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Code Issues Releases Activity

Handle (and ignore) http server downtime

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Tim203
2021-07-06 12:00:36 +02:00
parent 0216b6d798
commit fe85451fe4
1 changed files with 25 additions and 11 deletions
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36
common/src/main/java/org/geysermc/floodgate/util/HttpUtils.java
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@@ -37,21 +37,19 @@ import java.util.concurrent.Executors;
import lombok.AccessLevel;
import lombok.AllArgsConstructor;
import lombok.Getter;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
@SuppressWarnings("all")
// resources are properly closed and ignoring the original stack trace is intended
@SuppressWarnings({"PMD.CloseResource", "PMD.PreserveStackTrace"})
public class HttpUtils {
private static final ExecutorService EXECUTOR_SERVICE = Executors.newSingleThreadExecutor();
private static final Gson GSON = new Gson();
private static final String USER_AGENT = "GeyserMC/Floodgate";
private static final String CONNECTION_STRING = "--";
private static final String BOUNDARY = "******";
private static final String END = "\r\n";
public static CompletableFuture<DefaultHttpResponse> asyncGet(String urlString) {
return CompletableFuture.supplyAsync(() -> {
return get(urlString);
}, EXECUTOR_SERVICE);
return CompletableFuture.supplyAsync(() -> get(urlString), EXECUTOR_SERVICE);
}
public static DefaultHttpResponse get(String urlString) {
@@ -83,8 +81,14 @@ public class HttpUtils {
return connection;
}
private static <T> HttpResponse<T> readResponseSilent(HttpURLConnection connection, Class<T> clazz) {
@NonNull
private static <T> HttpResponse<T> readResponseSilent(
HttpURLConnection connection,
Class<T> clazz) {
InputStreamReader streamReader = createReader(connection);
if (streamReader == null) {
return new HttpResponse<>(-1, null);
}
try {
int responseCode = connection.getResponseCode();
@@ -100,8 +104,12 @@ public class HttpUtils {
}
}
@NonNull
private static DefaultHttpResponse readDefaultResponse(HttpURLConnection connection) {
InputStreamReader streamReader = createReader(connection);
if (streamReader == null) {
return new DefaultHttpResponse(-1, null);
}
try {
int responseCode = connection.getResponseCode();
@@ -117,8 +125,9 @@ public class HttpUtils {
}
}
@Nullable
private static InputStreamReader createReader(HttpURLConnection connection) {
InputStream stream = null;
InputStream stream;
try {
stream = connection.getInputStream();
} catch (Exception exception) {
@@ -128,7 +137,12 @@ public class HttpUtils {
throw new RuntimeException("Both the input and the error stream failed?!");
}
}
return new InputStreamReader(stream);
// it's null for example when it couldn't connect to the server
if (stream != null) {
return new InputStreamReader(stream);
}
return null;
}
@Getter
@@ -139,7 +153,7 @@ public class HttpUtils {
}
public static final class DefaultHttpResponse extends HttpResponse<JsonObject> {
private DefaultHttpResponse(int httpCode, JsonObject response) {
DefaultHttpResponse(int httpCode, JsonObject response) {
super(httpCode, response);
}
}