X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fext%2Fensembl%2FEnsemblSeqProxy.java;h=f96f1d5a4f36ad9c42349782b9031477365678c6;hb=f59dd9efbb3dfc313ab0b0507832e21cd0076fe1;hp=b2ebb1ac5dc4db1c833c16def46b67431cc3de16;hpb=2779b461347e684414f9e98e607e138b1e43db84;p=jalview.git diff --git a/src/jalview/ext/ensembl/EnsemblSeqProxy.java b/src/jalview/ext/ensembl/EnsemblSeqProxy.java index b2ebb1a..f96f1d5 100644 --- a/src/jalview/ext/ensembl/EnsemblSeqProxy.java +++ b/src/jalview/ext/ensembl/EnsemblSeqProxy.java @@ -28,12 +28,12 @@ import jalview.datamodel.AlignmentI; import jalview.datamodel.DBRefEntry; import jalview.datamodel.DBRefSource; import jalview.datamodel.Mapping; +import jalview.datamodel.Sequence; import jalview.datamodel.SequenceFeature; import jalview.datamodel.SequenceI; import jalview.datamodel.features.SequenceFeatures; import jalview.exceptions.JalviewException; -import jalview.io.FastaFile; -import jalview.io.FileParse; +import jalview.io.gff.Gff3Helper; import jalview.io.gff.SequenceOntologyFactory; import jalview.io.gff.SequenceOntologyI; import jalview.util.Comparison; @@ -41,6 +41,7 @@ import jalview.util.DBRefUtils; import jalview.util.IntRangeComparator; import jalview.util.MapList; +import java.io.BufferedReader; import java.io.IOException; import java.net.MalformedURLException; import java.net.URL; @@ -49,6 +50,10 @@ import java.util.Arrays; import java.util.Collections; import java.util.List; +import org.json.simple.JSONObject; +import org.json.simple.parser.JSONParser; +import org.json.simple.parser.ParseException; + /** * Base class for Ensembl sequence fetchers * @@ -57,8 +62,6 @@ import java.util.List; */ public abstract class EnsemblSeqProxy extends EnsemblRestClient { - private static final String ALLELES = "alleles"; - protected static final String NAME = "Name"; protected static final String DESCRIPTION = "description"; @@ -386,50 +389,44 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient inProgress = false; throw new JalviewException("ENSEMBL Rest API not available."); } - FileParse fp = getSequenceReader(ids); - if (fp == null) + BufferedReader br = getSequenceReader(ids); + if (br == null) { return alignment; } - FastaFile fr = new FastaFile(fp); - if (fr.hasWarningMessage()) + List seqs = parseSequenceJson(br); + + if (seqs.isEmpty()) { - System.out.println( - String.format("Warning when retrieving %d ids %s\n%s", - ids.size(), ids.toString(), fr.getWarningMessage())); + throw new IOException("No data returned for " + ids); } - else if (fr.getSeqs().size() != ids.size()) + + if (seqs.size() != ids.size()) { System.out.println(String.format( "Only retrieved %d sequences for %d query strings", - fr.getSeqs().size(), ids.size())); - } - - if (fr.getSeqs().size() == 1 && fr.getSeqs().get(0).getLength() == 0) - { - /* - * POST request has returned an empty FASTA file e.g. for invalid id - */ - throw new IOException("No data returned for " + ids); + seqs.size(), ids.size())); } - if (fr.getSeqs().size() > 0) + if (!seqs.isEmpty()) { - AlignmentI seqal = new Alignment(fr.getSeqsAsArray()); - for (SequenceI sq : seqal.getSequences()) + AlignmentI seqal = new Alignment( + seqs.toArray(new SequenceI[seqs.size()])); + for (SequenceI seq : seqs) { - if (sq.getDescription() == null) + if (seq.getDescription() == null) { - sq.setDescription(getDbName()); + seq.setDescription(getDbName()); } - String name = sq.getName(); + String name = seq.getName(); if (ids.contains(name) || ids.contains(name.replace("ENSP", "ENST"))) { - DBRefEntry dbref = DBRefUtils.parseToDbRef(sq, getDbSource(), + // TODO JAL-3077 use true accession version in dbref + DBRefEntry dbref = DBRefUtils.parseToDbRef(seq, getDbSource(), getEnsemblDataVersion(), name); - sq.addDBRef(dbref); + seq.addDBRef(dbref); } } if (alignment == null) @@ -445,6 +442,49 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient } /** + * Parses a JSON response into a list of sequences + * + * @param br + * @return + * @see http://rest.ensembl.org/documentation/info/sequence_id + */ + protected List parseSequenceJson(BufferedReader br) + { + JSONParser jp = new JSONParser(); + List result = new ArrayList<>(); + try + { + /* + * for now, assumes only one sequence returned; refactor if needed + * in future to handle a JSONArray with more than one + */ + final JSONObject val = (JSONObject) jp.parse(br); + Object s = val.get("desc"); + String desc = s == null ? null : s.toString(); + s = val.get("id"); + String id = s == null ? null : s.toString(); + s = val.get("seq"); + String seq = s == null ? null : s.toString(); + Sequence sequence = new Sequence(id, seq); + if (desc != null) + { + sequence.setDescription(desc); + } + // todo JAL-3077 make a DBRefEntry with true accession version + // s = val.get("version"); + // String version = s == null ? "0" : s.toString(); + // DBRefEntry dbref = new DBRefEntry(getDbSource(), version, id); + // sequence.addDBRef(dbref); + result.add(sequence); + } catch (ParseException | IOException e) + { + System.err.println("Error processing JSON response: " + e.toString()); + // ignore + } + return result; + } + + /** * Returns the URL for the REST call * * @return @@ -465,7 +505,8 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient } // @see https://github.com/Ensembl/ensembl-rest/wiki/Output-formats urlstring.append("?type=").append(getSourceEnsemblType().getType()); - urlstring.append(("&Accept=text/x-fasta")); + urlstring.append(("&Accept=application/json")); + urlstring.append(("&Content-Type=application/json")); String objectType = getObjectType(); if (objectType != null) @@ -505,18 +546,6 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient return false; } - @Override - protected String getRequestMimeType(boolean multipleIds) - { - return multipleIds ? "application/json" : "text/x-fasta"; - } - - @Override - protected String getResponseMimeType() - { - return "text/x-fasta"; - } - /** * * @return the configured sequence return type for this source @@ -657,6 +686,20 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient String accId); /** + * Answers a list of sequence features that mark positions of the genomic + * sequence feature which are within the sequence being retrieved. For + * example, an 'exon' feature whose parent is the target transcript marks the + * cdna positions of the transcript. For a gene sequence, this is trivially + * just the 'gene' feature with matching gene id. + * + * @param seq + * @param accId + * @return + */ + protected abstract List getIdentifyingFeatures( + SequenceI seq, String accId); + + /** * Transfers the sequence feature to the target sequence, locating its start * and end range based on the mapping. Features which do not overlap the * target sequence are ignored. @@ -708,7 +751,7 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient */ static void reverseComplementAlleles(SequenceFeature sf) { - final String alleles = (String) sf.getValue(ALLELES); + final String alleles = (String) sf.getValue(Gff3Helper.ALLELES); if (alleles == null) { return; @@ -719,7 +762,7 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient reverseComplementAllele(complement, allele); } String comp = complement.toString(); - sf.setValue(ALLELES, comp); + sf.setValue(Gff3Helper.ALLELES, comp); sf.setDescription(comp); /* @@ -729,7 +772,8 @@ public abstract class EnsemblSeqProxy extends EnsemblRestClient String atts = sf.getAttributes(); if (atts != null) { - atts = atts.replace(ALLELES + "=" + alleles, ALLELES + "=" + comp); + atts = atts.replace(Gff3Helper.ALLELES + "=" + alleles, + Gff3Helper.ALLELES + "=" + comp); sf.setAttributes(atts); } }