1 package jalview.analysis.scoremodels;
3 import jalview.api.analysis.ScoreModelI;
4 import jalview.io.DataSourceType;
5 import jalview.io.FileParse;
6 import jalview.io.ScoreMatrixFile;
8 import java.io.IOException;
9 import java.util.LinkedHashMap;
13 * A class that can register and serve instances of ScoreModelI
15 public class ScoreModels
17 private final ScoreMatrix BLOSUM62;
19 private final ScoreMatrix PAM250;
21 private final ScoreMatrix DNA;
23 private static ScoreModels instance = new ScoreModels();
25 private Map<String, ScoreModelI> models;
27 public static ScoreModels getInstance()
33 * Private constructor to enforce use of singleton. Registers Jalview's
34 * "built-in" score models:
38 * <li>SeqSpace (identity matrix)</li>
40 * <li>Sequence Feature Similarity</li>
41 * <li>Percentage Identity</li>
47 * using LinkedHashMap keeps models ordered as added
49 models = new LinkedHashMap<String, ScoreModelI>();
50 BLOSUM62 = loadScoreMatrix("scoreModel/blosum62.scm");
51 PAM250 = loadScoreMatrix("scoreModel/pam250.scm");
52 registerScoreModel(new PIDModel());
53 DNA = loadScoreMatrix("scoreModel/dna.scm");
54 registerScoreModel(new FeatureDistanceModel());
55 // registerScoreModel(new PIDDistanceModel()); // superseded by PIDModel
59 * Tries to load a score matrix from the given resource file, and if
60 * successful, registers it.
65 ScoreMatrix loadScoreMatrix(String resourcePath)
70 * delegate parsing to ScoreMatrixFile
72 FileParse fp = new FileParse(resourcePath, DataSourceType.CLASSLOADER);
73 ScoreMatrix sm = new ScoreMatrixFile(fp).parseMatrix();
74 registerScoreModel(sm);
76 } catch (IOException e)
78 System.err.println("Error reading " + resourcePath + ": "
85 * Answers an iterable set of the registered score models. Currently these are
86 * returned in the order in which they were registered.
90 public Iterable<ScoreModelI> getModels()
92 return models.values();
95 public ScoreModelI forName(String s)
100 public void registerScoreModel(ScoreModelI sm)
102 ScoreModelI sm2 = models.get(sm.getName());
105 System.err.println("Warning: replacing score model " + sm2.getName());
107 models.put(sm.getName(), sm);
111 * Returns the default peptide or nucleotide score model, currently BLOSUM62
117 public ScoreMatrix getDefaultModel(boolean forPeptide)
119 return forPeptide ? BLOSUM62 : DNA;
122 public ScoreMatrix getBlosum62()
127 public ScoreMatrix getPam250()