Merge branch 'develop' of https://github.com/sleuthkit/autopsy into develop

Core/src/org/sleuthkit/autopsy/report/ReportGenerator.java

@@ -686,6 +686,7 @@ class ReportGenerator {
                         NbBundle.getMessage(this.getClass(), "ReportGenerator.errors.reportErrorTitle"),
                         NbBundle.getMessage(this.getClass(), "ReportGenerator.errors.reportErrorText") + ex.getLocalizedMessage(),
                         MessageNotifyUtil.MessageType.ERROR);
+                logger.log(Level.SEVERE, "failed to generate reports", ex.getCause()); //NON-NLS
                 logger.log(Level.SEVERE, "failed to generate reports", ex); //NON-NLS
             } // catch and ignore if we were cancelled
             catch (java.util.concurrent.CancellationException ex) {

Core/src/org/sleuthkit/autopsy/timeline/Bundle.properties

@@ -1,4 +1,4 @@
-CTL_MakeTimeline="Timeline"
+CTL_MakeTimeline=Timeline
 CTL_TimeLineTopComponentAction=TimeLineTopComponent
 CTL_TimeLineTopComponent=Timeline Window
 HINT_TimeLineTopComponent=This is a Timeline window
@@ -24,7 +24,5 @@ TimelinePanel.jButton7.text=3d
 TimelinePanel.jButton2.text=1m
 TimelinePanel.jButton3.text=3m
 TimelinePanel.jButton4.text=2w
-OpenTimelineAction.title=Timeline
-OpenTimeLineAction.msgdlg.text=Could not create timeline, there are no data sources.
 ProgressWindow.progressHeader.text=\ 
 

Core/src/org/sleuthkit/autopsy/timeline/OpenTimelineAction.java

@@ -1,7 +1,7 @@
 /*
  * Autopsy Forensic Browser
  *
- * Copyright 2013 Basis Technology Corp.
+ * Copyright 2013-16 Basis Technology Corp.
  * Contact: carrier <at> sleuthkit <dot> org
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -18,8 +18,8 @@
  */
 package org.sleuthkit.autopsy.timeline;
 
+import java.io.IOException;
 import java.util.logging.Level;
-import javax.swing.JOptionPane;
 import org.openide.awt.ActionID;
 import org.openide.awt.ActionReference;
 import org.openide.awt.ActionReferences;
@@ -27,10 +27,10 @@ import org.openide.awt.ActionRegistration;
 import org.openide.util.HelpCtx;
 import org.openide.util.NbBundle;
 import org.openide.util.actions.CallableSystemAction;
-import org.openide.windows.WindowManager;
 import org.sleuthkit.autopsy.casemodule.Case;
 import org.sleuthkit.autopsy.core.Installer;
 import org.sleuthkit.autopsy.coreutils.Logger;
+import org.sleuthkit.autopsy.coreutils.MessageNotifyUtil;
 import org.sleuthkit.autopsy.coreutils.ThreadConfined;
 
 @ActionID(category = "Tools", id = "org.sleuthkit.autopsy.timeline.Timeline")
@@ -58,35 +58,39 @@ public class OpenTimelineAction extends CallableSystemAction {
         return Case.isCaseOpen() && fxInited;// && Case.getCurrentCase().hasData();
     }
 
+    @NbBundle.Messages({
+        "OpenTimelineAction.settingsErrorMessage=Failed to initialize timeline settings.",
+        "OpenTimeLineAction.msgdlg.text=Could not create timeline, there are no data sources."})
     @Override
     @ThreadConfined(type = ThreadConfined.ThreadType.AWT)
     public void performAction() {
-        //check case
+        try {
-        if (!Case.isCaseOpen()) {
+            Case currentCase = Case.getCurrentCase();
-            return;
+            if (currentCase.hasData() == false) {
+                MessageNotifyUtil.Message.info(Bundle.OpenTimeLineAction_msgdlg_text());
+                LOGGER.log(Level.INFO, "Could not create timeline, there are no data sources.");// NON-NLS
+                return;
+            }
+            try {
+                if (timeLineController == null) {
+                    timeLineController = new TimeLineController(currentCase);
+                } else if (timeLineController.getAutopsyCase() != currentCase) {
+                    timeLineController.shutDownTimeLine();
+                    timeLineController = new TimeLineController(currentCase);
+                }
+                timeLineController.openTimeLine();
+            } catch (IOException iOException) {
+                MessageNotifyUtil.Message.error(Bundle.OpenTimelineAction_settingsErrorMessage());
+                LOGGER.log(Level.SEVERE, "Failed to initialize per case timeline settings.", iOException);
+            }
+        } catch (IllegalStateException e) {
+            //there is no case...   Do nothing.
         }
-        final Case currentCase = Case.getCurrentCase();
-
-        if (currentCase.hasData() == false) {
-            JOptionPane.showMessageDialog(WindowManager.getDefault().getMainWindow(),
-                    NbBundle.getMessage(this.getClass(), "OpenTimeLineAction.msgdlg.text"));
-            LOGGER.log(Level.INFO, "Could not create timeline, there are no data sources.");// NON-NLS
-            return;
-        }
-
-        if (timeLineController == null) {
-            timeLineController = new TimeLineController(currentCase);
-        } else if (timeLineController.getAutopsyCase() != currentCase) {
-            timeLineController.closeTimeLine();
-            timeLineController = new TimeLineController(currentCase);
-        }
-
-        timeLineController.openTimeLine();
     }
 
