org.streampipes.wrapper.declarer.PipelineElementDeclarer Maven / Gradle / Ivy
/*
* Copyright 2018 FZI Forschungszentrum Informatik
*
* 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 org.streampipes.wrapper.declarer;
import org.streampipes.model.Response;
import org.streampipes.model.base.InvocableStreamPipesEntity;
import org.streampipes.sdk.extractor.AbstractParameterExtractor;
import org.streampipes.wrapper.params.binding.BindingParams;
import org.streampipes.wrapper.runtime.PipelineElementRuntime;
public abstract class PipelineElementDeclarer> {
protected EPR epRuntime;
protected String elementId;
public Response invokeEPRuntime(I graph) {
try {
elementId = graph.getElementId();
// change to getRuntime(graph, extractor)
epRuntime = getRuntime(graph, getExtractor(graph));
epRuntime.bindRuntime();
return new Response(graph.getElementId(), true);
} catch (Exception e) {
e.printStackTrace();
return new Response(graph.getElementId(), false, e.getMessage());
}
}
public Response detachRuntime(String pipelineId) {
try {
epRuntime.discardRuntime();
return new Response(elementId, true);
} catch (Exception e) {
e.printStackTrace();
return new Response(elementId, false, e.getMessage());
}
}
protected abstract EX getExtractor(I graph);
public abstract EPR getRuntime(I graph, EX extractor);
}