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:examples.mail.java

public final static void main(String[] args) {
    String sender, recipient, subject, filename, server, cc;
    Vector ccList = new Vector();
    BufferedReader stdin;// w w  w. ja v  a2  s. c  o  m
    FileReader fileReader = null;
    Writer writer;
    SimpleSMTPHeader header;
    SMTPClient client;
    Enumeration en;

    if (args.length < 1) {
        System.err.println("Usage: mail smtpserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        sender = stdin.readLine();

        System.out.print("To: ");
        System.out.flush();

        recipient = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleSMTPHeader(sender, recipient, subject);

        while (true) {
            System.out.print("CC <enter one address per line, hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            cc = stdin.readLine().trim();

            if (cc.length() == 0)
                break;

            header.addCC(cc);
            ccList.addElement(cc);
        }

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
        }

        client = new SMTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

        client.connect(server);

        if (!SMTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("SMTP server refused connection.");
            System.exit(1);
        }

        client.login();

        client.setSender(sender);
        client.addRecipient(recipient);

        en = ccList.elements();

        while (en.hasMoreElements())
            client.addRecipient((String) en.nextElement());

        writer = client.sendMessageData();

        if (writer != null) {
            writer.write(header.toString());
            Util.copyReader(fileReader, writer);
            writer.close();
            client.completePendingCommand();
        }

        fileReader.close();

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:examples.nntp.post.java

public final static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;/*from   www. ja va2  s.c  o m*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0)
                break;

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0)
            header.addHeaderField("Organization", organization);

        if (references != null && organization.length() > 0)
            header.addHeaderField("References", references);

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out)));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        fileReader.close();

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:examples.nntp.PostMessage.java

public static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;/* w w  w .java2s  .  c om*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:org.apache.common.net.examples.nntp.PostMessage.java

public final static void main(String[] args) {
    String from, subject, newsgroup, filename, server, organization;
    String references;/* w w  w.j av a2  s.  c  om*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            // Of course you don't want to do this because readLine() may be null
            newsgroup = stdin.readLine().trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("ProcessExecutorHelper-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        filename = stdin.readLine();

        try {
            fileReader = new FileReader(filename);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:org.apache.commons.net.examples.nntp.PostMessage.java

public static void main(String[] args) {
    String from, subject, newsgroup, fileName, server, organization;
    String references;/*w  w w . j  a v  a 2 s.  c  om*/
    BufferedReader stdin;
    FileReader fileReader = null;
    SimpleNNTPHeader header;
    NNTPClient client;

    if (args.length < 1) {
        System.err.println("Usage: post newsserver");
        System.exit(1);
    }

    server = args[0];

    stdin = new BufferedReader(new InputStreamReader(System.in));

    try {
        System.out.print("From: ");
        System.out.flush();

        from = stdin.readLine();

        System.out.print("Subject: ");
        System.out.flush();

        subject = stdin.readLine();

        header = new SimpleNNTPHeader(from, subject);

        System.out.print("Newsgroup: ");
        System.out.flush();

        newsgroup = stdin.readLine();
        header.addNewsgroup(newsgroup);

        while (true) {
            System.out.print("Additional Newsgroup <Hit enter to end>: ");
            System.out.flush();

            newsgroup = stdin.readLine();
            if (newsgroup == null) {
                break;
            }

            newsgroup = newsgroup.trim();

            if (newsgroup.length() == 0) {
                break;
            }

            header.addNewsgroup(newsgroup);
        }

        System.out.print("Organization: ");
        System.out.flush();

        organization = stdin.readLine();

        System.out.print("References: ");
        System.out.flush();

        references = stdin.readLine();

        if (organization != null && organization.length() > 0) {
            header.addHeaderField("Organization", organization);
        }

        if (references != null && references.length() > 0) {
            header.addHeaderField("References", references);
        }

        header.addHeaderField("X-Newsreader", "NetComponents");

        System.out.print("Filename: ");
        System.out.flush();

        fileName = stdin.readLine();

        try {
            fileReader = new FileReader(fileName);
        } catch (FileNotFoundException e) {
            System.err.println("File not found. " + e.getMessage());
            System.exit(1);
        }

        client = new NNTPClient();
        client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));

        client.connect(server);

        if (!NNTPReply.isPositiveCompletion(client.getReplyCode())) {
            client.disconnect();
            System.err.println("NNTP server refused connection.");
            System.exit(1);
        }

        if (client.isAllowedToPost()) {
            Writer writer = client.postArticle();

            if (writer != null) {
                writer.write(header.toString());
                Util.copyReader(fileReader, writer);
                writer.close();
                client.completePendingCommand();
            }
        }

        if (fileReader != null) {
            fileReader.close();
        }

        client.logout();

        client.disconnect();
    } catch (IOException e) {
        e.printStackTrace();
        System.exit(1);
    }
}

