Example usage for java.io InputStreamReader read

Introduction

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

Prototype

public int read(char cbuf[], int offset, int length) throws IOException 

Source Link

Document

Reads characters into a portion of an array.

Usage

From source file:com.wanikani.wklib.Connection.java

private static String readStream(Meter meter, InputStream is) throws IOException {
    InputStreamReader ir;
    StringBuffer sb;/*  w ww  . j  a va 2 s  .  co m*/
    char buf[];
    int rd;

    buf = new char[1024];
    sb = new StringBuffer();
    ir = new InputStreamReader(is, "UTF-8");
    while (true) {
        rd = ir.read(buf, 0, buf.length);
        if (rd < 0)
            break;
        meter.count(rd);
        sb.append(buf, 0, rd);
    }

    meter.sync();
    return sb.toString();
}

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From source file:org.ourbeehive.mbp.io.FileHandler.java

/**
 * Read file with the specified encoding.
 * /*w  ww  .java  2  s  .  c  o m*/
 * @param fileName
 *            java.lang.String
 * @param enc
 *            java.lang.String
 * @return java.lang.String
 * @throws IOException
 */
public static String readTextFile(String fileName, String enc) throws IOException {

    InputStreamReader in = null;
    StringBuffer all = new StringBuffer();
    int bufferLength = 512;
    int readLength = 0;
    char[] ch = new char[bufferLength];

    try {
        in = new InputStreamReader(new FileInputStream(fileName), enc);

        readLength = in.read(ch, 0, bufferLength);
        while (readLength != -1) {
            all.append(ch, 0, readLength);
            readLength = in.read(ch, 0, bufferLength);
        }
    } finally {
        // try {
        if (in != null) {
            in.close();
        }
        // } catch (Exception ex) {
        // throw new ReadFileException(ex);
        // }
    }

    return all.toString();
}

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From source file:com.sun.faces.generate.RenderKitSpecificationGenerator.java

public static void appendResourceToStringBuffer(String resourceName, StringBuffer sb) throws Exception {
    InputStreamReader isr = null;
    URL url = null;/*from  w ww  . j  a va  2  s  . c  om*/
    URLConnection conn = null;
    char[] chars = new char[1024];
    int len = 0;

    url = getCurrentLoader(sb).getResource(resourceName);
    conn = url.openConnection();
    conn.setUseCaches(false);
    isr = new InputStreamReader(conn.getInputStream());
    while (-1 != (len = isr.read(chars, 0, 1024))) {
        sb.append(chars, 0, len);
    }
    isr.close();
}

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From source file:net.grinder.util.LogCompressUtils.java

/**
 * Compress multiple Files with the given encoding.
 *
 * @param logFiles     files to be compressed
 * @param fromEncoding log file encoding
 * @param toEncoding   compressed log file encoding
 * @return compressed file byte array/*w w w. j  ava2 s .co m*/
 */
public static byte[] compress(File[] logFiles, Charset fromEncoding, Charset toEncoding) {
    FileInputStream fis = null;
    InputStreamReader isr = null;
    ByteArrayOutputStream out = null;
    ZipOutputStream zos = null;
    OutputStreamWriter osw = null;
    if (toEncoding == null) {
        toEncoding = Charset.defaultCharset();
    }
    if (fromEncoding == null) {
        fromEncoding = Charset.defaultCharset();
    }
    try {
        out = new ByteArrayOutputStream();
        zos = new ZipOutputStream(out);
        osw = new OutputStreamWriter(zos, toEncoding);
        for (File each : logFiles) {
            try {
                fis = new FileInputStream(each);
                isr = new InputStreamReader(fis, fromEncoding);
                ZipEntry zipEntry = new ZipEntry(each.getName());
                zipEntry.setTime(each.lastModified());
                zos.putNextEntry(zipEntry);
                char[] buffer = new char[COMPRESS_BUFFER_SIZE];
                int count;
                while ((count = isr.read(buffer, 0, COMPRESS_BUFFER_SIZE)) != -1) {
                    osw.write(buffer, 0, count);
                }
                osw.flush();
                zos.flush();
                zos.closeEntry();
            } catch (IOException e) {
                LOGGER.error("Error occurs while compressing {} : {}", each.getAbsolutePath(), e.getMessage());
                LOGGER.debug("Details ", e);
            } finally {
                IOUtils.closeQuietly(isr);
                IOUtils.closeQuietly(fis);
            }
        }
        zos.finish();
        zos.flush();
        return out.toByteArray();
    } catch (IOException e) {
        LOGGER.error("Error occurs while compressing log : {} ", e.getMessage());
        LOGGER.debug("Details : ", e);
        return null;
    } finally {
        IOUtils.closeQuietly(zos);
        IOUtils.closeQuietly(out);
        IOUtils.closeQuietly(osw);
    }
}

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From source file:info.staticfree.android.units.Units.java

