Example usage for java.io Reader close

List of usage examples for java.io Reader close

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Introduction

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

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream and releases any system resources associated with it.

Usage

From source file:edu.lternet.pasta.portal.Harvester.java

/**
 *  Reads character data from the <code>Reader</code> provided, using a 
 *  buffered read. Returns data as a <code>StringBufer</code>
 *
 *  @param  reader              <code>Reader</code> object to be read
 *
 *  @param  closeWhenFinished   <code>boolean</code> value to indicate 
 *                              whether Reader should be closed when reading
 *                              finished
 *
 *  @return                     <code>StringBuffer</code> containing  
 *                              characters read from the <code>Reader</code>
 *
 *  @throws IOException if there are problems accessing or using the Reader.
 *//*from w  ww .j  a v  a  2  s  .c om*/
public StringBuffer getAsStringBuffer(Reader reader, boolean closeWhenFinished) throws IOException {
    if (reader == null)
        return null;

    StringBuffer sb = new StringBuffer();

    try {
        char[] buff = new char[4096];
        int numCharsRead;

        while ((numCharsRead = reader.read(buff, 0, buff.length)) != -1) {
            sb.append(buff, 0, numCharsRead);
        }
    } catch (IOException ioe) {
        throw ioe;
    } finally {
        if (closeWhenFinished) {
            try {
                if (reader != null)
                    reader.close();
            } catch (IOException ce) {
                ce.printStackTrace();
            }
        }
    }

    return sb;
}

From source file:com.joliciel.frenchTreebank.search.XmlPatternSearchImpl.java

public void setXmlPatternFile(String xmlPatternFile) {
    try {/*w ww .  j  a  v  a 2  s. co m*/
        StringBuffer fileData = new StringBuffer(1000);
        Reader reader = new UnicodeReader(new FileInputStream(xmlPatternFile), "UTF-8");

        char[] buf = new char[1024];
        int numRead = 0;
        while ((numRead = reader.read(buf)) != -1) {
            String readData = String.valueOf(buf, 0, numRead);
            fileData.append(readData);
            buf = new char[1024];
        }
        reader.close();

        xmlPattern = fileData.toString();
        LOG.debug(xmlPattern);
    } catch (FileNotFoundException e) {
        LogUtils.logError(LOG, e);
        throw new RuntimeException(e);
    } catch (IOException e) {
        LogUtils.logError(LOG, e);
        throw new RuntimeException(e);
    }

}

From source file:facebook4j.internal.http.HttpResponse.java

/**
 * Returns the response body as facebook4j.internal.org.json.JSONArray.<br>
 * Disconnects the internal HttpURLConnection silently.
 *
 * @return response body as facebook4j.internal.org.json.JSONArray
 * @throws FacebookException/*from   ww w . j  a  va2  s  .  co m*/
 */
public JSONArray asJSONArray() throws FacebookException {
    if (jsonArray == null) {
        Reader reader = null;
        try {
            if (responseAsString == null) {
                reader = asReader();
                jsonArray = new JSONArray(new JSONTokener(reader));
            } else {
                jsonArray = new JSONArray(responseAsString);
            }
            if (CONF.isPrettyDebugEnabled()) {
                logger.debug(jsonArray.toString(1));
            } else {
                logger.debug(responseAsString != null ? responseAsString : jsonArray.toString());
            }
        } catch (JSONException jsone) {
            if (logger.isDebugEnabled()) {
                throw new FacebookException(jsone.getMessage() + ":" + this.responseAsString, jsone);
            } else {
                throw new FacebookException(jsone.getMessage(), jsone);
            }
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException ignore) {
                }
            }
            disconnectForcibly();
        }
    }
    return jsonArray;
}

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

/**
 * Test a given feed modifier chain by its (feed) modifier ID.
 * // w w w  . ja  v  a2  s  .com
 * @param id
 * @param uri
 * @param encodingOverride
 * @param userAgent
 * @throws Exception
 * @return List<String, Boolean>
 */
public Map<String, Boolean> testModifier(Integer id, URI uri, String encodingOverride, String userAgent)
        throws Exception {
    WebResolverSettings settings = new WebResolverSettings();
    settings.setMaximumContentLength(maximumContentLength);
    settings.setUserAgent(userAgent);

