Example usage for java.io InputStreamReader read

List of usage examples for java.io InputStreamReader read

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Introduction

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

Prototype

public int read(java.nio.CharBuffer target) throws IOException

Source Link

Document

Attempts to read characters into the specified character buffer.

Usage

From source file:org.apache.roller.weblogger.config.WebloggerRuntimeConfig.java

/**
 * Get the runtime configuration definitions XML file as a string.
 *
 * This is basically a convenience method for accessing this file.
 * The file itself contains meta-data about what configuration
 * properties we change at runtime via the UI and how to setup
 * the display for editing those properties.
 *//*  ww  w. java 2s . c  o  m*/
public static String getRuntimeConfigDefsAsString() {

    log.debug("Trying to load runtime config defs file");

    try {
        InputStreamReader reader = new InputStreamReader(
                WebloggerConfig.class.getResourceAsStream(runtime_config));
        StringWriter configString = new StringWriter();

        char[] buf = new char[8196];
        int length = 0;
        while ((length = reader.read(buf)) > 0)
            configString.write(buf, 0, length);

        reader.close();

        return configString.toString();
    } catch (Exception e) {
        log.error("Error loading runtime config defs file", e);
    }

    return "";
}

From source file:io.fabric8.insight.log.support.LogQuerySupport.java

protected static String loadString(URL url) throws IOException {
    InputStream is = url.openStream();
    if (is == null) {
        return null;
    }//  w  ww.j a  v  a  2s  .c om
    try {
        InputStreamReader reader = new InputStreamReader(is);
        StringWriter writer = new StringWriter();
        final char[] buffer = new char[4096];
        int n;
        while (-1 != (n = reader.read(buffer))) {
            writer.write(buffer, 0, n);
        }
        writer.flush();
        return writer.toString();
    } finally {
        is.close();
    }
}

From source file:ch.entwine.weblounge.common.impl.util.TemplateUtils.java

/**
 * Loads the resource identified by concatenating the package name from
 * <code>clazz</code> and <code>path</code> from the classpath.
 * /* w w w.  ja  v  a 2  s  .  co m*/
 * @param path
 *          the path relative to the package name of <code>clazz</code>
 * @param clazz
 *          the class
 * @param language
 *          the requested language
 * @param site
 *          the associated site
 * @return the resource
 */
public static String load(String path, Class<?> clazz, Language language, Site site) {
    if (path == null)
        throw new IllegalArgumentException("path cannot be null");
    if (clazz == null)
        throw new IllegalArgumentException("clazz cannot be null");

    String pkg = null;
    if (!path.startsWith("/"))
        pkg = "/" + clazz.getPackage().getName().replace('.', '/');

    // Try to find the template in any of the usual languages
    InputStream is = null;
    String[] templates = null;
    if (site != null)
        templates = LanguageUtils.getLanguageVariants(path, language, site.getDefaultLanguage());
    else
        templates = LanguageUtils.getLanguageVariants(path, language);
    for (String template : templates) {
        String pathToTemplate = pkg != null ? UrlUtils.concat(pkg, template) : template;
        is = clazz.getResourceAsStream(pathToTemplate);
        if (is != null) {
            path = template;
            break;
        }
    }

    // If is is still null, then the template doesn't exist.
    if (is == null) {
        logger.error("Template " + path + " not found in any language");
        return null;
    }

    // Load the template
    InputStreamReader isr = null;
    StringBuffer buf = new StringBuffer();
    try {
        logger.debug("Loading " + path);
        isr = new InputStreamReader(is, Charset.forName("UTF-8"));
        char[] chars = new char[1024];
        int count = 0;
        while ((count = isr.read(chars)) > 0) {
            for (int i = 0; i < count; i++)
                buf.append(chars[i]);
        }
        return buf.toString();
    } catch (Throwable t) {
        logger.warn("Error reading " + path + ": " + t.getMessage());
    } finally {
        IOUtils.closeQuietly(isr);
        IOUtils.closeQuietly(is);
    }
    logger.debug("Template " + path + " loaded");
    return null;
}

From source file:ch.entwine.weblounge.common.impl.util.TemplateUtils.java

/**
 * Loads the resource from the classpath. The <code>path</code> denotes the
 * path to the resource to load, e. g.//from  www.j  a  v a2  s  .co  m
 * <code>/ch/o2it/weblounge/test.txt</code>.
 * 
 * @param path
 *          the resource path
 * @return the resource
 */
public static String load(String path) {
    InputStream is = TemplateUtils.class.getResourceAsStream(path);
    InputStreamReader isr = null;
    StringBuffer buf = new StringBuffer();
    if (is != null) {
        try {
            logger.debug("Loading " + path);
            isr = new InputStreamReader(is, Charset.forName("UTF-8"));
            char[] chars = new char[1024];
            int count = 0;
            while ((count = isr.read(chars)) > 0) {
                for (int i = 0; i < count; i++)
                    buf.append(chars[i]);
            }
            return buf.toString();
        } catch (Throwable t) {
            logger.warn("Error reading " + path + ": " + t.getMessage());
        } finally {
            IOUtils.closeQuietly(isr);
            IOUtils.closeQuietly(is);
        }
        logger.debug("Editor support (javascript) loaded");
    } else {
        logger.error("Repository item not found: " + path);
    }
    return null;
}

