util4jaxpserializer.java.svn-base

Fire-Workflow-Engine-All-In-One-20090208 包含全部文档

/**
 * Copyright 2003-2008 陈乜云（非也,Chen Nieyun）
 * All rights reserved. 
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser 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.model.io;

import java.net.URL;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.fireflow.model.Duration;
import org.w3c.dom.Document;
import org.w3c.dom.Element;

/**
 *
 * @author chennieyun
 */
public class Util4JAXPSerializer {
    private static final DateFormat STANDARD_DF = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz");
    
    static Element addElement(Document w3cDoc,Element parent, String name){
        Element child = w3cDoc.createElementNS(parent.getNamespaceURI(),name);
        child.setPrefix(parent.getPrefix());
        return (Element)parent.appendChild(child);
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, Date value){
        return addElement(w3cDoc,parent, name, value, null);
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.  If the given value is null then the default value is
        used.  If the value is null then this method will not add the child
        element and will return null.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @param defaultValue The default value (if the value is null)
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, Date value,
    Date defaultValue){
        Element child = null;

        if(value == null){
            value = defaultValue;
        }

        if(value != null){
            child = addElement(w3cDoc,parent, name);
            child.setTextContent(STANDARD_DF.format(value));
        }

        return child;
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, String value){
        return addElement(w3cDoc,parent, name, value, null);
    }

//    static Element addElement(Element parent,String name,CDATA value){
//        org.w3c.dom.
//      Element child = null;
//
//      child = addElement(parent, name);
//      child.add(value);
//
//      return child;
//
//    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.  If the given value is null then the default value is
        used.  If the value is null then this method will not add the child
        element and will return null.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @param defaultValue The default value (if the value is null)
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, String value,
    String defaultValue){
        Element child = null;

        if(value == null){
            value = defaultValue;
        }

        if(value != null){
            child = addElement(w3cDoc,parent, name);
            child.setTextContent(value);
        }

        return child;
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, URL value){
        return addElement(w3cDoc,parent, name, value, null);
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.  If the given value is null then the default value is
        used.  If the value is null then this method will not add the child
        element and will return null.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @param defaultValue The default value (if the value is null)
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, URL value,
    URL defaultValue){
        Element child = null;

        if(value == null){
            value = defaultValue;
        }

        if(value != null){
            child = addElement(w3cDoc,parent, name);
            child.setTextContent(value.toString());
        }

        return child;
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @return The child element
    */

    static Element addElement(Document w3cDoc,Element parent, String name, Duration value){
        return addElement(w3cDoc,parent, name, value, null);
    }

    /** Add a child element with the specific name and the given value to
        the given parent element and return the child element.  This method
        will use the namespace of the parent element for the child element's
        namespace.  If the given value is null then the default value is
        used.  If the value is null then this method will not add the child
        element and will return null.

        @param parent The parent element
        @param name The new child element name
        @param value The value
        @param defaultValue The default value (if the value is null)
        @return The child element
    */
    static Element addElement(Document w3cDoc,Element parent, String name, Duration value,
    Duration defaultValue){
        Element child = null;

        if(value == null){
            value = defaultValue;
        }

        if(value != null){
            child = addElement(w3cDoc,parent, name);
            child.setTextContent(value.toString());
        }

        return child;
    }

}