IResourceSavingCallback

public interface IResourceSavingCallback

Implement this interface if you want to control how Aspose.Words saves external resources (images, fonts and css) when saving a document to fixed page HTML or SVG.

Examples:

Shows how to use a callback to track external resources created while converting a document to HTML.

 public void resourceSavingCallback() throws Exception {
     Document doc = new Document(getMyDir() + "Bullet points with alternative font.docx");

     FontSavingCallback callback = new FontSavingCallback();

     HtmlFixedSaveOptions saveOptions = new HtmlFixedSaveOptions();
     {
         saveOptions.setResourceSavingCallback(callback);
     }

     doc.save(getArtifactsDir() + "HtmlFixedSaveOptions.UsingMachineFonts.html", saveOptions);

     System.out.println(callback.getText());
 }

 private static class FontSavingCallback implements IResourceSavingCallback {
     /// 
     /// Called when Aspose.Words saves an external resource to fixed page HTML or SVG.
     /// 
     public void resourceSaving(ResourceSavingArgs args) {
         mText.append(MessageFormat.format("Original document URI:\t{0}", args.getDocument().getOriginalFileName()));
         mText.append(MessageFormat.format("Resource being saved:\t{0}", args.getResourceFileName()));
         mText.append(MessageFormat.format("Full uri after saving:\t{0}\n", args.getResourceFileUri()));
     }

     public String getText() {
         return mText.toString();
     }

     private final StringBuilder mText = new StringBuilder();
 }
 

Shows how to use a callback to print the URIs of external resources created while converting a document to HTML.

 public void htmlFixedResourceFolder() throws Exception {
     Document doc = new Document(getMyDir() + "Rendering.docx");

     ResourceUriPrinter callback = new ResourceUriPrinter();

     HtmlFixedSaveOptions options = new HtmlFixedSaveOptions();
     {
         options.setSaveFormat(SaveFormat.HTML_FIXED);
         options.setExportEmbeddedImages(false);
         options.setResourcesFolder(getArtifactsDir() + "HtmlFixedResourceFolder");
         options.setResourcesFolderAlias(getArtifactsDir() + "HtmlFixedResourceFolderAlias");
         options.setShowPageBorder(false);
         options.setResourceSavingCallback(callback);
     }

     // A folder specified by ResourcesFolderAlias will contain the resources instead of ResourcesFolder.
     // We must ensure the folder exists before the streams can put their resources into it.
     new File(options.getResourcesFolderAlias()).mkdir();

     doc.save(getArtifactsDir() + "HtmlFixedSaveOptions.HtmlFixedResourceFolder.html", options);

     System.out.println(callback.getText());

     String[] resourceFiles = new File(getArtifactsDir() + "HtmlFixedResourceFolderAlias").list();

     Assert.assertFalse(new File(getArtifactsDir() + "HtmlFixedResourceFolder").exists());
     Assert.assertEquals(6, IterableUtils.countMatches(Arrays.asList(resourceFiles),
             f -> f.endsWith(".jpeg") || f.endsWith(".png") || f.endsWith(".css")));
 }

 /// 
 /// Counts and prints URIs of resources contained by as they are converted to fixed HTML.
 /// 
 private static class ResourceUriPrinter implements IResourceSavingCallback {
     public void resourceSaving(ResourceSavingArgs args) throws Exception {
         // If we set a folder alias in the SaveOptions object, we will be able to print it from here.
         mText.append(MessageFormat.format("Resource #{0} \"{1}\"", ++mSavedResourceCount, args.getResourceFileName()));

         String extension = FilenameUtils.getExtension(args.getResourceFileName());
         switch (extension) {
             case "ttf":
             case "woff": {
                 // By default, 'ResourceFileUri' uses system folder for fonts.
                 // To avoid problems in other platforms you must explicitly specify the path for the fonts.
                 args.setResourceFileUri(getArtifactsDir() + File.separatorChar + args.getResourceFileName());
                 break;
             }
         }

         mText.append("\t" + args.getResourceFileUri());

         // If we have specified a folder in the "ResourcesFolderAlias" property,
         // we will also need to redirect each stream to put its resource in that folder.
         args.setResourceStream(new FileOutputStream(args.getResourceFileUri()));
         args.setKeepResourceStreamOpen(false);
     }

     public String getText() {
         return mText.toString();
     }

     private int mSavedResourceCount;
     private final  StringBuilder mText = new StringBuilder();
 }
 

Methods

Method	Description
resourceSaving(ResourceSavingArgs args)	Called when Aspose.Words saves an external resource to fixed page HTML or SVG formats.

resourceSaving(ResourceSavingArgs args)

public abstract void resourceSaving(ResourceSavingArgs args)

Called when Aspose.Words saves an external resource to fixed page HTML or SVG formats.