/**
 * Read an InputStream into a String until it hits EOF.
 *
 * @param in//from w w  w  .  j  a v  a 2s .co  m
 * @return the complete contents of the InputStream
 * @throws IOException
 */
static public String inputStreamToString(InputStream in) throws IOException {
    final int bufsize = 8196;
    final char[] cbuf = new char[bufsize];

    final StringBuffer buf = new StringBuffer(bufsize);

    final InputStreamReader in_reader = new InputStreamReader(in);

    for (int readBytes = in_reader.read(cbuf, 0, bufsize); readBytes > 0; readBytes = in_reader.read(cbuf, 0,
            bufsize)) {
        buf.append(cbuf, 0, readBytes);
    }

    return buf.toString();
}

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From source file:TextBoxMIDlet.java

protected void startApp() {
    String str = null;//from   ww  w.  j  av a  2  s  . co  m
    try {
        InputStream is = getClass().getResourceAsStream("resources/text.txt");
        InputStreamReader r = new InputStreamReader(is);
        char[] buffer = new char[32];
        StringBuffer sb = new StringBuffer();
        int count;
        while ((count = r.read(buffer, 0, buffer.length)) > -1) {
            sb.append(buffer, 0, count);
        }
        str = sb.toString();
    } catch (IOException ex) {
        str = "Failed to load text";
    }
    textBox = new TextBox("TextBox Example", str, MAX_TEXT_SIZE, TextField.ANY);

    Ticker ticker = new Ticker("This is a ticker...");
    textBox.setTicker(ticker);
    display = Display.getDisplay(this);
    display.setCurrent(textBox);

}

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From source file:TextBoxMIDlet.java

protected void startApp() {
    String str = null;//  ww  w. j av a2  s.c o m
    try {
        InputStream is = getClass().getResourceAsStream("resources/text.txt");
        InputStreamReader r = new InputStreamReader(is);
        char[] buffer = new char[32];
        StringBuffer sb = new StringBuffer();
        int count;
        while ((count = r.read(buffer, 0, buffer.length)) > -1) {
            sb.append(buffer, 0, count);
        }
        str = sb.toString();
    } catch (IOException ex) {
        str = "Failed to load text";
    }
    textBox = new TextBox("TextBox Example", str, MAX_TEXT_SIZE, TextField.ANY);
    Ticker ticker = new Ticker("This is a ticker...");
    textBox.setTicker(ticker);
    textBox.addCommand(OK_COMMAND);
    textBox.addCommand(EXIT_COMMAND);
    textBox.addCommand(CLEAR_COMMAND);
    textBox.addCommand(REVERSE_COMMAND);
    textBox.setCommandListener(this);
    display = Display.getDisplay(this);
    display.setCurrent(textBox);
}

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From source file:gov.va.vinci.leo.tools.AsciiFilter.java

/**
 * @see gov.va.vinci.leo.tools.TextFilter#filter(java.io.InputStream, java.lang.String)
 * @param inputStream the input stream to read from.
 * @param charsetName the characterset the document is in.
 * @return New String with filtered Text
 * @throws java.io.IOException if there is an error reading the stream
 */// w ww  .j a v a 2  s.  c o m
@Override
public String filter(InputStream inputStream, String charsetName) throws IOException {
    if (inputStream == null)
        return null;
    if (StringUtils.isBlank(charsetName)) {
        throw new IllegalArgumentException("Character Set Name required");
    } //if

    InputStreamReader isr = new InputStreamReader(inputStream, charsetName);
    StringBuilder sb = new StringBuilder();
    int numRead = 0;
    char[] chars = new char[1024];
    while ((numRead = isr.read(chars, 0, 1024)) > -1) {
        sb.append(chars, 0, numRead);
    } //while
    return AsciiService.toASCII8(sb.toString());
}

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From source file:gov.va.vinci.leo.tools.XmlFilter.java

/**
 * @see gov.va.vinci.leo.tools.TextFilter#filter(java.io.InputStream, java.lang.String)
 * @param inputStream An input stream that is read in, filtered, and returned as a string.
 * @param charsetName  A charset to use for the stream.
 * @return the text filtered. Non XML-1.0 characters become spaces.
 * @throws java.io.IOException of the stream cannot be read.
 *///from w  w  w  . j av a  2  s . c  o m
@Override
public String filter(InputStream inputStream, String charsetName) throws IOException {
    if (inputStream == null) {
        return null;
    }
    if (StringUtils.isBlank(charsetName)) {
        throw new IllegalArgumentException("Character Set Name required");
    } //if
      //Build the string from the InputStreamReader
    InputStreamReader isr = new InputStreamReader(inputStream, charsetName);
    StringBuilder sb = new StringBuilder();
    int numRead = 0;
    char[] chars = new char[1024];
    while ((numRead = isr.read(chars, 0, 1024)) > -1) {
        sb.append(chars, 0, numRead);
    } //while
    return XmlFilter.toXml10(sb.toString());
}

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From source file:TextBox2MIDlet.java

protected void startApp() {
    if (!started) {
        // First time through - initialize            
        // Get the text to be displayed
        String str = null;/*  www  .  ja v  a2s. c  o m*/
        try {
            InputStream is = getClass().getResourceAsStream("test.txt");
            InputStreamReader r = new InputStreamReader(is);
            char[] buffer = new char[32];
            StringBuffer sb = new StringBuffer();
            int count;
            while ((count = r.read(buffer, 0, buffer.length)) > -1) {
                sb.append(buffer, 0, count);
            }
            str = sb.toString();
        } catch (IOException ex) {
            str = "Failed to load text";
        }

        // Create the TextBox
        textBox = new TextBox("TextBox Example", str, MAX_TEXT_SIZE, TextField.ANY);

        // Create a ticker and install it
        Ticker ticker = new Ticker("This is a ticker...");
        textBox.setTicker(ticker);

        // Install the TextBox as the current screen
        display = Display.getDisplay(this);
        display.setCurrent(textBox);

        started = true;
    }
}

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