Re: Failure Parsing XML Document from Servlet
The problem was that I was using an XMLWriter instead of a StringBuilder and
a normal file writer. XMLWriter was adding additional and invalid
characters.
Thanks everybody for taking the time to help me!
On Fri, Sep 30, 2011 at 1:31 AM, Thomas Broyer t.bro...@gmail.com wrote:
On Thursday, September 29, 2011 10:39:40 PM UTC+2, Laura Bickle wrote:
Hi Jeff,
I set the content type like so: response.setContentType(text/**xml);
I think MIME is a superset of content type. I don't explicitly set any
other MIME things. How do I look up the MIME type of a file?
My previous errors are from firefox. Per your suggestion, I tried using
safari and chrome instead and they each gave me this error. The first line
is the result of requesting the xml file. The second line comes from trying
to parse it.
(-:-) 2011-09-29 13:32:28,825 [DEBUG] result:?xml version=1.0
encoding=UTF-8?stuff
IIRC, some browsers (can't remember which ones) choke on the XMLDecl when
it specifies an encoding; because you're parsing a String, which is a stream
of characters, and encodings only applies to streams of bytes (to actually
turn the bytes into characters).
Try trimming the XMLDecl from your XML before giving it to
XMLParser.parse().
Something like (untested):
if (xml.substring(0, 5).equalsIgnoreCase(?xml)) {
xml = xml.substring(xml.indexOf(?) + 2);
}
Best would of course be to emit the encoding in the Content-Type HTTP
header (application/xml; charset=UTF-8) and not send the XMLDecl at all.
--
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Re: Failure Parsing XML Document from Servlet
On Thursday, September 29, 2011 10:39:40 PM UTC+2, Laura Bickle wrote:
Hi Jeff,
I set the content type like so: response.setContentType(text/xml);
I think MIME is a superset of content type. I don't explicitly set any
other MIME things. How do I look up the MIME type of a file?
My previous errors are from firefox. Per your suggestion, I tried using
safari and chrome instead and they each gave me this error. The first line
is the result of requesting the xml file. The second line comes from trying
to parse it.
(-:-) 2011-09-29 13:32:28,825 [DEBUG] result:?xml version=1.0
encoding=UTF-8?stuff
IIRC, some browsers (can't remember which ones) choke on the XMLDecl when it
specifies an encoding; because you're parsing a String, which is a stream of
characters, and encodings only applies to streams of bytes (to actually turn
the bytes into characters).
Try trimming the XMLDecl from your XML before giving it to
XMLParser.parse().
Something like (untested):
if (xml.substring(0, 5).equalsIgnoreCase(?xml)) {
xml = xml.substring(xml.indexOf(?) + 2);
}
Best would of course be to emit the encoding in the Content-Type HTTP header
(application/xml; charset=UTF-8) and not send the XMLDecl at all.
--
You received this message because you are subscribed to the Google Groups
Google Web Toolkit group.
