JAL-2810 JAL-2886 i18n
[jalview.git] / src / jalview / gui / StructureChooser.java
index 2944cd8..217f653 100644 (file)
@@ -1,7 +1,6 @@
 /*
-
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2)
- * Copyright (C) 2014 The Jalview Authors
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
  * 
  * This file is part of Jalview.
  * 
 
 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.io.DataSourceType;
 import jalview.jbgui.GStructureChooser;
-import jalview.jbgui.PDBDocFieldPreferences;
+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.PDBRestRequest;
-import jalview.ws.uimodel.PDBRestResponse;
-import jalview.ws.uimodel.PDBRestResponse.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.Hashtable;
 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.DefaultTableModel;
-
+import javax.swing.table.AbstractTableModel;
 
 /**
  * Provides the behaviors for the Structure chooser Panel
@@ -58,8 +63,9 @@ import javax.swing.table.DefaultTableModel;
  */
 @SuppressWarnings("serial")
 public class StructureChooser extends GStructureChooser
+        implements IProgressIndicator
 {
-  private boolean structuresDiscovered = false;
+  private static int MAX_QLENGTH = 7820;
 
   private SequenceI selectedSequence;
 
@@ -67,17 +73,17 @@ public class StructureChooser extends GStructureChooser
 
   private IProgressIndicator progressIndicator;
 
-  private Collection<PDBResponseSummary> discoveredStructuresSet;
+  private Collection<FTSData> discoveredStructuresSet;
 
-  private PDBRestRequest lastPdbRequest;
+  private FTSRestRequest lastPdbRequest;
 
-  private PDBRestClient pdbRestCleint;
+  private FTSRestClientI pdbRestCleint;
 
   private String selectedPdbFileName;
 
   private boolean isValidPBDEntry;
 
-  private static Hashtable<String, PDBEntry> cachedEntryMap;
+  private boolean cachedPDBExists;
 
   public StructureChooser(SequenceI[] selectedSeqs, SequenceI selectedSeq,
           AlignmentPanel ap)
@@ -94,17 +100,28 @@ public class StructureChooser extends GStructureChooser
    */
   public void init()
   {
+    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();
-        String msg = MessageManager.getString("status.fetching_db_refs");
-        updateProgressIndicator(msg, startTime);
+        updateProgressIndicator(MessageManager
+                .getString("status.loading_cached_pdb_entries"), startTime);
         loadLocalCachedPDBEntries();
+        updateProgressIndicator(null, startTime);
+        updateProgressIndicator(MessageManager.getString(
+                "status.searching_for_pdb_structures"), startTime);
         fetchStructuresMetaData();
-        populateFilterComboBox();
+        // revise filter options if no results were found
+        populateFilterComboBox(isStructuresDiscovered(), cachedPDBExists);
         updateProgressIndicator(null, startTime);
         mainFrame.setVisible(true);
         updateCurrentView();
@@ -136,27 +153,32 @@ public class StructureChooser extends GStructureChooser
   public void fetchStructuresMetaData()
   {
     long startTime = System.currentTimeMillis();
-    Collection<PDBDocField> wantedFields = PDBDocFieldPreferences
+    pdbRestCleint = PDBFTSRestClient.getInstance();
+    Collection<FTSDataColumnI> wantedFields = pdbDocFieldPrefs
             .getStructureSummaryFields();
 
-    discoveredStructuresSet = new LinkedHashSet<PDBResponseSummary>();
-    HashSet<String> errors = new HashSet<String>();
+    discoveredStructuresSet = new LinkedHashSet<>();
+    HashSet<String> errors = new HashSet<>();
     for (SequenceI seq : selectedSequences)
     {
-      PDBRestRequest pdbRequest = new PDBRestRequest();
+      FTSRestRequest pdbRequest = new FTSRestRequest();
       pdbRequest.setAllowEmptySeq(false);
       pdbRequest.setResponseSize(500);
-      pdbRequest.setFieldToSearchBy("(text:");
+      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.getName());
-      pdbRestCleint = new PDBRestClient();
-      PDBRestResponse resultList;
+      pdbRequest.setAssociatedSequence(seq);
+      FTSRestResponse resultList;
       try
       {
         resultList = pdbRestCleint.executeRequest(pdbRequest);
       } catch (Exception e)
       {
+        e.printStackTrace();
         errors.add(e.getMessage());
         continue;
       }
@@ -165,7 +187,6 @@ public class StructureChooser extends GStructureChooser
               && !resultList.getSearchSummary().isEmpty())
       {
         discoveredStructuresSet.addAll(resultList.getSearchSummary());
-        updateSequencePDBEntries(seq, resultList.getSearchSummary());
       }
     }
 
