426750 isReady() returns true at EOF
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ba318ccbd3
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7725056234
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@ -313,7 +313,9 @@ public abstract class HttpInput<T> extends ServletInputStream implements Runnabl
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boolean finished;
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synchronized (lock())
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{
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if (_listener == null)
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if (_contentState.isEOF())
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return true;
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if (_listener == null )
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return true;
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if (available() > 0)
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return true;
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@ -63,13 +63,15 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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private volatile Throwable _onError;
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/*
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ACTION OPEN ASYNC READY PENDING UNREADY
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-------------------------------------------------------------------------------
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setWriteListener() READY->owp ise ise ise ise
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write() OPEN ise PENDING wpe wpe
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flush() OPEN ise PENDING wpe wpe
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isReady() OPEN:true READY:true READY:true UNREADY:false UNREADY:false
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write completed - - - ASYNC READY->owp
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ACTION OPEN ASYNC READY PENDING UNREADY CLOSED
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-----------------------------------------------------------------------------------------------------
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setWriteListener() READY->owp ise ise ise ise ise
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write() OPEN ise PENDING wpe wpe eof
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flush() OPEN ise PENDING wpe wpe eof
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close() CLOSED CLOSED CLOSED CLOSED wpe CLOSED
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isReady() OPEN:true READY:true READY:true UNREADY:false UNREADY:false CLOSED:true
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write completed - - - ASYNC READY->owp -
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*/
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enum OutputState { OPEN, ASYNC, READY, PENDING, UNREADY, CLOSED }
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private final AtomicReference<OutputState> _state=new AtomicReference<>(OutputState.OPEN);
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@ -131,9 +133,18 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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@Override
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public void close()
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{
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OutputState state=_state.get();
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while(state!=OutputState.CLOSED)
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loop: while(true)
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{
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OutputState state=_state.get();
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switch (state)
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{
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case CLOSED:
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break loop;
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case UNREADY:
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throw new WritePendingException(); // TODO ?
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default:
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if (_state.compareAndSet(state,OutputState.CLOSED))
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{
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try
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@ -148,16 +159,25 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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releaseBuffer();
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return;
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}
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state=_state.get();
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}
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}
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}
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/* Called to indicated that the output is already closed and the state needs to be updated to match */
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void closed()
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{
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OutputState state=_state.get();
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while(state!=OutputState.CLOSED)
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loop: while(true)
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{
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OutputState state=_state.get();
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switch (state)
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{
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case CLOSED:
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break loop;
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case UNREADY:
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throw new WritePendingException(); // TODO ?
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default:
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if (_state.compareAndSet(state,OutputState.CLOSED))
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{
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try
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@ -172,7 +192,7 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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releaseBuffer();
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return;
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}
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state=_state.get();
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}
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}
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}
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@ -667,8 +687,9 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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return false;
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case UNREADY:
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return false;
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case CLOSED:
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return false;
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return true;
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}
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}
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}
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@ -683,6 +704,7 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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_writeListener.onError(new IOException(th));
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close();
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}
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switch(_state.get())
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{
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case READY:
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@ -700,6 +722,7 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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case CLOSED:
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try
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{
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new Throwable().printStackTrace();
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// even though a write is not possible, because a close has
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// occurred, we need to call onWritePossible to tell async
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// producer that the last write completed.
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@ -716,6 +739,11 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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}
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}
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@Override
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public String toString()
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{
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return String.format("%s@%x{%s}",this.getClass().getSimpleName(),hashCode(),_state.get());
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}
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private abstract class AsyncICB extends IteratingCallback
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{
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@ -741,7 +769,6 @@ public class HttpOutput extends ServletOutputStream implements Runnable
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break;
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case CLOSED:
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_channel.getState().onWritePossible();
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break;
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default:
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@ -32,10 +32,13 @@ import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicInteger;
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import javax.servlet.AsyncContext;
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import javax.servlet.AsyncEvent;
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import javax.servlet.AsyncListener;
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import javax.servlet.ReadListener;
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import javax.servlet.ServletException;
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import javax.servlet.ServletInputStream;
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import javax.servlet.ServletOutputStream;
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import javax.servlet.ServletResponse;
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import javax.servlet.WriteListener;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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@ -55,7 +58,9 @@ import org.junit.Test;
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// TODO need these on SPDY as well!
