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:com.cotrino.langnet.GenerateVisualization.java

private void getLanguages(String file) throws IOException {

    amountWordsPerLanguage = new HashMap<String, Integer>();

    Reader reader = new FileReader(file);
    CSVParser parser = new CSVParser(reader, csvFormat);
    for (CSVRecord record : parser) {
        String language = record.get("Language");
        int words = Integer.parseInt(record.get("Words"));
        amountWordsPerLanguage.put(language, words);
    }//from   w w  w  .j a va 2s . c o m
    parser.close();
    reader.close();

}

From source file:Repackage.java

void writeFile(File f, StringBuffer chars) throws IOException {
    f.getParentFile().mkdirs();// w  w  w .j av a 2  s  .  c  om

    OutputStream out = new FileOutputStream(f);
    Writer w = new OutputStreamWriter(out);
    Reader r = new StringReader(chars.toString());

    copy(r, w);

    r.close();
    w.close();
    out.close();
}

From source file:it.greenvulcano.gvesb.utils.GVESBPropertyHandler.java

private String expandSQLProperties(String str, Map<String, Object> inProperties, Object object, Object extra)
        throws PropertiesHandlerException {
    PreparedStatement ps = null;/*from  ww w .j av  a  2 s  .c  o m*/
    ResultSet rs = null;
    String sqlStatement = null;
    Connection conn = null;
    String connName = "";
    boolean intConn = false;
    try {
        if (!PropertiesHandler.isExpanded(str)) {
            str = PropertiesHandler.expand(str, inProperties, object, extra);
        }
        int pIdx = str.indexOf("::");
        if (pIdx != -1) {
            connName = str.substring(0, pIdx);
            sqlStatement = str.substring(pIdx + 2);
            intConn = true;
        } else {
            sqlStatement = str;
        }
        if (intConn) {
            conn = JDBCConnectionBuilder.getConnection(connName);
        } else if ((extra != null) && (extra instanceof Connection)) {
            conn = (Connection) extra;
        } else {
            throw new PropertiesHandlerException(
                    "Error handling 'sql' metadata '" + str + "', Connection undefined.");
        }
        logger.debug("Executing SQL statement {" + sqlStatement + "} on connection [" + connName + "]");
        ps = conn.prepareStatement(sqlStatement);
        rs = ps.executeQuery();

        String paramValue = null;

        if (rs.next()) {
            ResultSetMetaData rsmeta = rs.getMetaData();
            if (rsmeta.getColumnType(1) == Types.CLOB) {
                Clob clob = rs.getClob(1);
                if (clob != null) {
                    Reader is = clob.getCharacterStream();
                    StringWriter strW = new StringWriter();

                    IOUtils.copy(is, strW);
                    is.close();
                    paramValue = strW.toString();
                }
            } else {
                paramValue = rs.getString(1);
            }
        }

        return (paramValue != null) ? paramValue.trim() : paramValue;
    } catch (Exception exc) {
        logger.warn("Error handling 'sql' metadata '" + sqlStatement + "'", exc);
        if (PropertiesHandler.isExceptionOnErrors()) {
            if (exc instanceof PropertiesHandlerException) {
                throw (PropertiesHandlerException) exc;
            }
            throw new PropertiesHandlerException("Error handling 'sql' metadata '" + str + "'", exc);
        }
        return "sql" + PROP_START + str + PROP_END;
    } finally {
        if (rs != null) {
            try {
                rs.close();
            } catch (Exception exc) {
                // do nothing
            }
        }
        if (ps != null) {
            try {
                ps.close();
            } catch (Exception exc) {
                // do nothing
            }
        }
        if (intConn && (conn != null)) {
            try {
                JDBCConnectionBuilder.releaseConnection(connName, conn);
            } catch (Exception exc) {
                // do nothing
            }
        }
    }
}

From source file:TextFileHandler.java

public String readFile16(File f) throws IOException {
    StringBuilder sb = new StringBuilder();
    String line;/*  w  w  w.j a v  a  2s . com*/
    Reader in = null;
    try {
        in = new InputStreamReader(new FileInputStream(f), "UTF-16");
        BufferedReader reader = new BufferedReader(in);
        while ((line = reader.readLine()) != null) {
            sb.append(line).append("\n");
        }
    } finally {
        in.close();
    }
    return sb.toString();
}