To view this discussion on the web visit
https://groups.google.com/d/msg/google-web-toolkit/-/1h74ivOd75AJ.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to
google-web-toolkit+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Failure Parsing XML Document from Servlet
Hi AThinerCoin, I agree with you : I'm pretty sure it's not a GWT issue... 1) if you want to serve XML from your servlet, why do you need to parse it ? Simply serve it. That's all 2) did you set correct content type from your sevlet ? - response.setContentType(text/xml); 3) did you close your stream with the close() method of the OutPutStream ? 4) your GWT client receive a raw XML stream. What do you do with it ? I hope it helps. Regards. Karim Duran 2011/9/29 AThinerCoin athinerc...@gmail.com I'd like to pass an xml file to my gwt client. I created another servlet that fetches it from the local file system and returns the xml file when I call its url. If I go to the url from my browser, it looks fine. If I fetch the url from curl, it uses the gt;lt; kind of format. If I fetch the url from my gwt client, I get different results and error messages in development versus production mode. If I archive the xml file directly into the war, my program works perfectly. I'm pretty sure it's not a GWT issue, but I'm not sure where else to turn. Any guidance would be appreciated. In development, it looks like I don't get a result at all and my error is: (XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught Exception: com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: error on line 1 at column 1: Extra content at the end of the document at com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java: 38) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java: 326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java: 207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java: 132) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java: 561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java: 269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java: 91) at com.google.gwt.xml.client.impl.XMLParserImplSafari.parseImpl(XMLParserImplSafari.java) at com.google.gwt.xml.client.impl.XMLParserImpl.parse(XMLParserImpl.java: 278) at com.google.gwt.xml.client.XMLParser.parse(XMLParser.java:47) In production, I get what looks like the right result back (based on Log statements), and my error is: com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: ? xml version=1.0 encoding=UTF-8?stuff supertagGriffinDashboard/supertag titlePubli at Unknown.java_lang_Throwable_fillInStackTrace__Ljava_lang_Throwable_2(Unknown Source) at Unknown.com_google_gwt_xml_client_DOMException_DOMException__SLjava_lang_String_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_DOMParseException_DOMParseException__Ljava_lang_String_2Ljava_lang_Throwable_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_XMLParserImpl_ $parse__Lcom_google_gwt_xml_client_impl_XMLParserImpl_2Ljava_lang_String_2Lcom_google_gwt_xml_client_Document_2(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_Config_ $parseChart__Lcom_atti_aas_griffin_dashboard_client_Config_2Ljava_lang_String_2V(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_Config_Config__Ljava_lang_String_2V(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_GWTClient $1_onResponseReceived__Lcom_google_gwt_http_client_Request_2Lcom_google_gwt_http_client_Response_2V(Unknown Source) at Unknown.com_google_gwt_http_client_Request_ $fireOnResponseReceived__Lcom_google_gwt_http_client_Request_2Lcom_google_gwt_http_client_RequestCallback_2V(Unknown Source) at Unknown.com_google_gwt_http_client_RequestBuilder $1_onReadyStateChange__Lcom_google_gwt_xhr_client_XMLHttpRequest_2V(Unknown Source) at Unknown.anonymous(Unknown Source) at Unknown.com_google_gwt_core_client_impl_Impl_apply__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source) at Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source) at Unknown.anonymous(Unknown Source) at Unknown.anonymous(Unknown Source) at Unknown.anonymous(Unknown Source) Caused by:
Re: Failure Parsing XML Document from Servlet
On 09/28/2011 10:01 PM, AThinerCoin wrote: I'd like to pass an xml file to my gwt client. I created another servlet that fetches it from the local file system and returns the xml file when I call its url. If I go to the url from my browser, it looks fine. If I fetch the url from curl, it uses the gt;lt; kind of format. If I fetch the url from my gwt client, I get different results and error messages in development versus production mode. If I archive the xml file directly into the war, my program works perfectly. I'm pretty sure it's not a GWT issue, but I'm not sure where else to turn. Any guidance would be appreciated. 1) Try another client, since parsing is handled by the browser. That may provide a different set of clues; 2) What does xmllint say about this document? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Failure Parsing XML Document from Servlet
Hi Karim,
Thanks for your suggestions, but I'm still getting errors. I've included
the relevant code snippets below. I may be missing something you've
mentioned.
Thanks again,
Laura
On Thu, Sep 29, 2011 at 6:02 AM, karim duran karim.du...@gmail.com wrote:
Hi AThinerCoin,
I agree with you : I'm pretty sure it's not a GWT issue...
1) if you want to serve XML from your servlet, why do you need to parse it
? Simply serve it. That's all
The servlet that serves the xml file just serves the xml file. The errors
come from the GWT Client that requests and tries to use the xml file.
2) did you set correct content type from your sevlet ? -
response.setContentType(text/xml);
Yes, the response type is text/xml.
3) did you close your stream with the close() method of the OutPutStream ?
I thought I did, but I may be missing something. Servlet code snippet:
String record = ;
try{
BufferedReader reader = new BufferedReader(new
FileReader(filename));
String line;
while ((line = reader.readLine()) != null){
record += line;
}
reader.close();
XMLWriter writer = new XMLWriter(out);
writer.write(record);
writer.close();
}catch (Exception e){
System.err.format(Exception occurred trying to read '%s'.,
filename);
e.printStackTrace();
}
4) your GWT client receive a raw XML stream. What do you do with it ?
import com.google.gwt.xml.client.XMLParser;
...
