com.google.gerrit.httpd.GuiceRequestScopePropagator Maven / Gradle / Ivy
// Copyright (C) 2012 The Android Open Source Project
//
// 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.google.gerrit.httpd;
import com.google.gerrit.server.RemotePeer;
import com.google.gerrit.server.config.CanonicalWebUrl;
import com.google.gerrit.server.util.RequestScopePropagator;
import com.google.gerrit.server.util.ThreadLocalRequestContext;
import com.google.inject.Inject;
import com.google.inject.Key;
import com.google.inject.Provider;
import com.google.inject.servlet.ServletScopes;
import com.google.inject.util.Providers;
import com.google.inject.util.Types;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.net.SocketAddress;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Callable;
import javax.servlet.http.HttpServletRequest;
/** Propagator for Guice's built-in servlet scope. */
public class GuiceRequestScopePropagator extends RequestScopePropagator {
private final HttpCanonicalWebUrlProvider urlProvider;
private final SocketAddress peer;
private final Provider request;
@Inject
GuiceRequestScopePropagator(
HttpCanonicalWebUrlProvider urlProvider,
@RemotePeer Provider remotePeerProvider,
ThreadLocalRequestContext local,
Provider request) {
super(ServletScopes.REQUEST, local);
this.urlProvider = urlProvider;
this.peer = remotePeerProvider.get();
this.request = request;
// Ensure HttpServletRequest is propagated to HttpCanonicalWebUrlProvider
// so that it won't fallback to the default host name.
urlProvider.setHttpServletRequest(request);
}
/** @see RequestScopePropagator#wrap(Callable) */
// ServletScopes#continueRequest is deprecated, but it's not obvious their
// recommended replacement is an appropriate drop-in solution; see
// https://gerrit-review.googlesource.com/83971
@SuppressWarnings("deprecation")
@Override
protected Callable wrapImpl(Callable callable) {
Map, Object> seedMap = new HashMap<>();
String canonicalWebUrl = urlProvider.get();
// Request scopes appear to use specific keys in their map, instead of only
// providers. Add bindings for both the key to the instance directly and the
// provider to the instance to be safe.
seedMap.put(
Key.get(typeOfProvider(String.class), CanonicalWebUrl.class),
Providers.of(canonicalWebUrl));
seedMap.put(Key.get(String.class, CanonicalWebUrl.class), canonicalWebUrl);
seedMap.put(Key.get(typeOfProvider(SocketAddress.class), RemotePeer.class), Providers.of(peer));
seedMap.put(Key.get(SocketAddress.class, RemotePeer.class), peer);
Key webSessionAttrKey = Key.get(WebSession.class);
Object webSessionAttrValue = request.get().getAttribute(webSessionAttrKey.toString());
seedMap.put(webSessionAttrKey, webSessionAttrValue);
seedMap.put(Key.get(typeOfProvider(WebSession.class)), Providers.of(webSessionAttrValue));
return ServletScopes.continueRequest(callable, seedMap);
}
private ParameterizedType typeOfProvider(Type type) {
return Types.newParameterizedType(Provider.class, type);
}
}