JAL-2089 patch broken merge to master for Release 2.10.0b1
[jalview.git] / src / jalview / gui / StructureChooser.java
index 11fb943..3350f6c 100644 (file)
+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ * 
+ * This file is part of Jalview.
+ * 
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License 
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *  
+ * Jalview is distributed in the hope that it will be useful, but 
+ * WITHOUT ANY WARRANTY; without even the implied warranty 
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
+ * PURPOSE.  See the GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
+
 package jalview.gui;
 
+import jalview.bin.Jalview;
 import jalview.datamodel.DBRefEntry;
+import jalview.datamodel.DBRefSource;
 import jalview.datamodel.PDBEntry;
 import jalview.datamodel.SequenceI;
+import jalview.fts.api.FTSData;
+import jalview.fts.api.FTSDataColumnI;
+import jalview.fts.api.FTSRestClientI;
+import jalview.fts.core.FTSRestRequest;
+import jalview.fts.core.FTSRestResponse;
+import jalview.fts.service.pdb.PDBFTSRestClient;
 import jalview.jbgui.GStructureChooser;
+import jalview.structure.StructureMapping;
+import jalview.structure.StructureSelectionManager;
 import jalview.util.MessageManager;
-import jalview.ws.dbsources.PDBRestClient;
-import jalview.ws.dbsources.PDBRestClient.PDBDocField;
-import jalview.ws.uimodel.PDBSearchRequest;
-import jalview.ws.uimodel.PDBSearchResponse;
-import jalview.ws.uimodel.PDBSearchResponse.PDBResponseSummary;
+import jalview.ws.DBRefFetcher;
+import jalview.ws.sifts.SiftsSettings;
 
+import java.awt.event.ItemEvent;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
+import java.util.Objects;
+import java.util.Set;
+import java.util.Vector;
 
+import javax.swing.JCheckBox;
+import javax.swing.JComboBox;
+import javax.swing.JLabel;
 import javax.swing.JOptionPane;
+import javax.swing.table.AbstractTableModel;
 
+/**
+ * Provides the behaviors for the Structure chooser Panel
+ * 
+ * @author tcnofoegbu
+ *
+ */
 @SuppressWarnings("serial")
-public class StructureChooser extends GStructureChooser
+public class StructureChooser extends GStructureChooser implements
+        IProgressIndicator
 {
-
-  private boolean structuresWereFound = false;
-
   private SequenceI selectedSequence;
 
   private SequenceI[] selectedSequences;
 
-  public StructureChooser(AlignmentPanel ap, final SequenceI sequence)
+  private IProgressIndicator progressIndicator;
+
+  private Collection<FTSData> discoveredStructuresSet;
+
+  private FTSRestRequest lastPdbRequest;
+
+  private FTSRestClientI pdbRestCleint;
+
+  private String selectedPdbFileName;
+
+  private boolean isValidPBDEntry;
+
+  private boolean cachedPDBExists;
+
+  public StructureChooser(SequenceI[] selectedSeqs, SequenceI selectedSeq,
+          AlignmentPanel ap)
   {
     this.ap = ap;
-    this.selectedSequence = sequence;
-    selectedSequences = ((ap.av.getSelectionGroup() == null) ? new SequenceI[]
-    { sequence } : ap.av.getSequenceSelection());
-    fetchStructures();
-    populateFilterOptions();
-    updateCurrentView();
+    this.selectedSequence = selectedSeq;
+    this.selectedSequences = selectedSeqs;
+    this.progressIndicator = (ap == null) ? null : ap.alignFrame;
+    init();
   }
 
-  @Override
-  public void ok_ActionPerformed()
+  /**
+   * Initializes parameters used by the Structure Chooser Panel
+   */
+  public void init()
   {
-    // TODO code to load selected structures to jmol or chimera
+    if (!Jalview.isHeadlessMode())
+    {
+      progressBar = new ProgressBar(this.statusPanel, this.statusBar);
+    }
+
+    // ensure a filter option is in force for search
+    populateFilterComboBox(true, cachedPDBExists);
+    Thread discoverPDBStructuresThread = new Thread(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        long startTime = System.currentTimeMillis();
+        updateProgressIndicator(MessageManager
+                .getString("status.loading_cached_pdb_entries"), startTime);
+        loadLocalCachedPDBEntries();
+        updateProgressIndicator(null, startTime);
+        updateProgressIndicator(MessageManager
+                .getString("status.searching_for_pdb_structures"),
+                startTime);
+        fetchStructuresMetaData();
+        // revise filter options if no results were found
+        populateFilterComboBox(isStructuresDiscovered(), cachedPDBExists);
+        updateProgressIndicator(null, startTime);
+        mainFrame.setVisible(true);
+        updateCurrentView();
+      }
+    });
+    discoverPDBStructuresThread.start();
   }
 
-  protected void populateFilterOptions()
+  /**
+   * Updates the progress indicator with the specified message
+   * 
+   * @param message
+   *          displayed message for the operation
+   * @param id
+   *          unique handle for this indicator
+   */
+  public void updateProgressIndicator(String message, long id)
   {
-    if (structuresWereFound)
-    {
-      filterOptionsComboBox.addItem(new FilterOptions(
-              "- Filter Criteria -", "",
-              VIEWS_FILTER));
-      filterOptionsComboBox.addItem(new FilterOptions("All", "all",
-              VIEWS_FILTER));
-      filterOptionsComboBox.addItem(new FilterOptions("Best Coverage",
-              "coverage",
-              VIEWS_FILTER));
-      filterOptionsComboBox.addItem(new FilterOptions("Best Resolution",
-              PDBDocField.RESOLUTION.getCode(),
-              VIEWS_FILTER));
-      filterOptionsComboBox.addItem(new FilterOptions("Best Quality",
-              PDBDocField.OVERALL_QUALITY.getCode(),
-              VIEWS_FILTER));
-
-      // "number_of_polymers"), PROTEIN_CHAIN_COUNT(
-      // "Protein Chain Count", "number_of_protein_chains"),
-      // BOUND_MOLECULE_COUNT(
-      // "Bound Molecule Count", "number_of_bound_molecules"),
-      // POLYMER_RESIDUE_COUNT(
-      // "Polymer Residue Count", "number_of_polymer_residues"),
-      // UNIPROT_COVERAGE(
-    }
-    filterOptionsComboBox.addItem(new FilterOptions("Enter PDB Id", "-",
-            VIEWS_ENTER_ID));
-    filterOptionsComboBox.addItem(new FilterOptions("From File", "-",
-            VIEWS_FROM_FILE));
+    if (progressIndicator != null)
+    {
+      progressIndicator.setProgressBar(message, id);
+    }
   }
 
