/*
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* Copyright 2013 gitblit.com.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.gitblit.dagger;
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import javax.servlet.ServletContext;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import dagger.ObjectGraph;
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/**
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* Uses Dagger to manually inject dependencies into a servlet.
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* This class is useful for servlet containers that offer CDI and are
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* confused by Dagger.
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*
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* @author James Moger
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*
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*/
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public abstract class DaggerServlet extends HttpServlet {
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private static final long serialVersionUID = 1L;
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@Override
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public final void init() throws ServletException {
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ServletContext context = getServletContext();
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ObjectGraph objectGraph = (ObjectGraph) context.getAttribute(DaggerContext.INJECTOR_NAME);
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inject(objectGraph);
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}
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protected abstract void inject(ObjectGraph dagger);
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}
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