Example usage for java.util Properties put

List of usage examples for java.util Properties put

  1. HOME
  2. Java
  3. java
  4. java.util.*
  5. Properties
  6. put

Introduction

In this page you can find the example usage for java.util Properties put.

Prototype

@Override
    public synchronized Object put(Object key, Object value)

Source Link

Usage

From source file:WebCrawler.java

  public static void main(String argv[]) {
  WebCrawler applet = new WebCrawler();
  /*/*from  www . j av a2 s  .  c o  m*/
   * Behind a firewall set your proxy and port here!
   */
  Properties props = new Properties(System.getProperties());
  props.put("http.proxySet", "true");
  props.put("http.proxyHost", "webcache-cup");
  props.put("http.proxyPort", "8080");

  Properties newprops = new Properties(props);
  System.setProperties(newprops);
}

From source file:sendfile.java

public static void main(String[] args) {
    if (args.length != 5) {
        System.out.println("usage: java sendfile <to> <from> <smtp> <file> true|false");
        System.exit(1);/*from  ww w.  j a  v a 2 s  .  c  o m*/
    }

    String to = args[0];
    String from = args[1];
    String host = args[2];
    String filename = args[3];
    boolean debug = Boolean.valueOf(args[4]).booleanValue();
    String msgText1 = "Sending a file.\n";
    String subject = "Sending a file";

    // create some properties and get the default Session
    Properties props = System.getProperties();
    props.put("mail.smtp.host", host);

    Session session = Session.getInstance(props, null);
    session.setDebug(debug);

    try {
        // create a message
        MimeMessage msg = new MimeMessage(session);
        msg.setFrom(new InternetAddress(from));
        InternetAddress[] address = { new InternetAddress(to) };
        msg.setRecipients(Message.RecipientType.TO, address);
        msg.setSubject(subject);

        // create and fill the first message part
        MimeBodyPart mbp1 = new MimeBodyPart();
        mbp1.setText(msgText1);

        // create the second message part
        MimeBodyPart mbp2 = new MimeBodyPart();

        // attach the file to the message
        mbp2.attachFile(filename);

        /*
         * Use the following approach instead of the above line if
         * you want to control the MIME type of the attached file.
         * Normally you should never need to do this.
         *
        FileDataSource fds = new FileDataSource(filename) {
        public String getContentType() {
           return "application/octet-stream";
        }
        };
        mbp2.setDataHandler(new DataHandler(fds));
        mbp2.setFileName(fds.getName());
         */

        // create the Multipart and add its parts to it
        Multipart mp = new MimeMultipart();
        mp.addBodyPart(mbp1);
        mp.addBodyPart(mbp2);

        // add the Multipart to the message
        msg.setContent(mp);

        // set the Date: header
        msg.setSentDate(new Date());

        /*
         * If you want to control the Content-Transfer-Encoding
         * of the attached file, do the following.  Normally you
         * should never need to do this.
         *
        msg.saveChanges();
        mbp2.setHeader("Content-Transfer-Encoding", "base64");
         */

        // send the message
        Transport.send(msg);

    } catch (MessagingException mex) {
        mex.printStackTrace();
        Exception ex = null;
        if ((ex = mex.getNextException()) != null) {
            ex.printStackTrace();
        }
    } catch (IOException ioex) {
        ioex.printStackTrace();
    }
}

From source file:io.hops.examples.spark.kafka.StreamingLogs.java

public static void main(final String[] args) throws Exception {

    SparkConf sparkConf = new SparkConf().setAppName(Hops.getJobName());
    JavaStreamingContext jssc = new JavaStreamingContext(sparkConf, Durations.seconds(2));

    //Use applicationId for sink folder
    final String appId = jssc.sparkContext().getConf().getAppId();
    SparkSession sparkSession = SparkSession.builder().config(sparkConf).getOrCreate();
    //Get consumer groups
    Properties props = new Properties();
    props.put("value.deserializer", StringDeserializer.class.getName());
    props.put("client.id", Hops.getJobName());
    SparkConsumer consumer = Hops.getSparkConsumer(jssc, props);
    //Store processed offsets

    // Create direct kafka stream with topics
    JavaInputDStream<ConsumerRecord<String, String>> messages = consumer.createDirectStream();

