com.aspose.words

Interface IDocumentPartSavingCallback

public interface IDocumentPartSavingCallback

Implement this interface if you want to receive notifications and control how Aspose.Words saves document parts when exporting a document to SaveFormat.HTML or SaveFormat.EPUB format.

Examples:

Shows how to split a document into parts and save them.

 
 public void documentPartsFileNames() throws Exception {
     Document doc = new Document(getMyDir() + "Rendering.docx");
     String outFileName = "SavingCallback.DocumentPartsFileNames.html";

     // Create an "HtmlFixedSaveOptions" object, which we can pass to the document's "Save" method
     // to modify how we convert the document to HTML.
     HtmlSaveOptions options = new HtmlSaveOptions();

     // If we save the document normally, there will be one output HTML
     // document with all the source document's contents.
     // Set the "DocumentSplitCriteria" property to "DocumentSplitCriteria.SectionBreak" to
     // save our document to multiple HTML files: one for each section.
     options.setDocumentSplitCriteria(DocumentSplitCriteria.SECTION_BREAK);

     // Assign a custom callback to the "DocumentPartSavingCallback" property to alter the document part saving logic.
     options.setDocumentPartSavingCallback(new SavedDocumentPartRename(outFileName, options.getDocumentSplitCriteria()));

     // If we convert a document that contains images into html, we will end up with one html file which links to several images.
     // Each image will be in the form of a file in the local file system.
     // There is also a callback that can customize the name and file system location of each image.
     options.setImageSavingCallback(new SavedImageRename(outFileName));

     doc.save(getArtifactsDir() + outFileName, options);
 }

 /// <summary>
 /// Sets custom filenames for output documents that the saving operation splits a document into.
 /// </summary>
 private static class SavedDocumentPartRename implements IDocumentPartSavingCallback {
     public SavedDocumentPartRename(String outFileName, int documentSplitCriteria) {
         mOutFileName = outFileName;
         mDocumentSplitCriteria = documentSplitCriteria;
     }

     public void documentPartSaving(DocumentPartSavingArgs args) throws Exception {
         // We can access the entire source document via the "Document" property.
         Assert.assertTrue(args.getDocument().getOriginalFileName().endsWith("Rendering.docx"));

         String partType = "";

         switch (mDocumentSplitCriteria) {
             case DocumentSplitCriteria.PAGE_BREAK:
                 partType = "Page";
                 break;
             case DocumentSplitCriteria.COLUMN_BREAK:
                 partType = "Column";
                 break;
             case DocumentSplitCriteria.SECTION_BREAK:
                 partType = "Section";
                 break;
             case DocumentSplitCriteria.HEADING_PARAGRAPH:
                 partType = "Paragraph from heading";
                 break;
         }

         String partFileName = MessageFormat.format("{0} part {1}, of type {2}.{3}", mOutFileName, ++mCount, partType, FilenameUtils.getExtension(args.getDocumentPartFileName()));

         // Below are two ways of specifying where Aspose.Words will save each part of the document.
         // 1 -  Set a filename for the output part file:
         args.setDocumentPartFileName(partFileName);

         // 2 -  Create a custom stream for the output part file:
         try (FileOutputStream outputStream = new FileOutputStream(getArtifactsDir() + partFileName)) {
             args.setDocumentPartStream(outputStream);
         }

         Assert.assertNotNull(args.getDocumentPartStream());
         Assert.assertFalse(args.getKeepDocumentPartStreamOpen());
     }

     private int mCount;
     private final String mOutFileName;
     private final int mDocumentSplitCriteria;
 }

 /// <summary>
 /// Sets custom filenames for image files that an HTML conversion creates.
 /// </summary>
 public static class SavedImageRename implements IImageSavingCallback {
     public SavedImageRename(String outFileName) {
         mOutFileName = outFileName;
     }

     public void imageSaving(ImageSavingArgs args) throws Exception {
         String imageFileName = MessageFormat.format("{0} shape {1}, of type {2}.{3}", mOutFileName, ++mCount, args.getCurrentShape().getShapeType(), FilenameUtils.getExtension(args.getImageFileName()));

         // Below are two ways of specifying where Aspose.Words will save each part of the document.
         // 1 -  Set a filename for the output image file:
         args.setImageFileName(imageFileName);

         // 2 -  Create a custom stream for the output image file:
         args.setImageStream(new FileOutputStream(getArtifactsDir() + imageFileName));

         Assert.assertNotNull(args.getImageStream());
         Assert.assertTrue(args.isImageAvailable());
         Assert.assertFalse(args.getKeepImageStreamOpen());
     }

     private int mCount;
     private final String mOutFileName;
 }
 
 

Method Summary

Modifier and Type	Method and Description
void	documentPartSaving(DocumentPartSavingArgs args) Called when Aspose.Words is about to save a document part.

