I want to print a doc file using java. How can i do it without any 3rd party API.
As far as i know, you have to render the doc file as image and then pass it to the printer. Is there any way to render the doc file in image and then print it?
You need not convert the document to an image. If you are using Java 6+, you can try:
File file = new File("C:\\document.doc");
Desktop.getDesktop().print(file);
The method print in the class java.awt.Desktop:
Prints a file with the native desktop printing facility, using the associated application's print command.
Related
I am trying to "automate" the building of a PDF using Apache FOP and Java. I want to minimize the hard coding since I don't know in advance all the file combinations I am going to need to support. In addition I want to try and not save files on the hard drive. Files on the HD introduces security, performance, threading and cleanup considerations I would rather not handle.
The test case I am using right now has 1 FO and 2 PNG files. One of the PNG files is over 1MB.
Ideally I would create 3 sources:
InputStream fo = new InputStream(new File("C:\\Temp\\FOP\\Test\\blah.fo"));
InputStream png1 = new InputStream(new File("C:\\Temp\\FOP\\Test\\image-1.png"));
InputStream png2 = new InputStream(new File("C:\\Temp\\FOP\\Test\\image-2.png"));
Source foSrc = new StreamSource(fo);
Source png1Src = new StreamSource(png1);
Source png2Src = new StreamSource(png2);
and then combine them all together to generate the PDF. I can't find a way using the API to do that.
The FO files refers to the images via:
<fo:external-graphic src="file:image-1.png"/>
<fo:external-graphic src="file:image-2.png"/>
When I use the command line FOP tools, it builds the PDF as I would expect. As long as the two images are in the same directory as the FO file, then all is good. Using the command line, there is no need to point out the existence or location of the images.
When using Java, I have tried a number of configurations, but none of them fit my need:
I saved the FO file and the 2 images into the same directory and referred to them using the following FopFactory constructor:
private static final FopFactory fopFactory = FopFactory.newInstance(new File("C:\\Temp\\FOP\\test").toURI());
This code base only finds the smaller of the two images. It seems like the larger one is being ignored since it is bigger than some limit.
I have tried the above constructor using various relative and absolute paths.
I have tried constructing FopFactory using the default "fop.xconf" file and adding the "C:\Temp\FOP\Test" directory to the classpath.
I have "hardcoded" the files and their locations in the FO file.
I have tried using intermediate files structure (IFDocumentHandler, IFSerializer and IFConcatenator) for the images and get errors that way. Seems the intermediate files are not intended for images.
I have been able to embed the file into the FO file using base64 encoding and the syntax:
<fo:external-graphic src="url('data:image/png;base64,iVBORw...ggg==')"/>
The last one seems like the best solution other than taking 3 sources and using all 3 to generate the PDF. Any suggestions on how to use the API to combine the 3 sources?
Thanks.
How would one go about converting a SVG file to a PDF programatically? (I need to alter the SVG in certain respects before generating the PDF so simply pre-converting it using a tool won't be sufficient.)
Ideally using Java but Perl or PHP would be fine too.
Obviously I am basically considering Apache FOP and Batik with Java. However no matter how long I search I cannot find a simple introduction on how to do it. Things like SVGConverter have descriptions like "Defines the interface for classes that are able to convert part or all of a GraphicContext", but I don't really know what that means.
I have this feeling there must be an API to do this quite simply, provided by FOP or Batik, but I'm just not able to find it at the moment (or perhaps it really doesn't exist.)
In terms of the supported SVG features I need, the file has some paths which are filled with some linear gradients.
Ideally if I could pass the SVG in as a DOM Document that would be ideal; then I would load my template SVG file, change it as specified by the user, and then generate the PDF.
Thanks to Adrian for showing how the Batik rasterizer API is supposed to be used. However, I needed a more lightweight solution--- I can't write to temporary files, and I want fewer dependencies. So, starting from the methods he pointed to, I found a way to access the lower-level code to do the conversion and nothing else.
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import org.apache.batik.transcoder.Transcoder;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.fop.svg.PDFTranscoder;
public class Test {
public static void main(String[] argv) throws TranscoderException, FileNotFoundException {
Transcoder transcoder = new PDFTranscoder();
TranscoderInput transcoderInput = new TranscoderInput(new FileInputStream(new File("/tmp/test.svg")));
TranscoderOutput transcoderOutput = new TranscoderOutput(new FileOutputStream(new File("/tmp/test.pdf")));
transcoder.transcode(transcoderInput, transcoderOutput);
}
}
The compile-and-run commands are
javac -cp batik-rasterizer.jar -d build Test.java
java -cp build:batik-rasterizer.jar Test
The important point is that TranscoderInput and TranscoderOutput can work with any InputStream and OutputStream, not just file streams. Note that one of the constructors takes a org.w3c.dom.Document, which means that you don't even need to serialize an SVG DOM into an SVG string, saving an additional step.