    //Convert line to JSON
    JavaDStream<NamenodeLogEntry> logEntries = messages
            .map(new Function<ConsumerRecord<String, String>, JSONObject>() {
                @Override// www.  j a v  a  2 s  .  com
                public JSONObject call(ConsumerRecord<String, String> record)
                        throws SchemaNotFoundException, MalformedURLException, ProtocolException {
                    LOG.log(Level.INFO, "record:{0}", record);
                    return parser(record.value(), appId);
                }
            }).map(new Function<JSONObject, NamenodeLogEntry>() {
                @Override
                public NamenodeLogEntry call(JSONObject json)
                        throws SchemaNotFoundException, MalformedURLException, ProtocolException, IOException {
                    NamenodeLogEntry logEntry = new NamenodeLogEntry(
                            json.getString("message").replace("\n\t", "\n").replace("\n", "---"),
                            json.getString("priority"), json.getString("logger_name"),
                            json.getString("timestamp"), json.getString("file"));
                    LOG.log(Level.INFO, "NamenodeLogEntry:{0}", logEntry);
                    return logEntry;
                }
            });

    //logEntries.print();
    logEntries.foreachRDD(new VoidFunction2<JavaRDD<NamenodeLogEntry>, Time>() {
        @Override
        public void call(JavaRDD<NamenodeLogEntry> rdd, Time time) throws Exception {
            Dataset<Row> row = sparkSession.createDataFrame(rdd, NamenodeLogEntry.class);
            if (!rdd.isEmpty()) {
                row.write().mode(SaveMode.Append)
                        .parquet("/Projects/" + Hops.getProjectName() + "/Resources/LogAnalysis");
            }
        }
    });
    /*
     * Enable this to get all the streaming outputs. It creates a folder for
     * every microbatch slot.
     * ///////////////////////////////////////////////////////////////////////
     * wordCounts.saveAsHadoopFiles(args[1], "txt", String.class,
     * String.class, (Class) TextOutputFormat.class);
     * ///////////////////////////////////////////////////////////////////////
     */
    // Start the computation
    jssc.start();
    Hops.shutdownGracefully(jssc);
}

From source file:edu.indiana.d2i.sloan.internal.CreateVMSimulator.java

public static void main(String[] args) {
    CreateVMSimulator simulator = new CreateVMSimulator();

    CommandLineParser parser = new PosixParser();

    try {//w  w  w . j a  va2s.  com
        CommandLine line = simulator.parseCommandLine(parser, args);

        String imagePath = line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.IMAGE_PATH));
        int vcpu = Integer.parseInt(line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.VCPU)));
        int mem = Integer.parseInt(line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.MEM)));

        if (!HypervisorCmdSimulator.resourceExist(imagePath)) {
            logger.error(String.format("Cannot find requested image: %s", imagePath));
            System.exit(ERROR_CODE.get(ERROR_STATE.IMAGE_NOT_EXIST));
        }

        if (!hasEnoughCPUs(vcpu)) {
            logger.error(String.format("Don't have enough cpus, requested %d", vcpu));
            System.exit(ERROR_CODE.get(ERROR_STATE.NOT_ENOUGH_CPU));
        }

        if (!hasEnoughMem(mem)) {
            logger.error(String.format("Don't have enough memory, requested %d", mem));
            System.exit(ERROR_CODE.get(ERROR_STATE.NOT_ENOUGH_MEM));
        }

        String wdir = line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.WORKING_DIR));

        if (HypervisorCmdSimulator.resourceExist(wdir)) {
            logger.error(String.format("Working directory %s already exists ", wdir));
            System.exit(ERROR_CODE.get(ERROR_STATE.VM_ALREADY_EXIST));
        }

        // copy VM image to working directory
        File imageFile = new File(imagePath);
        FileUtils.copyFile(imageFile, new File(HypervisorCmdSimulator.cleanPath(wdir) + imageFile.getName()));

        // write state as property file so that we can query later
        Properties prop = new Properties();

        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.IMAGE_PATH), imagePath);
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.VCPU), String.valueOf(vcpu));
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.MEM), String.valueOf(mem));
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.WORKING_DIR), wdir);
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.VNC_PORT),
                line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.VNC_PORT)));
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.SSH_PORT),
                line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.SSH_PORT)));
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.LOGIN_USERNAME),
                line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.LOGIN_USERNAME)));
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.LOGIN_PASSWD),
                line.getOptionValue(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.LOGIN_PASSWD)));

        // write VM state as shutdown
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.VM_STATE), VMState.SHUTDOWN.toString());
        // write VM mode as undefined
        prop.put(CMD_FLAG_VALUE.get(CMD_FLAG_KEY.VM_MODE), VMMode.NOT_DEFINED.toString());

        prop.store(
                new FileOutputStream(new File(
                        HypervisorCmdSimulator.cleanPath(wdir) + HypervisorCmdSimulator.VM_INFO_FILE_NAME)),
                "");

