dynaformbean.java

来自「Java Pattern Oriented Framework (Jt) 是为了」· Java 代码 · 共 632 行 · 第 1/2 页

package Jt.wizard.struts;

import java.util.Collection;
import java.util.LinkedList;
import java.util.List;

import Jt.JtContext;
import Jt.JtFactory;
import Jt.JtMessage;
import Jt.JtObject;
import Jt.wizard.WizardConfig;
import Jt.xml.JDOMAdapter;

import org.apache.struts.action.ActionForm;
import org.jdom.Element;

/**
 * Handles Dyna Form Bean Descriptors
 */

public class DynaFormBean extends JtObject {
    private static final long serialVersionUID = 1L;
    public static final String READ = "READ";
    public static final String DELETE = "DELETE";
    public static final String UPDATE = "UPDATE";
    public static final String CREATE = "CREATE";
    private JtFactory factory = new JtFactory ();
    private WizardConfig config;
    
    private String type;
    private String name;
    private String delete;
    private String configFile;
    
    
    
    public String getConfigFile() {
        return configFile;
    }
    public void setConfigFile(String configFile) {
        this.configFile = configFile;
    }

    public String getDelete() {
        return "delete";
    }

    public void setDelete(String delete) {
        this.delete = this.delete; // null
    }

    public String getName() {
        return (name);
    }
    public void setName(String name) {
        this.name = name;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }


    private void handleUIError (String error) {
        Collection col;

        if (error == null)
            return;
        col = (Collection) this.getObjErrors();

        if (col == null) {
            col = new LinkedList ();
            setObjErrors (col);
        }
        col.add(error);

    }

        

    private Object buildFormBean (DynaDefinitionForm form) {

        JDOMAdapter adapter;
        Element element, actionElem, propertyElement;
        JtMessage msg = new JtMessage (JDOMAdapter.ADD_ELEMENT);
        JtFactory factory = new JtFactory ();
        DynaMapping mappings[];
        int i;
        
        
        
        if (form == null) {
            return (null);            
        } 

        
        /*
        type = (String) form.getType ();      
        if (type == null || type.equals ("")) {
            handleUIError ("Please enter a type.");
        }    
        */
        
        name = (String) form.getName ();      
        if (name == null || name.equals ("")) {
            handleUIError ("Please enter the name of the form bean.");
        } 

        
        if (getObjErrors() != null) {
            return (null);
        }
            
        
        adapter = (JDOMAdapter) factory.createObject (JDOMAdapter.JtCLASS_NAME);

        element = new Element ("form-bean");
        actionElem = element;

        element.setAttribute("name", name);
        element.setAttribute("type", "org.apache.struts.action.DynaActionForm");
        msg.setMsgContent (element);  
        mappings = form.getMappings();
        
        if (mappings != null) {
            for (i = 0; i < mappings.length; i++) {
                propertyElement = new Element ("form-property");
                if (mappings[i] == null)
                    continue;
                
                propertyElement.setAttribute("name", mappings[i].getName());
                propertyElement.setAttribute("type", mappings[i].getType()); 
                propertyElement.setAttribute("initial", mappings[i].getInitial());                
                element.addContent(propertyElement);
            }     
        }
        
        factory.sendMessage(adapter, msg);  

        return (actionElem);
    }

    
    private Object findFormBean (String name) {
        JDOMAdapter adapter = new JDOMAdapter ();
        JtMessage msg = new JtMessage (JDOMAdapter.GET_CHILDREN);
        JtFactory factory = new JtFactory ();
        Element elem;
        List children;
        int i;
        String tmp;
                
        if (name == null)
            return null;
        
        config = (WizardConfig) factory.createObject(WizardConfig.JtCLASS_NAME);
        
        if (config == null) {
            handleError ("Unable to create configuration class.");
            return (null);
        }
        factory.sendMessage(config, new JtMessage (JtObject.JtINITIALIZE));

        
        adapter.setPath(config.getConfigPath());
        
        msg.setMsgContent("struts-config/form-beans");
        