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public class AsyncServletIOTest
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{
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protected AsyncIOServlet _servlet=new AsyncIOServlet();
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protected AsyncIOServlet _servlet0=new AsyncIOServlet();
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protected AsyncIOServlet2 _servlet2=new AsyncIOServlet2();
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protected int _port;
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protected Server _server = new Server();
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@ -74,9 +79,16 @@ public class AsyncServletIOTest
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context.setContextPath("/ctx");
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_server.setHandler(context);
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_servletHandler=context.getServletHandler();
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ServletHolder holder=new ServletHolder(_servlet);
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ServletHolder holder=new ServletHolder(_servlet0);
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holder.setAsyncSupported(true);
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_servletHandler.addServletWithMapping(holder,"/path/*");
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ServletHolder holder2=new ServletHolder(_servlet2);
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holder.setAsyncSupported(true);
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_servletHandler.addServletWithMapping(holder2,"/path2/*");
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_server.start();
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_port=_connector.getLocalPort();
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@ -147,6 +159,56 @@ public class AsyncServletIOTest
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}
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@Test
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public void testAsync2() throws Exception
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{
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StringBuilder request = new StringBuilder(512);
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request.append("GET /ctx/path2/info HTTP/1.1\r\n")
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.append("Host: localhost\r\n")
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.append("Connection: close\r\n")
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.append("\r\n");
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int port=_port;
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List<String> list = new ArrayList<>();
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try (Socket socket = new Socket("localhost",port);)
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{
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socket.setSoTimeout(1000000);
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OutputStream out = socket.getOutputStream();
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out.write(request.toString().getBytes("ISO-8859-1"));
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BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()),102400);
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// response line
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String line = in.readLine();
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// System.err.println("resp: "+line);
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Assert.assertThat(line,Matchers.startsWith("HTTP/1.1 200 OK"));
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// Skip headers
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while (line!=null)
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{
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line = in.readLine();
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// System.err.println("line: "+line);
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if (line.length()==0)
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break;
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}
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// Get body slowly
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while (true)
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{
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line = in.readLine();
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// System.err.println("body: "+line);
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if (line==null)
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break;
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list.add(line);
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}
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}
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Assert.assertEquals(list.get(0),"data");
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Assert.assertEquals(_servlet2.completed.get(),1);
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}
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protected void assertContains(String content,String response)
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{
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Assert.assertThat(response,Matchers.containsString(content));
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@ -298,7 +360,7 @@ public class AsyncServletIOTest
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throw new IllegalStateException();
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// System.err.println("ODA");
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while (in.isReady())
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while (in.isReady() && !in.isFinished())
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{
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_oda.incrementAndGet();
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int len=in.read(_buf);
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@ -374,4 +436,85 @@ public class AsyncServletIOTest
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});
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}
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}
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public class AsyncIOServlet2 extends HttpServlet
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{
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public AtomicInteger completed = new AtomicInteger(0);
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@Override
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public void doGet(final HttpServletRequest request, final HttpServletResponse response) throws IOException
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{
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new SampleAsycListener(request,response);
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}
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class SampleAsycListener implements WriteListener, AsyncListener
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{
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final ServletResponse response;
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final ServletOutputStream servletOutputStream;
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final AsyncContext asyncContext;
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SampleAsycListener(HttpServletRequest request,HttpServletResponse response) throws IOException
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{
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asyncContext = request.startAsync();
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asyncContext.setTimeout(10000L);
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asyncContext.addListener(this);
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servletOutputStream = response.getOutputStream();
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servletOutputStream.setWriteListener(this);
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this.response=response;
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}
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volatile boolean written=false;
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@Override
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public void onWritePossible() throws IOException
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{
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if (!written)
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{
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written=true;
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response.setContentLength(5);
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servletOutputStream.write("data\n".getBytes());
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}
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if (servletOutputStream.isReady())
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{
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asyncContext.complete();
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}
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}
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@Override
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public void onError(final Throwable t)
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{
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t.printStackTrace();
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asyncContext.complete();
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}
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@Override
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public void onComplete(final AsyncEvent event) throws IOException
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{
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completed.incrementAndGet();
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}
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@Override
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public void onTimeout(final AsyncEvent event) throws IOException
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{
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asyncContext.complete();
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}
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@Override
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public void onError(final AsyncEvent event) throws IOException
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{
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asyncContext.complete();
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}
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@Override
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public void onStartAsync(AsyncEvent event) throws IOException
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{
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}
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}
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}
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}
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