This version also doesn't write anything to stdout/stderr, unlike the high-level API.
For JPEG, PNG, or TIFF output, replace org.apache.fop.svg.PDFTranscoder with org.apache.batik.transcoder.image.JPEGTranscoder, PNGTranscoder, or TIFFTranscoder (note that these raster formats are in a different package).
(I'm not quite sure how Java finds the org.apache.batk.transcoder.* and org.apache.fop.svg.PDFTranscoder classes, since I don't see them in the batik-rasterizer.jar.)
Edit:
Although the simple commandline-compilation works with the batik-rasterizer.jar only, it's doing some sort of classloader magic to find all the necessary classes. In a more realistic case (building a project with Ant), you have to find the classes by hand. They can be found in batik-1.7.zip from the Batik project and fop-1.1.zip from the FOP project. From Batik, you need to compile with batik-transcoder.jar and run with
batik-transcoder.jar
batik-anim.jar
batik-awt-util.jar
batik-bridge.jar
batik-css.jar
batik-dom.jar
batik-ext.jar
batik-gvt.jar
batik-parser.jar
batik-script.jar
batik-svg-dom.jar
batik-util.jar
batik-xml.jar
xml-apis-ext.jar
From FOP, you need to compile with fop.jar and run with
fop.jar
avalon-framework-4.2.0.jar
xmlgraphics-commons-1.5.jar
I finally managed to find the appropriate lines of code to solve this using the Batik.
You need to have the SVG file and the resulting PDF as files on the disk, i.e. I couldn't find a way to do it in-memory (I am writing a HTTP Servlet so I have no intrinsic need to write anything as a file, ideally I would stream the result to the HTTP client). I used File.createTemporaryFile to create a file to dump out my SVG to a file, and for the resulting PDF to be written to.
So the lines I used are the following:
import org.apache.batik.apps.rasterizer.DestinationType;
import org.apache.batik.apps.rasterizer.SVGConverter;
import ...
// SVG available as a DOM object (created programatically by my program)
Document svgXmlDoc = ...
// Save this SVG into a file (required by SVG -> PDF transformation process)
File svgFile = File.createTempFile("graphic-", ".svg");
Transformer transformer = TransformerFactory.newInstance().newTransformer();
DOMSource source2 = new DOMSource(svgXmlDoc);
FileOutputStream fOut = new FileOutputStream(svgFile);
try { transformer.transform(source2, new StreamResult(fOut)); }
finally { fOut.close(); }
// Convert the SVG into PDF
File outputFile = File.createTempFile("result-", ".pdf");
SVGConverter converter = new SVGConverter();
converter.setDestinationType(DestinationType.PDF);
converter.setSources(new String[] { svgFile.toString() });
converter.setDst(outputFile);
converter.execute();
And I have the following JARs (search using Google to find the projects and download them):
avalon-framework-4.2.0.jar
batik-all-1.7.jar
commons-io-1.3.1.jar
commons-logging-1.0.4.jar
fop-0.95.jar
log4j-1.2.15.jar
xml-apis-ext.jar
xmlgraphics-commons-1.3.1.jar
you will need a libray for rendering svg's and pdf's.
I recommend SVG salamander for the former, and iText for the latter. With svg salamander you can to read the svg and create an image object, and with itext you can write that image to a pdf.
I use Altsoft Xml2PDF. If I understood correctly all your needs and requirement, you'd better try their Server version of Xml2PDF.
All you need is phantomjs. You don't need the unwieldy Batik for this at all; just get to a point where you can run phantomjs, calling rasterize.js, using the url of the pdf as a source, and a location as the output. Depending on what you want to do with the .pdf, you don't even need Java.
http://phantomjs.org/screen-capture.html
Look at the part starting with "Beside PNG format, PhantomJS supports JPEG, GIF, and PDF."
I am a beginner in java and I am building an android app.
I want to have an xml file that has text in it.
Whenever the server sends updates, I want to change some lines in that file (what I mean by update is changing some lines in that file by erasing the some part of the text written already and replace by the update)
I know nothing about creating,writing or reading from files.
