Example usage for java.io FileReader close

List of usage examples for java.io FileReader close

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Introduction

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

Prototype

public void close() throws IOException

Source Link

Usage

From source file:com.serotonin.bacnet4j.util.sero.StreamUtils.java

public static String readFile(File file) throws IOException {
    FileReader in = null;
    try {//from   w w w  . j a v  a2  s .c  o m
        in = new FileReader(file);
        StringWriter out = new StringWriter();
        transfer(in, out);
        return out.toString();
    } finally {
        if (in != null)
            in.close();
    }
}

From source file:Main.java

public static String getCpuName() {
    FileReader fr = null;
    BufferedReader br = null;//from w ww  .  ja  va 2 s.c  o m
    try {
        fr = new FileReader("/proc/cpuinfo");
        br = new BufferedReader(fr);
        String text = br.readLine();
        String[] array = text.split(":\\s+", 2);
        for (int i = 0; i < array.length; i++) {
        }
        return array[1];
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (fr != null)
            try {
                fr.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        if (br != null)
            try {
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
    }
    return null;
}

From source file:com.applerox.jack.AppleCommands.AppleCommands.java

public static boolean resetConfigFile(File configFile, boolean deleteOld) {
    if (deleteOld && configFile.exists()) {
        configFile.delete();// w  w  w. ja v  a2  s .c o  m
        try {
            //createDefaultItems(configFile, defaults);
            return true;
        } catch (Exception e) {
            ac.logger
                    .severe("[AppleCommands] Failed to reset configuration! Let AppleCommands devs know this:");
            e.printStackTrace();
        }
    } else if (configFile.exists() && !deleteOld) {
        try {
            FileReader instream = new FileReader(configFile);
            FileWriter outstream = new FileWriter(configFile);
            BufferedReader reader = new BufferedReader(instream);
            BufferedWriter writer = new BufferedWriter(outstream);

            //for (line : reader.getLines()) {
            //   li
            //}

            instream.close();
            outstream.close();
        } catch (Exception e) {
            ac.logger
                    .severe("[AppleCommands] Failed to reset configuration! Let AppleCommands devs know this!");
            e.printStackTrace();
        }
    } else if (!configFile.exists()) {
        try {
            configFile.createNewFile();
        } catch (Exception e) {
            ac.logger.severe(
                    "[AppleCommands] Failed to create configuration file! Let AppleCommands devs know this!");
        }

    }

    return true;
}

From source file:net.rptools.lib.FileUtil.java

@SuppressWarnings("unchecked")
public static List<String> getLines(File file) throws IOException {
    List<String> list;
    FileReader fr = new FileReader(file);
    try {// ww w.  j a  v a2  s  . com
        list = IOUtils.readLines(fr);
    } finally {
        fr.close();
    }
    return list;
}

From source file:com.dbmojo.Util.java

/** Read a file into a String */
public static String fileToString(String file) throws IOException {
    StringBuilder lines = new StringBuilder();
    FileReader fileReader = null;
    BufferedReader bufferedReader = null;
    String line = null;/*  w w w. ja  v a 2 s  .  com*/

    try {
        fileReader = new FileReader(file);
        bufferedReader = new BufferedReader(fileReader);
        while ((line = bufferedReader.readLine()) != null) {
            lines.append(line);
        }
    } finally {
        if (bufferedReader != null) {
            bufferedReader.close();
        }
        if (fileReader != null) {
            fileReader.close();
        }
    }
    return lines.toString();
}

From source file:org.globus.workspace.groupauthz.Group.java

private static String gRead(String fileName) throws IOException {
    final StringBuffer sb = new StringBuffer(16);

    FileReader fr = null;
    BufferedReader br = null;//w  w  w . j a  v a  2s  .  c  o  m
    try {
        fr = new FileReader(fileName);
        br = new BufferedReader(fr);
        String s = br.readLine();
        while (s != null) {
            sb.append(s);
            sb.append("\n");
            s = br.readLine();
        }
    } finally {
        if (fr != null) {
            fr.close();
        }
        if (br != null) {
            br.close();
        }
    }
    return sb.toString();
}

