src/jalview/gui/StructureChooser.java

   1 /*
   2
   3  * Jalview - A Sequence Alignment Editor and Viewer (Version 2.8.2)
   4  * Copyright (C) 2014 The Jalview Authors
   5  *
   6  * This file is part of Jalview.
   7  *
   8  * Jalview is free software: you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * as published by the Free Software Foundation, either version 3
  11  * of the License, or (at your option) any later version.
  12  *
  13  * Jalview is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty
  15  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  16  * PURPOSE.  See the GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with Jalview.  If not, see <http://www.gnu.org/licenses/>.
  20  * The Jalview Authors are detailed in the 'AUTHORS' file.
  21  */
  22
  23 package jalview.gui;
  24
  25 import jalview.datamodel.DBRefEntry;
  26 import jalview.datamodel.PDBEntry;
  27 import jalview.datamodel.SequenceI;
  28 import jalview.jbgui.GStructureChooser;
  29 import jalview.jbgui.PDBDocFieldPreferences;
  30 import jalview.structure.StructureSelectionManager;
  31 import jalview.util.MessageManager;
  32 import jalview.ws.dbsources.PDBRestClient;
  33 import jalview.ws.dbsources.PDBRestClient.PDBDocField;
  34 import jalview.ws.uimodel.PDBRestRequest;
  35 import jalview.ws.uimodel.PDBRestResponse;
  36 import jalview.ws.uimodel.PDBRestResponse.PDBResponseSummary;
  37
  38 import java.awt.event.ItemEvent;
  39 import java.util.ArrayList;
  40 import java.util.Collection;
  41 import java.util.HashSet;
  42 import java.util.Hashtable;
  43 import java.util.LinkedHashSet;
  44 import java.util.List;
  45
  46 import javax.swing.JCheckBox;
  47 import javax.swing.JComboBox;
  48 import javax.swing.JLabel;
  49 import javax.swing.JOptionPane;
  50 import javax.swing.table.DefaultTableModel;
  51
  52
  53 /**
  54  * Provides the behaviors for the Structure chooser Panel
  55  *
  56  * @author tcnofoegbu
  57  *
  58  */
  59 @SuppressWarnings("serial")
  60 public class StructureChooser extends GStructureChooser
  61 {
  62   private boolean structuresDiscovered = false;
  63
  64   private SequenceI selectedSequence;
  65
  66   private SequenceI[] selectedSequences;
  67
  68   private IProgressIndicator progressIndicator;
  69
  70   private Collection<PDBResponseSummary> discoveredStructuresSet;
  71
  72   private PDBRestRequest lastPdbRequest;
  73
  74   private PDBRestClient pdbRestCleint;
  75
  76   private String selectedPdbFileName;
  77
  78   private boolean isValidPBDEntry;
  79
  80   private static Hashtable<String, PDBEntry> cachedEntryMap;
  81
  82   public StructureChooser(SequenceI[] selectedSeqs, SequenceI selectedSeq,
  83           AlignmentPanel ap)
  84   {
  85     this.ap = ap;
  86     this.selectedSequence = selectedSeq;
  87     this.selectedSequences = selectedSeqs;
  88     this.progressIndicator = (ap == null) ? null : ap.alignFrame;
  89     init();
  90   }
  91
  92   /**
  93    * Initializes parameters used by the Structure Chooser Panel
  94    */
  95   public void init()
  96   {
  97     Thread discoverPDBStructuresThread = new Thread(new Runnable()
  98     {
  99       @Override
 100       public void run()
 101       {
 102         long startTime = System.currentTimeMillis();
 103         String msg = MessageManager.getString("status.fetching_db_refs");
 104         updateProgressIndicator(msg, startTime);
 105         loadLocalCachedPDBEntries();
 106         fetchStructuresMetaData();
 107         populateFilterComboBox();
 108         updateProgressIndicator(null, startTime);
 109         mainFrame.setVisible(true);
 110         updateCurrentView();
 111       }
 112     });
 113     discoverPDBStructuresThread.start();
 114   }
 115
 116   /**
 117    * Updates the progress indicator with the specified message
 118    *
 119    * @param message
