com.glaf.jbpm.action.InvokerAction.java Source code

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Here is the source code for com.glaf.jbpm.action.InvokerAction.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 com.glaf.jbpm.action;

import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.dom4j.Element;
import org.jbpm.JbpmException;
import org.jbpm.context.exe.ContextInstance;
import org.jbpm.graph.def.ActionHandler;
import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ExecutionContext;
import org.jbpm.graph.exe.ProcessInstance;
import org.springframework.util.MethodInvoker;

import com.glaf.core.util.ClassUtils;
import com.glaf.core.util.LogUtils;
import com.glaf.jbpm.util.Constant;
import com.glaf.jbpm.util.CustomFieldInstantiator;

@SuppressWarnings("unchecked")
public class InvokerAction implements ActionHandler {
    private static final Log logger = LogFactory.getLog(InvokerAction.class);

    private static final long serialVersionUID = 1L;

    protected transient Element elements;

    protected String className;

    protected String method;

    protected String description;

    protected String nodeType;

    protected boolean visible;

    protected boolean selected;

    public void execute(ExecutionContext ctx) {
        logger.debug("-------------------------------------------------------");
        logger.debug("--------------------InvokerAction----------------------");
        logger.debug("-------------------------------------------------------");

        if (StringUtils.isNotEmpty(className) && StringUtils.isNotEmpty(method)) {
            MethodInvoker methodInvoker = new MethodInvoker();
            Object target = ClassUtils.instantiateObject(className);

            Map<String, Object> params = new java.util.HashMap<String, Object>();

            ContextInstance contextInstance = ctx.getContextInstance();
            Map<String, Object> variables = contextInstance.getVariables();
            if (variables != null && variables.size() > 0) {
                Set<Entry<String, Object>> entrySet = variables.entrySet();
                for (Entry<String, Object> entry : entrySet) {
                    String name = entry.getKey();
                    Object value = entry.getValue();
                    if (name != null && value != null && params.get(name) == null) {
                        params.put(name, value);
                    }
                }
            }

            if (elements != null) {
                if (LogUtils.isDebug()) {
                    logger.debug("elements:" + elements.asXML());
                }
                Object object = CustomFieldInstantiator.getValue(Map.class, elements);
                if (object instanceof Map) {
                    Map<String, Object> paramMap = (Map<String, Object>) object;
                    Set<Entry<String, Object>> entrySet = paramMap.entrySet();
                    for (Entry<String, Object> entry : entrySet) {
                        String key = entry.getKey();
                        Object value = entry.getValue();
                        if (key != null && value != null) {
                            params.put(key, value);
                        }
                    }
                }
            }

            Map<String, Object> varMap = contextInstance.getVariables();
            if (varMap != null && varMap.size() > 0) {
                Set<Entry<String, Object>> entrySet = varMap.entrySet();
                for (Entry<String, Object> entry : entrySet) {
                    String variableName = entry.getKey();
                    if (params.get(variableName) == null) {
                        Object value = contextInstance.getVariable(variableName);
                        params.put(variableName, value);
                    }
                }
            }

            Object rowId = contextInstance.getVariable(Constant.PROCESS_ROWID);
            params.put("rowId", rowId);

            ProcessInstance processInstance = ctx.getProcessInstance();
            ProcessDefinition processDefinition = processInstance.getProcessDefinition();
            Long processInstanceId = processInstance.getId();
            params.put("processInstanceId", processInstanceId);
            params.put("processName", processDefinition.getName());
            params.put("processDefinitionId", processDefinition.getId());
            params.put("processDefinition", processDefinition);
            params.put("processInstance", processInstance);

            Object[] arguments = { params, ctx.getJbpmContext().getConnection() };
            methodInvoker.setArguments(arguments);
            methodInvoker.setTargetObject(target);
            methodInvoker.setTargetMethod(method);
            try {
                methodInvoker.prepare();
                methodInvoker.invoke();
            } catch (Exception ex) {
                if (LogUtils.isDebug()) {
                    ex.printStackTrace();
                    logger.debug(ex);
                }
                throw new JbpmException(ex);
            }
        }

    }

    public String getClassName() {
        return className;
    }

    public String getDescription() {
        return description;
    }

    public Element getElements() {
        return elements;
    }

    public String getMethod() {
        return method;
    }

    public String getNodeType() {
        return nodeType;
    }

    public boolean isSelected() {
        return selected;
    }

    public boolean isVisible() {
        return visible;
    }

    public void setClassName(String className) {
        this.className = className;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public void setElements(Element elements) {
        this.elements = elements;
    }

    public void setMethod(String method) {
        this.method = method;
    }

    public void setNodeType(String nodeType) {
        this.nodeType = nodeType;
    }

    public void setSelected(boolean selected) {
        this.selected = selected;
    }

    public void setVisible(boolean visible) {
        this.visible = visible;
    }

}