VERSION_NAME);
} catch (IOException ex) {
Log.e("GBApplication", "External files dir not available, cannot log to file", ex);
stopFileLogger();
}
}
private static void startFileLogger() {
if (fileLogger != null && !fileLogger.isStarted()) {
addFileLogger(fileLogger);
fileLogger.start();
}
}
private static void stopFileLogger() {
if (fileLogger != null && fileLogger.isStarted()) {
fileLogger.stop();
removeFileLogger(fileLogger);
}
}
private static void rememberFileLogger() {
ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
fileLogger = root.getAppender("FILE");
}
private static void addFileLogger(Appender<ILoggingEvent> fileLogger) {
try {
ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
if (!root.isAttached(fileLogger)) {
root.addAppender(fileLogger);
}
} catch (Throwable ex) {
Log.e("GBApplication", "Error adding logger FILE appender", ex);
}
}
private static void removeFileLogger(Appender<ILoggingEvent> fileLogger) {
try {
ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
if (root.isAttached(fileLogger)) {
root.detachAppender(fileLogger);
}
} catch (Throwable ex) {
Log.e("GBApplication", "Error removing logger FILE appender", ex);
}
}
private static Logger getLogger() {
return LoggerFactory.getLogger(GBApplication.class);
}
public static Context getContext() {
return context;
}

128
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/Logging.java Normal file
View File

@ -0,0 +1,128 @@
package nodomain.freeyourgadget.gadgetbridge;
import android.util.Log;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import ch.qos.logback.classic.LoggerContext;
import ch.qos.logback.classic.spi.ILoggingEvent;
import ch.qos.logback.core.Appender;
import ch.qos.logback.core.FileAppender;
import ch.qos.logback.core.encoder.Encoder;
import ch.qos.logback.core.encoder.LayoutWrappingEncoder;
import ch.qos.logback.core.util.StatusPrinter;
public abstract class Logging {
public static final String PROP_LOGFILES_DIR = "GB_LOGFILES_DIR";
private FileAppender<ILoggingEvent> fileLogger;
public void setupLogging(boolean enable) {
try {
if (fileLogger == null) {
init();
}
if (enable) {
startFileLogger();
} else {
stopFileLogger();
}
getLogger().info("Gadgetbridge version: " + BuildConfig.VERSION_NAME);
} catch (IOException ex) {
Log.e("GBApplication", "External files dir not available, cannot log to file", ex);
stopFileLogger();
}
}
public void debugLoggingConfiguration() {
// For debugging problems with the logback configuration
LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
// print logback's internal status
StatusPrinter.print(lc);
// Logger logger = LoggerFactory.getLogger(Logging.class);
}
protected abstract String createLogDirectory() throws IOException;
protected void init() throws IOException {
String dir = createLogDirectory();
if (dir == null) {
throw new IllegalArgumentException("log directory must not be null");
}
// used by assets/logback.xml since the location cannot be statically determined
System.setProperty(PROP_LOGFILES_DIR, dir);
rememberFileLogger();
}
private Logger getLogger() {
return LoggerFactory.getLogger(Logging.class);
}
private void startFileLogger() {
if (fileLogger != null && !fileLogger.isStarted()) {
addFileLogger(fileLogger);
fileLogger.setLazy(false); // hack to make sure that start() actually opens the file
fileLogger.start();
}
}
private void stopFileLogger() {
if (fileLogger != null && fileLogger.isStarted()) {
fileLogger.stop();
removeFileLogger(fileLogger);
}
}
private void rememberFileLogger() {
ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
fileLogger = (FileAppender<ILoggingEvent>) root.getAppender("FILE");
}
private void addFileLogger(Appender<ILoggingEvent> fileLogger) {
try {
ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
if (!root.isAttached(fileLogger)) {
root.addAppender(fileLogger);
}
} catch (Throwable ex) {
Log.e("GBApplication", "Error adding logger FILE appender", ex);
}
}
private void removeFileLogger(Appender<ILoggingEvent> fileLogger) {
try {
ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
if (root.isAttached(fileLogger)) {
root.detachAppender(fileLogger);
}
} catch (Throwable ex) {
Log.e("GBApplication", "Error removing logger FILE appender", ex);
}
}
public FileAppender<ILoggingEvent> getFileLogger() {
return fileLogger;
}
public boolean setImmediateFlush(boolean enable) {
FileAppender<ILoggingEvent> fileLogger = getFileLogger();
Encoder<ILoggingEvent> encoder = fileLogger.getEncoder();
if (encoder instanceof LayoutWrappingEncoder) {
((LayoutWrappingEncoder) encoder).setImmediateFlush(enable);
return true;
}
return false;
}
public boolean isImmediateFlush() {
FileAppender<ILoggingEvent> fileLogger = getFileLogger();
Encoder<ILoggingEvent> encoder = fileLogger.getEncoder();
if (encoder instanceof LayoutWrappingEncoder) {
return ((LayoutWrappingEncoder) encoder).isImmediateFlush();
}
return false;
}
}

