Example usage for java.io Reader read

List of usage examples for java.io Reader read

  1. HOME
  2. Java
  3. java
  4. java.io.*
  5. Reader
  6. read

Introduction

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

Prototype

public int read(char cbuf[]) throws IOException

Source Link

Document

Reads characters into an array.

Usage

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

private Lexeme maybeFalse(final Reader in) throws IOException {
    final char[] cbuf = new char[BUFFER_LEN4];
    final int ct = in.read(cbuf);
    if ((ct == BUFFER_LEN4) && ("alse".equals(new String(cbuf)))) {
        return new Lexeme(Token.BOOL, false);
    } else {/*ww  w .  j av  a 2 s  .  c  o m*/
        throw new ParserException("Expected 'false', instead found: f" + new String(cbuf));
    }
}

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

private Lexeme maybeNull(final Reader in) throws IOException {
    final char[] cbuf = new char[BUFFER_LEN3];
    final int ct = in.read(cbuf);
    if ((ct == BUFFER_LEN3) && ("ull".equals(new String(cbuf)))) {
        return NULL;
    } else {//  w ww.ja va2  s . c om
        throw new ParserException("Expected 'null', instead found: n" + new String(cbuf));
    }
}

From source file:cz.lbenda.dataman.rc.DatamanHeadless.java

public void launch(@Nonnull CommandLine cmd) {
    DbConfig dbConfig = DbConfigFactory.getConfiguration(cmd.getOptionValue("c"));
    if (dbConfig == null) {
        LOG.error("Configuration with name " + cmd.getOptionValue("c") + " not exist.");
        System.exit(1);//w w w  .j ava2 s.  c o m
    }

    try {
        List<FileObject> scripts = scripts(cmd);
        List<FileObject> outputs = outputs(cmd);
        if (scripts.size() == 0) {
            LOG.error("The scripts isn't defined");
            System.exit(3);
        } else {
            SQLSExecutorConsumerClass sqlEditorController = new SQLSExecutorConsumerClass(!cmd.hasOption("nos"),
                    format(cmd));
            SQLSExecutor executor = new SQLSExecutor(dbConfig, sqlEditorController, null);
            dbConfig.getConnectionProvider().getConnection();
            int i = 0;
            for (FileObject file : scripts) {
                if (outputs.size() > i) {
                    sqlEditorController.setOutputFile(outputs.get(i));
                } else {
                    sqlEditorController.setOutputFile(null);
                }
                i++;
                try {
                    InputStream is = file.getContent().getInputStream();
                    Reader reader = new InputStreamReader(is);
                    char[] buff = new char[262144];
                    int l;
                    String rest = "";
                    while ((l = reader.read(buff)) != -1) {
                        String str = rest + new String(buff, 0, l);
                        String[] strs = SQLSExecutor.splitSQLS(str);
                        if (strs.length == 1) {
                            rest = str;
                        } else {
                            rest = strs[strs.length - 1];
                            if (!str.endsWith("\n") && rest.endsWith("\n")) {
                                rest = rest.substring(0, rest.length() - 1);
                                rest = str.substring(str.lastIndexOf(rest), str.length());
                            }
                            String[] sqls = new String[strs.length - 1];
                            System.arraycopy(strs, 0, sqls, 0, strs.length - 1);
                            executor.executeBlocking(sqls);
                        }
                    }
                    executor.executeBlocking(SQLSExecutor.splitSQLS(rest));
                } catch (IOException e) {
                    LOG.error("Problem with read script file", e);
                    System.exit(4);
                }
            }
        }
    } catch (FileSystemException e) {
        LOG.error("Problem with read script data", e);
        System.exit(2);
    }
}

From source file:com.plusub.lib.other.LruDiskCache.java

private static String readFully(Reader reader) throws IOException {
    StringWriter writer = null;//from   w w w  . j a  v a  2 s .c  o  m
    try {
        writer = new StringWriter();
        char[] buffer = new char[1024];
        int count;
        while ((count = reader.read(buffer)) != -1) {
            writer.write(buffer, 0, count);
        }
        return writer.toString();
    } finally {
        try {
            reader.close();
            writer.close();
        } catch (Throwable e) {
        }
    }
}

From source file:onl.area51.httpd.action.Response.java

default Response copy(Reader r) throws IOException {
    char b[] = new char[1024];
    int s = r.read(b);
    while (s > -1) {
        write(b, 0, s);/*from  w  w  w .ja  v  a2s .  co m*/
        s = r.read(b);
    }
    return this;
}

From source file:com.microsoft.tfs.core.internal.db.DBStatement.java

private String clobToString(final Clob clob) throws SQLException, IOException {
    final StringWriter writer = new StringWriter();
    final Reader reader = clob.getCharacterStream();
    final char[] buf = new char[2048];
    int len;//w ww . j a  v  a  2 s  .  com
    while ((len = reader.read(buf)) != -1) {
        writer.write(buf, 0, len);
    }

    return writer.toString();
}

From source file:com.icesoft.applications.faces.auctionMonitor.beans.ReadmeBean.java