        // do other related settings
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            logger.error(e.getMessage());
        }

        // success
        System.exit(0);

    } catch (ParseException e) {
        logger.error(String.format("Cannot parse input arguments: %s%n, expected:%n%s",
                StringUtils.join(args, " "), simulator.getUsage(100, "", 5, 5, "")));

        System.exit(ERROR_CODE.get(ERROR_STATE.INVALID_INPUT_ARGS));
    } catch (IOException e) {
        logger.error(e.getMessage(), e);
        System.exit(ERROR_CODE.get(ERROR_STATE.IO_ERR));
    }
}

From source file:com.singhasdev.calamus.app.sentimentanalysis.SentimentAnalyzer.java

public static void main(String[] args) throws Exception {
    Properties props = new Properties();
    props.put(StreamsConfig.APPLICATION_ID_CONFIG, "sentiment-analyzer");
    props.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
    props.put(StreamsConfig.ZOOKEEPER_CONNECT_CONFIG, "localhost:2181");
    props.put(StreamsConfig.KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass());
    props.put(StreamsConfig.VALUE_SERDE_CLASS_CONFIG, Serdes.String().getClass());

    // setting offset reset to earliest so that we can re-run the demo code with the same pre-loaded data
    props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");

    TopologyBuilder builder = new TopologyBuilder();

    builder.addSource("Source", "test");

    builder.addProcessor("Process", new CalculateSentiment(), "Source");
    builder.addStateStore(//from www .  j  a va2s .  c  o m
            Stores.create("SentimentAnalysis").withStringKeys().withStringValues().inMemory().build(),
            "Process");

    builder.addSink("Sink", "test-output", "Process");

    STREAMS = new KafkaStreams(builder, props);
    STREAMS.start();

    Runtime.getRuntime().addShutdownHook(new Thread("MirrorMakerShutdownHook") {
        @Override
        public void run() {
            System.out.println("Closing Calamus sentiment-analyzer.");
            STREAMS.close();
        }
    });
}

From source file:se.vgregion.portal.cs.util.CryptoUtilImpl.java

/**
 * Main method used for creating initial key file.
 * /*from  w w  w  . j a  v a2  s  .c om*/
 * @param args
 *            - not used
 */
public static void main(String[] args) {
    final String keyFile = "./howto.key";
    final String pwdFile = "./howto.properties";

    CryptoUtilImpl cryptoUtils = new CryptoUtilImpl();
    cryptoUtils.setKeyFile(new File(keyFile));

    String clearPwd = "my_cleartext_pwd";

    Properties p1 = new Properties();
    Writer w = null;
    try {
        p1.put("user", "liferay");
        String encryptedPwd = cryptoUtils.encrypt(clearPwd);
        p1.put("pwd", encryptedPwd);
        w = new FileWriter(pwdFile);
        p1.store(w, "");
    } catch (GeneralSecurityException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (w != null) {
            try {
                w.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    // ==================
    Properties p2 = new Properties();
    Reader r = null;
    try {
        r = new FileReader(pwdFile);
        p2.load(r);
        String encryptedPwd = p2.getProperty("pwd");
        System.out.println(encryptedPwd);
        System.out.println(cryptoUtils.decrypt(encryptedPwd));
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (GeneralSecurityException e) {
        e.printStackTrace();
    } finally {
        if (r != null) {
            try {
                r.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