Document dom = XMLParser.parse(xmlString); // This is the line that
gives me errors.
Element docEle = dom.getDocumentElement();
I hope it helps.
Regards.
Karim Duran
2011/9/29 AThinerCoin athinerc...@gmail.com
I'd like to pass an xml file to my gwt client. I created another
servlet that fetches it from the local file system and returns the xml
file when I call its url.
If I go to the url from my browser, it looks fine. If I fetch the url
from curl, it uses the gt;lt; kind of format. If I fetch the url
from my gwt client, I get different results and error messages in
development versus production mode.
If I archive the xml file directly into the war, my program works
perfectly.
I'm pretty sure it's not a GWT issue, but I'm not sure where else to
turn. Any guidance would be appreciated.
In development, it looks like I don't get a result at all and my error
is:
(XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught
Exception:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse:
error on line 1 at column 1: Extra content at the end of the document
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java:
38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at
com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:
326)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:
207)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:
132)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:
561)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:
269)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:
91)
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.parseImpl(XMLParserImplSafari.java)
at
com.google.gwt.xml.client.impl.XMLParserImpl.parse(XMLParserImpl.java:
278)
at com.google.gwt.xml.client.XMLParser.parse(XMLParser.java:47)
In production, I get what looks like the right result back (based on
Log statements), and my error is:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: ?
xml version=1.0 encoding=UTF-8?stuff
supertagGriffinDashboard/supertag titlePubli
at
Unknown.java_lang_Throwable_fillInStackTrace__Ljava_lang_Throwable_2(Unknown
Source)
at
Unknown.com_google_gwt_xml_client_DOMException_DOMException__SLjava_lang_String_2V(Unknown
Source)
at
Unknown.com_google_gwt_xml_client_impl_DOMParseException_DOMParseException__Ljava_lang_String_2Ljava_lang_Throwable_2V(Unknown
Source)
at Unknown.com_google_gwt_xml_client_impl_XMLParserImpl_
$parse__Lcom_google_gwt_xml_client_impl_XMLParserImpl_2Ljava_lang_String_2Lcom_google_gwt_xml_client_Document_2(Unknown
Re: Failure Parsing XML Document from Servlet
Could you attach the generated XML document if possible, or do you know if
it's well-formatted and compliant to the xml spec?
--
Harpal Grover
President
*Harpal Grover Consulting Inc*
On Thu, Sep 29, 2011 at 2:41 PM, Laura Bickle bickle.la...@gmail.comwrote:
Hi Karim,
Thanks for your suggestions, but I'm still getting errors. I've included
the relevant code snippets below. I may be missing something you've
mentioned.
Thanks again,
Laura
On Thu, Sep 29, 2011 at 6:02 AM, karim duran karim.du...@gmail.comwrote:
Hi AThinerCoin,
I agree with you : I'm pretty sure it's not a GWT issue...
1) if you want to serve XML from your servlet, why do you need to parse it
? Simply serve it. That's all
The servlet that serves the xml file just serves the xml file. The errors
come from the GWT Client that requests and tries to use the xml file.
2) did you set correct content type from your sevlet ? -
response.setContentType(text/xml);
Yes, the response type is text/xml.
3) did you close your stream with the close() method of the OutPutStream ?
I thought I did, but I may be missing something. Servlet code snippet:
String record = ;
try{
BufferedReader reader = new BufferedReader(new
FileReader(filename));
String line;
while ((line = reader.readLine()) != null){
record += line;
}
reader.close();
XMLWriter writer = new XMLWriter(out);
writer.write(record);
writer.close();
}catch (Exception e){
System.err.format(Exception occurred trying to read '%s'.,
filename);
e.printStackTrace();
}
4) your GWT client receive a raw XML stream. What do you do with it ?
import com.google.gwt.xml.client.XMLParser;
...