-  private void fetchStructures()
+  /**
+   * Retrieve meta-data for all the structure(s) for a given sequence(s) in a
+   * selection group
+   */
+  public void fetchStructuresMetaData()
   {
     long startTime = System.currentTimeMillis();
-    // final SequenceI[] sequences = ((ap.av.getSelectionGroup() == null) ? new
-    // SequenceI[]
-    // { sequence }
-    // : ap.av.getSequenceSelection());
-
-    int foundStructures = 0;
-    List<PDBDocField> wantedFields = new ArrayList<PDBDocField>();
-    wantedFields.add(PDBDocField.MOLECULE_TYPE);
-    wantedFields.add(PDBDocField.PDB_ID);
-    wantedFields.add(PDBDocField.GENUS);
-    wantedFields.add(PDBDocField.GENE_NAME);
-    wantedFields.add(PDBDocField.TITLE);
-
-    PDBSearchRequest request = new PDBSearchRequest();
-    request.setAllowEmptySeq(false);
-    request.setResponseSize(500);
-    request.setSearchTarget("(text:");
-    request.setWantedFields(wantedFields);
-    
-    Collection<PDBResponseSummary> searchSummaries = new HashSet<PDBResponseSummary>();
+    pdbRestCleint = PDBFTSRestClient.getInstance();
+    Collection<FTSDataColumnI> wantedFields = pdbDocFieldPrefs
+            .getStructureSummaryFields();
+
+    discoveredStructuresSet = new LinkedHashSet<FTSData>();
+    HashSet<String> errors = new HashSet<String>();
     for (SequenceI seq : selectedSequences)
     {
-      request.setSearchTerm(buildQuery(seq) + ")");
-      PDBRestClient pdbRestCleint = new PDBRestClient();
-      PDBSearchResponse resultList = pdbRestCleint
-              .executeRequest(request);
+      FTSRestRequest pdbRequest = new FTSRestRequest();
+      pdbRequest.setAllowEmptySeq(false);
+      pdbRequest.setResponseSize(500);
+      pdbRequest.setFieldToSearchBy("(");
+      FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
+              .getSelectedItem());
+      pdbRequest.setFieldToSortBy(selectedFilterOpt.getValue(),
+              !chk_invertFilter.isSelected());
+      pdbRequest.setWantedFields(wantedFields);
+      pdbRequest.setSearchTerm(buildQuery(seq) + ")");
+      pdbRequest.setAssociatedSequence(seq);
+      FTSRestResponse resultList;
+      try
+      {
+        resultList = pdbRestCleint.executeRequest(pdbRequest);
+      } catch (Exception e)
+      {
+        e.printStackTrace();
+        errors.add(e.getMessage());
+        continue;
+      }
+      lastPdbRequest = pdbRequest;
       if (resultList.getSearchSummary() != null
               && !resultList.getSearchSummary().isEmpty())
       {
-        searchSummaries.addAll(resultList.getSearchSummary());
+        discoveredStructuresSet.addAll(resultList.getSearchSummary());
       }
     }
 
-    foundStructures = searchSummaries.size();
-    if (searchSummaries != null)
-    {
-      jListFoundStructures.setModel(PDBSearchResponse
-              .getListModel(searchSummaries));
-      structuresWereFound = true;
-    }
+    int noOfStructuresFound = 0;
     String totalTime = (System.currentTimeMillis() - startTime)
             + " milli secs";
-    mainFrame.setTitle("Structure Chooser - " + foundStructures
-            + " Found (" + totalTime + ")");
+    if (discoveredStructuresSet != null
+            && !discoveredStructuresSet.isEmpty())
+    {
+      getResultTable().setModel(
+              FTSRestResponse.getTableModel(lastPdbRequest,
+                      discoveredStructuresSet));
+      noOfStructuresFound = discoveredStructuresSet.size();
+      mainFrame.setTitle(MessageManager.formatMessage(
+              "label.structure_chooser_no_of_structures",
+              noOfStructuresFound, totalTime));
+    }
+    else
+    {
+      mainFrame.setTitle(MessageManager
+              .getString("label.structure_chooser_manual_association"));
+      if (errors.size() > 0)
+      {
+        StringBuilder errorMsg = new StringBuilder();
+        for (String error : errors)
+        {
+          errorMsg.append(error).append("\n");
+        }
+        JOptionPane.showMessageDialog(this, errorMsg.toString(),
+                MessageManager.getString("label.pdb_web-service_error"),
+                JOptionPane.ERROR_MESSAGE);
+      }
+    }
+  }
+
+  public void loadLocalCachedPDBEntries()
+  {
+    ArrayList<CachedPDB> entries = new ArrayList<CachedPDB>();
+    for (SequenceI seq : selectedSequences)
+    {
+      if (seq.getDatasetSequence() != null
+              && seq.getDatasetSequence().getAllPDBEntries() != null)
+      {
+        for (PDBEntry pdbEntry : seq.getDatasetSequence()
+                .getAllPDBEntries())
+        {
+          if (pdbEntry.getFile() != null)
+          {
+            entries.add(new CachedPDB(seq, pdbEntry));
+          }
+        }
+      }
+    }
+    cachedPDBExists = !entries.isEmpty();
+    PDBEntryTableModel tableModelx = new PDBEntryTableModel(entries);
+    tbl_local_pdb.setModel(tableModelx);
   }
 
