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:it.cloudicaro.disit.kb.rdf.HttpUtil.java

public static String get(URL url, String accept, String user, String passwd) throws Exception {
    //System.out.println("GET "+url);
    HttpClient client = HttpClients.createDefault();
    HttpGet request = new HttpGet(url.toURI());
    if (accept != null)
        request.addHeader("Accept", accept);

    HttpClientContext context = HttpClientContext.create();
    if (user != null && passwd != null) {
        CredentialsProvider credsProvider = new BasicCredentialsProvider();
        credsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(user, passwd));

        /*// Create AuthCache instance
        AuthCache authCache = new BasicAuthCache();
        // Generate BASIC scheme object and add it to the local auth cache
        BasicScheme basicAuth = new BasicScheme();
        authCache.put(targetHost, basicAuth);*/

        // Add AuthCache to the execution context
        context.setCredentialsProvider(credsProvider);
    }/*from ww  w  .j  a v  a  2s.com*/
    HttpResponse response = client.execute(request, context);

    StatusLine s = response.getStatusLine();
    int code = s.getStatusCode();
    //System.out.println(code);
    if (code != 200)
        throw new Exception(
                "failed access to " + url.toString() + " code: " + code + " " + s.getReasonPhrase());

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

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

        return sb.toString();
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

From source file:com.zotoh.core.io.StreamUte.java

/**
 * @param r//from   w w  w .  j a va 2  s  . c  om
 * @return
 */
public static Reader close(Reader r) {
    try {
        if (r != null)
            r.close();
    } catch (Throwable t) {
    }
    return null;
}

From source file:edu.mayo.cts2.uriresolver.dao.DAOUtiltities.java

public static boolean importMySQLDataToH2Database(DataSource ds) {
    JdbcTemplate jdbcTemplateObject;//from   w ww  .j a  va  2s  . c om
    jdbcTemplateObject = new JdbcTemplate(ds);

    StringBuffer sqlBuffer = new StringBuffer();
    BufferedReader bufferedReader = null;
    Reader reader = null;

    try {
        InputStream in = ResolveURI.class.getResourceAsStream("/uriresolver.sql");
        reader = new InputStreamReader(in, "UTF-8");
        bufferedReader = new BufferedReader(reader);
        while (bufferedReader.ready()) {
            String line = bufferedReader.readLine().trim();
            if (isSQLCode(line)) {
                sqlBuffer.append(convertToH2(line));
            }
        }
        bufferedReader.close();
        reader.close();
    } catch (IOException e) {
        logger.error("Error while importing data to in memory database: " + e.getMessage());
        return false;
    } finally {
        try {
            if (bufferedReader != null) {
                bufferedReader.close();
            }
            if (reader != null) {
                reader.close();
            }
        } catch (IOException ex) {
            logger.error("Error while closing access to in memory database: " + ex.getMessage());
            return true;
        }
    }

    jdbcTemplateObject.execute(sqlBuffer.toString());
    return true;
}

From source file:com.calebgomer.roadkill_reporter.AsyncReporter.java

private static String _getResponseBody(final HttpEntity entity) throws IOException, ParseException {
    if (entity == null) {
        throw new IllegalArgumentException("HTTP entity may not be null");
    }//  ww w.j a  v a2s .c o m
    InputStream instream = entity.getContent();
    if (instream == null) {
        return "";
    }
    if (entity.getContentLength() > Integer.MAX_VALUE) {
        throw new IllegalArgumentException("HTTP entity too large to be buffered in memory");
    }
    String charset = getContentCharSet(entity);
    if (charset == null) {
        charset = HTTP.DEFAULT_CONTENT_CHARSET;
    }
    Reader reader = new InputStreamReader(instream, charset);
    StringBuilder buffer = new StringBuilder();
    try {
        char[] tmp = new char[1024];
        int l;
        while ((l = reader.read(tmp)) != -1) {
            buffer.append(tmp, 0, l);
        }
    } finally {
        reader.close();
    }
    return buffer.toString();
}

From source file:com.github.magicsky.sya.checkers.TestSourceReader.java

public static int getLineNumber(int offset, Path fullPath) throws Exception {
    IFile file = ResourcesPlugin.getWorkspace().getRoot().getFile(fullPath);
    Reader reader = new BufferedReader(new InputStreamReader(file.getContents(), file.getCharset()));
    try {/*w  w  w . j  a va2s.  c  o  m*/
        int line = 1;
        for (int i = 0; i < offset; i++) {
            int c = reader.read();
            Assert.assertTrue(c >= 0);
            if (c == '\n')
                line++;
        }
        return line;
    } finally {
        reader.close();
    }
}