     @Override
     public String getName() {
-        return NbBundle.getMessage(TimeLineTopComponent.class, "OpenTimelineAction.title");
+        return NbBundle.getMessage(OpenTimelineAction.class, "CTL_MakeTimeline");
     }
 
     @Override

Core/src/org/sleuthkit/autopsy/timeline/PerCaseTimelineProperties.java

@@ -0,0 +1,177 @@
+/*
+ * Autopsy Forensic Browser
+ *
+ * Copyright 2016 Basis Technology Corp.
+ * Contact: carrier <at> sleuthkit <dot> org
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.sleuthkit.autopsy.timeline;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Objects;
+import java.util.Properties;
+import org.apache.commons.lang3.StringUtils;
+import org.sleuthkit.autopsy.casemodule.Case;
+
+/**
+ * Provides access to per-case timeline properties (key-value store).
+ */
+class PerCaseTimelineProperties {
+
+    private static final String STALE_KEY = "stale"; //NON-NLS
+    private static final String WAS_INGEST_RUNNING_KEY = "was_ingest_running"; // NON-NLS
+
+    private final Case autoCase;
+    private final Path propertiesPath;
+
+    PerCaseTimelineProperties(Case c) {
+        Objects.requireNonNull(c, "Case must not be null");
+        this.autoCase = c;
+        propertiesPath = Paths.get(autoCase.getModuleDirectory(), "Timeline", "timeline.properties"); //NON-NLS
+    }
+
+    /**
+     * Is the DB stale, i.e. does it need to be updated because new datasources
+     * (eg) have been added to the case.
+     *
+     * @return true if the db is stale
+     *
+     * @throws IOException if there is a problem reading the state from disk
+     */
+    public synchronized boolean isDBStale() throws IOException {
+
+        String stale = getProperty(STALE_KEY);
+        return StringUtils.isBlank(stale) ? true : Boolean.valueOf(stale);
+
+    }
+
+    /**
+     * record the state of the events db as stale(true) or not stale(false).
+     *
+     * @param stale the new state of the event db. true for stale, false for not
+     *              stale.
+     *
+     * @throws IOException if there was a problem writing the state to disk.
+     */
+    public synchronized void setDbStale(Boolean stale) throws IOException {
+        setProperty(STALE_KEY, stale.toString());
+    }
+
+    /**
+     * Was ingest running the last time the database was updated?
+     *
+     * @return true if ingest was running the last time the db was updated
+     *
+     * @throws IOException if there was a problem reading from disk
+     */
+    public synchronized boolean wasIngestRunning() throws IOException {
+        String stale = getProperty(WAS_INGEST_RUNNING_KEY);
+        return StringUtils.isBlank(stale) ? true : Boolean.valueOf(stale);
+    }
+
+    /**
+     * record whether ingest was running during the last time the database was
+     * updated
+     *
+     * @param ingestRunning true if ingest was running
+     *
+     * @throws IOException if there was a problem writing to disk
+     */
+    public synchronized void setIngestRunning(Boolean ingestRunning) throws IOException {
+        setProperty(WAS_INGEST_RUNNING_KEY, ingestRunning.toString());
+    }
+
+    /**
+     * Get a {@link Path} to the properties file. If the file does not exist, it
+     * will be created.
+     *
+     * @return the Path to the properties file.
+     *
+     * @throws IOException if there was a problem creating the properties file
+     */
+    private synchronized Path getPropertiesPath() throws IOException {
+
+        if (!Files.exists(propertiesPath)) {
+            Path parent = propertiesPath.getParent();
+            Files.createDirectories(parent);
+            Files.createFile(propertiesPath);
+        }
+        return propertiesPath;
+    }
+
+    /**
+     * Returns the property with the given key.
+     *
+     * @param propertyKey - The property key to get the value for.
+     *
+     * @return - the value associated with the property.
+     *
+     * @throws IOException if there was a problem reading the property from disk
+     */
+    private synchronized String getProperty(String propertyKey) throws IOException {
+        return getProperties().getProperty(propertyKey);
+    }
+
+    /**
+     * Sets the given property to the given value.
+     *
+     * @param propertyKey   - The key of the property to be modified.
+     * @param propertyValue - the value to set the property to.
+     *
+     * @throws IOException if there was a problem writing the property to disk
+     */
+    private synchronized void setProperty(String propertyKey, String propertyValue) throws IOException {
+        Path propertiesFile = getPropertiesPath();
+        Properties props = getProperties(propertiesFile);
+        props.setProperty(propertyKey, propertyValue);
+
+        try (OutputStream fos = Files.newOutputStream(propertiesFile)) {
+            props.store(fos, ""); //NON-NLS
+        }
+    }
+
+    /**
+     * Get a {@link Properties} object used to store the timeline properties.
+     *
+     * @return a properties object
+     *
+     * @throws IOException if there was a problem reading the .properties file
+     */
+    private synchronized Properties getProperties() throws IOException {
+        return getProperties(getPropertiesPath());
+    }
+
+    /**
+     * Gets a {@link Properties} object populated form the given .properties
+     * file.
+     *
+     * @param propertiesFile a path to the .properties file to load
+     *
+     * @return a properties object
+     *
+     * @throws IOException if there was a problem reading the .properties file
+     */
+    private synchronized Properties getProperties(final Path propertiesFile) throws IOException {
+        try (InputStream inputStream = Files.newInputStream(propertiesFile)) {
+            Properties props = new Properties();
+            props.load(inputStream);
+            return props;
+        }
+    }
+}

