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                     "Operation unsucessful due to the following: \n");
 423             for (String error : errors)
 424             {
 425               errorMsg.append(error).append("\n");
 426             }
 427             JOptionPane.showMessageDialog(null, errorMsg.toString(),
 428                     "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
 429           }
 430         }
 431
 432         lbl_loading.setVisible(false);
 433
 434         validateSelections();
 435       }
 436     });
 437     filterThread.start();
 438   }
 439
 440
 441   /**
 442    * Handles action event for btn_pdbFromFile
 443    */
 444   public void pdbFromFile_actionPerformed()
 445   {
 446     jalview.io.JalviewFileChooser chooser = new jalview.io.JalviewFileChooser(
 447             jalview.bin.Cache.getProperty("LAST_DIRECTORY"));
 448     chooser.setFileView(new jalview.io.JalviewFileView());
 449     chooser.setDialogTitle(MessageManager.formatMessage(
 450             "label.select_pdb_file_for", new String[]
 451             { selectedSequence.getDisplayId(false) }));
 452     chooser.setToolTipText(MessageManager.formatMessage(
 453             "label.load_pdb_file_associate_with_sequence", new String[]
 454             { selectedSequence.getDisplayId(false) }));
 455
 456     int value = chooser.showOpenDialog(null);
 457     if (value == jalview.io.JalviewFileChooser.APPROVE_OPTION)
 458     {
 459       selectedPdbFileName = chooser.getSelectedFile().getPath();
 460       jalview.bin.Cache.setProperty("LAST_DIRECTORY", selectedPdbFileName);
 461       validateSelections();
 462     }
 463   }
 464
 465   /**
 466    * Populates the filter combo-box options dynamically depending on discovered
 467    * structures
 468    */
 469   protected void populateFilterComboBox()
 470   {
 471     if (isStructuresDiscovered())
 472     {
 473       cmb_filterOption.addItem(new FilterOption("Best Quality",
 474               PDBDocField.OVERALL_QUALITY.getCode(), VIEWS_FILTER));
 475       cmb_filterOption.addItem(new FilterOption("Best UniProt Coverage",
 476               PDBDocField.UNIPROT_COVERAGE.getCode(), VIEWS_FILTER));
 477       cmb_filterOption.addItem(new FilterOption("Highest Resolution",
 478               PDBDocField.RESOLUTION.getCode(), VIEWS_FILTER));
 479       cmb_filterOption.addItem(new FilterOption("Highest Protein Chain",
 480               PDBDocField.PROTEIN_CHAIN_COUNT.getCode(), VIEWS_FILTER));
 481       cmb_filterOption.addItem(new FilterOption("Highest Bound Molecules",
 482               PDBDocField.BOUND_MOLECULE_COUNT.getCode(), VIEWS_FILTER));
 483       cmb_filterOption.addItem(new FilterOption("Highest Polymer Residues",
 484               PDBDocField.POLYMER_RESIDUE_COUNT.getCode(), VIEWS_FILTER));
 485     }
 486     cmb_filterOption.addItem(new FilterOption("Enter PDB Id", "-",
 487             VIEWS_ENTER_ID));
 488     cmb_filterOption.addItem(new FilterOption("From File", "-",
 489             VIEWS_FROM_FILE));
 490     cmb_filterOption.addItem(new FilterOption("Cached PDB Entries", "-",
 491             VIEWS_LOCAL_PDB));
 492   }
 493
 494   /**
 495    * Updates the displayed view based on the selected filter option
 496    */
 497   protected void updateCurrentView()
 498   {
 499     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
 500             .getSelectedItem());
 501     layout_switchableViews.show(pnl_switchableViews,
 502             selectedFilterOpt.getView());
 503     String filterTitle = mainFrame.getTitle();
 504     mainFrame.setTitle(frameTitle);
 505     chk_invertFilter.setVisible(false);
 506     if (selectedFilterOpt.getView() == VIEWS_FILTER)
 507     {
 508       mainFrame.setTitle(filterTitle);
 509       chk_invertFilter.setVisible(true);
 510       filterResultSet(selectedFilterOpt.getValue());
 511     }
 512     else if (selectedFilterOpt.getView() == VIEWS_ENTER_ID
 513             || selectedFilterOpt.getView() == VIEWS_FROM_FILE)
