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Copy pathFragmentArgProcessor.java
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150 lines (114 loc) · 5.31 KB
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/**
* Copyright (C) 2010-2013 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.processing;
import static com.sun.codemodel.JExpr._null;
import static com.sun.codemodel.JExpr._this;
import static com.sun.codemodel.JExpr.invoke;
import static com.sun.codemodel.JExpr.ref;
import static com.sun.codemodel.JMod.PRIVATE;
import static com.sun.codemodel.JMod.PUBLIC;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.Element;
import javax.lang.model.type.TypeMirror;
import org.androidannotations.annotations.FragmentArg;
import org.androidannotations.helper.APTCodeModelHelper;
import org.androidannotations.helper.AnnotationHelper;
import org.androidannotations.helper.BundleHelper;
import org.androidannotations.processing.EBeansHolder.Classes;
import com.sun.codemodel.JBlock;
import com.sun.codemodel.JCatchBlock;
import com.sun.codemodel.JClass;
import com.sun.codemodel.JCodeModel;
import com.sun.codemodel.JExpr;
import com.sun.codemodel.JExpression;
import com.sun.codemodel.JFieldRef;
import com.sun.codemodel.JInvocation;
import com.sun.codemodel.JMethod;
import com.sun.codemodel.JTryBlock;
import com.sun.codemodel.JVar;
public class FragmentArgProcessor implements DecoratingElementProcessor {
private final APTCodeModelHelper helper = new APTCodeModelHelper();
private final AnnotationHelper annotationHelper;
public FragmentArgProcessor(ProcessingEnvironment processingEnv) {
annotationHelper = new AnnotationHelper(processingEnv);
}
@Override
public String getTarget() {
return FragmentArg.class.getName();
}
@Override
public void process(Element element, JCodeModel codeModel, EBeanHolder holder) throws Exception {
FragmentArg annotation = element.getAnnotation(FragmentArg.class);
String argKey = annotation.value();
String fieldName = element.getSimpleName().toString();
if (argKey.isEmpty()) {
argKey = fieldName;
}
TypeMirror elementType = element.asType();
Classes classes = holder.classes();
if (holder.fragmentArguments == null) {
injectFragmentArguments(holder, codeModel);
}
JBlock ifContainsKey = holder.fragmentArgumentsNotNullBlock._if(JExpr.invoke(holder.fragmentArguments, "containsKey").arg(argKey))._then();
JTryBlock containsKeyTry = ifContainsKey._try();
JFieldRef argField = ref(fieldName);
BundleHelper bundleHelper = new BundleHelper(annotationHelper, element);
JInvocation restoreMethodCall = JExpr.invoke(holder.fragmentArguments, bundleHelper.getMethodNameToRestore()).arg(argKey);
if (bundleHelper.restoreCallNeedCastStatement()) {
JClass jclass = helper.typeMirrorToJClass(element.asType(), holder);
JExpression castStatement = JExpr.cast(jclass, restoreMethodCall);
containsKeyTry.body().assign(argField, castStatement);
if (bundleHelper.restoreCallNeedsSuppressWarning()) {
if (holder.fragmentArgumentsInjectMethod.annotations().size() == 0) {
holder.fragmentArgumentsInjectMethod.annotate(SuppressWarnings.class).param("value", "unchecked");
}
}
} else {
containsKeyTry.body().assign(argField, restoreMethodCall);
}
JCatchBlock containsKeyCatch = containsKeyTry._catch(classes.CLASS_CAST_EXCEPTION);
JVar exceptionParam = containsKeyCatch.param("e");
JInvocation logError = classes.LOG.staticInvoke("e");
logError.arg(holder.generatedClass.name());
logError.arg("Could not cast argument to the expected type, the field is left to its default value");
logError.arg(exceptionParam);
containsKeyCatch.body().add(logError);
{
JMethod method = holder.fragmentBuilderClass.method(PUBLIC, holder.fragmentBuilderClass, fieldName);
JClass paramClass = helper.typeMirrorToJClass(elementType, holder);
JVar arg = method.param(paramClass, fieldName);
// Assign
method.body().invoke(holder.fragmentArgumentsBuilderField, bundleHelper.getMethodNameToSave()).arg(argKey).arg(arg);
method.body()._return(_this());
}
}
/**
* Adds call to injectFragmentArguments_() in onCreate and setIntent()
* methods.
*/
private void injectFragmentArguments(EBeanHolder holder, JCodeModel codeModel) {
Classes classes = holder.classes();
holder.fragmentArgumentsInjectMethod = holder.generatedClass.method(PRIVATE, codeModel.VOID, "injectFragmentArguments_");
injectArgumentsOnInit(holder, classes.INTENT, holder.fragmentArgumentsInjectMethod);
JBlock injectArgumentsBody = holder.fragmentArgumentsInjectMethod.body();
holder.fragmentArguments = injectArgumentsBody.decl(classes.BUNDLE, "args_");
holder.fragmentArguments.init(invoke("getArguments"));
holder.fragmentArgumentsNotNullBlock = injectArgumentsBody._if(holder.fragmentArguments.ne(_null()))._then();
}
private void injectArgumentsOnInit(EBeanHolder holder, JClass intentClass, JMethod injectArgumentsMethod) {
holder.initBody.invoke(injectArgumentsMethod);
}
}