org.apache.tika.parser.iwork.KeynoteContentHandler Maven / Gradle / Ivy
/*
* 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 org.apache.tika.parser.iwork;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.sax.XHTMLContentHandler;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
class KeynoteContentHandler extends DefaultHandler {
public final static String PRESENTATION_WIDTH = "slides-width";
public final static String PRESENTATION_HEIGHT = "slides-height";
private final XHTMLContentHandler xhtml;
private final Metadata metadata;
private boolean inSlide = false;
private boolean inTheme = false;
private boolean inTitle = false;
private boolean inBody = false;
private String tableId;
private Integer numberOfColumns = null;
private Integer currentColumn = null;
private boolean inMetadata = false;
private boolean inMetaDataTitle = false;
private boolean inMetaDataAuthors = false;
private boolean inParsableText = false;
private int numberOfSlides = 0;
KeynoteContentHandler(XHTMLContentHandler xhtml, Metadata metadata) {
this.xhtml = xhtml;
this.metadata = metadata;
}
@Override
public void endDocument() throws SAXException {
metadata.set(Metadata.SLIDE_COUNT, String.valueOf(numberOfSlides));
}
@Override
public void startElement(
String uri, String localName, String qName, Attributes attributes)
throws SAXException {
if ("key:theme".equals(qName)) {
inTheme = true;
} else if ("key:slide".equals(qName)) {
inSlide = true;
numberOfSlides++;
xhtml.startElement("div");
} else if ("key:title-placeholder".equals(qName) && inSlide) {
inTitle = true;
xhtml.startElement("h1");
} else if ("sf:sticky-note".equals(qName) && inSlide) {
xhtml.startElement("p");
} else if ("key:notes".equals(qName) && inSlide) {
xhtml.startElement("p");
} else if ("key:body-placeholder".equals(qName) && inSlide) {
xhtml.startElement("p");
inBody = true;
} else if ("key:size".equals(qName) && !inTheme) {
String width = attributes.getValue("sfa:w");
String height = attributes.getValue("sfa:h");
metadata.set(PRESENTATION_WIDTH, width);
metadata.set(PRESENTATION_HEIGHT, height);
} else if ("sf:text-body".equals(qName)) {
inParsableText = true;
} else if ("key:metadata".equals(qName)) {
inMetadata = true;
} else if (inMetadata && "key:title".equals(qName)) {
inMetaDataTitle = true;
} else if (inMetadata && "key:authors".equals(qName)) {
inMetaDataAuthors = true;
} else if (inMetaDataTitle && "key:string".equals(qName)) {
metadata.set(Metadata.TITLE, attributes.getValue("sfa:string"));
} else if (inMetaDataAuthors && "key:string".equals(qName)) {
metadata.add(Metadata.AUTHOR, attributes.getValue("sfa:string"));
} else if (inSlide && "sf:tabular-model".equals(qName)) {
tableId = attributes.getValue("sfa:ID");
xhtml.startElement("table");
} else if (tableId != null && "sf:columns".equals(qName)) {
numberOfColumns = Integer.parseInt(attributes.getValue("sf:count"));
currentColumn = 0;
} else if (tableId != null && "sf:ct".equals(qName)) {
parseTableData(attributes.getValue("sfa:s"));
} else if (tableId != null && "sf:n".equals(qName)) {
parseTableData(attributes.getValue("sf:v"));
}
}
@Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
if ("key:theme".equals(qName)) {
inTheme = false;
} else if ("key:slide".equals(qName)) {
inSlide = false;
xhtml.endElement("div");
} else if ("key:title-placeholder".equals(qName) && inSlide) {
inTitle = false;
xhtml.endElement("h1");
} else if ("sf:sticky-note".equals(qName) && inSlide) {
xhtml.endElement("p");
} else if ("key:notes".equals(qName) && inSlide) {
xhtml.endElement("p");
} else if ("key:body-placeholder".equals(qName) && inSlide) {
xhtml.endElement("p");
inBody = false;
} else if ("sf:text-body".equals(qName)) {
inParsableText = false;
} else if ("key:metadata".equals(qName)) {
inMetadata = false;
} else if (inMetadata && "key:title".equals(qName)) {
inMetaDataTitle = false;
} else if (inMetadata && "key:authors".equals(qName)) {
inMetaDataAuthors = false;
} else if (inSlide && "sf:tabular-model".equals(qName)) {
xhtml.endElement("table");
tableId = null;
numberOfColumns = null;
currentColumn = null;
}
}
@Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (inParsableText && inSlide && length != 0) {
xhtml.characters(ch, start, length);
}
}
private void parseTableData(String value) throws SAXException {
if (currentColumn == 0) {
xhtml.startElement("tr");
}
xhtml.element("td", value);
if (currentColumn.equals(numberOfColumns)) {
xhtml.endElement("tr");
}
}
}