com.lowagie.text.xml.XmlToXXX Maven / Gradle / Ivy
/*
* Copyright 2002 by Matt Benson.
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library 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 Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
package com.lowagie.text.xml;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.io.InputStream;
import java.io.OutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.PageSize;
import com.lowagie.text.Rectangle;
import com.lowagie.text.DocumentException;
/**
* Generates an specific file from an iText XML file.
*
* @version 1.0
* @author Matt Benson
*/
public abstract class XmlToXXX
{
protected Rectangle pageSize;
/**
* Construct an XmlToXXX with the default page size.
*/
public XmlToXXX()
{
this(PageSize.LETTER);
}//end default constructor
/**
* Construct an XmlToXXX with the specified page size.
* @param pageSize String page size name from
* com.lowagie.text.PageSize.
*/
public XmlToXXX(String pageSize)
{
this(getPageSize(pageSize));
}//end constructor(String)
private XmlToXXX(Rectangle pageSize)
{
this.pageSize = pageSize;
}//end constructor(Rectangle)
/**
* Parse the XML from the specified InputStream, writing to the
* specified OutputStream.
* @param in the InputStream from which the XML is read.
* @param out the OutputStream to which the result is written.
* @throws DocumentException if document errors occur.
*/
public final void parse(InputStream in, OutputStream out)
throws DocumentException
{
Document doc = new Document(pageSize);
addWriter(doc, out);
XmlParser.parse(doc, in);
}//end parse
private static Rectangle getPageSize(String pageSize)
{
Rectangle result = PageSize.LETTER;
Field fld = null;
try
{
fld = PageSize.class.getDeclaredField(pageSize.toUpperCase());
result = (fld != null
&& Modifier.isStatic(fld.getModifiers())
&& fld.getType().equals(Rectangle.class)) ? (Rectangle)(fld.get(null))
: result;
}//end try to get field
catch (Exception ex)
{
System.err.println(ex.getMessage());
}//end catch Exception
return result;
}//end getPageSize
/**
* Add a DocWriter for the specified Document and
* OutputStream.
* @param doc The document to which content will be added
* @param out The outputstream to which the document will be sent
* @throws DocumentException if document errors occur.
*/
protected abstract void addWriter(Document doc, OutputStream out)
throws DocumentException;
}//end class XmlToXXX