From source file:io.s4.util.AvroSchemaSupplementer.java

public static void main(String args[]) {
    if (args.length < 1) {
        System.err.println("No schema filename specified");
        System.exit(1);//  w w w  . ja  v a  2 s  .c o m
    }

    String filename = args[0];
    FileReader fr = null;
    BufferedReader br = null;
    InputStreamReader isr = null;
    try {
        if (filename == "-") {
            isr = new InputStreamReader(System.in);
            br = new BufferedReader(isr);
        } else {
            fr = new FileReader(filename);
            br = new BufferedReader(fr);
        }

        String inputLine = "";
        StringBuffer jsonBuffer = new StringBuffer();
        while ((inputLine = br.readLine()) != null) {
            jsonBuffer.append(inputLine);
        }

        JSONObject jsonRecord = new JSONObject(jsonBuffer.toString());

        JSONObject keyPathElementSchema = new JSONObject();
        keyPathElementSchema.put("name", "KeyPathElement");
        keyPathElementSchema.put("type", "record");

        JSONArray fieldsArray = new JSONArray();
        JSONObject fieldRecord = new JSONObject();
        fieldRecord.put("name", "index");
        JSONArray typeArray = new JSONArray("[\"int\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "keyName");
        typeArray = new JSONArray("[\"string\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);

        keyPathElementSchema.put("fields", fieldsArray);

        JSONObject keyInfoSchema = new JSONObject();
        keyInfoSchema.put("name", "KeyInfo");
        keyInfoSchema.put("type", "record");

        fieldsArray = new JSONArray();
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "keyPath");
        typeArray = new JSONArray("[\"string\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "fullKeyPath");
        typeArray = new JSONArray("[\"string\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "keyPathElementList");
        JSONObject typeRecord = new JSONObject();
        typeRecord.put("type", "array");
        typeRecord.put("items", keyPathElementSchema);
        fieldRecord.put("type", typeRecord);
        fieldsArray.put(fieldRecord);

        keyInfoSchema.put("fields", fieldsArray);

        JSONObject partitionInfoSchema = new JSONObject();
        partitionInfoSchema.put("name", "PartitionInfo");
        partitionInfoSchema.put("type", "record");
        fieldsArray = new JSONArray();
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "partitionId");
        typeArray = new JSONArray("[\"int\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "compoundKey");
        typeArray = new JSONArray("[\"string\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "compoundValue");
        typeArray = new JSONArray("[\"string\", \"null\"]");
        fieldRecord.put("type", typeArray);
        fieldsArray.put(fieldRecord);
        fieldRecord = new JSONObject();
        fieldRecord.put("name", "keyInfoList");
        typeRecord = new JSONObject();
        typeRecord.put("type", "array");
        typeRecord.put("items", keyInfoSchema);
        fieldRecord.put("type", typeRecord);
        fieldsArray.put(fieldRecord);

        partitionInfoSchema.put("fields", fieldsArray);

        fieldRecord = new JSONObject();
        fieldRecord.put("name", "S4__PartitionInfo");
        typeRecord = new JSONObject();
        typeRecord.put("type", "array");
        typeRecord.put("items", partitionInfoSchema);
        fieldRecord.put("type", typeRecord);

        fieldsArray = jsonRecord.getJSONArray("fields");
        fieldsArray.put(fieldRecord);

        System.out.println(jsonRecord.toString(3));
    } catch (Exception ioe) {
        throw new RuntimeException(ioe);
    } finally {
        if (br != null)
            try {
                br.close();
            } catch (Exception e) {
            }
        if (isr != null)
            try {
                isr.close();
            } catch (Exception e) {
            }
        if (fr != null)
            try {
                fr.close();
            } catch (Exception e) {
            }
    }
}

From source file:Main.java

public static boolean canOpenFile(String d) {
    FileReader f;
    try {/* www  .j ava 2s  .  c  o  m*/
        f = new FileReader(d);
        f.close();
    } catch (Exception e) {
        return false;
    }
    return true;
}

From source file:Main.java

public static String read(File src) throws IOException {
    long length = src.length();

    // Probably not the best way to do it, but I'm lazy.
    char[] chars = new char[(int) length];
    FileReader fileReader = new FileReader(src);
    fileReader.read(chars);//ww w . j  a  va 2 s.com
    fileReader.close();
    return new String(chars);
}

From source file:com.nomsic.randb.test.TestUtils.java

public static String getFileAsString(File file) throws FileNotFoundException, IOException {
    FileReader fileReader = new FileReader(file);
    String indexString = IOUtils.toString(fileReader);
    fileReader.close();
    return indexString;
}

From source file:LoadSave.java

public static void doLoadCommand(JTextComponent textComponent, String filename) throws Exception {
    FileReader reader = null;
    reader = new FileReader(filename);
    textComponent.read(reader, filename);
    reader.close();
}