@@ -175,91 +196,52 @@ public class StructureChooser extends GStructureChooser
     if (discoveredStructuresSet != null
             && !discoveredStructuresSet.isEmpty())
     {
-      tbl_summary.setModel(PDBRestResponse.getTableModel(lastPdbRequest,
-              discoveredStructuresSet));
-      structuresDiscovered = true;
+      getResultTable().setModel(FTSRestResponse
+              .getTableModel(lastPdbRequest, discoveredStructuresSet));
       noOfStructuresFound = discoveredStructuresSet.size();
-      mainFrame.setTitle("Structure Chooser - " + noOfStructuresFound
-              + " Found (" + totalTime + ")");
+      mainFrame.setTitle(MessageManager.formatMessage(
+              "label.structure_chooser_no_of_structures",
+              noOfStructuresFound, totalTime));
     }
     else
     {
-      mainFrame
-.setTitle("Structure Chooser - Manual association");
+      mainFrame.setTitle(MessageManager
+              .getString("label.structure_chooser_manual_association"));
       if (errors.size() > 0)
       {
-        StringBuilder errorMsg = new StringBuilder(
-                "Operation was unsucessful due to the following: \n");
+        StringBuilder errorMsg = new StringBuilder();
         for (String error : errors)
         {
           errorMsg.append(error).append("\n");
         }
-        JOptionPane.showMessageDialog(this, errorMsg.toString(),
-                "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
+        JvOptionPane.showMessageDialog(this, errorMsg.toString(),
+                MessageManager.getString("label.pdb_web-service_error"),
+                JvOptionPane.ERROR_MESSAGE);
       }
     }
   }
 
   public void loadLocalCachedPDBEntries()
   {
-    DefaultTableModel tableModel = new DefaultTableModel();
-    tableModel.addColumn("Sequence");
-    tableModel.addColumn("PDB Id");
-    tableModel.addColumn("Chain");
-    tableModel.addColumn("Type");
-    tableModel.addColumn("File");
-    cachedEntryMap = new Hashtable<String, PDBEntry>();
+    ArrayList<CachedPDB> entries = new ArrayList<>();
     for (SequenceI seq : selectedSequences)
     {
       if (seq.getDatasetSequence() != null
-              && seq.getDatasetSequence().getPDBId() != null)
+              && seq.getDatasetSequence().getAllPDBEntries() != null)
       {
-        for (PDBEntry pdbEntry : seq.getDatasetSequence().getPDBId())
+        for (PDBEntry pdbEntry : seq.getDatasetSequence()
+                .getAllPDBEntries())
         {
-
-          String chain = pdbEntry.getChainCode() == null ? "_" : pdbEntry
-                  .getChainCode();
-          String[] pdbEntryRowData = new String[]
-          { seq.getDisplayId(false), pdbEntry.getId(),
- chain,
-              pdbEntry.getType(),
-              pdbEntry.getFile() };
           if (pdbEntry.getFile() != null)
           {
-            tableModel.addRow(pdbEntryRowData);
+            entries.add(new CachedPDB(seq, pdbEntry));
           }
-          cachedEntryMap.put(pdbEntry.getId().toLowerCase(),
-                  pdbEntry);
         }
       }
     }
-    tbl_local_pdb.setModel(tableModel);
-  }
-
-  /**
-   * Update the PDBEntry for a given sequence with values retrieved from
-   * PDBResponseSummary
-   * 
-   * @param seq
-   *          the Sequence to update its DBRef entry
-   * @param responseSummaries
-   *          a collection of PDBResponseSummary
-   */
-  public void updateSequencePDBEntries(SequenceI seq,
-          Collection<PDBResponseSummary> responseSummaries)
-  {
-    for (PDBResponseSummary response : responseSummaries)
-    {
-      String pdbIdStr = response.getPdbId();
-      PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
-      if (pdbEntry == null)
-      {
-        pdbEntry = new PDBEntry();
-        pdbEntry.setId(pdbIdStr);
-        pdbEntry.setType(PDBEntry.Type.PDB);
-      }
-      seq.getDatasetSequence().addPDBId(pdbEntry);
-    }
+    cachedPDBExists = !entries.isEmpty();
+    PDBEntryTableModel tableModelx = new PDBEntryTableModel(entries);
+    tbl_local_pdb.setModel(tableModelx);
   }
 