When I searched I found out that Internal storage suits me best.
But I do not know if I have to create an xml file manually in any directory or just use the code bellow to create this file automatically?
// If this is the first time run,execute one time code
// create XML Internal store
String FILENAME = "My_XML_file";
try{
FileOutputStream fos = openFileOutput(FILENAME, Context.MODE_APPEND);
} catch (final IOException e) {
e.printStackTrace();
}
Thank you in advance!
- First give the External Storage permission in the Manifest.xml file.
- You can use JAXP & JAXB, and even CASTOR to handle XML in a better way, but still DOM and SAX are inbuilt into Android.
You can use something like this
String s = "/sdcard/Myfolder/mytext.txt";
File f = new File(s);
The code you have will create a file in internal storage but you need a bit more to create and maintain an XML file easily.
I suggest you use the Build in Android DOM Parser (Android developers site docs on XML Parse options)
I found this example which explains how to use the dom parser to build a specific (new) XML file from code. In your context where the output stream in created:
StreamResult result = new StreamResult(new File("C:\\file.xml"));
you might want to use the other constructor based on the output stream you created above
StreamResult result = new StreamResult(fos);
In a similar fashion this DOM library allows you to read from an input stream (which you might get from android openFileInput) using DocumentBuilder.parse()
I created an applet that requires a CSV file for information. The way the applet works, is that there is a text field in which you type in your zip code, then you press a button. That causes the program to parse through the CSV file which contains a latitude and longitude, then display the latitude and longitude on a JLabel in the applet.
When I created it, I debugged it and tested it, so I know it works on my desktop (when running in eclipse). The problem is when I put in on the web, it displays but can't do anything, meaning it is just an applet with a text field and a button, but when you press the button, nothing happens. I know that it is not my ActionListener, because it works on the desktop, but I must be doing something wrong with the HTML of it. The name of the CSV file is zips.csv. The name of the main class is main.class (or main.java) and the action listener is myActionListener.class (or myActionListener.java).
Here is the HTML that I am using for it right now:
<applet archive="sites/default/files/myApplet.jar" code="main.class" width="500" height="200">
</applet>
Revision:
Romething else that someone recommended to me was to create a php script that will parse the csv file, and than have that return a value to the java applet. My knowledge of PHP ls limited, so I was wonder if someone could tell me how I could go about doing this, or telling me where I can learn how to do this.
CsvReader products = new CsvReader("zips.csv");
My crystal ball tells me that CsvReader presumes the String to represent a File object. It might also have another constructor that accepts an URL.
A sand-boxed applet cannot access File objects, and a trusted applet can only access File objects on the computer of the end user. That is useless to this applet. If the API has a constructor that accepts an URL, that is the one to use here. Something like:
URL url = this.getClass().getResource("zips.csv");
//CsvReader products = new CsvReader(url);
InputStream is = url.openStream();
CsvReader products = new CsvReader(is);
A constructor that accepts an InputStream is even more versatile, and only a line longer.
If the CsvReader accepts neither of URL or InputStream, I suggest you find another API. One that was not written by amateurs.
How would one go about converting a SVG file to a PDF programatically? (I need to alter the SVG in certain respects before generating the PDF so simply pre-converting it using a tool won't be sufficient.)
Ideally using Java but Perl or PHP would be fine too.
Obviously I am basically considering Apache FOP and Batik with Java. However no matter how long I search I cannot find a simple introduction on how to do it. Things like SVGConverter have descriptions like "Defines the interface for classes that are able to convert part or all of a GraphicContext", but I don't really know what that means.
I have this feeling there must be an API to do this quite simply, provided by FOP or Batik, but I'm just not able to find it at the moment (or perhaps it really doesn't exist.)
In terms of the supported SVG features I need, the file has some paths which are filled with some linear gradients.
Ideally if I could pass the SVG in as a DOM Document that would be ideal; then I would load my template SVG file, change it as specified by the user, and then generate the PDF.
Thanks to Adrian for showing how the Batik rasterizer API is supposed to be used. However, I needed a more lightweight solution--- I can't write to temporary files, and I want fewer dependencies. So, starting from the methods he pointed to, I found a way to access the lower-level code to do the conversion and nothing else.
