58 lines
2.0 KiB
Java
58 lines
2.0 KiB
Java
/*
|
|
* Copyright (C) 2013 Square, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
package com.squareup.okhttp;
|
|
|
|
import java.io.IOException;
|
|
import java.util.LinkedHashSet;
|
|
import java.util.Set;
|
|
import javax.net.ssl.SSLHandshakeException;
|
|
|
|
/**
|
|
* A blacklist of failed routes to avoid when creating a new connection to a
|
|
* target address. This is used so that OkHttp can learn from its mistakes: if
|
|
* there was a failure attempting to connect to a specific IP address, proxy
|
|
* server or TLS mode, that failure is remembered and alternate routes are
|
|
* preferred.
|
|
*/
|
|
public final class RouteDatabase {
|
|
private final Set<Route> failedRoutes = new LinkedHashSet<Route>();
|
|
|
|
/** Records a failure connecting to {@code failedRoute}. */
|
|
public synchronized void failed(Route failedRoute, IOException failure) {
|
|
failedRoutes.add(failedRoute);
|
|
|
|
if (!(failure instanceof SSLHandshakeException)) {
|
|
// If the problem was not related to SSL then it will also fail with
|
|
// a different TLS mode therefore we can be proactive about it.
|
|
failedRoutes.add(failedRoute.flipTlsMode());
|
|
}
|
|
}
|
|
|
|
/** Records success connecting to {@code failedRoute}. */
|
|
public synchronized void connected(Route route) {
|
|
failedRoutes.remove(route);
|
|
}
|
|
|
|
/** Returns true if {@code route} has failed recently and should be avoided. */
|
|
public synchronized boolean shouldPostpone(Route route) {
|
|
return failedRoutes.contains(route);
|
|
}
|
|
|
|
public synchronized int failedRoutesCount() {
|
|
return failedRoutes.size();
|
|
}
|
|
}
|