Example usage for java.io Writer close

List of usage examples for java.io Writer close

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Introduction

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

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream, flushing it first.

Usage

From source file:com.raphfrk.craftproxyclient.net.auth.AuthManager.java

private static void writeAccessToken(JSONObject obj) {
    Writer writer = null;
    try {// w  w  w  .  ja  va2  s . com
        writer = new BufferedWriter(
                new OutputStreamWriter(new FileOutputStream(tokenFilename), StandardCharsets.UTF_8));
        obj.writeJSONString(writer);

    } catch (IOException e) {
    } finally {
        if (writer != null) {
            try {
                writer.close();
            } catch (IOException e) {
            }
        }
    }
}

From source file:com.google.gwtjsonrpc.server.JsonServlet.java

private static void textError(final ActiveCall call, final int status, final String message)
        throws IOException {
    final HttpServletResponse r = call.httpResponse;
    r.setStatus(status);// w w w .  jav  a 2 s. co m
    r.setContentType("text/plain; charset=" + ENC);

    final Writer w = new OutputStreamWriter(r.getOutputStream(), ENC);
    try {
        w.write(message);
    } finally {
        w.close();
    }
}

From source file:ca.licef.lompad.Classification.java

public static File doImportFile(Component parent) {
    JFileChooser chooser = new JFileChooser();
    if (Preferences.getInstance().getPrevClassifDir() != null)
        chooser.setCurrentDirectory(Preferences.getInstance().getPrevClassifDir());
    int returnVal = chooser.showOpenDialog(parent);
    if (returnVal == JFileChooser.APPROVE_OPTION) {
        try {/*from   w w  w.  j ava  2  s .c  o  m*/
            Preferences.getInstance().setPrevClassifDir(chooser.getCurrentDirectory());
        } catch (Exception e) {
            e.printStackTrace();
        }

        try {
            File skosInputFile = chooser.getSelectedFile();
            File tmpFile = null;

            String xml = IOUtil.readStringFromFile(chooser.getSelectedFile());
            String rootTagName = XMLUtil.getRootTagName(xml);
            if (rootTagName != null) {
                String[] array = StringUtil.split(rootTagName, ':');
                rootTagName = array[array.length - 1].toLowerCase();
            }
            boolean isVdexFile = (rootTagName != null && "vdex".equals(rootTagName));
            if (isVdexFile) {
                String xsltFile = "/xslt/convertVDEXToSKOS.xsl";
                StreamSource xslt = new StreamSource(Util.class.getResourceAsStream(xsltFile));

                StreamSource xmlSource = new StreamSource(new BufferedReader(new StringReader(xml)));

                Node skosNode = XMLUtil.applyXslToDocument2(xslt, xmlSource, null, null, null);
                tmpFile = File.createTempFile("lompad", "inputSkos");
                Writer tmpFileWriter = new BufferedWriter(
                        new OutputStreamWriter(new FileOutputStream(tmpFile, false), "UTF-8"));

                try {
                    XMLUtil.serialize(skosNode, false, tmpFileWriter);
                } finally {
                    if (tmpFileWriter != null)
                        tmpFileWriter.close();
                }
                skosInputFile = tmpFile;
            }

            Classification classif = new Classification(skosInputFile);
            classif.initModel(true);
            String uri = classif.getConceptSchemeUri();
            if (uri == null)
                throw new Exception("ConceptScheme's URI not found.");
            String sha1 = DigestUtils.shaHex(uri);
            File localFile = new File(Util.getClassificationFolder(), sha1 + ".rdf");
            classif.dumpModelToRdf(localFile);

            if (tmpFile != null)
                tmpFile.delete();

            return (localFile);
        } catch (Exception e) {
            e.printStackTrace();
            String msg = "classifImportFailed";
            if ("Classification identifier not found.".equals(e.getMessage()))
                msg = "classifIdentifierNotFound";
            JDialogAlert dialog = new JDialogAlert(Util.getTopJFrame((Container) parent), "titleErr", msg);
            dialog.setSize(320, 140);
            dialog.setVisible(true);
            return (null);
        }
    } else
        return (null);
}

From source file:com.twitter.elephanttwin.util.HdfsUtils.java

/**
 * Write \n separated lines of text to HDFS as UTF-8.
 *//*  w  ww. j  a v  a 2 s.  c  o  m*/
public static void writeLines(FileSystem fs, Path path, Iterable<String> lines) throws IOException {
    Preconditions.checkNotNull(fs);
    Preconditions.checkNotNull(path);
    Preconditions.checkNotNull(lines);
    Writer stream = new BufferedWriter(new OutputStreamWriter(fs.create(path), "UTF-8"));
    try {
        for (String line : lines) {
            stream.write(line + "\n");
        }
    } finally {
        stream.close();
    }
}

