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/**
* Copyright (C) 2010-2015 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.handler;
import static com.sun.codemodel.JExpr._new;
import static com.sun.codemodel.JExpr._super;
import static com.sun.codemodel.JExpr._this;
import static com.sun.codemodel.JExpr.invoke;
import static org.androidannotations.helper.ModelConstants.generationSuffix;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.AnnotationValue;
import javax.lang.model.element.Element;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.type.TypeMirror;
import org.androidannotations.annotations.RoboGuice;
import org.androidannotations.helper.APTCodeModelHelper;
import org.androidannotations.holder.EActivityHolder;
import org.androidannotations.holder.RoboGuiceHolder;
import org.androidannotations.model.AnnotationElements;
import org.androidannotations.process.IsValid;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JExpression;
import com.sun.codemodel.JFieldVar;
import com.sun.codemodel.JInvocation;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JMod;
import com.sun.codemodel.JTryBlock;
import com.sun.codemodel.JVar;
public class RoboGuiceHandler extends BaseAnnotationHandler<EActivityHolder> {
private APTCodeModelHelper codeModelHelper = new APTCodeModelHelper();
public RoboGuiceHandler(ProcessingEnvironment processingEnvironment) {
super(RoboGuice.class, processingEnvironment);
}
@Override
public void validate(Element element, AnnotationElements validatedElements, IsValid valid) {
validatorHelper.hasEActivity(element, validatedElements, valid);
validatorHelper.hasRoboGuiceJars(element, valid);
}
@Override
public void process(Element element, EActivityHolder holder) {
RoboGuiceHolder roboGuiceHolder = holder.getRoboGuiceHolder();
holder.getGeneratedClass()._implements(classes().ROBO_CONTEXT);
JFieldVar scope = roboGuiceHolder.getScopeField();
JFieldVar scopedObjects = roboGuiceHolder.getScopedObjectsField();
JFieldVar eventManager = roboGuiceHolder.getEventManagerField();
roboGuiceHolder.getContentViewListenerField();
listenerFields(element, holder);
beforeCreateMethod(holder, scope, scopedObjects, eventManager);
onRestartMethod(roboGuiceHolder, eventManager);
onStartMethod(roboGuiceHolder, eventManager);
onResumeMethod(roboGuiceHolder, eventManager);
onPauseMethod(roboGuiceHolder, eventManager);
onNewIntentMethod(roboGuiceHolder, eventManager);
onStopMethod(roboGuiceHolder, eventManager);
onDestroyMethod(roboGuiceHolder, eventManager);
onConfigurationChangedMethod(roboGuiceHolder, eventManager);
onContentChangedMethod(roboGuiceHolder, holder, scope, eventManager);
onActivityResultMethod(roboGuiceHolder, eventManager);
getScopedObjectMap(holder, scopedObjects);
}
private void listenerFields(Element element, EActivityHolder holder) {
List<TypeMirror> listenerTypeMirrors = extractListenerTypeMirrors(element);
int i = 1;
for (TypeMirror listenterTypeMirror : listenerTypeMirrors) {
JClass listenerClass = codeModelHelper.typeMirrorToJClass(listenterTypeMirror, holder);
JFieldVar listener = holder.getGeneratedClass().field(JMod.PRIVATE, listenerClass, "listener" + i + generationSuffix());
codeModelHelper.addSuppressWarnings(listener, "unused");
listener.annotate(classes().INJECT);
i++;
}
}
private List<TypeMirror> extractListenerTypeMirrors(Element activityElement) {
List<? extends AnnotationMirror> annotationMirrors = activityElement.getAnnotationMirrors();
String annotationName = RoboGuice.class.getName();
for (AnnotationMirror annotationMirror : annotationMirrors) {
if (annotationName.equals(annotationMirror.getAnnotationType().toString())) {
for (Map.Entry<? extends ExecutableElement, ? extends AnnotationValue> entry : annotationMirror.getElementValues().entrySet()) {
if ("value".equals(entry.getKey().getSimpleName().toString())) {
AnnotationValue action = entry.getValue();
@SuppressWarnings("unchecked")
List<AnnotationValue> elements = (List<AnnotationValue>) action.getValue();
List<TypeMirror> listenerTypeMirrors = new ArrayList<>(elements.size());
for (AnnotationValue annotationValue : elements) {
listenerTypeMirrors.add((TypeMirror) annotationValue.getValue());
}
return listenerTypeMirrors;
}
}
}
}
return Collections.emptyList();
}
private void beforeCreateMethod(EActivityHolder holder, JFieldVar scope, JFieldVar scopedObjects, JFieldVar eventManager) {
JBlock body = holder.getInitBody();
JClass keyWildCard = classes().KEY.narrow(codeModel().wildcard());
JClass scopedHashMap = classes().HASH_MAP.narrow(keyWildCard, classes().OBJECT);
body.assign(scopedObjects, JExpr._new(scopedHashMap));
JVar injector = body.decl(classes().ROBO_INJECTOR, "injector_", classes().ROBO_GUICE.staticInvoke("getInjector").arg(_this()));
body.assign(scope, invoke(injector, "getInstance").arg(classes().CONTEXT_SCOPE.dotclass()));