 514     {
 515       mainFrame.setTitle(filterTitle);
 516       idInputAssSeqPanel.loadCmbAssSeq();
 517       fileChooserAssSeqPanel.loadCmbAssSeq();
 518     }
 519     validateSelections();
 520   }
 521
 522   /**
 523    * Validates user selection and activates the view button if all parameters
 524    * are correct
 525    */
 526   public void validateSelections()
 527   {
 528     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
 529             .getSelectedItem());
 530     btn_view.setEnabled(false);
 531     String currentView = selectedFilterOpt.getView();
 532     if (currentView == VIEWS_FILTER)
 533     {
 534       if (tbl_summary.getSelectedRows().length > 0)
 535       {
 536         btn_view.setEnabled(true);
 537       }
 538     }
 539     else if (currentView == VIEWS_LOCAL_PDB)
 540     {
 541       if (tbl_local_pdb.getSelectedRows().length > 0)
 542       {
 543         btn_view.setEnabled(true);
 544       }
 545     }
 546     else if (currentView == VIEWS_ENTER_ID)
 547     {
 548       validateAssociationEnterPdb();
 549     }
 550     else if (currentView == VIEWS_FROM_FILE)
 551     {
 552       validateAssociationFromFile();
 553     }
 554   }
 555
 556   /**
 557    * Validates inputs from the Manual PDB entry panel
 558    */
 559   public void validateAssociationEnterPdb()
 560   {
 561     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) idInputAssSeqPanel
 562             .getCmb_assSeq().getSelectedItem();
 563     lbl_pdbManualFetchStatus.setIcon(errorImage);
 564     if (selectedSequences.length == 1
 565             || !assSeqOpt.getName().equalsIgnoreCase(
 566                     "-Select Associated Seq-"))
 567     {
 568       txt_search.setEnabled(true);
 569       if (isValidPBDEntry)
 570       {
 571         btn_view.setEnabled(true);
 572         lbl_pdbManualFetchStatus.setIcon(goodImage);
 573       }
 574     }
 575     else
 576     {
 577       txt_search.setEnabled(false);
 578       lbl_pdbManualFetchStatus.setIcon(errorImage);
 579     }
 580   }
 581
 582   /**
 583    * Validates inputs for the manual PDB file selection options
 584    */
 585   public void validateAssociationFromFile()
 586   {
 587     AssociateSeqOptions assSeqOpt = (AssociateSeqOptions) fileChooserAssSeqPanel
 588             .getCmb_assSeq().getSelectedItem();
 589     lbl_fromFileStatus.setIcon(errorImage);
 590     if (selectedSequences.length == 1
 591             || (assSeqOpt != null
 592             && !assSeqOpt.getName().equalsIgnoreCase(
 593                     "-Select Associated Seq-")))
 594     {
 595       btn_pdbFromFile.setEnabled(true);
 596       if (selectedPdbFileName != null && selectedPdbFileName.length() > 0)
 597       {
 598         btn_view.setEnabled(true);
 599         lbl_fromFileStatus.setIcon(goodImage);
 600       }
 601     }
 602     else
 603     {
 604       btn_pdbFromFile.setEnabled(false);
 605       lbl_fromFileStatus.setIcon(errorImage);
 606     }
 607   }
 608
 609   @Override
 610   public void cmbAssSeqStateChanged()
 611   {
 612     validateSelections();
 613   }
 614
 615   /**
 616    * Handles the state change event for the 'filter' combo-box and 'invert'
 617    * check-box
 618    */
 619   @Override
 620   protected void stateChanged(ItemEvent e)
 621   {
 622     if (e.getSource() instanceof JCheckBox)
 623     {
 624       updateCurrentView();
 625     }
 626     else
 627     {
 628       if (e.getStateChange() == ItemEvent.SELECTED)
 629       {
 630         updateCurrentView();
 631       }
 632     }
 633
 634   }
 635
 636   /**
 637    * Handles action event for btn_ok
 638    */
 639   @Override
 640   public void ok_ActionPerformed()
 641   {
 642     FilterOption selectedFilterOpt = ((FilterOption) cmb_filterOption
 643             .getSelectedItem());
 644     String currentView = selectedFilterOpt.getView();
 645     if (currentView == VIEWS_FILTER)
 646     {
 647       int pdbIdCol = PDBRestClient.getPDBIdColumIndex(
 648               lastPdbRequest.getWantedFields(), true);