From source file:de.uzk.hki.da.metadata.MetsMetadataStructure.java

public MetsMetadataStructure(Path workPath, File metadataFile, List<de.uzk.hki.da.model.Document> documents)
        throws FileNotFoundException, JDOMException, IOException {
    super(workPath, metadataFile, documents);

    metsFile = metadataFile;// w  w w. j a  va 2 s .co m
    currentDocuments = documents;

    SAXBuilder builder = XMLUtils.createNonvalidatingSaxBuilder();
    FileInputStream fileInputStream = new FileInputStream(Path.makeFile(workPath, metsFile.getPath()));
    BOMInputStream bomInputStream = new BOMInputStream(fileInputStream);
    Reader reader = new InputStreamReader(bomInputStream, "UTF-8");
    InputSource is = new InputSource(reader);
    is.setEncoding("UTF-8");
    metsDoc = builder.build(is);
    metsParser = new MetsParser(metsDoc);

    fileElements = metsParser.getFileElementsFromMetsDoc(metsDoc);
    fileInputStream.close();

    bomInputStream.close();
    reader.close();
}

From source file:com.photon.phresco.util.Utility.java

/**
 * Closes inputsrteam./*from  w  w  w.  j a v a  2  s  .c  o m*/
 * @param inputStream
 */
public static void closeStream(Reader inputStream) {
    try {
        if (inputStream != null) {
            inputStream.close();
        }
    } catch (IOException e) {
        e.printStackTrace();
        //FIXME: should be logged.
    }
}

From source file:com.icesoft.faces.renderkit.IncludeRenderer.java

public void encodeBegin(FacesContext context, UIComponent component) throws IOException {
    if (context == null || component == null) {
        throw new NullPointerException("Null Faces context or component parameter");
    }//from  w  ww  .  java 2s .  c  o  m
    // suppress rendering if "rendered" property on the component is
    // false.
    if (!component.isRendered()) {
        return;
    }

    String page = (String) component.getAttributes().get("page");

    HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
    URI absoluteURI = null;
    try {
        absoluteURI = new URI(request.getScheme() + "://" + request.getServerName() + ":"
                + request.getServerPort() + request.getRequestURI());
        URL includedURL = absoluteURI.resolve(page).toURL();
        URLConnection includedConnection = includedURL.openConnection();
        includedConnection.setRequestProperty("Cookie",
                "JSESSIONID=" + ((HttpSession) context.getExternalContext().getSession(false)).getId());
        Reader contentsReader = new InputStreamReader(includedConnection.getInputStream());

        try {
            StringWriter includedContents = new StringWriter();
            char[] buf = new char[2000];
            int len = 0;
            while ((len = contentsReader.read(buf)) > -1) {
                includedContents.write(buf, 0, len);
            }

            ((UIOutput) component).setValue(includedContents.toString());
        } finally {
            contentsReader.close();
        }
    } catch (Exception e) {
        if (log.isDebugEnabled()) {
            log.debug(e.getMessage());
        }
    }

    super.encodeBegin(context, component);
}

From source file:it.greenvulcano.gvesb.utils.GVESBPropertyHandler.java

private String expandSQLListProperties(String str, Map<String, Object> inProperties, Object object,
        Object extra) throws PropertiesHandlerException {
    PreparedStatement ps = null;//  www .j a va  2  s  .c  om
    ResultSet rs = null;
    String sqlStatement = null;
    Connection conn = null;
    String connName = "";
    String separator = ",";
    boolean intConn = false;
    try {
        if (!PropertiesHandler.isExpanded(str)) {
            str = PropertiesHandler.expand(str, inProperties, object, extra);
        }
        int pIdx = str.indexOf("::");
        if (pIdx != -1) {
            connName = str.substring(0, pIdx);
            sqlStatement = str.substring(pIdx + 2);
            int pIdx2 = str.indexOf("::", pIdx + 2);
            if (pIdx2 != -1) {
                separator = str.substring(pIdx + 2, pIdx2);
                sqlStatement = str.substring(pIdx2 + 2);
            }
            intConn = true;
        } else {
            sqlStatement = str;
        }
        if (intConn) {
            conn = JDBCConnectionBuilder.getConnection(connName);
        } else if ((extra != null) && (extra instanceof Connection)) {
            conn = (Connection) extra;
        } else {
            throw new PropertiesHandlerException(
                    "Error handling 'sqllist' metadata '" + str + "', Connection undefined.");
        }
        ps = conn.prepareStatement(sqlStatement);
        rs = ps.executeQuery();

