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() throws IOException

Source Link

Document

Reads a single character.

Usage

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

/**
 * Test the modifier with asExpression = true, when applied to actual sample content.
 * //from  w  w  w  .  jav a 2 s .  c o m
 * @throws IOException
 */
@Test
public void testExpressionFromFile() throws IOException {
    String fileContent = IOUtils.toString(new FileInputStream("support/examples/yomiuri.html"), "Shift_JIS");

    ModifierFilterProcessor processor = new ModifierFilterProcessor();
    ModifierFilter modifierFilter = new ModifierFilter();

    modifierFilter.setId(-1);
    modifierFilter.setModifierId(-1);
    modifierFilter.setFragmentStart("<body [^>]*>");
    modifierFilter.setFragmentEnd("<!--// article_start //-->");
    modifierFilter.setIsExpression(true);

    Reader result = processor.process(modifierFilter, new StringReader(fileContent));

    StringBuffer buffer = new StringBuffer();

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

    // Expected result

    IOUtils.write(buffer, new FileOutputStream("support/examples/yomiuri.actual.html"), "Shift_JIS");

    assertEquals(buffer.toString(),
            IOUtils.toString(new FileInputStream("support/examples/yomiuri.expected.html"), "Shift_JIS"));
}

From source file:com.streamsets.pipeline.lib.csv.CsvParser.java

private long skipLines(Reader reader, int lines) throws IOException {
    int count = 0;
    int skipped = 0;
    while (skipped < lines) {
        int c = reader.read();
        if (c == -1) {
            throw new IOException(Utils.format("Could not skip '{}' lines, reached EOF", lines));
        }// w  w w.j a  va2 s. c o m
        // this is enough to handle \n and \r\n EOL files
        if (c == '\n') {
            skipped++;
        }
        count++;
    }
    return count;
}

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

/**
 * Test the modifier filter asExpression = false parser.
 * //w  ww. j a v a 2  s .  com
 * @throws IOException
 */
@Test
public void testStaticFilter() throws IOException {
    ModifierFilterProcessor processor = new ModifierFilterProcessor();

    ModifierFilter modifierFilter = new ModifierFilter();

    modifierFilter.setId(-1);
    modifierFilter.setModifierId(-1);
    modifierFilter.setFragmentStart("<foo>");
    modifierFilter.setFragmentEnd("</foo>");
    modifierFilter.setIsExpression(false);

    Reader result = processor.process(modifierFilter, new StringReader("abc<foo>def</foo>ghi"));

    StringBuffer buffer = new StringBuffer();

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

    assertEquals(buffer.toString(), "abc<foo></foo>ghi");
}

From source file:io.sqp.core.jackson.JacksonMessageDecoder.java

@Override
public SqpMessage decode(Reader message) throws DecodingException {
    // TODO: check if we need to close the Reader
    // pass a "ValueReader" since we don't have dynamic type dispatch
    try {/*from  ww  w  .  java2 s. co m*/
        MessageType type = MessageType.fromId((char) message.read());
        return decode(type, DataFormat.Text, (mapper, msgClass) -> mapper.readValue(message, msgClass));
    } catch (IOException e) {
        throw new DecodingException("Failed to read the message identifier: " + e.getMessage(), e);
    }
}

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

/**
 * Test the modifier filter asExpression = true parser.
 * /*from  w  w w  .  j a  va2 s  . c o  m*/
 * @throws IOException
 */
@Test
public void testExpressionFilter() throws IOException {
    ModifierFilterProcessor processor = new ModifierFilterProcessor();

    ModifierFilter modifierFilter = new ModifierFilter();

    modifierFilter.setId(-1);
    modifierFilter.setModifierId(-1);
    modifierFilter.setFragmentStart("\\<foo\\>");
    modifierFilter.setFragmentEnd("\\<\\/foo\\>");
    modifierFilter.setIsExpression(true);

    Reader result = processor.process(modifierFilter, new StringReader("abc<foo>def</foo>ghi\n<foo>xy</foo>z"));

    StringBuffer buffer = new StringBuffer();

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

    assertEquals(buffer.toString(), "abc<foo></foo>ghi\n<foo></foo>z");
}

From source file:cn.fintecher.print.web.util.JacksonDecoder.java

@Override
public Object decode(Response response, Type type) throws IOException {
    if (response.status() == 404)
        return Util.emptyValueOf(type);
    if (response.body() == null)
        return null;
    Reader reader = response.body().asReader();
    if (!reader.markSupported()) {
        reader = new BufferedReader(reader, 1);
    }//from w w w .  j a va 2s. c o  m
    try {
        // Read the first byte to see if we have any data
        reader.mark(1);
        if (reader.read() == -1) {
            return null; // Eagerly returning null avoids "No content to map due to end-of-input"
        }
        reader.reset();
        return mapper.readValue(reader, mapper.constructType(type));
    } catch (RuntimeJsonMappingException e) {
        if (e.getCause() != null && e.getCause() instanceof IOException) {
            throw IOException.class.cast(e.getCause());
        }
        throw e;
    }
}

