Example usage for java.io BufferedReader read

Introduction

In this page you can find the example usage for java.io BufferedReader read.

Prototype

public int read(char cbuf[], int off, int len) throws IOException 

Source Link

Document

Reads characters into a portion of an array.

Usage

From source file:com.googlecode.jsfFlex.shared.tasks.AbstractFileManipulatorTaskRunner.java

public synchronized String readFileContent(String fileName) {
    StringBuilder fileContent = new StringBuilder();
    BufferedReader bufferRead = null;

    try {//from  w w  w. j av a 2s.  c  o m
        bufferRead = new BufferedReader(new FileReader(new File(fileName)));

        char[] charBuffer = new char[2048];
        int offSet = 0;

        while ((offSet = bufferRead.read(charBuffer, 0, 2048)) > -1) {
            fileContent.append(charBuffer, 0, offSet);
        }

    } catch (FileNotFoundException fileNotFoundExcept) {
        throw new ComponentBuildException("Failure in finding of " + fileName, fileNotFoundExcept);
    } catch (IOException ioExcept) {
        throw new ComponentBuildException("Failure in reading of " + fileName, ioExcept);
    } finally {

        if (bufferRead != null) {
            try {
                bufferRead.close();
            } catch (IOException closerException) {
                _log.debug("Error while closing the writer within readFileContent", closerException);
            }
        }

    }

    return fileContent.toString();
}

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From source file:com.googlecode.jsfFlex.renderkit.html.util.JsfFlexResourceImpl.java

private void readInputWriteOutput(InputStream resourceStream, HttpServletResponse httpResponse) {

    PrintWriter responseWriter = null;

    try {/*from  w w  w .java2 s. co  m*/
        responseWriter = httpResponse.getWriter();

        BufferedReader reader = new BufferedReader(new InputStreamReader(resourceStream));

        char[] charBuffer = new char[2048];
        int offSet = 0;
        while ((offSet = reader.read(charBuffer, 0, 2048)) > -1) {
            responseWriter.write(charBuffer, 0, offSet);
        }

        responseWriter.flush();
    } catch (IOException ioException) {
        _log.debug("IOException while writing the script's content to PrintWriter of HttpServletResponse",
                ioException);
    }

}

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From source file:de.dan_nrw.android.util.net.TextFileHttpResponseHandler.java

@Override
protected String handleResponseInternal(HttpResponse response) throws IOException {
    BufferedReader reader = null;

    try {/*from   w  ww .j  a va 2s  .  com*/
        reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

        StringBuilder stringBuilder = new StringBuilder();

        char[] buffer = new char[1024];
        int charsRead = 0;

        while ((charsRead = reader.read(buffer, 0, buffer.length)) > 0) {
            stringBuilder.append(buffer, 0, charsRead);
        }

        return stringBuilder.toString();
    } finally {
        if (reader != null) {
            reader.close();
        }
    }
}

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From source file:hudson.Util.java

public static String loadFile(File logfile, Charset charset) throws IOException {
    if (!logfile.exists())
        return "";

    StringBuilder str = new StringBuilder((int) logfile.length());

    BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(logfile), charset));
    try {/*from   w w  w  . jav  a2 s  .c om*/
        char[] buf = new char[1024];
        int len;
        while ((len = r.read(buf, 0, buf.length)) > 0)
            str.append(buf, 0, len);
    } finally {
        r.close();
    }

    return str.toString();
}

---

From source file:com.googlecode.jsfFlex.shared.tasks.AbstractFileManipulatorTaskRunner.java

public synchronized String getComponentTemplate(ClassLoader loader, String template) {
    StringBuilder fileContent = new StringBuilder();
    BufferedReader bufferRead = null;

    try {//w  ww. j a va  2s .co m

        bufferRead = new BufferedReader(new InputStreamReader(loader.getResourceAsStream(template)));
        char[] charBuffer = new char[2048];
        int offSet = 0;

        while ((offSet = bufferRead.read(charBuffer, 0, 2048)) > -1) {
            fileContent.append(charBuffer, 0, offSet);
        }

    } catch (FileNotFoundException fileNotFoundExcept) {
        throw new ComponentBuildException(getErrorMessage("getComponentTemplate", template),
                fileNotFoundExcept);
    } catch (IOException ioExcept) {
        throw new ComponentBuildException(getErrorMessage("getComponentTemplate", template), ioExcept);
    } finally {

        if (bufferRead != null) {
            try {
                bufferRead.close();
            } catch (IOException closerException) {
                _log.debug("Error while closing the writer within getComponentTemplate", closerException);
            }
        }

