org.activiti.editor.language.json.converter.CallActivityJsonConverter.java Source code

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Here is the source code for org.activiti.editor.language.json.converter.CallActivityJsonConverter.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.editor.language.json.converter;

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

import org.activiti.bpmn.model.BaseElement;
import org.activiti.bpmn.model.CallActivity;
import org.activiti.bpmn.model.FlowElement;
import org.activiti.bpmn.model.IOParameter;
import org.apache.commons.lang3.StringUtils;

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

/**
 * @author Tijs Rademakers
 */
public class CallActivityJsonConverter extends BaseBpmnJsonConverter {

    public static void fillTypes(Map<String, Class<? extends BaseBpmnJsonConverter>> convertersToBpmnMap,
            Map<Class<? extends BaseElement>, Class<? extends BaseBpmnJsonConverter>> convertersToJsonMap) {

        fillJsonTypes(convertersToBpmnMap);
        fillBpmnTypes(convertersToJsonMap);
    }

    public static void fillJsonTypes(Map<String, Class<? extends BaseBpmnJsonConverter>> convertersToBpmnMap) {
        convertersToBpmnMap.put(STENCIL_CALL_ACTIVITY, CallActivityJsonConverter.class);
    }

    public static void fillBpmnTypes(
            Map<Class<? extends BaseElement>, Class<? extends BaseBpmnJsonConverter>> convertersToJsonMap) {
        convertersToJsonMap.put(CallActivity.class, CallActivityJsonConverter.class);
    }

    protected String getStencilId(FlowElement flowElement) {
        return STENCIL_CALL_ACTIVITY;
    }

    protected void convertElementToJson(ObjectNode propertiesNode, FlowElement flowElement) {
        CallActivity callActivity = (CallActivity) flowElement;
        if (StringUtils.isNotEmpty(callActivity.getCalledElement())) {
            propertiesNode.put(PROPERTY_CALLACTIVITY_CALLEDELEMENT, callActivity.getCalledElement());
        }

        addJsonParameters(PROPERTY_CALLACTIVITY_IN, callActivity.getInParameters(), propertiesNode);
        addJsonParameters(PROPERTY_CALLACTIVITY_OUT, callActivity.getOutParameters(), propertiesNode);
    }

    private void addJsonParameters(String propertyName, List<IOParameter> parameterList,
            ObjectNode propertiesNode) {
        ObjectNode parametersNode = objectMapper.createObjectNode();
        ArrayNode itemsNode = objectMapper.createArrayNode();
        for (IOParameter parameter : parameterList) {
            ObjectNode parameterItemNode = objectMapper.createObjectNode();
            if (StringUtils.isNotEmpty(parameter.getSource())) {
                parameterItemNode.put(PROPERTY_IOPARAMETER_SOURCE, parameter.getSource());
            } else {
                parameterItemNode.putNull(PROPERTY_IOPARAMETER_SOURCE);
            }
            if (StringUtils.isNotEmpty(parameter.getTarget())) {
                parameterItemNode.put(PROPERTY_IOPARAMETER_TARGET, parameter.getTarget());
            } else {
                parameterItemNode.putNull(PROPERTY_IOPARAMETER_TARGET);
            }
            if (StringUtils.isNotEmpty(parameter.getSourceExpression())) {
                parameterItemNode.put(PROPERTY_IOPARAMETER_SOURCE_EXPRESSION, parameter.getSourceExpression());
            } else {
                parameterItemNode.putNull(PROPERTY_IOPARAMETER_SOURCE_EXPRESSION);
            }

            itemsNode.add(parameterItemNode);
        }

        parametersNode.put("totalCount", itemsNode.size());
        parametersNode.put(EDITOR_PROPERTIES_GENERAL_ITEMS, itemsNode);
        propertiesNode.put(propertyName, parametersNode);
    }

    protected FlowElement convertJsonToElement(JsonNode elementNode, JsonNode modelNode,
            Map<String, JsonNode> shapeMap) {
        CallActivity callActivity = new CallActivity();
        if (StringUtils.isNotEmpty(getPropertyValueAsString(PROPERTY_CALLACTIVITY_CALLEDELEMENT, elementNode))) {
            callActivity
                    .setCalledElement(getPropertyValueAsString(PROPERTY_CALLACTIVITY_CALLEDELEMENT, elementNode));
        }

        callActivity.getInParameters().addAll(convertToIOParameters(PROPERTY_CALLACTIVITY_IN, elementNode));
        callActivity.getOutParameters().addAll(convertToIOParameters(PROPERTY_CALLACTIVITY_OUT, elementNode));

        return callActivity;
    }

    private List<IOParameter> convertToIOParameters(String propertyName, JsonNode elementNode) {
        List<IOParameter> ioParameters = new ArrayList<IOParameter>();
        JsonNode parametersNode = getProperty(propertyName, elementNode);
        if (parametersNode != null) {
            JsonNode itemsArrayNode = parametersNode.get(EDITOR_PROPERTIES_GENERAL_ITEMS);
            if (itemsArrayNode != null) {
                for (JsonNode itemNode : itemsArrayNode) {
                    JsonNode sourceNode = itemNode.get(PROPERTY_IOPARAMETER_SOURCE);
                    JsonNode sourceExpressionNode = itemNode.get(PROPERTY_IOPARAMETER_SOURCE_EXPRESSION);
                    if ((sourceNode != null && StringUtils.isNotEmpty(sourceNode.asText()))
                            || (sourceExpressionNode != null
                                    && StringUtils.isNotEmpty(sourceExpressionNode.asText()))) {

                        IOParameter parameter = new IOParameter();
                        if (StringUtils.isNotEmpty(getValueAsString(PROPERTY_IOPARAMETER_SOURCE, itemNode))) {
                            parameter.setSource(getValueAsString(PROPERTY_IOPARAMETER_SOURCE, itemNode));
                        }
                        if (StringUtils
                                .isNotEmpty(getValueAsString(PROPERTY_IOPARAMETER_SOURCE_EXPRESSION, itemNode))) {
                            parameter.setSourceExpression(
                                    getValueAsString(PROPERTY_IOPARAMETER_SOURCE_EXPRESSION, itemNode));
                        }
                        if (StringUtils.isNotEmpty(getValueAsString(PROPERTY_IOPARAMETER_TARGET, itemNode))) {
                            parameter.setTarget(getValueAsString(PROPERTY_IOPARAMETER_TARGET, itemNode));
                        }
                        ioParameters.add(parameter);
                    }
                }
            }
        }
        return ioParameters;
    }
}