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How to replace figure with placeholder or certain image in word document using apache poi,?

Let's assume i have a word document, with this body.
Word document before replacing images
private void findImages(XWPFParagraph p) {
for (XWPFRun r : p.getRuns()) {
for (XWPFPicture pic : r.getEmbeddedPictures()) {
XWPFPicture picture = pic;
XWPFPictureData source = picture.getPictureData();
BufferedImage qrCodeImage = printVersionService.generateQRCodeImage("JASAW EMA WWS");
File imageFile = new File("image.jpg");
try {
ImageIO.write(qrCodeImage, "jpg", imageFile);
} catch (IOException e) {
e.printStackTrace();
}
try ( FileInputStream in = new FileInputStream(imageFile);
OutputStream out = source.getPackagePart().getOutputStream();
) {
byte[] buffer = new byte[2048];
int length;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
}
So this code replaces any image with QR code.
But I have one trouble.
Word Document after replacing
So my question is?
How can I replace only the image i chose or how can i replace inserted figure with text with image generated by my own function?

Detecting the picture and replacing the picture data will be the simplest. In following answer I have shown how to detect and replace pictures by name: Java Apache POI: insert an image "infront the text". If you do not know the name of the embedded picture, a picture also can be detected by alt text. To edit the alt text of a picture, open the context menu by right mouse click on the picture and choose Edit A̲lt Text from that context menu.
In How to read alt text of image in word document apache.poi I have shown already how to read alt text of image.
So code could look like:
import java.io.FileInputStream;
import java.io.OutputStream;
import java.io.FileOutputStream;
import org.apache.poi.xwpf.usermodel.*;
public class WordReplacePictureData {
static org.apache.xmlbeans.XmlObject getInlineOrAnchor(org.openxmlformats.schemas.drawingml.x2006.picture.CTPicture ctPictureToFind, org.apache.xmlbeans.XmlObject inlineOrAnchor) {
String declareNameSpaces = "declare namespace pic='http://schemas.openxmlformats.org/drawingml/2006/picture'; ";
org.apache.xmlbeans.XmlObject[] selectedObjects = inlineOrAnchor.selectPath(
declareNameSpaces
+ "$this//pic:pic");
for (org.apache.xmlbeans.XmlObject selectedObject : selectedObjects) {
if (selectedObject instanceof org.openxmlformats.schemas.drawingml.x2006.picture.CTPicture) {
org.openxmlformats.schemas.drawingml.x2006.picture.CTPicture ctPicture = (org.openxmlformats.schemas.drawingml.x2006.picture.CTPicture)selectedObject;
if (ctPictureToFind.equals(ctPicture)) {
// this is the inlineOrAnchor for that picture
return inlineOrAnchor;
}
}
}
return null;
}
static org.apache.xmlbeans.XmlObject getInlineOrAnchor(XWPFRun run, XWPFPicture picture) {
org.openxmlformats.schemas.drawingml.x2006.picture.CTPicture ctPictureToFind = picture.getCTPicture();
for (org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDrawing drawing : run.getCTR().getDrawingList()) {
for (org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTInline inline : drawing.getInlineList()) {
org.apache.xmlbeans.XmlObject inlineOrAnchor = getInlineOrAnchor(ctPictureToFind, inline);
// if inlineOrAnchor is not null, then this is the inline for that picture
if (inlineOrAnchor != null) return inlineOrAnchor;
}
for (org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor anchor : drawing.getAnchorList()) {
org.apache.xmlbeans.XmlObject inlineOrAnchor = getInlineOrAnchor(ctPictureToFind, anchor);
