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Posted to dev@hc.apache.org by "oliver z (JIRA)" <ji...@apache.org> on 2010/09/30 19:35:32 UTC
[jira] Issue Comment Edited: (HTTPCLIENT-1004)
EofSensorInputStreams available() always returns 0
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12916550#action_12916550 ]
oliver z edited comment on HTTPCLIENT-1004 at 9/30/10 1:35 PM:
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i am using HtmlUnit 2.8. I replaced the old HttpClient/HttpCore/HttpMime jars with the new one (4.1alpha2 and 4.1-beta2) and recompiled it. So i think HtmlUnit is using the new one, not the 4.0 version.
I tried to cast the InputStream to ContentLengthInputStream but i still get
Exception in thread "Thread-28" java.lang.ClassCastException: org.apache.http.conn.EofSensorInputStream cannot be cast to org.apache.http.impl.io.ContentLengthInputStream
at myPlay.player.PlayThread$SongSlider.run(PlayThread.java:56)
I will take a closer look on this on the weekend.
edit: i just saw that htmlunit uses DefaultHttpClient, could this be somehow the problem?
was (Author: olze84):
i am using HtmlUnit 2.8. I replaced the old HttpClient/HttpCore/HttpMime jars with the new one (4.1alpha2 and 4.1-beta2) and recompiled it. So i think HtmlUnit is using the new one, not the 4.0 version.
I tried to cast the InputStream to ContentLengthInputStream but i still get
Exception in thread "Thread-28" java.lang.ClassCastException: org.apache.http.conn.EofSensorInputStream cannot be cast to org.apache.http.impl.io.ContentLengthInputStream
at myPlay.player.PlayThread$SongSlider.run(PlayThread.java:56)
I will take a closer look on this on the weekend.
> EofSensorInputStreams available() always returns 0
> --------------------------------------------------
>
> Key: HTTPCLIENT-1004
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1004
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Affects Versions: 4.1 Alpha2
> Environment: win 7 x64, netbeans 6.9.1, jdk6_21
> Reporter: oliver z
>
> i just wrote a little mp3 audio player which retrieves a stream and plays it.
> to make sure the user does not play further than the song has been stored into ram, i thought i just use the available() method from the class EofSensorInputStream.
> But this method always returns 0 (normal http connection), casting to a ByteArrayInputStream would be nice, but thats not working... so i took a look at the implementation of available():
> http://www.docjar.com/html/api/org/apache/http/conn/EofSensorInputStream.java.html
> 165 @Override
> 166 public int available() throws IOException {
> 167 int a = 0; // not -1
> 168
> 169 if (isReadAllowed()) {
> 170 try {
> 171 a = wrappedStream.available();
> 172 // no checkEOF() here, available() can't trigger EOF
> 173 } catch (IOException ex) {
> 174 checkAbort();
> 175 throw ex;
> 176 }
> 177 }
> 178
> 179 return a;
> 180 }
> wrappedStream is an InputStream, and InputStream says to available():
> The available method for class InputStream always returns 0.
> This method should be overridden by subclasses.
> Im not sure if this is a bug or a feature request
> Is there any other way how i can check how many bytes has been transfered into ram?
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