/** Returns a piped Reader giving the text content extracted by the outPutContent method. */
public Reader getReader(String path, String encoding) {
PipedReader pipeIn = null;
PipedWriter pipeOut = null;
try {
pipeIn = new PipedReader();
pipeOut = new PipedWriter(pipeIn);
new ParserThread(pipeOut, path, encoding).start();
} catch (IOException e) {
SilverTrace.error(
"indexEngine", "PipedParser", "indexEngine.MSG_PIPE_CREATION_FAILED", path, e);
try {
if (pipeIn != null) {
pipeIn.close();
}
if (pipeOut != null) {
pipeOut.close();
}
} catch (IOException ignored) {
}
pipeIn = null;
}
return pipeIn;
}
/** @tests java.io.PipedReader#ready() */
public void test_ready() throws Exception {
char[] c = null;
preader = new PipedReader();
t = new Thread(new PWriter(preader), "");
t.start();
Thread.sleep(500); // Allow writer to start
assertTrue("Reader should be ready", preader.ready());
c = new char[11];
for (int i = 0; i < c.length; i++) c[i] = (char) preader.read();
assertFalse("Reader should not be ready after reading all chars", preader.ready());
}
/** @tests java.io.PipedReader#close() */
public void test_close() throws Exception {
char[] c = null;
preader = new PipedReader();
t = new Thread(new PWriter(preader), "");
t.start();
Thread.sleep(500); // Allow writer to start
c = new char[11];
preader.read(c, 0, 11);
preader.close();
assertEquals("Read incorrect chars", "Hello World", new String(c));
}
/** @tests java.io.PipedReader#read(char[], int, int) */
public void test_read$CII_4() throws IOException {
PipedWriter pw = new PipedWriter();
PipedReader obj = null;
try {
obj = new PipedReader(pw);
obj.read(new char[0], (int) -1, (int) -1);
fail("IndexOutOfBoundsException expected");
} catch (ArrayIndexOutOfBoundsException t) {
fail("IndexOutOfBoundsException expected");
} catch (IndexOutOfBoundsException t) {
// Expected
}
}
/** @tests java.io.PipedReader#read(char[], int, int) */
public void test_read$CII_2() throws IOException {
// Regression for HARMONY-387
PipedWriter pw = new PipedWriter();
PipedReader obj = null;
try {
obj = new PipedReader(pw);
obj.read(new char[0], (int) 0, (int) -1);
fail("IndexOutOfBoundsException expected");
} catch (IndexOutOfBoundsException t) {
assertEquals(
"IndexOutOfBoundsException rather than a subclass expected",
IndexOutOfBoundsException.class,
t.getClass());
}
}
private void help() throws IOException {
String[] help =
new String[] {
help_fw_page, help_bw_page, help_fw_dline, help_bw_dline, help_fw_sline, help_bw_sline,
help_go_start, help_go_end, help_fw_search1, help_fw_search2, help_bw_search1,
help_bw_search2,
help_help, help_quit
};
// Remember the 'current' buffer so that we can repaint it
// when we are done.
ScreenBuffer prevBuffer = this.currentBuffer;
// Prepare and paint the help screen
ScreenBuffer buffer = new ScreenBuffer(true);
for (int i = 0; i < help.length; i++) {
prepareLine(help[i], i, buffer);
}
buffer.adjust(0, 0);
buffer.output();
prompt(str_any_key);
// Wait till the user is done, then repaint the previous screen.
pr.read();
prompt();
prevBuffer.output();
}
/** @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
}
}
@Override
public void run() {
BufferedReader bufferedReader = new BufferedReader(reader);
while (true) {
try {
System.out.println(reader.read());
} catch (IOException e) {
e.printStackTrace();
}
}
}
/**
* Tear down the console and pipe.
*
* @throws IOException
*/
private void tearDown() throws IOException {
if (manager != null && console != null) {
manager.unregisterConsole(console);
}
if (pw != null) {
pw.close();
}
if (pr != null) {
pr.close();
}
}
/**
* Read a line up to the next newline and return it as a String. The line is echoed at the prompt
* location.
*
* @param ch a preread character.
* @return
* @throws IOException
*/
private String readLine(int ch) throws IOException {
StringBuffer sb = new StringBuffer();
String line;
do {
sb.append((char) ch);
line = sb.toString();
prompt(line);
ch = pr.read();
} while (ch != -1 && ch != '\n');
return line;
}
/** @tests java.io.PipedReader#read() */
public void test_read() throws Exception {
char[] c = null;
preader = new PipedReader();
t = new Thread(new PWriter(preader), "");
t.start();
Thread.sleep(500); // Allow writer to start
c = new char[11];
for (int i = 0; i < c.length; i++) {
c[i] = (char) preader.read();
}
assertEquals("Read incorrect chars", "Hello World", new String(c));
}
/** @tests java.io.PipedReader#read(char[], int, int) */
public void test_read$CII() throws Exception {
char[] c = null;
preader = new PipedReader();
t = new Thread(new PWriter(preader), "");
t.start();
Thread.sleep(500); // Allow writer to start
c = new char[11];
int n = 0;
int x = n;
while (x < 11) {
n = preader.read(c, x, 11 - x);
x = x + n;
}
assertEquals("Read incorrect chars", "Hello World", new String(c));
try {
preader.close();
preader.read(c, 8, 7);
fail("Failed to throw exception reading from closed 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);
}
/**
* Closes the reader of this pipe. After calling this method no data can be read from the pipe.