// if inlineOrAnchor is not null, then this is the anchor for that picture
if (inlineOrAnchor != null) return inlineOrAnchor;
}
}
return null;
}
static org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps getNonVisualDrawingProps(org.apache.xmlbeans.XmlObject inlineOrAnchor) {
if (inlineOrAnchor == null) return null;
if (inlineOrAnchor instanceof org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTInline) {
org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTInline inline = (org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTInline)inlineOrAnchor;
return inline.getDocPr();
} else if (inlineOrAnchor instanceof org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor) {
org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor anchor = (org.openxmlformats.schemas.drawingml.x2006.wordprocessingDrawing.CTAnchor)inlineOrAnchor;
return anchor.getDocPr();
}
return null;
}
static String getSummary(org.openxmlformats.schemas.drawingml.x2006.main.CTNonVisualDrawingProps nonVisualDrawingProps) {
if (nonVisualDrawingProps == null) return "";
String summary = "Id:=" + nonVisualDrawingProps.getId();
summary += " Name:=" + nonVisualDrawingProps.getName();
summary += " Title:=" + nonVisualDrawingProps.getTitle();
summary += " Descr:=" + nonVisualDrawingProps.getDescr();
return summary;
}
static XWPFPicture getPictureByAltText(XWPFRun run, String altText) {
if (altText == null) return null;
for (XWPFPicture picture : run.getEmbeddedPictures()) {
String altTextSummary = getSummary(getNonVisualDrawingProps(getInlineOrAnchor(run, picture)));
System.out.println(altTextSummary);
if (altTextSummary.contains(altText)) {
return picture;
}
}
return null;
}
static void replacePictureData(XWPFPictureData source, String pictureResultPath) {
try ( FileInputStream in = new FileInputStream(pictureResultPath);
OutputStream out = source.getPackagePart().getOutputStream();
) {
byte[] buffer = new byte[2048];
int length;
while ((length = in.read(buffer)) > 0) {
out.write(buffer, 0, length);
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
static void replacePicture(XWPFRun run, String altText, String pictureResultPath) {
XWPFPicture picture = getPictureByAltText(run, altText);
if (picture != null) {
XWPFPictureData source = picture.getPictureData();
replacePictureData(source, pictureResultPath);
}
}
public static void main(String[] args) throws Exception {
String templatePath = "./source.docx";
String resultPath = "./result.docx";
String altText = "Placeholder QR-Code";
String pictureResultPath = "./QR.jpg";
try ( XWPFDocument document = new XWPFDocument(new FileInputStream(templatePath));
FileOutputStream out = new FileOutputStream(resultPath);
) {
for (IBodyElement bodyElement : document.getBodyElements()) {
if (bodyElement instanceof XWPFParagraph) {
XWPFParagraph paragraph = (XWPFParagraph)bodyElement;
for (XWPFRun run : paragraph.getRuns()) {
replacePicture(run, altText, pictureResultPath);
}
}
}
document.write(out);
}
}
}
This replaces the picture or pictures having alt text "Placeholder QR-Code". All other pictures remain as they are.
Replacing shapes with pictures is very laborious as shapes are stored in alternate content elements (to choice shape and fallback) and so the shape needs to be changed as well as the fallback. If one would let the fallback untouched, then applications which rely on that fallback will further show the old shape. Furthermore detecting shapes by text box content is not really much simpler than detecting pictures by alt text content.

