| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the 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; |
| } |
| } |