-/*******************************************************************************\r
- * Copyright (c) 2007, 2011 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.db.layer0.util;\r
-\r
-import java.util.function.Consumer;\r
-\r
-import org.eclipse.core.runtime.IProgressMonitor;\r
-import org.eclipse.core.runtime.NullProgressMonitor;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Session;\r
-import org.simantics.db.WriteGraph;\r
-import org.simantics.db.common.request.WriteRequest;\r
-import org.simantics.db.common.utils.Logger;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.service.ClusterControl;\r
-import org.simantics.db.service.LifecycleSupport;\r
-import org.simantics.db.service.QueryControl;\r
-import org.simantics.utils.DataContainer;\r
-import org.simantics.utils.datastructures.Callback;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class SessionGarbageCollection {\r
- /**\r
- * collect everything possible, default target is 0 queries.\r
- */\r
- private static int DEFAULT_ALLOWED_TIME = 300;\r
- public static int getDefaultQueryTarget() {\r
- return DEFAULT_ALLOWED_TIME;\r
- }\r
- public static void setDefaultAllowedTime(int a) {\r
- DEFAULT_ALLOWED_TIME = a;\r
- }\r
- /**\r
- * Default maximum cluster memory consumption target is 32MB.\r
- */\r
- private static int DEFAULT_CLUSTER_TARGET = -1;\r
- public static int getDefaultClusterTarget() {\r
- return DEFAULT_CLUSTER_TARGET;\r
- }\r
- public static void setDefaultClusterTarget(int a) {\r
- DEFAULT_CLUSTER_TARGET = a;\r
- }\r
- /**\r
- * @param monitor <code>null</code> if progress monitor not available\r
- * @param session the session to GC\r
- * @param sync <code>true</code> to block until gc is completed\r
- * @param errorCallback callback for any errors occuring during the\r
- * operation or <code>null</code> to ignore errors\r
- */\r
- public static boolean gc(IProgressMonitor monitor, Session session, boolean sync,\r
- final Consumer<DatabaseException> errorCallback) {\r
- long took = gc(monitor, session, sync, errorCallback, DEFAULT_ALLOWED_TIME, DEFAULT_CLUSTER_TARGET);\r
- return ((16*took) / DEFAULT_ALLOWED_TIME) > 15;\r
- }\r
- \r
- public static void gc(ReadGraph graph, final int allowedTimeInMs, final int clusterTarget) throws DatabaseException {\r
- doIt(null, graph, allowedTimeInMs, clusterTarget);\r
- }\r
-\r
- private static void doIt(IProgressMonitor _monitor, ReadGraph graph, final int allowedTimeInMs, final int clusterTarget) {\r
- if(_monitor == null) _monitor = new NullProgressMonitor();\r
- QueryControl qc = graph.getService(QueryControl.class);\r
- ClusterControl cc = graph.getService(ClusterControl.class);\r
- _monitor.beginTask("Collect clusters", IProgressMonitor.UNKNOWN);\r
- cc.gc(graph, clusterTarget);\r
- _monitor.beginTask("Collect queries", IProgressMonitor.UNKNOWN);\r
- qc.gc(graph, allowedTimeInMs);\r
- }\r
- \r
- /**\r
- * @param monitor\r
- * @param session\r
- * @param sync\r
- * @param errorCallback\r
- */\r
- /**\r
- * @param monitor <code>null</code> if progress monitor not available\r
- * @param session the session to GC\r
- * @param sync <code>true</code> to block until gc is completed\r
- * @param errorCallback callback for any errors occuring during the\r
- * operation or <code>null</code> to ignore errors\r
- * @param allowedTimeInMs the time allowed for query collection in ms\r
- * @param clusterTarget target for the maximum amount of memory in bytes to\r
- * be consumed by cluster caches after collection.\r
- */\r
- public static long gc(IProgressMonitor monitor, Session session, boolean sync,\r
- final Consumer<DatabaseException> errorCallback, final int allowedTimeInMs, final int clusterTarget) {\r
- if (monitor == null)\r
- monitor = new NullProgressMonitor();\r
- final IProgressMonitor _monitor = monitor;\r
- if (session == null)\r
- throw new NullPointerException("null session");\r
-\r
- final DataContainer<Long> took = new DataContainer<Long>(0L);\r
- \r
- WriteRequest request = new WriteRequest() {\r
- @Override\r
- public void perform(WriteGraph graph) throws DatabaseException {\r
- long start = System.nanoTime();\r
- doIt(_monitor, graph, allowedTimeInMs, clusterTarget);\r
- long duration = System.nanoTime()-start;\r
- took.set((long)(duration*1e-6));\r
- }\r
- };\r
- \r
- LifecycleSupport lfs = session.peekService(LifecycleSupport.class);\r
- if (lfs == null || lfs.isClosed() || lfs.isClosing())\r
- return 0L;\r
- \r
- if (sync) {\r
- try {\r
- session.syncRequest(request);\r
- } catch (DatabaseException e) {\r
- if (errorCallback != null)\r
- errorCallback.accept(e);\r
- else\r
- Logger.defaultLogError(e);\r
- }\r
- } else {\r
- session.asyncRequest(request, new Callback<DatabaseException>() {\r
- @Override\r
- public void run(DatabaseException e) {\r
- if (e != null) {\r
- if (errorCallback != null)\r
- errorCallback.accept(e);\r
- else\r
- Logger.defaultLogError(e);\r
- }\r
- }\r
- });\r
- }\r
- \r
- return took.get();\r
- \r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2011 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.layer0.util;
+
+import java.util.function.Consumer;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.NullProgressMonitor;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Session;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.common.utils.Logger;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.ClusterControl;
+import org.simantics.db.service.LifecycleSupport;
+import org.simantics.db.service.QueryControl;
+import org.simantics.utils.DataContainer;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class SessionGarbageCollection {
+ /**
+ * collect everything possible, default target is 0 queries.