From source file:ch.entwine.weblounge.common.impl.util.TemplateUtils.java

/**
 * Loads the resource identified by concatenating the package name from
 * <code>clazz</code> and <code>path</code> from the classpath.
 * /*from   w w  w.j a  va  2 s. c  o  m*/
 * @param path
 *          the path relative to the package name of <code>clazz</code>
 * @param clazz
 *          the class
 * @return the resource
 */
public static String load(String path, Class<?> clazz) {
    if (path == null)
        throw new IllegalArgumentException("path cannot be null");
    if (clazz == null)
        throw new IllegalArgumentException("clazz cannot be null");
    String pkg = "/" + clazz.getPackage().getName().replace('.', '/');
    InputStream is = clazz.getResourceAsStream(UrlUtils.concat(pkg, path));
    InputStreamReader isr = null;
    StringBuffer buf = new StringBuffer();
    if (is != null) {
        try {
            logger.debug("Loading " + path);
            isr = new InputStreamReader(is, Charset.forName("UTF-8"));
            char[] chars = new char[1024];
            int count = 0;
            while ((count = isr.read(chars)) > 0) {
                for (int i = 0; i < count; i++)
                    buf.append(chars[i]);
            }
            return buf.toString();
        } catch (Throwable t) {
            logger.warn("Error reading " + path + ": " + t.getMessage());
        } finally {
            IOUtils.closeQuietly(isr);
            IOUtils.closeQuietly(is);
        }
        logger.debug("Editor support (javascript) loaded");
    } else {
        logger.error("Repository item not found: " + path);
    }
    return null;
}

From source file:org.gcaldaemon.core.notifier.GmailNotifier.java

private static final String[] getActiveUsers() {
    HashSet users = new HashSet();
    try {//from  ww w .ja  v  a  2 s. com
        String me = System.getProperty("user.name");
        if (me != null) {
            users.add(me);
        }
    } catch (Exception ignored) {
    }
    try {
        String os = System.getProperty("os.name", "unknown");
        if (commandExecutable && os.toLowerCase().indexOf("windows") != -1) {

            // Execute script
            ProcessBuilder builder = new ProcessBuilder(TASK_COMMAND);
            Process tasklist = builder.start();

            // Read command output
            InputStream in = tasklist.getInputStream();
            QuickWriter buffer = new QuickWriter();
            BufferedInputStream bis = new BufferedInputStream(in);
            InputStreamReader isr = new InputStreamReader(bis);
            char[] chars = new char[1024];
            int len;
            while ((len = isr.read(chars)) != -1) {
                buffer.write(chars, 0, len);
            }

            // Parse output
            String token, out = buffer.toString();
            StringTokenizer lines = new StringTokenizer(out, "\r\n");
            StringTokenizer tokens;
            int i;
            while (lines.hasMoreTokens()) {
                tokens = new StringTokenizer(lines.nextToken(), "\"", false);
                while (tokens.hasMoreTokens()) {
                    token = tokens.nextToken();
                    i = token.indexOf('\\');
                    if (i != -1) {
                        token = token.substring(i + 1);
                        if (token.length() != 0) {
                            users.add(token);
                            break;
                        }
                    }
                }
            }

        }
    } catch (Exception invalidSyntax) {
        commandExecutable = false;
        log.debug(invalidSyntax);
    }
    String[] array = new String[users.size()];
    if (array.length > 0) {
        users.toArray(array);
        if (log.isDebugEnabled()) {
            QuickWriter writer = new QuickWriter(100);
            for (int i = 0; i < array.length; i++) {
                writer.write(array[i]);
                if (i < array.length - 1) {
                    writer.write(", ");
                }
            }
            log.debug("Active users: " + writer.toString());
        }
    }
    return array;
}

From source file:com.cubusmail.mail.text.MessageTextUtil.java

/**
 * Reads a string from given input stream using direct buffering
 * /*  w  w  w.j  a  v  a 2 s .  c o m*/
 * @param inStream
 *            - the input stream
 * @param charset
 *            - the charset
 * @return the <code>String</code> read from input stream
 * @throws IOException
 *             - if an I/O error occurs
 */
public static String readStream(final InputStream inStream, final String charset) throws IOException {