java.lang.arrayindexoutofboundsexception jsoup

I'm trying to pull all images from a website and
analyze each one using AWS image recognition API. It works for some websites, however some websites return an error saying `500 server error java.lang.arrayindexoutofboundsexception index:281 size 281.
Basically I'm scraping images using jsoup and then creating an object to store the name and image URL for each image. After that, I call the API and check each image in the ArrayList. For some reason it only works for some websites.
Can someone please explain what I'm doing wrong and how to prevent this error?
#WebServlet(name = "HelloAppEngine", urlPatterns = {
"/hello"
})
public class HelloAppEngine extends HttpServlet {
static ArrayList < ResponseData > testImages = new ArrayList < > ();
static AmazonRekognition rekognitionClient = AmazonRekognitionClientBuilder.defaultClient();
public static void getimages() throws MalformedURLException, IOException {
System.out.println("getImages called" + testImages);
int index = 0;
for (ResponseData data: testImages) {
System.err.println("open stream for:" + data.getUrl());
ByteBuffer imageBytes = null;
try (InputStream inputStream = new URL(data.getUrl()).openStream()) {
System.out.println(inputStream);
imageBytes = ByteBuffer.wrap(IOUtils.toByteArray(inputStream));
System.out.println(imageBytes);
} catch (IOException e1) {
System.err.println(e1.getMessage());
}
//
DetectLabelsRequest request = new DetectLabelsRequest().withImage(new Image().withBytes(imageBytes)); //.withMaxLabels(10).withMinConfidence(77F);
try {
DetectLabelsResult result = rekognitionClient.detectLabels(request);
List < Label > labels = result.getLabels();
//System.out.println(labels);
//System.out.println("Detected labels for " + photo+""+labels);
for (Label label: labels) {
//loop through all labels of object
//create new responsedata object for each image
//where im getting error
if (testImages.get(index) != null) {
ResponseData d = testImages.get(index);
d.setName(label.getName());
testImages.set(index, d);
//increment for making new image url and name
index++;
System.out.println(label.getName() + ": " + label.getConfidence().toString());
}
}
//
} catch (AmazonRekognitionException e) {
System.err.println(e.getMessage());
}
}
}
private static final long serialVersionUID = 1 L;
protected static final Gson GSON = new GsonBuilder().create();
// This is just a test array
ArrayList < String > list = new ArrayList < String > ();
#Override
protected final void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setContentType("text/json");
String servlet = req.getServletPath();
System.setProperty("http.proxyHost", "192.168.5.1");
System.setProperty("http.proxyPort", "1080");
log("servlet:" + servlet);
if (servlet.equalsIgnoreCase("/main")) {
log("if body start");
String urlString = java.net.URLDecoder.decode(req.getParameter("url"), "UTF-8");
// Connect to website. This can be replaced with your file loading
// implementation
Document doc = Jsoup.connect(urlString).get();
// Get all img tags
Elements img = doc.getElementsByTag("img");
Elements media = doc.select("[src]");
int counter = 0;
// Loop through img tags
for (Element src: media) {
if (src.tagName().equals("img")) {
counter++;
//create reposnsedata object for each image url
ResponseData data = new ResponseData();
//set object url to image url
data.setUrl(src.attr("abs:src"));
//set data name from aws
data.setName(" ");
testImages.add(data);
// getimages();
}
if (src.tagName().equals("link[href~=.*\\.(ico|png)]")) {
System.out.println("image is logo");
}
if (src.tagName().equals("meta[itemprop=image]")) {
System.out.println("image is logosss");
}
}
}
//log("list" + testImages);
getimages();
//
// getimages();
System.err.println(GSON.toJson(testImages));
resp.getWriter().println(GSON.toJson(testImages));
}
#Override
protected final void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
doPost(req, resp);
}
}

You're trying to get 282nd image (index=281) from testImages but there's only 281 (index=280). You're getting each image for each label and it's possible there's more labels than images.
Try displaying the amount of both of them:
System.out.println("testImages.size() is: " + testImages.size());
System.out.println("labels.size() is: " + labels.size());
To avoid getting more images than labels try replacing this condition:
if (testImages.get(index) != null) {
with
if (index < testImages.size() && testImages.get(index) != null) {

How can i chage name of image using java while uploading and save in folder? [duplicate]