Core/src/org/sleuthkit/autopsy/timeline/TimeLineController.java

@@ -1,7 +1,7 @@
 /*
  * Autopsy Forensic Browser
  *
- * Copyright 2014-2015 Basis Technology Corp.
+ * Copyright 2014-2016 Basis Technology Corp.
  * Contact: carrier <at> sleuthkit <dot> org
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -21,8 +21,7 @@ package org.sleuthkit.autopsy.timeline;
 import java.awt.HeadlessException;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
-import java.sql.ResultSet;
+import java.io.IOException;
-import java.sql.SQLException;
 import java.time.ZoneId;
 import java.util.ArrayList;
 import java.util.Collection;
@@ -33,7 +32,6 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.logging.Level;
 import javafx.application.Platform;
-import javafx.beans.InvalidationListener;
 import javafx.beans.Observable;
 import javafx.beans.property.ReadOnlyBooleanProperty;
 import javafx.beans.property.ReadOnlyBooleanWrapper;
@@ -49,7 +47,6 @@ import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.concurrent.Task;
 import javafx.concurrent.Worker;
-import javafx.scene.control.Dialog;
 import javax.annotation.concurrent.GuardedBy;
 import javax.annotation.concurrent.Immutable;
 import javax.swing.SwingUtilities;
@@ -83,9 +80,6 @@ import org.sleuthkit.autopsy.timeline.utils.IntervalUtils;
 import org.sleuthkit.autopsy.timeline.zooming.DescriptionLoD;
 import org.sleuthkit.autopsy.timeline.zooming.EventTypeZoomLevel;
 import org.sleuthkit.autopsy.timeline.zooming.ZoomParams;
-import org.sleuthkit.datamodel.SleuthkitCase;
-import org.sleuthkit.datamodel.SleuthkitCase.CaseDbQuery;
-import org.sleuthkit.datamodel.TskCoreException;
 
 /**
  * Controller in the MVC design along with model = {@link FilteredEventsModel}
@@ -139,9 +133,6 @@ public class TimeLineController {
 
     private final ReadOnlyStringWrapper status = new ReadOnlyStringWrapper();
 
-    @ThreadConfined(type = ThreadConfined.ThreadType.JFX)
-    private Dialog<?> currentDialog;
-
     /**
      * status is a string that will be displayed in the status bar as a kind of
      * user hint/information when it is not empty
@@ -156,12 +147,13 @@ public class TimeLineController {
         status.set(string);
     }
     private final Case autoCase;
+    private final PerCaseTimelineProperties perCaseTimelineProperties;
 
     @ThreadConfined(type = ThreadConfined.ThreadType.JFX)
-    private final ObservableList<DescriptionFilter> quickHideMaskFilters = FXCollections.observableArrayList();
+    private final ObservableList<DescriptionFilter> quickHideFilters = FXCollections.observableArrayList();
 
     public ObservableList<DescriptionFilter> getQuickHideFilters() {
-        return quickHideMaskFilters;
+        return quickHideFilters;
     }
 
     /**
@@ -219,13 +211,12 @@ public class TimeLineController {
     @GuardedBy("this")
     private final ReadOnlyObjectWrapper<ZoomParams> currentParams = new ReadOnlyObjectWrapper<>();
 
-    //all members should be access with the intrinsict lock of this object held
     //selected events (ie shown in the result viewer)
     @GuardedBy("this")
     private final ObservableList<Long> selectedEventIDs = FXCollections.<Long>synchronizedObservableList(FXCollections.<Long>observableArrayList());
 
     /**
-     * @return an unmodifiable list of the selected event ids
+     * @return a list of the selected event ids
      */
     synchronized public ObservableList<Long> getSelectedEventIDs() {
         return selectedEventIDs;
@@ -241,14 +232,8 @@ public class TimeLineController {
         return selectedTimeRange.getReadOnlyProperty();
     }
 
-    public ReadOnlyBooleanProperty getNewEventsFlag() {
+    public ReadOnlyBooleanProperty eventsDBStaleProperty() {
-        return newEventsFlag.getReadOnlyProperty();
+        return eventsDBStale.getReadOnlyProperty();
-    }
-
-    private final ReadOnlyBooleanWrapper needsHistogramRebuild = new ReadOnlyBooleanWrapper(false);
-
-    public ReadOnlyBooleanProperty getNeedsHistogramRebuild() {
-        return needsHistogramRebuild.getReadOnlyProperty();
     }
 
     synchronized public ReadOnlyBooleanProperty getCanAdvance() {
@@ -258,28 +243,26 @@ public class TimeLineController {
     synchronized public ReadOnlyBooleanProperty getCanRetreat() {
         return historyManager.getCanRetreat();
     }
-    private final ReadOnlyBooleanWrapper newEventsFlag = new ReadOnlyBooleanWrapper(false);
+    private final ReadOnlyBooleanWrapper eventsDBStale = new ReadOnlyBooleanWrapper(true);
 
     private final PromptDialogManager promptDialogManager = new PromptDialogManager(this);
 
