6639 refactor to allow for artifact type filters

Core/src/org/sleuthkit/autopsy/discovery/AbstractDiscoveryFilterPanel.java

@@ -90,12 +90,12 @@ abstract class AbstractDiscoveryFilterPanel extends javax.swing.JPanel {
     }
 
     /**
-     * Get the FileFilter which is represented by this Panel.
+     * Get the AbstractFilter which is represented by this Panel.
      *
-     * @return The FileFilter for the selected settings, null if the settings
+     * @return The AbstractFilter for the selected settings, null if the settings
      *         are not in use.
      */
-    abstract FileSearchFiltering.FileFilter getFilter();
+    abstract AbstractFilter getFilter();
 
     /**
      * Remove listeners from the checkbox and the list if they exist.

Core/src/org/sleuthkit/autopsy/discovery/AbstractFilter.java

@@ -0,0 +1,62 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.sleuthkit.autopsy.discovery;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.sleuthkit.autopsy.centralrepository.datamodel.CentralRepository;
+import org.sleuthkit.datamodel.SleuthkitCase;
+
+/**
+ * Base class for the filters.
+ */
+abstract class AbstractFilter {
+
+    /**
+     * Returns part of a query on the tsk_files table that can be AND-ed with
+     * other pieces
+     *
+     * @return the SQL query or an empty string if there is no SQL query for
+     *         this filter.
+     */
+    abstract String getWhereClause();
+
+    /**
+     * Indicates whether this filter needs to use the secondary, non-SQL method
+     * applyAlternateFilter().
+     *
+     * @return false by default
+     */
+    boolean useAlternateFilter() {
+        return false;
+    }
+
+    /**
+     * Run a secondary filter that does not operate on tsk_files.
+     *
+     * @param currentResults The current list of matching files; empty if no
+     *                       filters have yet been run.
+     * @param caseDb         The case database
+     * @param centralRepoDb  The central repo database. Can be null if the
+     *                       filter does not require it.
+     *
+     * @return The list of files that match this filter (and any that came
+     *         before it)
+     *
+     * @throws FileSearchException
+     */
+    List<ResultFile> applyAlternateFilter(List<ResultFile> currentResults, SleuthkitCase caseDb,
+            CentralRepository centralRepoDb) throws FileSearchException {
+        return new ArrayList<>();
+    }
+
+    /**
+     * Get a description of the selected filter.
+     *
+     * @return A description of the filter
+     */
+    abstract String getDesc();
+}

Core/src/org/sleuthkit/autopsy/discovery/AbstractFiltersPanel.java

@@ -61,6 +61,8 @@ abstract class AbstractFiltersPanel extends JPanel implements ActionListener, Li
         secondColumnPanel.setLayout(new GridBagLayout());
     }
 
+    abstract SearchData.ResultType getResultType();
+    
     /**
      * Get the type of results this filters panel is for.
      *
@@ -242,12 +244,18 @@ abstract class AbstractFiltersPanel extends JPanel implements ActionListener, Li
      *
      * @return The list of filters selected by the user.
      */
-    synchronized List<FileSearchFiltering.FileFilter> getFilters() {
+    synchronized List<AbstractFilter> getFilters() {
-        List<FileSearchFiltering.FileFilter> filtersToUse = new ArrayList<>();
+        
-        filtersToUse.add(new FileSearchFiltering.FileTypeFilter(getFileType()));
+        List<AbstractFilter> filtersToUse = new ArrayList<>();
+        if (getResultType().equals(SearchData.ResultType.FILE)) {
+             filtersToUse.add(new SearchFiltering.FileTypeFilter(getFileType()));
+        } else if (getResultType().equals(SearchData.ResultType.ARTIFACT)){
+            
+        }
+       
         for (AbstractDiscoveryFilterPanel filterPanel : filters) {
             if (filterPanel.getCheckbox().isSelected()) {
-                FileSearchFiltering.FileFilter filter = filterPanel.getFilter();
+                AbstractFilter filter = filterPanel.getFilter();
                 if (filter != null) {
                     filtersToUse.add(filter);
                 }