        
        //adapter.setPath("c:/tmp/test.xml");
               
        factory.sendMessage (adapter, new JtMessage (JDOMAdapter.READ_FILE));
        
        children = (List) factory.sendMessage (adapter, msg);
        if (children == null)
            return (null);
        
        
        for (i = 0; i < children.size(); i++) {
            elem = (Element) children.get(i);
            
            tmp = elem.getAttributeValue("name");
            
            if (name.equals(tmp)) {

                //elem.getParentElement();
                //elem.detach ();
                //factory.sendMessage (adapter, msg1);
                return (elem);               
                
            }
        }        
       
        return (null);
    }
    
     
    private Object deleteFormBean (DynaDefinitionForm form) {
        JDOMAdapter adapter = new JDOMAdapter ();
        JtMessage msg = new JtMessage (JDOMAdapter.GET_CHILDREN);
        JtMessage msg1 = new JtMessage (JDOMAdapter.SAVE_FILE);
        JtFactory factory = new JtFactory ();
        Element elem;
        List children;
        int i;
        String tmp;
        String name;
                
        if (form == null)
            return null;
        
        name = form.getName();
        
        if (name == null)
            return null;
        
        config = (WizardConfig) factory.createObject(WizardConfig.JtCLASS_NAME);
        
        if (config == null) {
            handleError ("Unable to create configuration class");
            return (null);
        }
        factory.sendMessage(config, new JtMessage (JtObject.JtINITIALIZE));

        
        adapter.setPath(config.getConfigPath());
        
        msg.setMsgContent("struts-config/form-beans");
        //adapter.setPath("c:/tmp/test.xml");
               
        factory.sendMessage (adapter, new JtMessage (JDOMAdapter.READ_FILE));
        
        if (adapter.getObjException() != null) {
            this.setObjException(adapter.getObjException());
            return (null);
        } 
        
        children = (List) factory.sendMessage (adapter, msg);
        if (children == null)
            return (null);
        
        
        for (i = 0; i < children.size(); i++) {
            elem = (Element) children.get(i);
            
            tmp = elem.getAttributeValue("name");
            
            if (name.equals(tmp)) {

                elem.getParentElement();
                elem.detach ();
                factory.sendMessage (adapter, msg1);
                return (null);               
                
            }
        }        
       
        return (null);
    }
 

    private Object createFormBean (DynaDefinitionForm form) {
        JDOMAdapter adapter = new JDOMAdapter ();
        JtMessage msg1 = new JtMessage (JDOMAdapter.SAVE_FILE);
        JtMessage msg2 = new JtMessage (JDOMAdapter.ADD_ELEMENT);
        JtFactory factory = new JtFactory ();
        Element newElem;
        String name;
                
        if (form == null)
            return null;
        
        name = form.getName();
        
        if (name == null)
            return null;
        
        
     
        if (findFormBean (name) != null) {
            handleUIError ("Form bean already exists");
            return null;
        }       
            

        newElem = (Element) buildFormBean (form);

        if (newElem == null) {
            handleError ("Unable to create the Form Bean.");
            return (null);
        }
        
        config = (WizardConfig) factory.createObject(WizardConfig.JtCLASS_NAME);
        
        if (config == null) {
            handleError ("Unable to create configuration class");
            return (null);
        }
        factory.sendMessage(config, new JtMessage (JtObject.JtINITIALIZE));

        
        adapter.setPath(config.getConfigPath());
        
        //adapter.setPath("c:/tmp/test.xml");
        factory.sendMessage (adapter, new JtMessage (JDOMAdapter.READ_FILE));
        
        if (adapter.getObjException() != null) {
            this.setObjException(adapter.getObjException());
            return (null);
        } 
        
        msg2.setMsgData("struts-config/form-beans");