FileStorageAppComponent

Required to implement a file-storage component. File storage writes a file from to remote source such as a remote file system (FTP) or a SaaS application.

Source: Github

Example:

package my.org.components;

import io.dexi.service.AppContext;
import io.dexi.service.components.AppComponent;
import io.dexi.service.components.FileStorageAppComponent;
import io.dexi.service.exceptions.UserErrorException;
import org.apache.commons.io.IOUtils;

import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

@AppComponent("write-file-to-my-app")
public class MyAppFileStorageAppComponent implements FileStorageAppComponent<MyAppConfig, MyComponentConfig> {

    @Override
    public Class<MyComponentConfig> getComponentConfigClass() {
        return MyComponentConfig.class;
    }

    @Override
    public void write(AppContext<MyAppConfig, MyComponentConfig> ctxt, HttpServletRequest request) {
        File file = new File("some-file.txt");

        try(OutputStream out = new FileOutputStream(file)) {
            IOUtils.copyLarge(request.getInputStream(), out);
        } catch (IOException e) {
            throw new UserErrorException("Failed to read file" ,e );
        }
    }
}

components:
- name: write-file-to-my-app
  type: file-storage
  title: Write a file to my app
  specification:
    endpoint: # Will invoke MyAppFileStorageAppComponent::write
      url: "${baseUrl}/dexi/file/storage/write"
      method: POST