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Diffstat (limited to 'xmerge/java/org/openoffice/xmerge/converter/xml/sxw/pocketword/DocumentSerializerImpl.java')
| -rw-r--r-- | xmerge/java/org/openoffice/xmerge/converter/xml/sxw/pocketword/DocumentSerializerImpl.java | 437 |
1 files changed, 437 insertions, 0 deletions
diff --git a/xmerge/java/org/openoffice/xmerge/converter/xml/sxw/pocketword/DocumentSerializerImpl.java b/xmerge/java/org/openoffice/xmerge/converter/xml/sxw/pocketword/DocumentSerializerImpl.java new file mode 100644 index 000000000000..2604e903c564 --- /dev/null +++ b/xmerge/java/org/openoffice/xmerge/converter/xml/sxw/pocketword/DocumentSerializerImpl.java @@ -0,0 +1,437 @@ +/************************************************************************ + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + + +package org.openoffice.xmerge.converter.xml.sxw.pocketword; + +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; +import org.w3c.dom.NamedNodeMap; +import org.w3c.dom.Element; + +import org.openoffice.xmerge.ConvertData; +import org.openoffice.xmerge.ConvertException; +import org.openoffice.xmerge.Document; +import org.openoffice.xmerge.DocumentSerializer; + +import org.openoffice.xmerge.converter.xml.OfficeConstants; +import org.openoffice.xmerge.converter.xml.sxw.SxwDocument; + +import org.openoffice.xmerge.converter.xml.ParaStyle; +import org.openoffice.xmerge.converter.xml.TextStyle; +import org.openoffice.xmerge.converter.xml.StyleCatalog; + +import java.io.OutputStream; +import java.io.ByteArrayOutputStream; +import java.io.IOException; + + +/** + * <p>Pocket Word implementation of <code>DocumentDeserializer</code> + * for use by {@link + * org.openoffice.xmerge.converter.xml.sxw.pocketword.PluginFactoryImpl + * PluginFactoryImpl}.</p> + * + * <p>This converts an OpenOffice Writer XML files to a Pocket Word file<.</p> + * + * @author Mark Murnane + * @version 1.1 + */ +public final class DocumentSerializerImpl + implements DocumentSerializer, OfficeConstants { + + private PocketWordDocument pswDoc; + private SxwDocument sxwDoc; + + private StyleCatalog styleCat = null; + + private boolean inList = false; + + + /** + * <p>Initialises a new <code>DocumentSerializerImpl</code> using the.<br> + * supplied <code>Document</code></p> + * + * <p>The supplied document should be an {@link + * org.openoffice.xmerge.converter.xml.sxw.SxwDocument SxwDocument} + * object.</p> + * + * @param document The <code>Document</code> to convert. + */ + public DocumentSerializerImpl(Document doc) { + sxwDoc = (SxwDocument)doc; + pswDoc = new PocketWordDocument(sxwDoc.getName()); + } + + + /** + * <p>Convert the data passed into the <code>DocumentSerializerImpl</code> + * constructor into Pocket Word format.</p> + * + * <p>This method may or may not be thread-safe. It is expected + * that the user code does not call this method in more than one + * thread. And for most cases, this method is only done once.</p> + * + * @return <code>ConvertData</code> object to pass back the + * converted data. + * + * @throws ConvertException If any conversion error occurs. + * @throws IOException If any I/O error occurs. + */ + public ConvertData serialize() throws IOException, ConvertException { + ConvertData cd = new ConvertData(); + + org.w3c.dom.Document doc = sxwDoc.getContentDOM(); + + // Load any style info before traversing the document content tree + loadStyles(); + + NodeList list = doc.getElementsByTagName(TAG_OFFICE_BODY); + + int len = list.getLength(); + if (len > 0) { + Node node = list.item(0); + traverseBody(node); + } + + cd.addDocument(pswDoc); + + return cd; + } + + + /* + * Handles the loading of defined styles from the style.xml file as well + * as automatic styles from the content.xml file. + * + * Any