This question already has answers here:
Recommended way to save uploaded files in a servlet application
(2 answers)
Closed 6 years ago.
<body>
<form method="post" action="DemoServlet" enctype="multipart/form-data" name="form1">
<input type="file" name="file" />
Image_Name:<input type="text" name="file"/>
<input type="submit" value="Go"/>
</form>
</body>
this is my index.jsp page.
This Servlet is DemoServlet when user click on submit button it will go here.while in jsp page suppose Image_Name given by user is IPL and actual name of image is funny.jpg then while saving the image it should store as IPL.png,here i'm able to upload image correctly with funny.jpg,but i need to save image as given name in text field of index.jsp page
public class DemoServlet extends HttpServlet {
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Date date = new Date();
response.setContentType("text/html");
PrintWriter out = response.getWriter();
boolean isMultiPart = ServletFileUpload.isMultipartContent(request);
if (isMultiPart) {
ServletFileUpload upload = new ServletFileUpload();
try {
FileItemIterator itr = upload.getItemIterator(request);
while (itr.hasNext()) {
FileItemStream item = itr.next();
if (item.isFormField()) {
String fieldname = item.getFieldName();
InputStream is = item.openStream();
byte[] b = new byte[is.available()];
is.read(b);
String value = new String(b);
response.getWriter().println(fieldname + ":" + value + "</br>");
} else {
String TempPath = getServletContext().getRealPath("");
String path = TempPath.substring(0, TempPath.indexOf("build"));
if (FileUpload.processFile(path, item)) {
out.println("File Uploaded on:" + date + "<br>");
response.getWriter().println("Image Upload Successfully");
} else {
response.getWriter().println("Failed.....Try again");
}
}
}
} catch (FileUploadException fue) {
fue.printStackTrace();
}
}
}
}
and this is java class
public class FileUpload {
public static boolean processFile(String path, FileItemStream item) {
try {
File f = new File(path + File.separator + "web/images");
if (!f.exists()) {
f.mkdir();
}
File savedFile = new File(f.getAbsolutePath() + File.separator + item.getName());
FileOutputStream fos = new FileOutputStream(savedFile);
InputStream is = item.openStream();
int x = 0;
byte[] b = new byte[1024];
while ((x = is.read(b)) != -1) {
fos.write(b, 0, x);
}
fos.flush();
fos.close();
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}
Could anybody guide me how to change this dynamically.Thanks in advance.

I don't know how Servlet's and the like work however i can give you a rundown of what you need to do.
In DemoServlet you need to take in the input of the Image_Name field and make that one of your parameters of FileUpload
public static boolean processFile(String path, FileItemStream item, String fileName){
//Method Code
}
Because currently your processFile method is taking the name of the file from your FileItemStream. You need to change it from that to your actual fileName
File savedFile = new File(f.getAbsolutePath() + File.separator + item.getName());
to
File savedFile = new File(f.getAbsolutePath() + File.separator + fileName + ".png");

You can change the name of image in your java class code.
public class FileUpload {
public static boolean processFile(String path, FileItemStream item , String name) {
try {
File f = new File(path + File.separator + "web/images");
if (!f.exists()) {
f.mkdir();
}
File savedFile = new File(f.getAbsolutePath() + File.separator + item.getName()); // instead of item.getName() you can give your name.
FileOutputStream fos = new FileOutputStream(savedFile);
InputStream is = item.openStream();
int x = 0;
byte[] b = new byte[1024];
while ((x = is.read(b)) != -1) {
fos.write(b, 0, x);
}
fos.flush();
fos.close();
return true;
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
you will have to pass the file name in the method.
instead of item.getName() you can give your name.

List fileItems = upload.parseRequest(request);
Iterator i = fileItems.iterator();
System.out.println("In >>>>>>>>>>>>>>> :: "+fileItems);
while(i.hasNext()){
FileItem fi = (FileItem) i.next();
System.out.println("Val <<<<>>>>>>:: "+fi);
if(fi.isFormField()){
String fieldName = fi.getFieldName();
String val = fi.getString();
System.out.println(fieldName+" :: Val :: "+val);
}else{
String fileName = fi.getName();
String root = getServletContext().getRealPath("/");
File path = new File(root+"/uploads");
if (!path.exists()) {
boolean status = path.mkdir();
}
File uploadFile = new File(path+"/"+fileName);
fi.write(uploadFile);
}
In the code above you can change the file name at any time and it will automatically save with this name.

//How does not work in this way?Please tell me another way.
import java.io.File;
public class RenameFileExample {
public static void main(String[] args)
{
File oldfile =new File("oldfile.txt");
File newfile =new File("newfile.txt");
File file = new File("oldfilename.png");
file.renameTo(new File("newfilename.png"));
System.out.println("Rename To:"+file.getName());
if(oldfile.renameTo(newfile)){
System.out.println("Rename succesful");
}else{
System.out.println("Rename failed");
}
}
}

