Example usage for java.io InputStreamReader read

Introduction

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

Prototype

public int read() throws IOException

Source Link

Document

Reads a single character.

Usage

From source file:com.aliyun.odps.ship.DShip.java

protected static void showHelp(String filename) throws IOException {

    InputStream ins = DShip.class.getResourceAsStream("/" + filename);
    InputStreamReader reader = new InputStreamReader(ins, "utf-8");
    int c = reader.read();
    while (c != -1) {
        System.out.print((char) c);
        c = reader.read();//ww  w .java  2s.  c om
    }
    reader.close();
}

From source file:at.jku.rdfstats.hist.builder.HistogramCodec.java

public static String readString(ByteArrayInputStream stream) {
    try {//from  www. java2 s.  c o  m
        int next;
        String s;
        StringBuilder sb = new StringBuilder();
        stream.mark(0);
        InputStreamReader in = new InputStreamReader(stream);

        while (true) {
            next = in.read();
            if (next < 0 || (char) next == END_OF_STRING) {
                s = sb.toString();
                break;
            } else if ((char) next == EMPTY_STRING) {
                s = "";
                break;
            } else
                sb.append((char) next);
        }

        stream.reset();
        stream.skip(s.length() + 1);
        return s;
    } catch (IOException e) {
        throw new RuntimeException("Unexpected error: cannot read String from ByteArrayOutputStream.", e);
    }
}

From source file:edu.illinois.cs.cogcomp.wikifier.utils.io.InFile.java

public static String readFileText(String file, String encoding) throws IOException {
     File f = new File(file);
     InputStreamReader isr = new InputStreamReader(new FileInputStream(f), encoding);
     System.out.println("character encoding = " + isr.getEncoding());
     int c;/*  www  .ja v  a 2  s. c  o m*/
     StringBuffer res = new StringBuffer();
     while ((c = isr.read()) != -1) {
         res.append((char) c);
     }
     isr.close();
     return res.toString();
 }

From source file:com.panet.imeta.core.vfs.KettleVFS.java

/**
 * Read a text file (like an XML document).  WARNING DO NOT USE FOR DATA FILES.
 * //  w  ww .j av a 2  s . c o m
 * @param vfsFilename the filename or URL to read from
 * @param charSetName the character set of the string (UTF-8, ISO8859-1, etc)
 * @return The content of the file as a String
 * @throws IOException
 */
public static String getTextFileContent(String vfsFilename, String charSetName) throws IOException {
    InputStream inputStream = getInputStream(vfsFilename);
    InputStreamReader reader = new InputStreamReader(inputStream, charSetName);
    int c;
    StringBuffer stringBuffer = new StringBuffer();
    while ((c = reader.read()) != -1)
        stringBuffer.append((char) c);
    reader.close();
    inputStream.close();

    return stringBuffer.toString();
}

From source file:be.ibridge.kettle.trans.step.getfilenames.GetFileNames.java

public static final String getLine(LogWriter log, InputStreamReader reader, String format)
        throws KettleFileException {
    StringBuffer line = new StringBuffer(256);
    int c = 0;//from ww  w .j  a  va 2s.  co m

    try {
        while (c >= 0) {
            c = reader.read();
            if (c == '\n' || c == '\r') {
                if (format.equalsIgnoreCase("DOS")) {
                    c = reader.read(); // skip \n and \r
                    if (c != '\r' && c != '\n') {
                        // make sure its really a linefeed or cariage return
                        // raise an error this is not a DOS file 
                        // so we have pulled a character from the next line
                        throw new KettleFileException(
                                "DOS format was specified but only a single line feed character was found, not 2");
                    }
                }
                return line.toString();
            }
            if (c >= 0)
                line.append((char) c);
        }
    } catch (KettleFileException e) {
        throw e;
    } catch (Exception e) {
        if (line.length() == 0) {
            log.logError("get line", "Exception reading line: " + e.toString());
            return null;
        }
        return line.toString();
    }
    if (line.length() > 0)
        return line.toString();

    return null;
}

From source file:Main.java

/**
 * Read the text from a file//from   ww  w.j a v  a  2 s . co m
 *
 * @param file the file to read text from
 * @return the loaded text
 */
public static String loadTextFromFile(File file) {

    if (file.exists()) {

        InputStreamReader isr = null;
        FileInputStream fis = null;
        try {

            fis = new FileInputStream(file);
            isr = new InputStreamReader(fis, StandardCharsets.UTF_8);