   /**
@@ -272,52 +254,100 @@ public class StructureChooser extends GStructureChooser
 
   public static String buildQuery(SequenceI seq)
   {
-    HashSet<String> seqRefs = new LinkedHashSet<String>();
-    String seqName = seq.getName();
-    String[] names = seqName.toLowerCase().split("\\|");
-    for (String name : names)
-    {
-      // System.out.println("Found name : " + name);
-      name.trim();
-      if (isValidSeqName(name))
+    boolean isPDBRefsFound = false;
+    boolean isUniProtRefsFound = false;
+    StringBuilder queryBuilder = new StringBuilder();
+    Set<String> seqRefs = new LinkedHashSet<>();
+
+    if (seq.getAllPDBEntries() != null
+            && queryBuilder.length() < MAX_QLENGTH)
+    {
+      for (PDBEntry entry : seq.getAllPDBEntries())
       {
-        seqRefs.add(name);
+        if (isValidSeqName(entry.getId()))
+        {
+          queryBuilder.append("pdb_id:").append(entry.getId().toLowerCase())
+                  .append(" OR ");
+          isPDBRefsFound = true;
+        }
       }
     }
 
-    if (seq.getPDBId() != null)
+    if (seq.getDBRefs() != null && seq.getDBRefs().length != 0)
     {
-      for (PDBEntry entry : seq.getPDBId())
+      for (DBRefEntry dbRef : seq.getDBRefs())
       {
-        seqRefs.add(entry.getId());
+        if (isValidSeqName(getDBRefId(dbRef))
+                && queryBuilder.length() < MAX_QLENGTH)
+        {
+          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 (seq.getDBRef() != null && seq.getDBRef().length != 0)
+    if (!isPDBRefsFound && !isUniProtRefsFound)
     {
-      int count = 0;
-      for (DBRefEntry dbRef : seq.getDBRef())
+      String seqName = seq.getName();
+      seqName = sanitizeSeqName(seqName);
+      String[] names = seqName.toLowerCase().split("\\|");
+      for (String name : names)
       {
-        seqRefs.add(getDBRefId(dbRef));
-        ++count;
-        if (count > 10)
+        // System.out.println("Found name : " + name);
+        name.trim();
+        if (isValidSeqName(name))
         {
-          break;
+          seqRefs.add(name);
         }
       }
+
+      for (String seqRef : seqRefs)
+      {
+        queryBuilder.append("text:").append(seqRef).append(" OR ");
+      }
     }
 
