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This tutorial is based on Maven and requires the use of the Arondor Artifactory in which the FlowerDocs libraries are implemented. If you are extern to Arondor, please ask the FlowerDocs support to get the mentioned librairies.

When you have completed this training module, you will be able to develop a secure OperationHook to respond to the creation of documents and rename them automatically.

Project creation

Using your favorite IDE, start by creating a new Maven project with the following POM:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	&lt;modelVersion&gt;4.0.0</modelVersion>

    &lt;groupId&gt;com.flower.docs.samples</groupId>
    &lt;artifactId&gt;modify-operation-hook</artifactId>
    &lt;version&gt;0.0.1-SNAPSHOT</version>

	&lt;dependencies&gt;
		&lt;dependency&gt;
			&lt;groupId&gt;com.flower.docs</groupId>
			&lt;artifactId&gt;flower-docs-starter-client</artifactId>
			&lt;version&gt;2025.3.0</version>
		</dependency>
	</dependencies>

	&lt;build&gt;
		&lt;plugins&gt;
			&lt;plugin&gt;
				&lt;groupId&gt;org.springframework.boot</groupId>
				&lt;artifactId&gt;spring-boot-maven-plugin</artifactId>
				&lt;version&gt;2.7.18</version>
				&lt;executions&gt;
					&lt;execution&gt;
						&lt;goals&gt;
							&lt;goal&gt;repackage</goal>
							&lt;goal&gt;build-info</goal>
						</goals>
					</execution>
				</executions>
				&lt;configuration&gt;
					&lt;executable&gt;true</executable>
				</configuration>
			</plugin>
		</plugins>
	</build>
</project>

# Spring Boot application

This Spring Boot application is based on the [Spring Boot starter](/docs/flowerdocs/apis/core/java) provided by FlowerDocs.

* To start with, we need a _main class_ Spring Boot annotated with the `@SpringBootApplication` annotation:


package com.flower.samples;

```javascript
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import com.flower.docs.FlowerDocsClient;
import com.flower.docs.SecurityMode;

@SpringBootApplication @FlowerDocsClient(security = SecurityMode.USER) public class ModifyHookApplication


    public static void main(String[] args)

        SpringApplication.run(ModifyHookApplication.class, args);


  • Then add the application.properties file to your project's src/main/resources directory to configure the application:
spring.application.name=modify-hook
server.port=7777
server.servlet.context-path=/modify

ws.url=http://localhost:8081/core/services

internal.realm.users[0].id=<user>
internal.realm.users[0].password=<password>

1 Spring Boot application name

2 Port used to expose WEB application

3 Application path. The application can be accessed via the basic URL http://localhost:7777/modify

5 URL for accessing the web services exposed by FlowerDocs Core.

7 User identifier for accessing the OperationHook.

8 User password for accessing the OperationHook

Hook development

Now we move on to Operation Hook! To implement your first hook, create a ModifyOperationHook class such as:

package com.flower.samples;

import org.springframework.web.bind.annotation.RestController;
import org.terracotta.statistics.Time;
import com.flower.docs.domain.component.Component;
import com.flower.docs.domain.exception.FunctionalException;
import com.flower.docs.domain.exception.TechnicalException;
import com.flower.docs.operation.api.DefaultComponentOperationContext;
import com.flower.docs.operation.api.OperationContext;
import com.flower.docs.operation.api.OperationHook;

@RestController public class ModifyOperationHook extends OperationHook


    @Override
    public void process(OperationContext context) throws TechnicalException, FunctionalException

        if (context instanceof DefaultComponentOperationContext)

            DefaultComponentOperationContext componentContext = (DefaultComponentOperationContext) context;
            for (Component component : componentContext.getComponents())

                component.setName(component.getName() + "_" + Time.absoluteTime());




13 The @RestController annotation defines the hook as a REST web service exposed on /

14 The ModifyOperationHook class extends the OperationHook class, making it easier to implement a hook using the Spring Boot framework

17 The process method must be implemented to define the behavior following the execution of an operation within FlowerDocs Core

17 TheOperationHook reacts only to DefaultComponentOperationContext class contexts

24 Each component of the operating context is renamed using the current date

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