Core/src/org/sleuthkit/autopsy/discovery/ArtifactSearchData.java

@@ -0,0 +1,82 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.sleuthkit.autopsy.discovery;
+
+import org.openide.util.NbBundle;
+import org.sleuthkit.datamodel.BlackboardArtifact;
+
+/**
+ * Utility enums for searches made for artifacts with Discovery.
+ */
+public class ArtifactSearchData extends SearchData {
+
+        
+    @Override
+    ResultType getResultType(){
+        return ResultType.ARTIFACT;
+    }
+    
+    
+    /**
+     * Enum representing the file type. We don't simply use
+     * FileTypeUtils.FileTypeCategory because: - Some file types categories
+     * overlap - It is convenient to have the "OTHER" option for files that
+     * don't match the given types
+     */
+    @NbBundle.Messages({
+        "ArtifactSearchData.ArtifactType.Domain.displayName=Domain",
+        "ArtifactSearchData.ArtifactType.Other.displayName=Other"})
+    enum ArtifactType {
+
+        DOMAIN(0, Bundle.ArtifactSearchData_ArtifactType_Domain_displayName(), BlackboardArtifact.ARTIFACT_TYPE.TSK_WEB_BOOKMARK),
+        OTHER(1, Bundle.ArtifactSearchData_ArtifactType_Other_displayName(), null);
+
+        private final int ranking;  // For ordering in the UI
+        private final String displayName;
+        private final BlackboardArtifact.ARTIFACT_TYPE artifactType;
+
+        ArtifactType(int value, String displayName, BlackboardArtifact.ARTIFACT_TYPE type) {
+            this.ranking = value;
+            this.displayName = displayName;
+            this.artifactType = type;
+        }
+
+        /**
+         * Get the MIME types matching this category.
+         *
+         * @return Collection of MIME type strings
+         */
+        BlackboardArtifact.ARTIFACT_TYPE getMediaTypes() {
+            return artifactType;
+        }
+
+        @Override
+        public String toString() {
+            return displayName;
+        }
+
+        /**
+         * Get the rank for sorting.
+         *
+         * @return the rank (lower should be displayed first)
+         */
+        int getRanking() {
+            return ranking;
+        }
+
+
+        static ArtifactType fromBlackboardArtifact(final BlackboardArtifact.ARTIFACT_TYPE type) {
+            switch (type) {
+                case TSK_WEB_BOOKMARK:
+                    return DOMAIN;
+                default:
+                    return OTHER;
+            }
+        }
+
+    }
+
+}

Core/src/org/sleuthkit/autopsy/discovery/Bundle.properties-MERGED

@@ -1,3 +1,5 @@
+ArtifactSearchData.ArtifactType.Domain.displayName=Domain
+ArtifactSearchData.ArtifactType.Other.displayName=Other
 CTL_OpenDiscoveryAction=Discovery
 # {0} - dataSourceName
 DataSourceModuleWrapper.exifModule.text=Exif Parser module was not run on data source: {0}\n

Core/src/org/sleuthkit/autopsy/discovery/DataSourceFilterPanel.java

@@ -194,10 +194,10 @@ final class DataSourceFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (dataSourceCheckbox.isSelected()) {
             List<DataSource> dataSources = dataSourceList.getSelectedValuesList().stream().map(t -> t.getDataSource()).collect(Collectors.toList());
-            return new FileSearchFiltering.DataSourceFilter(dataSources);
+            return new SearchFiltering.DataSourceFilter(dataSources);
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/DiscoveryDialog.java

@@ -503,7 +503,7 @@ final class DiscoveryDialog extends javax.swing.JDialog {
             tc.open();
         }
         tc.resetTopComponent();
-        List<FileSearchFiltering.FileFilter> filters;
+        List<AbstractFilter> filters;
         if (videosButton.isSelected()) {
             filters = videoFilterPanel.getFilters();
         } else if (documentsButton.isSelected()) {

Core/src/org/sleuthkit/autopsy/discovery/DiscoveryEventUtils.java

@@ -116,7 +116,7 @@ final class DiscoveryEventUtils {
     static final class SearchCompleteEvent {
 
         private final Map<GroupKey, Integer> groupMap;
-        private final List<FileSearchFiltering.FileFilter> searchFilters;
+        private final List<AbstractFilter> searchFilters;
         private final FileSearch.AttributeType groupingAttribute;
         private final FileGroup.GroupSortingAlgorithm groupSort;
         private final FileSorter.SortingMethod fileSortMethod;
@@ -132,7 +132,7 @@ final class DiscoveryEventUtils {
          * @param groupSort         The sorting algorithm used for groups.
          * @param fileSortMethod    The sorting method used for files.
          */
-        SearchCompleteEvent(Map<GroupKey, Integer> groupMap, List<FileSearchFiltering.FileFilter> searchfilters,
+        SearchCompleteEvent(Map<GroupKey, Integer> groupMap, List<AbstractFilter> searchfilters,
                 FileSearch.AttributeType groupingAttribute, FileGroup.GroupSortingAlgorithm groupSort,
                 FileSorter.SortingMethod fileSortMethod) {
             this.groupMap = groupMap;
@@ -156,7 +156,7 @@ final class DiscoveryEventUtils {
          *
          * @return The search filters which were used by the search.
          */
-        List<FileSearchFiltering.FileFilter> getFilters() {
+        List<AbstractFilter> getFilters() {
             return Collections.unmodifiableList(searchFilters);
         }
 