From source file:org.wso2.msf4j.client.codec.MSF4JJacksonDecoder.java

@Override
public Object decode(Response response, Type type) throws IOException, FeignException {
    if (response.body() == null) {
        return null;
    }//from  w  w w  .j  a  va  2 s . com
    Reader reader = response.body().asReader();
    if (!reader.markSupported()) {
        reader = new BufferedReader(reader, 1);
    }
    try {
        // Read the first byte to see if we have any data
        reader.mark(1);
        if (reader.read() == -1) {
            return null; // Eagerly returning null avoids "No content to map due to end-of-input"
        }
        reader.reset();
        return mapper.readValue(reader, mapper.constructType(type));
    } catch (RuntimeJsonMappingException e) {
        Throwable cause = e.getCause();
        if (cause != null && cause instanceof IOException) {
            throw IOException.class.cast(cause);
        }
        throw e;
    }
}

From source file:io.instacount.client.decoders.AbstractInstacountDecoder.java

/**
 * Helper method to construct an instance of {@link Reader} for reading the JSON response from Instacount.
 *
 * @param response//  w w w  .  j  a v a2s .c o  m
 * @return
 * @throws IOException
 */
protected Optional<Reader> constructReader(final Response response) throws IOException {
    Preconditions.checkNotNull(response);
    Preconditions.checkNotNull(response.body());

    Reader reader = response.body().asReader();
    if (!reader.markSupported()) {
        reader = new BufferedReader(reader, 1);
    }
    try {
        // Read the first byte to see if we have any data
        reader.mark(1);
        if (reader.read() == -1) {
            // Eagerly returning null avoids "No content to map due to end-of-input"
            return Optional.absent();
        }
        reader.reset();
    } catch (RuntimeJsonMappingException e) {
        if (e.getCause() != null && e.getCause() instanceof IOException) {
            throw IOException.class.cast(e.getCause());
        }
        throw e;
    }

    return Optional.fromNullable(reader);
}

From source file:com.aoyetech.fee.commons.utils.IOUtils.java

/**
 * Compare the contents of two Readers to determine if they are equal or
 * not./* w w  w . j a  v a2  s  .c  o  m*/
 * <p>
 * This method buffers the input internally using
 * <code>BufferedReader</code> if they are not already buffered.
 * 
 * @param input1 the first reader
 * @param input2 the second reader
 * @return true if the content of the readers are equal or they both don't
 *         exist, false otherwise
 * @throws NullPointerException if either input is null
 * @throws IOException if an I/O error occurs
 * @since Commons IO 1.1
 */
public static boolean contentEquals(Reader input1, Reader input2) throws IOException {
    if (!(input1 instanceof BufferedReader)) {
        input1 = new BufferedReader(input1);
    }
    if (!(input2 instanceof BufferedReader)) {
        input2 = new BufferedReader(input2);
    }

    int ch = input1.read();
    while (-1 != ch) {
        final int ch2 = input2.read();
        if (ch != ch2) {
            return false;
        }
        ch = input1.read();
    }

    final int ch2 = input2.read();
    return (ch2 == -1);
}

From source file:IOUtils.java

/**
 * Compare the contents of two Readers to determine if they are equal or
 * not./*w w  w. java2 s .  c  o  m*/
 * <p>
 * This method buffers the input internally using
 * <code>BufferedReader</code> if they are not already buffered.
 *
 * @param input1  the first reader
 * @param input2  the second reader
 * @return true if the content of the readers are equal or they both don't
 * exist, false otherwise
 * @throws NullPointerException if either input is null
 * @throws IOException if an I/O error occurs
 * @since Commons IO 1.1
 */
public static boolean contentEquals(Reader input1, Reader input2) throws IOException {
    if (!(input1 instanceof BufferedReader)) {
        input1 = new BufferedReader(input1);
    }
    if (!(input2 instanceof BufferedReader)) {
        input2 = new BufferedReader(input2);
    }

    int ch = input1.read();
    while (-1 != ch) {
        int ch2 = input2.read();
        if (ch != ch2) {
            return false;
        }
        ch = input1.read();
    }

    int ch2 = input2.read();
    return (ch2 == -1);
}