 120    *          displayed message for the operation
 121    * @param id
 122    *          unique handle for this indicator
 123    */
 124   public void updateProgressIndicator(String message, long id)
 125   {
 126     if (progressIndicator != null)
 127     {
 128       progressIndicator.setProgressBar(message, id);
 129     }
 130   }
 131
 132   /**
 133    * Retrieve meta-data for all the structure(s) for a given sequence(s) in a
 134    * selection group
 135    */
 136   public void fetchStructuresMetaData()
 137   {
 138     long startTime = System.currentTimeMillis();
 139     Collection<PDBDocField> wantedFields = PDBDocFieldPreferences
 140             .getStructureSummaryFields();
 141
 142     discoveredStructuresSet = new LinkedHashSet<PDBResponseSummary>();
 143     HashSet<String> errors = new HashSet<String>();
 144     for (SequenceI seq : selectedSequences)
 145     {
 146       PDBRestRequest pdbRequest = new PDBRestRequest();
 147       pdbRequest.setAllowEmptySeq(false);
 148       pdbRequest.setResponseSize(500);
 149       pdbRequest.setFieldToSearchBy("(text:");
 150       pdbRequest.setWantedFields(wantedFields);
 151       pdbRequest.setSearchTerm(buildQuery(seq) + ")");
 152       pdbRequest.setAssociatedSequence(seq.getName());
 153       pdbRestCleint = new PDBRestClient();
 154       PDBRestResponse resultList;
 155       try
 156       {
 157         resultList = pdbRestCleint.executeRequest(pdbRequest);
 158       } catch (Exception e)
 159       {
 160         errors.add(e.getMessage());
 161         continue;
 162       }
 163       lastPdbRequest = pdbRequest;
 164       if (resultList.getSearchSummary() != null
 165               && !resultList.getSearchSummary().isEmpty())
 166       {
 167         discoveredStructuresSet.addAll(resultList.getSearchSummary());
 168         updateSequencePDBEntries(seq, resultList.getSearchSummary());
 169       }
 170     }
 171
 172     int noOfStructuresFound = 0;
 173     String totalTime = (System.currentTimeMillis() - startTime)
 174             + " milli secs";
 175     if (discoveredStructuresSet != null
 176             && !discoveredStructuresSet.isEmpty())
 177     {
 178       tbl_summary.setModel(PDBRestResponse.getTableModel(lastPdbRequest,
 179               discoveredStructuresSet));
 180       structuresDiscovered = true;
 181       noOfStructuresFound = discoveredStructuresSet.size();
 182       mainFrame.setTitle("Structure Chooser - " + noOfStructuresFound
 183               + " Found (" + totalTime + ")");
 184     }
 185     else
 186     {
 187       mainFrame
 188 .setTitle("Structure Chooser - Manual association");
 189       if (errors.size() > 0)
 190       {
 191         StringBuilder errorMsg = new StringBuilder();
 192         // "Operation was unsucessful due to the following: \n");
 193         for (String error : errors)
 194         {
 195           errorMsg.append(error).append("\n");
 196         }
 197         JOptionPane.showMessageDialog(this, errorMsg.toString(),
 198                 "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
 199       }
 200     }
 201   }
 202
 203   public void loadLocalCachedPDBEntries()
 204   {
 205     DefaultTableModel tableModel = new DefaultTableModel();
 206     tableModel.addColumn("Sequence");
 207     tableModel.addColumn("PDB Id");
 208     tableModel.addColumn("Chain");
 209     tableModel.addColumn("Type");
 210     tableModel.addColumn("File");
 211     cachedEntryMap = new Hashtable<String, PDBEntry>();
 212     for (SequenceI seq : selectedSequences)
 213     {
 214       if (seq.getDatasetSequence() != null
 215               && seq.getDatasetSequence().getPDBId() != null)
 216       {
 217         for (PDBEntry pdbEntry : seq.getDatasetSequence().getPDBId())
 218         {
 219
 220           String chain = pdbEntry.getChainCode() == null ? "_" : pdbEntry
 221                   .getChainCode();
