Notes/Domino HTML parsen

V

VitaminB

Hello guys,

I want to parse a HTML Frameset (by Java) which is generated by a Lotus
Domino server. When I use a plain text HTML generated by Domino server,
my parser works fine. In contrast, then I try to parse the frameset I
get the following exception:

##########
Exception:
##########

java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:295)
at java.io.DataInputStream.readUTF(DataInputStream.java:661)
at conparse.main(conparse.java:30)
at conparseTest.testMain(conparseTest.java:17)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:85)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:58)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:60)
at java.lang.reflect.Method.invoke(Method.java:391)
at junit.framework.TestCase.runTest(TestCase.java:154)
at junit.framework.TestCase.runBare(TestCase.java:127)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:478)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:344)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)



###########
Code
###########

public class conparse{

conparse(){

}

public void main(){

try {

URL urlobj = new URL("http://dev0004/Test/frame.htm");

HttpURLConnection uc = null;
uc = (HttpURLConnection)urlobj.openConnection();
uc.setUseCaches(false);
DataInputStream is = new DataInputStream(uc.getInputStream());
String str =is.readUTF();
System.out.println(str);

HTMLEditorKit hKit = new HTMLEditorKit();
HTMLDocument hDoc = new HTMLDocument();
hKit.read(is, hDoc, 0);

HTMLDocument.Iterator it = hDoc.getIterator(HTML.Tag.FONT);

AttributeSet attSet = it.getAttributes();
String s = (String)attSet.getAttribute(HTML.Attribute.COLOR);
System.out.println(s);



//System.out.println(attSet.getAttributeCount());


}
catch ( Exception e ) {
e.printStackTrace();
}

}


}

################
Plain Text HTML:
################

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>

<script language="JavaScript" type="text/javascript">
<!--
document._domino_target = "_self";
function _doClick(v, o, t, h) {
var form = document._ContentRetrival;
if (form.onsubmit) {
var retVal = form.onsubmit();
if (typeof retVal == "boolean" && retVal == false)
return false;
}
var target = document._domino_target;
if (o.href != null) {
if (o.target != null)
target = o.target;
} else {
if (t != null)
target = t;
}
form.target = target;
form.__Click.value = v;
if (h != null)
form.action += h;
form.submit();
return false;
}
// -->
</script>
</head>
<body text="#000000" bgcolor="#FFFFFF">

<form method="post"
action="/Test/HET/PerformanceTestDB.nsf/ContentRetrival?OpenForm&amp;Seq=1"
name="_ContentRetrival">
<input type="hidden" name="__Click" value="0"><b>Test Page for Content
Retrival</b><br>
<br>
<br>
<font color="#FF0000">Hello, here is some text without a meaning. This
text should show, how a printed</font><br>
</form>
</body>
</html>


#######################################
Frameset HTML (received by Internet Explorer from the Domino Server)
#######################################
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN">
<html>
<head>

<script language="JavaScript" type="text/javascript">
<!--
self._domino_name = "_Main";
// -->
</script>
</head>

<frameset cols="45%,55%">

<frame
src="/Test/HET/PerformanceTestDB.nsf/ContentDeliveryMeasurement?OpenForm">

<frameset rows="1*,1*">

<frame src="/Test/HET/PerformanceTestDB.nsf/DocsInserted?OpenView">

<frame name="docPreviewFrame"
src="/Test/HET/PerformanceTestDB.nsf/select?OpenForm">
</frameset>
</frameset>
</html>



Regards,
Marcus
 
V

Venkatesh

Think readUTF() expects the length of string at the beginning (The
first 2 bytes are considered to contain the length of the rest of the
string), and that might be causing the problem for u. The best way to
read text is to just loop and read each line, until End of file is
reached.

U can see the source of DataInputStream to get more details

-Venkatesh
 
C

Chris Uppal

VitaminB said:
DataInputStream is = new DataInputStream(uc.getInputStream());
String str =is.readUTF();
Click to expand...

Why are you using a DataInputStream ? And, more specifically, why are you
using readUTF8() ? See the documentation for the method, and you'll see why it
is totally worthless for reading text downloaded from the Net.

-- chris
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Similar Threads

HTML parsen 1
parse HTML 4
NullPointer Exception - getAttribute 1
Using "synchronized" but still getting IllegalMonitorStateException 3
JUnit 4.4 expected exception not working? 6
JUnit not accessing user defined classes of digester 0
Hibernate WrongClassException ,table per class scheme 0
Help with code 0

Members online

No members online now.
Total: 32 (members: 0, guests: 32)
Robots: 450

Forum statistics

Threads
473,768
Messages
2,569,574
Members
45,051
Latest member
CarleyMcCr

Latest Threads

Top