Examples:

Shows how to use a callback to track external resources created while converting a document to HTML.

 public void resourceSavingCallback() throws Exception {
     Document doc = new Document(getMyDir() + "Bullet points with alternative font.docx");

     FontSavingCallback callback = new FontSavingCallback();

     HtmlFixedSaveOptions saveOptions = new HtmlFixedSaveOptions();
     {
         saveOptions.setResourceSavingCallback(callback);
     }

     doc.save(getArtifactsDir() + "HtmlFixedSaveOptions.UsingMachineFonts.html", saveOptions);

     System.out.println(callback.getText());
 }

 private static class FontSavingCallback implements IResourceSavingCallback {
     /// 
     /// Called when Aspose.Words saves an external resource to fixed page HTML or SVG.
     /// 
     public void resourceSaving(ResourceSavingArgs args) {
         mText.append(MessageFormat.format("Original document URI:\t{0}", args.getDocument().getOriginalFileName()));
         mText.append(MessageFormat.format("Resource being saved:\t{0}", args.getResourceFileName()));
         mText.append(MessageFormat.format("Full uri after saving:\t{0}\n", args.getResourceFileUri()));
     }

     public String getText() {
         return mText.toString();
     }

     private final StringBuilder mText = new StringBuilder();
 }
 

Shows how to use a callback to print the URIs of external resources created while converting a document to HTML.

 public void htmlFixedResourceFolder() throws Exception {
     Document doc = new Document(getMyDir() + "Rendering.docx");

     ResourceUriPrinter callback = new ResourceUriPrinter();

     HtmlFixedSaveOptions options = new HtmlFixedSaveOptions();
     {
         options.setSaveFormat(SaveFormat.HTML_FIXED);
         options.setExportEmbeddedImages(false);
         options.setResourcesFolder(getArtifactsDir() + "HtmlFixedResourceFolder");
         options.setResourcesFolderAlias(getArtifactsDir() + "HtmlFixedResourceFolderAlias");
         options.setShowPageBorder(false);
         options.setResourceSavingCallback(callback);
     }

     // A folder specified by ResourcesFolderAlias will contain the resources instead of ResourcesFolder.
     // We must ensure the folder exists before the streams can put their resources into it.
     new File(options.getResourcesFolderAlias()).mkdir();

     doc.save(getArtifactsDir() + "HtmlFixedSaveOptions.HtmlFixedResourceFolder.html", options);

     System.out.println(callback.getText());

     String[] resourceFiles = new File(getArtifactsDir() + "HtmlFixedResourceFolderAlias").list();

     Assert.assertFalse(new File(getArtifactsDir() + "HtmlFixedResourceFolder").exists());
     Assert.assertEquals(6, IterableUtils.countMatches(Arrays.asList(resourceFiles),
             f -> f.endsWith(".jpeg") || f.endsWith(".png") || f.endsWith(".css")));
 }

 /// 
 /// Counts and prints URIs of resources contained by as they are converted to fixed HTML.
 /// 
 private static class ResourceUriPrinter implements IResourceSavingCallback {
     public void resourceSaving(ResourceSavingArgs args) throws Exception {
         // If we set a folder alias in the SaveOptions object, we will be able to print it from here.
         mText.append(MessageFormat.format("Resource #{0} \"{1}\"", ++mSavedResourceCount, args.getResourceFileName()));

         String extension = FilenameUtils.getExtension(args.getResourceFileName());
         switch (extension) {
             case "ttf":
             case "woff": {
                 // By default, 'ResourceFileUri' uses system folder for fonts.
                 // To avoid problems in other platforms you must explicitly specify the path for the fonts.
                 args.setResourceFileUri(getArtifactsDir() + File.separatorChar + args.getResourceFileName());
                 break;
             }
         }

         mText.append("\t" + args.getResourceFileUri());

         // If we have specified a folder in the "ResourcesFolderAlias" property,
         // we will also need to redirect each stream to put its resource in that folder.
         args.setResourceStream(new FileOutputStream(args.getResourceFileUri()));
         args.setKeepResourceStreamOpen(false);
     }

     public String getText() {
         return mText.toString();
     }

     private int mSavedResourceCount;
     private final  StringBuilder mText = new StringBuilder();
 }
 

Parameters:

Parameter	Type	Description
args	ResourceSavingArgs