From source file:examples.KafkaStreamsDemo.java

public static void main(String[] args) throws InterruptedException, SQLException {
    /**/*from ww  w. j ava2s . c o m*/
     * The example assumes the following SQL schema
     *
     *    DROP DATABASE IF EXISTS beer_sample_sql;
     *    CREATE DATABASE beer_sample_sql CHARACTER SET utf8 COLLATE utf8_general_ci;
     *    USE beer_sample_sql;
     *
     *    CREATE TABLE breweries (
     *       id VARCHAR(256) NOT NULL,
     *       name VARCHAR(256),
     *       description TEXT,
     *       country VARCHAR(256),
     *       city VARCHAR(256),
     *       state VARCHAR(256),
     *       phone VARCHAR(40),
     *       updated_at DATETIME,
     *       PRIMARY KEY (id)
     *    );
     *
     *
     *    CREATE TABLE beers (
     *       id VARCHAR(256) NOT NULL,
     *       brewery_id VARCHAR(256) NOT NULL,
     *       name VARCHAR(256),
     *       category VARCHAR(256),
     *       style VARCHAR(256),
     *       description TEXT,
     *       abv DECIMAL(10,2),
     *       ibu DECIMAL(10,2),
     *       updated_at DATETIME,
     *       PRIMARY KEY (id)
     *    );
     */
    try {
        Class.forName("com.mysql.jdbc.Driver");
    } catch (ClassNotFoundException e) {
        System.err.println("Failed to load MySQL JDBC driver");
    }
    Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/beer_sample_sql", "root",
            "secret");
    final PreparedStatement insertBrewery = connection.prepareStatement(
            "INSERT INTO breweries (id, name, description, country, city, state, phone, updated_at)"
                    + " VALUES (?, ?, ?, ?, ?, ?, ?, ?)" + " ON DUPLICATE KEY UPDATE"
                    + " name=VALUES(name), description=VALUES(description), country=VALUES(country),"
                    + " country=VALUES(country), city=VALUES(city), state=VALUES(state),"
                    + " phone=VALUES(phone), updated_at=VALUES(updated_at)");
    final PreparedStatement insertBeer = connection.prepareStatement(
            "INSERT INTO beers (id, brewery_id, name, description, category, style, abv, ibu, updated_at)"
                    + " VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)" + " ON DUPLICATE KEY UPDATE"
                    + " brewery_id=VALUES(brewery_id), name=VALUES(name), description=VALUES(description),"
                    + " category=VALUES(category), style=VALUES(style), abv=VALUES(abv),"
                    + " ibu=VALUES(ibu), updated_at=VALUES(updated_at)");

    String schemaRegistryUrl = "http://localhost:8081";

    Properties props = new Properties();
    props.put(StreamsConfig.APPLICATION_ID_CONFIG, "streams-test");
    props.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");
    props.put(StreamsConfig.ZOOKEEPER_CONNECT_CONFIG, "localhost:2181");
    props.put(AbstractKafkaAvroSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG, schemaRegistryUrl);
    props.put(StreamsConfig.KEY_SERDE_CLASS_CONFIG, KeyAvroSerde.class);
    props.put(StreamsConfig.VALUE_SERDE_CLASS_CONFIG, ValueAvroSerde.class);

    props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest");

    KStreamBuilder builder = new KStreamBuilder();

    KStream<String, GenericRecord> source = builder.stream("streaming-topic-beer-sample");

    KStream<String, JsonNode>[] documents = source.mapValues(new ValueMapper<GenericRecord, JsonNode>() {
        @Override
        public JsonNode apply(GenericRecord value) {
            ByteBuffer buf = (ByteBuffer) value.get("content");
            try {
                JsonNode doc = MAPPER.readTree(buf.array());
                return doc;
            } catch (IOException e) {
                return null;
            }
        }
    }).branch(new Predicate<String, JsonNode>() {
        @Override
        public boolean test(String key, JsonNode value) {
            return "beer".equals(value.get("type").asText()) && value.has("brewery_id") && value.has("name")
                    && value.has("description") && value.has("category") && value.has("style")
                    && value.has("abv") && value.has("ibu") && value.has("updated");
        }
    }, new Predicate<String, JsonNode>() {
        @Override
        public boolean test(String key, JsonNode value) {
            return "brewery".equals(value.get("type").asText()) && value.has("name") && value.has("description")
                    && value.has("country") && value.has("city") && value.has("state") && value.has("phone")
                    && value.has("updated");
        }
    });
    documents[0].foreach(new ForeachAction<String, JsonNode>() {
        @Override
        public void apply(String key, JsonNode value) {
            try {
                insertBeer.setString(1, key);
                insertBeer.setString(2, value.get("brewery_id").asText());
                insertBeer.setString(3, value.get("name").asText());
                insertBeer.setString(4, value.get("description").asText());
                insertBeer.setString(5, value.get("category").asText());
                insertBeer.setString(6, value.get("style").asText());
                insertBeer.setBigDecimal(7, new BigDecimal(value.get("abv").asText()));
                insertBeer.setBigDecimal(8, new BigDecimal(value.get("ibu").asText()));
                insertBeer.setDate(9, new Date(DATE_FORMAT.parse(value.get("updated").asText()).getTime()));
                insertBeer.execute();
            } catch (SQLException e) {
                System.err.println("Failed to insert record: " + key + ". " + e);
            } catch (ParseException e) {
                System.err.println("Failed to insert record: " + key + ". " + e);
            }
        }
    });
    documents[1].foreach(new ForeachAction<String, JsonNode>() {
        @Override
        public void apply(String key, JsonNode value) {
            try {
                insertBrewery.setString(1, key);
                insertBrewery.setString(2, value.get("name").asText());
                insertBrewery.setString(3, value.get("description").asText());
                insertBrewery.setString(4, value.get("country").asText());
                insertBrewery.setString(5, value.get("city").asText());
                insertBrewery.setString(6, value.get("state").asText());
                insertBrewery.setString(7, value.get("phone").asText());
                insertBrewery.setDate(8, new Date(DATE_FORMAT.parse(value.get("updated").asText()).getTime()));
                insertBrewery.execute();
            } catch (SQLException e) {
                System.err.println("Failed to insert record: " + key + ". " + e);
            } catch (ParseException e) {
                System.err.println("Failed to insert record: " + key + ". " + e);
            }
        }
    });