 222           String[] pdbEntryRowData = new String[]
 223           { seq.getDisplayId(false), pdbEntry.getId(),
 224  chain,
 225               pdbEntry.getType(),
 226               pdbEntry.getFile() };
 227           if (pdbEntry.getFile() != null)
 228           {
 229             tableModel.addRow(pdbEntryRowData);
 230           }
 231           cachedEntryMap.put(pdbEntry.getId().toLowerCase(),
 232                   pdbEntry);
 233         }
 234       }
 235     }
 236     tbl_local_pdb.setModel(tableModel);
 237   }
 238
 239   /**
 240    * Update the PDBEntry for a given sequence with values retrieved from
 241    * PDBResponseSummary
 242    *
 243    * @param seq
 244    *          the Sequence to update its DBRef entry
 245    * @param responseSummaries
 246    *          a collection of PDBResponseSummary
 247    */
 248   public void updateSequencePDBEntries(SequenceI seq,
 249           Collection<PDBResponseSummary> responseSummaries)
 250   {
 251     for (PDBResponseSummary response : responseSummaries)
 252     {
 253       String pdbIdStr = response.getPdbId();
 254       PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
 255       if (pdbEntry == null)
 256       {
 257         pdbEntry = new PDBEntry();
 258         pdbEntry.setId(pdbIdStr);
 259         pdbEntry.setType(PDBEntry.Type.PDB);
 260       }
 261       seq.getDatasetSequence().addPDBId(pdbEntry);
 262     }
 263   }
 264
 265   /**
 266    * Builds a query string for a given sequences using its DBRef entries
 267    *
 268    * @param seq
 269    *          the sequences to build a query for
 270    * @return the built query string
 271    */
 272
 273   public static String buildQuery(SequenceI seq)
 274   {
 275     HashSet<String> seqRefs = new LinkedHashSet<String>();
 276     String seqName = seq.getName();
 277     String[] names = seqName.toLowerCase().split("\\|");
 278     for (String name : names)
 279     {
 280       // System.out.println("Found name : " + name);
 281       name.trim();
 282       if (isValidSeqName(name))
 283       {
 284         seqRefs.add(name);
 285       }
 286     }
 287
 288     if (seq.getPDBId() != null)
 289     {
 290       for (PDBEntry entry : seq.getPDBId())
 291       {
 292         seqRefs.add(entry.getId());
 293       }
 294     }
 295
 296     if (seq.getDBRef() != null && seq.getDBRef().length != 0)
 297     {
 298       int count = 0;
 299       for (DBRefEntry dbRef : seq.getDBRef())
 300       {
 301         seqRefs.add(getDBRefId(dbRef));
 302         ++count;
 303         if (count > 10)
 304         {
 305           break;
 306         }
 307       }
 308     }
 309
 310     StringBuilder queryBuilder = new StringBuilder();
 311     for (String seqRef : seqRefs)
 312     {
 313       queryBuilder.append("text:").append(seqRef).append(" OR ");
 314     }
 315     int endIndex = queryBuilder.lastIndexOf(" OR ");
 316     String query = queryBuilder.toString().substring(5, endIndex);
 317     return query;
 318   }
 319
 320   /**
 321    * Ensures sequence ref names are not less than 3 characters and does not
 322    * contain a database name
 323    *
 324    * @param seqName
 325    * @return
 326    */
 327   public static boolean isValidSeqName(String seqName)
 328   {
 329     String ignoreList = "pdb,uniprot";
 330     if (seqName.length() < 3)
 331     {
 332       return false;
 333     }
 334     for (String ignoredEntry : ignoreList.split(","))
 335     {
 336       if (seqName.equalsIgnoreCase(ignoredEntry))
 337       {
 338         return false;
 339       }
 340     }
 341     return true;
 342   }
 343
 344   public static String getDBRefId(DBRefEntry dbRef)
 345   {
 346     String ref = dbRef.getAccessionId().replaceAll("GO:", "");
 347     return ref;
 348   }
 349
 350   /**
 351    * Filters a given list of discovered structures based on supplied argument
 352    *