-    StringBuilder queryBuilder = new StringBuilder();
-    for (String seqRef : seqRefs)
+    int endIndex = queryBuilder.lastIndexOf(" OR ");
+    if (queryBuilder.toString().length() < 6)
     {
-      queryBuilder.append("text:").append(seqRef).append(" OR ");
+      return null;
     }
-    int endIndex = queryBuilder.lastIndexOf(" OR ");
-    String query = queryBuilder.toString().substring(5, endIndex);
+    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
    * 
@@ -326,14 +356,20 @@ public class StructureChooser extends GStructureChooser
    */
   public static boolean isValidSeqName(String seqName)
   {
-    String ignoreList = "pdb,uniprot";
+    // 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.equalsIgnoreCase(ignoredEntry))
+      if (seqName.contains(ignoredEntry))
       {
         return false;
       }
@@ -361,29 +397,46 @@ public class StructureChooser extends GStructureChooser
       public void run()
       {
         long startTime = System.currentTimeMillis();
+        pdbRestCleint = PDBFTSRestClient.getInstance();
         lbl_loading.setVisible(true);
-        Collection<PDBDocField> wantedFields = PDBDocFieldPreferences
+        Collection<FTSDataColumnI> wantedFields = pdbDocFieldPrefs
                 .getStructureSummaryFields();
-        Collection<PDBResponseSummary> filteredResponse = new HashSet<PDBResponseSummary>();
-        HashSet<String> errors = new HashSet<String>();
+        Collection<FTSData> filteredResponse = new HashSet<>();
+        HashSet<String> errors = new HashSet<>();
+
         for (SequenceI seq : selectedSequences)
         {
-          PDBRestRequest pdbRequest = new PDBRestRequest();
-          pdbRequest.setAllowEmptySeq(false);
-          pdbRequest.setResponseSize(1);
-          pdbRequest.setFieldToSearchBy("(text:");
-          pdbRequest.setFieldToSortBy(fieldToFilterBy,
-                  !chk_invertFilter.isSelected());
-          pdbRequest.setSearchTerm(buildQuery(seq) + ")");
-          pdbRequest.setWantedFields(wantedFields);
-          pdbRequest.setAssociatedSequence(seq.getName());
-          pdbRestCleint = new PDBRestClient();
-          PDBRestResponse resultList;
+          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;
           }
@@ -400,32 +453,37 @@ public class StructureChooser extends GStructureChooser
         if (!filteredResponse.isEmpty())
         {
           final int filterResponseCount = filteredResponse.size();
-          Collection<PDBResponseSummary> reorderedStructuresSet = new LinkedHashSet<PDBResponseSummary>();
+          Collection<FTSData> reorderedStructuresSet = new LinkedHashSet<>();
           reorderedStructuresSet.addAll(filteredResponse);
           reorderedStructuresSet.addAll(discoveredStructuresSet);
-          tbl_summary.setModel(PDBRestResponse.getTableModel(
-                  lastPdbRequest, reorderedStructuresSet));
+          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
-          tbl_summary.addRowSelectionInterval(0, filterResponseCount - 1);
-
-          mainFrame.setTitle("Structure Chooser - Filter time ("
-                  + totalTime + ")");
+          getResultTable().addRowSelectionInterval(0,
+                  filterResponseCount - 1);
+          mainFrame.setTitle(MessageManager.formatMessage(
+                  "label.structure_chooser_filter_time", totalTime));
         }
         else
         {
-          mainFrame.setTitle("Structure Chooser - Filter time ("
-                  + totalTime + ")");
+          mainFrame.setTitle(MessageManager.formatMessage(
+                  "label.structure_chooser_filter_time", totalTime));
           if (errors.size() > 0)
           {
-            StringBuilder errorMsg = new StringBuilder(
-                    "Operation unsucessful due to the following: \n");
+            StringBuilder errorMsg = new StringBuilder();
             for (String error : errors)
             {
               errorMsg.append(error).append("\n");
             }
-            JOptionPane.showMessageDialog(null, errorMsg.toString(),
-                    "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
+            JvOptionPane.showMessageDialog(null, errorMsg.toString(),
+                    MessageManager.getString("label.pdb_web-service_error"),
+                    JvOptionPane.ERROR_MESSAGE);
           }
         }
 
@@ -437,21 +495,21 @@ public class StructureChooser extends GStructureChooser
     filterThread.start();
   }
 
-
   /**
    * Handles action event for btn_pdbFromFile
    */
+  @Override
   public void pdbFromFile_actionPerformed()
   {
     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.setDialogTitle(
+            MessageManager.formatMessage("label.select_pdb_file_for",
+                    selectedSequence.getDisplayId(false)));
     chooser.setToolTipText(MessageManager.formatMessage(
-            "label.load_pdb_file_associate_with_sequence", new String[]
-            { selectedSequence.getDisplayId(false) }));
+            "label.load_pdb_file_associate_with_sequence",
+            selectedSequence.getDisplayId(false)));
 