@@ -275,7 +275,7 @@ final class DiscoveryEventUtils {
         private final FileType resultType;
         private final GroupKey groupKey;
         private final int groupSize;
-        private final List<FileSearchFiltering.FileFilter> searchfilters;
+        private final List<AbstractFilter> searchfilters;
         private final FileSearch.AttributeType groupingAttribute;
         private final FileGroup.GroupSortingAlgorithm groupSort;
         private final FileSorter.SortingMethod fileSortMethod;
@@ -294,7 +294,7 @@ final class DiscoveryEventUtils {
          *                          selected.
          * @param resultType        The type of files which exist in the group.
          */
-        GroupSelectedEvent(List<FileSearchFiltering.FileFilter> searchfilters,
+        GroupSelectedEvent(List<AbstractFilter> searchfilters,
                 FileSearch.AttributeType groupingAttribute, FileGroup.GroupSortingAlgorithm groupSort,
                 FileSorter.SortingMethod fileSortMethod, GroupKey groupKey, int groupSize, FileType resultType) {
             this.searchfilters = searchfilters;
@@ -358,7 +358,7 @@ final class DiscoveryEventUtils {
          *
          * @return The search filters which were used by the search.
          */
-        List<FileSearchFiltering.FileFilter> getFilters() {
+        List<AbstractFilter> getFilters() {
             return Collections.unmodifiableList(searchfilters);
         }
 

Core/src/org/sleuthkit/autopsy/discovery/DiscoveryTopComponent.java

@@ -36,7 +36,6 @@ import org.openide.windows.RetainLocation;
 import org.openide.windows.TopComponent;
 import org.openide.windows.WindowManager;
 import org.sleuthkit.autopsy.coreutils.ThreadConfined;
-import org.sleuthkit.autopsy.discovery.FileSearchFiltering.FileFilter;
 
 /**
  * Create a dialog for displaying the Discovery results.
@@ -299,7 +298,7 @@ public final class DiscoveryTopComponent extends TopComponent {
     void handleSearchCompleteEvent(DiscoveryEventUtils.SearchCompleteEvent searchCompleteEvent) {
         newSearchButton.setText(Bundle.DiscoveryTopComponent_newSearch_text());
         progressMessageTextArea.setForeground(Color.black);
-        progressMessageTextArea.setText(Bundle.DiscoveryTopComponent_searchComplete_text(searchCompleteEvent.getFilters().stream().map(FileFilter::getDesc).collect(Collectors.joining("; "))));
+        progressMessageTextArea.setText(Bundle.DiscoveryTopComponent_searchComplete_text(searchCompleteEvent.getFilters().stream().map(AbstractFilter::getDesc).collect(Collectors.joining("; "))));
         progressMessageTextArea.setCaretPosition(0);
     }
 

Core/src/org/sleuthkit/autopsy/discovery/DocumentFilterPanel.java

@@ -98,4 +98,9 @@ final class DocumentFilterPanel extends AbstractFiltersPanel {
     private javax.swing.JSplitPane documentsFiltersSplitPane;
     // End of variables declaration//GEN-END:variables
 
+    @Override
+    SearchData.ResultType getResultType() {
+        return SearchData.ResultType.FILE;
+    }
+
 }

Core/src/org/sleuthkit/autopsy/discovery/DomainFilterPanel.form

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">
+  <AuxValues>
+    <AuxValue name="FormSettings_autoResourcing" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_autoSetComponentName" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_generateFQN" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_generateMnemonicsCode" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_i18nAutoMode" type="java.lang.Boolean" value="true"/>
+    <AuxValue name="FormSettings_layoutCodeTarget" type="java.lang.Integer" value="1"/>
+    <AuxValue name="FormSettings_listenerGenerationStyle" type="java.lang.Integer" value="0"/>
+    <AuxValue name="FormSettings_variablesLocal" type="java.lang.Boolean" value="false"/>
+    <AuxValue name="FormSettings_variablesModifier" type="java.lang.Integer" value="2"/>
+  </AuxValues>
+
+  <Layout>
+    <DimensionLayout dim="0">
+      <Group type="103" groupAlignment="0" attributes="0">
+          <EmptySpace min="0" pref="400" max="32767" attributes="0"/>
+      </Group>
+    </DimensionLayout>
+    <DimensionLayout dim="1">
+      <Group type="103" groupAlignment="0" attributes="0">
+          <EmptySpace min="0" pref="300" max="32767" attributes="0"/>
+      </Group>
+    </DimensionLayout>
+  </Layout>
+</Form>

