Example usage for org.apache.wicket.util.resource IResourceStream length

Introduction

In this page you can find the example usage for org.apache.wicket.util.resource IResourceStream length.

Prototype

Bytes length();

Source Link

Document

Gets the size of this resource

Usage

From source file:org.hippoecm.frontend.plugins.console.editor.BinaryEditor.java

License:Apache License

public BinaryEditor(String id, JcrPropertyModel model, final IPluginContext pluginContext) {
    super(id, model);
    final IResourceStream stream = new BinaryResourceStream(model);

    // download//from w w  w . j  av a2 s . com
    final ResourceStreamResource resource = new ResourceStreamResource(stream);
    resource.setCacheDuration(Duration.NONE);
    try {
        final Node node = model.getProperty().getParent().getParent();
        final StringBuilder fileName = new StringBuilder(node.getName());
        if (isExtractedTextProperty(model.getProperty())) {
            fileName.append(".txt");
        }
        resource.setFileName(fileName.toString());
    } catch (RepositoryException e) {
        log.error("Unexpected exception while determining download filename", e);
    }
    final Link downloadLink = new ResourceLink("binary-download-lnk", resource);
    downloadLink.add(new Label("binary-download-text", "download (" + getSizeString(stream.length()) + ")"));
    add(downloadLink);

    // upload
    IDialogFactory factory = new IDialogFactory() {
        private static final long serialVersionUID = 1L;

        public IDialogService.Dialog createDialog() {
            return new BinaryUploadDialog(model);
        }
    };
    final IDialogService service = pluginContext.getService(IDialogService.class.getName(),
            IDialogService.class);
    final DialogLink uploadLink = new DialogLink("binary-upload-link", new Model<>("Upload binary"), factory,
            service);
    add(uploadLink);

    // Jackrabbit Binary Content Identifier if this Binary is in BinaryStore.
    final Label contentIdentityValueLabel = new Label("content-identity-value",
            new PropertyModel<String>(this, "contentIdentity"));
    contentIdentityValueLabel.setOutputMarkupPlaceholderTag(true);
    contentIdentityValueLabel.setVisible(false);
    add(contentIdentityValueLabel);
    final AjaxLink contentIdentityShowLink = new AjaxLink("content-identity-show-link") {
        @Override
        public void onClick(AjaxRequestTarget target) {
            setContentIdentity(retrieveJackrabbitContentIdentity());
            target.add(contentIdentityValueLabel.setVisible(true));
            target.add(this.setVisible(false));
        }
    };
    add(contentIdentityShowLink);
}

---

From source file:org.wicketstuff.html5.image.CanvasImage.java

License:Apache License

/**
 * Renders the complete image tag with the base64 encoded content.
 */// ww w  . j a v  a 2  s . com
@Override
protected void onComponentTag(ComponentTag tag) {
    checkComponentTag(tag, "img");
    super.onComponentTag(tag);

    IResourceStream packageResourceStream = packageResourceReference.getResource().getResourceStream();
    if (packageResourceStream != null) {
        try {
            StringBuilder builder = new StringBuilder();
            builder.append("data:");
            builder.append(packageResourceStream.getContentType());
            builder.append(";base64,");
            byte[] bytes = new byte[(int) packageResourceStream.length().bytes()];
            DataInputStream dataInputStream = new DataInputStream(packageResourceStream.getInputStream());
            dataInputStream.readFully(bytes);
            builder.append(Base64.encodeBase64String(bytes));
            tag.put("src", builder.toString());
        } catch (Exception e) {
            throw new WicketRuntimeException("An error occured while reading the package resource stream", e);
        }
    } else {
        // If the package resource stream is not set create an empty image
        tag.put("src", "#");
        tag.put("style", "display:none;");
    }
}

---