    InputStreamReader isr = null;
    try {
        int count = 0;
        final char[] c = new char[BUFSIZE];
        isr = new InputStreamReader(inStream, charset);
        if ((count = isr.read(c)) > 0) {
            final StringBuilder sb = new StringBuilder(STRBLD_SIZE);
            do {
                sb.append(c, 0, count);
            } while ((count = isr.read(c)) > 0);
            return sb.toString();
        }
        return "";
    } catch (final UnsupportedEncodingException e) {
        log.error("Unsupported encoding in a message detected and monitored.", e);
        return "";
    } finally {
        if (null != isr) {
            try {
                isr.close();
            } catch (final IOException e) {
                log.error(e.getLocalizedMessage(), e);
            }
        }
    }
}

From source file:edu.stanford.epad.epadws.xnat.XNATSessionOperations.java

private static XNATSessionResponse getXNATSessionID(String username, String password) {
    String xnatSessionURL = buildXNATSessionURL();
    HttpClient client = new HttpClient();
    PostMethod method = new PostMethod(xnatSessionURL);
    String authString = buildAuthorizationString(username, password);
    XNATSessionResponse xnatSessionResponse;
    int xnatStatusCode;

    try {/*from   w ww .  j av  a  2  s.  co m*/
        log.info("Invoking XNAT session service for user " + username + " at " + xnatSessionURL);
        method.setRequestHeader("Authorization", "Basic " + authString);
        xnatStatusCode = client.executeMethod(method);
        log.info("Successfully invoked XNAT session service for user " + username + "; status code = "
                + xnatStatusCode);
    } catch (IOException e) {
        log.warning("Error calling XNAT session service for user " + username, e);
        xnatStatusCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
    }

    try {
        if (xnatStatusCode == HttpServletResponse.SC_OK) {
            try {
                StringBuilder sb = new StringBuilder();
                InputStreamReader isr = null;
                try {
                    isr = new InputStreamReader(method.getResponseBodyAsStream());
                    int read = 0;
                    char[] chars = new char[128];
                    while ((read = isr.read(chars)) > 0) {
                        sb.append(chars, 0, read);
                    }
                } finally {
                    IOUtils.closeQuietly(isr);
                }
                String jsessionID = sb.toString();
                xnatSessionResponse = new XNATSessionResponse(HttpServletResponse.SC_OK, jsessionID);
                log.debug("Session ID " + jsessionID + " generated for user " + username); // TODO temp
            } catch (IOException e) {
                log.warning(LOGIN_EXCEPTION_MESSAGE, e);
                xnatSessionResponse = new XNATSessionResponse(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                        LOGIN_EXCEPTION_MESSAGE + ": " + e.getMessage());
            }
        } else if (xnatStatusCode == HttpServletResponse.SC_UNAUTHORIZED) {
            log.warning(XNAT_UNAUTHORIZED_MESSAGE);
            xnatSessionResponse = new XNATSessionResponse(xnatStatusCode, XNAT_UNAUTHORIZED_MESSAGE);
        } else {
            log.warning(XNAT_LOGIN_ERROR_MESSAGE + "; XNAT status code = " + xnatStatusCode);
            xnatSessionResponse = new XNATSessionResponse(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
                    XNAT_LOGIN_ERROR_MESSAGE + "; XNAT status code = " + xnatStatusCode);
        }
    } finally {
        method.releaseConnection();
    }
    return xnatSessionResponse;
}

From source file:org.opencastproject.util.IoSupport.java

/**
 * Extracts the content from the given input stream. This method is intended to faciliate handling of processes that
 * have error, input and output streams.
 *
 * @param is/*from   w w w .j  a  v a2  s .  com*/
 *         the input stream
 * @return the stream content
 */
public static String getOutput(InputStream is) {
    InputStreamReader bis = new InputStreamReader(is);
    StringBuffer outputMsg = new StringBuffer();
    char[] chars = new char[1024];
    try {
        int len = 0;
        try {
            while ((len = bis.read(chars)) > 0) {
                outputMsg.append(chars, 0, len);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    } finally {
        if (bis != null)
            try {
                bis.close();
            } catch (IOException e) {
            }
    }
    return outputMsg.toString();
}

From source file:och.util.FileUtil.java

public static String readFile(FileInputStream fis, String charset)
        throws UnsupportedEncodingException, IOException {
    InputStreamReader r = null;
    OutputStreamWriter w = null;/*from  w w  w  . j  ava2 s .  c om*/

    try {
        r = new InputStreamReader(fis, charset);
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        w = new OutputStreamWriter(out, charset);
        char[] buff = new char[1024 * 4];
        int i;
        while ((i = r.read(buff)) > 0) {
            w.write(buff, 0, i);
        }
        w.flush();
        return out.toString(charset);
    } finally {
        if (r != null)
            try {
                r.close();
            } catch (Exception e) {
                e.printStackTrace();
            }

        if (w != null)
            try {
                w.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
    }
}