WIP: continuous monitoring support

README.md

@@ -2,7 +2,7 @@
 
 [![Join the chat at https://gitter.im/nupic-community/nupic.visualizations](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/nupic-community/nupic.visualizations?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
-Work with NuPIC results interactively in a [nice web UI](https://nupic-visualizations.firebaseapp.com/). This app is designed to consume and render CSV files output by NuPIC, but it can read any CSV file with numerical data that has a timestamp as one of its fields.
+Work with NuPIC results interactively in a [nice web UI](https://nupic-visualizations.firebaseapp.com/). This app is designed to consume and render CSV files output by NuPIC, but it can read any CSV file with numerical data that represent some time-series. 
 
 ![NuPIC Visualizations screenshot](https://raw.githubusercontent.com/wiki/nupic-community/nupic.visualizations/images/nupic_visualizations.png)
 
@@ -56,6 +56,7 @@ There are demo files in `examples/` for NuPIC OPF, NAB and generic CSV files.
 
  * Select a local file by clicking 'Browse...', this will start rendering a new graph. 
   * You may get warning/error labels, that can be closed.
+  * You can also enter a URL of a remote file for streaming (in supported by the server). 
  * To zoom in on the graph, click and drag with the cursor. To zoom out, double-click. To pan on a zoomed graph, hold the ALT key (on Linux, hold the SHIFT key), while dragging the cursor.
  * The options to the right of the graph allow the user to:
   - Set the visibility of certain series
@@ -67,7 +68,7 @@ There are demo files in `examples/` for NuPIC OPF, NAB and generic CSV files.
 The goals of this project are:
 * nice, convenient & easy to use interactive graph visualizations
 * seamlessly runs everywhere (in web-browser, or [cloud](https://nupic-visualizations.firebaseapp.com/))
-* plot as much as possible - generic CSV
+* plot as much as possible - generic CSV (local or remote files)
  * tries to parse timestamp/x-data from many formats
  * no restrictions on the header format
  * can plot even non-standart data - strings (planned)

build/index.html

@@ -28,11 +28,11 @@
                 <div class="input-group">
                   <input type="text" class="form-control file-name" ng-model="view.filePath">
                   <span class="input-group-btn">
-                    <button class="btn btn-default" type="button" ng-disabled="!canDownload()" ng-click="getRemoteFile()">Download</button>
+                    <button class="btn btn-default" type="button" ng-disabled="!canDownload()" ng-click="loadFile(null)">Download</button>
                   </span>
                 </div>
                 <span class="btn btn-primary btn-file">
-                  Browse&hellip; <input type="file" file-upload-change="getLocalFile">
+                  Browse&hellip; <input type="file" file-upload-change="loadFile">
                 </span>
                 <div class="errors">
                   <div ng-repeat="error in view.errors track by $index" class="alert alert-{{error.type}} alert-dismissible" role="alert">

client/src/app/appConfig.js

@@ -32,11 +32,18 @@ angular.module('app').constant('appConfig', {
   // -1 to disable the functionality (can cause performance problems on large files/online monitoring)
   MAX_FILE_SIZE : 60*1024*1024,
   // LOCAL_CHUNK_SIZE:
+  // in Bytes
   // size in bytes of each chunk for the data stream, when reading local files
-  LOCAL_CHUNK_SIZE : 65536,
+  LOCAL_CHUNK_SIZE : 2*1024*1024,
   // REMOTE_CHUNK_SIZE:
-  // size in bytes of each chunk for the data stream, when reading files over a network. Not currently used.
+  // in Bytes
+  // size in bytes of each chunk for the data stream, when reading files over a network.
   REMOTE_CHUNK_SIZE : 65536,
+  // POLLING_INTERVAL:
+  // time interval (in ms) after which the source file is re-read to find possible updates. 
+  // A value <= 0 means polling is disabled - nothing else happens after the end of the file is reached. 
+  // Default: 0
+  POLLING_INTERVAL : 5000,
   // HIGHLIGHT_RADIUS:
   // radius of threshold highlight from point in time that reaches the threshold.
   // modifies (together with color/opacity) how visible the highlight is.