Document dom = XMLParser.parse(xmlString); // This is the line that
gives me errors.
Element docEle = dom.getDocumentElement();
I hope it helps.
Regards.
Karim Duran
2011/9/29 AThinerCoin athinerc...@gmail.com
I'd like to pass an xml file to my gwt client. I created another
servlet that fetches it from the local file system and returns the xml
file when I call its url.
If I go to the url from my browser, it looks fine. If I fetch the url
from curl, it uses the gt;lt; kind of format. If I fetch the url
from my gwt client, I get different results and error messages in
development versus production mode.
If I archive the xml file directly into the war, my program works
perfectly.
I'm pretty sure it's not a GWT issue, but I'm not sure where else to
turn. Any guidance would be appreciated.
In development, it looks like I don't get a result at all and my error
is:
(XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught
Exception:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse:
error on line 1 at column 1: Extra content at the end of the document
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java:
38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at
com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:
326)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:
207)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:
132)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:
561)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:
269)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:
91)
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.parseImpl(XMLParserImplSafari.java)
at
com.google.gwt.xml.client.impl.XMLParserImpl.parse(XMLParserImpl.java:
278)
at com.google.gwt.xml.client.XMLParser.parse(XMLParser.java:47)
In production, I get what looks like the right result back (based on
Log statements), and my error is:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: ?
xml version=1.0 encoding=UTF-8?stuff
supertagGriffinDashboard/supertag titlePubli
at
Unknown.java_lang_Throwable_fillInStackTrace__Ljava_lang_Throwable_2(Unknown
Source)
at
Unknown.com_google_gwt_xml_client_DOMException_DOMException__SLjava_lang_String_2V(Unknown
Source)
at
Re: Failure Parsing XML Document from Servlet
Hi Harpal,
I've attached my xml file as graphs.xml. Please let me know if you can't
see it.
Thanks,
Laura
On Thu, Sep 29, 2011 at 12:13 PM, Harpal Grover harpal.gro...@gmail.comwrote:
Could you attach the generated XML document if possible, or do you know if
it's well-formatted and compliant to the xml spec?
--
Harpal Grover
President
*Harpal Grover Consulting Inc*
On Thu, Sep 29, 2011 at 2:41 PM, Laura Bickle bickle.la...@gmail.comwrote:
Hi Karim,
Thanks for your suggestions, but I'm still getting errors. I've included
the relevant code snippets below. I may be missing something you've
mentioned.
Thanks again,
Laura
On Thu, Sep 29, 2011 at 6:02 AM, karim duran karim.du...@gmail.comwrote:
Hi AThinerCoin,
I agree with you : I'm pretty sure it's not a GWT issue...
1) if you want to serve XML from your servlet, why do you need to parse
it ? Simply serve it. That's all
The servlet that serves the xml file just serves the xml file. The errors
come from the GWT Client that requests and tries to use the xml file.
2) did you set correct content type from your sevlet ? -
response.setContentType(text/xml);
Yes, the response type is text/xml.
3) did you close your stream with the close() method of the OutPutStream
?
I thought I did, but I may be missing something. Servlet code snippet:
String record = ;
try{
BufferedReader reader = new BufferedReader(new
FileReader(filename));
String line;
while ((line = reader.readLine()) != null){
record += line;
}
reader.close();
XMLWriter writer = new XMLWriter(out);
writer.write(record);
writer.close();
}catch (Exception e){
System.err.format(Exception occurred trying to read '%s'.,
filename);
e.printStackTrace();
}
4) your GWT client receive a raw XML stream. What do you do with it ?
import com.google.gwt.xml.client.XMLParser;
...
Document dom = XMLParser.parse(xmlString); // This is the line
that gives me errors.
Element docEle = dom.getDocumentElement();
I hope it helps.
Regards.
Karim Duran
2011/9/29 AThinerCoin athinerc...@gmail.com
I'd like to pass an xml file to my gwt client. I created another
servlet that fetches it from the local file system and returns the xml
file when I call its url.
If I go to the url from my browser, it looks fine. If I fetch the url
from curl, it uses the gt;lt; kind of format. If I fetch the url
from my gwt client, I get different results and error messages in
development versus production mode.
