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:magixcel.FileMan.java

public static void printInputFile() {
    try {//from  w w w. j a va 2  s  .c o  m

        InputStream is = new FileInputStream(INPUT_FILE_PATH);
        Reader isr = new InputStreamReader(is, Charsets.ISO_8859_1);
        BufferedReader buffReader = new BufferedReader(isr);

        // read lines from input file
        String line = buffReader.readLine();
        while (line != null && line.length() > 0) {
            System.out.println(line);
            LINES_FROM_INPUT_FILE.add(line);
            line = buffReader.readLine();

        }

        is.close();
        isr.close();
        buffReader.close();

        //            write lines to new file
        //            FileOutputStream fos = new FileOutputStream(OUTPUT_FILE_DIRECTORY + "testOutput.txt");
        //            OutputStreamWriter osw = new OutputStreamWriter(fos, Charsets.ISO_8859_1);
        //            BufferedWriter bw = new BufferedWriter(osw);
        //            for (String lineOut : LINES_FROM_FILE) {
        //                System.out.println("Writing line: " + lineOut);
        //                bw.write(lineOut);
        //
        //            }
        //            bw.close();
        //            fos.close();
        //            osw.close();
    } catch (FileNotFoundException ex) {
        //            todo bedre hndtering
        System.out.println("File not found... restart the application and supply valid file");
    } catch (IOException ex) {
        System.out.println(
                "Something went wrong parsing the file... restart the application and supply valid file");
    }

}

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From source file:com.all.client.util.FileUtil.java

private static void closeReader(Reader reader) {
    if (reader != null) {
        try {// w  ww  . ja va  2s . c o  m
            reader.close();
        } catch (IOException e) {
            LOG.info(e, e);
        }
    }
}

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From source file:com.predic8.membrane.core.util.TextUtil.java

public static String formatXML(Reader reader, boolean asHTML) {
    StringWriter out = new StringWriter();

    try {//from  w ww  . j a v a  2 s .com
        XMLBeautifierFormatter formatter = asHTML ? new HtmlBeautifierFormatter(out, 0)
                : new PlainBeautifierFormatter(out, 0);
        XMLBeautifier beautifier = new XMLBeautifier(formatter);
        beautifier.parse(reader);
    } catch (Exception e) {
        log.error("", e);
    } finally {
        try {
            out.close();
            reader.close();
        } catch (IOException e) {
            log.error("", e);
        }
    }
    return out.toString();

}

---

From source file:Main.java

/**
 * Read and return the entire contents of the supplied {@link File}.
 * /* w ww. j  a v  a  2  s  . c  om*/
 * @param file the file containing the information to be read; may be null
 * @return the contents, or an empty string if the supplied reader is null
 * @throws IOException if there is an error reading the content
 */
public static String read(File file) throws IOException {
    if (file == null)
        return "";
    StringBuilder sb = new StringBuilder();
    boolean error = false;
    Reader reader = new FileReader(file);
    try {
        int numRead = 0;
        char[] buffer = new char[1024];
        while ((numRead = reader.read(buffer)) > -1) {
            sb.append(buffer, 0, numRead);
        }
    } catch (IOException e) {
        error = true; // this error should be thrown, even if there is an error closing reader
        throw e;
    } catch (RuntimeException e) {
        error = true; // this error should be thrown, even if there is an error closing reader
        throw e;
    } finally {
        try {
            reader.close();
        } catch (IOException e) {
            if (!error)
                throw e;
        }
    }
    return sb.toString();
}

---

From source file:org.wso2.cdm.agent.proxy.ServerApiAccess.java

public static String getResponseBodyContent(final HttpEntity entity) throws IOException, ParseException {

    if (entity == null) {
        throw new IllegalArgumentException("HTTP entity may not be null");
    }/*  www . j  av  a 2  s  .c  om*/

    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 = 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:Main.java

public static String highlight(final List<String> lines, final String meta, final String prog,
        final String encoding) throws IOException {
    final File tmpIn = new File(System.getProperty("java.io.tmpdir"),
            String.format("txtmark_code_%d_%d.in", ID, IN_COUNT.incrementAndGet()));
    final File tmpOut = new File(System.getProperty("java.io.tmpdir"),
            String.format("txtmark_code_%d_%d.out", ID, OUT_COUNT.incrementAndGet()));

    try {/*from   w  ww.ja  v a2 s . co  m*/

        final Writer w = new OutputStreamWriter(new FileOutputStream(tmpIn), encoding);

