/**
* Copyright 2007-2008 非也
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation。
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses. *
*/
package org.fireflow.engine.definition;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.fireflow.model.WorkflowProcess;
import org.fireflow.model.io.Dom4JFPDLParser;
import org.fireflow.model.io.Dom4JFPDLSerializer;
import org.fireflow.model.io.FPDLParserException;
import org.fireflow.model.io.FPDLSerializerException;
/**
* 流程定义对象，
* 映射到表T_FF_DF_WORKFLOWDEF
* @author 非也,nychen2000@163.com
*/
public class WorkflowDefinition extends WorkflowDefinitionInfo{
protected transient WorkflowProcess workflowProcess;
protected String processContent; //流程定义文件的内容
public String getProcessContent() {
return processContent;
}
public void setProcessContent(String processContent) {
this.processContent = processContent;
}
/**
* 获取业务流程对象
* @return
* @throws RuntimeException
*/
public WorkflowProcess getWorkflowProcess() throws RuntimeException{
if (workflowProcess == null) {
if (this.processContent != null && !this.processContent.trim().equals("")) {
ByteArrayInputStream in = null;
try {
Dom4JFPDLParser parser = new Dom4JFPDLParser();//采用dom4j来解析xml
in = new ByteArrayInputStream(this.processContent.getBytes("utf-8"));
this.workflowProcess = parser.parse(in);
} catch (UnsupportedEncodingException ex) {
Logger.getLogger(WorkflowDefinition.class.getName()).log(Level.SEVERE, null, ex);
throw new RuntimeException(ex.getMessage());
} catch (IOException ex) {
Logger.getLogger(WorkflowDefinition.class.getName()).log(Level.SEVERE, null, ex);
throw new RuntimeException(ex.getMessage());
}
catch(FPDLParserException ex){
Logger.getLogger(WorkflowDefinition.class.getName()).log(Level.SEVERE, null, ex);
throw new RuntimeException(ex.getMessage());
} finally {
try {
in.close();
} catch (IOException ex) {
Logger.getLogger(WorkflowDefinition.class.getName()).log(Level.SEVERE, null, ex);
}
}
}
}
return workflowProcess;
}
/**
* @param process
* @throws RuntimeException
*/
public void setWorkflowProcess(WorkflowProcess process) throws RuntimeException {
try {
this.workflowProcess = process;
this.processId = workflowProcess.getId();
this.name = workflowProcess.getName();
this.displayName = workflowProcess.getDisplayName();
this.description = workflowProcess.getDescription();
Dom4JFPDLSerializer ser = new Dom4JFPDLSerializer();
ByteArrayOutputStream out = new ByteArrayOutputStream();
ser.serialize(workflowProcess, out);
this.processContent = out.toString("utf-8");
} catch (FPDLSerializerException ex) {
Logger.getLogger(WorkflowDefinition.class.getName()).log(Level.SEVERE, null, ex);
throw new RuntimeException(ex.toString());
} catch (IOException ex) {
Logger.getLogger(WorkflowDefinition.class.getName()).log(Level.SEVERE, null, ex);
throw new RuntimeException(ex.toString());
}
}
}