@Override
public Document execute(
Repository repository, Git git, CallSpecification spec, DocumentWriter writer, Values values)
throws GitAPIException, IOException {
if (spec.parameterCount() == 0) {
// This is the top-level "/branches" node
writer.setPrimaryType(GitLexicon.TREES);
// Generate the child references to the branches and tags. Branches are likely used more
// often, so list them first...
addBranchesAsChildren(git, spec, writer);
addTagsAsChildren(git, spec, writer);
addCommitsAsChildren(git, spec, writer, pageSize);
} else if (spec.parameterCount() == 1) {
// This is a particular branch/tag/commit node ...
String branchOrTagOrObjectId = spec.parameter(0);
ObjectId objId = resolveBranchOrTagOrCommitId(repository, branchOrTagOrObjectId);
RevWalk walker = new RevWalk(repository);
walker.setRetainBody(true); // we need to parse the commit for the top-level
try {
RevCommit commit = walker.parseCommit(objId);
// Add the properties for this node ...
String committer = commit.getCommitterIdent().getName();
String author = commit.getAuthorIdent().getName();
DateTime committed = values.dateFrom(commit.getCommitTime());
writer.setPrimaryType(GitLexicon.FOLDER);
writer.addProperty(JcrLexicon.CREATED, committed);
writer.addProperty(JcrLexicon.CREATED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, objId.name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, commit.getShortMessage());
writer.addProperty(
GitLexicon.HISTORY,
GitHistory.referenceToHistory(objId, branchOrTagOrObjectId, values));
writer.addProperty(GitLexicon.DETAIL, GitCommitDetails.referenceToCommit(objId, values));
// Add the top-level children of the directory ...
addInformationForPath(repository, git, writer, commit, "", spec, values);
} finally {
walker.dispose();
}
} else {
// This is a folder or file within the directory structure ...
String branchOrTagOrObjectId = spec.parameter(0);
String path = spec.parametersAsPath(1);
ObjectId objId = resolveBranchOrTagOrCommitId(repository, branchOrTagOrObjectId);
RevWalk walker = new RevWalk(repository);
walker.setRetainBody(false); // we don't need top-level commit information
try {
// Get the commit information ...
RevCommit commit = walker.parseCommit(objId);
// Add the top-level children of the directory ...
addInformationForPath(repository, git, writer, commit, path, spec, values);
} finally {
walker.dispose();
}
}
return writer.document();
}
protected void addInformationForPath(
Repository repository,
Git git,
DocumentWriter writer,
RevCommit commit,
String path,
CallSpecification spec,
Values values)
throws GitAPIException, IOException {
// Make sure the path is in the canonical form we need ...
if (path.startsWith("/")) {
if (path.length() == 1) path = "";
else path = path.substring(1);
}
// Now see if we're actually referring to the "jcr:content" node ...
boolean isContentNode = false;
if (path.endsWith(JCR_CONTENT_SUFFIX)) {
isContentNode = true;
path = path.substring(0, path.length() - JCR_CONTENT_SUFFIX.length());
}
// Create the TreeWalk that we'll use to navigate the files/directories ...
final TreeWalk tw = new TreeWalk(repository);
tw.addTree(commit.getTree());
if ("".equals(path)) {
// This is the top-level directory, so we don't need to pre-walk to find anything ...
tw.setRecursive(false);
while (tw.next()) {
String childName = tw.getNameString();
String childId = spec.childId(childName);
writer.addChild(childId, childName);
}
} else {
// We need to first find our path *before* we can walk the children ...
PathFilter filter = PathFilter.create(path);
tw.setFilter(filter);
while (tw.next()) {
if (filter.isDone(tw)) {
break;
} else if (tw.isSubtree()) {
tw.enterSubtree();
}
}
// Now that the TreeWalk is the in right location given by the 'path', we can get the
if (tw.isSubtree()) {
// The object at the 'path' is a directory, so go into it ...
tw.enterSubtree();
// Find the commit in which this folder was last modified ...
// This may not be terribly efficient, but it seems to work faster on subsequent runs ...
RevCommit folderCommit = git.log().addPath(path).call().iterator().next();
// Add folder-related properties ...
String committer = folderCommit.getCommitterIdent().getName();
String author = folderCommit.getAuthorIdent().getName();
DateTime committed = values.dateFrom(folderCommit.getCommitTime());
writer.setPrimaryType(GitLexicon.FOLDER);
writer.addProperty(JcrLexicon.CREATED, committed);
writer.addProperty(JcrLexicon.CREATED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, folderCommit.getId().name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, folderCommit.getShortMessage());
// And now walk the contents of the directory ...
while (tw.next()) {
String childName = tw.getNameString();
String childId = spec.childId(childName);
writer.addChild(childId, childName);
}
} else {
// The path specifies a file (or a content node) ...
// Find the commit in which this folder was last modified ...
// This may not be terribly efficient, but it seems to work faster on subsequent runs ...
RevCommit fileCommit = git.log().addPath(path).call().iterator().next();
// Add file-related properties ...
String committer = fileCommit.getCommitterIdent().getName();
String author = fileCommit.getAuthorIdent().getName();
DateTime committed = values.dateFrom(fileCommit.getCommitTime());
if (isContentNode) {
writer.setPrimaryType(GitLexicon.RESOURCE);
writer.addProperty(JcrLexicon.LAST_MODIFIED, committed);
writer.addProperty(JcrLexicon.LAST_MODIFIED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, fileCommit.getId().name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, fileCommit.getShortMessage());
// Create the BinaryValue ...
ObjectId fileObjectId = tw.getObjectId(0);
ObjectLoader fileLoader = repository.open(fileObjectId);
BinaryKey key = new BinaryKey(fileObjectId.getName());
BinaryValue value = values.binaryFor(key, fileLoader.getSize());
if (value == null) {
// It wasn't found in the binary store ...
if (fileLoader.isLarge()) {
// Too large to hold in memory, so use the binary store (which reads the file
// immediately) ...
value = values.binaryFrom(fileLoader.openStream());
} else {
// This is small enough to fit into a byte[], but it still may be pretty big ...
value =
new GitBinaryValue(
fileObjectId,
fileLoader,
connector.getSourceName(),
name,
connector.getMimeTypeDetector());
}
}
writer.addProperty(JcrLexicon.DATA, value);
if (connector.includeMimeType()) {
try {
String filename =
spec.parameter(spec.parameterCount() - 1); // the last is 'jcr:content'
String mimeType = value.getMimeType(filename);
if (mimeType != null) writer.addProperty(JcrLexicon.MIMETYPE, mimeType);
} catch (RepositoryException e) {
// do nothing
} catch (IOException e) {
// do nothing
}
}
} else {
writer.setPrimaryType(GitLexicon.FILE);
writer.addProperty(JcrLexicon.CREATED, committed);
writer.addProperty(JcrLexicon.CREATED_BY, committer);
writer.addProperty(GitLexicon.OBJECT_ID, fileCommit.getId().name());
writer.addProperty(GitLexicon.AUTHOR, author);
writer.addProperty(GitLexicon.COMMITTER, committer);
writer.addProperty(GitLexicon.COMMITTED, committed);
writer.addProperty(GitLexicon.TITLE, fileCommit.getShortMessage());
// Add the "jcr:content" child node ...
String childId = spec.childId(JCR_CONTENT);
writer.addChild(childId, JCR_CONTENT);
}
}
}
}