rsrv

package
v0.28.2 Latest Latest
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 Go to latest Published: Nov 5, 2020 License: BSD-3-Clause Imports: 33 Imported by: 0

Documentation

Overview

Package rsrv exposes HTTP end-points to manipulate ROOT files.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Branch 

type Branch struct {
	Type     string   `json:"type"`
	Name     string   `json:"name"`
	Branches []Branch `json:"branches"`
	Leaves   []Leaf   `json:"leaves"`
}

type CloseFileRequest 

type CloseFileRequest struct {
	URI string `json:"uri"`
}

type DB 

type DB struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewDB 

func NewDB(dir string) *DB

func (*DB) Close 

func (db *DB) Close()

func (*DB) Files 

func (db *DB) Files() []string

func (*DB) Tx 

func (db *DB) Tx(uri string, fct func(f *riofs.File) error) error

type Dirent 

type Dirent struct {
	Path  string `json:"path"`
	Type  string `json:"type"`
	Name  string `json:"name"`
	Title string `json:"title,omitempty"`
	Cycle int    `json:"cycle"`
}

type DirentRequest 

type DirentRequest struct {
	URI       string `json:"uri"`
	Dir       string `json:"dir,omitempty"`
	Recursive bool   `json:"recursive,omitempty"`
}

type DirentResponse 

type DirentResponse struct {
	URI     string   `json:"uri"`
	Content []Dirent `json:"content,omitempty"`
}

type File 

type File struct {
	URI     string `json:"uri"`
	Version int    `json:"version"`
}

type Leaf 

type Leaf struct {
	Type string `json:"type"`
	Name string `json:"name"`
}

type LineStyle 

type LineStyle struct {
	Color   color.Color `json:"color,omitempty"`
	Width   vg.Length   `json:"width,omitempty"`
	Dashes  []vg.Length `json:"dashes,omitempty"`
	DashOff vg.Length   `json:"dash_offset,omitempty"`
}

type ListResponse 

type ListResponse struct {
	Files []File `json:"files"`
}

type OpenFileRequest 

type OpenFileRequest struct {
	URI string `json:"uri"`
}

OpenFileRequest describes a request to open a file located at the provided URI.

type PlotH1Request 

type PlotH1Request struct {
	URI string `json:"uri"`
	Dir string `json:"dir"`
	Obj string `json:"obj"`

	Options PlotOptions `json:"options"`
}

type PlotH2Request 

type PlotH2Request struct {
	URI string `json:"uri"`
	Dir string `json:"dir"`
	Obj string `json:"obj"`

	Options PlotOptions `json:"options"`
}

type PlotOptions 

type PlotOptions struct {
	Title string `json:"title,omitempty"`
	X     string `json:"x,omitempty"`
	Y     string `json:"y,omitempty"`

	Type   string    `json:"type"`
	Width  vg.Length `json:"width"`
	Height vg.Length `json:"height"`

	Line      LineStyle   `json:"line,omitempty"`
	FillColor color.Color `json:"fill_color,omitempty"`
}

func (PlotOptions) MarshalJSON 

func (opt PlotOptions) MarshalJSON() ([]byte, error)

func (*PlotOptions) UnmarshalJSON 

func (opt *PlotOptions) UnmarshalJSON(p []byte) error

type PlotResponse 

type PlotResponse struct {
	URI string `json:"uri"`
	Dir string `json:"dir"`
	Obj string `json:"obj"`

	Data string `json:"data"`
}

type PlotS2Request 

type PlotS2Request struct {
	URI string `json:"uri"`
	Dir string `json:"dir"`
	Obj string `json:"obj"`

	Options PlotOptions `json:"options"`
}

type PlotTreeRequest 

type PlotTreeRequest struct {
	URI  string   `json:"uri"`
	Dir  string   `json:"dir"`
	Obj  string   `json:"obj"`
	Vars []string `json:"vars"`

	Options PlotOptions `json:"options"`
}

type Server 

type Server struct {
	// contains filtered or unexported fields
}

Server serves and manages ROOT files.

func New 

func New(dir string) *Server

New creates a new server.

func (*Server) CloseFile 

func (srv *Server) CloseFile(w http.ResponseWriter, r *http.Request)

CloseFile closes a file specified by the CloseFileRequest: 

{"uri": "file:///some/file.root"}

func (*Server) DB 

func (srv *Server) DB(r *http.Request) (*DB, error)

DB returns the underlying data base of files associated with the user identified by their cookie.

func (*Server) Dirent 

func (srv *Server) Dirent(w http.ResponseWriter, r *http.Request)

Dirent lists the content of a ROOT directory inside a ROOT file. Dirent expects a DirentRequest: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "recursive": true}
{"uri": "root://example.org/some/file.root", "dir": "/some/dir"}

Dirent replies with a DirentResponse: 