Core/src/org/sleuthkit/autopsy/discovery/DomainFilterPanel.java

@@ -0,0 +1,58 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.sleuthkit.autopsy.discovery;
+
+/**
+ *
+ * @author wschaefer
+ */
+public class DomainFilterPanel extends AbstractFiltersPanel {
+
+    private static final long serialVersionUID = 1L;
+    private static final ArtifactSearchData.ArtifactType ARTIFACT_TYPE = ArtifactSearchData.ArtifactType.DOMAIN;
+
+    /**
+     * Creates new form DomainFilterPanel
+     */
+    public DomainFilterPanel() {
+        initComponents();
+    }
+
+    /**
+     * This method is called from within the constructor to initialize the form.
+     * WARNING: Do NOT modify this code. The content of this method is always
+     * regenerated by the Form Editor.
+     */
+    @SuppressWarnings("unchecked")
+    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
+    private void initComponents() {
+
+        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
+        this.setLayout(layout);
+        layout.setHorizontalGroup(
+            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addGap(0, 400, Short.MAX_VALUE)
+        );
+        layout.setVerticalGroup(
+            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+            .addGap(0, 300, Short.MAX_VALUE)
+        );
+    }// </editor-fold>//GEN-END:initComponents
+
+    @Override
+    FileSearchData.FileType getFileType() {
+        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    }
+
+    @Override
+    SearchData.ResultType getResultType() {
+        return SearchData.ResultType.ARTIFACT;
+    }
+
+
+    // Variables declaration - do not modify//GEN-BEGIN:variables
+    // End of variables declaration//GEN-END:variables
+}

Core/src/org/sleuthkit/autopsy/discovery/FileSearch.java

@@ -122,7 +122,7 @@ class FileSearch {
      * @throws FileSearchException
      */
     static SearchResults runFileSearchDebug(String userName,
-            List<FileSearchFiltering.FileFilter> filters,
+            List<AbstractFilter> filters,
             AttributeType groupAttributeType,
             FileGroup.GroupSortingAlgorithm groupSortingType,
             FileSorter.SortingMethod fileSortingMethod,
@@ -136,7 +136,7 @@ class FileSearch {
         attributesNeededForGroupingOrSorting.addAll(fileSortingMethod.getRequiredAttributes());
 
         // Run the queries for each filter
-        List<ResultFile> resultFiles = FileSearchFiltering.runQueries(filters, caseDb, centralRepoDb);
+        List<ResultFile> resultFiles = SearchFiltering.runQueries(filters, caseDb, centralRepoDb);
 
         // Add the data to resultFiles for any attributes needed for sorting and grouping
         addAttributes(attributesNeededForGroupingOrSorting, resultFiles, caseDb, centralRepoDb);
@@ -174,7 +174,7 @@ class FileSearch {
      * @throws FileSearchException
      */
     static Map<GroupKey, Integer> getGroupSizes(String userName,
-            List<FileSearchFiltering.FileFilter> filters,
+            List<AbstractFilter> filters,
             AttributeType groupAttributeType,
             FileGroup.GroupSortingAlgorithm groupSortingType,
             FileSorter.SortingMethod fileSortingMethod,
@@ -211,7 +211,7 @@ class FileSearch {
      * @throws FileSearchException
      */
     static List<ResultFile> getFilesInGroup(String userName,
-            List<FileSearchFiltering.FileFilter> filters,
+            List<AbstractFilter> filters,
             AttributeType groupAttributeType,
             FileGroup.GroupSortingAlgorithm groupSortingType,
             FileSorter.SortingMethod fileSortingMethod,
@@ -483,7 +483,7 @@ class FileSearch {
      * @throws FileSearchException
      */
     private static Map<GroupKey, List<ResultFile>> runFileSearch(String userName,
-            List<FileSearchFiltering.FileFilter> filters,
+            List<AbstractFilter> filters,
             AttributeType groupAttributeType,
             FileGroup.GroupSortingAlgorithm groupSortingType,
             FileSorter.SortingMethod fileSortingMethod,
@@ -498,7 +498,7 @@ class FileSearch {
         attributesNeededForGroupingOrSorting.addAll(fileSortingMethod.getRequiredAttributes());
 
         // Run the queries for each filter
-        List<ResultFile> resultFiles = FileSearchFiltering.runQueries(filters, caseDb, centralRepoDb);
+        List<ResultFile> resultFiles = SearchFiltering.runQueries(filters, caseDb, centralRepoDb);
 
         // Add the data to resultFiles for any attributes needed for sorting and grouping
         addAttributes(attributesNeededForGroupingOrSorting, resultFiles, caseDb, centralRepoDb);
@@ -2077,13 +2077,13 @@ class FileSearch {
          * @param groupSortingType   The algorithm to sort the groups by.
          * @param fileSortingMethod  The method to sort the files by.
          */
-        SearchKey(String userName, List<FileSearchFiltering.FileFilter> filters,
+        SearchKey(String userName, List<AbstractFilter> filters,
                 AttributeType groupAttributeType,
                 FileGroup.GroupSortingAlgorithm groupSortingType,
                 FileSorter.SortingMethod fileSortingMethod) {
             StringBuilder searchStringBuilder = new StringBuilder();
             searchStringBuilder.append(userName);
-            for (FileSearchFiltering.FileFilter filter : filters) {
+            for (AbstractFilter filter : filters) {
                 searchStringBuilder.append(filter.toString());
             }
             searchStringBuilder.append(groupAttributeType).append(groupSortingType).append(fileSortingMethod);

