Install the DEE

Import the DEE library

The DEE dependency must be included in the project’s POM.

Local CSV Extract
InMemory Extract

<!-- CSV data extraction support -->
<dependency>
    <groupId>com.activeviam.io</groupId>
    <artifactId>data-extraction-engine</artifactId>
    <version>${atoti.server.version}</version>
</dependency>

<!-- In-Memory data extraction support -->
<dependency>
    <groupId>com.activeviam.io</groupId>
    <artifactId>data-connectors-core</artifactId>
    <version>${atoti.server.version}</version>
</dependency>

Set the required properties

The external properties are retrieved using the Spring @Value mechanism. For it to work, the following code must be included in the main Spring Config class.

@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
	final PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer = new PropertySourcesPlaceholderConfigurer();
	propertySourcesPlaceholderConfigurer.setIgnoreUnresolvablePlaceholders(true);
	return propertySourcesPlaceholderConfigurer;
}

Here is a list of the required properties.

Importing configurations

The DEE library provides the necessary Spring Config files to enable the DEE, so no additional configuration is required.

All-in-one configuration

All config files can be added by adding the target-specific configuration to the application’s Spring Config. These config files contain all config files needed for DEE.

Output	Configuration Class
Local CSV File	`CsvDataExtractionEngineConfig.class`
In Memory	`InMemoryDataExtractionEngineConfig.class`

Example of what an application config should look like:

@Configuration
@Import({
		// Import the Output-Specific Data Extraction Engine
		CsvDataExtractionEngineConfig.class
})
public class ApplicationConfig {
    //...
}

Individual configuration files

Optionally, users can import specific configs. The following are the configs for the CSV target:

CSV Specific Implementation	Description
`CsvDataExtractionServicesConfig`	Registers the services for the Data Extraction Engine (`ILocalDataExtractionService`) and Enhanced Drillthrough `ILocalEnhancedDrillthroughService`
`CsvDataExtractionRestServicesConfig`	Exposes the services so they can be accessed using REST (work in progress).

Install and start

User guide

Customizations

Import the DEE library

Set the required properties

Importing configurations

All-in-one configuration

Individual configuration files

​Import the DEE library

​Set the required properties

​Importing configurations

​All-in-one configuration

​Individual configuration files

Import the DEE library

Set the required properties

Importing configurations

All-in-one configuration

Individual configuration files