-  private String buildQuery(SequenceI seq)
+  /**
+   * Builds a query string for a given sequences using its DBRef entries
+   * 
+   * @param seq
+   *          the sequences to build a query for
+   * @return the built query string
+   */
+
+  public static String buildQuery(SequenceI seq)
   {
-    String query = seq.getName();
+    boolean isPDBRefsFound = false;
+    boolean isUniProtRefsFound = false;
     StringBuilder queryBuilder = new StringBuilder();
-    int count = 0;
-    if (seq.getDBRef() != null && seq.getDBRef().length != 0)
+    Set<String> seqRefs = new LinkedHashSet<String>();
+
+    if (seq.getAllPDBEntries() != null)
+    {
+      for (PDBEntry entry : seq.getAllPDBEntries())
+      {
+        if (isValidSeqName(entry.getId()))
+        {
+          queryBuilder.append("pdb_id:")
+                  .append(entry.getId().toLowerCase()).append(" OR ");
+          isPDBRefsFound = true;
+          // seqRefs.add(entry.getId());
+        }
+      }
+    }
+
+    if (seq.getDBRefs() != null && seq.getDBRefs().length != 0)
+    {
+      for (DBRefEntry dbRef : seq.getDBRefs())
+      {
+        if (isValidSeqName(getDBRefId(dbRef)))
+        {
+          if (dbRef.getSource().equalsIgnoreCase(DBRefSource.UNIPROT))
+          {
+            queryBuilder.append("uniprot_accession:")
+                    .append(getDBRefId(dbRef)).append(" OR ");
+            queryBuilder.append("uniprot_id:").append(getDBRefId(dbRef))
+                    .append(" OR ");
+            isUniProtRefsFound = true;
+          }
+          else if (dbRef.getSource().equalsIgnoreCase(DBRefSource.PDB))
+          {
+
+            queryBuilder.append("pdb_id:")
+                    .append(getDBRefId(dbRef).toLowerCase()).append(" OR ");
+            isPDBRefsFound = true;
+          }
+          else
+          {
+            seqRefs.add(getDBRefId(dbRef));
+          }
+        }
+      }
+    }
+
+    if (!isPDBRefsFound && !isUniProtRefsFound)
     {
-      for (DBRefEntry dbRef : seq.getDBRef())
+      String seqName = seq.getName();
+      seqName = sanitizeSeqName(seqName);
+      String[] names = seqName.toLowerCase().split("\\|");
+      for (String name : names)
       {
-        queryBuilder.append("text:").append(dbRef.getAccessionId())
-                .append(" OR ");
-        ++count;
-        if (count > 10)
+        // System.out.println("Found name : " + name);
+        name.trim();
+        if (isValidSeqName(name))
         {
-          break;
+          seqRefs.add(name);
         }
       }
-      int endIndex = queryBuilder.lastIndexOf(" OR ");
-      query = queryBuilder.toString().substring(5, endIndex);
+
+      for (String seqRef : seqRefs)
+      {
+        queryBuilder.append("text:").append(seqRef).append(" OR ");
+      }
     }
+
+    int endIndex = queryBuilder.lastIndexOf(" OR ");
+    if (queryBuilder.toString().length() < 6)
+    {
+      return null;
+    }
+    String query = queryBuilder.toString().substring(0, endIndex);
     return query;
   }
 