Core/src/org/sleuthkit/autopsy/discovery/FileSearchData.java

@@ -28,12 +28,17 @@ import org.openide.util.NbBundle;
 import org.sleuthkit.autopsy.coreutils.FileTypeUtils;
 
 /**
- * Utility enums for FileSearch.
+ * Utility enums for searches made for files with Discovery.
  */
-final class FileSearchData {
+final class FileSearchData extends SearchData {
 
     private final static long BYTES_PER_MB = 1000000;
 
+    @Override
+    ResultType getResultType() {
+        return ResultType.FILE;
+    }
+
     /**
      * Enum representing how often the file occurs in the Central Repository.
      */
@@ -384,14 +389,6 @@ final class FileSearchData {
             return OTHER;
         }
 
-        /**
-         * Get the list of enums that are valid for filtering.
-         *
-         * @return enums that can be used to filter
-         */
-        static List<FileType> getOptionsForFiltering() {
-            return Arrays.asList(IMAGE, VIDEO);
-        }
     }
 
     /**

Core/src/org/sleuthkit/autopsy/discovery/GroupListPanel.java

@@ -39,7 +39,7 @@ final class GroupListPanel extends javax.swing.JPanel {
     private static final long serialVersionUID = 1L;
     private FileType resultType = null;
     private Map<GroupKey, Integer> groupMap = null;
-    private List<FileSearchFiltering.FileFilter> searchfilters;
+    private List<AbstractFilter> searchfilters;
     private FileSearch.AttributeType groupingAttribute;
     private FileGroup.GroupSortingAlgorithm groupSort;
     private FileSorter.SortingMethod fileSortMethod;

Core/src/org/sleuthkit/autopsy/discovery/HashSetFilterPanel.java

@@ -161,9 +161,9 @@ final class HashSetFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (hashSetCheckbox.isSelected()) {
-            return new FileSearchFiltering.HashSetFilter(hashSetList.getSelectedValuesList());
+            return new SearchFiltering.HashSetFilter(hashSetList.getSelectedValuesList());
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/ImageFilterPanel.java

@@ -103,4 +103,9 @@ final class ImageFilterPanel extends AbstractFiltersPanel {
     // Variables declaration - do not modify//GEN-BEGIN:variables
     private javax.swing.JSplitPane imageFiltersSplitPane;
     // End of variables declaration//GEN-END:variables
+
+    @Override
+    SearchData.ResultType getResultType() {
+        return SearchData.ResultType.FILE;
+    }
 }

Core/src/org/sleuthkit/autopsy/discovery/InterestingItemsFilterPanel.java

@@ -163,9 +163,9 @@ final class InterestingItemsFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (interestingItemsCheckbox.isSelected()) {
-            return new FileSearchFiltering.InterestingFileSetFilter(interestingItemsList.getSelectedValuesList());
+            return new SearchFiltering.InterestingFileSetFilter(interestingItemsList.getSelectedValuesList());
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/ObjectDetectedFilterPanel.java

@@ -167,9 +167,9 @@ final class ObjectDetectedFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (objectsCheckbox.isSelected()) {
-            return new FileSearchFiltering.ObjectDetectionFilter(objectsList.getSelectedValuesList());
+            return new SearchFiltering.ObjectDetectionFilter(objectsList.getSelectedValuesList());
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/PageWorker.java

@@ -34,7 +34,7 @@ final class PageWorker extends SwingWorker<Void, Void> {
 
     private final static Logger logger = Logger.getLogger(PageWorker.class.getName());
     private static final String USER_NAME_PROPERTY = "user.name"; //NON-NLS
-    private final List<FileSearchFiltering.FileFilter> searchfilters;
+    private final List<AbstractFilter> searchfilters;
     private final FileSearch.AttributeType groupingAttribute;
     private final FileGroup.GroupSortingAlgorithm groupSort;
     private final FileSorter.SortingMethod fileSortMethod;
@@ -61,7 +61,7 @@ final class PageWorker extends SwingWorker<Void, Void> {
      * @param resultType        The type of files which exist in the group.
      * @param centralRepo       The central repository to be used.
      */
-    PageWorker(List<FileSearchFiltering.FileFilter> searchfilters, FileSearch.AttributeType groupingAttribute,
+    PageWorker(List<AbstractFilter> searchfilters, FileSearch.AttributeType groupingAttribute,
             FileGroup.GroupSortingAlgorithm groupSort, FileSorter.SortingMethod fileSortMethod, GroupKey groupKey,
             int startingEntry, int pageSize, FileSearchData.FileType resultType, CentralRepository centralRepo) {
         this.searchfilters = searchfilters;

Core/src/org/sleuthkit/autopsy/discovery/ParentFolderFilterPanel.java

@@ -24,7 +24,7 @@ import javax.swing.DefaultListModel;
 import javax.swing.JCheckBox;
 import javax.swing.JLabel;
 import javax.swing.JList;
-import org.sleuthkit.autopsy.discovery.FileSearchFiltering.ParentSearchTerm;
+import org.sleuthkit.autopsy.discovery.SearchFiltering.ParentSearchTerm;
 
