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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "logutil.h"
#include "dirtraverse.h"
#include <vector>
using vespalib::JSONStringer;
namespace search::util {
vespalib::string
LogUtil::extractLastElements(const vespalib::string & path, size_t numElems)
{
std::vector<vespalib::string> elems;
for (size_t pos = 0; pos < path.size(); ) {
size_t fpos = path.find('/', pos);
if (fpos == vespalib::string::npos) {
fpos = path.size();
}
size_t len = fpos - pos;
if (len > 0) {
elems.push_back(path.substr(pos, len));
}
pos = fpos + 1;
}
vespalib::string retval;
if (numElems >= elems.size() && path[0] == '/') {
retval.append("/");
}
size_t num = std::min(numElems, elems.size());
size_t pos = elems.size() - num;
for (size_t i = 0; i < num; ++i) {
if (i != 0) retval.append("/");
retval.append(elems[pos + i]);
}
return retval;
}
void
LogUtil::logDir(JSONStringer & jstr, const vespalib::string & path, size_t numElems)
{
jstr.beginObject();
jstr.appendKey("dir").appendString(LogUtil::extractLastElements(path, numElems));
search::DirectoryTraverse dirt(path.c_str());
jstr.appendKey("size").appendInt64(dirt.GetTreeSize());
jstr.endObject();
}
}
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