Progress

examples/dream.py

@@ -0,0 +1,22 @@
+import abp
+import time
+
+psi = abp.GraphState(use_server = True)
+
+# This all happens instantly
+psi.add_qubits(xrange(10))
+psi.add_qubit(500)
+psi.add_qubit(10) # fails
+
+for i in range(10):
+    psi.act_hadamard(i)
+
+for i in range(10, 100)
+    psi.act_local_rotation(i, "hadamard")
+
+time.sleep(10)
+# The user does some stuff and edits the state
+
+print psi # We see the new qubits
+
+

server/server.py

@@ -1,112 +1,31 @@
-from flask import Flask, request, render_template, jsonify, g
+from flask import Flask, request, render_template, jsonify
+from flask_sockets import Sockets
 from werkzeug.contrib.cache import SimpleCache
+import werkzeug.serving
 import json
 import abp
-import argparse
 
-#TODO: only send deltas
-
-#graphstate = abp.GraphState()
 cache = SimpleCache(default_timeout = 10000)
 cache.set("state", abp.GraphState())
 app = Flask(__name__)
-
-class InvalidUsage(Exception):
-    status_code = 400
-
-    def __init__(self, message, status_code=None, payload=None):
-        Exception.__init__(self)
-        self.message = message
-        if status_code is not None:
-            self.status_code = status_code
-        self.payload = payload
-
-    def to_dict(self):
-        rv = dict(self.payload or ())
-        rv['message'] = self.message
-        return rv
-
-@app.errorhandler(InvalidUsage)
-def handle_invalid_usage(error):
-    response = jsonify(error.to_dict())
-    response.status_code = error.status_code
-    return response
-
-@app.before_request
-def before_request():
-    g.state = cache.get("state")
-
-@app.after_request
-def after_request(response):
-    cache.set("state", g.state)
-    return response
+sockets = Sockets(app)
 
 @app.route("/")
 def index():
     return render_template("index.html")
 
-@app.route("/state", methods = ["GET", "POST"])
-def state():
-    if request.method == "GET":
-        output = g.state.to_json()
-        output["needs_update"] = cache.get("needs_update")
-        cache.set("needs_update", False)
-        return jsonify(output)
-    elif request.method == "POST":
-        g.state = abp.GraphState()
-        g.state.from_json(json.loads(request.data))
-        cache.set("needs_update", True)
-        return jsonify({"update": "ok"})
-
-@app.route("/add_node/<int:node>")
-def add_node(node):
-    """ Add a node to the graph """
-    if node in g.state.vops:
-        raise InvalidUsage("Node {} is already in the graph".format(node))
-
-    g.state.add_node(node)
-    g.state.layout()
-    cache.set("needs_update", True)
-    return jsonify({"add_node": "okay"})
-
-@app.route("/act_local_rotation/<int:node>/<int:operation>")
-def act_local_rotation(node, operation):
-    """ Add a node to the graph """
-    # TODO: try to lookup the operation first
-    if not node in g.state.vops:
-        raise InvalidUsage("Node {} does not exist".format(node))
-    if not operation in range(24):
-        raise InvalidUsage("Invalid local rotation {}".format(operation))
-
-    g.state.act_local_rotation(node, operation)
-    cache.set("needs_update", True)
-    return jsonify({"act_local_rotation": "okay"})
-
-@app.route("/act_cz/<int:a>/<int:b>")
-def act_cz(a, b):
-    """ Add a node to the graph """
-    for node in (a, b):
-        if not node in g.state.vops:
-            raise InvalidUsage("Node {} does not exist".format(node))
-    g.state.act_cz(a, b)
-    g.state.layout()
-    cache.set("needs_update", True)
-    return jsonify({"act_cz": "okay"})
-
-@app.route("/clear")
-def clear():
-    """ Clear the current state """
-    g.state = abp.GraphState()
-    cache.set("needs_update", True)
-    return jsonify({"clear": "okay"})
-    
-
-if __name__ == "__main__":
-    parser = argparse.ArgumentParser()
-    parser.add_argument("-d", "--debug", help="Run in debug mode", action="store_true", default=False)
-    args = parser.parse_args()
-    app.debug = args.debug
-
-    app.run(host="0.0.0.0")
-
+@sockets.route('/diff')
+def diff_socket(ws):
+    while not ws.closed:
+        message = ws.receive()
+        print message
+        ws.send("Hi from the server, you said '{}'".format(message))
+
+@werkzeug.serving.run_with_reloader
+def runServer():
+    from gevent import pywsgi
+    from geventwebsocket.handler import WebSocketHandler
+    app.debug = True
+    ws = pywsgi.WSGIServer(('', 5000), app, handler_class=WebSocketHandler)
+    ws.serve_forever()
 

server/static/poll.js

@@ -1,6 +1,6 @@
 
 function poll() {
-    var ws = new WebSocket("ws://localhost:5000/echo");
+    var ws = new WebSocket("ws://localhost:5000/diff");
     ws.onopen = function()
     {
        // Web Socket is connected, send data using send()