+  /**
+   * Remove the following special characters from input string +, -, &, !, (, ),
+   * {, }, [, ], ^, ", ~, *, ?, :, \
+   * 
+   * @param seqName
+   * @return
+   */
+  static String sanitizeSeqName(String seqName)
+  {
+    Objects.requireNonNull(seqName);
+    return seqName.replaceAll("\\[\\d*\\]", "")
+            .replaceAll("[^\\dA-Za-z|_]", "").replaceAll("\\s+", "+");
+  }
+
+  /**
+   * Ensures sequence ref names are not less than 3 characters and does not
+   * contain a database name
+   * 
+   * @param seqName
+   * @return
+   */
+  public static boolean isValidSeqName(String seqName)
+  {
+    // System.out.println("seqName : " + seqName);
+    String ignoreList = "pdb,uniprot,swiss-prot";
+    if (seqName.length() < 3)
+    {
+      return false;
+    }
+    if (seqName.contains(":"))
+    {
+      return false;
+    }
+    seqName = seqName.toLowerCase();
+    for (String ignoredEntry : ignoreList.split(","))
+    {
+      if (seqName.contains(ignoredEntry))
+      {
+        return false;
+      }
+    }
+    return true;
+  }
+
+  public static String getDBRefId(DBRefEntry dbRef)
+  {
+    String ref = dbRef.getAccessionId().replaceAll("GO:", "");
+    return ref;
+  }
+
+  /**
+   * Filters a given list of discovered structures based on supplied argument
+   * 
+   * @param fieldToFilterBy
+   *          the field to filter by
+   */
+  public void filterResultSet(final String fieldToFilterBy)
+  {
+    Thread filterThread = new Thread(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        long startTime = System.currentTimeMillis();
+        pdbRestCleint = PDBFTSRestClient.getInstance();
+        lbl_loading.setVisible(true);
+        Collection<FTSDataColumnI> wantedFields = pdbDocFieldPrefs
+                .getStructureSummaryFields();
+        Collection<FTSData> filteredResponse = new HashSet<FTSData>();
+        HashSet<String> errors = new HashSet<String>();
+
+        for (SequenceI seq : selectedSequences)
+        {
+          FTSRestRequest pdbRequest = new FTSRestRequest();
+          if (fieldToFilterBy.equalsIgnoreCase("uniprot_coverage"))
+          {
+            pdbRequest.setAllowEmptySeq(false);
+            pdbRequest.setResponseSize(1);
+            pdbRequest.setFieldToSearchBy("(");
+            pdbRequest.setSearchTerm(buildQuery(seq) + ")");
+            pdbRequest.setWantedFields(wantedFields);
+            pdbRequest.setAssociatedSequence(seq);
+            pdbRequest.setFacet(true);
+            pdbRequest.setFacetPivot(fieldToFilterBy + ",entry_entity");
+            pdbRequest.setFacetPivotMinCount(1);
+          }
+          else
+          {
+            pdbRequest.setAllowEmptySeq(false);
+            pdbRequest.setResponseSize(1);
+            pdbRequest.setFieldToSearchBy("(");
+            pdbRequest.setFieldToSortBy(fieldToFilterBy,
+                    !chk_invertFilter.isSelected());
+            pdbRequest.setSearchTerm(buildQuery(seq) + ")");
+            pdbRequest.setWantedFields(wantedFields);
+            pdbRequest.setAssociatedSequence(seq);
+          }
+          FTSRestResponse resultList;
+          try
+          {
+            resultList = pdbRestCleint.executeRequest(pdbRequest);
+          } catch (Exception e)
+          {
+            e.printStackTrace();
+            errors.add(e.getMessage());
+            continue;
+          }
+          lastPdbRequest = pdbRequest;
+          if (resultList.getSearchSummary() != null
+                  && !resultList.getSearchSummary().isEmpty())
+          {
+            filteredResponse.addAll(resultList.getSearchSummary());
+          }
+        }
+
+        String totalTime = (System.currentTimeMillis() - startTime)
+                + " milli secs";
+        if (!filteredResponse.isEmpty())
+        {
+          final int filterResponseCount = filteredResponse.size();
+          Collection<FTSData> reorderedStructuresSet = new LinkedHashSet<FTSData>();
+          reorderedStructuresSet.addAll(filteredResponse);
+          reorderedStructuresSet.addAll(discoveredStructuresSet);
+          getResultTable().setModel(
+                  FTSRestResponse.getTableModel(lastPdbRequest,
+                          reorderedStructuresSet));
+
+          FTSRestResponse.configureTableColumn(getResultTable(),
+                  wantedFields, tempUserPrefs);
+          getResultTable().getColumn("Ref Sequence").setPreferredWidth(120);
+          getResultTable().getColumn("Ref Sequence").setMinWidth(100);
+          getResultTable().getColumn("Ref Sequence").setMaxWidth(200);
+          // Update table selection model here
+          getResultTable().addRowSelectionInterval(0,
+                  filterResponseCount - 1);
+          mainFrame.setTitle(MessageManager.formatMessage(
+                  "label.structure_chooser_filter_time", totalTime));
+        }
+        else
+        {
+          mainFrame.setTitle(MessageManager.formatMessage(
+                  "label.structure_chooser_filter_time", totalTime));
+          if (errors.size() > 0)
+          {
+            StringBuilder errorMsg = new StringBuilder();
+            for (String error : errors)
+            {
+              errorMsg.append(error).append("\n");
+            }
+            JOptionPane.showMessageDialog(
+                    null,
+                    errorMsg.toString(),
+                    MessageManager.getString("label.pdb_web-service_error"),
+                    JOptionPane.ERROR_MESSAGE);
+          }
+        }
+
+        lbl_loading.setVisible(false);
+
+        validateSelections();
+      }
+    });
+    filterThread.start();
+  }
+
+  /**
+   * Handles action event for btn_pdbFromFile
+   */
   @Override
-  protected void stateChanged()
+  public void pdbFromFile_actionPerformed()
   {
-    updateCurrentView();
+    jalview.io.JalviewFileChooser chooser = new jalview.io.JalviewFileChooser(
+            jalview.bin.Cache.getProperty("LAST_DIRECTORY"));
+    chooser.setFileView(new jalview.io.JalviewFileView());
+    chooser.setDialogTitle(MessageManager.formatMessage(
+            "label.select_pdb_file_for",
+            selectedSequence.getDisplayId(false)));
+    chooser.setToolTipText(MessageManager.formatMessage(
+            "label.load_pdb_file_associate_with_sequence",
+            selectedSequence.getDisplayId(false)));
+
+    int value = chooser.showOpenDialog(null);
+    if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
+    {
+      selectedPdbFileName = chooser.getSelectedFile().getPath();
+      jalview.bin.Cache.setProperty("LAST_DIRECTORY", selectedPdbFileName);
+      validateSelections();
+    }
   }
 
-  int debounceCount = 0;
+  /**
+   * Populates the filter combo-box options dynamically depending on discovered
+   * structures
+   */
+  protected void populateFilterComboBox(boolean haveData,
+          boolean cachedPDBExists)
+  {
+    /*
+     * temporarily suspend the change listener behaviour
+     */
+    cmb_filterOption.removeItemListener(this);
+
+    cmb_filterOption.removeAllItems();
+    if (haveData)
+    {
+      cmb_filterOption.addItem(new FilterOption("Best Quality",
+              "overall_quality", VIEWS_FILTER));
+      cmb_filterOption.addItem(new FilterOption("Best Resolution",
+              "resolution", VIEWS_FILTER));
+      cmb_filterOption.addItem(new FilterOption("Most Protein Chain",
+              "number_of_protein_chains", VIEWS_FILTER));
+      cmb_filterOption.addItem(new FilterOption("Most Bound Molecules",
+              "number_of_bound_molecules", VIEWS_FILTER));
+      cmb_filterOption.addItem(new FilterOption("Most Polymer Residues",
+              "number_of_polymer_residues", VIEWS_FILTER));
+    }
+    cmb_filterOption.addItem(new FilterOption("Enter PDB Id", "-",
+            VIEWS_ENTER_ID));
+    cmb_filterOption.addItem(new FilterOption("From File", "-",
+            VIEWS_FROM_FILE));
+    FilterOption cachedOption = new FilterOption("Cached PDB Entries", "-",
+            VIEWS_LOCAL_PDB);
+    cmb_filterOption.addItem(cachedOption);
+
+    if (/*!haveData &&*/cachedPDBExists)
+    {
+      cmb_filterOption.setSelectedItem(cachedOption);
+    }
+
+    cmb_filterOption.addItemListener(this);
+  }
+
+  /**
+   * Updates the displayed view based on the selected filter option
+   */
   protected void updateCurrentView()
   {
-    FilterOptions currentOption = ((FilterOptions) filterOptionsComboBox
+    FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
             .getSelectedItem());
-    switchableViewsLayout.show(switchableViewsPanel,
-            currentOption.getView());
-    ++debounceCount;
-    if (currentOption.getView() == VIEWS_FILTER && debounceCount % 2 == 0)
+    layout_switchableViews.show(pnl_switchableViews,
+            selectedFilterOpt.getView());
+    String filterTitle = mainFrame.getTitle();
+    mainFrame.setTitle(frameTitle);
+    chk_invertFilter.setVisible(false);
+    if (selectedFilterOpt.getView() == VIEWS_FILTER)
     {
-      filterResultSet(currentOption.getValue());
+      mainFrame.setTitle(filterTitle);
+      chk_invertFilter.setVisible(true);
+      filterResultSet(selectedFilterOpt.getValue());
     }
+    else if (selectedFilterOpt.getView() == VIEWS_ENTER_ID
+            || selectedFilterOpt.getView() == VIEWS_FROM_FILE)
+    {
+      mainFrame.setTitle(MessageManager
+              .getString("label.structure_chooser_manual_association"));
+      idInputAssSeqPanel.loadCmbAssSeq();
+      fileChooserAssSeqPanel.loadCmbAssSeq();
+    }
+    validateSelections();
   }
 