            StringBuilder stringBuilder = new StringBuilder();

            int i;
            while ((i = isr.read()) != -1) {
                stringBuilder.append((char) i);
            }
            return stringBuilder.toString();

        } catch (IOException ignored) {
        } finally {
            if (isr != null) {
                try {
                    isr.close();
                } catch (IOException e) {
                    Log.e(TAG, e.getMessage(), e);
                }
            }
            if (fis != null) {
                try {
                    fis.close();
                } catch (IOException e) {
                    Log.e(TAG, e.getMessage(), e);
                }
            }
        }
    }

    return "";
}

From source file:org.tolven.connectors.passwordstore.PasswordStoreImpl.java

private static char[] toCharArray(byte[] passwordBytes) {
    try {//from  w  w  w.ja  va  2s.  c  o  m
        ByteArrayInputStream bais = new ByteArrayInputStream(passwordBytes);
        InputStreamReader inputStreamReader = null;
        List<Character> characters = new ArrayList<Character>();
        try {
            inputStreamReader = new InputStreamReader(bais, Charset.forName("UTF-8"));
            int c;
            while ((c = inputStreamReader.read()) > -1) {
                characters.add(new Character((char) c));
            }
        } finally {
            inputStreamReader.close();
        }
        char[] passwordAsCharArray = new char[characters.size()];
        for (int i = 0; i < characters.size(); i++) {
            passwordAsCharArray[i] = characters.get(i);
        }
        return passwordAsCharArray;
    } catch (IOException ex) {
        throw new RuntimeException(ex);
    }
}

From source file:com.apporiented.hermesftp.utils.IOUtils.java

/**
 * Reads an arbitrary text resource from the class path.
 * //from w w w . j  a  va  2 s  .  co  m
 * @param name The name of the resource.
 * @param encoding The text encoding.
 * @return The text.
 * @throws IOException Error on accessing the resource.
 */
public static String loadTextResource(String name, String encoding) throws IOException {
    String result = null;
    StringWriter sw = null;
    InputStreamReader isr = null;
    if (encoding == null) {
        encoding = "UTF-8";
    }
    try {
        InputStream is = IOUtils.class.getResourceAsStream(name);
        isr = new InputStreamReader(is, encoding);
        sw = new StringWriter();
        int c;
        while ((c = isr.read()) != -1) {
            sw.write(c);
        }
        result = sw.getBuffer().toString();
    } finally {
        closeGracefully(isr);
        closeGracefully(sw);
    }
    return result;
}

From source file:org.wso2.carbon.automation.test.utils.common.FileManager.java

public static void copyFile(File sourceFile, String destinationPath) throws IOException {
    File destinationFile = new File(destinationPath);

    InputStreamReader in = new InputStreamReader(new FileInputStream(sourceFile), Charset.defaultCharset());

    BufferedWriter out = new BufferedWriter(
            new OutputStreamWriter(new FileOutputStream(destinationFile), Charset.defaultCharset()));
    int c;//from   w  ww.j  a v a 2 s  . co m
    try {
        while ((c = in.read()) != -1) {
            out.write(c);
        }
    } finally {
        try {
            in.close();
        } catch (IOException e) {
            //ignore
        }
        try {
            out.close();
        } catch (IOException e) {
            //ignore
        }
    }
}

From source file:org.kie.guvnor.m2repo.backend.server.GuvnorM2Repository.java

public static String loadPOMFromJar(String jarPath) {
    try {/*from  ww  w .  j  a va  2s. c o  m*/
        ZipFile zip = new ZipFile(new File(jarPath));

        for (Enumeration e = zip.entries(); e.hasMoreElements();) {
            ZipEntry entry = (ZipEntry) e.nextElement();

            if (entry.getName().startsWith("META-INF/maven") && entry.getName().endsWith("pom.xml")) {
                InputStream is = zip.getInputStream(entry);

                InputStreamReader isr = new InputStreamReader(is, "UTF-8");
                StringBuilder sb = new StringBuilder();
                for (int c = isr.read(); c != -1; c = isr.read()) {
                    sb.append((char) c);
                }
                return sb.toString();
            }
        }
    } catch (ZipException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    return null;
}