From source file:com.hazelcast.stabilizer.Utils.java

public static void writeText(String text, File file) {
    if (text == null) {
        throw new NullPointerException("text can't be null");
    }/*from   w  w  w. j av a2  s  .co  m*/

    if (file == null) {
        throw new NullPointerException("file can't be null");
    }

    try {
        FileOutputStream stream = new FileOutputStream(file);
        try {
            Writer writer = new BufferedWriter(new OutputStreamWriter(stream));
            writer.write(text);
            writer.close();
        } finally {
            closeQuietly(stream);
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:com.hazelcast.stabilizer.Utils.java

public static void appendText(String text, File file) {
    if (text == null) {
        throw new NullPointerException("text can't be null");
    }/* w ww  .ja  v  a 2  s  . co  m*/

    if (file == null) {
        throw new NullPointerException("file can't be null");
    }

    try {
        FileOutputStream stream = new FileOutputStream(file, true);
        try {
            Writer writer = new BufferedWriter(new OutputStreamWriter(stream));
            writer.write(text);
            writer.close();
        } finally {
            closeQuietly(stream);
        }
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

/**
 * Write the entire contents of the supplied string to the given writer. This method always flushes and closes the writer when
 * finished.//from w w w  . j  a  v  a  2  s .co  m
 * 
 * @param content the content to write to the writer; may be null
 * @param writer the writer to which the content is to be written
 * @throws IOException
 * @throws IllegalArgumentException if the writer is null
 */
public static void write(String content, Writer writer) throws IOException {
    boolean error = false;
    try {
        if (content != null) {
            writer.write(content);
        }
    } catch (IOException e) {
        error = true; // this error should be thrown, even if there is an error flushing/closing writer
        throw e;
    } catch (RuntimeException e) {
        error = true; // this error should be thrown, even if there is an error flushing/closing writer
        throw e;
    } finally {
        try {
            writer.flush();
        } catch (IOException e) {
            if (!error)
                throw e;
        } finally {
            try {
                writer.close();
            } catch (IOException e) {
                if (!error)
                    throw e;
            }
        }
    }
}

From source file:com.sshtools.common.vomanagementtool.common.VOHelper.java

private static void appendLineToFavourites(String line) throws IOException {
    Writer output;
    output = new BufferedWriter(new FileWriter(favouritesFile, true));
    output.append(line + "\n");
    output.close();
}

From source file:mitm.common.extractor.impl.TextExtractorUtils.java

/**
 * conveniance method that writes data and fires a 
 * {@link TextExtractorEventHandler#textEvent(mitm.common.extractor.ExtractedPart)} event. The Data is written
 * to disk if total bytes exceed threshold. If total bytes written exceeds maxSize, an IOException will
 * be thrown.//  w ww  .  j  av  a  2s . co  m
 * 
 */
public static void fireTextEvent(TextExtractorEventHandler handler, TextExtractorContext context,
        TextExtractorWriterHandler writerHandler, int threshold, long maxSize) throws IOException {
    Check.notNull(handler, "handler");
    Check.notNull(writerHandler, "writerHandler");

    DeferredFileOutputStream output = new DeferredFileOutputStream(threshold, FileConstants.TEMP_FILE_PREFIX,
            null, null);

    RewindableInputStream content = null;

    try {
        /*
         * Wrap the output in a buffered stream and protect against 'zip bombs'.
         */
        SizeLimitedOutputStream buffered = new SizeLimitedOutputStream(new BufferedOutputStream(output),
                maxSize);

        Writer writer = new OutputStreamWriter(buffered, TextExtractor.ENCODING);

        try {
            writerHandler.write(writer);
        } finally {
            /*
             * Must close to make sure all data is written. 
             * 
             * Note: if DeferredFileOutputStream uses a file, the file should NOT 
             * be deleted here because it will be deleted when the returned 
             * DeferredBufferedInputStream is closed.
             */
            writer.close();
        }

        content = new RewindableInputStream(MiscIOUtils.toInputStream(output), threshold);

        handler.textEvent(new ExtractedPartImpl(context, content, buffered.getByteCount()));
    } catch (IOException e) {
        /*
         * Must close the RewindableInputStream to prevent a possible temp file leak
         */
        IOUtils.closeQuietly(content);

        /*
         * Delete the tempfile (if) used by DeferredFileOutputStream.
         */
        IOUtils.closeQuietly(output);
        FileUtils.deleteQuietly(output.getFile());

        throw e;
    } catch (RuntimeException e) {
        /*
         * Must close the RewindableInputStream to prevent a possible temp file leak
         */
        IOUtils.closeQuietly(content);

        /*
         * Delete the tempfile (if) used by DeferredFileOutputStream.
         */
        IOUtils.closeQuietly(output);
        FileUtils.deleteQuietly(output.getFile());

        throw e;
    }
}

From source file:FileCopyUtils.java

/**
 * Copy the contents of the given Reader to the given Writer.
 * Closes both when done.//from  w ww  .  j  a va2  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);
        }
    }
}