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WebSocketClient.java
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WebSocketClient.java
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package org.genericsystem.remote;
import java.lang.invoke.MethodHandles;
import java.util.concurrent.CompletableFuture;
import org.genericsystem.common.GSVertx;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.http.HttpClient;
import io.vertx.core.http.HttpClientOptions;
import io.vertx.core.http.WebSocket;
/**
* @author Nicolas Feybesse
*
*/
class WebSocketClient {
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private final HttpClient httpClient;
private CompletableFuture<WebSocket> webSocketPromise = new CompletableFuture<>();
public WebSocketClient(FrontEnd client, String host, int port, String path) {
httpClient = GSVertx.vertx().getVertx().createHttpClient(new HttpClientOptions().setDefaultPort(port).setDefaultHost(host != null ? host : HttpClientOptions.DEFAULT_DEFAULT_HOST));
webSocketPromise = getOpenPromise(client, path);
}
protected <T> void send(Buffer buffer) {
webSocketPromise.thenAccept(webSocket -> webSocket.writeBinaryMessage(buffer));
}
protected <T> CompletableFuture<WebSocket> getOpenPromise(FrontEnd client, String path) {
CompletableFuture<WebSocket> promise = new CompletableFuture<>();
httpClient.websocket(path, webSock -> {
webSock.exceptionHandler(e -> {
promise.completeExceptionally(e);
});
webSock.handler(client.getHandler());
promise.complete(webSock);
});
return promise;
}
public void close() {
try {
webSocketPromise.thenAccept(webSocket -> webSocket.close());
logger.info("Close socket");
} catch (Exception ignore) {
}
try {
httpClient.close();
logger.info("Close httpClient");
} catch (Exception ignore) {
}
}
}