 /**
  * Panel to allow configuration of the Parent Folder filter.
@@ -32,7 +32,7 @@ import org.sleuthkit.autopsy.discovery.FileSearchFiltering.ParentSearchTerm;
 final class ParentFolderFilterPanel extends AbstractDiscoveryFilterPanel {
 
     private static final long serialVersionUID = 1L;
-    private DefaultListModel<FileSearchFiltering.ParentSearchTerm> parentListModel;
+    private DefaultListModel<SearchFiltering.ParentSearchTerm> parentListModel;
     private static final String[] DEFAULT_IGNORED_PATHS = {"/Windows/", "/Program Files/"}; //NON-NLS
 
     /**
@@ -49,7 +49,7 @@ final class ParentFolderFilterPanel extends AbstractDiscoveryFilterPanel {
     private void setUpParentPathFilter() {
         fullRadioButton.setSelected(true);
         includeRadioButton.setSelected(true);
-        parentListModel = (DefaultListModel<FileSearchFiltering.ParentSearchTerm>) parentList.getModel();
+        parentListModel = (DefaultListModel<SearchFiltering.ParentSearchTerm>) parentList.getModel();
         for (String ignorePath : DEFAULT_IGNORED_PATHS) {
             parentListModel.add(parentListModel.size(), new ParentSearchTerm(ignorePath, false, false));
         }
@@ -291,8 +291,8 @@ final class ParentFolderFilterPanel extends AbstractDiscoveryFilterPanel {
      *
      * @return The list of entered ParentSearchTerm objects
      */
-    private List<FileSearchFiltering.ParentSearchTerm> getParentPaths() {
+    private List<SearchFiltering.ParentSearchTerm> getParentPaths() {
-        List<FileSearchFiltering.ParentSearchTerm> results = new ArrayList<>();
+        List<SearchFiltering.ParentSearchTerm> results = new ArrayList<>();
         for (int i = 0; i < parentListModel.getSize(); i++) {
             results.add(parentListModel.get(i));
         }
@@ -305,9 +305,9 @@ final class ParentFolderFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (parentCheckbox.isSelected()) {
-            return new FileSearchFiltering.ParentFilter(getParentPaths());
+            return new SearchFiltering.ParentFilter(getParentPaths());
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/PastOccurrencesFilterPanel.java

@@ -154,9 +154,9 @@ final class PastOccurrencesFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (pastOccurrencesCheckbox.isSelected()) {
-            return new FileSearchFiltering.FrequencyFilter(crFrequencyList.getSelectedValuesList());
+            return new SearchFiltering.FrequencyFilter(crFrequencyList.getSelectedValuesList());
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/ResultsPanel.java

@@ -51,7 +51,7 @@ final class ResultsPanel extends javax.swing.JPanel {
     private final VideoThumbnailViewer videoThumbnailViewer;
     private final ImageThumbnailViewer imageThumbnailViewer;
     private final DocumentPreviewViewer documentPreviewViewer;
-    private List<FileSearchFiltering.FileFilter> searchFilters;
+    private List<AbstractFilter> searchFilters;
     private FileSearch.AttributeType groupingAttribute;
     private FileGroup.GroupSortingAlgorithm groupSort;
     private FileSorter.SortingMethod fileSortMethod;

Core/src/org/sleuthkit/autopsy/discovery/SearchData.java

@@ -0,0 +1,19 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.sleuthkit.autopsy.discovery;
+
+
+abstract class SearchData {
+    
+    enum ResultType {
+        FILE,
+        ARTIFACT;
+    }
+    
+    abstract ResultType getResultType();
+
+    
+}

Core/src/org/sleuthkit/autopsy/discovery/SearchFiltering.java

@@ -42,7 +42,7 @@ import org.sleuthkit.autopsy.centralrepository.datamodel.CentralRepository;
 /**
  * Run various filters to return a subset of files from the current case.
  */
-class FileSearchFiltering {
+class SearchFiltering {
 
