/**
* Copyright 2011-2014 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.flow.processor;
import com.asakusafw.compiler.common.TargetOperator;
import com.asakusafw.compiler.flow.DataClass;
import com.asakusafw.compiler.flow.DataClass.Property;
import com.asakusafw.compiler.flow.LinePartProcessor;
import com.asakusafw.utils.java.model.syntax.Expression;
import com.asakusafw.vocabulary.flow.graph.FlowElementPortDescription;
import com.asakusafw.vocabulary.operator.Restructure;
/**
* {@link Restructure 再構築演算子}を処理する。
*/
@TargetOperator(Restructure.class)
public class RestructureFlowProcessor extends LinePartProcessor {
@Override
public void emitLinePart(Context context) {
FlowElementPortDescription input = context.getInputPort(Restructure.ID_INPUT);
FlowElementPortDescription output = context.getOutputPort(Restructure.ID_OUTPUT);
DataObjectMirror cache = context.createModelCache(output.getDataType());
context.setOutput(cache.get());
DataClass sourceType = loadChecked(input);
DataClass sinkType = loadChecked(output);
if (sourceType == null || sinkType == null) {
return;
}
context.add(cache.createReset());
Expression inputObject = context.getInput();
Expression outputObject = cache.get();
for (DataClass.Property sourceProperty : sourceType.getProperties()) {
Property sinkProperty = sinkType.findProperty(sourceProperty.getName());
if (sinkProperty == null) {
// skip this property
} else if (sourceProperty.getType().equals(sinkProperty.getType()) == false) {
getEnvironment().error(
"{0}において、{1}.{2}と{3}.{4}のプロパティ型が一致しません",
context.getOperatorDescription().getName(),
sourceType,
sourceProperty.getName(),
sinkType,
sinkProperty.getName());
} else {
context.add(sinkProperty.createSetter(outputObject,
sourceProperty.createGetter(inputObject)));
}
}
}
private DataClass loadChecked(FlowElementPortDescription port) {
DataClass resolved = getEnvironment().getDataClasses().load(port.getDataType());
if (resolved == null) {
getEnvironment().error(
"型{0}を解決できませんでした",
port.getDataType());
}
return resolved;
}
}