/*
* Copyright © 2015-2016 Cask Data, Inc.
*
* 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 co.cask.cdap.etl.mock.transform;
import co.cask.cdap.api.annotation.Name;
import co.cask.cdap.api.annotation.Plugin;
import co.cask.cdap.api.data.format.StructuredRecord;
import co.cask.cdap.api.plugin.PluginClass;
import co.cask.cdap.api.plugin.PluginPropertyField;
import co.cask.cdap.etl.api.Emitter;
import co.cask.cdap.etl.api.InvalidEntry;
import co.cask.cdap.etl.api.Transform;
import co.cask.cdap.etl.proto.v2.ETLPlugin;
import java.util.HashMap;
import java.util.Map;
/**
* Transform used to test writing to error datasets. Writes all its input as errors.
*/
@Plugin(type = Transform.PLUGIN_TYPE)
@Name("Error")
public class ErrorTransform extends Transform<StructuredRecord, StructuredRecord> {
public static final PluginClass PLUGIN_CLASS = getPluginClass();
@Override
public void transform(StructuredRecord input, Emitter<StructuredRecord> emitter) throws Exception {
emitter.emitError(new InvalidEntry<>(500, "msg", input));
}
public static ETLPlugin getPlugin() {
return new ETLPlugin("Error", Transform.PLUGIN_TYPE, new HashMap<String, String>(), null);
}
private static PluginClass getPluginClass() {
Map<String, PluginPropertyField> properties = new HashMap<>();
return new PluginClass(Transform.PLUGIN_TYPE, "Error", "", ErrorTransform.class.getName(), null, properties);
}
}