Example usage for java.io Reader close

Introduction

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

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream and releases any system resources associated with it.

Usage

From source file:com.taveloper.http.test.ParseBenchmark.java

private static String resourceToString(String path) throws Exception {
    InputStream in = ParseBenchmark.class.getResourceAsStream(path);
    if (in == null) {
        throw new IllegalArgumentException("No such file: " + path);
    }//from ww w. ja  v a  2  s.co m

    Reader reader = new InputStreamReader(in, "UTF-8");
    char[] buffer = new char[8192];
    StringWriter writer = new StringWriter();
    int count;
    while ((count = reader.read(buffer)) != -1) {
        writer.write(buffer, 0, count);
    }
    reader.close();
    return writer.toString();
}

From source file:FileUtil.java

/**
 *  Makes a new temporary file and writes content into it. The temporary
 *  file is created using <code>File.createTempFile()</code>, and the usual
 *  semantics apply.  The files are not deleted automatically in exit.
 *
 *  @param content Initial content of the temporary file.
 *  @param encoding Encoding to use.// w  ww  .j a  va  2  s  .  co m
 *  @return The handle to the new temporary file
 *  @throws IOException If the content creation failed.
 *  @see java.io.File#createTempFile(String,String,File)
 */
public static File newTmpFile(String content, String encoding) throws IOException {
    Writer out = null;
    Reader in = null;
    File f = null;

    try {
        f = File.createTempFile("jspwiki", null);

        in = new StringReader(content);

        out = new OutputStreamWriter(new FileOutputStream(f), encoding);

        copyContents(in, out);
    } finally {
        if (in != null)
            in.close();
        if (out != null)
            out.close();
    }

    return f;
}

From source file:com.freedomotic.plugin.purl.Purl.java

private static String readPage(URL url) throws Exception {

    DefaultHttpClient client = new DefaultHttpClient();
    HttpGet request = new HttpGet(url.toURI());
    HttpResponse response = client.execute(request);

    Reader reader = null;
    try {// w ww  . jav  a  2  s .co m
        reader = new InputStreamReader(response.getEntity().getContent());

        StringBuilder sb = new StringBuilder();
        int read;
        char[] cbuf = new char[1024];
        while ((read = reader.read(cbuf)) != -1) {
            sb.append(cbuf, 0, read);
        }
        return sb.toString();

    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
                //do nothing
            }
        }
    }
}

From source file:de.uzk.hki.da.sb.Utilities.java

/**
 * Deserializes the given file and returns its content as a string
 * /*from  w w  w  .  jav a 2s.  c  o m*/
 * @param file The file to read
 * @return The file content as a string
 * @throws Exception
 */
public static String readFile(File file) throws Exception {

    Reader reader;
    try {
        reader = new FileReader(file.getAbsolutePath());
    } catch (FileNotFoundException e) {
        throw new Exception("Couldn't create reader", e);
    }
    String text = "";

    try {
        for (int c; (c = reader.read()) != -1;)
            text += (char) c;

        reader.close();

    } catch (IOException e) {
        throw new Exception("Couldn't read file " + file.getAbsolutePath(), e);
    }

    return text;
}

From source file:com.google.dart.tools.core.utilities.io.FileUtilities.java

/**
 * Return the contents of the given reader, interpreted as a string. The {@link Reader} will be
 * closed.//from   ww w .j a v a2  s  .c om
 * 
 * @param reader the reader whose contents are to be returned
 * @return the contents of the given reader, interpreted as a string
 * @throws IOException if the reader could not be read
 */
public static String getContents(Reader reader) throws IOException {
    try {
        return CharStreams.toString(reader);
    } finally {
        reader.close();
    }
}

From source file:ded.model.Diagram.java

/** Read a Diagram from a file, expect the JSON format only. */
public static Diagram readFromFile(String fname) throws Exception {
    FileInputStream fis = new FileInputStream(fname);
    try {//  ww w. j  ava 2s  . c  o m
        Reader r = new BufferedReader(new InputStreamReader(fis, "UTF-8"));
        try {
            return readFromReader(r);
        } finally {
            r.close();
            fis = null;
        }
    } finally {
        if (fis != null) {
            fis.close();
        }
    }
}

From source file:com.android.volley.misc.Utils.java

public static String readFully(Reader reader) throws IOException {
    try {//from   www.ja  v  a2s  .c o m
        StringWriter writer = new StringWriter();
        char[] buffer = new char[1024];
        int count;
        while ((count = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, count);
        }
        return writer.toString();
    } finally {
        reader.close();
    }
}

From source file:com.glaf.core.util.IOUtils.java

/**
 * write string./*from w w  w .  ja  va2s.com*/
 * 
 * @param writer
 *            Writer instance.
 * @param string
 *            String.
 * @throws IOException
 */
public static long write(Writer writer, String string) throws IOException {
    Reader reader = new StringReader(string);
    try {
        return write(reader, writer);
    } finally {
        reader.close();
    }
}

From source file:net.opentracker.android.OTSend.java

/**
 * getResponseBody function gives out the HTTP POST data from the given
 * httpResponse output: data from the http as string input : httpEntity type
 * //from w  w  w .  j  a va2 s .c o  m
 * based on:
 * http://thinkandroid.wordpress.com/2009/12/30/getting-response-body
 * -of-httpresponse/
 */
private static String getResponseBody(final HttpEntity entity) throws IOException, ParseException {
    LogWrapper.v(TAG, "getResponseBody(final HttpEntity entity)");

    if (entity == null) {
        throw new IllegalArgumentException("HTTP entity may not be null");
    }
    InputStream instream = entity.getContent();
    if (instream == null) {
        return "";
    }
    if (entity.getContentLength() > Integer.MAX_VALUE) {
        throw new IllegalArgumentException("HTTP entity too large to be buffered in memory");
    }
    String charset = EntityUtils.getContentCharSet(entity);
    if (charset == null) {
        charset = HTTP.DEFAULT_CONTENT_CHARSET;
    }
    Reader reader = new InputStreamReader(instream, charset);
    StringBuilder buffer = new StringBuilder();
    try {
        char[] tmp = new char[1024];
        int l;
        while ((l = reader.read(tmp)) != -1) {
            buffer.append(tmp, 0, l);
        }
    } finally {
        reader.close();
    }
    return buffer.toString();
}

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  2  s.co  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);
        }
    }
}