     int value = chooser.showOpenDialog(null);
     if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
@@ -466,29 +524,50 @@ public class StructureChooser extends GStructureChooser
    * Populates the filter combo-box options dynamically depending on discovered
    * structures
    */
-  protected void populateFilterComboBox()
+  protected void populateFilterComboBox(boolean haveData,
+          boolean cachedPDBExist)
   {
-    if (isStructuresDiscovered())
-    {
-      cmb_filterOption.addItem(new FilterOption("Best Quality",
-              PDBDocField.OVERALL_QUALITY.getCode(), VIEWS_FILTER));
-      cmb_filterOption.addItem(new FilterOption("Best UniProt Coverage",
-              PDBDocField.UNIPROT_COVERAGE.getCode(), VIEWS_FILTER));
-      cmb_filterOption.addItem(new FilterOption("Highest Resolution",
-              PDBDocField.RESOLUTION.getCode(), VIEWS_FILTER));
-      cmb_filterOption.addItem(new FilterOption("Highest Protein Chain",
-              PDBDocField.PROTEIN_CHAIN_COUNT.getCode(), VIEWS_FILTER));
-      cmb_filterOption.addItem(new FilterOption("Highest Bound Molecules",
-              PDBDocField.BOUND_MOLECULE_COUNT.getCode(), VIEWS_FILTER));
-      cmb_filterOption.addItem(new FilterOption("Highest Polymer Residues",
-              PDBDocField.POLYMER_RESIDUE_COUNT.getCode(), VIEWS_FILTER));
-    }
-    cmb_filterOption.addItem(new FilterOption("Enter PDB Id", "-",
-            VIEWS_ENTER_ID));
-    cmb_filterOption.addItem(new FilterOption("From File", "-",
-            VIEWS_FROM_FILE));
-    cmb_filterOption.addItem(new FilterOption("Cached PDB Entries", "-",
-            VIEWS_LOCAL_PDB));
+    /*
+     * temporarily suspend the change listener behaviour
+     */
+    cmb_filterOption.removeItemListener(this);
+
+    cmb_filterOption.removeAllItems();
+    if (haveData)
+    {
+      cmb_filterOption.addItem(new FilterOption(
+              MessageManager.getString("label.best_quality"),
+              "overall_quality", VIEWS_FILTER, false));
+      cmb_filterOption.addItem(new FilterOption(
+              MessageManager.getString("label.best_resolution"),
+              "resolution", VIEWS_FILTER, false));
+      cmb_filterOption.addItem(new FilterOption(
+              MessageManager.getString("label.most_protein_chain"),
+              "number_of_protein_chains", VIEWS_FILTER, false));
+      cmb_filterOption.addItem(new FilterOption(
+              MessageManager.getString("label.most_bound_molecules"),
+              "number_of_bound_molecules", VIEWS_FILTER, false));
+      cmb_filterOption.addItem(new FilterOption(
+              MessageManager.getString("label.most_polymer_residues"),
+              "number_of_polymer_residues", VIEWS_FILTER, true));
+    }
+    cmb_filterOption.addItem(
+            new FilterOption(MessageManager.getString("label.enter_pdb_id"),
+                    "-", VIEWS_ENTER_ID, false));
+    cmb_filterOption.addItem(
+            new FilterOption(MessageManager.getString("label.from_file"),
+                    "-", VIEWS_FROM_FILE, false));
+
+    if (cachedPDBExist)
+    {
+      FilterOption cachedOption = new FilterOption(
+              MessageManager.getString("label.cached_structures"),
+              "-", VIEWS_LOCAL_PDB, false);
+      cmb_filterOption.addItem(cachedOption);
+      cmb_filterOption.setSelectedItem(cachedOption);
+    }
+
+    cmb_filterOption.addItemListener(this);
   }
 