-    public TimeLineController(Case autoCase) {
+    public TimeLineController(Case autoCase) throws IOException {
         this.autoCase = autoCase;
-
+        this.perCaseTimelineProperties = new PerCaseTimelineProperties(autoCase);
+        eventsDBStale.set(perCaseTimelineProperties.isDBStale());
+        eventsRepository = new EventsRepository(autoCase, currentParams.getReadOnlyProperty());
         /*
          * as the history manager's current state changes, modify the tags
          * filter to be in sync, and expose that as propery from
          * TimeLineController. Do we need to do this with datasource or hash hit
          * filters?
          */
-        historyManager.currentState().addListener(new InvalidationListener() {
+        historyManager.currentState().addListener((Observable observable) -> {
-            public void invalidated(Observable observable) {
+            ZoomParams historyManagerParams = historyManager.getCurrentState();
-                ZoomParams historyManagerParams = historyManager.getCurrentState();
+            eventsRepository.syncTagsFilter(historyManagerParams.getFilter().getTagsFilter());
-                eventsRepository.syncTagsFilter(historyManagerParams.getFilter().getTagsFilter());
+            currentParams.set(historyManagerParams);
-                currentParams.set(historyManagerParams);
-            }
         });
-
-        eventsRepository = new EventsRepository(autoCase, currentParams.getReadOnlyProperty());
         filteredEvents = eventsRepository.getEventsModel();
 
         InitialZoomState = new ZoomParams(filteredEvents.getSpanningInterval(),
@@ -316,19 +299,22 @@ public class TimeLineController {
     void rebuildRepo() {
         SwingUtilities.invokeLater(this::closeTimelineWindow);
         final CancellationProgressTask<?> rebuildRepository = eventsRepository.rebuildRepository();
+        boolean ingestRunning = IngestManager.getInstance().isIngestRunning();
         rebuildRepository.stateProperty().addListener((stateProperty, oldState, newSate) -> {
             //this will be on JFX thread
-            if (newSate == Worker.State.SUCCEEDED) {
+            setIngestRunning(ingestRunning);
-                //TODO: this looks hacky.  what is going on? should this be an event?
+            switch (newSate) {
-                needsHistogramRebuild.set(true);
+                case SUCCEEDED:
-                needsHistogramRebuild.set(false);
+                    setEventsDBStale(false);
-                SwingUtilities.invokeLater(TimeLineController.this::showWindow);
+                    SwingUtilities.invokeLater(TimeLineController.this::showWindow);
-
-                //TODO: should this be an event?
-                newEventsFlag.set(false);
-                historyManager.reset(filteredEvents.zoomParametersProperty().get());
-                TimeLineController.this.showFullRange();
 
+                    historyManager.reset(filteredEvents.zoomParametersProperty().get());
+                    TimeLineController.this.showFullRange();
+                    break;
+                case FAILED:
+                case CANCELLED:
+                    setEventsDBStale(true);
+                    break;
             }
         });
         promptDialogManager.showProgressDialog(rebuildRepository);
@@ -370,7 +356,7 @@ public class TimeLineController {
     }
 
     @ThreadConfined(type = ThreadConfined.ThreadType.AWT)
-    public void closeTimeLine() {
+    public void shutDownTimeLine() {
         if (mainFrame != null) {
             listeningToAutopsy = false;
             IngestManager.getInstance().removeIngestModuleEventListener(ingestModuleListener);
@@ -409,7 +395,7 @@ public class TimeLineController {
                 /*
                  * if the repo was not rebuilt at minimum rebuild the tags which
                  * may have been updated without our knowing it, since we
-                 * can't/aren't checking them. This should at elast be quick.
+                 * can't/aren't checking them. This should at least be quick.
                  * //TODO: can we check the tags to see if we need to do this?
                  */
                 if (checkAndPromptForRebuild() == false) {
@@ -425,7 +411,7 @@ public class TimeLineController {
     @ThreadConfined(type = ThreadConfined.ThreadType.JFX)
     private boolean checkAndPromptForRebuild() {
         //if the repo is empty just (r)ebuild it with out asking,  they can always cancel part way through;
-        if (eventsRepository.getLastObjID() == -1) {
+        if (eventsRepository.countAllEvents() == 0) {
             rebuildRepo();
             return true;
         }
@@ -440,7 +426,6 @@ public class TimeLineController {
         return false;
     }
 
