8a6e654344
git-svn-id: svn://svn.code.sf.net/p/writer2latex/code/trunk@164 f0f2a975-2e09-46c8-9428-3b39399b9f3c
104 lines
No EOL
3.4 KiB
Java
104 lines
No EOL
3.4 KiB
Java
/************************************************************************
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*
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* EmbeddedXMLObject.java
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* Copyright: 2002-2014 by Henrik Just
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*
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* All Rights Reserved.
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*
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* Version 1.4 (2014-08-25)
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*
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*/
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package writer2latex.office;
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import java.io.IOException;
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import org.w3c.dom.Document;
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import org.xml.sax.SAXException;
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import writer2latex.util.SimpleZipReader;
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/** This class represents those embedded objects in an ODF document that have an XML representation:
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* Formulas, charts, spreadsheets, text, drawings and presentations.
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* These object types are stored using a combination of content, settings and styles XML files.
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* The settings are application specific and ignored.
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*/
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public class EmbeddedXMLObject extends EmbeddedObject {
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// Byte entries for the XML streams of this object
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private byte[] contentBytes = null;
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private byte[] stylesBytes = null;
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// DOM trees representing the XML parts of this object
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protected Document contentDOM = null;
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protected Document stylesDOM = null;
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/** Read an object from an ODF package document
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*
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* @param sName The name of the object.
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* @param sType The MIME-type of the object.
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* @param source A ZIP reader providing the contents of the package
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*/
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protected EmbeddedXMLObject(String sName, String sType, SimpleZipReader source) {
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super(sName, sType);
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// Read the bytes, but defer parsing until required (at that point, the bytes are nullified)
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contentBytes = source.getEntry(sName+"/"+OfficeDocument.CONTENTXML);
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stylesBytes = source.getEntry(sName+"/"+OfficeDocument.STYLESXML);
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}
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/**
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* Returns the content data for this embedded object.
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*
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* @return DOM representation of "content.xml"
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*
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* @throws SAXException If any parser error occurs
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* @throws IOException If any IO error occurs
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*/
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public Document getContentDOM() throws SAXException, IOException {
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if (contentDOM==null) {
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contentDOM=getDOM(contentBytes);
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contentBytes=null;
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}
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return contentDOM;
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}
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/**
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* Returns the style data for this embedded object.
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*
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* @return DOM representation of "styles.xml"
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*
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* @throws SAXException If any parser error occurs
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* @throws IOException If any IO error occurs
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*/
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public Document getStylesDOM() throws SAXException, IOException {
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if (stylesDOM==null) {
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stylesDOM = getDOM(stylesBytes);
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stylesBytes=null;
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}
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return stylesDOM;
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}
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private Document getDOM(byte[] data) throws SAXException, IOException {
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if (data!=null) {
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return OfficeDocument.parse(data);
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}
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return null;
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}
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} |