change to a defined style, such as a short bold section, falls into + * the latter category. + */ + private void loadStyles() { + org.w3c.dom.Document contentDom = sxwDoc.getContentDOM(); + org.w3c.dom.Document styleDom = sxwDoc.getStyleDOM(); + + styleCat = new StyleCatalog(25); + + NodeList nl = null; + String families[] = new String[] { PocketWordConstants.TEXT_STYLE_FAMILY, + PocketWordConstants.PARAGRAPH_STYLE_FAMILY, + PocketWordConstants.PARAGRAPH_STYLE_FAMILY }; + Class classes[] = new Class[] { TextStyle.class, + ParaStyle.class, + TextStyle.class }; + + String[] styleTypes = new String[] { TAG_OFFICE_STYLES, + TAG_OFFICE_AUTOMATIC_STYLES, + TAG_OFFICE_MASTER_STYLES }; + + /* + * Documents converted from PSW -> SXW will not have a style.xml when + * being converted back to PSW. This would occur if a document was + * not modified within Writer between conversions. + * + * Any Writer modifications and saves create the style.xml and other + * portions of a complete Writer SXW file. + */ + if (styleDom != null) { + // Process the Style XML tree + for (int i = 0; i < styleTypes.length; i++ ) { + nl = styleDom.getElementsByTagName(styleTypes[i]); + if (nl.getLength() != 0) { + styleCat.add(nl.item(0), families, classes, null, false); + } + } + } + + /* + * Process the content XML for any other style info. + * Should only be automatic types here. + */ + for (int i = 0; i < styleTypes.length; i++ ) { + nl = contentDom.getElementsByTagName(styleTypes[i]); + if (nl.getLength() != 0) { + styleCat.add(nl.item(0), families, classes, null, false); + } + } + } + + + /* + * Process the office:body tag. + */ + private void traverseBody(Node node) throws IOException, ConvertException { + + if (node.hasChildNodes()) { + NodeList nList = node.getChildNodes(); + int len = nList.getLength(); + + for (int i = 0; i < len; i++) { + Node child = nList.item(i); + + if (child.getNodeType() == Node.ELEMENT_NODE) { + String nodeName = child.getNodeName(); + + if (nodeName.equals(TAG_PARAGRAPH) + || nodeName.equals(TAG_HEADING)) { + traverseParagraph(child); + } + + if (nodeName.equals(TAG_UNORDERED_LIST) || + nodeName.equals(TAG_ORDERED_LIST)) { + traverseList(child); + } + } + } + } + } + + + /* + * Process a text:p tag + */ + private void traverseParagraph(Node node) throws IOException, ConvertException { + String styleName = getAttribute(node, ATTRIBUTE_TEXT_STYLE_NAME); + + ParaStyle pstyle = (ParaStyle)styleCat.lookup(styleName, + PocketWordConstants.PARAGRAPH_STYLE_FAMILY, null, + ParaStyle.class); + if (pstyle != null) { + pstyle = (ParaStyle)pstyle.getResolved(); + } + + TextStyle tstyle = (TextStyle)styleCat.lookup(styleName, + PocketWordConstants.PARAGRAPH_STYLE_FAMILY, null, + TextStyle.class); + if (pstyle != null) { + tstyle = (TextStyle)tstyle.getResolved(); + } + + try { + pswDoc.addParagraph(pstyle, inList); + } + catch (Exception e) { + throw new ConvertException( + "Error adding paragraph to PocketWordDocument.\n" + + e.toString()); + } + + traverseParagraphContents(node, tstyle); + } + + + /* + * Process the contents of a paragraph. This method handles situations + * where the paragraph contains multiple children, each representing a + * differently formatted piece of text. + */ + private void traverseParagraphContents (Node node, TextStyle defTextStyle) + throws IOException, ConvertException { + // First up, get the style of this little bit + String styleName = getAttribute(node, ATTRIBUTE_TEXT_STYLE_NAME); + TextStyle tStyle = (TextStyle)styleCat.lookup(styleName, + PocketWordConstants.TEXT_STYLE_FAMILY, null, + TextStyle.class); + + if (tStyle == null) { + tStyle = defTextStyle; + } + + if (node.hasChildNodes()) { + NodeList nList = node.getChildNodes(); + int len = nList.getLength(); + + for (int i = 0; i < len; i++) { + + Node child = nList.item(i); + short nodeType = child.getNodeType(); + + switch (nodeType) { + case Node.TEXT_NODE: + String s = child.getNodeValue(); + if (s.length() > 0) { + try { + pswDoc.addParagraphData(s, tStyle); + } + catch (Exception e) { + throw new ConvertException( + "Error adding data to paragraph in " + + "PocketWordDocument.