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org.camunda.bpm.engine.rest.sub.repository.impl.DecisionDefinitionResourceImpl 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.rest.sub.repository.impl;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.core.UriInfo;
import org.camunda.bpm.dmn.engine.DmnDecisionResult;
import org.camunda.bpm.dmn.engine.DmnDecisionResultEntries;
import org.camunda.bpm.dmn.engine.DmnEngineException;
import org.camunda.bpm.engine.AuthorizationException;
import org.camunda.bpm.engine.DecisionService;
import org.camunda.bpm.engine.ProcessEngine;
import org.camunda.bpm.engine.ProcessEngineException;
import org.camunda.bpm.engine.RepositoryService;
import org.camunda.bpm.engine.exception.NotFoundException;
import org.camunda.bpm.engine.exception.NotValidException;
import org.camunda.bpm.engine.impl.util.IoUtil;
import org.camunda.bpm.engine.repository.DecisionDefinition;
import org.camunda.bpm.engine.rest.dto.HistoryTimeToLiveDto;
import org.camunda.bpm.engine.rest.dto.VariableValueDto;
import org.camunda.bpm.engine.rest.dto.dmn.EvaluateDecisionDto;
import org.camunda.bpm.engine.rest.dto.repository.DecisionDefinitionDiagramDto;
import org.camunda.bpm.engine.rest.dto.repository.DecisionDefinitionDto;
import org.camunda.bpm.engine.rest.exception.InvalidRequestException;
import org.camunda.bpm.engine.rest.exception.RestException;
import org.camunda.bpm.engine.rest.sub.repository.DecisionDefinitionResource;
import org.camunda.bpm.engine.variable.VariableMap;
import org.camunda.bpm.engine.variable.Variables;
import org.camunda.bpm.engine.variable.value.TypedValue;
import com.fasterxml.jackson.databind.ObjectMapper;
public class DecisionDefinitionResourceImpl implements DecisionDefinitionResource {
protected ProcessEngine engine;
protected String decisionDefinitionId;
protected String rootResourcePath;
protected ObjectMapper objectMapper;
public DecisionDefinitionResourceImpl(ProcessEngine engine, String decisionDefinitionId, String rootResourcePath, ObjectMapper objectMapper) {
this.engine = engine;
this.decisionDefinitionId = decisionDefinitionId;
this.rootResourcePath = rootResourcePath;
this.objectMapper = objectMapper;
}
@Override
public DecisionDefinitionDto getDecisionDefinition() {
RepositoryService repositoryService = engine.getRepositoryService();
DecisionDefinition definition = null;
try {
definition = repositoryService.getDecisionDefinition(decisionDefinitionId);
} catch (NotFoundException e) {
throw new InvalidRequestException(Status.NOT_FOUND, e, e.getMessage());
} catch (NotValidException e) {
throw new InvalidRequestException(Status.BAD_REQUEST, e, e.getMessage());
} catch (ProcessEngineException e) {
throw new RestException(Status.INTERNAL_SERVER_ERROR, e);
}
return DecisionDefinitionDto.fromDecisionDefinition(definition);
}
@Override
public DecisionDefinitionDiagramDto getDecisionDefinitionDmnXml() {
InputStream decisionModelInputStream = null;
try {
decisionModelInputStream = engine.getRepositoryService().getDecisionModel(decisionDefinitionId);
byte[] decisionModel = IoUtil.readInputStream(decisionModelInputStream, "decisionModelDmnXml");
return DecisionDefinitionDiagramDto.create(decisionDefinitionId, new String(decisionModel, "UTF-8"));
} catch (NotFoundException e) {
throw new InvalidRequestException(Status.NOT_FOUND, e, e.getMessage());
} catch (NotValidException e) {
throw new InvalidRequestException(Status.BAD_REQUEST, e, e.getMessage());
} catch (ProcessEngineException e) {
throw new RestException(Status.INTERNAL_SERVER_ERROR, e);
} catch (UnsupportedEncodingException e) {
throw new RestException(Status.INTERNAL_SERVER_ERROR, e);
} finally {
IoUtil.closeSilently(decisionModelInputStream);
}
}
@Override
public Response getDecisionDefinitionDiagram() {
DecisionDefinition definition = engine.getRepositoryService().getDecisionDefinition(decisionDefinitionId);
InputStream decisionDiagram = engine.getRepositoryService().getDecisionDiagram(decisionDefinitionId);
if (decisionDiagram == null) {
return Response.noContent().build();
} else {
String fileName = definition.getDiagramResourceName();
return Response.ok(decisionDiagram).header("Content-Disposition", "attachment; filename=" + fileName)
.type(ProcessDefinitionResourceImpl.getMediaTypeForFileSuffix(fileName)).build();
}
}
@Override
public List> evaluateDecision(UriInfo context, EvaluateDecisionDto parameters) {
DecisionService decisionService = engine.getDecisionService();
Map variables = VariableValueDto.toMap(parameters.getVariables(), engine, objectMapper);
try {
DmnDecisionResult decisionResult = decisionService
.evaluateDecisionById(decisionDefinitionId)
.variables(variables)
.evaluate();
return createDecisionResultDto(decisionResult);
}
catch (AuthorizationException e) {
throw e;
}
catch (NotFoundException e) {
String errorMessage = String.format("Cannot evaluate decision %s: %s", decisionDefinitionId, e.getMessage());
throw new InvalidRequestException(Status.NOT_FOUND, e, errorMessage);
}
catch (NotValidException e) {
String errorMessage = String.format("Cannot evaluate decision %s: %s", decisionDefinitionId, e.getMessage());
throw new InvalidRequestException(Status.BAD_REQUEST, e, errorMessage);
}
catch (ProcessEngineException e) {
String errorMessage = String.format("Cannot evaluate decision %s: %s", decisionDefinitionId, e.getMessage());
throw new RestException(Status.INTERNAL_SERVER_ERROR, e, errorMessage);
}
catch (DmnEngineException e) {
String errorMessage = String.format("Cannot evaluate decision %s: %s", decisionDefinitionId, e.getMessage());
throw new RestException(Status.INTERNAL_SERVER_ERROR, e, errorMessage);
}
}
@Override
public void updateHistoryTimeToLive(HistoryTimeToLiveDto historyTimeToLiveDto) {
engine.getRepositoryService().updateDecisionDefinitionHistoryTimeToLive(decisionDefinitionId, historyTimeToLiveDto.getHistoryTimeToLive());
}
protected List> createDecisionResultDto(DmnDecisionResult decisionResult) {
List> dto = new ArrayList<>();
for (DmnDecisionResultEntries entries : decisionResult) {
Map resultEntriesDto = createResultEntriesDto(entries);
dto.add(resultEntriesDto);
}
return dto;
}
protected Map createResultEntriesDto(DmnDecisionResultEntries entries) {
VariableMap variableMap = Variables.createVariables();
for(String key : entries.keySet()) {
TypedValue typedValue = entries.getEntryTyped(key);
variableMap.putValueTyped(key, typedValue);
}
return VariableValueDto.fromMap(variableMap);
}
}