/
AbstractAppEngineFlowServlet.java
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/
AbstractAppEngineFlowServlet.java
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/*
* Copyright (c) 2011 Google 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.google.api.client.extensions.appengine.auth;
import com.google.api.client.extensions.appengine.http.UrlFetchTransport;
import com.google.api.client.extensions.servlet.auth.AbstractFlowUserServlet;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.util.Beta;
/**
* {@link Beta} <br>
* This class fills in some of the unknowns of the generic {@link AbstractFlowUserServlet} with
* reasonable defaults for App Engine. This servlet requires that the App Engine user must be logged
* in to work correctly.
*
* <p>Warning: starting with version 1.7, usage of this for OAuth 2.0 is deprecated. Instead use
* {@link
* com.google.api.client.extensions.appengine.auth.oauth2.AbstractAppEngineAuthorizationCodeServlet}.
*
* <p>Upgrade warning: in version 1.15 there was an implementation of {@link
* #newJsonFactoryInstance()} that used {@code com.google.api.client.json.jackson.GsonFactory},
* but starting with version 1.16 there is no such implementation.
*
* @author moshenko@google.com (Jacob Moshenko)
* @since 1.4
*/
@Beta
public abstract class AbstractAppEngineFlowServlet extends AbstractFlowUserServlet {
private static final long serialVersionUID = 1L;
/**
* Return the user ID of the user that is logged in.
*
* @throws IllegalStateException Thrown when no user is logged in.
*/
@Override
protected String getUserId() {
return AppEngineServletUtils.getUserId();
}
@Override
protected HttpTransport newHttpTransportInstance() {
return new UrlFetchTransport();
}
}