     /**
      * Run the given filters to get a list of matching files.
@@ -54,13 +54,13 @@ class FileSearchFiltering {
      *
      * @return
      */
-    static List<ResultFile> runQueries(List<FileFilter> filters, SleuthkitCase caseDb, CentralRepository centralRepoDb) throws FileSearchException {
+    static List<ResultFile> runQueries(List<AbstractFilter> filters, SleuthkitCase caseDb, CentralRepository centralRepoDb) throws FileSearchException {
         if (caseDb == null) {
             throw new FileSearchException("Case DB parameter is null"); // NON-NLS
         }
         // Combine all the SQL queries from the filters into one query
         String combinedQuery = "";
-        for (FileFilter filter : filters) {
+        for (AbstractFilter filter : filters) {
             if (!filter.getWhereClause().isEmpty()) {
                 if (!combinedQuery.isEmpty()) {
                     combinedQuery += " AND "; // NON-NLS
@@ -94,7 +94,7 @@ class FileSearchFiltering {
      * @throws TskCoreException
      * @throws FileSearchException
      */
-    private static List<ResultFile> getResultList(List<FileFilter> filters, String combinedQuery, SleuthkitCase caseDb, CentralRepository centralRepoDb) throws TskCoreException, FileSearchException {
+    private static List<ResultFile> getResultList(List<AbstractFilter> filters, String combinedQuery, SleuthkitCase caseDb, CentralRepository centralRepoDb) throws TskCoreException, FileSearchException {
         // Get all matching abstract files
         List<ResultFile> resultList = new ArrayList<>();
         List<AbstractFile> sqlResults = caseDb.findAllFilesWhere(combinedQuery);
@@ -110,7 +110,7 @@ class FileSearchFiltering {
         }
 
         // Now run any non-SQL filters. 
-        for (FileFilter filter : filters) {
+        for (AbstractFilter filter : filters) {
             if (filter.useAlternateFilter()) {
                 resultList = filter.applyAlternateFilter(resultList, caseDb, centralRepoDb);
             }
@@ -122,61 +122,10 @@ class FileSearchFiltering {
         return resultList;
     }
 
-    /**
-     * Base class for the filters.
-     */
-    static abstract class FileFilter {
-
-        /**
-         * Returns part of a query on the tsk_files table that can be AND-ed
-         * with other pieces
-         *
-         * @return the SQL query or an empty string if there is no SQL query for
-         *         this filter.
-         */
-        abstract String getWhereClause();
-
-        /**
-         * Indicates whether this filter needs to use the secondary, non-SQL
-         * method applyAlternateFilter().
-         *
-         * @return false by default
-         */
-        boolean useAlternateFilter() {
-            return false;
-        }
-
-        /**
-         * Run a secondary filter that does not operate on tsk_files.
-         *
-         * @param currentResults The current list of matching files; empty if no
-         *                       filters have yet been run.
-         * @param caseDb         The case database
-         * @param centralRepoDb  The central repo database. Can be null if the
-         *                       filter does not require it.
-         *
-         * @return The list of files that match this filter (and any that came
-         *         before it)
-         *
-         * @throws FileSearchException
-         */
-        List<ResultFile> applyAlternateFilter(List<ResultFile> currentResults, SleuthkitCase caseDb,
-                CentralRepository centralRepoDb) throws FileSearchException {
-            return new ArrayList<>();
-        }
-
-        /**
-         * Get a description of the selected filter.
-         *
-         * @return A description of the filter
-         */
-        abstract String getDesc();
-    }
-
     /**
      * A filter for specifying the file size
      */
-    static class SizeFilter extends FileFilter {
+    static class SizeFilter extends AbstractFilter {
 
         private final List<FileSize> fileSizes;
 
@@ -316,7 +265,7 @@ class FileSearchFiltering {
     /**
      * A filter for specifying parent path (either full path or substring)
      */
-    static class ParentFilter extends FileFilter {
+    static class ParentFilter extends AbstractFilter {
 
         private final List<ParentSearchTerm> parentSearchTerms;
 
@@ -393,7 +342,7 @@ class FileSearchFiltering {
     /**
      * A filter for specifying data sources
      */
-    static class DataSourceFilter extends FileFilter {
+    static class DataSourceFilter extends AbstractFilter {
 
         private final List<DataSource> dataSources;
 
@@ -444,7 +393,7 @@ class FileSearchFiltering {
      * A filter for specifying keyword list names. A file must contain a keyword
      * from one of the given lists to pass.
      */
-    static class KeywordListFilter extends FileFilter {
+    static class KeywordListFilter extends AbstractFilter {
 
         private final List<String> listNames;
 
@@ -480,7 +429,7 @@ class FileSearchFiltering {
     /**
      * A filter for specifying file types.
      */
-    static class FileTypeFilter extends FileFilter {
+    static class FileTypeFilter extends AbstractFilter {
 
         private final List<FileType> categories;
 
@@ -539,7 +488,7 @@ class FileSearchFiltering {
     /**
      * A filter for specifying frequency in the central repository.
      */
-    static class FrequencyFilter extends FileFilter {
+    static class FrequencyFilter extends AbstractFilter {
 
         private final List<Frequency> frequencies;
 
@@ -609,7 +558,7 @@ class FileSearchFiltering {
      * A filter for specifying hash set names. A file must match one of the
      * given sets to pass.
      */
-    static class HashSetFilter extends FileFilter {
+    static class HashSetFilter extends AbstractFilter {
 
         private final List<String> setNames;
 
@@ -647,7 +596,7 @@ class FileSearchFiltering {
      * A filter for specifying interesting file set names. A file must match one
      * of the given sets to pass.
      */
-    static class InterestingFileSetFilter extends FileFilter {
+    static class InterestingFileSetFilter extends AbstractFilter {
 
         private final List<String> setNames;
 