-  public void filterResultSet(String filterTarget)
+  /**
+   * Validates user selection and activates the view button if all parameters
+   * are correct
+   */
+  @Override
+  public void validateSelections()
   {
-    System.out.println("-----------------> Filter by : " + filterTarget);
+    FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
+            .getSelectedItem());
+    btn_view.setEnabled(false);
+    String currentView = selectedFilterOpt.getView();
+    if (currentView == VIEWS_FILTER)
+    {
+      if (getResultTable().getSelectedRows().length > 0)
+      {
+        btn_view.setEnabled(true);
+      }
+    }
+    else if (currentView == VIEWS_LOCAL_PDB)
+    {
+      if (tbl_local_pdb.getSelectedRows().length > 0)
+      {
+        btn_view.setEnabled(true);
+      }
+    }
+    else if (currentView == VIEWS_ENTER_ID)
+    {
+      validateAssociationEnterPdb();
+    }
+    else if (currentView == VIEWS_FROM_FILE)
+    {
+      validateAssociationFromFile();
+    }
+  }
 
-    List<PDBDocField> wantedFields = new ArrayList<PDBDocField>();
-    wantedFields.add(PDBDocField.MOLECULE_TYPE);
-    wantedFields.add(PDBDocField.PDB_ID);
-    wantedFields.add(PDBDocField.GENUS);
-    wantedFields.add(PDBDocField.GENE_NAME);
-    wantedFields.add(PDBDocField.TITLE);
+  /**
+   * Validates inputs from the Manual PDB entry panel
+   */
+  public void validateAssociationEnterPdb()
+  {
+    AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) idInputAssSeqPanel
+            .getCmb_assSeq().getSelectedItem();
+    lbl_pdbManualFetchStatus.setIcon(errorImage);
+    lbl_pdbManualFetchStatus.setToolTipText("");
+    if (txt_search.getText().length() > 0)
+    {
+      lbl_pdbManualFetchStatus
+              .setToolTipText(JvSwingUtils.wrapTooltip(true, MessageManager
+                      .formatMessage("info.no_pdb_entry_found_for",
+                              txt_search.getText())));
+    }
 
-    PDBSearchRequest request = new PDBSearchRequest();
-    request.setAllowEmptySeq(false);
-    request.setResponseSize(1);
-    request.setSearchTarget("(text:");
-    request.setSortTarget(filterTarget, true);
+    if (errorWarning.length() > 0)
+    {
+      lbl_pdbManualFetchStatus.setIcon(warningImage);
+      lbl_pdbManualFetchStatus.setToolTipText(JvSwingUtils.wrapTooltip(
+              true, errorWarning.toString()));
+    }
 
-    request.setWantedFields(wantedFields);
+    if (selectedSequences.length == 1
+            || !assSeqOpt.getName().equalsIgnoreCase(
+                    "-Select Associated Seq-"))
+    {
+      txt_search.setEnabled(true);
+      if (isValidPBDEntry)
+      {
+        btn_view.setEnabled(true);
+        lbl_pdbManualFetchStatus.setToolTipText("");
+        lbl_pdbManualFetchStatus.setIcon(goodImage);
+      }
+    }
+    else
+    {
+      txt_search.setEnabled(false);
+      lbl_pdbManualFetchStatus.setIcon(errorImage);
+    }
+  }
 
-    Collection<PDBResponseSummary> searchSummaries = new HashSet<PDBResponseSummary>();
-    for (SequenceI seq : selectedSequences)
+  /**
+   * Validates inputs for the manual PDB file selection options
+   */
+  public void validateAssociationFromFile()
+  {
+    AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) fileChooserAssSeqPanel
+            .getCmb_assSeq().getSelectedItem();
+    lbl_fromFileStatus.setIcon(errorImage);
+    if (selectedSequences.length == 1
+            || (assSeqOpt != null && !assSeqOpt.getName().equalsIgnoreCase(
+                    "-Select Associated Seq-")))
     {
-      request.setSearchTerm(buildQuery(seq) + ")");
-      PDBRestClient pdbRestCleint = new PDBRestClient();
-      PDBSearchResponse resultList = pdbRestCleint.executeRequest(request);
-      if (resultList.getSearchSummary() != null
-              && !resultList.getSearchSummary().isEmpty())
+      btn_pdbFromFile.setEnabled(true);
+      if (selectedPdbFileName != null && selectedPdbFileName.length() > 0)
       {
-        searchSummaries.addAll(resultList.getSearchSummary());
+        btn_view.setEnabled(true);
+        lbl_fromFileStatus.setIcon(goodImage);
+      }
+    }
+    else
+    {
+      btn_pdbFromFile.setEnabled(false);
+      lbl_fromFileStatus.setIcon(errorImage);
+    }
+  }
 
