1. API reference
  2. Welcome
    1. Component overview
    2. Quickstart
    3. System requirements
    4. Troubleshooting
    5. Managing license keys
  3. Connecting to Data Source
    1. JSON
      1. Connecting to JSON
      2. Data types in JSON
    2. CSV
      1. Connecting to CSV
      2. Connecting to CSV using Compressor
      3. Data types in CSV
    3. Database
      1. Connecting to SQL databases
      2. Connecting to other databases
      3. Connecting to database with .NET
      4. Connecting to database with .NET Core
      5. Connecting to database with Java
      6. Connecting to database with PHP
    4. Microsoft Analysis Services
      1. Connecting to Microsoft Analysis Services
      2. Getting started with Accelerator
      3. Installing Accelerator as a Windows Service
      4. Referring Accelerator as a DLL
      5. Configuring authentication process
      6. Configuring secure HTTPS connection
      7. Troubleshooting
    5. Pentaho Mondrian
      1. Connecting to Pentaho Mondrian
      2. Getting started with Accelerator
      3. Configuring Mondrian roles
      4. Сonfiguring username/password protection
      5. Сonfiguring secure HTTPS connection
      6. Troubleshooting
    6. icCube
  4. Configuring report
    1. What is a report
    2. Data source
    3. Slice
    4. Options
    5. Number formatting
    6. Conditional formatting
    7. Set report to the component
    8. Get report from the component
    9. Date and time formatting
    10. Configuring global options
    11. Export and print
    12. Calculated values
    13. Custom sorting
  5. Integration with frameworks
    1. Available tutorials
    2. Integration with AngularJS (v1.x)
    3. Integration with Angular
    4. Integration with React
    5. Integration with Webpack
    6. Integration with ASP.NET
    7. Integration with jQuery
    8. Integration with JSP
    9. Integration with TypeScript
    10. Integration with RequireJS
    11. Integration with PhoneGap
  6. Integration with charts
    1. Integration with Highcharts
    2. Integration with Google Charts
    3. Integration with FusionCharts
    4. Integration with any charting library
  7. Customizing
    1. Customizing toolbar
    2. Customizing appearance
    3. Localizing component
  8. Updating to the latest version
    1. Updating to the latest version
    2. Release notes
    3. Migration guide from 2.4 to 2.5
    4. Migration guide from 2.3 to 2.4
    5. Migration guide from 2.2 to 2.3
  9. Older Versions
    1. Documentation 2.3
    2. Documentation 2.2
    3. API reference - Flex
Table of contents

Connecting to CSV using Compressor

In the previous article we described how to connect your web pivot table to CSV data source. To gain even better performance while working with CSV datasets you can use Flexmonster Data Compressor. It is a special server-side compression tool that was developed by our team. Data Compressor helps you to increase data loading speed from server to customer’s browser.

Data Compressor is available for .NET, .NET Core, Java, and PHP. The following steps will help you with the process of connecting to CSV using Compressor.

Step 1: Embed the component into your web page

You already have an empty component in your HTML page. If Flexmonster Component is not embedded – return to Quickstart. Your code should look like the following example:

<div id="pivotContainer">The component will appear here</div>
<script src="flexmonster/flexmonster.js"></script>
<script>
	var pivot = new Flexmonster({
		container: "pivotContainer",
		toolbar: true,
		licenseKey: "XXXX-XXXX-XXXX-XXXX-XXXX"
	});
</script>

Step 2: Setup Data Compressor on the server

Follow the instructions for the technology you use
Setup Data Compressor .NET

First of all, you need to add Flexmonster.Compressor.dll to your project. It is located in Pivot Table for CSV/compressor/.net/ folder of your downloaded package. Please note, you need to have Microsoft .NET Framework 4 or higher.