 649       int[] selectedRows = tbl_summary.getSelectedRows();
 650       PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
 651       int count = 0;
 652       for (int summaryRow : selectedRows)
 653       {
 654         String pdbIdStr = tbl_summary.getValueAt(summaryRow, pdbIdCol)
 655                 .toString();
 656
 657         PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
 658         if (pdbEntry == null)
 659         {
 660           pdbEntry = new PDBEntry();
 661           pdbEntry.setId(pdbIdStr);
 662           pdbEntry.setType(PDBEntry.Type.PDB);
 663         }
 664         pdbEntriesToView[count++] = pdbEntry;
 665       }
 666       launchStructureViewer(ap.getStructureSelectionManager(),
 667               pdbEntriesToView, ap, selectedSequences);
 668     }
 669     else if(currentView == VIEWS_LOCAL_PDB){
 670       int[] selectedRows = tbl_local_pdb.getSelectedRows();
 671       PDBEntry[] pdbEntriesToView = new PDBEntry[selectedRows.length];
 672       int count = 0;
 673       for (int row : selectedRows)
 674       {
 675         String entryKey = tbl_local_pdb.getValueAt(row, 1).toString()
 676                 .toLowerCase();
 677         pdbEntriesToView[count++] = cachedEntryMap.get(entryKey);
 678       }
 679       launchStructureViewer(ap.getStructureSelectionManager(),
 680               pdbEntriesToView, ap, selectedSequences);
 681     }
 682     else if (currentView == VIEWS_ENTER_ID)
 683     {
 684       SequenceI userSelectedSeq = ((AssociateSeqOptions) idInputAssSeqPanel
 685               .getCmb_assSeq().getSelectedItem()).getSequence();
 686       if (userSelectedSeq != null)
 687       {
 688         selectedSequence = userSelectedSeq;
 689       }
 690
 691       String pdbIdStr = txt_search.getText();
 692       PDBEntry pdbEntry = cachedEntryMap.get(pdbIdStr.toLowerCase());
 693       if (pdbEntry == null)
 694       {
 695         pdbEntry = new PDBEntry();
 696         pdbEntry.setId(txt_search.getText());
 697         pdbEntry.setType(PDBEntry.Type.PDB);
 698       }
 699
 700       selectedSequence.getDatasetSequence().addPDBId(pdbEntry);
 701       PDBEntry[] pdbEntriesToView = new PDBEntry[]
 702       { pdbEntry };
 703       launchStructureViewer(ap.getStructureSelectionManager(),
 704               pdbEntriesToView, ap, new SequenceI[]
 705               { selectedSequence });
 706     }
 707     else if (currentView == VIEWS_FROM_FILE)
 708     {
 709       SequenceI userSelectedSeq = ((AssociateSeqOptions) fileChooserAssSeqPanel
 710               .getCmb_assSeq().getSelectedItem()).getSequence();
 711       if (userSelectedSeq != null)
 712       {
 713         selectedSequence = userSelectedSeq;
 714       }
 715       PDBEntry fileEntry = new AssociatePdbFileWithSeq()
 716               .associatePdbWithSeq(
 717               selectedPdbFileName, jalview.io.AppletFormatAdapter.FILE,
 718               selectedSequence, true, Desktop.instance);
 719
 720       launchStructureViewer(ap.getStructureSelectionManager(),
 721               new PDBEntry[]
 722               { fileEntry }, ap, new SequenceI[]
 723               { selectedSequence });
 724     }
 725     mainFrame.dispose();
 726   }
 727
 728   private void launchStructureViewer(StructureSelectionManager ssm,
 729           PDBEntry[] pdbEntriesToView, AlignmentPanel alignPanel,
 730           SequenceI[] selectedSequences)
 731   {
 732     StructureViewer sViewer = new StructureViewer(ssm);
 733     if (pdbEntriesToView.length > 1)
 734     {
 735       sViewer.viewStructures(alignPanel, pdbEntriesToView,
 736               alignPanel.av.collateForPDB(pdbEntriesToView));
 737     }
 738     else
 739     {
 740       sViewer.viewStructures(pdbEntriesToView[0], selectedSequences, null,
 741               alignPanel);
 742     }
 743   }
 744
 745   /**
 746    * Populates the combo-box used in associating manually fetched structures to
 747    * a unique sequence when more than one sequence selection is made.
