/**
* 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.example;
import com.asakusafw.compiler.flow.testing.model.Ex1;
import com.asakusafw.compiler.flow.testing.model.Ex2;
import com.asakusafw.compiler.flow.testing.operator.ExOperatorFactory;
import com.asakusafw.compiler.flow.testing.operator.ExOperatorFactory.Cogroup;
import com.asakusafw.compiler.flow.testing.operator.ExOperatorFactory.Update;
import com.asakusafw.vocabulary.flow.FlowDescription;
import com.asakusafw.vocabulary.flow.FlowPart;
import com.asakusafw.vocabulary.flow.In;
import com.asakusafw.vocabulary.flow.Out;
import com.asakusafw.vocabulary.flow.util.CoreOperatorFactory;
/**
* Splits mappers and then unify them.
*/
@SuppressWarnings("all")
@FlowPart
public class SplitStage extends FlowDescription {
private final In<Ex1> in1;
private final Out<Ex1> out1;
private final Out<Ex1> out2;
public SplitStage(
In<Ex1> in1,
Out<Ex1> out1,
Out<Ex1> out2) {
this.in1 = in1;
this.out1 = out1;
this.out2 = out2;
}
@Override
protected void describe() {
ExOperatorFactory f = new ExOperatorFactory();
CoreOperatorFactory core = new CoreOperatorFactory();
Update update0 = f.update(in1, 1);
Update update1 = f.update(core.checkpoint(update0.out), 2);
Cogroup cog1 = f.cogroup(update1.out, core.empty(Ex2.class));
core.stop(cog1.r2);
Cogroup cog2 = f.cogroup(update1.out, core.empty(Ex2.class));
core.stop(cog2.r2);
out1.add(cog1.r1);
out2.add(cog2.r1);
}
}