-    @SuppressWarnings("deprecation") // TODO (EUR-733): Do not use SleuthkitCase.getLastObjectId 
     @ThreadConfined(type = ThreadConfined.ThreadType.ANY)
     @NbBundle.Messages({"TimeLineController.errorTitle=Timeline error.",
         "TimeLineController.outOfDate.errorMessage=Error determing if the timeline is out of date.  We will assume it should be updated.  See the logs for more details.",
@@ -450,23 +435,23 @@ public class TimeLineController {
         "TimeLineController.rebuildReasons.incompleteOldSchema=The Timeline events database was previously populated without incomplete information:  Some features may be unavailable or non-functional unless you update the events database."})
     private ArrayList<String> getRebuildReasons() {
         ArrayList<String> rebuildReasons = new ArrayList<>();
-        //if ingest was running during last rebuild, prompt to rebuild
+
-        if (eventsRepository.getWasIngestRunning()) {
-            rebuildReasons.add(Bundle.TimeLineController_rebuildReasons_ingestWasRunning());
-        }
-        final SleuthkitCase sleuthkitCase = autoCase.getSleuthkitCase();
         try {
-            //if the last artifact and object ids don't match between skc and tldb, prompt to rebuild
+            //if ingest was running during last rebuild, prompt to rebuild
-            if (sleuthkitCase.getLastObjectId() != eventsRepository.getLastObjID()
+            if (perCaseTimelineProperties.wasIngestRunning()) {
-                    || getCaseLastArtifactID(sleuthkitCase) != eventsRepository.getLastArtfactID()) {
+                rebuildReasons.add(Bundle.TimeLineController_rebuildReasons_ingestWasRunning());
-                rebuildReasons.add(Bundle.TimeLineController_rebuildReasons_outOfDate());
             }
-        } catch (TskCoreException ex) {
+
-            LOGGER.log(Level.SEVERE, "Error determing last object id from sleutkit case. We will assume the timeline is out of date.", ex); // NON-NLS
+        } catch (IOException ex) {
+            LOGGER.log(Level.SEVERE, "Error determing the state of the timeline db. We will assume the it is out of date.", ex); // NON-NLS
             MessageNotifyUtil.Notify.error(Bundle.TimeLineController_errorTitle(),
                     Bundle.TimeLineController_outOfDate_errorMessage());
             rebuildReasons.add(Bundle.TimeLineController_rebuildReasons_outOfDateError());
         }
+        //if the events db is stale, prompt to rebuild
+        if (isEventsDBStale()) {
+            rebuildReasons.add(Bundle.TimeLineController_rebuildReasons_outOfDate());
+        }
         // if the TLDB schema has been upgraded since last time TL ran, prompt for rebuild
         if (eventsRepository.hasNewColumns() == false) {
             rebuildReasons.add(Bundle.TimeLineController_rebuildReasons_incompleteOldSchema());
@@ -474,21 +459,6 @@ public class TimeLineController {
         return rebuildReasons;
     }
 
-    public static long getCaseLastArtifactID(final SleuthkitCase sleuthkitCase) {
-        //TODO: push this into sleuthkitCase
-        long caseLastArtfId = -1;
-        String query = "select Max(artifact_id) as max_id from blackboard_artifacts"; // NON-NLS //NOI18N
-        try (CaseDbQuery dbQuery = sleuthkitCase.executeQuery(query)) {
-            ResultSet resultSet = dbQuery.getResultSet();
-            while (resultSet.next()) {
-                caseLastArtfId = resultSet.getLong("max_id"); // NON-NLS //NOI18N
-            }
-        } catch (TskCoreException | SQLException ex) {
-            LOGGER.log(Level.SEVERE, "Error getting last artifact id: ", ex); // NON-NLS //NOI18N
-        }
-        return caseLastArtfId;
-    }
-
     /**
      * request a time range the same length as the given period and centered
      * around the middle of the currently selected range
@@ -752,6 +722,38 @@ public class TimeLineController {
         }
     }
 
+    /**
+     * is the events db out of date
+     *
+     * @return true if the events db is out of date , false otherwise
+     */
+    public boolean isEventsDBStale() {
+        return eventsDBStale.get();
+    }
+
+    /**
+     *
+     * @param stale the value of stale
+     */
+    private void setEventsDBStale(final Boolean stale) {
+        eventsDBStale.set(stale);
+        try {
+            perCaseTimelineProperties.setDbStale(stale);
+        } catch (IOException ex) {
+            MessageNotifyUtil.Notify.error("Timeline", "Failed to mark the timeline db as " + (stale ? "" : "not ") + "stale. Some results may be out of date or missing.");
+            LOGGER.log(Level.SEVERE, "Error marking the timeline db as stale.", ex);
+        }
+    }
+
+    private void setIngestRunning(boolean ingestRunning) {
+        try {
+            perCaseTimelineProperties.setIngestRunning(ingestRunning);
+        } catch (IOException ex) {
+            MessageNotifyUtil.Notify.error("Timeline", "Failed to mark the timeline db as populated while ingest was" + (ingestRunning ? "" : "not ") + "running. Some results may be out of date or missing.");
+            LOGGER.log(Level.SEVERE, "Error marking the ingest state while the timeline db was populated.", ex);
+        }
+    }
+
     private class AutopsyIngestModuleListener implements PropertyChangeListener {
 
