Example usage for org.eclipse.jgit.blame BlameGenerator next

Introduction

In this page you can find the example usage for org.eclipse.jgit.blame BlameGenerator next.

Prototype

public boolean next() throws IOException 

Source Link

Document

Step the blame algorithm one iteration.

Usage

From source file:com.google.gitiles.blame.BlameCacheImpl.java

License:Open Source License

private static List<Region> loadRegions(BlameGenerator gen) throws IOException {
    Map<ObjectId, PooledCommit> commits = Maps.newHashMap();
    Interner<String> strings = Interners.newStrongInterner();
    int lineCount = gen.getResultContents().size();

    List<Region> regions = Lists.newArrayList();
    while (gen.next()) {
        String path = gen.getSourcePath();
        PersonIdent author = gen.getSourceAuthor();
        ObjectId commit = gen.getSourceCommit();
        checkState(path != null && author != null && commit != null);

        PooledCommit pc = commits.get(commit);
        if (pc == null) {
            pc = new PooledCommit(commit.copy(), new PersonIdent(strings.intern(author.getName()),
                    strings.intern(author.getEmailAddress()), author.getWhen(), author.getTimeZone()));
            commits.put(pc.commit, pc);/*from   w ww .  j a v  a2s.  com*/
        }
        path = strings.intern(path);
        commit = pc.commit;
        author = pc.author;
        regions.add(new Region(path, commit, author, gen.getResultStart(), gen.getResultEnd()));
    }
    Collections.sort(regions);

    // Fill in any gaps left by bugs in JGit, since rendering code assumes the
    // full set of contiguous regions.
    List<Region> result = Lists.newArrayListWithExpectedSize(regions.size());
    Region last = null;
    for (Region r : regions) {
        if (last != null) {
            checkState(last.getEnd() <= r.getStart());
            if (last.getEnd() < r.getStart()) {
                result.add(new Region(null, null, null, last.getEnd(), r.getStart()));
            }
        }
        result.add(r);
        last = r;
    }
    if (last != null && last.getEnd() != lineCount) {
        result.add(new Region(null, null, null, last.getEnd(), lineCount));
    }

    return ImmutableList.copyOf(result);
}

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