 748    */
 749   public void populateCmbAssociateSeqOptions(
 750           JComboBox<AssociateSeqOptions> cmb_assSeq, JLabel lbl_associateSeq)
 751   {
 752     cmb_assSeq.removeAllItems();
 753     cmb_assSeq.addItem(new AssociateSeqOptions("-Select Associated Seq-",
 754             null));
 755     // cmb_assSeq.addItem(new AssociateSeqOptions("Auto Detect", null));
 756     lbl_associateSeq.setVisible(false);
 757     if (selectedSequences.length > 1)
 758     {
 759       for (SequenceI seq : selectedSequences)
 760       {
 761         cmb_assSeq.addItem(new AssociateSeqOptions(seq));
 762       }
 763     }
 764     else
 765     {
 766       String seqName = selectedSequence.getDisplayId(false);
 767       seqName = seqName.length() <= 40 ? seqName : seqName.substring(0, 39);
 768       lbl_associateSeq.setText(seqName);
 769       lbl_associateSeq.setVisible(true);
 770       cmb_assSeq.setVisible(false);
 771     }
 772   }
 773
 774   public boolean isStructuresDiscovered()
 775   {
 776     return structuresDiscovered;
 777   }
 778
 779   public void setStructuresDiscovered(boolean structuresDiscovered)
 780   {
 781     this.structuresDiscovered = structuresDiscovered;
 782   }
 783
 784   public Collection<PDBResponseSummary> getDiscoveredStructuresSet()
 785   {
 786     return discoveredStructuresSet;
 787   }
 788
 789   @Override
 790   protected void txt_search_ActionPerformed()
 791   {
 792     isValidPBDEntry = false;
 793     if (txt_search.getText().length() > 0)
 794     {
 795       List<PDBDocField> wantedFields = new ArrayList<PDBDocField>();
 796       wantedFields.add(PDBDocField.PDB_ID);
 797       PDBRestRequest pdbRequest = new PDBRestRequest();
 798       pdbRequest.setAllowEmptySeq(false);
 799       pdbRequest.setResponseSize(1);
 800       pdbRequest.setFieldToSearchBy("(pdb_id:");
 801       pdbRequest.setWantedFields(wantedFields);
 802       pdbRequest.setSearchTerm(txt_search.getText() + ")");
 803       pdbRequest.setAssociatedSequence(selectedSequence.getName());
 804       pdbRestCleint = new PDBRestClient();
 805       PDBRestResponse resultList;
 806       try
 807       {
 808         resultList = pdbRestCleint.executeRequest(pdbRequest);
 809       } catch (Exception e)
 810       {
 811         JOptionPane.showMessageDialog(this, e.getMessage(),
 812                 "PDB Web-service Error", JOptionPane.ERROR_MESSAGE);
 813         return;
 814       } finally
 815       {
 816         System.out.println(">>>>> executing finally block");
 817         validateSelections();
 818       }
 819       if (resultList.getSearchSummary() != null
 820               && resultList.getSearchSummary().size() > 0)
 821       {
 822         isValidPBDEntry = true;
 823       }
 824     }
 825     validateSelections();
 826   }
 827
 828   @Override
 829   public void tabRefresh()
 830   {
 831     if (selectedSequences != null)
 832     {
 833       Thread refreshThread = new Thread(new Runnable()
 834       {
 835         @Override
 836         public void run()
 837         {
 838           fetchStructuresMetaData();
 839           filterResultSet(((FilterOption) cmb_filterOption
 840                   .getSelectedItem()).getValue());
 841         }
 842       });
 843       refreshThread.start();
 844     }
 845   }
 846
 847
 848 }