2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 package jalview.datamodel;
23 import java.util.ArrayList;
24 import java.util.Arrays;
25 import java.util.List;
28 * Holds a list of search result matches, where each match is a contiguous
29 * stretch of a single sequence.
34 public class SearchResults
37 private List<Match> matches = new ArrayList<Match>();
40 * One match consists of a sequence reference, start and end positions.
41 * Discontiguous ranges in a sequence require two or more Match objects.
48 * Start position of match in sequence (base 1)
53 * End position (inclusive) (base 1)
63 * start position of matched range (base 1)
65 * end of matched range (inclusive, base 1)
67 public Match(SequenceI seq, int start, int end)
74 public SequenceI getSequence()
90 * Returns the string of characters in the matched region, prefixed by the
91 * start position, e.g. "12CGT" or "208K"
94 public String toString()
96 final int from = Math.max(start - 1, 0);
97 String startPosition = String.valueOf(from);
98 return startPosition + getCharacters();
102 * Returns the string of characters in the matched region.
104 public String getCharacters()
106 char[] chars = sequence.getSequence();
107 // convert start/end to base 0 (with bounds check)
108 final int from = Math.max(start - 1, 0);
109 final int to = Math.min(end, chars.length + 1);
110 return String.valueOf(Arrays.copyOfRange(chars, from, to));
113 public void setSequence(SequenceI seq)
119 * Hashcode is the hashcode of the matched sequence plus a hash of start and
120 * end positions. Match objects that pass the test for equals are guaranteed
121 * to have the same hashcode.
124 public int hashCode()
126 int hash = sequence == null ? 0 : sequence.hashCode();
133 * Two Match objects are equal if they are for the same sequence, start and
137 public boolean equals(Object obj)
139 if (obj == null || !(obj instanceof Match))
143 Match m = (Match) obj;
144 return (this.sequence == m.sequence && this.start == m.start && this.end == m.end);
149 * This method replaces the old search results which merely held an alignment
150 * index of search matches. This broke when sequences were moved around the
160 public void addResult(SequenceI seq, int start, int end)
162 matches.add(new Match(seq, start, end));
166 * Quickly check if the given sequence is referred to in the search results
169 * (specific alignment sequence or a dataset sequence)
170 * @return true if the results involve sequence
172 public boolean involvesSequence(SequenceI sequence)
174 SequenceI ds = sequence.getDatasetSequence();
175 for (Match m : matches)
177 if (m.sequence != null
178 && (m.sequence == sequence || m.sequence == ds))
187 * This Method returns the search matches which lie between the start and end
188 * points of the sequence in question. It is optimised for returning objects
189 * for drawing on SequenceCanvas
191 public int[] getResults(SequenceI sequence, int start, int end)
193 if (matches.isEmpty())
200 int resultLength, matchStart = 0, matchEnd = 0;
202 for (Match m : matches)
205 if (m.sequence == sequence)
208 // locate aligned position
209 matchStart = sequence.findIndex(m.start) - 1;
210 matchEnd = sequence.findIndex(m.end) - 1;
212 else if (m.sequence == sequence.getDatasetSequence())
215 // locate region in local context
216 matchStart = sequence.findIndex(m.start) - 1;
217 matchEnd = sequence.findIndex(m.end) - 1;
221 if (matchStart <= end && matchEnd >= start)
223 if (matchStart < start)
236 { matchStart, matchEnd };
240 resultLength = result.length;
241 tmp = new int[resultLength + 2];
242 System.arraycopy(result, 0, tmp, 0, resultLength);
244 result[resultLength] = matchStart;
245 result[resultLength + 1] = matchEnd;
251 // System.err.println("Outwith bounds!" + matchStart+">"+end +" or "
252 // + matchEnd+"<"+start);
261 return matches.size();
264 public SequenceI getResultSequence(int index)
266 return matches.get(index).sequence;
270 * Returns the start position of the i'th match in the search results.
275 public int getResultStart(int i)
277 return matches.get(i).start;
281 * Returns the end position of the i'th match in the search results.
286 public int getResultEnd(int i)
288 return matches.get(i).end;
292 * Returns true if no search result matches are held.
296 public boolean isEmpty()
298 return matches.isEmpty();
302 * Returns the list of matches.
306 public List<Match> getResults()
312 * Return the results as a string of characters (bases) prefixed by start
313 * position(s). Meant for use when the context ensures that all matches are to
314 * regions of the same sequence (otherwise the result is meaningless).
319 public String toString()
321 StringBuilder result = new StringBuilder(256);
322 for (Match m : matches)
324 result.append(m.toString());
326 return result.toString();
330 * Return the results as a string of characters (bases). Meant for use when
331 * the context ensures that all matches are to regions of the same sequence
332 * (otherwise the result is meaningless).
336 public String getCharacters()
338 StringBuilder result = new StringBuilder(256);
339 for (Match m : matches)
341 result.append(m.getCharacters());
343 return result.toString();
347 * Hashcode is has derived from the list of matches. This ensures that when
348 * two SearchResults objects satisfy the test for equals(), then they have the
352 public int hashCode()
354 return matches.hashCode();
358 * Two SearchResults are considered equal if they contain the same matches in
362 public boolean equals(Object obj)
364 if (obj == null || !(obj instanceof SearchResults))
368 SearchResults sr = (SearchResults) obj;
369 return ((ArrayList<Match>) this.matches).equals(sr.matches);