Example usage for java.io Reader read

List of usage examples for java.io Reader read

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Introduction

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

Prototype

public int read() throws IOException

Source Link

Document

Reads a single character.

Usage

From source file:com.norconex.importer.handler.transformer.AbstractStringTransformer.java

@Override
protected final void transformTextDocument(String reference, Reader input, Writer output,
        ImporterMetadata metadata, boolean parsed) throws IOException {

    // Initial size is half free memory, considering chars take 2 bytes
    StringBuilder b = new StringBuilder((int) (MemoryUtil.getFreeMemory() / STRING_TOTAL_MEMORY_DIVIDER));
    int i;/*from  w  w  w  . j a va2  s  .  c  o m*/
    while ((i = input.read()) != -1) {
        char ch = (char) i;
        b.append(ch);
        if (b.length() * 2 % READ_CHUNK_SIZE == 0 && isTakingTooMuchMemory(b)) {
            transformStringContent(reference, b, metadata, parsed, true);
            BufferUtil.flushBuffer(b, output, true);
        }
    }
    if (b.length() > 0) {
        transformStringContent(reference, b, metadata, parsed, false);
        BufferUtil.flushBuffer(b, output, false);
    }
    b.setLength(0);
    b = null;
}

From source file:name.vysoky.xhtml.Corrector.java

private void process(File inputFile, File outputFile, String codePage) {
    Reader reader = null;
    Writer writer = null;/*from  ww w  . j a v  a2  s .c  om*/
    try {
        reader = new InputStreamReader(new BufferedInputStream(new FileInputStream(inputFile)), codePage);
        writer = new OutputStreamWriter(new BufferedOutputStream(new FileOutputStream(outputFile)), codePage);
        char c;
        int b = reader.read();
        while (b != -1) {
            c = (char) b;
            writer.write(processChar(c));
            b = reader.read();
        }
        if (builder.length() > 0)
            writer.write(builder.toString().toCharArray());
    } catch (IOException e) {
        System.err.println("Unable write streams!");
        e.printStackTrace();
    } finally {
        try {
            if (reader != null)
                reader.close();
            if (writer != null)
                writer.close();
        } catch (IOException e) {
            System.err.println("Unable to close streams!");
            e.printStackTrace();
        }
    }
}

From source file:com.seajas.search.contender.service.modifier.ModifierFilterProcessorTest.java

/**
 * Test the modifier filter asExpression = true parser.
 * //from  w w  w  .j a v a2 s .c om
 * @throws IOException
 */
@Test
public void testExpressionFilterMultiLine() throws IOException {
    ModifierFilterProcessor processor = new ModifierFilterProcessor();

    ModifierFilter modifierFilter = new ModifierFilter();

    modifierFilter.setId(-1);
    modifierFilter.setModifierId(-1);
    modifierFilter.setFragmentStart("<item>[^<]*<title><\\!\\[CDATA\\[AD\\:.*</title>");
    modifierFilter.setFragmentEnd("<\\/item>");
    modifierFilter.setIsExpression(true);

    Reader result = processor.process(modifierFilter,
            new StringReader("Foo<item>\n\t  <title><![CDATA[AD: FooBar]]></title>\n"
                    + "\t<link>http://foo/</link>\n\t<description><![CDATA[<div></div>]]></description>\n\t</item>Bar"));

    StringBuffer buffer = new StringBuffer();

    for (int c; (c = result.read()) != -1;)
        buffer.append((char) c);

    assertEquals(buffer.toString(), "Foo<item>\n\t  <title><![CDATA[AD: FooBar]]></title></item>Bar");
}

From source file:com.norconex.importer.handler.tagger.AbstractStringTagger.java

@Override
protected final void tagTextDocument(String reference, Reader input, ImporterMetadata metadata, boolean parsed)
        throws ImporterHandlerException {

    try {/*from   w  ww.  ja v a2s  .c o m*/
        // Initial size is half free memory, considering chars take 2 bytes
        StringBuilder b = new StringBuilder((int) (MemoryUtil.getFreeMemory() / STRING_TOTAL_MEMORY_DIVIDER));
        int i;
        while ((i = input.read()) != -1) {
            char ch = (char) i;
            b.append(ch);
            if (b.length() * 2 % READ_CHUNK_SIZE == 0 && isTakingTooMuchMemory(b)) {
                tagStringContent(reference, b, metadata, parsed, true);
                BufferUtil.flushBuffer(b, null, true);
            }
        }
        if (b.length() > 0) {
            tagStringContent(reference, b, metadata, parsed, false);
            BufferUtil.flushBuffer(b, null, false);
        }
        b.setLength(0);
        b = null;
    } catch (IOException e) {
        throw new ImporterHandlerException("Cannot tag text document.", e);
    }