   /**
@@ -512,7 +591,8 @@ public class StructureChooser extends GStructureChooser
     else if (selectedFilterOpt.getView() == VIEWS_ENTER_ID
             || selectedFilterOpt.getView() == VIEWS_FROM_FILE)
     {
-      mainFrame.setTitle(filterTitle);
+      mainFrame.setTitle(MessageManager
+              .getString("label.structure_chooser_manual_association"));
       idInputAssSeqPanel.loadCmbAssSeq();
       fileChooserAssSeqPanel.loadCmbAssSeq();
     }
@@ -523,6 +603,7 @@ public class StructureChooser extends GStructureChooser
    * Validates user selection and activates the view button if all parameters
    * are correct
    */
+  @Override
   public void validateSelections()
   {
     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
@@ -531,7 +612,7 @@ public class StructureChooser extends GStructureChooser
     String currentView = selectedFilterOpt.getView();
     if (currentView == VIEWS_FILTER)
     {
-      if (tbl_summary.getSelectedRows().length > 0)
+      if (getResultTable().getSelectedRows().length > 0)
       {
         btn_view.setEnabled(true);
       }
@@ -561,14 +642,29 @@ public class StructureChooser extends GStructureChooser
     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) idInputAssSeqPanel
             .getCmb_assSeq().getSelectedItem();
     lbl_pdbManualFetchStatus.setIcon(errorImage);
-    if (selectedSequences.length == 1
-            || !assSeqOpt.getName().equalsIgnoreCase(
-                    "-Select Associated Seq-"))
+    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())));
+    }
+
+    if (errorWarning.length() > 0)
+    {
+      lbl_pdbManualFetchStatus.setIcon(warningImage);
+      lbl_pdbManualFetchStatus.setToolTipText(
+              JvSwingUtils.wrapTooltip(true, errorWarning.toString()));
+    }
+
+    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);
       }
     }
@@ -587,10 +683,8 @@ public class StructureChooser extends GStructureChooser
     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) fileChooserAssSeqPanel
             .getCmb_assSeq().getSelectedItem();
     lbl_fromFileStatus.setIcon(errorImage);
-    if (selectedSequences.length == 1
-            || (assSeqOpt != null
-            && !assSeqOpt.getName().equalsIgnoreCase(
-                    "-Select Associated Seq-")))
+    if (selectedSequences.length == 1 || (assSeqOpt != null && !assSeqOpt
+            .getName().equalsIgnoreCase("-Select Associated Seq-")))
     {
       btn_pdbFromFile.setEnabled(true);
       if (selectedPdbFileName != null && selectedPdbFileName.length() > 0)
@@ -639,120 +733,235 @@ public class StructureChooser extends GStructureChooser
   @Override
   public void ok_ActionPerformed()
   {
-    FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
-            .getSelectedItem());
-    String currentView = selectedFilterOpt.getView();
-    if (currentView == VIEWS_FILTER)
+    final StructureSelectionManager ssm = ap.getStructureSelectionManager();
+
+    final int preferredHeight = pnl_filter.getHeight();
+
+    new Thread(new Runnable()
     {
-      int pdbIdCol = PDBRestClient.getPDBIdColumIndex(
-              lastPdbRequest.getWantedFields(), true);
-      int[] selectedRows = tbl_summary.getSelectedRows();
-      PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
-      int count = 0;
-      for (int summaryRow : selectedRows)
+      @Override
+      public void run()
       {
-        String pdbIdStr = tbl_summary.getValueAt(summaryRow, pdbIdCol)
-                .toString();
+        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;
+          List<SequenceI> selectedSeqsToView = new ArrayList<>();
+          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());
+            }
 
-        PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
-        if (pdbEntry == null)
+            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)
         {
-          pdbEntry = new PDBEntry();
-          pdbEntry.setId(pdbIdStr);
-          pdbEntry.setType(PDBEntry.Type.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();
+          List<SequenceI> selectedSeqsToView = new ArrayList<>();
+          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);
         }
-        pdbEntriesToView[count++] = pdbEntry;
-      }
-      launchStructureViewer(ap.getStructureSelectionManager(),
-              pdbEntriesToView, ap, selectedSequences);
-    }
-    else if(currentView == VIEWS_LOCAL_PDB){
-      int[] selectedRows = tbl_local_pdb.getSelectedRows();
-      PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
-      int count = 0;
-      for (int row : selectedRows)
-      {
-        String entryKey = tbl_local_pdb.getValueAt(row, 1).toString()
-                .toLowerCase();
-        pdbEntriesToView[count++] = cachedEntryMap.get(entryKey);
-      }
-      launchStructureViewer(ap.getStructureSelectionManager(),
-              pdbEntriesToView, ap, selectedSequences);
-    }
-    else if (currentView == VIEWS_ENTER_ID)
-    {
-      SequenceI userSelectedSeq = ((AssociateSeqOptions) idInputAssSeqPanel
-              .getCmb_assSeq().getSelectedItem()).getSequence();
-      if (userSelectedSeq != null)
-      {
-        selectedSequence = userSelectedSeq;
-      }
+        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);
+          }
 
