Example usage for org.eclipse.jgit.revwalk RevWalk lookupAny

Introduction

In this page you can find the example usage for org.eclipse.jgit.revwalk RevWalk lookupAny.

Prototype

@NonNull
public RevObject lookupAny(AnyObjectId id, int type) 

Source Link

Document

Locate a reference to any object without loading it.

Usage

From source file:org.kie.commons.java.nio.fs.jgit.util.JGitUtil.java

License:Apache License

public static InputStream resolveInputStream(final Git git, final String treeRef, final String path) {
    checkNotNull("git", git);
    checkNotEmpty("treeRef", treeRef);
    checkNotEmpty("path", path);

    final String gitPath = fixPath(path);

    RevWalk rw = null;
    TreeWalk tw = null;/*www.j av a  2s  . c  o  m*/
    try {
        final ObjectId tree = git.getRepository().resolve(treeRef + "^{tree}");
        rw = new RevWalk(git.getRepository());
        tw = new TreeWalk(git.getRepository());
        tw.setFilter(createFromStrings(singleton(gitPath)));
        tw.reset(tree);
        while (tw.next()) {
            if (tw.isSubtree() && !gitPath.equals(tw.getPathString())) {
                tw.enterSubtree();
                continue;
            }
            final ObjectId entid = tw.getObjectId(0);
            final FileMode entmode = tw.getFileMode(0);
            final RevObject ro = rw.lookupAny(entid, entmode.getObjectType());
            rw.parseBody(ro);
            final ObjectLoader ldr = git.getRepository().open(ro.getId(), Constants.OBJ_BLOB);
            return ldr.openStream();
        }
    } catch (final Throwable t) {
        throw new NoSuchFileException("Can't find '" + gitPath + "' in tree '" + treeRef + "'");
    } finally {
        if (rw != null) {
            rw.dispose();
        }
        if (tw != null) {
            tw.release();
        }
    }
    throw new NoSuchFileException("");
}

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