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Diffstat (limited to 'reportbuilder/java/com/sun/star/report/pentaho/parser/office/DocumentContentReadHandler.java')
| -rw-r--r-- | reportbuilder/java/com/sun/star/report/pentaho/parser/office/DocumentContentReadHandler.java | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/reportbuilder/java/com/sun/star/report/pentaho/parser/office/DocumentContentReadHandler.java b/reportbuilder/java/com/sun/star/report/pentaho/parser/office/DocumentContentReadHandler.java new file mode 100644 index 000000000000..1f57c7c61205 --- /dev/null +++ b/reportbuilder/java/com/sun/star/report/pentaho/parser/office/DocumentContentReadHandler.java @@ -0,0 +1,236 @@ +/************************************************************************* + * + * 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 com.sun.star.report.pentaho.parser.office; + +import com.sun.star.report.pentaho.OfficeNamespaces; +import com.sun.star.report.pentaho.model.OfficeDocument; +import com.sun.star.report.pentaho.model.OfficeStylesCollection; +import com.sun.star.report.pentaho.parser.style.OfficeStylesReadHandler; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; + +import org.jfree.report.JFreeReport; + +import org.pentaho.reporting.libraries.resourceloader.Resource; +import org.pentaho.reporting.libraries.resourceloader.ResourceException; +import org.pentaho.reporting.libraries.resourceloader.ResourceKey; +import org.pentaho.reporting.libraries.resourceloader.ResourceKeyCreationException; +import org.pentaho.reporting.libraries.resourceloader.ResourceManager; +import org.pentaho.reporting.libraries.xmlns.parser.AbstractXmlReadHandler; +import org.pentaho.reporting.libraries.xmlns.parser.XmlReadHandler; + +import org.xml.sax.Attributes; +import org.xml.sax.SAXException; + +/** + * This is the root handler for the document context. The + * 'office:document-context' element is encountered, if the document is split + * into separate files. + * <p/> + * Alternativly, there is the option to keep everything in one file. The root + * element for that format is 'office:document'. + */ +public class DocumentContentReadHandler extends AbstractXmlReadHandler +{ + + private static final Log LOGGER = LogFactory.getLog(DocumentContentReadHandler.class); + private OfficeDocument report; + private FontFaceDeclsReadHandler fontFaceReadHandler; + private BodyReadHandler bodyReadHandler; + private OfficeStylesCollection officeStylesCollection; + + public DocumentContentReadHandler() + { + } + + /** + * Starts parsing. + * + * @param attrs the attributes. + * @throws org.xml.sax.SAXException if there is a parsing error. + */ + protected void startParsing(final Attributes attrs) + throws SAXException + { + super.startParsing(attrs); + // parse the external 'styles.xml' if it exists + // parse the external 'meta.xml' if it exists + // parse the external 'settings.xml' if it exists + this.report = parseContentXml(); + this.report.setVirtual(true); + this.report.setType("document-content"); + this.report.setNamespace(OfficeNamespaces.OFFICE_NS); + this.report.setVirtual(true); + this.officeStylesCollection = parseStylesXml(); + } + + private OfficeStylesCollection parseStylesXml() + { + final ResourceKey contextKey = getRootHandler().getContext(); + final ResourceManager resourceManager = getRootHandler().getResourceManager(); + + try + { + final ResourceKey key = + resourceManager.deriveKey(contextKey, "styles.xml"); + final Resource resource = + resourceManager.create(key, contextKey, OfficeStylesCollection.class); + final OfficeStylesCollection styles = + (OfficeStylesCollection) resource.getResource(); + if (styles != null) + { + return styles; + } + } + catch (ResourceKeyCreationException e) + { + // ignore .. + LOGGER.debug("Failed to create resource-key for 'styles.xml'. Ignoring.", e); + } + catch (ResourceException e) + { + // ignore .. + LOGGER.debug("Failed to parse resource for 'styles.xml'. Ignoring.", e); + } + + return new OfficeStylesCollection(); + } + + private OfficeDocument parseContentXml() + { + // Check whether this is a content.xml. + if (!OfficeNamespaces.OFFICE_NS.equals(getUri()) || "document-content".equals(getTagName())) + { + return new OfficeDocument(); + } + + // we may have to parse an existing content.xml. + final ResourceKey contextKey = getRootHandler().getContext(); + final ResourceManager resourceManager = getRootHandler().getResourceManager(); + try + { + final ResourceKey key = + resourceManager.deriveKey(contextKey, "content.xml"); + final Resource resource = + resourceManager.create(key, contextKey, JFreeReport.class); + final OfficeDocument doc = (OfficeDocument) resource.getResource(); + if (doc != null) + { + return doc; + } + } + catch (ResourceKeyCreationException e) + { + // ignore .. + LOGGER.debug("Failed to create resource-key for 'content.xml'. Ignoring."); + } + catch (ResourceException e) + { + // ignore .. + LOGGER.debug("Failed to parse resource for 'content.xml'. Ignoring."); + } + return new OfficeDocument(); + + } + + /** + * Returns the handler for a child element. + * + * @param tagName the tag name. + * @param atts the attributes. + * @return the handler or null, if the tagname is invalid. + * + * @throws org.xml.sax.SAXException if there is a parsing error. + */ + protected XmlReadHandler getHandlerForChild(final String uri, + final String tagName, + final Attributes atts) + throws SAXException + { + if (OfficeNamespaces.OFFICE_NS.equals(uri)) + { + if ("font-face-decls".equals(tagName)) + { + if (fontFaceReadHandler == null) + { + fontFaceReadHandler = new FontFaceDeclsReadHandler(officeStylesCollection.getFontFaceDecls()); + } + return fontFaceReadHandler; + } + else if ("automatic-styles".equals(tagName)) + { + return new OfficeStylesReadHandler(officeStylesCollection.getAutomaticStyles()); + } + else if ("styles".equals(tagName)) + { + return new OfficeStylesReadHandler(officeStylesCollection.getCommonStyles()); + } + else if ("master-styles".equals(tagName)) + { + return new MasterStylesReadHandler(officeStylesCollection.getMasterStyles()); + } + else if ("body".equals(tagName)) + { + bodyReadHandler = new BodyReadHandler(); + return bodyReadHandler; + } + } + return null; + } + + /** + * Done parsing. + * + * @throws org.xml.sax.SAXException if there is a parsing error. + */ + protected void doneParsing() + throws SAXException + { + // The office-document is the only node of the report. It allows us to + // switch the layout-processing implementation later on. + + report.setStylesCollection(officeStylesCollection); + + if (bodyReadHandler != null) + { + report.addNode(bodyReadHandler.getElement()); + } + } + + /** + * Returns the object for this element or null, if this element does not + * create an object. + * + * @return the object. + */ + public Object getObject() + throws SAXException + { + return report; + } +} |