ED_LRR/ed_lrr_gui/web/__main__.py

101 lines
3.1 KiB
Python

from flask import Flask, jsonify
import uuid
import json
from webargs import fields, validate
from webargs.flaskparser import use_args
from flask_sqlalchemy import SQLAlchemy
from sqlalchemy_utils import Timestamp, generic_repr
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import scoped_session, sessionmaker, relationship, backref
from sqlalchemy.types import Float, String, Boolean
app = Flask(__name__)
app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///jobs.db"
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
db = SQLAlchemy(app)
@generic_repr
class Job(db.Model, Timestamp):
id = db.Column(db.String, default=lambda: str(uuid.uuid4()), primary_key=True)
jump_range = db.Column(db.Float, nullable=False)
mode = db.Column(db.String, default="bfs")
systems = db.Column(db.String)
permute = db.Column(db.String, default=None, nullable=True)
primary = db.Column(db.Boolean, default=False)
factor = db.Column(db.Float, default=0.5)
done = db.Column(db.DateTime, nullable=True, default=None)
started = db.Column(db.DateTime, nullable=True, default=None)
progress = db.Column(db.Float, default=0.0)
# ============================================================
@classmethod
def new(cls, **kwargs):
obj = cls(**kwargs)
db.session.add(obj)
db.session.commit()
print(obj)
return obj
@property
def dict(self):
ret = {}
for col in self.__table__.columns:
ret[col.name] = getattr(self, col.name)
ret["systems"] = json.loads(ret["systems"])
return ret
@dict.setter
def set_dict(self, *args, **kwargs):
raise NotImplementedError
db.create_all()
db.session.commit()
@app.errorhandler(422)
@app.errorhandler(400)
def handle_error(err):
headers = err.data.get("headers", None)
messages = err.data.get("messages", ["Invalid request."])
if headers:
return jsonify({"errors": messages}), err.code, headers
else:
return jsonify({"errors": messages}), err.code
@app.route("/route", methods=["GET", "POST"])
@use_args(
{
"jump_range": fields.Float(required=True),
"mode": fields.String(
missing="bfs", validate=validate.OneOf(["bfs", "greedy", "a-star"])
),
"systems": fields.DelimitedList(fields.String, required=True),
"permute": fields.String(
missing=None,
validate=validate.OneOf(["all", "keep_first", "keep_last", "keep_both"]),
),
"primary": fields.Boolean(missing=False),
"factor": fields.Float(missing=0.5),
}
)
def route(args):
args["systems"] = json.dumps(args["systems"])
for k, v in args.items():
print(k, v)
return jsonify({"id": Job.new(**args).id})
@app.route("/status/<uuid:job_id>")
def status(job_id):
job = db.session.query(Job).get_or_404(str(job_id))
return jsonify(job.dict)
if __name__ == "__main__":
app.run(host="0.0.0.0", port=3777, debug=True)