-
Notifications
You must be signed in to change notification settings - Fork 0
pavandaga/Weather
Folders and files
| Name | Name | Last commit message | Last commit date | |
|---|---|---|---|---|
Repository files navigation
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Frameset//EN">
<!-- $Copyright(c) 2008 Progress Software Corporation. All rights reserved.$ -->
<!-- $Copyright (c) 2013 Software AG, Darmstadt, Germany and/or Software AG USA Inc., Reston, VA, USA, and/or its subsidiaries and/or its affiliates and/or their licensors.$ -->
<!-- Use, reproduction, transfer, publication or disclosure is prohibited except as specifically provided for in your License Agreement with Software AG -->
<html>
<head>
<meta http-equiv="content-type" content=
"text/html; charset=windows-1252">
<title>
Weather Demo
</title>
<style type="text/css">
BODY {
background-color: #ffffff;
font-size: 10pt;
font-family: Arial, Helvetica, sans-serif
margin-top: 0 pt;
margin-bottom: 0 pt;
}
H1 {
text-align: left;
font-weight: bold;
background-color: Transparent;
border-bottom-style: None;
margin-top: 0pt;
font-size: 16pt;
font-family: Arial, Helvetica, sans-serif;
line-height: Normal;
margin-bottom: 13.5pt;
}
H2 {
text-align: left;
font-weight: bold;
font-size: 14pt;
font-family: Arial, Helvetica, sans-serif;
margin-top: 0pt;
margin-bottom: 0pt;
color: #000000;
}
H3 {
text-align: left;
font-weight: bold;
font-family: Arial, Helvetica, sans-serif;
margin-left: 0pt;
margin-right: 0pt;
margin-top: 0pt;
margin-bottom: 0pt;
font-size: 12pt;
}
P {
text-align: left;
font-size: 10pt;
font-family: Arial, Helvetica, sans-serif;
margin-left: 0pt;
margin-top: 5pt;
margin-bottom: 5pt;
}
LI {
text-align: left;
font-size: 10pt;
font-family: Arial, Helvetica, sans-serif;
margin-left: 0pt;
margin-top: 5pt;
margin-bottom: 5pt;
}
TD {
font-size: 10pt;
font-family: Arial, Helvetica, sans-serif;
margin-left: 0pt;
margin-top: 5pt;
margin-bottom: 5pt;
}
TH {
font-size: 10 pt;
font-family: Arial, Helvetica, sans-serif;
margin-left: 0pt;
margin-top: 5pt;
margin-bottom: 5pt;
background-color: #E1E1E1;
}
</style>
</head>
<body>
<p>
<img alt="Apama" src="readme_files/Apama_logo.png">
</p>
<h1>
The Weather Demo
</h1>
<p>
This demo provides an example of a dashboard for viewing DataViews
created with MonitorScript and for interacting with DataViews with the
dashboard Send Event command. It shows simulated weather metrics for a
small number of cities.
</p>
<p>
A single MonitorScript file and a single dashboard file define the
behavior of this demo.
</p>
<p>
The Weather.mon file defines a DataView and the simulation behavior to
provide random values for each city. It defines a list of initial
locations in the <strong>locations</strong> variable: London, New
York, Tokyo and Sydney. For each location it simulates temperature,
humidity and visibility. Interactions with this monitor are through
<strong>AddLocation</strong> and <strong>DeleteLocation</strong>
events, sent by the dashboard.
</p>
<p>
The Weather demo contains the following files:
</p>
<ul>
<li>
<strong>Dashboards</strong>
<ul>
<li>
<code>Weather.rtv</code> — The main display panel that
shows all values for all locations. It also sends events to
the correlator to add and delete locations.
</li>
</ul>
</li>
<li>
<strong>MonitorScript</strong>
<ul>
<li>
<code>Weather.mon</code> — Defines a DataView and
simple simulator behavior for weather data, and bootstraps
this for a number of cities.
</li>
</ul>
</li>
</ul>
<h3>
Suggested Modifications to the Weather Demo
</h3>
<p>
To add a metric for wind speed to the statistics:
</p>
<ol>
<li>
Open the Weather.mon file.
