test for TreeNode
Signed-off-by:jasstion <jasstion@jasstion-K52JU>
add new struct for tree
Signed-off-by:jasstion <jasstion@jasstion-K52JU>
solr helper functions to use to process solr query parameters
Signed-off-by:jasstion <jasstion@jasstion-K52JU>
add new service called tps to show topic percentage of one journal among each year
Signed-off-by:jasstion <jasstion@jasstion-K52JU>