    Map<String, Boolean> result = new HashMap<String, Boolean>();

    logger.info("Testing feed modifier with ID " + id + " and URI " + uri);

    try {
        Modifier modifier = modifierCache.getFeedModifierById(id);

        if (!Pattern.matches(modifier.getUrlExpression(), uri.toString()))
            throw new Exception("The given testing feed URI is not covered by the modifier expression");

        Reader reader = getContent(uri, encodingOverride, userAgent, null);

        if (reader != null) {
            // Run it through the modifier

            for (ModifierFilter filter : modifier.getFilters()) {
                StringBuffer current = new StringBuffer(), updated = new StringBuffer();

                reader = readerToBuffer(current, reader, false);
                reader = modifierFilterProcessor.process(filter, reader);
                reader = readerToBuffer(updated, reader, false);

                result.put("Filter_" + filter.getId(), !current.toString().equals(updated.toString()));

                reader.close();
            }

            for (ModifierScript script : modifier.getScripts()) {
                StringBuffer current = new StringBuffer(), updated = new StringBuffer();

                reader = readerToBuffer(current, reader, false);
                reader = modifierScriptProcessor.process(script, extractAndClose(reader), uri, settings, false);
                reader = readerToBuffer(updated, reader, false);

                result.put("Script_" + script.getId(), !current.toString().equals(updated.toString()));

                reader.close();
            }
        } else
            throw new Exception("Could not retrieve the result feed content");
    } catch (ScriptException e) {
        throw new Exception("Could not test the given feed: " + e.getMessage(), e);
    } catch (IOException e) {
        throw new Exception("Could not test the given feed: " + e.getMessage(), e);
    }

    return result;
}

From source file:cn.vlabs.umt.common.mail.MessageFormatter.java

private String readTemplate(Locale locale, String templateName) throws TemplateNotFound {
    StringBuffer content = new StringBuffer();
    Reader reader = null;
    String templateFileDir = path;
    try {/* w  w w. ja  va  2 s.  co  m*/
        templateFileDir = path + "/" + locale.toString();
        File f = new File(templateFileDir);
        if (!f.exists()) {
            templateFileDir = path + "/en_US";
        }
        templateFileDir = templateFileDir + "/" + templateName;
        reader = new InputStreamReader(new FileInputStream(templateFileDir), "UTF-8");

        int num = 0;
        while ((num = reader.read(buff)) != -1) {
            content.append(buff, 0, num);
        }
    } catch (FileNotFoundException e) {
        throw new TemplateNotFound(templateFileDir);
    } catch (UnsupportedEncodingException e) {
        log.error("????");
        log.debug("?", e);
    } catch (IOException e) {
        log.error("????");
        log.debug("?", e);
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
                log.debug("??");
            }
        }
    }
    return content.toString();
}

From source file:com.intel.diceros.test.securerandom.DRNGTest.java

private List<Reader> getReaders(String... filenames) {
    String resource = RESOURCES_PREFIX.startsWith("/") ? RESOURCES_PREFIX.substring(1) : RESOURCES_PREFIX;
    Enumeration<URL> urls;
    List<Reader> readers = new ArrayList<Reader>();
    for (String filename : filenames) {
        try {/*from  w  w w. j  av a2 s  .  c om*/
            urls = getClass().getClassLoader().getResources(resource + filename);
        } catch (IOException e) {
            throw new RuntimeException("IOException while obtaining resource: " + resource + filename, e);
        }
        if (urls != null) {
            URL url = null;
            try {
                while (urls.hasMoreElements()) {
                    url = urls.nextElement();
                    InputStream stream = url.openStream();
                    readers.add(new InputStreamReader(stream));
                }
            } catch (IOException e) {
                for (Reader r : readers) {
                    try {
                        r.close();
                    } catch (IOException e1) {
                        // ignore
                    }
                }
                throw new RuntimeException("IOException while opening resource: " + url, e);
            }
        } else {
            throw new RuntimeException("Unable to find the resource: " + resource + filename);
        }
    }
    return readers;
}

