org.activiti.rest.service.api.legacy.process.StartProcessInstanceResource.java Source code

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Here is the source code for org.activiti.rest.service.api.legacy.process.StartProcessInstanceResource.java

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/* 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.activiti.rest.service.api.legacy.process;

import java.util.Map;

import org.activiti.engine.ActivitiException;
import org.activiti.engine.runtime.ProcessInstance;
import org.activiti.rest.common.api.ActivitiUtil;
import org.activiti.rest.common.api.SecuredResource;
import org.restlet.data.Status;
import org.restlet.representation.Representation;
import org.restlet.resource.Post;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * @author Tijs Rademakers
 */
public class StartProcessInstanceResource extends SecuredResource {

    @Post
    public StartProcessInstanceResponse startProcessInstance(Representation entity) {
        try {
            if (authenticate() == false)
                return null;

            String startParams = entity.getText();
            JsonNode startJSON = new ObjectMapper().readTree(startParams);
            String processDefinitionKey = startJSON.path("processDefinitionKey").textValue();
            String processDefinitionId = null;
            if (processDefinitionKey == null) {
                processDefinitionId = startJSON.path("processDefinitionId").textValue();
            }
            JsonNode businessKeyJson = startJSON.path("businessKey");
            String businessKey = null;
            if (businessKeyJson != null) {
                businessKey = businessKeyJson.textValue();
            }

            Map<String, Object> variables = retrieveVariables(startJSON);
            variables.remove("processDefinitionId");
            variables.remove("processDefinitionKey");
            variables.remove("businessKey");

            ProcessInstance processInstance = null;
            if (processDefinitionKey != null) {
                processInstance = ActivitiUtil.getRuntimeService().startProcessInstanceByKey(processDefinitionKey,
                        businessKey, variables);
            } else {
                processInstance = ActivitiUtil.getRuntimeService().startProcessInstanceById(processDefinitionId,
                        businessKey, variables);
            }
            StartProcessInstanceResponse response = new StartProcessInstanceResponse(processInstance);
            return response;

        } catch (Exception e) {
            if (e instanceof ActivitiException) {
                throw (ActivitiException) e;
            }
            throw new ActivitiException("Failed to retrieve the process definition parameters", e);
        }

    }

    protected Status getAuthenticationFailureStatus() {
        return Status.CLIENT_ERROR_FORBIDDEN;
    }
}