</li>
<li>
Add a new column to the <strong>DataView</strong> by adding a new
entry to the <strong>fieldNames</strong> and
<strong>fieldTypes</strong> parameters. The new entry is
<strong>windspeed</strong>, of type <strong>integer</strong>:<br>
<br>
<table border="0" cellpadding="8" cellspacing="0" width="100%">
<tr>
<td bgcolor="E1E1E1">
<code>add.fieldNames :=
["location","temperature","humidity","visibility",”<font
color=
"maroon"><strong>windspeed</strong></font>”];</code>
<br>
<code>add.fieldTypes :=
["string","integer","integer","integer",”<font
color=
"maroon"><strong>integer</strong></font>”];</code>
</td>
</tr>
</table>
</li>
<li>
In the <strong>locationHandler</strong> action, add a new local
variable, <strong>windspeed</strong>, of type
<strong>integer</strong>
</li>
<li>
Provide a new random value for <strong>windspeed</strong> (between
1 and 20) just below the assignment for
<strong>visibility</strong>, for example:<br>
<br>
<table border="0" cellpadding="8" cellspacing="0" width="100%">
<tr>
<td bgcolor="E1E1E1">
<code>random := 20;</code><br>
<code>windspeed := 1 + random.rand();</code>
</td>
</tr>
</table>
</li>
<li>
In the definition of the new <strong>DataView</strong> item, add
the new value for the <strong>windspeed</strong> at the end, for
example:<br>
<br>
<table border="0" cellpadding="8" cellspacing="0" width="100%">
<tr>
<td bgcolor="E1E1E1">
<code>item.fieldValues :=
[location,temp.toString(),humidity.toString(),visibility.toString(),<font
color=
"maroon"><strong>windspeed.toString()</strong></font>];</code>
</td>
</tr>
</table>
</li>
<li class="MsoNormal">
Near the bottom of the file is a repetitive timer, <strong>on all
wait (5.0)</strong>, which updates the values for this location
every five seconds. To update the value for windspeed with a new
random number, add the following code that mirrors the pattern that
already exists for the other metrics:<br>
<br>
<table border="0" cellpadding="8" cellspacing="0" width="100%">
<tr>
<td bgcolor="E1E1E1">
<code>temp := (temp - 2) + random.rand();<br>
humidity := (humidity - 2) + random.rand();<br>
visibility := (visibility - 2) + random.rand();<br>
<font color="maroon"><strong>windspeed := (windspeed - 2)
+ random.rand();</strong></font></code>
</td>
</tr>
<tr>
<td bgcolor="E1E1E1">
<code>if (temp < 0)
{temp := 0;}<br>
if (humidity < 0) {humidity :=
0;}<br>
if (visibility < 0) {visibility := 0;}<br>
<font color="maroon"><strong>if (windspeed < 0) then
{windspeed := 0;}</strong></font></code>
</td>
</tr>
<tr>
<td bgcolor="E1E1E1">
<code>if (temp >
99) {temp :=
99;}<br>
if (humidity > 99) {humidity :=
99;}<br>
if (visibility > 99) {visibility := 99;}<br>
<font color="maroon"><strong>if (windspeed > 99) then
{windspeed := 99;}</strong></font></code>
</td>
</tr>
</table>
</li>
<li>
Append the new value to the update field values near the bottom of
the file:<br>
<br>
<table border="0" cellpadding="8" cellspacing="0" width="100%">
<tr>
<td bgcolor="E1E1E1">
<code>update.fieldValues :=
[location,temp.toString(),humidity.toString(),visibility.toString()<font
color=
"maroon">,<strong>windspeed.toString()</strong>];</font></code>
</td>
</tr>
</table>
</li>
<li>
Save the file and restart the project.
</li>
<li>
Open <code>Weather.rtv</code> in Apama Dashboard Builder.
</li>
<li>
Select the <strong>Weather Conditions Sample</strong> table at the
top of the dashboard. In the <strong>Data</strong> section, either
double-click or right-click the <strong>valueTable</strong>
property and select <strong>Attach toData > APAMA</strong>. In
the <strong>Attach to Apama</strong> dialog that opens, click
<strong>...</strong> next to the <strong>Display variables</strong>
field. In the <strong>Select Columns</strong> dialog that opens,
select the <strong>windspeed</strong> value from the
<strong>Available Columns</strong> on the left, and click
<strong>Add</strong> to move it into the <strong>Selected
Columns</strong> on the right. Click <strong>OK</strong> to close
this dialog, then click <strong>OK</strong> again to close the
Attach to Apama dialog. Observe that the Weather Conditions Sample
table now shows the windspeed for each location in the table.
</li>
<li>
Select one of the large colored rectangles (for example, the red
<strong>temperature</strong>). Copy the rectangle (use the context
menu or CTRL-C to make a copy). Paste this copy below the Apama
logo. Click in the new rectangle, then double-click (or right-click
and select <strong>Attach toData > APAMA</strong>) the
<strong>valueString</strong> property. In the <strong>Display
variables</strong> field of the <strong>Attach to Apama</strong>
dialog, select <strong>windspeed</strong> instead of
<strong>temperature</strong>. Click <strong>OK</strong>.
</li>
<li>
Reload the dashboard in the Dashboard Viewer.
</li>
</ol>
<p>
Observe that the dashboard now displays windspeed values for each
location.
</p>
<p>
</p>
</body>
</html>
About
No description, website, or topics provided.
Resources
Stars
Watchers
Forks
Releases
No releases published
Packages 0
No packages published