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package org.apache.http.conn;

import java.io.IOException;
import java.io.InputStream;

A watcher for EofSensorInputStream. Each stream will notify its watcher at most once.
Since:4.0
/** * A watcher for {@link EofSensorInputStream}. Each stream will notify its * watcher at most once. * * @since 4.0 */
public interface EofSensorWatcher {
Indicates that EOF is detected.
Params:
  • wrapped – the underlying stream which has reached EOF
Throws:
  • IOException – in case of an IO problem, for example if the watcher itself closes the underlying stream. The caller will leave the wrapped stream alone, as if false was returned.
Returns: true if wrapped should be closed, false if it should be left alone
/** * Indicates that EOF is detected. * * @param wrapped the underlying stream which has reached EOF * * @return {@code true} if {@code wrapped} should be closed, * {@code false} if it should be left alone * * @throws IOException * in case of an IO problem, for example if the watcher itself * closes the underlying stream. The caller will leave the * wrapped stream alone, as if {@code false} was returned. */
boolean eofDetected(InputStream wrapped) throws IOException;
Indicates that the stream is closed. This method will be called only if EOF was not detected before closing. Otherwise, eofDetected is called.
Params:
  • wrapped – the underlying stream which has not reached EOF
Throws:
  • IOException – in case of an IO problem, for example if the watcher itself closes the underlying stream. The caller will leave the wrapped stream alone, as if false was returned.
Returns: true if wrapped should be closed, false if it should be left alone
/** * Indicates that the {@link EofSensorInputStream stream} is closed. * This method will be called only if EOF was <i>not</i> detected * before closing. Otherwise, {@link #eofDetected eofDetected} is called. * * @param wrapped the underlying stream which has not reached EOF * * @return {@code true} if {@code wrapped} should be closed, * {@code false} if it should be left alone * * @throws IOException * in case of an IO problem, for example if the watcher itself * closes the underlying stream. The caller will leave the * wrapped stream alone, as if {@code false} was returned. */
boolean streamClosed(InputStream wrapped) throws IOException;
Indicates that the stream is aborted. This method will be called only if EOF was not detected before aborting. Otherwise, eofDetected is called.

This method will also be invoked when an input operation causes an IOException to be thrown to make sure the input stream gets shut down.

Params:
  • wrapped – the underlying stream which has not reached EOF
Throws:
  • IOException – in case of an IO problem, for example if the watcher itself closes the underlying stream. The caller will leave the wrapped stream alone, as if false was returned.
Returns: true if wrapped should be closed, false if it should be left alone
/** * Indicates that the {@link EofSensorInputStream stream} is aborted. * This method will be called only if EOF was <i>not</i> detected * before aborting. Otherwise, {@link #eofDetected eofDetected} is called. * <p> * This method will also be invoked when an input operation causes an * IOException to be thrown to make sure the input stream gets shut down. * </p> * * @param wrapped the underlying stream which has not reached EOF * * @return {@code true} if {@code wrapped} should be closed, * {@code false} if it should be left alone * * @throws IOException * in case of an IO problem, for example if the watcher itself * closes the underlying stream. The caller will leave the * wrapped stream alone, as if {@code false} was returned. */
boolean streamAbort(InputStream wrapped) throws IOException; }