2 * Jalview - A Sequence Alignment Editor and Viewer (Development Version 2.4.1)
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3 * Copyright (C) 2009 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
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5 * This program is free software; you can redistribute it and/or
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6 * modify it under the terms of the GNU General Public License
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7 * as published by the Free Software Foundation; either version 2
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8 * of the License, or (at your option) any later version.
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10 * This program is distributed in the hope that it will be useful,
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11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 * GNU General Public License for more details.
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15 * You should have received a copy of the GNU General Public License
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16 * along with this program; if not, write to the Free Software
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17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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19 package jalview.ws.seqfetcher;
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21 import jalview.datamodel.AlignmentI;
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22 import jalview.datamodel.SequenceI;
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24 import java.util.Enumeration;
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25 import java.util.Hashtable;
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26 import java.util.Vector;
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28 public class ASequenceFetcher
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32 * set of databases we can retrieve entries from
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34 protected Hashtable FETCHABLEDBS;
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36 public ASequenceFetcher()
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42 * get list of supported Databases
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44 * @return database source string for each database - only the latest version
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45 * of a source db is bound to each source.
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47 public String[] getSupportedDb()
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49 if (FETCHABLEDBS == null)
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51 String[] sf = new String[FETCHABLEDBS.size()];
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52 Enumeration e = FETCHABLEDBS.keys();
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54 while (e.hasMoreElements())
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56 sf[i++] = (String) e.nextElement();
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62 public boolean isFetchable(String source)
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64 Enumeration e = FETCHABLEDBS.keys();
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65 while (e.hasMoreElements())
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67 String db = (String) e.nextElement();
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68 if (source.compareToIgnoreCase(db) == 0)
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71 jalview.bin.Cache.log.warn("isFetchable doesn't know about '" + source
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76 public SequenceI[] getSequences(jalview.datamodel.DBRefEntry[] refs)
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78 SequenceI[] ret = null;
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79 Vector rseqs = new Vector();
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80 Hashtable queries = new Hashtable();
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81 for (int r = 0; r < refs.length; r++)
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83 if (!queries.containsKey(refs[r].getSource()))
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85 queries.put(refs[r].getSource(), new Vector());
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87 Vector qset = (Vector) queries.get(refs[r].getSource());
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88 if (!qset.contains(refs[r].getAccessionId()))
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90 qset.addElement(refs[r].getAccessionId());
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93 Enumeration e = queries.keys();
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94 while (e.hasMoreElements())
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96 Vector query = null;
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100 db = (String) e.nextElement();
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101 query = (Vector) queries.get(db);
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102 if (!isFetchable(db))
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103 throw new Exception(
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104 "Don't know how to fetch from this database :" + db);
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105 DbSourceProxy fetcher = getSourceProxy(db);
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106 boolean doMultiple = fetcher.getAccessionSeparator() != null; // No
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111 Enumeration qs = query.elements();
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112 while (qs.hasMoreElements())
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114 StringBuffer qsb = new StringBuffer();
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117 qsb.append((String) qs.nextElement());
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118 if (qs.hasMoreElements() && doMultiple) // and not reached limit for
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119 // multiple queries at one
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120 // time for this source
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122 qsb.append(fetcher.getAccessionSeparator());
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124 } while (doMultiple && qs.hasMoreElements());
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126 AlignmentI seqset = null;
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129 // create a fetcher and go to it
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130 seqset = fetcher.getSequenceRecords(qsb.toString());
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131 } catch (Exception ex)
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133 System.err.println("Failed to retrieve the following from "
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135 System.err.println(qsb);
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136 ex.printStackTrace(System.err);
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138 // TODO: Merge alignment together - perhaps
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139 if (seqset != null)
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141 SequenceI seqs[] = seqset.getSequencesArray();
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144 for (int is = 0; is < seqs.length; is++)
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146 rseqs.addElement(seqs[is]);
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152 if (fetcher.getRawRecords() != null)
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154 System.out.println("# Retrieved from " + db + ":"
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156 StringBuffer rrb = fetcher.getRawRecords();
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158 * for (int rr = 0; rr<rrb.length; rr++) {
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161 // if (rr<qs.length)
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163 hdr = "# " + db + ":" + qsb.toString();
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165 * } else { hdr = "# part "+rr; }
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167 System.out.println(hdr);
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169 System.out.println(rrb);
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170 System.out.println("# end of " + hdr);
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175 } catch (Exception ex)
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178 .println("Failed to retrieve the following references from "
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180 Enumeration qv = query.elements();
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182 while (qv.hasMoreElements())
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184 System.err.print(" " + qv.nextElement() + ";");
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187 System.err.println();
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191 System.err.println();
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192 ex.printStackTrace();
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195 if (rseqs.size() > 0)
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197 ret = new SequenceI[rseqs.size()];
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198 Enumeration sqs = rseqs.elements();
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200 while (sqs.hasMoreElements())
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202 SequenceI s = (SequenceI) sqs.nextElement();
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211 * Retrieve an instance of the proxy for the given source
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214 * database source string TODO: add version string/wildcard for
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215 * retrieval of specific DB source/version combinations.