         @Override
@@ -773,12 +775,10 @@ public class TimeLineController {
 
             switch (IngestManager.IngestModuleEvent.valueOf(evt.getPropertyName())) {
                 case CONTENT_CHANGED:
-                case DATA_ADDED:
                     break;
+                case DATA_ADDED:
                 case FILE_DONE:
-                    Platform.runLater(() -> {
+                    Platform.runLater(() -> setEventsDBStale(true));
-                        newEventsFlag.set(true);
-                    });
                     break;
             }
         }
@@ -804,32 +804,26 @@ public class TimeLineController {
         public void propertyChange(PropertyChangeEvent evt) {
             switch (Case.Events.valueOf(evt.getPropertyName())) {
                 case BLACKBOARD_ARTIFACT_TAG_ADDED:
-                    executor.submit(() -> {
+                    executor.submit(() -> filteredEvents.handleArtifactTagAdded((BlackBoardArtifactTagAddedEvent) evt));
-                        filteredEvents.handleArtifactTagAdded((BlackBoardArtifactTagAddedEvent) evt);
-                    });
                     break;
                 case BLACKBOARD_ARTIFACT_TAG_DELETED:
-                    executor.submit(() -> {
+                    executor.submit(() -> filteredEvents.handleArtifactTagDeleted((BlackBoardArtifactTagDeletedEvent) evt));
-                        filteredEvents.handleArtifactTagDeleted((BlackBoardArtifactTagDeletedEvent) evt);
-                    });
                     break;
                 case CONTENT_TAG_ADDED:
-                    executor.submit(() -> {
+                    executor.submit(() -> filteredEvents.handleContentTagAdded((ContentTagAddedEvent) evt));
-                        filteredEvents.handleContentTagAdded((ContentTagAddedEvent) evt);
-                    });
                     break;
                 case CONTENT_TAG_DELETED:
-                    executor.submit(() -> {
+                    executor.submit(() -> filteredEvents.handleContentTagDeleted((ContentTagDeletedEvent) evt));
-                        filteredEvents.handleContentTagDeleted((ContentTagDeletedEvent) evt);
-                    });
                     break;
                 case DATA_SOURCE_ADDED:
-                    SwingUtilities.invokeLater(TimeLineController.this::confirmOutOfDateRebuildIfWindowOpen);
+                    Platform.runLater(() -> {
+                        setEventsDBStale(true);
+                        SwingUtilities.invokeLater(TimeLineController.this::confirmOutOfDateRebuildIfWindowOpen);
+                    });
                     break;
-
                 case CURRENT_CASE:
                     OpenTimelineAction.invalidateController();
-                    SwingUtilities.invokeLater(TimeLineController.this::closeTimeLine);
+                    SwingUtilities.invokeLater(TimeLineController.this::shutDownTimeLine);
                     break;
             }
         }

Core/src/org/sleuthkit/autopsy/timeline/db/EventDB.java

@@ -84,28 +84,6 @@ import org.sqlite.SQLiteJDBCLoader;
  */
 public class EventDB {
 
-    /**
-     *
-     * enum to represent keys stored in db_info table
-     */
-    private enum DBInfoKey {
-
-        LAST_ARTIFACT_ID("last_artifact_id"), // NON-NLS
-        LAST_OBJECT_ID("last_object_id"), // NON-NLS
-        WAS_INGEST_RUNNING("was_ingest_running"); // NON-NLS
-
-        private final String keyName;
-
-        private DBInfoKey(String keyName) {
-            this.keyName = keyName;
-        }
-
-        @Override
-        public String toString() {
-            return keyName;
-        }
-    }
-
     private static final org.sleuthkit.autopsy.coreutils.Logger LOGGER = Logger.getLogger(EventDB.class.getName());
 
     static {
@@ -142,14 +120,12 @@ public class EventDB {
 
     private final String dbPath;
 
-    private PreparedStatement getDBInfoStmt;
     private PreparedStatement getEventByIDStmt;
     private PreparedStatement getMaxTimeStmt;
     private PreparedStatement getMinTimeStmt;
     private PreparedStatement getDataSourceIDsStmt;
     private PreparedStatement getHashSetNamesStmt;
     private PreparedStatement insertRowStmt;
-    private PreparedStatement recordDBInfoStmt;
     private PreparedStatement insertHashSetStmt;
     private PreparedStatement insertHashHitStmt;
     private PreparedStatement insertTagStmt;
@@ -394,14 +370,6 @@ public class EventDB {
         return resultIDs;
     }
 
-    long getLastArtfactID() {
-        return getDBInfo(DBInfoKey.LAST_ARTIFACT_ID, -1);
-    }
-
-    long getLastObjID() {
-        return getDBInfo(DBInfoKey.LAST_OBJECT_ID, -1);
-    }
-
     /**
      * this relies on the fact that no tskObj has ID 0 but 0 is the default
      * value for the datasource_id column in the events table.
@@ -489,10 +457,6 @@ public class EventDB {
         return -1l;
     }
 