How to create a new file with an existing emf resource

I'm wondering how I can create a new file with an existing emf resource. At the moment I've the following code in my org.eclipse.ui.menus DefaultHandler, which get me the existing emf resource and create a new (empty) file:
if (element instanceof IResource) {
IResource pldFile = (IResource) element;
String path = pldFile.getLocation().toString();
URI uri = URI.createFileURI(path);
// Obtain a new resource set
ResourceSet resSet = new ResourceSetImpl();
// Get the existing resource
Resource emfResource = resSet.getResource(uri, true);
IProject project = pldFile.getProject();
String fileName = pldFile.getName().replace(pldFile.getFileExtension(), "plc");
IFile plcFile = project.getFile(new Path(fileName));
byte[] bytes = "".getBytes();
try {
InputStream source = new ByteArrayInputStream(bytes);
if (plcFile.exists()) {
int i = 1;
String tmp = "";
do {
tmp = fileName;
int index = tmp.indexOf(".plc");
tmp = tmp.substring(0, index) + i + tmp.substring(index, tmp.length());
plcFile = project.getFile(new Path(tmp));
i++;
} while (plcFile.exists());
plcFile.create(source, IResource.NONE, null);
} else {
plcFile.create(source, IResource.NONE, null);
}
PlcEditorInput input = new PlcEditorInput(emfResource);
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
IWorkbenchPage page = window.getActivePage();
IDE.openEditor(page, plcFile);
} catch (CoreException e) {
e.printStackTrace();
}
How can I assign now the existing emf resource to my newly created file?
Cheers,
Phil

I'm not sure but try to import the resource as new file. I mean define a new file or project and then import the resource.
To be honestly I try a similary way but it didn't work with my resource(--> it's a 10-years-old-code).

Export/Download presentations and SpreadSheet impersonate other domain users with using administrative access

I need to export/download all files of the other domain users. I used the client login with administer account to see the all files of domain users. however,only document can be export/download,others are fail.
so what is the download url format of the others(For File,pdf,presentation and spreadsheet)??
my document download url is
https://docs.google.com/feeds/download/documents/Export?xoauth_requestor=admin#domain.com&docId=<id>&exportFormat=doc
my program is as following:
public class AuthExample {
private static DocsService docService = new DocsService("Auth Example");
public static void main(String[] args)
throws Exception
{
String adminUser = admin;
String adminPassword = adminpasswd;
String impersonatedUser = "user#domain.com";
docService.setUserCredentials(adminUser, adminPassword);
URL url = new URL( "https://docs.google.com/feeds/" + impersonatedUser + "/private/full");
DocumentListFeed feed = docService.getFeed(url, DocumentListFeed.class);
for (DocumentListEntry entry : feed.getEntries()) {
String title = entry.getTitle().getPlainText();
System.out.println( title );
String type = entry.getType();
if ( type.equals("document") )
{
String encodedAdminUser = URLEncoder.encode(adminUser);
String resourceId = entry.getResourceId();
String resourceIdNoPrefix = resourceId.substring( resourceId.indexOf(':')+1 );
String downloadUrl =
"https://docs.google.com/feeds/download/documents/Export" +
"?xoauth_requestor=" + encodedAdminUser +
"&docId=" + resourceIdNoPrefix +
"&exportFormat=doc";
downloadFile( downloadUrl, title + ".doc" );
}
}
}
// Method pasted directly from Google documentation
public static void downloadFile(String exportUrl, String filepath)
throws IOException, MalformedURLException, ServiceException
{
System.out.println("Exporting document from: " + exportUrl);
MediaContent mc = new MediaContent();
mc.setUri(exportUrl);
MediaSource ms = docService.getMedia(mc);
InputStream inStream = null;
FileOutputStream outStream = null;
try {
inStream = ms.getInputStream();
outStream = new FileOutputStream(filepath);
int c;
while ((c = inStream.read()) != -1) {
outStream.write(c);
}
} finally {
if (inStream != null) {
inStream.close();
}
if (outStream != null) {
outStream.flush();
outStream.close();
}
}
}
}

Don't build the download link manually, instead use the entry's content link as explained in the docs:
https://developers.google.com/google-apps/documents-list/#downloading_documents_and_files