body.assign(eventManager, invoke(injector, "getInstance").arg(classes().EVENT_MANAGER.dotclass()));
body.add(injector.invoke("injectMembersWithoutViews").arg(_this()));
fireEvent(eventManager, body, classes().ON_CREATE_EVENT, holder.getInitSavedInstanceParam());
}
private void onRestartMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onRestartAfterSuperBlock = holder.getOnRestartAfterSuperBlock();
fireEvent(eventManager, onRestartAfterSuperBlock, classes().ON_RESTART_EVENT);
}
private void onStartMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onStartAfterSuperBlock = holder.getOnStartAfterSuperBlock();
fireEvent(eventManager, onStartAfterSuperBlock, classes().ON_START_EVENT);
}
private void onResumeMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onResumeAfterSuperBlock = holder.getOnResumeAfterSuperBlock();
fireEvent(eventManager, onResumeAfterSuperBlock, classes().ON_RESUME_EVENT);
}
private void onPauseMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onPauseAfterSuperBlock = holder.getOnPauseAfterSuperBlock();
fireEvent(eventManager, onPauseAfterSuperBlock, classes().ON_PAUSE_EVENT);
}
private void onNewIntentMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onNewIntentAfterSuperBlock = holder.getOnNewIntentAfterSuperBlock();
fireEvent(eventManager, onNewIntentAfterSuperBlock, classes().ON_NEW_INTENT_EVENT);
}
private void onStopMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onStopBlock = new JBlock(false, false);
JTryBlock tryBlock = onStopBlock._try();
fireEvent(eventManager, tryBlock.body(), classes().ON_STOP_EVENT);
JBlock finallyBody = tryBlock._finally();
finallyBody.invoke(_super(), "onStop");
JMethod onStop = holder.getOnStop();
codeModelHelper.replaceSuperCall(onStop, onStopBlock);
}
private void onDestroyMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onDestroyBlock = new JBlock(false, false);
JTryBlock tryBlock = onDestroyBlock._try();
fireEvent(eventManager, tryBlock.body(), classes().ON_DESTROY_EVENT);
JBlock finallyBody = tryBlock._finally();
JTryBlock tryInFinally = finallyBody._try();
tryInFinally.body().add(classes().ROBO_GUICE.staticInvoke("destroyInjector").arg(_this()));
tryInFinally._finally().invoke(_super(), "onDestroy");
JMethod onDestroy = holder.getOnDestroy();
codeModelHelper.replaceSuperCall(onDestroy, onDestroyBlock);
}
private void onConfigurationChangedMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JVar currentConfig = holder.getCurrentConfig();
JBlock onConfigurationChangedAfterSuperBlock = holder.getOnConfigurationChangedAfterSuperBlock();
JExpression newConfig = holder.getNewConfig();
fireEvent(eventManager, onConfigurationChangedAfterSuperBlock, classes().ON_CONFIGURATION_CHANGED_EVENT, currentConfig, newConfig);
}
private void onContentChangedMethod(RoboGuiceHolder holder, EActivityHolder eActivityHolder, JFieldVar scope, JFieldVar eventManager) {
JBlock onContentChangedAfterSuperBlock = holder.getOnContentChangedAfterSuperBlock();
// no synchronized in CodeModel
// https://java.net/jira/browse/CODEMODEL-6
onContentChangedAfterSuperBlock.directStatement("synchronized(" + classes().CONTEXT_SCOPE.name() + ".class" + ")");
JBlock synchronizedBlock = new JBlock(true, true);
synchronizedBlock.invoke(scope, "enter").arg(_this());
JTryBlock tryBlock = synchronizedBlock._try();
tryBlock.body().staticInvoke(eActivityHolder.refClass(org.androidannotations.api.roboguice.RoboGuiceHelper.class), "callInjectViews").arg(_this());
tryBlock._finally().invoke(scope, "exit").arg(_this());
onContentChangedAfterSuperBlock.add(synchronizedBlock);
fireEvent(eventManager, onContentChangedAfterSuperBlock, classes().ON_CONTENT_CHANGED_EVENT);
}
private void onActivityResultMethod(RoboGuiceHolder holder, JFieldVar eventManager) {
JBlock onActivityResultAfterSuperBlock = holder.getOnActivityResultAfterSuperBlock();
JVar requestCode = holder.getRequestCode();
JVar resultCode = holder.getResultCode();
JVar data = holder.getData();
fireEvent(eventManager, onActivityResultAfterSuperBlock, classes().ON_ACTIVITY_RESULT_EVENT, requestCode, resultCode, data);
}
private void fireEvent(JFieldVar eventManager, JBlock body, JClass eventClass, JExpression... eventArguments) {
JClass actualEventClass = eventClass;
if (eventClass.fullName().startsWith("roboguice.context.event")) {
actualEventClass = eventClass.narrow(classes().ACTIVITY);
}
JInvocation newEvent = _new(actualEventClass);
newEvent.arg(_this());
for (JExpression eventArgument : eventArguments) {
newEvent.arg(eventArgument);
}
body.invoke(eventManager, "fire").arg(newEvent);
}
private void getScopedObjectMap(EActivityHolder holder, JFieldVar scopedObjectMap) {
JMethod getScopedObjectMapMethod = holder.getGeneratedClass().method(JMod.PUBLIC, scopedObjectMap.type(), "getScopedObjectMap");
getScopedObjectMapMethod.annotate(Override.class);
getScopedObjectMapMethod.body()._return(scopedObjectMap);
}
}