27
app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/FileUtils.java
View File

@ -182,4 +182,31 @@ public class FileUtils {
}
return out.toByteArray();
}
public static boolean deleteRecursively(File dir) {
if (!dir.exists()) {
return true;
}
if (dir.isFile()) {
return dir.delete();
}
for (File sub : dir.listFiles()) {
if (!deleteRecursively(sub)) {
return false;
}
}
return dir.delete();
}
public static File createTempDir(String prefix) throws IOException {
File parent = new File(System.getProperty("java.io.tmpdir", "/tmp"));
for (int i = 1; i < 100; i++) {
String name = prefix + (int) (Math.random() * 100000);
File dir = new File(parent, name);
if (dir.mkdirs()) {
return dir;
}
}
throw new IOException("Cannot create temporary directory in " + parent);
}
}

87
app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/LoggingTest.java Normal file
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@ -0,0 +1,87 @@
package nodomain.freeyourgadget.gadgetbridge.test;
import android.support.annotation.NonNull;
import junit.framework.AssertionFailedError;
import org.junit.After;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.File;
import java.io.IOException;
import nodomain.freeyourgadget.gadgetbridge.Logging;
import nodomain.freeyourgadget.gadgetbridge.util.FileUtils;
import static junit.framework.Assert.assertEquals;
import static junit.framework.Assert.assertFalse;
import static junit.framework.Assert.assertNotNull;
import static junit.framework.Assert.assertTrue;
import static junit.framework.Assert.fail;
public class LoggingTest {
@BeforeClass
public static void setupSuite() {
System.setProperty("logback.configurationFile", "logback.xml");
}
private Logging logging = new Logging() {
@Override
protected String createLogDirectory() throws IOException {
File dir = ensureLogFilesDir();
return dir.getAbsolutePath();
}
@NonNull
private File ensureLogFilesDir() throws IOException {
return FileUtils.createTempDir("logfiles");
}
};
@After
public void tearDown() {
assertTrue(FileUtils.deleteRecursively(getLogFilesDir()));
}
@NonNull
private File getLogFilesDir() {
String dirName = System.getProperty(Logging.PROP_LOGFILES_DIR);
if (dirName != null && dirName.length() > 5) {
File dir = new File(dirName);
return dir;
}
fail("Property " + Logging.PROP_LOGFILES_DIR + " has invalid value: " + dirName);
return null; // not reached
}
@Test
public void testToggleLogging() {
try {
File dir = getLogFilesDir();
} catch (AssertionFailedError ignored) {
// expected, as not yet set up
}
try {
logging.setupLogging(true);
File dir = getLogFilesDir();
assertEquals(1, dir.list().length);
assertNotNull(logging.getFileLogger());
assertTrue(logging.getFileLogger().isStarted());
logging.setupLogging(false);
assertNotNull(logging.getFileLogger());
assertFalse(logging.getFileLogger().isStarted());
logging.setupLogging(true);
assertNotNull(logging.getFileLogger());
assertTrue(logging.getFileLogger().isStarted());
} catch (AssertionFailedError ex) {
logging.debugLoggingConfiguration();
System.err.println(System.getProperty("java.class.path"));
throw ex;
}
}
}