[server] Add missing new class

1 files changed, 76 insertions, 0 deletions

diff --git a/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/maintenance/DeleteOldUsers.java b/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/maintenance/DeleteOldUsers.java
new file mode 100644
index 00000000..ebc0cfbd
--- /dev/null
+++ b/dozentenmodulserver/src/main/java/org/openslx/bwlp/sat/maintenance/DeleteOldUsers.java
@@ -0,0 +1,76 @@
+package org.openslx.bwlp.sat.maintenance;
+
+import java.sql.SQLException;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.log4j.Logger;
+import org.joda.time.DateTime;
+import org.openslx.bwlp.sat.database.mappers.DbLog;
+import org.openslx.bwlp.sat.database.mappers.DbUser;
+import org.openslx.bwlp.sat.util.Formatter;
+import org.openslx.bwlp.thrift.iface.UserInfo;
+import org.openslx.util.QuickTimer;
+import org.openslx.util.QuickTimer.Task;
+
+/**
+ * Delete old image versions (images that reached their expire time).
+ */
+public class DeleteOldUsers implements Runnable {
+
+	private static final Logger LOGGER = Logger.getLogger(DeleteOldUsers.class);
+
+	private static final DeleteOldUsers instance = new DeleteOldUsers();
+
+	private static long blockedUntil = 0;
+
+	/**
+	 * Initialize the delete task. This schedules a timer that runs
+	 * every 6 minutes. If the hour of day reaches 1, it will fire
+	 * the task, and block it from running for the next 12 hours.
+	 */
+	public synchronized static void init() {
+		if (blockedUntil != 0)
+			return;
+		blockedUntil = 1;
+		QuickTimer.scheduleAtFixedRate(new Task() {
+			@Override
+			public void fire() {
+				if (blockedUntil > System.currentTimeMillis())
+					return;
+				DateTime now = DateTime.now();
+				if (now.getHourOfDay() != 1 || now.getMinuteOfHour() > 15)
+					return;
+				start();
+			}
+		}, TimeUnit.MINUTES.toMillis(5), TimeUnit.MINUTES.toMillis(6));
+	}
+
+	public synchronized static void start() {
+		if (blockedUntil > System.currentTimeMillis())
+			return;
+		if (Maintenance.trySubmit(instance)) {
+			blockedUntil = System.currentTimeMillis() + TimeUnit.HOURS.toMillis(12);
+		}
+	}
+
+	@Override
+	public void run() {
+		List<UserInfo> inactiveUsers;
+		try {
+			inactiveUsers = DbUser.getInactive();
+		} catch (SQLException e) {
+			LOGGER.warn("Cannot get list of old users for deletion");
+			return;
+		}
+		for (UserInfo user : inactiveUsers) {
+			try {
+				DbUser.deleteUser(user);
+				DbLog.log((String)null, null, "Deleted inactive user " + Formatter.userFullName(user));
+			} catch (SQLException e) {
+				// Ignore, constraint
+			}
+		}
+	}
+
+}