/**
* this method uses a stringbuilder to create a new path for children. This is faster than string
* appends ( str1 + str2).
*
* @param oa OutputArchive to write to.
* @param path a string builder.
* @throws IOException
* @throws InterruptedException
*/
void serializeNode(OutputArchive oa, StringBuilder path) throws IOException {
String pathString = path.toString();
DataNode node = getNode(pathString);
if (node == null) {
return;
}
String children[] = null;
synchronized (node) {
scount++;
oa.writeString(pathString, "path");
oa.writeRecord(node, "node");
children = node.children.toArray(new String[node.children.size()]);
}
path.append('/');
int off = path.length();
if (children != null) {
for (String child : children) {
// since this is single buffer being resused
// we need
// to truncate the previous bytes of string.
path.delete(off, Integer.MAX_VALUE);
path.append(child);
serializeNode(oa, path);
}
}
}
public void serialize(OutputArchive oa, String tag) throws IOException {
scount = 0;
serializeList(longKeyMap, oa);
serializeNode(oa, new StringBuilder(""));
// / marks end of stream
// we need to check if clear had been called in between the snapshot.
if (root != null) {
oa.writeString("/", "path");
}
}