From source file:com.netcrest.pado.internal.security.AESCipher.java

private static byte[] getUserPrivateKey() throws IOException {
    byte[] privateKey = null;

    String estr;/*from www  .j av  a 2s .c om*/
    String certificateFilePath = PadoUtil.getProperty(Constants.PROP_SECURITY_AES_USER_CERTIFICATE,
            "security/user.cer");
    if (certificateFilePath.startsWith("/") == false) {

        // TODO: Make server files relative to PADO_HOME also.
        if (PadoUtil.isPureClient()) {
            String padoHome = PadoUtil.getProperty(Constants.PROP_HOME_DIR);
            certificateFilePath = padoHome + "/" + certificateFilePath;
        }
    }
    File file = new File(certificateFilePath);
    if (file.exists() == false) {
        FileWriter writer = null;
        try {
            privateKey = AESCipher.getPrivateKey();
            Base64 base64 = new Base64(0); // no line breaks
            estr = base64.encodeToString(privateKey);
            writer = new FileWriter(file);
            writer.write(estr);
        } finally {
            if (writer != null) {
                writer.close();
            }
        }
    } else {
        FileReader reader = null;
        try {
            reader = new FileReader(file);
            StringBuffer buffer = new StringBuffer(2048);
            int c;
            while ((c = reader.read()) != -1) {
                buffer.append((char) c);
            }
            estr = buffer.toString();
        } finally {
            if (reader != null) {
                reader.close();
            }
        }
    }
    Base64 base64 = new Base64(0); // no line breaks
    privateKey = base64.decode(estr);
    return privateKey;
}

From source file:org.apache.hyracks.control.cc.ClusterControllerService.java

private static ClusterTopology computeClusterTopology(CCConfig ccConfig) throws Exception {
    if (ccConfig.getClusterTopology() == null) {
        return null;
    }//from   w  w  w . j ava  2  s.  co  m
    FileReader fr = new FileReader(ccConfig.getClusterTopology());
    InputSource in = new InputSource(fr);
    try {
        return TopologyDefinitionParser.parse(in);
    } finally {
        fr.close();
    }
}

From source file:org.eclipse.orion.internal.server.core.metastore.SimpleMetaStoreUtil.java

/**
 * Get the JSON from the MetaFile in the provided parent folder. 
 * @param parent The parent folder./*from   w ww.  j  av  a 2s .  c o m*/
 * @param name The name of the MetaFile
 * @return The JSON containing the data in the MetaFile.
 */
public static JSONObject readMetaFile(File parent, String name) {
    JSONObject jsonObject;
    try {
        if (!isMetaFile(parent, name)) {
            return null;
        }
        File savedFile = retrieveMetaFile(parent, name);

        FileReader fileReader = new FileReader(savedFile);
        char[] chars = new char[(int) savedFile.length()];
        fileReader.read(chars);
        fileReader.close();
        jsonObject = new JSONObject(new String(chars));
    } catch (FileNotFoundException e) {
        throw new RuntimeException("Meta File Error, file not found", e);
    } catch (IOException e) {
        throw new RuntimeException("Meta File Error, file IO error", e);
    } catch (JSONException e) {
        throw new RuntimeException("Meta File Error, could not build JSON", e);
    }
    return jsonObject;
}

From source file:de.uni_rostock.goodod.tools.Configuration.java

private static boolean isXMLConfig(File confFile) throws FileNotFoundException, IOException {
    FileReader reader = new FileReader(confFile);
    char beginning[] = new char[7];
    // we search for "<?xml" but need two additional characters to accommodate a potential BOM
    reader.read(beginning, 0, 7);/*from  w w  w.  j av a 2 s  . c  o  m*/
    if (('<' == beginning[0]) && ('?' == beginning[1]) && ('x' == beginning[2]) && ('m' == beginning[3])
            && ('l' == beginning[4])) {
        reader.close();
        return true;
    }

    // Case with byte order mark:
    if (('<' == beginning[2]) && ('?' == beginning[3]) && ('x' == beginning[4]) && ('m' == beginning[5])
            && ('l' == beginning[6])) {
        reader.close();
        return true;
    }
    reader.close();
    return false;
}