/**
* Copyright 2011-2017 Asakusa Framework Team.
*
* 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.asakusafw.compiler.operator.processor;
import com.asakusafw.compiler.common.Precondition;
import com.asakusafw.compiler.common.TargetOperator;
import com.asakusafw.compiler.operator.AbstractOperatorProcessor;
import com.asakusafw.compiler.operator.ExecutableAnalyzer;
import com.asakusafw.compiler.operator.OperatorMethodDescriptor;
import com.asakusafw.compiler.operator.OperatorMethodDescriptor.Builder;
import com.asakusafw.vocabulary.operator.Update;
/**
* Processes {@link Update} operators.
*/
@TargetOperator(Update.class)
public class UpdateOperatorProcessor extends AbstractOperatorProcessor {
@Override
public OperatorMethodDescriptor describe(Context context) {
Precondition.checkMustNotBeNull(context, "context"); //$NON-NLS-1$
ExecutableAnalyzer a = new ExecutableAnalyzer(context.environment, context.element);
if (a.isAbstract()) {
a.error(Messages.getString("UpdateOperatorProcessor.errorAbstract")); //$NON-NLS-1$
}
if (a.getReturnType().isVoid() == false) {
a.error(Messages.getString("UpdateOperatorProcessor.errorNotVoidResult")); //$NON-NLS-1$
}
if (a.getParameterType(0).isModel() == false) {
a.error(0, Messages.getString("UpdateOperatorProcessor.errorNotModelInput")); //$NON-NLS-1$
}
for (int i = 1, n = a.countParameters(); i < n; i++) {
if (a.getParameterType(i).isBasic() == false) {
a.error(i, Messages.getString(
"UpdateOperatorProcessor.errorInvalidOptionOptionParameter")); //$NON-NLS-1$
}
}
Update annotation = context.element.getAnnotation(Update.class);
if (annotation == null) {
a.error(Messages.getString("UpdateOperatorProcessor.errorInvalidAnnotation")); //$NON-NLS-1$
return null;
}
OperatorProcessorUtil.checkPortName(a, new String[] {
annotation.outputPort(),
});
if (a.hasError()) {
return null;
}
Builder builder = new Builder(getTargetAnnotationType(), context);
builder.addAttribute(a.getObservationCount());
builder.setDocumentation(a.getExecutableDocument());
builder.addInput(
a.getParameterDocument(0),
a.getParameterName(0),
a.getParameterType(0).getType(),
0);
builder.addOutput(
Messages.getString("UpdateOperatorProcessor.javadocOutput"), //$NON-NLS-1$
annotation.outputPort(),
a.getParameterType(0).getType(),
a.getParameterName(0),
0);
for (int i = 1, n = a.countParameters(); i < n; i++) {
builder.addParameter(
a.getParameterDocument(i),
a.getParameterName(i),
a.getParameterType(i).getType(),
i);
}
return builder.toDescriptor();
}
}