If I archive the xml file directly into the war, my program works
perfectly.
I'm pretty sure it's not a GWT issue, but I'm not sure where else to
turn. Any guidance would be appreciated.
In development, it looks like I don't get a result at all and my error
is:
(XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught
Exception:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse:
error on line 1 at column 1: Extra content at the end of the document
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java:
38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at
com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:
326)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:
207)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:
132)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:
561)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:
269)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:
91)
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.parseImpl(XMLParserImplSafari.java)
at
com.google.gwt.xml.client.impl.XMLParserImpl.parse(XMLParserImpl.java:
278)
at com.google.gwt.xml.client.XMLParser.parse(XMLParser.java:47)
In production, I get what looks like the right result back (based on
Log statements), and my error is:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: ?
xml version=1.0 encoding=UTF-8?stuff
supertagGriffinDashboard/supertag titlePubli
at
Re: Failure Parsing XML Document from Servlet
On 09/29/2011 12:41 PM, Laura Bickle wrote: Hi Jeff, I tried using curl. It showed my angle brackets as gt; and lt; but I don't think that matters to my code because it looks right in the print statements. I don't think my xml is actually malformed because, when I include the xml file directly in the archive, my gwt client parses it without problem. Thank you for suggesting xmllint. I hadn't heard of it before. I'll try it and see if it provides any clues. Thanks again for your help xmllint doesn't complain, and neither does Emacs' nXML mode. So, the problem is the way the data are sent to the client from the server. Someone else asked, maybe I missed the answer: what is the document's MIME type? Also, did you try another browser? For example, I noticed that IE had problems with one of my documents when FF did not. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Failure Parsing XML Document from Servlet
Thanks Laura. The xml definitely doesn't seem to have any errors. However,
this line in the XML document looks a little suspicious when it comes to
parsing it:
titlePublishers -- Executive Summary for Friday, September 16th at
5:00pm/title
Could you try removing the -- from the title and see if the document
parses?
On Thu, Sep 29, 2011 at 4:08 PM, Laura Bickle bickle.la...@gmail.comwrote:
Hi Harpal,
I've attached my xml file as graphs.xml. Please let me know if you can't
see it.
Thanks,
Laura
On Thu, Sep 29, 2011 at 12:13 PM, Harpal Grover
harpal.gro...@gmail.comwrote:
Could you attach the generated XML document if possible, or do you know if
it's well-formatted and compliant to the xml spec?
--
Harpal Grover
President
*Harpal Grover Consulting Inc*
On Thu, Sep 29, 2011 at 2:41 PM, Laura Bickle bickle.la...@gmail.comwrote:
Hi Karim,
Thanks for your suggestions, but I'm still getting errors. I've included
the relevant code snippets below. I may be missing something you've
mentioned.
Thanks again,
Laura
On Thu, Sep 29, 2011 at 6:02 AM, karim duran karim.du...@gmail.comwrote:
Hi AThinerCoin,
I agree with you : I'm pretty sure it's not a GWT issue...
1) if you want to serve XML from your servlet, why do you need to parse
it ? Simply serve it. That's all
The servlet that serves the xml file just serves the xml file. The
errors come from the GWT Client that requests and tries to use the xml
file.
2) did you set correct content type from your sevlet ? -
response.setContentType(text/xml);
Yes, the response type is text/xml.
3) did you close your stream with the close() method of the OutPutStream
?
I thought I did, but I may be missing something. Servlet code snippet:
String record = ;
try{
BufferedReader reader = new BufferedReader(new
FileReader(filename));
String line;
while ((line = reader.readLine()) != null){
record += line;
}
reader.close();
XMLWriter writer = new XMLWriter(out);
writer.write(record);
writer.close();
}catch (Exception e){
System.err.format(Exception occurred trying to read '%s'.,
filename);
e.printStackTrace();
}
4) your GWT client receive a raw XML stream. What do you do with it ?
import com.google.gwt.xml.client.XMLParser;
...
Document dom = XMLParser.parse(xmlString); // This is the line
that gives me errors.
