+/*
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3
+ * of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+ * The Jalview Authors are detailed in the 'AUTHORS' file.
+ */
package jalview.ext.ensembl;
-import jalview.ext.ensembl.SeqFetcher.EnsemblSeqType;
+import jalview.datamodel.SequenceFeature;
+import jalview.io.gff.SequenceOntologyFactory;
+import jalview.io.gff.SequenceOntologyI;
+import com.stevesoft.pat.Regex;
+
+/**
+ * A client to fetch CDNA sequence from Ensembl (i.e. that part of the genomic
+ * sequence that is transcribed to RNA, but not necessarily translated to
+ * protein)
+ *
+ * @author gmcarstairs
+ *
+ */
public class EnsemblCdna extends EnsemblSeqProxy
{
+ /*
+ * accepts ENST or ENSTG with 11 digits
+ * or ENSMUST or similar for other species
+ * or CCDSnnnnn.nn with at least 3 digits
+ */
+ private static final Regex ACCESSION_REGEX = new Regex(
+ "(ENS([A-Z]{3}|)[TG][0-9]{11}$)" + "|" + "(CCDS[0-9.]{3,}$)");
+
+ /*
+ * fetch exon features on genomic sequence (to identify the cdna regions)
+ * and cds and variation features (to retain)
+ */
+ private static final EnsemblFeatureType[] FEATURES_TO_FETCH = {
+ EnsemblFeatureType.exon, EnsemblFeatureType.cds,
+ EnsemblFeatureType.variation };
- public EnsemblCdna() throws Exception
+ /**
+ * Default constructor (to use rest.ensembl.org)
+ */
+ public EnsemblCdna()
{
super();
}
+ /**
+ * Constructor given the target domain to fetch data from
+ *
+ * @param d
+ */
+ public EnsemblCdna(String d)
+ {
+ super(d);
+ }
+
@Override
public String getDbName()
{
return EnsemblSeqType.CDNA;
}
+ @Override
+ public Regex getAccessionValidator()
+ {
+ return ACCESSION_REGEX;
+ }
+
+ @Override
+ protected EnsemblFeatureType[] getFeaturesToFetch()
+ {
+ return FEATURES_TO_FETCH;
+ }
+
+ /**
+ * Answers true unless the feature type is 'transcript' (or a sub-type in the
+ * Sequence Ontology).
+ */
+ @Override
+ protected boolean retainFeature(SequenceFeature sf, String accessionId)
+ {
+ if (isTranscript(sf.getType()))
+ {
+ return false;
+ }
+ return featureMayBelong(sf, accessionId);
+ }
+
+ /**
+ * Answers true if the sequence feature type is 'exon' (or a subtype of exon
+ * in the Sequence Ontology), and the Parent of the feature is the transcript
+ * we are retrieving
+ */
+ @Override
+ protected boolean identifiesSequence(SequenceFeature sf, String accId)
+ {
+ if (SequenceOntologyFactory.getInstance().isA(sf.getType(),
+ SequenceOntologyI.EXON))
+ {
+ String parentFeature = (String) sf.getValue(PARENT);
+ if (("transcript:" + accId).equals(parentFeature))
+ {
+ return true;
+ }
+ }
+ return false;
+ }
+
}