@@ -685,7 +634,7 @@ class FileSearchFiltering {
      * A filter for specifying object types detected. A file must match one of
      * the given types to pass.
      */
-    static class ObjectDetectionFilter extends FileFilter {
+    static class ObjectDetectionFilter extends AbstractFilter {
 
         private final List<String> typeNames;
 
@@ -723,7 +672,7 @@ class FileSearchFiltering {
      * A filter for specifying the score. A file must have one of the given
      * scores to pass
      */
-    static class ScoreFilter extends FileFilter {
+    static class ScoreFilter extends AbstractFilter {
 
         private final List<Score> scores;
 
@@ -800,7 +749,7 @@ class FileSearchFiltering {
      * A filter for specifying tag names. A file must contain one of the given
      * tags to pass.
      */
-    static class TagsFilter extends FileFilter {
+    static class TagsFilter extends AbstractFilter {
 
         private final List<TagName> tagNames;
 
@@ -849,7 +798,7 @@ class FileSearchFiltering {
      * A filter for specifying that the file must have user content suspected
      * data.
      */
-    static class UserCreatedFilter extends FileFilter {
+    static class UserCreatedFilter extends AbstractFilter {
 
         /**
          * Create the ExifFilter
@@ -877,7 +826,7 @@ class FileSearchFiltering {
      * A filter for specifying that the file must have been marked as notable in
      * the CR.
      */
-    static class NotableFilter extends FileFilter {
+    static class NotableFilter extends AbstractFilter {
 
         /**
          * Create the NotableFilter
@@ -945,7 +894,7 @@ class FileSearchFiltering {
     /**
      * A filter for specifying if known files should be included.
      */
-    static class KnownFilter extends FileFilter {
+    static class KnownFilter extends AbstractFilter {
 
         @Override
         String getWhereClause() {
@@ -992,7 +941,7 @@ class FileSearchFiltering {
         return result;
     }
 
-    private FileSearchFiltering() {
+    private SearchFiltering(){
         // Class should not be instantiated
     }
 }

Core/src/org/sleuthkit/autopsy/discovery/SearchWorker.java

@@ -35,7 +35,7 @@ final class SearchWorker extends SwingWorker<Void, Void> {
 
     private final static Logger logger = Logger.getLogger(SearchWorker.class.getName());
     private static final String USER_NAME_PROPERTY = "user.name"; //NON-NLS
-    private final List<FileSearchFiltering.FileFilter> filters;
+    private final List<AbstractFilter> filters;
     private final FileSearch.AttributeType groupingAttr;
     private final FileSorter.SortingMethod fileSort;
     private final FileGroup.GroupSortingAlgorithm groupSortAlgorithm;
@@ -52,7 +52,7 @@ final class SearchWorker extends SwingWorker<Void, Void> {
      * @param groupSort         The Algorithm to sort groups by.
      * @param fileSortMethod    The SortingMethod to use for files.
      */
-    SearchWorker(CentralRepository centralRepo, List<FileSearchFiltering.FileFilter> searchfilters, FileSearch.AttributeType groupingAttribute, FileGroup.GroupSortingAlgorithm groupSort, FileSorter.SortingMethod fileSortMethod) {
+    SearchWorker(CentralRepository centralRepo, List<AbstractFilter> searchfilters, FileSearch.AttributeType groupingAttribute, FileGroup.GroupSortingAlgorithm groupSort, FileSorter.SortingMethod fileSortMethod) {
         centralRepoDb = centralRepo;
         filters = searchfilters;
         groupingAttr = groupingAttribute;

Core/src/org/sleuthkit/autopsy/discovery/SizeFilterPanel.java

@@ -178,9 +178,9 @@ final class SizeFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (sizeCheckbox.isSelected()) {
-            return new FileSearchFiltering.SizeFilter(sizeList.getSelectedValuesList());
+            return new SearchFiltering.SizeFilter(sizeList.getSelectedValuesList());
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/UserCreatedFilterPanel.java

@@ -98,9 +98,9 @@ final class UserCreatedFilterPanel extends AbstractDiscoveryFilterPanel {
     }
 
     @Override
-    FileSearchFiltering.FileFilter getFilter() {
+    AbstractFilter getFilter() {
         if (userCreatedCheckbox.isSelected()) {
-            return new FileSearchFiltering.UserCreatedFilter();
+            return new SearchFiltering.UserCreatedFilter();
         }
         return null;
     }

Core/src/org/sleuthkit/autopsy/discovery/VideoFilterPanel.java

@@ -105,4 +105,9 @@ final class VideoFilterPanel extends AbstractFiltersPanel {
     private javax.swing.JSplitPane videoFiltersSplitPane;
     // End of variables declaration//GEN-END:variables
 
+    @Override
+    SearchData.ResultType getResultType() {
+        return SearchData.ResultType.FILE;
+    }
+
 }