[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Scale your image on the client side. GWT/HTML has many options to work with and I'm in love with that! http://code.google.com/p/gwt-examples/wiki/gwt_hmtl5 Brandon Donnelson http://gwt-examples.googlecode.com http://c.gawkat.com -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
I'm going to try to get the job done with HTML5 for now, until the server has the features to do the job. http://google-web-toolkit.googlecode.com/svn/javadoc/latest/index.html?overview-summary.html http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#images -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
I get the correct byte count reading it this way:
private byte[] getImageBytes(BlobData blobData) {
if (blobData == null) {
return null;
}
BlobKey blobKey = new BlobKey(blobData.getKey());
if (blobKey == null) {
return null;
}
long filesize = blobData.getSize();
long chunkSize = 1024;
long startIndex = 0;
long endIndex = chunkSize;
ByteArrayOutputStream out = new ByteArrayOutputStream();
if (filesize > 1024) {
boolean theend = false;
while (theend == false) {
if (endIndex == filesize) {
theend = true;
}
System.out.println("startIndex=" + startIndex + " endIndex=" +
endIndex);
byte[] b = blobstoreService.fetchData(blobKey, startIndex,
endIndex);
try {
out.write(b);
} catch (IOException e) {
e.printStackTrace();
}
startIndex = endIndex + 1;
endIndex = startIndex + chunkSize;
if (endIndex > filesize) {
endIndex = filesize;
}
}
} else {
byte[] b = blobstoreService.fetchData(blobKey, 0, 1024);
try {
out.write(b);
} catch (IOException e) {
e.printStackTrace();
}
}
byte[] filebytes = out.toByteArray();
System.out.println("getImageBytes(): filebytes size: " + filebytes.
length + " blobData.size=" + blobData.getSize());
return filebytes;
}
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[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
I think my problem is in reading the bytes into the array. Oh, if this is it, I'm been barking up the wrong tree. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
I keep getting this error reading data from the blob.
[ERROR] createTiles(): Error: java.lang.IllegalArgumentException:
corruptJPEG
format
java.lang.IllegalArgumentException: corrupt JPEG format
atcom.google.appengine.api.images.ImageImpl.updateJpegDimensions(ImageImpl.java
:261)
atcom.google.appengine.api.images.ImageImpl.updateDimensions(ImageImpl.java
:146)
at com.google.appengine.api.images.ImageImpl.getWidth(ImageImpl.java:55)
atorg.gonevertical.core.server.service.image.Ga_Service_Image.createTiles(Ga_Service_Image.java
:250)
atorg.gonevertical.core.server.service.image.Ga_Service_Image.tileImage(Ga_Service_Image.java
:240)
atorg.gonevertical.core.server.service.image.Ga_Service_Image.tile(Ga_Service_Image.java
:229)
atorg.gonevertical.core.server.service.image.Ga_Service_Image.transform(Ga_Service_Image.java
:174)
atorg.gonevertical.core.server.servlet.Servlet_Task.startTransform(Servlet_Task.java
:127)
atorg.gonevertical.core.server.servlet.Servlet_Task.doGet(Servlet_Task.java
:84)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
511)
atorg.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java
:1166)
atcom.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java
:58)
atorg.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java
:1157)
atcom.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java
:43)
atorg.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java
:1157)
atcom.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java
:122)
atorg.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java
:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
388)
atorg.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java
:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
atcom.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java
:70)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
atcom.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java
:351)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
542)
atorg.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java
:923)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
atorg.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java
:409)
atorg.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java
:582)
This is how I am reading the image bytes:
private byte[] getImageBytes(BlobData blobData) {
if (blobData == null) {
return null;
}
BlobKey blobKey = new BlobKey(blobData.getKey());
if (blobKey == null) {
return null;
}
int chunkSize = 1024;
long startIndex = 0;
long endIndex = chunkSize;
long filesize = blobData.getSize();
boolean theend = false;
ByteArrayOutputStream out = new ByteArrayOutputStream();
while (theend == false) {
if (endIndex == filesize) {
theend = true;
}
System.out.println("startIndex=" + startIndex + " endIndex=" +
endIndex);
byte[] b = blobstoreService.fetchData(blobKey, startIndex, endIndex);
try {
out.write(b);
} catch (IOException e) {
e.printStackTrace();
}
startIndex = startIndex + chunkSize;
endIndex = endIndex + chunkSize;
if (endIndex >filesize) {
endIndex = filesize;
}
}
byte[] filebytes = out.toByteArray();
return filebytes;
}
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[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Need an Image Service Api Roadmap to new features scheduled to be added. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Need Exif methods. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Need a testImageEncoding() to verify its a good image. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Here is what I'd shoot for having app engine do on the server side, just like HTML5 could do on the client side. http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#images -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
This won't work either. I get the same funky colors. So far I think the cropping does not work at all. leftX = .05D; topY = .05D; rightX = .10D; bottomY = .10D; oldImage = ImagesServiceFactory.makeImageFromBlob(new BlobKey(fd.getBlobData().getKey())); Transform transform = ImagesServiceFactory.makeCrop(leftX, topY, rightX, bottomY); -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
This won't work: I can't figure out yet why I getting funky colors while cropping an image both on the dev and production side. For the file uploaded: Transform transform = ImagesServiceFactory.makeCrop(0, 0, .10, .10); Image newImage = imagesService.applyTransform(transform, oldImage); -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
It appears I made have spoke to soon about loading the byte data in making an image and using that to transform. I'm having a problem with cropping. It crops but the image is funky colored. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Another note: You can use any pure java readers on the market due to dependencies: http://code.google.com/appengine/forum/java-forum.html?place=topic%2Fgoogle-appengine-java%2F61pBMzfv7QU%2Fdiscussion -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Issue created: http://code.google.com/p/googleappengine/issues/detail?id=2990&q=image%20service&colspec=ID%20Type%20Component%20Status%20Stars%20Summary%20Language%20Priority%20Owner%20Log -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Another thing you can't do with the image api. So far, I can't make an image from byte data and resize it. Dang! Transform resize = ImagesServiceFactory.makeResize(resizeWidth.intValue(), resizeHeight.intValue()); oldImage = ImagesServiceFactory.makeImage(oldImage.getImageData()); Image newImage = imagesService.applyTransform(resize, oldImage); Brandon Donnelson http://c.gawkat.com http://gwt-examples.googlecode.com -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Tiling an image, (mapping it) is a challenge with a percentage, due to precision, or my perceived precision of division of the image. I figured out a work around I think using different math to divide it up to have a precise division that so no overlapping occurs. But to my point, I believe using a make crop with pixels would be nice. I still can do the job. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
Another image service request: ImageServiceFactory.makeCrop(..) - uses percentage parameters. I'd like a exact pixel (px) parameters. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
One more note: It would be nice to watermark my images with the api. -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
[appengine-java] Re: ImagesServiceFactory.makeImageFromBlob(blobKey) > image.getImageData() > gets NULL error >
The image service has limitations. It won't allow to resize a width thats > 4000px. The image service is for light duty small images. The current cameras on the market are producing very large images and scaling them is trouble some. I have panoramic images, where the widths are gigantic and this image service isn't cutting it. I suggest adding some beaf to the image service please :). I would think that this is a core function that spans most applications, and more beaf to it would conserve resources with the shared libraries across the entire app base. Besides, I am having to jump through lots of hoops to get this stuff to work, which is very boxy! Anybody use a library jar to do the job? Just my thoughts on image service Brandon -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-java@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
