content: /**
   * Copyright (C) 2010-2016 eBusiness Information, Excilys Group
   *
   * 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 org.androidannotations.holder;
  
  import static com.helger.jcodemodel.JExpr._super;
  import static com.helger.jcodemodel.JExpr._this;
  import static com.helger.jcodemodel.JMod.PRIVATE;
  import static com.helger.jcodemodel.JMod.PUBLIC;
  import static com.helger.jcodemodel.JMod.STATIC;
  import static org.androidannotations.helper.ModelConstants.generationSuffix;
  
  import javax.lang.model.element.TypeElement;
  
  import org.androidannotations.AndroidAnnotationsEnvironment;
  
  import com.helger.jcodemodel.AbstractJClass;
  import com.helger.jcodemodel.JBlock;
  import com.helger.jcodemodel.JExpr;
  import com.helger.jcodemodel.JFieldVar;
  import com.helger.jcodemodel.JMethod;
  import com.helger.jcodemodel.JVar;
  
  public class EApplicationHolder extends EComponentHolder {
  
  	public static final String GET_APPLICATION_INSTANCE = "getInstance";
  
  	private JFieldVar staticInstanceField;
  
  	public EApplicationHolder(AndroidAnnotationsEnvironment environment, TypeElement annotatedElement) throws Exception {
  		super(environment, annotatedElement);
  		createSingleton();
  		createOnCreate();
  	}
  
  	private void createSingleton() {
  		AbstractJClass annotatedComponent = generatedClass._extends();
  
  		staticInstanceField = generatedClass.field(PRIVATE | STATIC, annotatedComponent, "INSTANCE" + generationSuffix());
  		// Static singleton getter and setter
  		JMethod getInstance = generatedClass.method(PUBLIC | STATIC, annotatedComponent, GET_APPLICATION_INSTANCE);
  		getInstance.body()._return(staticInstanceField);
  
  		JMethod setInstance = generatedClass.method(PUBLIC | STATIC, getCodeModel().VOID, "setForTesting");
  		setInstance.javadoc().append("Visible for testing purposes");
  		JVar applicationParam = setInstance.param(annotatedComponent, "application");
  		setInstance.body().assign(staticInstanceField, applicationParam);
  	}
  
  	private void createOnCreate() {
  		JMethod onCreate = generatedClass.method(PUBLIC, getCodeModel().VOID, "onCreate");
  		onCreate.annotate(Override.class);
  		JBlock onCreateBody = onCreate.body();
  		onCreateBody.assign(staticInstanceField, _this());
  		onCreateBody.invoke(getInit());
  		onCreateBody.invoke(_super(), onCreate);
  	}
  
  	@Override
  	protected void setContextRef() {
  		contextRef = JExpr._this();
  	}
  
  	@Override
  	protected void setInit() {
  		init = generatedClass.method(PRIVATE, getCodeModel().VOID, "init" + generationSuffix());
  	}
  }
  