}

From source file:fedroot.dacs.swingdemo.DacsClientFrame.java

/**
 * Loads contents of the input stream in a separate thread.
 * @param is input stream to be rendered as HTML
 *///from  ww  w.  j a va2  s  .  co  m
private void loadPage(final String contenttype, final InputStream is) {
    // create a new thread to load the URL from
    final StringBuffer sb = new StringBuffer();
    new Thread() {

        public void run() {

            try {
                // chain the InputStream to a Reader
                Reader r = new InputStreamReader(new BufferedInputStream(is));
                int c;
                while ((c = r.read()) != -1) {
                    sb.append((char) c);
                }
                is.close();
                if (is != null) {
                    // set the HTML on the UI thread
                    SwingUtilities.invokeLater(new Runnable() {

                        public void run() {
                            setDocumentContent(contenttype, sb.toString());
                        }
                    });
                }
            } catch (IOException ex) {
                DacsClientFrame.logger.severe(ex.getMessage());
                //  ex.printStackTrace();
            } finally {
                setDocumentContent(contenttype, sb.toString());
            }
        }
    }.start();
}

From source file:fedroot.dacs.swingdemo.DemoFrame.java

/**
 * Loads contents of the input stream in a separate thread.
 * @param is input stream to be rendered as HTML
 *//*  w w w  .  j a  v  a  2  s. co  m*/
private void loadPage(final String contenttype, final InputStream is) {
    // create a new thread to load the URL from
    final StringBuffer sb = new StringBuffer();
    new Thread() {

        public void run() {

            try {
                // chain the InputStream to a Reader
                Reader r = new InputStreamReader(new BufferedInputStream(is));
                int c;
                while ((c = r.read()) != -1) {
                    sb.append((char) c);
                }
                is.close();
                if (is != null) {
                    // set the HTML on the UI thread
                    SwingUtilities.invokeLater(new Runnable() {

                        public void run() {
                            setDocumentContent(contenttype, sb.toString());
                        }
                    });
                }
            } catch (IOException ex) {
                DemoFrame.logger.severe(ex.getMessage());
                //  ex.printStackTrace();
            } finally {
                setDocumentContent(contenttype, sb.toString());
            }
        }
    }.start();
}

From source file:org.osiam.client.OsiamUserMeTest.java

private User get_expected_user() throws Exception {
    Reader reader = null;
    StringBuilder jsonUser = null;
    User expectedUser;//from www  .ja v  a2 s .  co  m
    try {
        reader = new FileReader("src/test/resources/__files/user_" + USER_ID + ".json");
        jsonUser = new StringBuilder();
        for (int c; (c = reader.read()) != -1;)
            jsonUser.append((char) c);
    } finally {
        try {
            reader.close();
        } catch (Exception e) {
        }
    }

    expectedUser = new ObjectMapper().readValue(jsonUser.toString(), User.class);
    return expectedUser;
}

From source file:com.norconex.importer.handler.filter.AbstractStringFilter.java

@Override
protected final boolean isTextDocumentMatching(String reference, Reader input, ImporterMetadata metadata,
        boolean parsed) throws ImporterHandlerException {

    try {/*w ww. j  ava2  s . c  o  m*/
        // Initial size is half free memory, considering chars take 2 bytes
        StringBuilder b = new StringBuilder((int) (MemoryUtil.getFreeMemory() / STRING_TOTAL_MEMORY_DIVIDER));
        int i;
        while ((i = input.read()) != -1) {
            char ch = (char) i;
            b.append(ch);
            if (b.length() * 2 % READ_CHUNK_SIZE == 0 && isTakingTooMuchMemory(b)) {
                boolean matched = isStringContentMatching(reference, b, metadata, parsed, true);
                BufferUtil.flushBuffer(b, null, true);
                if (matched) {
                    return true;
                }
            }
        }
        if (b.length() > 0) {
            boolean matched = isStringContentMatching(reference, b, metadata, parsed, false);
            BufferUtil.flushBuffer(b, null, false);
            if (matched) {
                return true;
            }
        }
        b.setLength(0);
        b = null;
    } catch (IOException e) {
        throw new ImporterHandlerException("Cannot tag text document.", e);
    }
    return false;
}

From source file:net.metanotion.json.StreamingParser.java

private String lexDigits(final Reader in) throws IOException {
    final StringBuilder sb = new StringBuilder();
    while (true) {
        in.mark(MAX_BUFFER);/*ww w  . j  a  va2  s  . c  om*/
        final int c = in.read();
        if (Character.isDigit(c)) {
            sb.append(Character.toChars(c));
        } else {
            in.reset();
            if (sb.length() == 0) {
                throw new ParserException(EXPECTED_DIGIT);
            }
            return sb.toString();
        }
    }
}

From source file:net.metanotion.json.StreamingParser.java

private Lexeme lexString(final Reader in) throws IOException {
    final StringBuilder sb = new StringBuilder();
    boolean escape = false;
    while (true) {
        final int c = in.read();
        if (c == -1) {
            throw new ParserException("Expected a character instead of end of stream");
        }/*from   w ww .j  a v  a  2  s  .co m*/
        final String cbuf = new String(Character.toChars(c));
        if (("\"".equals(cbuf)) && !escape) {
            return new Lexeme(Token.STRING, StringEscapeUtils.unescapeJson(sb.toString()));
        } else if ("\\".equals(cbuf)) {
            escape = true;
            sb.append(cbuf);
        } else {
            escape = false;
            sb.append(cbuf);
        }
    }
}