src/main/java/de/uapcore/lightpit/viewmodel/util/IssueSorter.java@4a391ffa30d3 (annotated)
src/main/java/de/uapcore/lightpit/viewmodel/util/IssueSorter.java
Fri, 23 Oct 2020 11:44:02 +0200
- author
- Mike Becker <universe@uap-core.de>
- date
- Fri, 23 Oct 2020 11:44:02 +0200
- changeset 143
- 4a391ffa30d3
- parent 141
- 8160dfc4dbc3
- child 150
- 822b7e3d064d
- permissions
- -rw-r--r--
fixes bug in IssueSorter where ETA did not get sorted correctly
| universe@121 | 1 | package de.uapcore.lightpit.viewmodel.util; |
| universe@121 | 2 | |
| universe@121 | 3 | import de.uapcore.lightpit.entities.Issue; |
| universe@121 | 4 | import de.uapcore.lightpit.entities.IssueStatus; |
| universe@121 | 5 | |
| universe@121 | 6 | import java.util.Arrays; |
| universe@121 | 7 | import java.util.Comparator; |
| universe@121 | 8 | |
| universe@121 | 9 | public class IssueSorter implements Comparator<Issue> { |
| universe@121 | 10 | |
| universe@121 | 11 | public enum Field { |
| universe@141 | 12 | DONE, ETA, UPDATED |
| universe@121 | 13 | } |
| universe@121 | 14 | |
| universe@121 | 15 | public static class Criteria { |
| universe@121 | 16 | private Field field; |
| universe@121 | 17 | private boolean asc; |
| universe@121 | 18 | |
| universe@121 | 19 | public Criteria(Field field, boolean asc) { |
| universe@121 | 20 | this.field = field; |
| universe@121 | 21 | this.asc = asc; |
| universe@121 | 22 | } |
| universe@121 | 23 | |
| universe@121 | 24 | @Override |
| universe@121 | 25 | public boolean equals(Object obj) { |
| universe@121 | 26 | if (obj == null || !obj.getClass().equals(Criteria.class)) |
| universe@121 | 27 | return false; |
| universe@121 | 28 | final var other = (Criteria)obj; |
| universe@121 | 29 | return other.field.equals(field) && other.asc == asc; |
| universe@121 | 30 | } |
| universe@121 | 31 | } |
| universe@121 | 32 | |
| universe@121 | 33 | private final Criteria[] criteria; |
| universe@121 | 34 | |
| universe@121 | 35 | public IssueSorter(Criteria ... criteria) { |
| universe@121 | 36 | this.criteria = criteria; |
| universe@121 | 37 | } |
| universe@121 | 38 | |
| universe@121 | 39 | private int compare(Issue left, Issue right, Criteria criteria) { |
| universe@121 | 40 | int result; |
| universe@121 | 41 | switch (criteria.field) { |
| universe@141 | 42 | case DONE: |
| universe@121 | 43 | result = Boolean.compare( |
| universe@121 | 44 | left.getPhase() == IssueStatus.PHASE_DONE, |
| universe@121 | 45 | right.getPhase() == IssueStatus.PHASE_DONE); |
| universe@121 | 46 | break; |
| universe@121 | 47 | case ETA: |
| universe@121 | 48 | if (left.getEta() != null && right.getEta() != null) |
| universe@121 | 49 | result = left.getEta().compareTo(right.getEta()); |
| universe@121 | 50 | else |
| universe@143 | 51 | result = left.getEta() != null ? -1 : 1; |
| universe@121 | 52 | break; |
| universe@121 | 53 | case UPDATED: |
| universe@121 | 54 | result = left.getUpdated().compareTo(right.getUpdated()); |
| universe@121 | 55 | break; |
| universe@121 | 56 | default: |
| universe@121 | 57 | throw new UnsupportedOperationException(); |
| universe@121 | 58 | } |
| universe@121 | 59 | return criteria.asc ? result : -result; |
| universe@121 | 60 | } |
| universe@121 | 61 | |
| universe@121 | 62 | @Override |
| universe@121 | 63 | public int compare(Issue left, Issue right) { |
| universe@121 | 64 | for (var c : criteria) { |
| universe@121 | 65 | int r = compare(left, right, c); |
| universe@121 | 66 | if (r != 0) return r; |
| universe@121 | 67 | } |
| universe@121 | 68 | return 0; |
| universe@121 | 69 | } |
| universe@121 | 70 | |
| universe@121 | 71 | @Override |
| universe@121 | 72 | public boolean equals(Object o) { |
| universe@121 | 73 | if (o == null || !o.getClass().equals(IssueSorter.class)) |
| universe@121 | 74 | return false; |
| universe@121 | 75 | final var other = (IssueSorter) o; |
| universe@121 | 76 | return Arrays.equals(criteria, other.criteria); |
| universe@121 | 77 | } |
| universe@121 | 78 | } |