 353    * @param fieldToFilterBy
 354    *          the field to filter by
 355    */
 356   public void filterResultSet(final String fieldToFilterBy)
 357   {
 358     Thread filterThread = new Thread(new Runnable()
 359     {
 360       @Override
 361       public void run()
 362       {
 363         long startTime = System.currentTimeMillis();
 364         lbl_loading.setVisible(true);
 365         Collection<PDBDocField> wantedFields = PDBDocFieldPreferences
 366                 .getStructureSummaryFields();
 367         Collection<PDBResponseSummary> filteredResponse = new HashSet<PDBResponseSummary>();
 368         HashSet<String> errors = new HashSet<String>();
 369         for (SequenceI seq : selectedSequences)
 370         {
 371           PDBRestRequest pdbRequest = new PDBRestRequest();
 372           pdbRequest.setAllowEmptySeq(false);
 373           pdbRequest.setResponseSize(1);
 374           pdbRequest.setFieldToSearchBy("(text:");
 375           pdbRequest.setFieldToSortBy(fieldToFilterBy,
 376                   !chk_invertFilter.isSelected());
 377           pdbRequest.setSearchTerm(buildQuery(seq) + ")");
 378           pdbRequest.setWantedFields(wantedFields);
 379           pdbRequest.setAssociatedSequence(seq.getName());
 380           pdbRestCleint = new PDBRestClient();
 381           PDBRestResponse resultList;
 382           try
 383           {
 384             resultList = pdbRestCleint.executeRequest(pdbRequest);
 385           } catch (Exception e)
 386           {
 387             errors.add(e.getMessage());
 388             continue;
 389           }
 390           lastPdbRequest = pdbRequest;
 391           if (resultList.getSearchSummary() != null
 392                   && !resultList.getSearchSummary().isEmpty())
 393           {
 394             filteredResponse.addAll(resultList.getSearchSummary());
 395           }
 396         }
 397
 398         String totalTime = (System.currentTimeMillis() - startTime)
 399                 + " milli secs";
 400         if (!filteredResponse.isEmpty())
 401         {
 402           final int filterResponseCount = filteredResponse.size();
 403           Collection<PDBResponseSummary> reorderedStructuresSet = new LinkedHashSet<PDBResponseSummary>();
 404           reorderedStructuresSet.addAll(filteredResponse);
 405           reorderedStructuresSet.addAll(discoveredStructuresSet);
 406           tbl_summary.setModel(PDBRestResponse.getTableModel(
 407                   lastPdbRequest, reorderedStructuresSet));
 408
 409           // Update table selection model here
 410           tbl_summary.addRowSelectionInterval(0, filterResponseCount - 1);
 411
 412           mainFrame.setTitle("Structure Chooser - Filter time ("
 413                   + totalTime + ")");
 414         }
 415         else
 416         {
 417           mainFrame.setTitle("Structure Chooser - Filter time ("
 418                   + totalTime + ")");
 419           if (errors.size() > 0)
 420           {
 421             StringBuilder errorMsg = new StringBuilder();
 422             for (String error : errors)
 423             {
 424               errorMsg.append(error).append("\n");
 425             }
 426             JOptionPane.showMessageDialog(null, errorMsg.toString(),
 427                     "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
 428           }
 429         }
 430
 431         lbl_loading.setVisible(false);
 432
 433         validateSelections();
 434       }
 435     });
 436     filterThread.start();
 437   }
 438
 439
 440   /**
 441    * Handles action event for btn_pdbFromFile
 442    */
 443   public void pdbFromFile_actionPerformed()
 444   {
 445     jalview.io.JalviewFileChooser chooser = new jalview.io.JalviewFileChooser(
 446             jalview.bin.Cache.getProperty("LAST_DIRECTORY"));
 447     chooser.setFileView(new jalview.io.JalviewFileView());