-      String pdbIdStr = txt_search.getText();
-      PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
-      if (pdbEntry == null)
-      {
-        pdbEntry = new PDBEntry();
-        pdbEntry.setId(txt_search.getText());
-        pdbEntry.setType(PDBEntry.Type.PDB);
+          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,
+                          DataSourceType.FILE, selectedSequence, true,
+                          Desktop.instance);
+
+          launchStructureViewer(ssm, new PDBEntry[] { fileEntry }, ap,
+                  new SequenceI[]
+                  { selectedSequence });
+        }
+        closeAction(preferredHeight);
+        mainFrame.dispose();
       }
+    }).start();
+  }
 
-      selectedSequence.getDatasetSequence().addPDBId(pdbEntry);
-      PDBEntry[] pdbEntriesToView = new PDBEntry[]
-      { pdbEntry };
-      launchStructureViewer(ap.getStructureSelectionManager(),
-              pdbEntriesToView, ap, new SequenceI[]
-              { selectedSequence });
-    }
-    else if (currentView == VIEWS_FROM_FILE)
+  private PDBEntry getFindEntry(String id, Vector<PDBEntry> pdbEntries)
+  {
+    Objects.requireNonNull(id);
+    Objects.requireNonNull(pdbEntries);
+    PDBEntry foundEntry = null;
+    for (PDBEntry entry : pdbEntries)
     {
-      SequenceI userSelectedSeq = ((AssociateSeqOptions) fileChooserAssSeqPanel
-              .getCmb_assSeq().getSelectedItem()).getSequence();
-      if (userSelectedSeq != null)
+      if (entry.getId().equalsIgnoreCase(id))
       {
-        selectedSequence = userSelectedSeq;
+        return entry;
       }
-      PDBEntry fileEntry = new AssociatePdbFileWithSeq()
-              .associatePdbWithSeq(
-              selectedPdbFileName, jalview.io.AppletFormatAdapter.FILE,
-              selectedSequence, true, Desktop.instance);
-
-      launchStructureViewer(ap.getStructureSelectionManager(),
-              new PDBEntry[]
-              { fileEntry }, ap, new SequenceI[]
-              { selectedSequence });
     }
-    mainFrame.dispose();
+    return foundEntry;
   }
 
   private void launchStructureViewer(StructureSelectionManager ssm,
-          PDBEntry[] pdbEntriesToView, AlignmentPanel alignPanel,
-          SequenceI[] selectedSequences)
+          final PDBEntry[] pdbEntriesToView,
+          final AlignmentPanel alignPanel, SequenceI[] sequences)
   {
-    StructureViewer sViewer = new StructureViewer(ssm);
+    long progressId = sequences.hashCode();
+    setProgressBar(MessageManager
+            .getString("status.launching_3d_structure_viewer"), progressId);
+    final StructureViewer sViewer = new StructureViewer(ssm);
+    setProgressBar(null, progressId);
+
+    if (SiftsSettings.isMapWithSifts())
+    {
+      List<SequenceI> seqsWithoutSourceDBRef = new ArrayList<>();
+      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();
+        setProgressBar(MessageManager.formatMessage(
+                "status.fetching_dbrefs_for_sequences_without_valid_refs",
+                y), progressId);
+        SequenceI[] seqWithoutSrcDBRef = new SequenceI[y];
+        int x = 0;
+        for (SequenceI fSeq : seqsWithoutSourceDBRef)
+        {
+          seqWithoutSrcDBRef[x++] = fSeq;
+        }
+
+        DBRefFetcher dbRefFetcher = new DBRefFetcher(seqWithoutSrcDBRef);
+        dbRefFetcher.fetchDBRefs(true);
+
+        setProgressBar("Fetch complete.", progressId); // todo i18n
+      }
+    }
     if (pdbEntriesToView.length > 1)
     {
-      sViewer.viewStructures(alignPanel, pdbEntriesToView,
-              alignPanel.av.collateForPDB(pdbEntriesToView));
+      setProgressBar(MessageManager.getString(
+              "status.fetching_3d_structures_for_selected_entries"),
+              progressId);
+      sViewer.viewStructures(pdbEntriesToView, sequences, alignPanel);
     }
     else
     {
-      sViewer.viewStructures(pdbEntriesToView[0], selectedSequences, null,
-              alignPanel);
+      setProgressBar(MessageManager.formatMessage(
+              "status.fetching_3d_structures_for",
+              pdbEntriesToView[0].getId()),progressId);
+      sViewer.viewStructures(pdbEntriesToView[0], sequences, alignPanel);
     }
+    setProgressBar(null, progressId);
   }
 