-    boolean getWasIngestRunning() {
-        return getDBInfo(DBInfoKey.WAS_INGEST_RUNNING, 0) != 0;
-    }
-
     /**
      * create the table and indices if they don't already exist
      *
@@ -614,8 +578,6 @@ public class EventDB {
                 getMaxTimeStmt = prepareStatement("SELECT Max(time) AS max FROM events"); // NON-NLS
                 getMinTimeStmt = prepareStatement("SELECT Min(time) AS min FROM events"); // NON-NLS
                 getEventByIDStmt = prepareStatement("SELECT * FROM events WHERE event_id =  ?"); // NON-NLS
-                recordDBInfoStmt = prepareStatement("INSERT OR REPLACE INTO db_info (key, value) values (?, ?)"); // NON-NLS
-                getDBInfoStmt = prepareStatement("SELECT value FROM db_info WHERE key = ?"); // NON-NLS
                 insertHashSetStmt = prepareStatement("INSERT OR IGNORE INTO hash_sets (hash_set_name)  values (?)"); //NON-NLS
                 selectHashSetStmt = prepareStatement("SELECT hash_set_id FROM hash_sets WHERE hash_set_name = ?"); //NON-NLS
                 insertHashHitStmt = prepareStatement("INSERT OR IGNORE INTO hash_set_hits (hash_set_id, event_id) values (?,?)"); //NON-NLS
@@ -938,18 +900,6 @@ public class EventDB {
         return eventIDs;
     }
 
-    void recordLastArtifactID(long lastArtfID) {
-        recordDBInfo(DBInfoKey.LAST_ARTIFACT_ID, lastArtfID);
-    }
-
-    void recordLastObjID(Long lastObjID) {
-        recordDBInfo(DBInfoKey.LAST_OBJECT_ID, lastObjID);
-    }
-
-    void recordWasIngestRunning(boolean wasIngestRunning) {
-        recordDBInfo(DBInfoKey.WAS_INGEST_RUNNING, (wasIngestRunning ? 1 : 0));
-    }
-
     void rollBackTransaction(EventTransaction trans) {
         trans.rollback();
     }
@@ -983,8 +933,7 @@ public class EventDB {
 
         try {
             LOGGER.log(Level.INFO, String.format("sqlite-jdbc version %s loaded in %s mode", // NON-NLS
-                    SQLiteJDBCLoader.getVersion(), SQLiteJDBCLoader.isNativeMode()
+                    SQLiteJDBCLoader.getVersion(), SQLiteJDBCLoader.isNativeMode() ? "native" : "pure-java")); // NON-NLS
-                            ? "native" : "pure-java")); // NON-NLS
         } catch (Exception exception) {
             LOGGER.log(Level.SEVERE, "Failed to determine if sqlite-jdbc is loaded in native or pure-java mode.", exception); //NON-NLS
         }
@@ -1220,28 +1169,6 @@ public class EventDB {
         return useSubTypes ? "sub_type" : "base_type"; //NON-NLS
     }
 
-    private long getDBInfo(DBInfoKey key, long defaultValue) {
-        DBLock.lock();
-        try {
-            getDBInfoStmt.setString(1, key.toString());
-
-            try (ResultSet rs = getDBInfoStmt.executeQuery()) {
-                long result = defaultValue;
-                while (rs.next()) {
-                    result = rs.getLong("value"); // NON-NLS
-                }
-                return result;
-            } catch (SQLException ex) {
-                LOGGER.log(Level.SEVERE, "failed to read key: " + key + " from db_info", ex); // NON-NLS
-            } finally {
-                DBLock.unlock();
-            }
-        } catch (SQLException ex) {
-            LOGGER.log(Level.SEVERE, "failed to set key: " + key + " on getDBInfoStmt ", ex); // NON-NLS
-        }
-
-        return defaultValue;
-    }
 
     private PreparedStatement prepareStatement(String queryString) throws SQLException {
         PreparedStatement prepareStatement = con.prepareStatement(queryString);
@@ -1249,20 +1176,6 @@ public class EventDB {
         return prepareStatement;
     }
 
-    private void recordDBInfo(DBInfoKey key, long value) {
-        DBLock.lock();
-        try {
-            recordDBInfoStmt.setString(1, key.toString());
-            recordDBInfoStmt.setLong(2, value);
-            recordDBInfoStmt.executeUpdate();
-        } catch (SQLException ex) {
-            LOGGER.log(Level.SEVERE, "failed to set dbinfo  key: " + key + " value: " + value, ex); // NON-NLS
-        } finally {
-            DBLock.unlock();
-
-        }
-    }
-
     /**
      * inner class that can reference access database connection
      */

Core/src/org/sleuthkit/autopsy/timeline/db/EventsRepository.java

@@ -54,9 +54,7 @@ import org.sleuthkit.autopsy.casemodule.Case;
 import org.sleuthkit.autopsy.casemodule.services.TagsManager;
 import org.sleuthkit.autopsy.coreutils.Logger;
 import org.sleuthkit.autopsy.coreutils.ThreadConfined;
-import org.sleuthkit.autopsy.ingest.IngestManager;
 import org.sleuthkit.autopsy.timeline.CancellationProgressTask;
-import org.sleuthkit.autopsy.timeline.TimeLineController;
 import org.sleuthkit.autopsy.timeline.datamodel.EventStripe;
 import org.sleuthkit.autopsy.timeline.datamodel.FilteredEventsModel;
 import org.sleuthkit.autopsy.timeline.datamodel.TimeLineEvent;
@@ -168,7 +166,7 @@ public class EventsRepository {
      */
     public Long getMaxTime() {
         return maxCache.getUnchecked("max"); // NON-NLS
-//        return eventDB.getMaxTime();
+
     }
 