+ */
+ private static int DEFAULT_ALLOWED_TIME = 300;
+ public static int getDefaultQueryTarget() {
+ return DEFAULT_ALLOWED_TIME;
+ }
+ public static void setDefaultAllowedTime(int a) {
+ DEFAULT_ALLOWED_TIME = a;
+ }
+ /**
+ * Default maximum cluster memory consumption target is 32MB.
+ */
+ private static int DEFAULT_CLUSTER_TARGET = -1;
+ public static int getDefaultClusterTarget() {
+ return DEFAULT_CLUSTER_TARGET;
+ }
+ public static void setDefaultClusterTarget(int a) {
+ DEFAULT_CLUSTER_TARGET = a;
+ }
+ /**
+ * @param monitor <code>null</code> if progress monitor not available
+ * @param session the session to GC
+ * @param sync <code>true</code> to block until gc is completed
+ * @param errorCallback callback for any errors occuring during the
+ * operation or <code>null</code> to ignore errors
+ */
+ public static boolean gc(IProgressMonitor monitor, Session session, boolean sync,
+ final Consumer<DatabaseException> errorCallback) {
+ long took = gc(monitor, session, sync, errorCallback, DEFAULT_ALLOWED_TIME, DEFAULT_CLUSTER_TARGET);
+ return ((16*took) / DEFAULT_ALLOWED_TIME) > 15;
+ }
+
+ public static void gc(ReadGraph graph, final int allowedTimeInMs, final int clusterTarget) throws DatabaseException {
+ doIt(null, graph, allowedTimeInMs, clusterTarget);
+ }
+
+ public static void gc(IProgressMonitor monitor, ReadGraph graph, final int allowedTimeInMs, final int clusterTarget) throws DatabaseException {
+ doIt(monitor, graph, allowedTimeInMs, clusterTarget);
+ }
+
+ private static void doIt(IProgressMonitor _monitor, ReadGraph graph, final int allowedTimeInMs, final int clusterTarget) {
+ if(_monitor == null) _monitor = new NullProgressMonitor();
+ QueryControl qc = graph.getService(QueryControl.class);
+ ClusterControl cc = graph.getService(ClusterControl.class);
+ _monitor.beginTask("Collect clusters", IProgressMonitor.UNKNOWN);
+ //cc.gc(graph, clusterTarget);
+ if(clusterTarget == -1) {
+ int used = cc.used();
+ //System.err.println("session gc, cluster use = " + used);
+ int baseline = 32*(1<<20);
+ if(used > baseline) {
+ int dynamicTarget = (int)(0.95 * (used-baseline)) + baseline;
+ cc.gc(graph, dynamicTarget);
+ }
+ } else {
+ cc.gc(graph, clusterTarget);
+ }
+ _monitor.beginTask("Collect queries", IProgressMonitor.UNKNOWN);
+ qc.gc(graph, allowedTimeInMs);
+ }
+
+ /**
+ * @param monitor
+ * @param session
+ * @param sync
+ * @param errorCallback
+ */
+ /**
+ * @param monitor <code>null</code> if progress monitor not available
+ * @param session the session to GC
+ * @param sync <code>true</code> to block until gc is completed
+ * @param errorCallback callback for any errors occuring during the
+ * operation or <code>null</code> to ignore errors
+ * @param allowedTimeInMs the time allowed for query collection in ms
+ * @param clusterTarget target for the maximum amount of memory in bytes to
+ * be consumed by cluster caches after collection.
+ */
+ public static long gc(IProgressMonitor monitor, Session session, boolean sync,
+ final Consumer<DatabaseException> errorCallback, final int allowedTimeInMs, final int clusterTarget) {
+ if (monitor == null)
+ monitor = new NullProgressMonitor();
+ final IProgressMonitor _monitor = monitor;
+ if (session == null)
+ throw new NullPointerException("null session");
+
+ final DataContainer<Long> took = new DataContainer<Long>(0L);
+
+ WriteRequest request = new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ long start = System.nanoTime();
+ doIt(_monitor, graph, allowedTimeInMs, clusterTarget);
+ long duration = System.nanoTime()-start;
+ took.set((long)(duration*1e-6));
+ }
+ };
+
+ LifecycleSupport lfs = session.peekService(LifecycleSupport.class);
+ if (lfs == null || lfs.isClosed() || lfs.isClosing())
+ return 0L;
+
+ if (sync) {
+ try {
+ session.syncRequest(request);
+ } catch (DatabaseException e) {
+ if (errorCallback != null)
+ errorCallback.accept(e);
+ else
+ Logger.defaultLogError(e);
+ }
+ } else {
+ session.asyncRequest(request, e -> {
+ if (e != null) {
+ if (errorCallback != null)
+ errorCallback.accept(e);
+ else
+ Logger.defaultLogError(e);
+ }
+ });
+ }
+
+ return took.get();
+
+ }
+
+}
Code Review / simantics / platform.git / blobdiff