Hi All, I was wondering if you had any thoughts to some errors I am getting with Java I/O.
Here is my setup: I have 4 Android phones in an Ad-Hoc WIFI network. Each of these Android phones is running a Jetty Webserver (http://jetty.codehaus.org/jetty/). Jetty has an app specifically for Android, but I believe that is not what I want, so what I did was actually just download the Jetty JAR, and put it in the build-path of my Android project. So.., each of the 4 phones is running a Jetty Webserver. The Webserver is capable of processing HTTP GET and HTTP POST commands. The HTTP GET is used by phones to get files from other phones, and the POST is used to POST XML commands that essentially command a phone to do something. So.., this all seems to be working fine. Now, I'm starting to transfer a lot of files between phones. More specifically in my setup, 1 phone is serving 450 image files that the other 3 phones are trying to get using the HTTP GET commands. Each phone that is requesting files basically has a list of URL's that it does HTTP GET on to get files, and there is no delay (like Thread.sleep) between when a HTTP GET ends and the next one is processed. The reason for stating the point of there being no delay between when the first HTTP GET ends and the next HTTP GET starts is that the phone that is serving the 450 files is getting pegged pretty hard by HTTP GET requests. I've noticed the following JavaI/O errors while doing this: *04-17 22:48:59.183: W/System.err(31530): java.io.IOException: Closed 04-17 22:48:59.183: W/System.err(31530): at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:152) 04-17 22:48:59.183: W/System.err(31530): at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:101) 04-17 22:48:59.187: W/System.err(31530): at java.io.BufferedOutputStream.write(BufferedOutputStream.java:129) 04-17 22:48:59.187: W/System.err(31530): at org.kiran.ms.core.WebserverHandler.processHTTPGet(WebserverHandler.java:125) 04-17 22:48:59.187: W/System.err(31530): at org.kiran.ms.core.WebserverHandler.handle(WebserverHandler.java:86) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.server.Server.handle(Server.java:346) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:442) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:924) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:582) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:51) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:586) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:44) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598) 04-17 22:48:59.187: W/System.err(31530): at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533) 04-17 22:48:59.187: W/System.err(31530): at java.lang.Thread.run(Thread.java:1019)* *04-17 22:49:36.722: W/System.err(31530): java.lang.IllegalStateException: State==HEADER* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.http.HttpGenerator.flushBuffer(HttpGenerator.java:824)* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.http.AbstractGenerator.blockForOutput(AbstractGenerator.java:541) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:159)* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:101)* *04-17 22:49:36.722: W/System.err(31530): at java.io.BufferedOutputStream.write(BufferedOutputStream.java:129)* *04-17 22:49:36.722: W/System.err(31530): at org.kiran.ms.core.WebserverHandler.processHTTPGet(WebserverHandler.java:125) * *04-17 22:49:36.722: W/System.err(31530): at org.kiran.ms.core.WebserverHandler.handle(WebserverHandler.java:86)* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.Server.handle(Server.java:346)* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:442) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:924) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:582)* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218)* *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnection.java:51) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:586) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:44) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598) * *04-17 22:49:36.722: W/System.err(31530): at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533) * *04-17 22:49:36.722: W/System.err(31530): at java.lang.Thread.run(Thread.java:1019)* These errors are popping up occasionally while Jetty is trying to serve a specific file but I don't think the error is file specific (i.e. the same errors pop up with different files at different times), and I'm thinking the errors have something to do with the OS not being able to read these files fast enough? The code I'm using to process execute a HTTP GET is (the relavent portion of the code): BufferedInputStream bis = null; OutputStream outStream = null; try { HttpClient client = new DefaultHttpClient(); HttpGet request = new HttpGet(); request.setURI(new URI(getURL)); HttpResponse response = client.execute(request); bis = new BufferedInputStream(response.getEntity().getContent()); outStream = new FileOutputStream(fullPath); bytesRead = bis.read(buf1, 0, bufLen); while (bytesRead != -1) { outStream.write(buf1, 0, bytesRead); bytesRead = bis.read(buf1, 0, bufLen); } } Thanks in advance, Kiran -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