    }

    return fileContent.toString();
}

---

From source file:com.github.nlloyd.hornofmongo.action.MongoScriptAction.java

/**
 * Borrowed from Rhino's Parser class./*from  w  w  w.ja  va  2  s .  com*/
 * 
 * @param reader
 * @return
 * @throws IOException
 */
private String readFully(Reader reader) throws IOException {
    BufferedReader in = new BufferedReader(reader);
    try {
        char[] cbuf = new char[1024];
        StringBuilder sb = new StringBuilder(1024);
        int bytes_read;
        while ((bytes_read = in.read(cbuf, 0, 1024)) != -1) {
            sb.append(cbuf, 0, bytes_read);
        }
        return sb.toString();
    } finally {
        in.close();
    }
}

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From source file:hudson.Util.java

public static String loadFile(File logfile, Charset charset) throws IOException {
    if (!logfile.exists()) {
        return "";
    }//w  w w . j  a v  a  2  s  .  com

    StringBuilder str = new StringBuilder((int) logfile.length());

    BufferedReader r = new BufferedReader(new InputStreamReader(new FileInputStream(logfile), charset));
    char[] buf = new char[1024];
    int len;
    while ((len = r.read(buf, 0, buf.length)) > 0) {
        str.append(buf, 0, len);
    }
    r.close();

    return str.toString();
}

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From source file:MyServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    try {//from w w w  . j a  v  a 2s .c  o  m
        // Get a reader to read the incoming data
        BufferedReader reader = req.getReader();

        // Get a writer to write the data in UTF-8
        res.setContentType("text/html; charset=UTF-8");
        //PrintWriter out = res.getWriter();
        out = new PrintWriter(new OutputStreamWriter(res.getOutputStream(), "UTF8"), true);

        char[] buf = new char[4 * 1024]; // 4Kchar buffer
        int len;
        while ((len = reader.read(buf, 0, buf.length)) != -1) {
            out.write(buf, 0, len);
        }
        out.flush();
    } catch (Exception e) {
        out.println("Problem filtering page to UTF-8");
        getServletContext().log(e, "Problem filtering page to UTF-8");
    }
    out.println("Done");
}

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From source file:net.xisberto.phonetodesktop.network.URLOptions.java

/**
 * Loads a url and search for a HTML title. <br>
 * Based on the code found at/*from   ww  w .j ava 2 s .com*/
 * http://www.gotoquiz.com/web-coding/programming/
 * java-programming/how-to-extract-titles-from-web-pages-in-java/
 * 
 * @param url
 *            the url to load
 * @return the HTML title or {@code null} if it's not a HTML page or if no
 *         title was found
 * @throws IOException
 */
private String getPageTitle(String url) throws IOException, NullPointerException {
    HttpClient client = new DefaultHttpClient();
    HttpUriRequest request = new HttpGet(url);
    HttpResponse response = client.execute(request);

    if (isCancelled) {
        return null;
    }

    // Make sure this URL goes to a HTML page
    String headerValue = "";
    for (Header header : response.getAllHeaders()) {
        Utils.log("header: " + header.getName());
        if (header.getName().equals("Content-Type")) {
            headerValue = header.getValue();
            break;
        }
    }

    Utils.log("value: " + headerValue);
    String contentType = "";
    Charset charset = Charset.forName("ISO-8859-1");
    int sep = headerValue.indexOf(";");
    if (sep != -1) {
        contentType = headerValue.substring(0, sep);
        Matcher matcherCharset = CHARSET_HEADER.matcher(headerValue);
        if (matcherCharset.find()) {
            charset = Charset.forName(matcherCharset.group(1));
        }
    } else {
        contentType = headerValue;
    }

    if (contentType.equals("text/html")) {
        // Now we can search for <title>
        InputStream in = response.getEntity().getContent();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in, charset));
        int n = 0, totalRead = 0;
        char[] buffer = new char[1024];
        StringBuilder content = new StringBuilder();

        while (totalRead < 8192 && (n = reader.read(buffer, 0, buffer.length)) != -1) {
            content.append(buffer);
            totalRead += n;
            Matcher matcher = TITLE_TAG.matcher(content);
            if (matcher.find()) {
                reader.close();
                String result = matcher.group(1).replaceAll("[\\s\\<>]+", " ").trim();
                return result;
            }
            if (isCancelled) {
                reader.close();
                return null;
            }
            Utils.log("Will read some more");
        }
    }
    return null;
}

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From source file:org.opencastproject.deliver.itunesu.HTTPHelper.java

/**
 * Reads the HTTP response from the connection.
 *
 * @throws IOException//from w w  w .  ja v  a 2 s .  c o m
 * @return the response as string
 */
private String readResponse() throws IOException {
    // read the response
    InputStream inputStream = null;
    StringBuffer stringBuffer = new StringBuffer();

    try {
        inputStream = connection.getInputStream();
        BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "UTF-8"));
        char[] buffer = new char[BUFFER_SIZE];
        for (int n = 0; n >= 0;) {
            n = reader.read(buffer, 0, buffer.length);
            if (n > 0) {
                stringBuffer.append(buffer, 0, n);
            }
        }
    } finally {
        IOUtils.closeQuietly(inputStream);
    }

    return stringBuffer.toString();
}

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