 448     chooser.setDialogTitle(MessageManager.formatMessage(
 449             "label.select_pdb_file_for", new String[]
 450             { selectedSequence.getDisplayId(false) }));
 451     chooser.setToolTipText(MessageManager.formatMessage(
 452             "label.load_pdb_file_associate_with_sequence", new String[]
 453             { selectedSequence.getDisplayId(false) }));
 454
 455     int value = chooser.showOpenDialog(null);
 456     if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
 457     {
 458       selectedPdbFileName = chooser.getSelectedFile().getPath();
 459       jalview.bin.Cache.setProperty("LAST_DIRECTORY", selectedPdbFileName);
 460       validateSelections();
 461     }
 462   }
 463
 464   /**
 465    * Populates the filter combo-box options dynamically depending on discovered
 466    * structures
 467    */
 468   protected void populateFilterComboBox()
 469   {
 470     if (isStructuresDiscovered())
 471     {
 472       cmb_filterOption.addItem(new FilterOption("Best Quality",
 473               PDBDocField.OVERALL_QUALITY.getCode(), VIEWS_FILTER));
 474       cmb_filterOption.addItem(new FilterOption("Best UniProt Coverage",
 475               PDBDocField.UNIPROT_COVERAGE.getCode(), VIEWS_FILTER));
 476       cmb_filterOption.addItem(new FilterOption("Highest Resolution",
 477               PDBDocField.RESOLUTION.getCode(), VIEWS_FILTER));
 478       cmb_filterOption.addItem(new FilterOption("Highest Protein Chain",
 479               PDBDocField.PROTEIN_CHAIN_COUNT.getCode(), VIEWS_FILTER));
 480       cmb_filterOption.addItem(new FilterOption("Highest Bound Molecules",
 481               PDBDocField.BOUND_MOLECULE_COUNT.getCode(), VIEWS_FILTER));
 482       cmb_filterOption.addItem(new FilterOption("Highest Polymer Residues",
 483               PDBDocField.POLYMER_RESIDUE_COUNT.getCode(), VIEWS_FILTER));
 484     }
 485     cmb_filterOption.addItem(new FilterOption("Enter PDB Id", "-",
 486             VIEWS_ENTER_ID));
 487     cmb_filterOption.addItem(new FilterOption("From File", "-",
 488             VIEWS_FROM_FILE));
 489     cmb_filterOption.addItem(new FilterOption("Cached PDB Entries", "-",
 490             VIEWS_LOCAL_PDB));
 491   }
 492
 493   /**
 494    * Updates the displayed view based on the selected filter option
 495    */
 496   protected void updateCurrentView()
 497   {
 498     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
 499             .getSelectedItem());
 500     layout_switchableViews.show(pnl_switchableViews,
 501             selectedFilterOpt.getView());
 502     String filterTitle = mainFrame.getTitle();
 503     mainFrame.setTitle(frameTitle);
 504     chk_invertFilter.setVisible(false);
 505     if (selectedFilterOpt.getView() == VIEWS_FILTER)
 506     {
 507       mainFrame.setTitle(filterTitle);
 508       chk_invertFilter.setVisible(true);
 509       filterResultSet(selectedFilterOpt.getValue());
 510     }
 511     else if (selectedFilterOpt.getView() == VIEWS_ENTER_ID
 512             || selectedFilterOpt.getView() == VIEWS_FROM_FILE)
 513     {
 514       mainFrame.setTitle(filterTitle);
 515       idInputAssSeqPanel.loadCmbAssSeq();
 516       fileChooserAssSeqPanel.loadCmbAssSeq();
 517     }
 518     validateSelections();
 519   }
 520
 521   /**
 522    * Validates user selection and activates the view button if all parameters
 523    * are correct
 524    */
 525   public void validateSelections()
 526   {
 527     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
 528             .getSelectedItem());
 529     btn_view.setEnabled(false);
 530     String currentView = selectedFilterOpt.getView();
 531     if (currentView == VIEWS_FILTER)
 532     {
 533       if (tbl_summary.getSelectedRows().length > 0)
 534       {
 535         btn_view.setEnabled(true);
 536       }
 537     }
 538     else if (currentView == VIEWS_LOCAL_PDB)
 539     {
