match count and md5 nodes have null default action (does nothing)

Core/src/org/sleuthkit/autopsy/commonfilesearch/NoAction.java

@@ -0,0 +1,35 @@
+/*
+ * 
+ * Autopsy Forensic Browser
+ * 
+ * Copyright 2018 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.commonfilesearch;
+
+import java.awt.event.ActionEvent;
+import javax.swing.AbstractAction;
+
+/**
+ * Default action for nodes which do not represent files, such as 
+ * InstanceCountNode and Md5Node.
+ */
+public class NoAction extends AbstractAction {
+
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        //intentionally does nothing
+    }
+}

Core/src/org/sleuthkit/autopsy/corecomponents/SingleLayerTableFilterNode.java

@@ -0,0 +1,144 @@
+/*
+ * Autopsy Forensic Browser
+ *
+ * Copyright 2011-2017 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.corecomponents;
+
+import org.openide.nodes.FilterNode;
+import org.openide.nodes.Node;
+import org.openide.util.NbBundle;
+import org.openide.util.lookup.Lookups;
+import org.sleuthkit.autopsy.datamodel.NodeSelectionInfo;
+import org.sleuthkit.autopsy.directorytree.DataResultFilterNode;
+
+/**
+ * A filter node that creates at most one layer of child nodes for the node it
+ * wraps. It is designed to be used in the results view to ensure the individual
+ * viewers display only the first layer of child nodes.
+ */
+public class SingleLayerTableFilterNode extends FilterNode implements TableFilterNode {
+
+    private final boolean createChildren;
+    private final boolean forceUseWrappedDisplayName;
+    private String columnOrderKey = "NONE";
+
+    /**
+     * Constructs a filter node that creates at most one layer of child nodes
+     * for the node it wraps. It is designed to be used in the results view to
+     * ensure the individual viewers display only the first layer of child
+     * nodes.
+     *
+     * @param node The node to wrap in the filter node.
+     * @param createChildren True if a Children object should be created for the
+     * wrapped node.
+     */
+    public SingleLayerTableFilterNode(Node node, boolean createChildren) {
+        super(node, TableFilterChildren.createInstance(node, createChildren), Lookups.proxy(node));
+        this.forceUseWrappedDisplayName = false;
+        this.createChildren = createChildren;
+    }
+
+    /**
+     * Constructs a filter node that creates at most one layer of child nodes
+     * for the node it wraps. It is designed to be used in the results view to
+     * ensure the individual viewers display only the first layer of child
+     * nodes.
+     *
+     * @param node The node to wrap in the filter node.
+     * @param createChildren True if a Children object should be created for the
+     * wrapped node.
+     * @param columnOrderKey A key that represents the type of the original
+     * wrapped node and what is being displayed under that node.
+     */
+    public SingleLayerTableFilterNode(Node node, boolean createChildren, String columnOrderKey) {
+        super(node, TableFilterChildren.createInstance(node, createChildren));
+        this.forceUseWrappedDisplayName = false;
+        this.createChildren = createChildren;
+        this.columnOrderKey = columnOrderKey;
+    }
+
+    /**
+     * Gets the display name for the wrapped node, for use in the first column
+     * of an Autopsy table view.
+     *
+     * @return The display name.
+     */
+    @Override
+    public String getDisplayName() {
+        if (this.forceUseWrappedDisplayName) {
+            return super.getDisplayName();
+        } else if (createChildren) {
+            return NbBundle.getMessage(this.getClass(), "TableFilterNode.displayName.text");
+        } else {
+            return super.getDisplayName();
+        }
+    }
+
+    @Override
+    public String getParentDisplayName() {
+        return super.getDisplayName();
+    }
+
+    /**
+     * Adds information about which child node of this node, if any, should be
+     * selected. Can be null.
+     *
+     * @param selectedChildNodeInfo The child node selection information.
+     */
+    @Override
+    public void setChildNodeSelectionInfo(NodeSelectionInfo selectedChildNodeInfo) {
+        /*
+         * Currently, child selection is only supported for nodes selected in
+         * the tree view and decorated with a DataResultFilterNode.
+         */
+        if (getOriginal() instanceof DataResultFilterNode) {
+            ((DataResultFilterNode) getOriginal()).setChildNodeSelectionInfo(selectedChildNodeInfo);
+        }
+    }
+
+    /**
+     * Gets information about which child node of this node, if any, should be
+     * selected.
+     *
+     * @return The child node selection information, or null if no child should
+     * be selected.
+     */
+    @Override
+    public NodeSelectionInfo getChildNodeSelectionInfo() {
+        /*
+         * Currently, child selection is only supported for nodes selected in
+         * the tree view and decorated with a DataResultFilterNode.
+         */
+        if (getOriginal() instanceof DataResultFilterNode) {
+            return ((DataResultFilterNode) getOriginal()).getChildNodeSelectionInfo();
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * @return the column order key, which allows custom column ordering to be
+     * written into a properties file and be reloaded for future use in a table
+     * with the same root node or for different cases. This is done by
+     * DataResultViewerTable. The key should represent what kinds of items the
+     * table is showing.
+     */
+    @Override
+    public String getColumnOrderKey() {
+        return columnOrderKey;
+    }
+}

Core/src/org/sleuthkit/autopsy/directorytree/DataResultFilterNode.java

@@ -41,6 +41,7 @@ import org.sleuthkit.autopsy.actions.AddBlackboardArtifactTagAction;
 import org.sleuthkit.autopsy.actions.AddContentTagAction;
 import org.sleuthkit.autopsy.actions.DeleteFileBlackboardArtifactTagAction;
 import org.sleuthkit.autopsy.actions.DeleteFileContentTagAction;
+import org.sleuthkit.autopsy.commonfilesearch.NoAction;
 import org.sleuthkit.autopsy.core.UserPreferences;
 import org.sleuthkit.autopsy.coreutils.ContextMenuExtensionPoint;
 import org.sleuthkit.autopsy.coreutils.Logger;
@@ -54,9 +55,11 @@ import org.sleuthkit.autopsy.datamodel.DisplayableItemNodeVisitor;
 import org.sleuthkit.autopsy.datamodel.FileNode;
 import org.sleuthkit.autopsy.datamodel.FileTypeExtensions;
 import org.sleuthkit.autopsy.datamodel.FileTypes.FileTypesNode;
+import org.sleuthkit.autopsy.datamodel.InstanceCountNode;
 import org.sleuthkit.autopsy.datamodel.LayoutFileNode;
 import org.sleuthkit.autopsy.datamodel.LocalFileNode;
 import org.sleuthkit.autopsy.datamodel.LocalDirectoryNode;
+import org.sleuthkit.autopsy.datamodel.Md5Node;
 import org.sleuthkit.autopsy.datamodel.NodeSelectionInfo;
 import org.sleuthkit.autopsy.datamodel.Reports;
 import org.sleuthkit.autopsy.datamodel.SlackFileNode;
@@ -526,6 +529,16 @@ public class DataResultFilterNode extends FilterNode {
      */
     private class GetPreferredActionsDisplayableItemNodeVisitor extends DisplayableItemNodeVisitor.Default<AbstractAction> {
 
+        @Override 
+        public AbstractAction visit(InstanceCountNode icn){
+            return new NoAction();
+        }
+        
+        @Override
+        public AbstractAction visit(Md5Node md5n){
+            return new NoAction();
+        }
+        
         @Override
         public AbstractAction visit(BlackboardArtifactNode ban) {
             BlackboardArtifact artifact = ban.getArtifact();