/** @tests java.io.PipedReader#connect(java.io.PipedWriter) */
public void test_connectLjava_io_PipedWriter() throws Exception {
char[] c = null;
preader = new PipedReader();
t = new Thread(pwriter = new PWriter(), "");
preader.connect(pwriter.pw);
t.start();
Thread.sleep(500); // Allow writer to start
c = new char[11];
preader.read(c, 0, 11);
assertEquals("Read incorrect chars", "Hello World", new String(c));
try {
preader.connect(pwriter.pw);
fail("Failed to throw exception connecting to pre-connected reader");
} catch (IOException e) {
// Expected
}
}
/** Set up the pager's console and command pipe. */
private void setup() throws NameNotFoundException, IOException {
ShellManager sm = InitialNaming.lookup(ShellManager.NAME);
manager = (TextScreenConsoleManager) sm.getCurrentShell().getConsole().getManager();
console =
manager.createConsole(
"page",
(ConsoleManager.CreateOptions.TEXT
| ConsoleManager.CreateOptions.STACKED
| ConsoleManager.CreateOptions.NO_LINE_EDITTING
| ConsoleManager.CreateOptions.NO_SYSTEM_OUT_ERR));
manager.focus(console);
pageHeight = console.getDeviceHeight() - 1;
pageWidth = console.getDeviceWidth();
pageSize = pageHeight * pageWidth;
tabSize = console.getTabSize();
pw = new PipedWriter();
pr = new PipedReader();
pr.connect(pw);
console.addKeyboardListener(this);
}
/**
* Constructs a new {@code PipedReader} connected to the {@link PipedWriter} {@code out}. Any data
* written to the writer can be read from the this reader.
*
* @param out the {@code PipedWriter} to connect to.
* @throws IOException if {@code out} is already connected.
*/
public PipedReader(PipedWriter out) throws IOException {
this();
connect(out);
}
/**
* Constructs a new PipedReader connected to the PipedWriter <code>out</code> and the buffer size
* is specified. Any data written to the writer can be read from the this reader.
*
* @param out the PipedWriter to connect to.
* @param pipeSize the size of the buffer.
* @throws IOException if IO errors occur
* @throws IllegalArgumentException if pipeSize is less than or equal to zero.
* @since 1.6
*/
public PipedReader(PipedWriter out, int pipeSize) throws IOException {
this(pipeSize);
connect(out);
}