 540       if (tbl_local_pdb.getSelectedRows().length > 0)
 541       {
 542         btn_view.setEnabled(true);
 543       }
 544     }
 545     else if (currentView == VIEWS_ENTER_ID)
 546     {
 547       validateAssociationEnterPdb();
 548     }
 549     else if (currentView == VIEWS_FROM_FILE)
 550     {
 551       validateAssociationFromFile();
 552     }
 553   }
 554
 555   /**
 556    * Validates inputs from the Manual PDB entry panel
 557    */
 558   public void validateAssociationEnterPdb()
 559   {
 560     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) idInputAssSeqPanel
 561             .getCmb_assSeq().getSelectedItem();
 562     lbl_pdbManualFetchStatus.setIcon(errorImage);
 563     lbl_pdbManualFetchStatus.setToolTipText("");
 564     if (txt_search.getText().length() > 0)
 565     {
 566       lbl_pdbManualFetchStatus.setToolTipText(JvSwingUtils.wrapTooltip(
 567               true, "No PDB entry found for \'" + txt_search.getText()
 568                       + "\'"));
 569     }
 570
 571     if (errorWarning.length() > 0)
 572     {
 573       lbl_pdbManualFetchStatus.setIcon(warningImage);
 574       lbl_pdbManualFetchStatus.setToolTipText(JvSwingUtils.wrapTooltip(
 575               true, errorWarning.toString()));
 576     }
 577
 578     if (selectedSequences.length == 1
 579             || !assSeqOpt.getName().equalsIgnoreCase(
 580                     "-Select Associated Seq-"))
 581     {
 582       txt_search.setEnabled(true);
 583       if (isValidPBDEntry)
 584       {
 585         btn_view.setEnabled(true);
 586         lbl_pdbManualFetchStatus.setToolTipText("");
 587         lbl_pdbManualFetchStatus.setIcon(goodImage);
 588       }
 589     }
 590     else
 591     {
 592       txt_search.setEnabled(false);
 593       lbl_pdbManualFetchStatus.setIcon(errorImage);
 594     }
 595   }
 596
 597   /**
 598    * Validates inputs for the manual PDB file selection options
 599    */
 600   public void validateAssociationFromFile()
 601   {
 602     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) fileChooserAssSeqPanel
 603             .getCmb_assSeq().getSelectedItem();
 604     lbl_fromFileStatus.setIcon(errorImage);
 605     if (selectedSequences.length == 1
 606             || (assSeqOpt != null
 607             && !assSeqOpt.getName().equalsIgnoreCase(
 608                     "-Select Associated Seq-")))
 609     {
 610       btn_pdbFromFile.setEnabled(true);
 611       if (selectedPdbFileName != null && selectedPdbFileName.length() > 0)
 612       {
 613         btn_view.setEnabled(true);
 614         lbl_fromFileStatus.setIcon(goodImage);
 615       }
 616     }
 617     else
 618     {
 619       btn_pdbFromFile.setEnabled(false);
 620       lbl_fromFileStatus.setIcon(errorImage);
 621     }
 622   }
 623
 624   @Override
 625   public void cmbAssSeqStateChanged()
 626   {
 627     validateSelections();
 628   }
 629
 630   /**
 631    * Handles the state change event for the 'filter' combo-box and 'invert'
 632    * check-box
 633    */
 634   @Override
 635   protected void stateChanged(ItemEvent e)
 636   {
 637     if (e.getSource() instanceof JCheckBox)
 638     {
 639       updateCurrentView();
 640     }
 641     else
 642     {
 643       if (e.getStateChange() == ItemEvent.SELECTED)
 644       {
 645         updateCurrentView();
 646       }
 647     }
 648
 649   }
 650
 651   /**
 652    * Handles action event for btn_ok
 653    */
 654   @Override
 655   public void ok_ActionPerformed()
 656   {
 657     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
 658             .getSelectedItem());
 659     String currentView = selectedFilterOpt.getView();
 660     if (currentView == VIEWS_FILTER)
 661     {
 662       int pdbIdCol = PDBRestClient.getPDBIdColumIndex(
 663               lastPdbRequest.getWantedFields(), true);
 664       int[] selectedRows = tbl_summary.getSelectedRows();