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import org.apache.batik.transcoder.Transcoder;
import org.apache.batik.transcoder.TranscoderException;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.fop.svg.PDFTranscoder;
public class Test {
public static void main(String[] argv) throws TranscoderException, FileNotFoundException {
Transcoder transcoder = new PDFTranscoder();
TranscoderInput transcoderInput = new TranscoderInput(new FileInputStream(new File("/tmp/test.svg")));
TranscoderOutput transcoderOutput = new TranscoderOutput(new FileOutputStream(new File("/tmp/test.pdf")));
transcoder.transcode(transcoderInput, transcoderOutput);
}
}
The compile-and-run commands are
javac -cp batik-rasterizer.jar -d build Test.java
java -cp build:batik-rasterizer.jar Test
The important point is that TranscoderInput and TranscoderOutput can work with any InputStream and OutputStream, not just file streams. Note that one of the constructors takes a org.w3c.dom.Document, which means that you don't even need to serialize an SVG DOM into an SVG string, saving an additional step.
This version also doesn't write anything to stdout/stderr, unlike the high-level API.
For JPEG, PNG, or TIFF output, replace org.apache.fop.svg.PDFTranscoder with org.apache.batik.transcoder.image.JPEGTranscoder, PNGTranscoder, or TIFFTranscoder (note that these raster formats are in a different package).
(I'm not quite sure how Java finds the org.apache.batk.transcoder.* and org.apache.fop.svg.PDFTranscoder classes, since I don't see them in the batik-rasterizer.jar.)
Edit:
Although the simple commandline-compilation works with the batik-rasterizer.jar only, it's doing some sort of classloader magic to find all the necessary classes. In a more realistic case (building a project with Ant), you have to find the classes by hand. They can be found in batik-1.7.zip from the Batik project and fop-1.1.zip from the FOP project. From Batik, you need to compile with batik-transcoder.jar and run with
batik-transcoder.jar
batik-anim.jar
batik-awt-util.jar
batik-bridge.jar
batik-css.jar
batik-dom.jar
batik-ext.jar
batik-gvt.jar
batik-parser.jar
batik-script.jar
batik-svg-dom.jar
batik-util.jar
batik-xml.jar
xml-apis-ext.jar
From FOP, you need to compile with fop.jar and run with
fop.jar
avalon-framework-4.2.0.jar
xmlgraphics-commons-1.5.jar
I finally managed to find the appropriate lines of code to solve this using the Batik.
You need to have the SVG file and the resulting PDF as files on the disk, i.e. I couldn't find a way to do it in-memory (I am writing a HTTP Servlet so I have no intrinsic need to write anything as a file, ideally I would stream the result to the HTTP client). I used File.createTemporaryFile to create a file to dump out my SVG to a file, and for the resulting PDF to be written to.
So the lines I used are the following:
import org.apache.batik.apps.rasterizer.DestinationType;
import org.apache.batik.apps.rasterizer.SVGConverter;
import ...
// SVG available as a DOM object (created programatically by my program)
Document svgXmlDoc = ...
// Save this SVG into a file (required by SVG -> PDF transformation process)
File svgFile = File.createTempFile("graphic-", ".svg");
Transformer transformer = TransformerFactory.newInstance().newTransformer();
DOMSource source2 = new DOMSource(svgXmlDoc);
FileOutputStream fOut = new FileOutputStream(svgFile);
try { transformer.transform(source2, new StreamResult(fOut)); }
finally { fOut.close(); }
// Convert the SVG into PDF
File outputFile = File.createTempFile("result-", ".pdf");
SVGConverter converter = new SVGConverter();
converter.setDestinationType(DestinationType.PDF);
converter.setSources(new String[] { svgFile.toString() });
converter.setDst(outputFile);
converter.execute();
And I have the following JARs (search using Google to find the projects and download them):
avalon-framework-4.2.0.jar
batik-all-1.7.jar
commons-io-1.3.1.jar
commons-logging-1.0.4.jar
fop-0.95.jar
log4j-1.2.15.jar
xml-apis-ext.jar
xmlgraphics-commons-1.3.1.jar
you will need a libray for rendering svg's and pdf's.
I recommend SVG salamander for the former, and iText for the latter. With svg salamander you can to read the svg and create an image object, and with itext you can write that image to a pdf.
I use Altsoft Xml2PDF. If I understood correctly all your needs and requirement, you'd better try their Server version of Xml2PDF.
All you need is phantomjs. You don't need the unwieldy Batik for this at all; just get to a point where you can run phantomjs, calling rasterize.js, using the url of the pdf as a source, and a location as the output. Depending on what you want to do with the .pdf, you don't even need Java.
http://phantomjs.org/screen-capture.html
Look at the part starting with "Beside PNG format, PhantomJS supports JPEG, GIF, and PDF."