+  @Override
+  public void cmbAssSeqStateChanged()
+  {
+    validateSelections();
+  }
+
+  /**
+   * Handles the state change event for the 'filter' combo-box and 'invert'
+   * check-box
+   */
+  @Override
+  protected void stateChanged(ItemEvent e)
+  {
+    if (e.getSource() instanceof JCheckBox)
+    {
+      updateCurrentView();
+    }
+    else
+    {
+      if (e.getStateChange() == ItemEvent.SELECTED)
+      {
+        updateCurrentView();
       }
     }
 
-    for (PDBResponseSummary summary : searchSummaries)
+  }
+
+  /**
+   * Handles action event for btn_ok
+   */
+  @Override
+  public void ok_ActionPerformed()
+  {
+    final long progressSessionId = System.currentTimeMillis();
+    final StructureSelectionManager ssm = ap.getStructureSelectionManager();
+    final int preferredHeight = pnl_filter.getHeight();
+    ssm.setProgressIndicator(this);
+    ssm.setProgressSessionId(progressSessionId);
+    new Thread(new Runnable()
+    {
+      @Override
+      public void run()
+      {
+        FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
+                .getSelectedItem());
+        String currentView = selectedFilterOpt.getView();
+        if (currentView == VIEWS_FILTER)
+        {
+          int pdbIdColIndex = getResultTable().getColumn("PDB Id")
+                  .getModelIndex();
+          int refSeqColIndex = getResultTable().getColumn("Ref Sequence")
+                  .getModelIndex();
+          int[] selectedRows = getResultTable().getSelectedRows();
+          PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
+          int count = 0;
+          ArrayList<SequenceI> selectedSeqsToView = new ArrayList<SequenceI>();
+          for (int row : selectedRows)
+          {
+            String pdbIdStr = getResultTable().getValueAt(row,
+                    pdbIdColIndex).toString();
+            SequenceI selectedSeq = (SequenceI) getResultTable()
+                    .getValueAt(row, refSeqColIndex);
+            selectedSeqsToView.add(selectedSeq);
+            PDBEntry pdbEntry = selectedSeq.getPDBEntry(pdbIdStr);
+            if (pdbEntry == null)
+            {
+              pdbEntry = getFindEntry(pdbIdStr,
+                      selectedSeq.getAllPDBEntries());
+            }
+            if (pdbEntry == null)
+            {
+              pdbEntry = new PDBEntry();
+              pdbEntry.setId(pdbIdStr);
+              pdbEntry.setType(PDBEntry.Type.PDB);
+              selectedSeq.getDatasetSequence().addPDBId(pdbEntry);
+            }
+            pdbEntriesToView[count++] = pdbEntry;
+          }
+          SequenceI[] selectedSeqs = selectedSeqsToView
+                  .toArray(new SequenceI[selectedSeqsToView.size()]);
+          launchStructureViewer(ssm, pdbEntriesToView, ap, selectedSeqs);
+        }
+        else if (currentView == VIEWS_LOCAL_PDB)
+        {
+          int[] selectedRows = tbl_local_pdb.getSelectedRows();
+          PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
+          int count = 0;
+          int pdbIdColIndex = tbl_local_pdb.getColumn("PDB Id")
+                  .getModelIndex();
+          int refSeqColIndex = tbl_local_pdb.getColumn("Ref Sequence")
+                  .getModelIndex();
+          ArrayList<SequenceI> selectedSeqsToView = new ArrayList<SequenceI>();
+          for (int row : selectedRows)
+          {
+            PDBEntry pdbEntry = (PDBEntry) tbl_local_pdb.getValueAt(row,
+                    pdbIdColIndex);
+            pdbEntriesToView[count++] = pdbEntry;
+            SequenceI selectedSeq = (SequenceI) tbl_local_pdb.getValueAt(
+                    row, refSeqColIndex);
+            selectedSeqsToView.add(selectedSeq);
+          }
+          SequenceI[] selectedSeqs = selectedSeqsToView
+                  .toArray(new SequenceI[selectedSeqsToView.size()]);
+          launchStructureViewer(ssm, pdbEntriesToView, ap, selectedSeqs);
+        }
+        else if (currentView == VIEWS_ENTER_ID)
+        {
+          SequenceI userSelectedSeq = ((AssociateSeqOptions) idInputAssSeqPanel
+                  .getCmb_assSeq().getSelectedItem()).getSequence();
+          if (userSelectedSeq != null)
+          {
+            selectedSequence = userSelectedSeq;
+          }
+
+          String pdbIdStr = txt_search.getText();
+          PDBEntry pdbEntry = selectedSequence.getPDBEntry(pdbIdStr);
+          if (pdbEntry == null)
+          {
+            pdbEntry = new PDBEntry();
+            if (pdbIdStr.split(":").length > 1)
+            {
+              pdbEntry.setId(pdbIdStr.split(":")[0]);
+              pdbEntry.setChainCode(pdbIdStr.split(":")[1].toUpperCase());
+            }
+            else
+            {
+              pdbEntry.setId(pdbIdStr);
+            }
+            pdbEntry.setType(PDBEntry.Type.PDB);
+            selectedSequence.getDatasetSequence().addPDBId(pdbEntry);
+          }
+
+          PDBEntry[] pdbEntriesToView = new PDBEntry[] { pdbEntry };
+          launchStructureViewer(ssm, pdbEntriesToView, ap,
+                  new SequenceI[] { selectedSequence });
+        }
+        else if (currentView == VIEWS_FROM_FILE)
+        {
+          SequenceI userSelectedSeq = ((AssociateSeqOptions) fileChooserAssSeqPanel
+                  .getCmb_assSeq().getSelectedItem()).getSequence();
+          if (userSelectedSeq != null)
+          {
+            selectedSequence = userSelectedSeq;
+          }
+          PDBEntry fileEntry = new AssociatePdbFileWithSeq()
+                  .associatePdbWithSeq(selectedPdbFileName,
+                          jalview.io.AppletFormatAdapter.FILE,
+                          selectedSequence, true, Desktop.instance);
+
+          launchStructureViewer(ssm, new PDBEntry[] { fileEntry }, ap,
+                  new SequenceI[] { selectedSequence });
+        }
+        closeAction(preferredHeight);
+      }
+    }).start();
+  }
+
+  private PDBEntry getFindEntry(String id, Vector<PDBEntry> pdbEntries)
+  {
+    Objects.requireNonNull(id);
+    Objects.requireNonNull(pdbEntries);
+    PDBEntry foundEntry = null;
+    for (PDBEntry entry : pdbEntries)
     {
-      jListFoundStructures.setSelectedValue(summary, true);
-      // jListFoundStructures.
-      break;
+      if (entry.getId().equalsIgnoreCase(id))
+      {
+        return entry;
+      }
     }
-    System.out.println("Found item count : " + searchSummaries.size());
+    return foundEntry;
   }
 
