Re: [flexcoders] Re: Detect exeptions - help!!
Thanks Steve, I will give it a go. My problem with the communication was that I didn't know the order of messages between exe and swf and so couldn't fix it. Perhaps I can now. John valdhor wrote: John Yes it does. It acts as a proxy between whatever application you are using and whatever you are trying to contact. It automagically sets up Firefox and Internet Exploiter. For other apps you may need to manually set the proxy to the local machine and port. BTW. My name is Steve - Valdhor was my ADD alias back in my university days ;-} --- In flexcoders@yahoogroups.com, John McCormack j...@... wrote: Thanks valdhor, Does Charles manage to capture the local host traffic? I want to capture the messages between an exe and an Adobe swf file. John valdhor wrote: My favorite (The one I own) is Charles (http://www.charlesproxy.com). The two things that made it my pick is that it is cross platform and that it understands AMF (ie. it will show you the returned objects and what they contain - invaluable for debugging remote objects) --- In flexcoders@yahoogroups.com, oneworld95 oneworld95@ wrote: John -- WireShark (free download from http://www.wireshark.org/) is my current favorite. It shows all the network traffic and can be filtered based on IP, etc. I've blogged about it here with instructions on using it: http://devharbor.blogspot.com/2009/02/using-wireshark-to-sniff-http-packets.html - Alex C --- In flexcoders@yahoogroups.com, oneworld95 oneworld95@ wrote: Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aharui@ wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links
Re: [flexcoders] Re: Detect exeptions - help!!
Thanks Alex. I had a peek at your blog and followed the link for localhost but they say it doesn't work at for the local ip address of 127.0.0.1 - on Windows. All the same, thank you for telling me about it, it sounds really good. I shall give it a go for other purposes. I wonder if Charles will capture localhost traffic? John oneworld95 wrote: John -- WireShark (free download from http://www.wireshark.org/) is my current favorite. It shows all the network traffic and can be filtered based on IP, etc. I've blogged about it here with instructions on using it: http://devharbor.blogspot.com/2009/02/using-wireshark-to-sniff-http-packets.html - Alex C --- In flexcoders@yahoogroups.com, oneworld95 oneworl...@... wrote: Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aharui@ wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links
Re: [flexcoders] Re: Detect exeptions - help!!
Thanks valdhor, Does Charles manage to capture the local host traffic? I want to capture the messages between an exe and an Adobe swf file. John valdhor wrote: My favorite (The one I own) is Charles (http://www.charlesproxy.com). The two things that made it my pick is that it is cross platform and that it understands AMF (ie. it will show you the returned objects and what they contain - invaluable for debugging remote objects) --- In flexcoders@yahoogroups.com, oneworld95 oneworl...@... wrote: John -- WireShark (free download from http://www.wireshark.org/) is my current favorite. It shows all the network traffic and can be filtered based on IP, etc. I've blogged about it here with instructions on using it: http://devharbor.blogspot.com/2009/02/using-wireshark-to-sniff-http-packets.html - Alex C --- In flexcoders@yahoogroups.com, oneworld95 oneworld95@ wrote: Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aharui@ wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links
[flexcoders] Re: Detect exeptions - help!!
John Yes it does. It acts as a proxy between whatever application you are using and whatever you are trying to contact. It automagically sets up Firefox and Internet Exploiter. For other apps you may need to manually set the proxy to the local machine and port. BTW. My name is Steve - Valdhor was my ADD alias back in my university days ;-} --- In flexcoders@yahoogroups.com, John McCormack j...@... wrote: Thanks valdhor, Does Charles manage to capture the local host traffic? I want to capture the messages between an exe and an Adobe swf file. John valdhor wrote: My favorite (The one I own) is Charles (http://www.charlesproxy.com). The two things that made it my pick is that it is cross platform and that it understands AMF (ie. it will show you the returned objects and what they contain - invaluable for debugging remote objects) --- In flexcoders@yahoogroups.com, oneworld95 oneworld95@ wrote: John -- WireShark (free download from http://www.wireshark.org/) is my current favorite. It shows all the network traffic and can be filtered based on IP, etc. I've blogged about it here with instructions on using it: http://devharbor.blogspot.com/2009/02/using-wireshark-to-sniff-http-packets.html - Alex C --- In flexcoders@yahoogroups.com, oneworld95 oneworld95@ wrote: Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aharui@ wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated. -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Alternative FAQ location: https://share.acrobat.com/adc/document.do?docid=942dbdc8-e469-446f-b4cf-1e62079f6847 Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.comYahoo! Groups Links
[flexcoders] Re: Detect exeptions - help!!
Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aha...@... wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated.
[flexcoders] Re: Detect exeptions - help!!
John -- WireShark (free download from http://www.wireshark.org/) is my current favorite. It shows all the network traffic and can be filtered based on IP, etc. I've blogged about it here with instructions on using it: http://devharbor.blogspot.com/2009/02/using-wireshark-to-sniff-http-packets.html - Alex C --- In flexcoders@yahoogroups.com, oneworld95 oneworl...@... wrote: Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aharui@ wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated.
[flexcoders] Re: Detect exeptions - help!!
My favorite (The one I own) is Charles (http://www.charlesproxy.com). The two things that made it my pick is that it is cross platform and that it understands AMF (ie. it will show you the returned objects and what they contain - invaluable for debugging remote objects) --- In flexcoders@yahoogroups.com, oneworld95 oneworl...@... wrote: John -- WireShark (free download from http://www.wireshark.org/) is my current favorite. It shows all the network traffic and can be filtered based on IP, etc. I've blogged about it here with instructions on using it: http://devharbor.blogspot.com/2009/02/using-wireshark-to-sniff-http-packets.html - Alex C --- In flexcoders@yahoogroups.com, oneworld95 oneworld95@ wrote: Thanks, Alex. It's not hanging on the Flex side -- the server response is never received. Using WireShark (http://www.wireshark.org/), I was able to see it's not hanging at all, but continually sending messages to the Java servlet but getting nothing back in reply. That's what led me to investigate the Java code more closely. The BufferedImage object was receiving some JPG images that it couldn't handle; so it spun away for a while before throwing an exception. For whatever reason, the exception never made it back to the Flex side. All is well now: I took out the BufferedImage object and am passing the InputStream directly to the Java Advanced Imaging API code, which resizes the image and writes it to disk. One issue: JPG images with CMYK color spaces come out with their colors mangled; but that's a limitation of the server code and has nothing to do with Flex. - Alex --- In flexcoders@yahoogroups.com, Alex Harui aharui@ wrote: It would be unusual for Flex to hang waiting for the server. Use a network monitor to see what's going on. Is Flex really hung? You can't hit a button or anything? From: flexcoders@yahoogroups.com [mailto:flexcod...@yahoogroups.com] On Behalf Of oneworld95 Sent: Tuesday, February 03, 2009 7:25 AM To: flexcoders@yahoogroups.com Subject: [flexcoders] Detect exeptions - help!! I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated.
[flexcoders] Re: Detect exeptions - help!!
Found out a solution: The problem was in the BufferedImage object in the Java code. Java's BufferedImage couldn't handle some of the JPG's and was choking. Once I passed the InputStream directly to a method that uses the Java Advanced Imaging API, the problem went away. Using WireShark, I noticed that Flex kept calling the server and getting back a 404 error (therefore it seemed to be hanging, even though it was working behind the scenes). That convinced me it was a problem on the server with Java. - Alex --- In flexcoders@yahoogroups.com, oneworld95 oneworl...@... wrote: I've run into a very frustrating situation and need your help: - Flex uploads a file to the server - The server reads it into a Java BufferedImage object. - However, Java sometimes takes 40 seconds or longer to reply - In some cases it has difficulty reading the file. In the cases of problems, Flex just hangs. It doesn't reply with anything. Is it timing out? Any help appreciated.