   /**
    * 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)
+          JComboBox<AssociateSeqOptions> cmb_assSeq,
+          JLabel lbl_associateSeq)
   {
     cmb_assSeq.removeAllItems();
-    cmb_assSeq.addItem(new AssociateSeqOptions("-Select Associated Seq-",
-            null));
-    // cmb_assSeq.addItem(new AssociateSeqOptions("Auto Detect", null));
+    cmb_assSeq.addItem(
+            new AssociateSeqOptions("-Select Associated Seq-", null));
     lbl_associateSeq.setVisible(false);
     if (selectedSequences.length > 1)
     {
@@ -773,15 +982,11 @@ public class StructureChooser extends GStructureChooser
 
   public boolean isStructuresDiscovered()
   {
-    return structuresDiscovered;
-  }
-
-  public void setStructuresDiscovered(boolean structuresDiscovered)
-  {
-    this.structuresDiscovered = structuresDiscovered;
+    return discoveredStructuresSet != null
+            && !discoveredStructuresSet.isEmpty();
   }
 
-  public Collection<PDBResponseSummary> getDiscoveredStructuresSet()
+  public Collection<FTSData> getDiscoveredStructuresSet()
   {
     return discoveredStructuresSet;
   }
@@ -789,40 +994,49 @@ public class StructureChooser extends GStructureChooser
   @Override
   protected void txt_search_ActionPerformed()
   {
-    isValidPBDEntry = false;
-    if (txt_search.getText().length() > 0)
+    new Thread()
     {
-      List<PDBDocField> wantedFields = new ArrayList<PDBDocField>();
-      wantedFields.add(PDBDocField.PDB_ID);
-      PDBRestRequest pdbRequest = new PDBRestRequest();
-      pdbRequest.setAllowEmptySeq(false);
-      pdbRequest.setResponseSize(1);
-      pdbRequest.setFieldToSearchBy("(pdb_id:");
-      pdbRequest.setWantedFields(wantedFields);
-      pdbRequest.setSearchTerm(txt_search.getText() + ")");
-      pdbRequest.setAssociatedSequence(selectedSequence.getName());
-      pdbRestCleint = new PDBRestClient();
-      PDBRestResponse resultList;
-      try
-      {
-        resultList = pdbRestCleint.executeRequest(pdbRequest);
-      } catch (Exception e)
-      {
-        JOptionPane.showMessageDialog(this, e.getMessage(),
-                "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
-        return;
-      } finally
+      @Override
+      public void run()
       {
-        System.out.println(">>>>> executing finally block");
+        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<>();
+          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();
       }
-      if (resultList.getSearchSummary() != null
-              && resultList.getSearchSummary().size() > 0)
-      {
-        isValidPBDEntry = true;
-      }
-    }
-    validateSelections();
+    }.start();
   }
 
   @Override
@@ -836,13 +1050,132 @@ public class StructureChooser extends GStructureChooser
         public void run()
         {
           fetchStructuresMetaData();
-          filterResultSet(((FilterOption) cmb_filterOption
-                  .getSelectedItem()).getValue());
+          filterResultSet(
+                  ((FilterOption) cmb_filterOption.getSelectedItem())
+                          .getValue());
         }
       });
       refreshThread.start();
     }
   }
 
+  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<>(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();
+  }
 }