-  public void pdbFromFile_actionPerformed()
+  private void launchStructureViewer(StructureSelectionManager ssm,
+          final PDBEntry[] pdbEntriesToView,
+          final AlignmentPanel alignPanel, SequenceI[] sequences)
   {
-    jalview.io.JalviewFileChooser chooser = new jalview.io.JalviewFileChooser(
-            jalview.bin.Cache.getProperty("LAST_DIRECTORY"));
-    chooser.setFileView(new jalview.io.JalviewFileView());
-    chooser.setDialogTitle(MessageManager.formatMessage(
-            "label.select_pdb_file_for", new String[]
-            { selectedSequence.getDisplayId(false) }));
-    chooser.setToolTipText(MessageManager.formatMessage(
-            "label.load_pdb_file_associate_with_sequence", new String[]
-            { selectedSequence.getDisplayId(false) }));
+    ssm.setProgressBar(MessageManager
+            .getString("status.launching_3d_structure_viewer"));
+    final StructureViewer sViewer = new StructureViewer(ssm);
 
-    int value = chooser.showOpenDialog(null);
+    if (SiftsSettings.isMapWithSifts())
+    {
+      List<SequenceI> seqsWithoutSourceDBRef = new ArrayList<SequenceI>();
+      int p = 0;
+      // TODO: skip PDBEntry:Sequence pairs where PDBEntry doesn't look like a
+      // real PDB ID. For moment, we can also safely do this if there is already
+      // a known mapping between the PDBEntry and the sequence.
+      for (SequenceI seq : sequences)
+      {
+        PDBEntry pdbe = pdbEntriesToView[p++];
+        if (pdbe != null && pdbe.getFile() != null)
+        {
+          StructureMapping[] smm = ssm.getMapping(pdbe.getFile());
+          if (smm != null && smm.length > 0)
+          {
+            for (StructureMapping sm : smm)
+            {
+              if (sm.getSequence() == seq)
+              {
+                continue;
+              }
+            }
+          }
+        }
+        if (seq.getPrimaryDBRefs().size() == 0)
+        {
+          seqsWithoutSourceDBRef.add(seq);
+          continue;
+        }
+      }
+      if (!seqsWithoutSourceDBRef.isEmpty())
+      {
+        int y = seqsWithoutSourceDBRef.size();
+        ssm.setProgressBar(null);
+        ssm.setProgressBar(MessageManager.formatMessage(
+                "status.fetching_dbrefs_for_sequences_without_valid_refs",
+                y));
+        SequenceI[] seqWithoutSrcDBRef = new SequenceI[y];
+        int x = 0;
+        for (SequenceI fSeq : seqsWithoutSourceDBRef)
+        {
+          seqWithoutSrcDBRef[x++] = fSeq;
+        }
+        DBRefFetcher dbRefFetcher = new DBRefFetcher(seqWithoutSrcDBRef);
+        dbRefFetcher.fetchDBRefs(true);
+      }
+    }
+    if (pdbEntriesToView.length > 1)
+    {
+      ArrayList<SequenceI[]> seqsMap = new ArrayList<SequenceI[]>();
+      for (SequenceI seq : sequences)
+      {
+        seqsMap.add(new SequenceI[] { seq });
+      }
+      SequenceI[][] collatedSeqs = seqsMap.toArray(new SequenceI[0][0]);
+      ssm.setProgressBar(null);
+      ssm.setProgressBar(MessageManager
+              .getString("status.fetching_3d_structures_for_selected_entries"));
+      sViewer.viewStructures(pdbEntriesToView, collatedSeqs, alignPanel);
+    }
+    else
+    {
+      ssm.setProgressBar(null);
+      ssm.setProgressBar(MessageManager.formatMessage(
+              "status.fetching_3d_structures_for",
+              pdbEntriesToView[0].getId()));
+      sViewer.viewStructures(pdbEntriesToView[0], sequences, alignPanel);
+    }
+  }
 
-    if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
+  /**
+   * Populates the combo-box used in associating manually fetched structures to
+   * a unique sequence when more than one sequence selection is made.
+   */
+  @Override
+  public void populateCmbAssociateSeqOptions(
+          JComboBox<AssociateSeqOptions> cmb_assSeq, JLabel lbl_associateSeq)
+  {
+    cmb_assSeq.removeAllItems();
+    cmb_assSeq.addItem(new AssociateSeqOptions("-Select Associated Seq-",
+            null));
+    lbl_associateSeq.setVisible(false);
+    if (selectedSequences.length > 1)
     {
-      String choice = chooser.getSelectedFile().getPath();
-      jalview.bin.Cache.setProperty("LAST_DIRECTORY", choice);
-      new AssociatePdbFileWithSeq().associatePdbWithSeq(choice,
-              jalview.io.AppletFormatAdapter.FILE, selectedSequence, true,
-              Desktop.instance);
+      for (SequenceI seq : selectedSequences)
+      {
+        cmb_assSeq.addItem(new AssociateSeqOptions(seq));
+      }
     }
+    else
+    {
+      String seqName = selectedSequence.getDisplayId(false);
+      seqName = seqName.length() <= 40 ? seqName : seqName.substring(0, 39);
+      lbl_associateSeq.setText(seqName);
+      lbl_associateSeq.setVisible(true);
+      cmb_assSeq.setVisible(false);
+    }
+  }
 
+  public boolean isStructuresDiscovered()
+  {
+    return discoveredStructuresSet != null
+            && !discoveredStructuresSet.isEmpty();
   }
 
