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package org.glassfish.grizzly.nio.transport;
import java.io.IOException;
import org.glassfish.grizzly.Buffer;
import org.glassfish.grizzly.CompletionHandler;
import org.glassfish.grizzly.Connection;
import org.glassfish.grizzly.Interceptor;
import org.glassfish.grizzly.ReadResult;
import org.glassfish.grizzly.Reader;
import org.glassfish.grizzly.Transport;
import org.glassfish.grizzly.streams.AbstractStreamReader;
import org.glassfish.grizzly.streams.BufferedInput;
/**
*
* @author Alexey Stashok
*/
@SuppressWarnings("unchecked")
public final class DefaultStreamReader extends AbstractStreamReader {
public DefaultStreamReader(Connection connection) {
super(connection, new Input());
((Input) input).parentStreamReader = this;
}
public Input getSource() {
return (Input) input;
}
public static final class Input extends BufferedInput {
private DefaultStreamReader parentStreamReader;
private InputInterceptor interceptor;
@Override
protected void onOpenInputSource() throws IOException {
final Connection connection = parentStreamReader.getConnection();
final Transport transport = connection.getTransport();
final Reader reader = transport.getReader(connection);
interceptor = new InputInterceptor();
reader.read(connection, null, null, interceptor);
}
@Override
protected void onCloseInputSource() throws IOException {
interceptor.isDone = true;
interceptor = null;
}
@Override
protected void notifyCompleted(final CompletionHandler<Integer> completionHandler) {
if (completionHandler != null) {
completionHandler.completed(compositeBuffer.remaining());
}
}
@Override
protected void notifyFailure(final CompletionHandler<Integer> completionHandler,
final Throwable failure) {
if (completionHandler != null) {
completionHandler.failed(failure);
}
}
private class InputInterceptor implements
Interceptor<ReadResult<Buffer, ?>> {
boolean isDone = false;
@Override
public int intercept(int event, Object context,
ReadResult<Buffer, ?> result) {
if (event == Reader.READ_EVENT) {
final Buffer buffer = result.getMessage();
result.setMessage(null);
if (buffer == null) {
return Interceptor.INCOMPLETED;
}
buffer.trim();
append(buffer);
if (isDone) {
return Interceptor.COMPLETED;
}
return Interceptor.INCOMPLETED
| Interceptor.RESET;
}
return Interceptor.DEFAULT;
}
}
}
}