Element docEle = dom.getDocumentElement();
I hope it helps.
Regards.
Karim Duran
2011/9/29 AThinerCoin athinerc...@gmail.com
I'd like to pass an xml file to my gwt client. I created another
servlet that fetches it from the local file system and returns the xml
file when I call its url.
If I go to the url from my browser, it looks fine. If I fetch the url
from curl, it uses the gt;lt; kind of format. If I fetch the url
from my gwt client, I get different results and error messages in
development versus production mode.
If I archive the xml file directly into the war, my program works
perfectly.
I'm pretty sure it's not a GWT issue, but I'm not sure where else to
turn. Any guidance would be appreciated.
In development, it looks like I don't get a result at all and my error
is:
(XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught
Exception:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse:
error on line 1 at column 1: Extra content at the end of the document
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java:
38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at
com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:
326)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:
207)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:
132)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:
561)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:
269)
at
com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:
91)
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.parseImpl(XMLParserImplSafari.java)
at
Re: Failure Parsing XML Document from Servlet
Hi Harpal,
Thanks for your suggestion. I tried removing the dashes. The log
statements updated to reflect the change, but I still get the same error.
Laura
On Thu, Sep 29, 2011 at 1:19 PM, Harpal Grover harpal.gro...@gmail.comwrote:
Thanks Laura. The xml definitely doesn't seem to have any errors. However,
this line in the XML document looks a little suspicious when it comes to
parsing it:
titlePublishers -- Executive Summary for Friday, September 16th at
5:00pm/title
Could you try removing the -- from the title and see if the document
parses?
On Thu, Sep 29, 2011 at 4:08 PM, Laura Bickle bickle.la...@gmail.comwrote:
Hi Harpal,
I've attached my xml file as graphs.xml. Please let me know if you can't
see it.
Thanks,
Laura
On Thu, Sep 29, 2011 at 12:13 PM, Harpal Grover
harpal.gro...@gmail.comwrote:
Could you attach the generated XML document if possible, or do you know
if it's well-formatted and compliant to the xml spec?
--
Harpal Grover
President
*Harpal Grover Consulting Inc*
On Thu, Sep 29, 2011 at 2:41 PM, Laura Bickle bickle.la...@gmail.comwrote:
Hi Karim,
Thanks for your suggestions, but I'm still getting errors. I've
included the relevant code snippets below. I may be missing something
you've mentioned.
Thanks again,
Laura
On Thu, Sep 29, 2011 at 6:02 AM, karim duran karim.du...@gmail.comwrote:
Hi AThinerCoin,
I agree with you : I'm pretty sure it's not a GWT issue...
1) if you want to serve XML from your servlet, why do you need to parse
it ? Simply serve it. That's all
The servlet that serves the xml file just serves the xml file. The
errors come from the GWT Client that requests and tries to use the xml
file.
2) did you set correct content type from your sevlet ? -
response.setContentType(text/xml);
Yes, the response type is text/xml.
3) did you close your stream with the close() method of the
OutPutStream ?
I thought I did, but I may be missing something. Servlet code snippet:
String record = ;
try{
BufferedReader reader = new BufferedReader(new
FileReader(filename));
String line;
while ((line = reader.readLine()) != null){
record += line;
}
reader.close();
XMLWriter writer = new XMLWriter(out);
writer.write(record);
writer.close();
}catch (Exception e){
System.err.format(Exception occurred trying to read '%s'.,
filename);
e.printStackTrace();
}
4) your GWT client receive a raw XML stream. What do you do with it ?
import com.google.gwt.xml.client.XMLParser;
...
Document dom = XMLParser.parse(xmlString); // This is the line
that gives me errors.
Element docEle = dom.getDocumentElement();
I hope it helps.
Regards.
Karim Duran
2011/9/29 AThinerCoin athinerc...@gmail.com
I'd like to pass an xml file to my gwt client. I created another
servlet that fetches it from the local file system and returns the xml
file when I call its url.
If I go to the url from my browser, it looks fine. If I fetch the url
from curl, it uses the gt;lt; kind of format. If I fetch the url
from my gwt client, I get different results and error messages in
development versus production mode.