*
* @exception IOException thrown if we cannot close the reader
*/
public void closeReader() throws IOException {
reader_.close();
}
public void listMethods(
Context context,
String PID,
Date asOfDateTime,
boolean xml,
HttpServletRequest request,
HttpServletResponse response)
throws ServerException {
OutputStreamWriter out = null;
Date versDateTime = asOfDateTime;
ObjectMethodsDef[] methodDefs = null;
PipedWriter pw = null;
PipedReader pr = null;
try {
pw = new PipedWriter();
pr = new PipedReader(pw);
methodDefs = m_access.listMethods(context, PID, asOfDateTime);
// Object Profile found.
// Serialize the ObjectProfile object into XML
new ObjectMethodsDefSerializerThread(context, PID, methodDefs, versDateTime, pw).start();
if (xml) {
// Return results as raw XML
response.setContentType(CONTENT_TYPE_XML);
// Insures stream read from PipedReader correctly translates
// utf-8
// encoded characters to OutputStreamWriter.
out = new OutputStreamWriter(response.getOutputStream(), "UTF-8");
int bufSize = 4096;
char[] buf = new char[bufSize];
int len = 0;
while ((len = pr.read(buf, 0, bufSize)) != -1) {
out.write(buf, 0, len);
}
out.flush();
} else {
// Transform results into an html table
response.setContentType(CONTENT_TYPE_HTML);
out = new OutputStreamWriter(response.getOutputStream(), "UTF-8");
File xslFile = new File(m_server.getHomeDir(), "access/listMethods.xslt");
Templates template = XmlTransformUtility.getTemplates(xslFile);
Transformer transformer = template.newTransformer();
transformer.setParameter("fedora", context.getEnvironmentValue(FEDORA_APP_CONTEXT_NAME));
transformer.transform(new StreamSource(pr), new StreamResult(out));
}
out.flush();
} catch (ServerException e) {
throw e;
} catch (Throwable th) {
String message = "Error listing methods";
logger.error(message, th);
throw new GeneralException(message, th);
} finally {
try {
if (pr != null) {
pr.close();
}
if (out != null) {
out.close();
}
} catch (Throwable th) {
String message =
"[ListMethodsServlet] An error has occured. "
+ " The error was a \" "
+ th.getClass().getName()
+ " \". Reason: "
+ th.getMessage();
throw new StreamIOException(message);
}
}
}
/** @tests java.io.PipedReader#read(char[], int, int) */
public void test_read_$CII_IOException() throws IOException {
PipedWriter pw = new PipedWriter();
PipedReader pr = new PipedReader(pw);
char[] buf = null;
pr.close();
try {
pr.read(buf, 0, 10);
fail("Should throws IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pw = null;
pr = null;
}
pr = new PipedReader();
buf = null;
pr.close();
try {
pr.read(buf, 0, 10);
fail("Should throws IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
buf = new char[10];
pr.close();
try {
pr.read(buf, -1, 0);
fail("Should throws IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
buf = new char[10];
pr.close();
try {
pr.read(buf, 0, -1);
fail("Should throws IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
buf = new char[10];
pr.close();
try {
pr.read(buf, 1, 10);
fail("Should throws IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
pr.close();
try {
pr.read(new char[0], -1, -1);
fail("should throw IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
pr.close();
try {
pr.read(null, 0, 1);
fail("should throw IOException"); // $NON-NLS-1$
} catch (IOException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
try {
pr.read(null, -1, 1);
fail("should throw IndexOutOfBoundsException"); // $NON-NLS-1$
} catch (IndexOutOfBoundsException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
try {
pr.read(null, 0, -1);
fail("should throw NullPointerException"); // $NON-NLS-1$
} catch (NullPointerException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
try {
pr.read(new char[10], 11, 0);
fail("should throw IndexOutOfBoundsException"); // $NON-NLS-1$
} catch (IndexOutOfBoundsException e) {
// expected
} finally {
pw = null;
pr = null;
}
pw = new PipedWriter();
pr = new PipedReader(pw);
try {
pr.read(null, 1, 0);
fail("should throw NullPointerException"); // $NON-NLS-1$
} catch (NullPointerException e) {
// expected
} finally {
pw = null;
pr = null;
}
}
/**
* This method reads a character from the pipe.
*
* @exception IOException thrown if we cannot read from the pipe
* @return char next chracter in the stream
*/
public int read() throws IOException {
return reader_.read();
}
/**
* Do the paging, reading commands from our private console input pipe to figure out what to do
* next.
*
* @param r the source of data to be paged.
* @throws IOException
*/
private void pager() throws IOException {
// Output first page.
console.clear();
bottomLineNo = -1;
boolean exit = false;
nextPage();
// Process commands until we reach the EOF on the data source or
// the command pipe.
while (!exit) {
prompt();
int ch = pr.read();
erasePrompt();
switch (ch) {
case -1:
exit = true;
break;
case ' ':
case 'f':
if (lineStore.isLastLineNo(bottomLineNo)) {
exit = true;
} else {
nextPage();
}
break;
case 'b':
prevPage();
break;
case 'k':
case 'y':
prevLine();
break;
case '\n':
if (lineStore.isLastLineNo(bottomLineNo)) {
exit = true;
} else {
nextLine();
}
break;
case 'u':
prevScreenLine();
break;
case 'd':
nextScreenLine();
break;
case '<':
gotoPage(0);
break;
case '>':
gotoLastPage();
break;
case '/':
searchForwards();
break;
case '?':
searchBackwards();
break;
case '\004': // ^D
case 'q':
exit = true;
break;
case 'h':
help();
default:
// ignore
}
}
}