From source file:Main.java

/**
 * @param r Will be read and closed/*from w ww . ja  va2s  .com*/
 * @return The contents of input
 */
public static String read(Reader r) {
    try {
        BufferedReader reader = r instanceof BufferedReader ? (BufferedReader) r : new BufferedReader(r);
        final int bufSize = 8192; // this is the default BufferredReader
        // buffer size
        StringBuilder sb = new StringBuilder(bufSize);
        char[] cbuf = new char[bufSize];
        while (true) {
            int chars = reader.read(cbuf);
            if (chars == -1)
                break;
            sb.append(cbuf, 0, chars);
        }
        return sb.toString();
    } catch (IOException e) {
        throw new RuntimeException(e);
    } finally {
        try {
            r.close();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
}

From source file:org.crazydog.util.spring.FileCopyUtils.java

/**
 * Copy the contents of the given Reader to the given Writer.
 * Closes both when done./*from  w w w . ja va 2 s  .co  m*/
 * @param in the Reader to copy from
 * @param out the Writer to copy to
 * @return the number of characters copied
 * @throws IOException in case of I/O errors
 */
public static int copy(Reader in, Writer out) throws IOException {
    org.springframework.util.Assert.notNull(in, "No Reader specified");
    org.springframework.util.Assert.notNull(out, "No Writer specified");
    try {
        int byteCount = 0;
        char[] buffer = new char[BUFFER_SIZE];
        int bytesRead = -1;
        while ((bytesRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
            byteCount += bytesRead;
        }
        out.flush();
        return byteCount;
    } finally {
        try {
            in.close();
        } catch (IOException ex) {
        }
        try {
            out.close();
        } catch (IOException ex) {
        }
    }
}

From source file:com.mbeddr.pluginmanager.com.intellij.ide.plugins.RepositoryHelper.java

private static List<IdeaPluginDescriptor> parsePluginList(@NotNull Reader reader) throws IOException {
    try {/* w  w  w . j  av a2  s .  c  o m*/
        SAXParser parser = SAXParserFactory.newInstance().newSAXParser();
        RepositoryContentHandler handler = new RepositoryContentHandler();
        parser.parse(new InputSource(reader), handler);
        return handler.getPluginsList();
    } catch (ParserConfigurationException e) {
        throw new IOException(e);
    } catch (SAXException e) {
        throw new IOException(e);
    } finally {
        reader.close();
    }
}

From source file:com.jims.oauth2.common.utils.OAuthUtils.java

/**
 * Get the entity content as a String, using the provided default character set
 * if none is found in the entity./*w ww .j  a v a2  s  .co  m*/
 * If defaultCharset is null, the default "UTF-8" is used.
 *
 * @param is             input stream to be saved as string
 * @param defaultCharset character set to be applied if none found in the entity
 * @return the entity content as a String
 * @throws IllegalArgumentException if entity is null or if content length > Integer.MAX_VALUE
 * @throws java.io.IOException              if an error occurs reading the input stream
 */
public static String toString(final InputStream is, final String defaultCharset) throws IOException {
    if (is == null) {
        throw new IllegalArgumentException("InputStream may not be null");
    }

    String charset = defaultCharset;
    if (charset == null) {
        charset = DEFAULT_CONTENT_CHARSET;
    }
    Reader reader = new InputStreamReader(is, charset);
    StringBuilder sb = new StringBuilder();
    int l;
    try {
        char[] tmp = new char[4096];
        while ((l = reader.read(tmp)) != -1) {
            sb.append(tmp, 0, l);
        }
    } finally {
        reader.close();
    }
    return sb.toString();
}

From source file:com.github.sdbg.debug.core.internal.sourcemaps.SourceMap.java

public static SourceMap createFrom(IStorage storage) throws IOException, CoreException {
    Reader reader;
    if (storage instanceof IFile) {
        reader = new InputStreamReader(storage.getContents(), ((IFile) storage).getCharset());
    } else {//from w w  w. j av a2s.c  o m
        reader = new InputStreamReader(storage.getContents());
    }

    try {
        String contents = Streams.loadAndClose(reader);

        return createFrom(storage.getFullPath(), contents);
    } catch (JSONException e) {
        throw new IOException(e);
    } finally {
        reader.close();
    }
}