If I archive the xml file directly into the war, my program works
perfectly.
I'm pretty sure it's not a GWT issue, but I'm not sure where else to
turn. Any guidance would be appreciated.
In development, it looks like I don't get a result at all and my error
is:
(XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught
Exception:
com.google.gwt.xml.client.impl.DOMParseException: Failed to parse:
error on line 1 at column 1: Extra content at the end of the document
at
com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java:
38)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
at
com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71)
at
com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:
167)
at
com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:
326)
at
com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:
207)
at
com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:
132)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:
561)
at
com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:
Re: Failure Parsing XML Document from Servlet
On 09/29/2011 01:39 PM, Laura Bickle wrote: Hi Jeff, I set the content type like so: response.setContentType(text/xml); I think MIME is a superset of content type. I don't explicitly set any other MIME things. How do I look up the MIME type of a file? http://en.wikipedia.org/wiki/XML_and_MIME My previous errors are from firefox. Per your suggestion, I tried using safari and chrome instead and they each gave me this error. The first line is the result of requesting the xml file. The second line comes from trying to parse it. (document snipped) (-:-) 2011-09-29 13:32:28,838 [FATAL] Uncaught Exception: *com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: error on line 1 at column 1: Document is empty Well, that's a clue ;- I tried the following: final String s = ?xml version=\1.0\ encoding=\UTF-8\?stuff ..; final Document doc = XMLParser.parse(s); It had no problems. The only differences: 1) I escaped the quote characters; 2) I removed the line breaks (^J) in your file to convert it to a string. I'd investigate the line breaks, and possibly some garbage at the end of the file that gets sent to the host. Also, depending on your server, you might be sending a byte order mark to the client and not realizing it. * at Unknown.java_lang_Throwable_fillInStackTrace__Ljava_lang_Throwable_2(Unknown Source) at Unknown.com_google_gwt_xml_client_DOMException_DOMException__SLjava_lang_String_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_DOMParseException_DOMParseException__Ljava_lang_String_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_XMLParserImplSafari_throwDOMParseException__Ljava_lang_String_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_XMLParserImplSafari_$parseImpl__Lcom_google_gwt_xml_client_impl_XMLParserImplSafari_2Ljava_lang_String_2Lcom_google_gwt_core_client_JavaScriptObject_2(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_XMLParserImpl_$parse__Lcom_google_gwt_xml_client_impl_XMLParserImpl_2Ljava_lang_String_2Lcom_google_gwt_xml_client_Document_2(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_Config_$parseChart__Lcom_atti_aas_griffin_dashboard_client_Config_2Ljava_lang_String_2V(Unknown Source) On Thu, Sep 29, 2011 at 1:18 PM, Jeff Chimene jchim...@gmail.com mailto:jchim...@gmail.com wrote: On 09/29/2011 12:41 PM, Laura Bickle wrote: Hi Jeff, I tried using curl. It showed my angle brackets as gt; and lt; but I don't think that matters to my code because it looks right in the print statements. I don't think my xml is actually malformed because, when I include the xml file directly in the archive, my gwt client parses it without problem. Thank you for suggesting xmllint. I hadn't heard of it before. I'll try it and see if it provides any clues. Thanks again for your help xmllint doesn't complain, and neither does Emacs' nXML mode. So, the problem is the way the data are sent to the client from the server. Someone else asked, maybe I missed the answer: what is the document's MIME type? Also, did you try another browser? For example, I noticed that IE had problems with one of my documents when FF did not. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Failure Parsing XML Document from Servlet