\n" + e.toString()); + + } + } + break; + + case Node.ELEMENT_NODE: + if (child.getNodeName().equals(TAG_SPACE)) { + StringBuffer sb = new StringBuffer(""); + int count = 1; + + NamedNodeMap map = child.getAttributes(); + + if (map.getLength() > 0) { + Node attr = map.getNamedItem(ATTRIBUTE_SPACE_COUNT); + count = Integer.parseInt(attr.getNodeValue().trim()); + } + + for ( ; count > 0; count--) { + sb.append(" "); + } + + /* + * May want to look at style info for spaces. Could + * be important when calculating font metrics. + */ + try { + pswDoc.addParagraphData(sb.toString(), tStyle); + } + catch (Exception e) { + throw new ConvertException( + "Error adding data to paragraph in " + + "PocketWordDocument.\n" + e.toString()); + + } + } + else if (child.getNodeName().equals(TAG_TAB_STOP)) { + try { + pswDoc.addParagraphData("\t", tStyle); + } + catch (Exception e) { + throw new ConvertException( + "Error adding data to paragraph in " + + "PocketWordDocument.\n" + e.toString()); + + } + } + else if (child.getNodeName().equals(TAG_LINE_BREAK)) { + /* + * Pocket Word does not support soft line breaks. + * They are just new paragraphs. + */ + } + else if (child.getNodeName().equals(TAG_SPAN)) { + /* + * This is where the interesting ones, i.e. format + * changes occur. + */ + traverseParagraphContents (child, defTextStyle); + } + else if (child.getNodeName().equals(TAG_HYPERLINK)) { + traverseParagraphContents (child, defTextStyle); + } + else { + // Should maybe have a default in here. + } + break; + default: + // Do nothing + } + } + } + else { + /* + * If the node has no children, then it is a blank paragraph, but + * they still require an entry in the Paragraph class to make sense. + */ + pswDoc.addParagraphData("", tStyle); + } + } + + + /* + * Process a text:ordered-list or text:unordered-list tag. Pocket Word has + * no concept of a list so there is no need to differentiate between the + * two. + * + * Each item on the list contains a text:p node. + */ + private void traverseList (Node node) throws IOException, ConvertException { + inList = true; + + if (node.hasChildNodes()) { + NodeList nList = node.getChildNodes(); + int len = nList.getLength(); + + for (int i = 0; i < len; i++) { + Node child = nList.item(i); + + if (child.getNodeType() == Node.ELEMENT_NODE) { + String nodeName = child.getNodeName(); + + if (nodeName.equals(TAG_LIST_ITEM)) { + traverseListItem(child); + } + } + } + } + + inList = false; + } + + + /* + * Process a text:list-item node. They usually contain have a single + * text:p child but can also have sections or other lists. + * + * For this case, only paragraphs are supported. + */ + private void traverseListItem (Node node) throws IOException, ConvertException { + if (node.hasChildNodes()) { + NodeList nList = node.getChildNodes(); + int len = nList.getLength(); + + for (int i = 0; i < len; i++) { + Node child = nList.item(i); + + if (child.getNodeType() == Node.ELEMENT_NODE) { + String nodeName = child.getNodeName(); + + if (nodeName.equals(TAG_PARAGRAPH)) { + traverseParagraph(child); + } + } + } + } + + } + + + /* + * Utility method to retrieve a Node attribute. + */ + private String getAttribute (Node node, String attribute) { + NamedNodeMap attrNodes = node.getAttributes(); + + if (attrNodes != null) { + Node attr = attrNodes.getNamedItem(attribute); + if (attr != null) { + return attr.getNodeValue(); + } + } + + return null; + } +} |