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216 * @return an instance of DbSourceProxy for that db.
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218 public DbSourceProxy getSourceProxy(String db)
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220 DbSourceProxy dbs = (DbSourceProxy) FETCHABLEDBS.get(db);
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225 * constructs and instance of the proxy and registers it as a valid
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228 * @param dbSourceProxy
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229 * reference for class implementing
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230 * jalview.ws.seqfetcher.DbSourceProxy
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231 * @throws java.lang.IllegalArgumentException
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232 * if class does not implement
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233 * jalview.ws.seqfetcher.DbSourceProxy
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235 protected void addDBRefSourceImpl(Class dbSourceProxy)
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236 throws java.lang.IllegalArgumentException
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238 DbSourceProxy proxy = null;
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241 Object proxyObj = dbSourceProxy.getConstructor(null)
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242 .newInstance(null);
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243 if (!DbSourceProxy.class.isInstance(proxyObj))
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245 throw new IllegalArgumentException(
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246 dbSourceProxy.toString()
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247 + " does not implement the jalview.ws.seqfetcher.DbSourceProxy");
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249 proxy = (DbSourceProxy) proxyObj;
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250 } catch (IllegalArgumentException e)
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253 } catch (Exception e)
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255 // Serious problems if this happens.
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256 throw new Error("DBRefSource Implementation Exception", e);
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258 addDbRefSourceImpl(proxy);
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262 * add the properly initialised DbSourceProxy object 'proxy' to the list of
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263 * sequence fetchers
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267 protected void addDbRefSourceImpl(DbSourceProxy proxy)
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271 if (FETCHABLEDBS == null)
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273 FETCHABLEDBS = new Hashtable();
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275 FETCHABLEDBS.put(proxy.getDbSource(), proxy);
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280 * test if the database handler for dbName contains the given dbProperty
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283 * @param dbProperty
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284 * @return true if proxy has the given property
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286 public boolean hasDbSourceProperty(String dbName, String dbProperty)
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288 // TODO: decide if invalidDbName exception is thrown here.
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289 DbSourceProxy proxy = getSourceProxy(dbName);
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292 if (proxy.getDbSourceProperties() != null)
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294 return proxy.getDbSourceProperties().containsKey(dbProperty);
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301 * select sources which are implemented by instances of the given class
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302 * @param class that implements DbSourceProxy
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303 * @return null or vector of source names for fetchers
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305 public String[] getDbInstances(Class class1)
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307 if (!jalview.ws.seqfetcher.DbSourceProxy.class.isAssignableFrom(class1))
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309 throw new Error("Implmentation Error - getDbInstances must be given a class that implements jalview.ws.seqfetcher.DbSourceProxy (was given '"+class1+"')");
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311 if (FETCHABLEDBS==null)
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315 String[] sources = null;
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316 Vector src = new Vector();
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317 Enumeration dbs = FETCHABLEDBS.keys();
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318 while (dbs.hasMoreElements())
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320 String dbn = (String) dbs.nextElement();
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321 DbSourceProxy dbp = (DbSourceProxy) FETCHABLEDBS.get(dbn);
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322 if (class1.isAssignableFrom(dbp.getClass()))
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324 src.addElement(dbn);
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329 src.copyInto(sources = new String[src.size()]);
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