Hi Jeff, I tried using curl. It showed my angle brackets as gt; and lt; but I don't think that matters to my code because it looks right in the print statements. I don't think my xml is actually malformed because, when I include the xml file directly in the archive, my gwt client parses it without problem. Thank you for suggesting xmllint. I hadn't heard of it before. I'll try it and see if it provides any clues. Thanks again for your help On Thu, Sep 29, 2011 at 11:27 AM, Jeff Chimene jchim...@gmail.com wrote: On 09/28/2011 10:01 PM, AThinerCoin wrote: I'd like to pass an xml file to my gwt client. I created another servlet that fetches it from the local file system and returns the xml file when I call its url. If I go to the url from my browser, it looks fine. If I fetch the url from curl, it uses the gt;lt; kind of format. If I fetch the url from my gwt client, I get different results and error messages in development versus production mode. If I archive the xml file directly into the war, my program works perfectly. I'm pretty sure it's not a GWT issue, but I'm not sure where else to turn. Any guidance would be appreciated. 1) Try another client, since parsing is handled by the browser. That may provide a different set of clues; 2) What does xmllint say about this document? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Failure Parsing XML Document from Servlet
I'd like to pass an xml file to my gwt client. I created another servlet that fetches it from the local file system and returns the xml file when I call its url. If I go to the url from my browser, it looks fine. If I fetch the url from curl, it uses the gt;lt; kind of format. If I fetch the url from my gwt client, I get different results and error messages in development versus production mode. If I archive the xml file directly into the war, my program works perfectly. I'm pretty sure it's not a GWT issue, but I'm not sure where else to turn. Any guidance would be appreciated. In development, it looks like I don't get a result at all and my error is: (XMLParserImplSafari.java:38) 2011-09-28 18:13:24,828 [FATAL] Uncaught Exception: com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: error on line 1 at column 1: Extra content at the end of the document at com.google.gwt.xml.client.impl.XMLParserImplSafari.throwDOMParseException(XMLParserImplSafari.java: 38) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java: 39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java: 25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java: 167) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java: 326) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java: 207) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java: 132) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java: 561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java: 269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java: 91) at com.google.gwt.xml.client.impl.XMLParserImplSafari.parseImpl(XMLParserImplSafari.java) at com.google.gwt.xml.client.impl.XMLParserImpl.parse(XMLParserImpl.java: 278) at com.google.gwt.xml.client.XMLParser.parse(XMLParser.java:47) In production, I get what looks like the right result back (based on Log statements), and my error is: com.google.gwt.xml.client.impl.DOMParseException: Failed to parse: ? xml version=1.0 encoding=UTF-8?stuff supertagGriffinDashboard/supertag titlePubli at Unknown.java_lang_Throwable_fillInStackTrace__Ljava_lang_Throwable_2(Unknown Source) at Unknown.com_google_gwt_xml_client_DOMException_DOMException__SLjava_lang_String_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_DOMParseException_DOMParseException__Ljava_lang_String_2Ljava_lang_Throwable_2V(Unknown Source) at Unknown.com_google_gwt_xml_client_impl_XMLParserImpl_ $parse__Lcom_google_gwt_xml_client_impl_XMLParserImpl_2Ljava_lang_String_2Lcom_google_gwt_xml_client_Document_2(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_Config_ $parseChart__Lcom_atti_aas_griffin_dashboard_client_Config_2Ljava_lang_String_2V(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_Config_Config__Ljava_lang_String_2V(Unknown Source) at Unknown.com_atti_aas_griffin_dashboard_client_GWTClient $1_onResponseReceived__Lcom_google_gwt_http_client_Request_2Lcom_google_gwt_http_client_Response_2V(Unknown Source) at Unknown.com_google_gwt_http_client_Request_ $fireOnResponseReceived__Lcom_google_gwt_http_client_Request_2Lcom_google_gwt_http_client_RequestCallback_2V(Unknown Source) at Unknown.com_google_gwt_http_client_RequestBuilder $1_onReadyStateChange__Lcom_google_gwt_xhr_client_XMLHttpRequest_2V(Unknown Source) at Unknown.anonymous(Unknown Source) at Unknown.com_google_gwt_core_client_impl_Impl_apply__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source) at Unknown.com_google_gwt_core_client_impl_Impl_entry0__Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2Ljava_lang_Object_2(Unknown Source) at Unknown.anonymous(Unknown Source) at Unknown.anonymous(Unknown Source) at Unknown.anonymous(Unknown Source) Caused by: com.google.gwt.core.client.JavaScriptException: (Error): XML Parsing Error: not well-formed -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
