Example usage for java.io Reader read

Introduction

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

Prototype

public int read(char cbuf[]) throws IOException

Source Link

Document

Reads characters into an array.

Usage

From source file:com.microsoft.tfs.jni.helpers.FileCopyHelper.java

private static void copy(final Reader source, final Writer destination) throws IOException {
    final char[] buffer = new char[4096];
    int len;//from ww w .  j  a  v  a  2s  .  c o  m

    while ((len = source.read(buffer)) != -1) {
        destination.write(buffer, 0, len);
    }
}

From source file:cz.incad.kramerius.k5indexer.Commiter.java

/**
 * Pipes everything from the reader to the writer via a buffer except lines
 * starting with '<?'/*  ww  w  . ja  v a 2 s.c  om*/
 */
private static void pipeString(Reader reader, StringBuilder writer) throws IOException {
    char[] buf = new char[1024];
    int read = 0;
    while ((read = reader.read(buf)) >= 0) {
        if (!(buf[0] == '<' && buf[1] == '?')) {
            writer.append(buf, 0, read);
        }
    }
}

From source file:FileUtil.java

/**
 *  Just copies all characters from <I>in</I> to <I>out</I>.  The copying
 *  is performed using a buffer of bytes.
 *
 *  @since 1.5.8/*from  w  w w. j  a v a 2 s  .c o  m*/
 *  @param in The reader to copy from
 *  @param out The reader to copy to
 *  @throws IOException If reading or writing failed.
 */
public static void copyContents(Reader in, Writer out) throws IOException {
    char[] buf = new char[BUFFER_SIZE];
    int bytesRead = 0;

    while ((bytesRead = in.read(buf)) > 0) {
        out.write(buf, 0, bytesRead);
    }

    out.flush();
}

From source file:Base64.java

private static char[] readChars(final File file) {
    final CharArrayWriter caw = new CharArrayWriter();
    try {//from w ww  . java2s  .c om
        final Reader fr = new FileReader(file);
        final Reader in = new BufferedReader(fr);
        int count;
        final char[] buf = new char[16384];
        while ((count = in.read(buf)) != -1) {
            if (count > 0) {
                caw.write(buf, 0, count);
            }
        }
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }

    return caw.toCharArray();
}

From source file:eu.prestoprime.p4gui.connection.SearchConnection.java

public static String solrSuggest(P4Service service, final String term) {
    Writer writer = new StringWriter();

    String results = "";
    try {//w  ww .j a v a2 s.  c om
        StringBuilder sb = new StringBuilder();
        sb.append(service.getURL());
        sb.append(SUGGEST_URI);
        sb.append("?term=");
        sb.append(term);
        String path = sb.toString();

        logger.debug("Query to P4WS:\n" + path);

        P4HttpClient client = new P4HttpClient(service.getUserID());

        client.getParams().setParameter("http.protocol.content-charset", "UTF-8");

        HttpRequestBase request = new HttpGet(path);
        HttpResponse response = client.executeRequest(request);
        HttpEntity entity = response.getEntity();

        if (entity != null) {
            InputStream is = entity.getContent();
            if (is != null) {
                char[] buffer = new char[1024];

                Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
                int n;
                while ((n = reader.read(buffer)) != -1) {
                    writer.write(buffer, 0, n);
                }
                is.close();
            }
        }
        results = writer.toString();
        EntityUtils.consume(entity);
        writer.close();
    } catch (Exception e) {
        logger.error(e.getMessage());
        logger.error("Either the query was invalid or P4WS could not be accessed.");
        results = null;
    }
    return results;
}

From source file:niclients.main.getni.java

/**
* To convert the InputStream to String we use the
* Reader.read(char[] buffer) method. We iterate until the
* Reader return -1 which means there's no more data to
* read. We use the StringWriter class to produce the string.
* 
* @param is inputStream from where content to be converted is read
*
* @exception throws IOException/*  w w w  .  j av a 2  s. c om*/
*
* @return converted stream string (null if stream is empty)
*/
public static String convertStreamToString(InputStream is) throws IOException {

    if (is != null) {
        Writer writer = new StringWriter();

        char[] buffer = new char[1024];
        try {
            Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            int n;
            while ((n = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, n);
            }
        } finally {
            is.close();
        }
        return writer.toString();
    } else {
        return "";
    }
}

From source file:FileCopyUtils.java

/**
 * Copy the contents of the given Reader to the given Writer.
 * Closes both when done./*from w w w  .  j a va 2s  . c  o m*/
 * @param in the Reader to copy from
 * @param out the Writer to copy to
 * @return the number of characters copied
 * @throws IOException in case of I/O errors
 */
public static int copy(Reader in, Writer out) throws IOException {

    try {
        int byteCount = 0;
        char[] buffer = new char[BUFFER_SIZE];
        int bytesRead = -1;
        while ((bytesRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
            byteCount += bytesRead;
        }
        out.flush();
        return byteCount;
    } finally {
        try {
            in.close();
        } catch (IOException ex) {
            System.out.println("Could not close Reader" + ex);
        }
        try {
            out.close();
        } catch (IOException ex) {
            System.out.println("Could not close Writer:" + ex);
        }
    }
}

From source file:org.kontalk.upload.KontalkBoxUploadConnection.java

public static String responseToString(HttpURLConnection conn, final Charset charset) throws IOException {
    final InputStream instream = conn.getInputStream();
    if (instream == null) {
        return null;
    }/*from  w  ww.jav a 2 s. c om*/
    try {
        int i = conn.getContentLength();
        if (i < 0) {
            i = 4096;
        }
        final Reader reader = new InputStreamReader(instream, charset);
        final StringBuilder buffer = new StringBuilder(i);
        final char[] tmp = new char[1024];
        int l;
        while ((l = reader.read(tmp)) != -1) {
            buffer.append(tmp, 0, l);
        }
        return buffer.toString();
    } finally {
        instream.close();
    }
}

From source file:com.moss.appsnap.keeper.freedesktop.FreeDesktopAppHandler.java

private static StringBuilder read(Reader reader) throws IOException {
    StringBuilder appsMenu = new StringBuilder();
    final char[] buf = new char[1024];
    for (int x = reader.read(buf); x != -1; x = reader.read(buf)) {
        appsMenu.append(buf, 0, x);/*from   w w w  .j a  va  2  s .co  m*/
    }
    reader.close();

    return appsMenu;
}

From source file:de.feanor.yeoldemensa.data.MensaFactory.java

private static String convertStreamToString(InputStream is) throws IOException {
    /*/*from   www .ja  v  a  2s.  c o  m*/
     * To convert the InputStream to String we use the Reader.read(char[]
     * buffer) method. We iterate until the Reader return -1 which means
     * there's no more data to read. We use the StringWriter class to
     * produce the string.
     */
    if (is != null) {
        Writer writer = new StringWriter();

        char[] buffer = new char[1024];
        try {
            Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            int n;
            while ((n = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, n);
            }
        } finally {
            is.close();
        }
        return writer.toString();
    }
    return "";
}