Package org.openxml4j.samples.opc

Source Code of org.openxml4j.samples.opc.ModifyXMLContentWordprocessingMLDocument

/*
* Copyright (c) 2006, Wygwam
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* - Neither the name of Wygwam nor the names of its contributors may be
* used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package org.openxml4j.samples.opc;

import java.io.File;
import java.io.InputStream;
import java.util.List;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.Namespace;
import org.dom4j.QName;
import org.dom4j.io.SAXReader;
import org.openxml4j.opc.Package;
import org.openxml4j.opc.PackageAccess;
import org.openxml4j.opc.PackagePart;
import org.openxml4j.opc.PackageRelationship;
import org.openxml4j.opc.PackageRelationshipTypes;
import org.openxml4j.opc.StreamHelper;
import org.openxml4j.samples.DemoCore;

/**
* Modify the content of a package by retrieving the main document part and
* modifying its content.
*
* @author Julien Chable
* @version 0.1
*/
public class ModifyXMLContentWordprocessingMLDocument {

  @SuppressWarnings("unchecked")
  public static void main(String[] args) throws Exception {
    DemoCore demoCore = new DemoCore();

    // Open the package
    Package pkg = Package.open(demoCore.getTestRootPath() + "sample.docx",
        PackageAccess.READ_WRITE);

    // Get documents core document part relationship
    PackageRelationship coreDocumentRelationship = pkg
        .getRelationshipsByType(PackageRelationshipTypes.CORE_DOCUMENT)
        .getRelationship(0);

    // Get core document part from the relationship.
    PackagePart coreDocumentPart = pkg.getPart(coreDocumentRelationship);

    InputStream inStream = coreDocumentPart.getInputStream();
    SAXReader docReader = new SAXReader();
    Document doc = docReader.read(inStream);

    Namespace namespaceWordProcessingML = new Namespace("w",
        "http://schemas.openxmlformats.org/wordprocessingml/2006/main");
    Element bodyElement = doc.getRootElement().element(
        new QName("body", namespaceWordProcessingML));

    // Retrieves paragraph childs from body element
    List paragraphs = bodyElement.content();

    // Build a new paragraph element
    Element paragraph = DocumentHelper.createElement(new QName("p",
        namespaceWordProcessingML));
    Element run = paragraph.addElement(new QName("r",
        namespaceWordProcessingML));
    Element text = run
        .addElement(new QName("t", namespaceWordProcessingML));
    text.setText("New paragraph added with OpenXML4J !");

    // Add the newly created paragraph at the last position of paragraph
    // elements, just before the w:sectPr element
    paragraphs.add(paragraphs.size() - 1, paragraph);

    // Save back the content into the part
    StreamHelper.saveXmlInStream(doc, coreDocumentPart.getOutputStream());

    pkg.save(new File(demoCore.getTestRootPath() + "sample_output.docx"));
  }
}
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