From source file:com.ning.billing.recurly.RecurlyClient.java

private String buildUserAgent() {
    final String defaultVersion = "0.0.0";
    final String defaultJavaVersion = "0.0.0";

    try {/*w  ww. j  ava 2 s  . c o  m*/
        final Properties gitRepositoryState = new Properties();
        final URL resourceURL = Resources.getResource(GIT_PROPERTIES_FILE);
        final CharSource charSource = Resources.asCharSource(resourceURL, Charset.forName("UTF-8"));

        Reader reader = null;
        try {
            reader = charSource.openStream();
            gitRepositoryState.load(reader);
        } finally {
            if (reader != null) {
                reader.close();
            }
        }

        final String version = Objects.firstNonNull(getVersionFromGitRepositoryState(gitRepositoryState),
                defaultVersion);
        final String javaVersion = Objects.firstNonNull(StandardSystemProperty.JAVA_VERSION.value(),
                defaultJavaVersion);
        return String.format("KillBill/%s; %s", version, javaVersion);
    } catch (final Exception e) {
        return String.format("KillBill/%s; %s", defaultVersion, defaultJavaVersion);
    }
}

From source file:CsvConverter.java

public CsvConverter(Reader in) {
    String line = "";
    boolean doHeader = true;
    StringTokenizer st = null;/*from ww w.j  av  a2 s.  c om*/

    try {
        BufferedReader br = new BufferedReader(in);

        while ((line = br.readLine()) != null) {
            if (line == null) {
                throw new IOException("Empty Data Source");
            }

            if (doHeader) {
                headers = breakCSVStringApart(line);
                doHeader = false;
            } else {
                String[] rowArray = breakCSVStringApart(line);

                if ((rowArray.length < headers.length) && (rowArray.length < 2)) {
                    //skip as blank row
                } else {
                    data.add(rowArray);
                }
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            in.close();
        } catch (Exception e) {
            ;
        }
    }
}

From source file:com.p000ison.dev.simpleclans2.updater.bamboo.BambooBuild.java

@Override
public void fetchInformation() throws IOException, FailedBuildException {
    Reader reader;
    JSONObject content;//from w w  w.  j a  v a  2  s.co m

    String latestBuild = updateType == UpdateType.LATEST ? String.format(LATEST_BUILD, job)
            : String.format(LATEST_BUILD_BY_LABEL, job, updateType.toString());
    try {
        reader = connect(latestBuild);
    } catch (FileNotFoundException e) {
        Logging.debug("No build found in this channel!");
        return;
    }
    content = parseJSON(reader);
    JSONObject results = (JSONObject) content.get("results");
    JSONArray result = (JSONArray) results.get("result");
    if (result.isEmpty()) {
        Logging.debug("No build found in this channel!");
        return;
    }

    JSONObject firstResult = (JSONObject) result.get(0);
    int buildNumberToFetch = ((Long) firstResult.get("number")).intValue();
    String state = (String) firstResult.get("state");
    if (!state.equalsIgnoreCase("Successful")) {
        throw new FailedBuildException("The last build failed!");
    }

    reader.close();
    reader = connect(String.format(API_FILE, job, buildNumberToFetch));
    content = parseJSON(reader);

    try {
        this.started = DATE_FORMATTER.parse((String) content.get("buildStartedTime")).getTime();
    } catch (ParseException e) {
        e.printStackTrace();
    }
    this.duration = (Long) content.get("buildDuration");

    this.buildNumber = ((Long) content.get("number")).intValue();
    this.commitId = (String) content.get("vcsRevisionKey");

    JSONArray changes = (JSONArray) ((JSONObject) content.get("changes")).get("change");

    if (!changes.isEmpty()) {
        JSONObject change = (JSONObject) changes.get(0);
        pusher = (String) change.get("userName");
    }

    reader.close();
}

From source file:com.jakewharton.DiskLruCacheTest.java

private String readFile(File file) throws Exception {
    Reader reader = new FileReader(file);
    StringWriter writer = new StringWriter();
    char[] buffer = new char[1024];
    int count;/*from w  w  w . j av a2  s  . c o  m*/
    while ((count = reader.read(buffer)) != -1) {
        writer.write(buffer, 0, count);
    }
    reader.close();
    return writer.toString();
}