+  public Collection<FTSData> getDiscoveredStructuresSet()
+  {
+    return discoveredStructuresSet;
+  }
 
-  // rpdbview.addActionListener(new ActionListener()
-  // {
-  //
-  // @Override
-  // public void actionPerformed(ActionEvent e)
-  // {
-  // new StructureViewer(ap.getStructureSelectionManager())
-  // .viewStructures(ap, pr, ap.av.collateForPDB(pr));
-  // }
-  // });
+  @Override
+  protected void txt_search_ActionPerformed()
+  {
+    new Thread()
+    {
+      @Override
+      public void run()
+      {
+        errorWarning.setLength(0);
+        isValidPBDEntry = false;
+        if (txt_search.getText().length() > 0)
+        {
+          String searchTerm = txt_search.getText().toLowerCase();
+          searchTerm = searchTerm.split(":")[0];
+          // System.out.println(">>>>> search term : " + searchTerm);
+          List<FTSDataColumnI> wantedFields = new ArrayList<FTSDataColumnI>();
+          FTSRestRequest pdbRequest = new FTSRestRequest();
+          pdbRequest.setAllowEmptySeq(false);
+          pdbRequest.setResponseSize(1);
+          pdbRequest.setFieldToSearchBy("(pdb_id:");
+          pdbRequest.setWantedFields(wantedFields);
+          pdbRequest.setSearchTerm(searchTerm + ")");
+          pdbRequest.setAssociatedSequence(selectedSequence);
+          pdbRestCleint = PDBFTSRestClient.getInstance();
+          wantedFields.add(pdbRestCleint.getPrimaryKeyColumn());
+          FTSRestResponse resultList;
+          try
+          {
+            resultList = pdbRestCleint.executeRequest(pdbRequest);
+          } catch (Exception e)
+          {
+            errorWarning.append(e.getMessage());
+            return;
+          } finally
+          {
+            validateSelections();
+          }
+          if (resultList.getSearchSummary() != null
+                  && resultList.getSearchSummary().size() > 0)
+          {
+            isValidPBDEntry = true;
+          }
+        }
+        validateSelections();
+      }
+    }.start();
+  }
 
-  public void enterPDB_actionPerformed()
+  @Override
+  public void tabRefresh()
   {
-    String id = JOptionPane.showInternalInputDialog(Desktop.desktop,
-            MessageManager.getString("label.enter_pdb_id"),
-            MessageManager.getString("label.enter_pdb_id"),
-            JOptionPane.QUESTION_MESSAGE);
-    if (id != null && id.length() > 0)
+    if (selectedSequences != null)
     {
-      PDBEntry entry = new PDBEntry();
-      entry.setId(id.toUpperCase());
-      selectedSequence.getDatasetSequence().addPDBId(entry);
+      Thread refreshThread = new Thread(new Runnable()
+      {
+        @Override
+        public void run()
+        {
+          fetchStructuresMetaData();
+          filterResultSet(((FilterOption) cmb_filterOption
+                  .getSelectedItem()).getValue());
+        }
+      });
+      refreshThread.start();
     }
   }
 
-  // public static void main(String[] args)
-  // {
-  // SwingUtilities.invokeLater(new Runnable()
-  // {
-  // public void run()
-  // {
-  // new StructureChooser(null, null);
-  // }
-  // });
-  // }
+  public class PDBEntryTableModel extends AbstractTableModel
+  {
+    String[] columns = { "Ref Sequence", "PDB Id", "Chain", "Type", "File" };
+
+    private List<CachedPDB> pdbEntries;
+
+    public PDBEntryTableModel(List<CachedPDB> pdbEntries)
+    {
+      this.pdbEntries = new ArrayList<CachedPDB>(pdbEntries);
+    }
 
+    @Override
+    public String getColumnName(int columnIndex)
+    {
+      return columns[columnIndex];
+    }
 
+    @Override
+    public int getRowCount()
+    {
+      return pdbEntries.size();
+    }
+
+    @Override
+    public int getColumnCount()
+    {
+      return columns.length;
+    }
+
+    @Override
+    public boolean isCellEditable(int row, int column)
+    {
+      return false;
+    }
+
+    @Override
+    public Object getValueAt(int rowIndex, int columnIndex)
+    {
+      Object value = "??";
+      CachedPDB entry = pdbEntries.get(rowIndex);
+      switch (columnIndex)
+      {
+      case 0:
+        value = entry.getSequence();
+        break;
+      case 1:
+        value = entry.getPdbEntry();
+        break;
+      case 2:
+        value = entry.getPdbEntry().getChainCode() == null ? "_" : entry
+                .getPdbEntry().getChainCode();
+        break;
+      case 3:
+        value = entry.getPdbEntry().getType();
+        break;
+      case 4:
+        value = entry.getPdbEntry().getFile();
+        break;
+      }
+      return value;
+    }
+
+    @Override
+    public Class<?> getColumnClass(int columnIndex)
+    {
+      return columnIndex == 0 ? SequenceI.class : PDBEntry.class;
+    }
+
+    public CachedPDB getPDBEntryAt(int row)
+    {
+      return pdbEntries.get(row);
+    }
+
+  }
+
+  private class CachedPDB
+  {
+    private SequenceI sequence;
+
+    private PDBEntry pdbEntry;
+
+    public CachedPDB(SequenceI sequence, PDBEntry pdbEntry)
+    {
+      this.sequence = sequence;
+      this.pdbEntry = pdbEntry;
+    }
+
+    public SequenceI getSequence()
+    {
+      return sequence;
+    }
+
+    public PDBEntry getPdbEntry()
+    {
+      return pdbEntry;
+    }
+
+  }
+
+  private IProgressIndicator progressBar;
+
+  @Override
+  public void setProgressBar(String message, long id)
+  {
+    progressBar.setProgressBar(message, id);
+  }
+
+  @Override
+  public void registerHandler(long id, IProgressIndicatorHandler handler)
+  {
+    progressBar.registerHandler(id, handler);
+  }
+
+  @Override
+  public boolean operationInProgress()
+  {
+    return progressBar.operationInProgress();
+  }
 }