{"uri": "file:///some/file.root", "content": [
  {"path": "/dir", "type": "TDirectoryFile", "name": "dir", "title": "my title"},
  {"path": "/dir/obj", "type": "TObjString", "name": "obj", "title": "obj string"},
  {"path": "/dir/sub", "type": "TDirectoryFile", "name": "sub", "title": "my sub dir"},
  {"path": "/dir/sub/obj", "type": "TObjString", "name": "obj", "title": "my sub obj string"}
]}

func (*Server) ListFiles 

func (srv *Server) ListFiles(w http.ResponseWriter, r *http.Request)

ListFiles lists all the files currently known to the server. ListFiles replies with a StatusOK and a ListResponse: 

[{"uri": "file:///some/file.root"},
 {"uri": "root://example.org/file.root"}]

func (*Server) OpenFile 

func (srv *Server) OpenFile(w http.ResponseWriter, r *http.Request)

OpenFile opens a ROOT file located at the provided URI. OpenFile expects an OpenFileRequest payload as JSON: 

{"uri": "file:///some/file.root"}
{"uri": "root://example.org/some/file.root"}

OpenFile replies with a STATUS/OK or STATUS/NotFound if no such file exist.

func (*Server) Ping 

func (srv *Server) Ping(w http.ResponseWriter, r *http.Request)

Ping verifies the connection to the server is alive. Ping replies with a StatusOK.

func (*Server) PlotH1 

func (srv *Server) PlotH1(w http.ResponseWriter, r *http.Request)

PlotH1 plots the 1-dim histogram specified by the PlotH1Request: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "h1", "type": "png"}
{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "h1", "type": "svg",
   "options": {
     "title": "my histo title", "x": "my x-axis", "y": "my y-axis",
     "line": {"color": "#ff0000ff", ...},
     "fill_color": "#00ff00ff"}
}}

PlotH1 replies with a PlotResponse, where "data" contains the base64 encoded representation of the plot.

func (*Server) PlotH2 

func (srv *Server) PlotH2(w http.ResponseWriter, r *http.Request)

PlotH2 plots the 2-dim histogram specified by the PlotH2Request: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "h2", "type": "png"}
{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "h2", "type": "svg",
   "options": {
     "title": "my histo title", "x": "my x-axis", "y": "my y-axis"
}}

PlotH2 replies with a PlotResponse, where "data" contains the base64 encoded representation of the plot.

func (*Server) PlotS2 

func (srv *Server) PlotS2(w http.ResponseWriter, r *http.Request)

PlotS2 plots the 2-dim scatter specified by the PlotS2Request: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "gr", "type": "png"}
{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "gr", "type": "svg",
   "options": {
     "title": "my scatter title", "x": "my x-axis", "y": "my y-axis",
     "line": {"color": "#ff0000ff", ...}
}}

PlotS2 replies with a PlotResponse, where "data" contains the base64 encoded representation of the plot.

func (*Server) PlotTree 

func (srv *Server) PlotTree(w http.ResponseWriter, r *http.Request)

PlotTree plots the Tree branch(es) specified by the PlotBranchRequest: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "gr", "type": "png", "vars": ["pt"]}
{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "gr", "type": "svg", "vars": ["pt", "eta"],
   "options": {
     "title": "my plot title", "x": "my x-axis", "y": "my y-axis",
     "line": {"color": "#ff0000ff", ...}
}}

PlotBranch replies with a PlotResponse, where "data" contains the base64 encoded representation of the plot.

func (*Server) Shutdown 

func (srv *Server) Shutdown()

Shutdown shuts the server down.

func (*Server) Tree 

func (srv *Server) Tree(w http.ResponseWriter, r *http.Request)

Tree returns the structure of a TTree specified by the TreeRequest: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "myTree"}

Tree replies with a TreeResponse: 

{"uri": "file:///some/file.root", "dir": "/some/dir", "obj": "myTree",
  "tree": {
    "type": "TTree", "name": "myTree", "title": "my title", "cycle": 1,
    "entries": 42,
    "branches": [{"type": "TBranch", "name": "Int64"}, ...],
    "leaves": [{"type": "TLeafL", "name": "Int64"}, ...]
  }
}

func (*Server) UploadFile 

func (srv *Server) UploadFile(w http.ResponseWriter, r *http.Request)

UploadFile uploads a ROOT file, provided as a multipart form data under the key "groot-file", to the remote server. The destination of that ROOT file is also taken from the multipart form, under the key "groot-dst".

UploadFile replies with a StatusConflict if a file with the named file already exists in the remote server.

type Tree 

type Tree struct {
	Type     string   `json:"type"`
	Name     string   `json:"name"`
	Title    string   `json:"title"`
	Entries  int64    `json:"entries"`
	Branches []Branch `json:"branches"`
	Leaves   []Leaf   `json:"leaves"`
}

type TreeRequest 

type TreeRequest struct {
	URI string `json:"uri"`
	Dir string `json:"dir"`
	Obj string `json:"obj"`
}

type TreeResponse 

type TreeResponse struct {
	URI  string `json:"uri"`
	Dir  string `json:"dir"`
	Obj  string `json:"obj"`
	Tree Tree   `json:"tree"`
}

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