        String paramValue = "";

        int type = rs.getMetaData().getColumnType(1);

        while (rs.next()) {
            if (type == Types.CLOB) {
                Clob clob = rs.getClob(1);
                if (clob != null) {
                    Reader is = clob.getCharacterStream();
                    StringWriter strW = new StringWriter();

                    IOUtils.copy(is, strW);
                    is.close();
                    paramValue += separator + strW.toString();
                } else {
                    paramValue += separator + "null";
                }
            } else {
                paramValue += separator + rs.getString(1);
            }
        }

        if (!paramValue.equals("")) {
            paramValue = paramValue.substring(separator.length());
        }

        return (paramValue != null) ? paramValue.trim() : paramValue;
    } catch (Exception exc) {
        logger.warn("Error handling 'sqllist' metadata '" + sqlStatement + "'", exc);
        if (PropertiesHandler.isExceptionOnErrors()) {
            if (exc instanceof PropertiesHandlerException) {
                throw (PropertiesHandlerException) exc;
            }
            throw new PropertiesHandlerException("Error handling 'sqllist' metadata '" + str + "'", exc);
        }
        return "sqllist" + PROP_START + str + PROP_END;
    } finally {
        if (rs != null) {
            try {
                rs.close();
            } catch (Exception exc) {
                // do nothing
            }
        }
        if (ps != null) {
            try {
                ps.close();
            } catch (Exception exc) {
                // do nothing
            }
        }
        if (intConn && (conn != null)) {
            try {
                JDBCConnectionBuilder.releaseConnection(connName, conn);
            } catch (Exception exc) {
                // do nothing
            }
        }
    }
}

From source file:com.googlecode.fascinator.indexer.RuleManager.java

public void run(Reader in, Writer out) throws IOException {
    File tmpFile;//from w w  w. j  a  va 2 s . c om
    Reader tmpIn = in;
    Writer tmpOut = null;
    OutputStream tmpOutStream;
    cancelled = false;
    for (Rule rule : rules) {
        try {
            tmpFile = createTempFile("rule", ".xml");
            tmpOutStream = new FileOutputStream(tmpFile);
            tmpOut = new OutputStreamWriter(tmpOutStream, "UTF-8");
            rule.run(tmpIn, tmpOut);
            tmpOut.close();
            tmpOutStream.close();
            tmpIn.close();
            tmpIn = new InputStreamReader(new FileInputStream(tmpFile), "UTF-8");
        } catch (Exception e) {
            if (rule.isRequired()) {
                cancelled = true;
                log.error("Stopping since " + rule + " failed: ", e);
                break;
            } else {
                log.warn("Rule " + rule + " failed: " + e.getMessage());
                e.printStackTrace();
            }
        }
    }
    if (!cancelled) {
        IOUtils.copy(tmpIn, out);
    }
    tmpIn.close();
    out.close();
    cleanupTempFiles();
}

From source file:edu.washington.gs.skyline.model.quantification.QuantificationTest.java

private List<InputRecord> readInputRecords(String filename) throws Exception {
    List<InputRecord> list = new ArrayList<>();
    Reader reader = new InputStreamReader(QuantificationTest.class.getResourceAsStream(filename));
    try {/*from   www . j av a 2 s.com*/
        CSVParser parser = new CSVParser(reader, CSVFormat.EXCEL.withHeader());
        for (CSVRecord record : parser.getRecords()) {
            list.add(new InputRecord(record));
        }

    } finally {
        reader.close();
    }
    return list;
}