/**
* 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.join.processor;
import java.util.List;
import com.asakusafw.compiler.common.TargetOperator;
import com.asakusafw.compiler.flow.LineEndProcessor;
import com.asakusafw.compiler.flow.join.JoinResourceDescription;
import com.asakusafw.compiler.flow.join.operator.SideDataJoinUpdate;
import com.asakusafw.utils.collections.Lists;
import com.asakusafw.utils.java.model.syntax.Expression;
import com.asakusafw.utils.java.model.syntax.ModelFactory;
import com.asakusafw.utils.java.model.syntax.Statement;
import com.asakusafw.utils.java.model.util.ExpressionBuilder;
import com.asakusafw.utils.java.model.util.Models;
import com.asakusafw.vocabulary.flow.graph.FlowElementPortDescription;
import com.asakusafw.vocabulary.flow.graph.FlowResourceDescription;
import com.asakusafw.vocabulary.flow.graph.OperatorDescription;
/**
* {@link SideDataJoinUpdate}を処理する。
*/
@TargetOperator(SideDataJoinUpdate.class)
public class SideDataJoinUpdateFlowProcessor extends LineEndProcessor {
@Override
public void emitLineEnd(Context context) {
FlowResourceDescription resource = context.getResourceDescription(SideDataJoinUpdate.ID_RESOURCE_MASTER);
SideDataKindFlowAnalyzer helper = new SideDataKindFlowAnalyzer(
context,
(JoinResourceDescription) resource);
ModelFactory f = context.getModelFactory();
OperatorDescription desc = context.getOperatorDescription();
FlowElementPortDescription updatedPort = context.getOutputPort(SideDataJoinUpdate.ID_OUTPUT_UPDATED);
FlowElementPortDescription missedPort = context.getOutputPort(SideDataJoinUpdate.ID_OUTPUT_MISSED);
ResultMirror updated = context.getOutput(updatedPort);
ResultMirror missed = context.getOutput(missedPort);
Expression impl = context.createImplementation();
List<Expression> arguments = Lists.create();
arguments.add(helper.getGetRawMasterExpression());
arguments.add(context.getInput());
for (OperatorDescription.Parameter param : desc.getParameters()) {
arguments.add(Models.toLiteral(f, param.getValue()));
}
context.add(f.newIfStatement(
helper.getHasMasterExpresion(),
f.newBlock(new Statement[] {
new ExpressionBuilder(f, impl)
.method(desc.getDeclaration().getName(), arguments)
.toStatement(),
updated.createAdd(context.getInput())
}),
f.newBlock(missed.createAdd(context.getInput()))));
}
}