OracleTelegramBot.java

package com.oracle.dev.jdbc;

import org.eclipse.microprofile.config.inject.ConfigProperty;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;
import jakarta.enterprise.context.ApplicationScoped;
import jakarta.json.JsonObject;
import jakarta.ws.rs.client.Client;
import jakarta.ws.rs.client.ClientBuilder;
import jakarta.ws.rs.client.WebTarget;
import jakarta.ws.rs.core.Response;

@ApplicationScoped
public class OracleTelegramBot {

	private static final Logger logger = LoggerFactory.getLogger(OracleTelegramBot.class);

	@ConfigProperty(name = "telegram.token")
	private String token;

	@ConfigProperty(name = "telegram.chatId")
	private String chatId;

	private Client client;
	private WebTarget baseTarget;

	public void sendMessage(String message) {
		Response response = baseTarget.path("sendMessage").queryParam("chat_id", chatId).queryParam("text", message)
				.request().get();
		JsonObject json = response.readEntity(JsonObject.class);
		boolean ok = json.getBoolean("ok", false);
		if (!ok) {
			logger.error("Send message failed!");
		}
	}

	@PostConstruct
	void initClient() {
		client = ClientBuilder.newClient();
		baseTarget = client.target("https://api.telegram.org/bot{token}").resolveTemplate("token", this.token);
	}

	@PreDestroy
	private void closeClient() {
		client.close();
	}

}