org.activiti.rest.service.api.legacy.TaskPropertiesResource.java Source code

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Here is the source code for org.activiti.rest.service.api.legacy.TaskPropertiesResource.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;

import java.util.List;
import java.util.Map;

import org.activiti.engine.form.FormProperty;
import org.activiti.engine.form.TaskFormData;
import org.activiti.engine.impl.form.EnumFormType;
import org.activiti.rest.common.api.ActivitiUtil;
import org.activiti.rest.common.api.SecuredResource;
import org.restlet.resource.Get;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;

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

    @Get
    public ObjectNode getTaskProperties() {
        if (authenticate() == false)
            return null;
        String taskId = (String) getRequest().getAttributes().get("taskId");
        TaskFormData taskFormData = ActivitiUtil.getFormService().getTaskFormData(taskId);

        ObjectNode responseJSON = new ObjectMapper().createObjectNode();

        ArrayNode propertiesJSON = new ObjectMapper().createArrayNode();

        if (taskFormData != null) {

            List<FormProperty> properties = taskFormData.getFormProperties();

            for (FormProperty property : properties) {
                ObjectNode propertyJSON = new ObjectMapper().createObjectNode();
                propertyJSON.put("id", property.getId());
                propertyJSON.put("name", property.getName());

                if (property.getValue() != null) {
                    propertyJSON.put("value", property.getValue());
                } else {
                    propertyJSON.putNull("value");
                }

                if (property.getType() != null) {
                    propertyJSON.put("type", property.getType().getName());

                    if (property.getType() instanceof EnumFormType) {
                        @SuppressWarnings("unchecked")
                        Map<String, String> valuesMap = (Map<String, String>) property.getType()
                                .getInformation("values");
                        if (valuesMap != null) {
                            ArrayNode valuesArray = new ObjectMapper().createArrayNode();
                            propertyJSON.put("enumValues", valuesArray);

                            for (String key : valuesMap.keySet()) {
                                ObjectNode valueJSON = new ObjectMapper().createObjectNode();
                                valueJSON.put("id", key);
                                valueJSON.put("name", valuesMap.get(key));
                                valuesArray.add(valueJSON);
                            }
                        }
                    }

                } else {
                    propertyJSON.put("type", "String");
                }

                propertyJSON.put("required", property.isRequired());
                propertyJSON.put("readable", property.isReadable());
                propertyJSON.put("writable", property.isWritable());

                propertiesJSON.add(propertyJSON);
            }
        }

        responseJSON.put("data", propertiesJSON);

        return responseJSON;
    }

}