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Add log rules

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This commit is contained in:
JeremyStar™ 2024-06-27 19:26:37 +02:00
parent 9e4cfee89a
commit 79dbc65f63
Signed by: JeremyStarTM
GPG key ID: E366BAEF67E4704D
3 changed files with 152 additions and 10 deletions
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68
base/src/main/java/de/staropensource/sosengine/base/classes/logging/LogRule.java Normal file
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@ -0,0 +1,68 @@
/*
* STAROPENSOURCE ENGINE SOURCE FILE
* Copyright (c) 2024 The StarOpenSource Engine Contributors
* Licensed under the GNU Affero General Public License v3
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package de.staropensource.sosengine.base.classes.logging;
import de.staropensource.sosengine.base.types.LogIssuer;
import de.staropensource.sosengine.base.types.LogLevel;
import lombok.Getter;
import org.jetbrains.annotations.NotNull;
/**
* Defines a rule used during logging to allow or prevent certain log calls.
*
* @since 1-alpha1
*/
@SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
@Getter
public class LogRule {
/**
* Determines if the log rule should disallow or permit matching log calls.
*
* @see LogRuleType
* @since 1-alpha1
*
* -- GETTER --
* Returns if the log rule should disallow or permit matching log calls.
*
* @return rule type
* @see LogRuleType
* @since 1-alpha1
*/
@NotNull
private final LogRuleType type;
/**
* Constructor.
*/
public LogRule(@NotNull LogRuleType type) {
this.type = type;
}
/**
* Evaluates the rule and returns if the rule matches.
*
* @param issuer issuer
* @param level log level
* @param message raw message
*/
public boolean evaluate(@NotNull LogIssuer issuer, @NotNull LogLevel level, @NotNull String message) {
return false;
}
}

43
base/src/main/java/de/staropensource/sosengine/base/classes/logging/LogRuleType.java Normal file
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@ -0,0 +1,43 @@
/*
* STAROPENSOURCE ENGINE SOURCE FILE
* Copyright (c) 2024 The StarOpenSource Engine Contributors
* Licensed under the GNU Affero General Public License v3
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package de.staropensource.sosengine.base.classes.logging;
/**
* Used for determining if a {@link LogRule} should allow (whitelist) or prevent (blacklist) log call processing.
*
* @since 1-alpha1
*/
@SuppressWarnings({ "unused" })
public enum LogRuleType {
/**
* Indicates that log calls matching this rule will always be allowed, even if blacklisted.
*
* @since 1-alpha1
*/
WHITELIST,
/**
* Indicates that log calls matching this will always be disallowed except when whitelisted.
*
* @see LogRuleType#WHITELIST
* @since 1-alpha1
*/
BLACKLIST
}

51
base/src/main/java/de/staropensource/sosengine/base/logging/Logger.java
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@ -21,6 +21,8 @@ package de.staropensource.sosengine.base.logging;
import de.staropensource.sosengine.base.Engine;
import de.staropensource.sosengine.base.EngineConfiguration;
import de.staropensource.sosengine.base.classes.logging.LogRule;
import de.staropensource.sosengine.base.classes.logging.LogRuleType;
import de.staropensource.sosengine.base.classes.logging.LoggerImpl;
import de.staropensource.sosengine.base.classes.Placeholder;
import de.staropensource.sosengine.base.events.LogEvent;
@ -94,6 +96,20 @@ public final class Logger {
*/
private static final LinkedList<QueuedLogMessage> queuedMessages = new LinkedList<>();
/**
* Contains all active {@link LogRule}s.
*
* @since 1-alpha1
*
* -- GETTER --
* Returns all active {@link LogRule}s.
*
* @return active rules
* @since 1-alpha1
*/
@Getter
private static final List<LogRule> activeRules = new ArrayList<>();
/**
* Constructor.
*
@ -109,24 +125,25 @@ public final class Logger {
*/
public static void startLoggingThread() {
if (loggingThread == null) {
// Logging thread not defined, create and start new one
loggingThread = Thread.ofPlatform().start(() -> {
while (true) {
while (true) { // Run in loop
// Stop thread when engine is shutting down
if (Engine.getInstance().isShuttingDown())
return;
// Process all log messages
flushLogMessages();
// Sleep for whatever has been configured
try {
//noinspection BusyWait
Thread.sleep(EngineConfiguration.getInstance().getLoggerPollingSpeed());
} catch (Exception ignored) {
}
if (Engine.getInstance().isShuttingDown())
return;
} catch (Exception ignored) {}
}
});
} else {
// Restart logging thread if dead
if (!loggingThread.isAlive())
loggingThread.start();
}
@ -138,12 +155,15 @@ public final class Logger {
* @since 1-alpha1
*/
public static synchronized void flushLogMessages() {
// Only execute code if queued messages list is not empty
if (!queuedMessages.isEmpty()) {
// Clone queued messages and clear original to avoid issues
//noinspection unchecked
LinkedList<QueuedLogMessage> queuedMessagesCloned = (LinkedList<QueuedLogMessage>) queuedMessages.clone();
queuedMessages.clear();
for (QueuedLogMessage queuedLogMessage : queuedMessagesCloned) {// Check if level is allowed
// Invoke processLogMessage method for every queued message
for (QueuedLogMessage queuedLogMessage : queuedMessagesCloned) {
processLogMessage(queuedLogMessage.getIssuer(), queuedLogMessage.getLevel(), queuedLogMessage.getMessage());
}
}
@ -158,13 +178,22 @@ public final class Logger {
* @since 1-alpha1
*/
private static void processLogMessage(@NotNull LogIssuer issuer, @NotNull LogLevel level, @NotNull String message) {
// Check if level is allowed
if (level.compareTo(EngineConfiguration.getInstance().getLoggerLevel()) < 0)
return;
// Evaluate all active rules
for (LogRule rule : activeRules) {
if (rule.evaluate(issuer, level, message)) {
if (rule.getType() == LogRuleType.WHITELIST) break; // Continue processing
if (rule.getType() == LogRuleType.BLACKLIST) return; // Cancel processing
}
}
// Template for now, final log message later
String base = EngineConfiguration.getInstance().getLoggerTemplate();
// Execute LoggerImpl#prePlaceholder
// Invoke LoggerImpl#prePlaceholder
base = loggerImplementation.prePlaceholder(level, issuer, base);
// Create list of temporary placeholders
@ -183,14 +212,14 @@ public final class Logger {
// Replace placeholders
base = PlaceholderEngine.getInstance().process(base, temporaryPlaceholders);
// Execute LoggerImpl#postPlaceholder
// Invoke LoggerImpl#postPlaceholder
base = loggerImplementation.postPlaceholder(level, issuer, base);
// Call event
if (!issuer.getClazz().getName().equals("de.staropensource.sosengine.slf4j_compat.CompatibilityLogger"))
new LogEvent().callEvent(level, issuer, message);
// Print log message
// Print log message by invoking LoggerImpl#print
loggerImplementation.print(level, issuer, base);
}
@ -207,8 +236,10 @@ public final class Logger {
if (Engine.getInstance() == null) return;
if (EngineConfiguration.getInstance().isOptimizeLogging())
// Optimizations enabled, add to message queue
queuedMessages.add(new QueuedLogMessage(issuer, level, message));
else
// Optimizations disabled, print right away
processLogMessage(issuer, level, message);
}