org.camunda.bpm.engine.impl.dmn.result.CollectEntriesDecisionResultMapper Maven / Gradle / Ivy
/*
* Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. Camunda licenses this file to you under the Apache License,
* Version 2.0; 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.camunda.bpm.engine.impl.dmn.result;
import java.util.Collections;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import org.camunda.bpm.dmn.engine.DmnDecisionResult;
import org.camunda.bpm.engine.impl.ProcessEngineLogger;
import org.camunda.bpm.engine.impl.dmn.DecisionLogger;
/**
* Maps the decision result to a list of untyped entries.
*
* @author Philipp Ossler
*/
public class CollectEntriesDecisionResultMapper implements DecisionResultMapper {
protected static final DecisionLogger LOG = ProcessEngineLogger.DECISION_LOGGER;
@Override
public Object mapDecisionResult(DmnDecisionResult decisionResult) {
if (decisionResult.isEmpty()) {
return Collections.emptyList();
} else {
Set outputNames = collectOutputNames(decisionResult);
if (outputNames.size() > 1) {
throw LOG.decisionResultCollectMappingException(outputNames, decisionResult, this);
} else {
String outputName = outputNames.iterator().next();
return decisionResult.collectEntries(outputName);
}
}
}
protected Set collectOutputNames(DmnDecisionResult decisionResult) {
Set outputNames = new HashSet();
for (Map entryMap : decisionResult.getResultList()) {
outputNames.addAll(entryMap.keySet());
}
return outputNames;
}
@Override
public String toString() {
return "CollectEntriesDecisionResultMapper{}";
}
}