/**
 * Method to load a default readme file (at readme.html) The file will be
 * read in and converted to a displayable string
 *
 * @return boolean true on successful read
 *///www.  j av a2s . c  o m
private boolean loadDefaultReadmeFile() {
    try {
        Reader readmeReader = new InputStreamReader(this.getClass().getClassLoader()
                .getResourceAsStream("com/icesoft/applications/faces/auctionMonitor/readme.html"));
        StringWriter readmeWriter = new StringWriter();

        char[] buf = new char[2000];
        int len;
        try {
            while ((len = readmeReader.read(buf)) > -1) {
                readmeWriter.write(buf, 0, len);
            }
        } catch (IOException e) {
            if (log.isErrorEnabled()) {
                log.error("Something went wrong while parsing the readme file, likely because of " + e);
            }
        }
        // clean up the stream reader
        readmeReader.close();

        this.readmeText = readmeWriter.toString();

        // clean up the writer
        readmeWriter.close();

        return true;

    } catch (Exception e) {
        if (log.isWarnEnabled()) {
            log.warn("General error while attempting to load the readme file, cause may be " + e);
        }
    }

    return false;
}

From source file:com.freedomotic.helpers.HttpHelper.java

/**
 *
 * @return @throws IOException if the URL format is wrong or if cannot read
 * from source//from  w  w  w .  j  av  a2s  .  c  om
 */
private String doGet(String url, String username, String password) throws IOException {

    Authenticator.setDefault(new MyAuthenticator(username, password));

    DefaultHttpClient client = new DefaultHttpClient(httpParams);
    String decodedUrl;
    HttpGet request = null;
    try {
        decodedUrl = URLDecoder.decode(url, "UTF-8");
        request = new HttpGet(new URL(decodedUrl).toURI());
    } catch (URISyntaxException | MalformedURLException ex) {
        throw new IOException("The URL " + url + "' is not properly formatted: " + ex.getMessage(), ex);
    }
    HttpResponse response = client.execute(request);

    Reader reader = null;
    try {
        reader = new InputStreamReader(response.getEntity().getContent());

        StringBuilder buffer = new StringBuilder();
        int read;
        char[] cbuf = new char[1024];
        while ((read = reader.read(cbuf)) != -1) {
            buffer.append(cbuf, 0, read);
        }
        return buffer.toString();

    } finally {
        IOUtils.closeQuietly(reader);
    }
}

From source file:com.yahoo.glimmer.util.BySubjectRecordTest.java

@Test
public void relationsReaderTest() throws IOException {
    String expecdedRelationsString = RELATION_1_1 + '\t' + RELATION_1_2 + '\t' + RELATION_1_1 + '\t'
            + RELATION_1_2 + '\t';
    Reader relationsReader = record.getRelationsReader();

    // No relations..
    char[] buffer = new char[4096];
    int charsRead = relationsReader.read(buffer);
    assertEquals(-1, charsRead);/*from   w  w  w . j  a  va 2  s  .co m*/
    assertTrue(Arrays.equals(new char[4096], buffer));

    record.setId(55);
    record.setSubject(SUBJECT_1);
    record.addRelation(RELATION_1_1);
    record.addRelation(RELATION_1_2);
    record.addRelation(RELATION_1_1);
    record.addRelation(RELATION_1_2);

    relationsReader = record.getRelationsReader();
    charsRead = relationsReader.read(buffer);
    assertEquals(144, charsRead);
    assertEquals(expecdedRelationsString, new String(buffer, 0, charsRead));

    // Reading with different buffer sizes.
    StringBuilder sb = new StringBuilder();
    charsRead = Integer.MAX_VALUE;
    for (int bufferSize = 1; bufferSize < (expecdedRelationsString.length() + 10); bufferSize++) {
        buffer = new char[bufferSize];

        relationsReader = record.getRelationsReader();
        for (;;) {
            charsRead = relationsReader.read(buffer);
            if (charsRead == -1) {
                break;
            }

            sb.append(buffer, 0, charsRead);

            if (charsRead < bufferSize) {
                break;
            }
        }

        assertEquals(expecdedRelationsString, sb.toString());

        sb.setLength(0);
    }
}

From source file:com.bigdata.gom.RemoteGOMTestCase.java

protected void print(final URL n3) throws IOException {
    if (log.isInfoEnabled()) {
        InputStream in = n3.openConnection().getInputStream();
        Reader reader = new InputStreamReader(in);
        try {//w ww  . jav a2s  . c o  m
            char[] buf = new char[256];
            int rdlen = 0;
            while ((rdlen = reader.read(buf)) > -1) {
                if (rdlen == 256)
                    System.out.print(buf);
                else
                    System.out.print(new String(buf, 0, rdlen));
            }
        } finally {
            reader.close();
        }
    }
}