Example usage for java.io FileReader close

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();
    }
}

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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;
}

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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;
}

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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();
}

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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();
}

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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;
}

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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();
    }
}

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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;
}

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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;
}

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