 665       PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
 666       int count = 0;
 667       for (int summaryRow : selectedRows)
 668       {
 669         String pdbIdStr = tbl_summary.getValueAt(summaryRow, pdbIdCol)
 670                 .toString();
 671
 672         PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
 673         if (pdbEntry == null)
 674         {
 675           pdbEntry = new PDBEntry();
 676           pdbEntry.setId(pdbIdStr);
 677           pdbEntry.setType(PDBEntry.Type.PDB);
 678         }
 679         pdbEntriesToView[count++] = pdbEntry;
 680       }
 681       launchStructureViewer(ap.getStructureSelectionManager(),
 682               pdbEntriesToView, ap, selectedSequences);
 683     }
 684     else if(currentView == VIEWS_LOCAL_PDB){
 685       int[] selectedRows = tbl_local_pdb.getSelectedRows();
 686       PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
 687       int count = 0;
 688       for (int row : selectedRows)
 689       {
 690         String entryKey = tbl_local_pdb.getValueAt(row, 1).toString()
 691                 .toLowerCase();
 692         pdbEntriesToView[count++] = cachedEntryMap.get(entryKey);
 693       }
 694       launchStructureViewer(ap.getStructureSelectionManager(),
 695               pdbEntriesToView, ap, selectedSequences);
 696     }
 697     else if (currentView == VIEWS_ENTER_ID)
 698     {
 699       SequenceI userSelectedSeq = ((AssociateSeqOptions) idInputAssSeqPanel
 700               .getCmb_assSeq().getSelectedItem()).getSequence();
 701       if (userSelectedSeq != null)
 702       {
 703         selectedSequence = userSelectedSeq;
 704       }
 705
 706       String pdbIdStr = txt_search.getText();
 707       PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
 708       if (pdbEntry == null)
 709       {
 710         pdbEntry = new PDBEntry();
 711         pdbEntry.setId(txt_search.getText());
 712         pdbEntry.setType(PDBEntry.Type.PDB);
 713       }
 714
 715       selectedSequence.getDatasetSequence().addPDBId(pdbEntry);
 716       PDBEntry[] pdbEntriesToView = new PDBEntry[]
 717       { pdbEntry };
 718       launchStructureViewer(ap.getStructureSelectionManager(),
 719               pdbEntriesToView, ap, new SequenceI[]
 720               { selectedSequence });
 721     }
 722     else if (currentView == VIEWS_FROM_FILE)
 723     {
 724       SequenceI userSelectedSeq = ((AssociateSeqOptions) fileChooserAssSeqPanel
 725               .getCmb_assSeq().getSelectedItem()).getSequence();
 726       if (userSelectedSeq != null)
 727       {
 728         selectedSequence = userSelectedSeq;
 729       }
 730       PDBEntry fileEntry = new AssociatePdbFileWithSeq()
 731               .associatePdbWithSeq(
 732               selectedPdbFileName, jalview.io.AppletFormatAdapter.FILE,
 733               selectedSequence, true, Desktop.instance);
 734
 735       launchStructureViewer(ap.getStructureSelectionManager(),
 736               new PDBEntry[]
 737               { fileEntry }, ap, new SequenceI[]
 738               { selectedSequence });
 739     }
 740     mainFrame.dispose();
 741   }
 742
 743   private void launchStructureViewer(StructureSelectionManager ssm,
 744           PDBEntry[] pdbEntriesToView, AlignmentPanel alignPanel,
 745           SequenceI[] selectedSequences)
 746   {
 747     StructureViewer sViewer = new StructureViewer(ssm);
 748     if (pdbEntriesToView.length > 1)
 749     {
 750       sViewer.viewStructures(alignPanel, pdbEntriesToView,
 751               alignPanel.av.collateForPDB(pdbEntriesToView));
 752     }
 753     else
 754     {
 755       sViewer.viewStructures(pdbEntriesToView[0], selectedSequences, null,
 756               alignPanel);
 757     }
 758   }
 759
 760   /**
 761    * Populates the combo-box used in associating manually fetched structures to
 762    * a unique sequence when more than one sequence selection is made.