     /**
@@ -176,32 +174,9 @@ public class EventsRepository {
      */
     public Long getMinTime() {
         return minCache.getUnchecked("min"); // NON-NLS
-//        return eventDB.getMinTime();
+
     }
 
-    private void recordLastArtifactID(long lastArtfID) {
-        eventDB.recordLastArtifactID(lastArtfID);
-    }
-
-    private void recordWasIngestRunning(Boolean wasIngestRunning) {
-        eventDB.recordWasIngestRunning(wasIngestRunning);
-    }
-
-    private void recordLastObjID(Long lastObjID) {
-        eventDB.recordLastObjID(lastObjID);
-    }
-
-    public boolean getWasIngestRunning() {
-        return eventDB.getWasIngestRunning();
-    }
-
-    public Long getLastObjID() {
-        return eventDB.getLastObjID();
-    }
-
-    public long getLastArtfactID() {
-        return eventDB.getLastArtfactID();
-    }
 
     public TimeLineEvent getEventById(Long eventID) {
         return idToEventCache.getUnchecked(eventID);
@@ -227,6 +202,10 @@ public class EventsRepository {
         return eventCountsCache.getUnchecked(params);
     }
 
+    synchronized public int countAllEvents() {
+        return eventDB.countAllEvents();
+    }
+
     private void invalidateCaches() {
         minCache.invalidateAll();
         maxCache.invalidateAll();
@@ -331,17 +310,7 @@ public class EventsRepository {
         }
     }
 
-    /**
+
-     *
-     * @param lastObjId     the value of lastObjId
-     * @param lastArtfID    the value of lastArtfID
-     * @param injestRunning the value of injestRunning
-     */
-    public void recordDBPopulationState(final long lastObjId, final long lastArtfID, final Boolean injestRunning) {
-        recordLastObjID(lastObjId);
-        recordLastArtifactID(lastArtfID);
-        recordWasIngestRunning(injestRunning);
-    }
 
     public boolean areFiltersEquivalent(RootFilter f1, RootFilter f2) {
         return SQLHelper.getSQLWhere(f1).equals(SQLHelper.getSQLWhere(f2));
@@ -470,11 +439,6 @@ public class EventsRepository {
         protected Void call() throws Exception {
             EventDB.EventTransaction trans = null;
 
-            //save paramaters for recording later
-            long lastObjId = skCase.getLastObjectId();
-            long lastArtfID = TimeLineController.getCaseLastArtifactID(skCase);
-            boolean injestRunning = IngestManager.getInstance().isIngestRunning();
-
             if (dbPopulationMode == DBPopulationMode.FULL) {
                 //drop old db, and add back MAC and artifact events
                 LOGGER.log(Level.INFO, "Beginning population of timeline db."); // NON-NLS
@@ -513,9 +477,6 @@ public class EventsRepository {
             Platform.runLater(() -> cancellable.set(false));
             restartProgressHandle(Bundle.progressWindow_msg_commitingDb(), "", -1D, 1, false);
             eventDB.commitTransaction(trans);
-            if (isCancelRequested() == false) {
-                recordDBPopulationState(lastObjId, lastArtfID, injestRunning);
-            }
 
             eventDB.analyze();
             populateFilterData(skCase);

Core/src/org/sleuthkit/autopsy/timeline/ui/StatusBar.java

@@ -74,8 +74,8 @@ public class StatusBar extends ToolBar {
         taskLabel.setVisible(false);
         HBox.setHgrow(spacer, Priority.ALWAYS);
 
-        refreshLabel.visibleProperty().bind(this.controller.getNewEventsFlag());
+        refreshLabel.visibleProperty().bind(this.controller.eventsDBStaleProperty());
-        refreshLabel.managedProperty().bind(this.controller.getNewEventsFlag());
+        refreshLabel.managedProperty().bind(this.controller.eventsDBStaleProperty());
         taskLabel.textProperty().bind(this.controller.taskTitleProperty());
         messageLabel.textProperty().bind(this.controller.taskMessageProperty());
         progressBar.progressProperty().bind(this.controller.taskProgressProperty());
@@ -83,6 +83,5 @@ public class StatusBar extends ToolBar {
 
         statusLabel.textProperty().bind(this.controller.getStatusProperty());
         statusLabel.visibleProperty().bind(statusLabel.textProperty().isNotEmpty());
-
     }
 }

Core/src/org/sleuthkit/autopsy/timeline/ui/VisualizationPanel.java

@@ -347,9 +347,9 @@ final public class VisualizationPanel extends BorderPane {
         refreshTimeUI(); //populate the viz
 
         //this should use an event(EventBus) , not this weird observable pattern
-        controller.getNeedsHistogramRebuild().addListener((observable, oldValue, newValue) -> {
+        controller.eventsDBStaleProperty().addListener(staleProperty -> {
-            if (newValue) {
+            if (controller.isEventsDBStale()) {
-                refreshHistorgram();
+                Platform.runLater(VisualizationPanel.this::refreshHistorgram);
             }
         });
         refreshHistorgram();