        try {
            for (final String s : lines) {
                w.write(s);
                w.write('\n');
            }
        } finally {
            w.close();
        }

        final List<String> command = new ArrayList<String>();

        command.add(prog);
        command.add(meta);
        command.add(tmpIn.getAbsolutePath());
        command.add(tmpOut.getAbsolutePath());

        final ProcessBuilder pb = new ProcessBuilder(command);
        final Process p = pb.start();
        final InputStream pIn = p.getInputStream();
        final byte[] buffer = new byte[2048];

        int exitCode = 0;
        for (;;) {
            if (pIn.available() > 0) {
                pIn.read(buffer);
            }
            try {
                exitCode = p.exitValue();
            } catch (final IllegalThreadStateException itse) {
                continue;
            }
            break;
        }

        if (exitCode == 0) {
            final Reader r = new InputStreamReader(new FileInputStream(tmpOut), encoding);
            try {
                final StringBuilder sb = new StringBuilder();
                for (;;) {
                    final int c = r.read();
                    if (c >= 0) {
                        sb.append((char) c);
                    } else {
                        break;
                    }
                }
                return sb.toString();
            } finally {
                r.close();
            }
        }

        throw new IOException("Exited with exit code: " + exitCode);
    } finally {
        tmpIn.delete();
        tmpOut.delete();
    }
}

---

From source file:com.vmware.bdd.specpolicy.ClusterSpecFactory.java

/**
 * Load and create cluster from spec file
 * //from   w  ww. java 2 s  . c o m
 * @return cluster spec
 */
public static ClusterCreate loadFromFile(File file) throws FileNotFoundException {
    Reader fileReader = null;
    try {
        fileReader = new FileReader(file);
        Gson gson = new Gson();
        return gson.fromJson(fileReader, ClusterCreate.class);
    } finally {
        if (fileReader != null) {
            try {
                fileReader.close();
            } catch (IOException e) {
                logger.error("Failed to release buffer: " + e.getMessage());
            }
        }
    }
}

---

From source file:it.cloudicaro.disit.kb.rdf.HttpUtil.java

public static String post(URL url, String data, String contentType, String user, String passwd)
        throws Exception {
    //System.out.println("POST "+url);
    HttpClient client = HttpClients.createDefault();
    HttpPost request = new HttpPost(url.toURI());
    request.setEntity(new StringEntity(data, ContentType.create(contentType, "UTF-8")));

    HttpClientContext context = HttpClientContext.create();
    if (user != null && passwd != null) {
        CredentialsProvider credsProvider = new BasicCredentialsProvider();
        credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user, passwd));
        context.setCredentialsProvider(credsProvider);
    }/*from  w  ww  .  ja v  a  2s  .  c o  m*/

    HttpResponse response = client.execute(request, context);

    StatusLine s = response.getStatusLine();
    int code = s.getStatusCode();
    //System.out.println(code);
    if (code == 204)
        return "";
    if (code != 200)
        throw new Exception(
                "failed access to " + url.toString() + " code: " + code + " " + s.getReasonPhrase());

    Reader reader = null;
    try {
        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) {
                e.printStackTrace();
            }
        }
    }
}

---

From source file:IOUtil.java

/**
 * Unconditionally close an <code>Reader</code>.
 * Equivalent to {@link Reader#close()}, except any exceptions will be ignored.
 *
 * @param input A (possibly null) Reader
 *///from www . ja va 2  s . c o  m
public static void shutdownReader(final Reader input) {
    if (null == input) {
        return;
    }

    try {
        input.close();
    } catch (final IOException ioe) {
    }
}

---

From source file:org.wso2.mdm.agent.proxy.utils.ServerUtilities.java

public static String getResponseBodyContent(final HttpEntity entity) throws IOException, ParseException {

    InputStream instream = entity.getContent();

    if (entity.getContentLength() > Integer.MAX_VALUE) {
        throw new IllegalArgumentException("HTTP entity too large to be buffered in memory.");
    }/*from w w  w.  jav  a2 s.  c om*/

    String charset = getContentCharSet(entity);

    if (charset == null) {
        charset = HTTP.DEFAULT_CONTENT_CHARSET;
    }

    Reader reader = new InputStreamReader(instream, charset);
    StringBuilder buffer = new StringBuilder();

    try {
        char[] bufferSize = new char[1024];
        int length;

        while ((length = reader.read(bufferSize)) != -1) {
            buffer.append(bufferSize, 0, length);
        }
    } finally {
        reader.close();
    }

    return buffer.toString();

}

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