 763    */
 764   public void populateCmbAssociateSeqOptions(
 765           JComboBox<AssociateSeqOptions> cmb_assSeq, JLabel lbl_associateSeq)
 766   {
 767     cmb_assSeq.removeAllItems();
 768     cmb_assSeq.addItem(new AssociateSeqOptions("-Select Associated Seq-",
 769             null));
 770     // cmb_assSeq.addItem(new AssociateSeqOptions("Auto Detect", null));
 771     lbl_associateSeq.setVisible(false);
 772     if (selectedSequences.length > 1)
 773     {
 774       for (SequenceI seq : selectedSequences)
 775       {
 776         cmb_assSeq.addItem(new AssociateSeqOptions(seq));
 777       }
 778     }
 779     else
 780     {
 781       String seqName = selectedSequence.getDisplayId(false);
 782       seqName = seqName.length() <= 40 ? seqName : seqName.substring(0, 39);
 783       lbl_associateSeq.setText(seqName);
 784       lbl_associateSeq.setVisible(true);
 785       cmb_assSeq.setVisible(false);
 786     }
 787   }
 788
 789   public boolean isStructuresDiscovered()
 790   {
 791     return structuresDiscovered;
 792   }
 793
 794   public void setStructuresDiscovered(boolean structuresDiscovered)
 795   {
 796     this.structuresDiscovered = structuresDiscovered;
 797   }
 798
 799   public Collection<PDBResponseSummary> getDiscoveredStructuresSet()
 800   {
 801     return discoveredStructuresSet;
 802   }
 803
 804   @Override
 805   protected void txt_search_ActionPerformed()
 806   {
 807     errorWarning.setLength(0);
 808     isValidPBDEntry = false;
 809     if (txt_search.getText().length() > 0)
 810     {
 811       List<PDBDocField> wantedFields = new ArrayList<PDBDocField>();
 812       wantedFields.add(PDBDocField.PDB_ID);
 813       PDBRestRequest pdbRequest = new PDBRestRequest();
 814       pdbRequest.setAllowEmptySeq(false);
 815       pdbRequest.setResponseSize(1);
 816       pdbRequest.setFieldToSearchBy("(pdb_id:");
 817       pdbRequest.setWantedFields(wantedFields);
 818       pdbRequest.setSearchTerm(txt_search.getText() + ")");
 819       pdbRequest.setAssociatedSequence(selectedSequence.getName());
 820       pdbRestCleint = new PDBRestClient();
 821       PDBRestResponse resultList;
 822       try
 823       {
 824         resultList = pdbRestCleint.executeRequest(pdbRequest);
 825       } catch (Exception e)
 826       {
 827         // JOptionPane.showMessageDialog(this, e.getMessage(),
 828         // "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
 829         errorWarning.append(e.getMessage());
 830         return;
 831       } finally
 832       {
 833         // System.out.println(">>>>> executing finally block");
 834         validateSelections();
 835       }
 836       if (resultList.getSearchSummary() != null
 837               && resultList.getSearchSummary().size() > 0)
 838       {
 839         isValidPBDEntry = true;
 840       }
 841     }
 842     validateSelections();
 843   }
 844
 845   @Override
 846   public void tabRefresh()
 847   {
 848     if (selectedSequences != null)
 849     {
 850       Thread refreshThread = new Thread(new Runnable()
 851       {
 852         @Override
 853         public void run()
 854         {
 855           fetchStructuresMetaData();
 856           filterResultSet(((FilterOption) cmb_filterOption
 857                   .getSelectedItem()).getValue());
 858         }
 859       });
 860       refreshThread.start();
 861     }
 862   }
 863
 864 }