The following line of code will convert your CSV file to compressed Stream:

Stream inputStream = Flexmonster.Compressor.Compressor.CompressFile("data.csv");

Please check that you have specified the correct path to your CSV file. Now, you can create a response from the Stream. The following sample shows how to create a streaming response. It means that the end user will get the response almost without delay and server will use less amount of memory:

HttpResponseMessage response = Request.CreateResponse();
response.Content =
    new PushStreamContent((Stream outputStream, HttpContent content, 
                           TransportContext context) =>
    {
        int length = 0;
        byte[] buffer = new byte[10240];
        while ((count = inputStream.Read(buffer, 0, buffer.Length)) > 0)
        {
            outputStream.Write(buffer, 0, length);
            outputStream.Flush();
        }
        outputStream.Close();
    }, new MediaTypeHeaderValue("text/plain")
);

The full project is available at the Pivot Table for CSV/compressor/.net/ inside download package.

Setup Data Compressor .NET Core

To install Flexmonster Compressor please download it on nuget.org or run the following command in the Package Manager Console:

Install-Package Flexmonster.Compressor

Please note, you need to have Microsoft .NET Core.

Then add the line of code that will convert your CSV file to compressed Stream:

Stream inputStream = Compressor.CompressFile("data.csv");

Please check that you have specified the correct path to your CSV file. Now, you can create a response from the Stream. For simple cases, it is enough to read all content:

StreamReader reader = new StreamReader(inputStream);
string output = reader.ReadToEnd();
Setup Data Compressor Java

First of all, you need to add flexmonster-compressor.jar to your project. It is located in Pivot Table for CSV/compressor/java/ folder of your downloaded package. Please note, you need to have Java 7 or higher.

The following line of code will convert your CSV file to compressed InputStream:

InputStream inputStream = Compressor.compressFile("data.csv");

Please check that you have specified the correct path to your CSV file. Now, you can create a response from the InputStream. The following sample shows how to create a streaming response. It means that the end user will get the response almost without delay and server will use less amount of memory:

response.setContentType("text/plain");
OutputStream outputStream = response.getOutputStream();
int length = 0;
byte[] buffer = new byte[10240];
while ((length = inputStream.read(buffer)) > 0) {
    outputStream.write(buffer, 0, length);
    outputStream.flush();
}

The full project is available at the Pivot Table for CSV/compressor/java/ inside download package.

Setup Data Compressor PHP

First of all, you need to add flexmonster-compressor.php to your project. It is located in Pivot Table for CSV/compressor/php/ folder of your downloaded package:

require_once("flexmonster-compressor.php");

Please note, you need to have PHP 5.3+ (earlier versions may work, but not tested).

The following line of code will start streaming your compressed CSV file:

Compressor::compressFile("data.csv");

Please check that you have specified the correct path to your CSV file. The full project is available at the Pivot Table for CSV/compressor/php/ inside download package.

Step 3: Enable cross-origin resource sharing (CORS).

By default, browser prevents JavaScript from making requests across domain boundaries. CORS allows web applications to make cross-domain requests. Here are some useful links explaining how to setup CORS on different types of servers:

header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods', 'OPTIONS,GET,PUT,POST,DELETE');
header('Access-Control-Allow-Headers', 'Content-Type');

Step 4: Configure report with your own data

Now it’s time to configure Flexmonster Pivot Component on the web page. Let’s create a minimal report for this (replace filename and other parameters with your specific values):

var pivot = new Flexmonster({
	container: "pivotContainer",
	toolbar: true,
	report: {
		dataSource: {
			dataSourceType: "ocsv",
			/* URL to the Data Compressor .NET */
			filename: "http://localhost:55772/api/flexmonster/get"

			/* URL to the Data Compressor Java */
			//filename: "http://localhost:8400/FlexmonsterCompressor/get"

			/* URL to the Data Compressor PHP */
			//filename: "http://localhost/demo-compress-mysql.php"
		}
	},
	licenseKey: "XXXX-XXXX-XXXX-XXXX-XXXX"
});

Launch the web page from browser — here you go! A pivot table is embedded into your project.