Method Detail

documentPartSaving

void documentPartSaving(DocumentPartSavingArgs args)
                 throws java.lang.Exception

Called when Aspose.Words is about to save a document part.

Examples:

Shows how to split a document into parts and save them.

 
 public void documentPartsFileNames() throws Exception {
     Document doc = new Document(getMyDir() + "Rendering.docx");
     String outFileName = "SavingCallback.DocumentPartsFileNames.html";

     // Create an "HtmlFixedSaveOptions" object, which we can pass to the document's "Save" method
     // to modify how we convert the document to HTML.
     HtmlSaveOptions options = new HtmlSaveOptions();

     // If we save the document normally, there will be one output HTML
     // document with all the source document's contents.
     // Set the "DocumentSplitCriteria" property to "DocumentSplitCriteria.SectionBreak" to
     // save our document to multiple HTML files: one for each section.
     options.setDocumentSplitCriteria(DocumentSplitCriteria.SECTION_BREAK);

     // Assign a custom callback to the "DocumentPartSavingCallback" property to alter the document part saving logic.
     options.setDocumentPartSavingCallback(new SavedDocumentPartRename(outFileName, options.getDocumentSplitCriteria()));

     // If we convert a document that contains images into html, we will end up with one html file which links to several images.
     // Each image will be in the form of a file in the local file system.
     // There is also a callback that can customize the name and file system location of each image.
     options.setImageSavingCallback(new SavedImageRename(outFileName));

     doc.save(getArtifactsDir() + outFileName, options);
 }

 /// <summary>
 /// Sets custom filenames for output documents that the saving operation splits a document into.
 /// </summary>
 private static class SavedDocumentPartRename implements IDocumentPartSavingCallback {
     public SavedDocumentPartRename(String outFileName, int documentSplitCriteria) {
         mOutFileName = outFileName;
         mDocumentSplitCriteria = documentSplitCriteria;
     }

     public void documentPartSaving(DocumentPartSavingArgs args) throws Exception {
         // We can access the entire source document via the "Document" property.
         Assert.assertTrue(args.getDocument().getOriginalFileName().endsWith("Rendering.docx"));

         String partType = "";

         switch (mDocumentSplitCriteria) {
             case DocumentSplitCriteria.PAGE_BREAK:
                 partType = "Page";
                 break;
             case DocumentSplitCriteria.COLUMN_BREAK:
                 partType = "Column";
                 break;
             case DocumentSplitCriteria.SECTION_BREAK:
                 partType = "Section";
                 break;
             case DocumentSplitCriteria.HEADING_PARAGRAPH:
                 partType = "Paragraph from heading";
                 break;
         }

         String partFileName = MessageFormat.format("{0} part {1}, of type {2}.{3}", mOutFileName, ++mCount, partType, FilenameUtils.getExtension(args.getDocumentPartFileName()));

         // Below are two ways of specifying where Aspose.Words will save each part of the document.
         // 1 -  Set a filename for the output part file:
         args.setDocumentPartFileName(partFileName);

         // 2 -  Create a custom stream for the output part file:
         try (FileOutputStream outputStream = new FileOutputStream(getArtifactsDir() + partFileName)) {
             args.setDocumentPartStream(outputStream);
         }

         Assert.assertNotNull(args.getDocumentPartStream());
         Assert.assertFalse(args.getKeepDocumentPartStreamOpen());
     }

     private int mCount;
     private final String mOutFileName;
     private final int mDocumentSplitCriteria;
 }

 /// <summary>
 /// Sets custom filenames for image files that an HTML conversion creates.
 /// </summary>
 public static class SavedImageRename implements IImageSavingCallback {
     public SavedImageRename(String outFileName) {
         mOutFileName = outFileName;
     }

     public void imageSaving(ImageSavingArgs args) throws Exception {
         String imageFileName = MessageFormat.format("{0} shape {1}, of type {2}.{3}", mOutFileName, ++mCount, args.getCurrentShape().getShapeType(), FilenameUtils.getExtension(args.getImageFileName()));

         // Below are two ways of specifying where Aspose.Words will save each part of the document.
         // 1 -  Set a filename for the output image file:
         args.setImageFileName(imageFileName);

         // 2 -  Create a custom stream for the output image file:
         args.setImageStream(new FileOutputStream(getArtifactsDir() + imageFileName));

         Assert.assertNotNull(args.getImageStream());
         Assert.assertTrue(args.isImageAvailable());
         Assert.assertFalse(args.getKeepImageStreamOpen());
     }

     private int mCount;
     private final String mOutFileName;
 }
 
 

Throws:

java.lang.Exception