    final KafkaStreams streams = new KafkaStreams(builder, props);
    streams.start();
    Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
        @Override
        public void run() {
            streams.close();
        }
    }));
}

From source file:com.zimbra.cs.util.SmtpInject.java

public static void main(String[] args) {
    CliUtil.toolSetup();//from   www.  ja v a 2  s. com
    CommandLine cl = parseArgs(args);

    if (cl.hasOption("h")) {
        usage(null);
    }

    String file = null;
    if (!cl.hasOption("f")) {
        usage("no file specified");
    } else {
        file = cl.getOptionValue("f");
    }
    try {
        ByteUtil.getContent(new File(file));
    } catch (IOException ioe) {
        usage(ioe.getMessage());
    }

    String host = null;
    if (!cl.hasOption("a")) {
        usage("no smtp server specified");
    } else {
        host = cl.getOptionValue("a");
    }

    String sender = null;
    if (!cl.hasOption("s")) {
        usage("no sender specified");
    } else {
        sender = cl.getOptionValue("s");
    }

    String recipient = null;
    if (!cl.hasOption("r")) {
        usage("no recipient specified");
    } else {
        recipient = cl.getOptionValue("r");
    }

    boolean trace = false;
    if (cl.hasOption("T")) {
        trace = true;
    }

    boolean tls = false;
    if (cl.hasOption("t")) {
        tls = true;
    }

    boolean auth = false;
    String user = null;
    String password = null;
    if (cl.hasOption("A")) {
        auth = true;
        if (!cl.hasOption("u")) {
            usage("auth enabled, no user specified");
        } else {
            user = cl.getOptionValue("u");
        }
        if (!cl.hasOption("p")) {
            usage("auth enabled, no password specified");
        } else {
            password = cl.getOptionValue("p");
        }
    }

    if (cl.hasOption("v")) {
        mLog.info("SMTP server: " + host);
        mLog.info("Sender: " + sender);
        mLog.info("Recipient: " + recipient);
        mLog.info("File: " + file);
        mLog.info("TLS: " + tls);
        mLog.info("Auth: " + auth);
        if (auth) {
            mLog.info("User: " + user);
            char[] dummyPassword = new char[password.length()];
            Arrays.fill(dummyPassword, '*');
            mLog.info("Password: " + new String(dummyPassword));
        }
    }

    Properties props = System.getProperties();

    props.put("mail.smtp.host", host);

    if (auth) {
        props.put("mail.smtp.auth", "true");
    } else {
        props.put("mail.smtp.auth", "false");
    }

    if (tls) {
        props.put("mail.smtp.starttls.enable", "true");
    } else {
        props.put("mail.smtp.starttls.enable", "false");
    }

    // Disable certificate checking so we can test against
    // self-signed certificates
    props.put("mail.smtp.ssl.socketFactory", SocketFactories.dummySSLSocketFactory());

    Session session = Session.getInstance(props, null);
    session.setDebug(trace);

    try {
        // create a message
        MimeMessage msg = new ZMimeMessage(session, new ZSharedFileInputStream(file));
        InternetAddress[] address = { new JavaMailInternetAddress(recipient) };
        msg.setFrom(new JavaMailInternetAddress(sender));

        // attach the file to the message
        Transport transport = session.getTransport("smtp");
        transport.connect(null, user, password);
        transport.sendMessage(msg, address);

    } catch (MessagingException mex) {
        mex.printStackTrace();
        Exception ex = null;
        if ((ex = mex.getNextException()) != null) {
            ex.printStackTrace();
        }
        System.exit(1);
    }
}

From source file:registry.java

public static void main(String[] args) {
    Properties props = new Properties();

    // set smtp and imap to be our default 
    // transport and store protocols, respectively
    props.put("mail.transport.protocol", "smtp");
    props.put("mail.store.protocol", "imap");

    // /* w w  w  .  j  a va 2  s.c  om*/
    props.put("mail.smtp.class", "com.sun.mail.smtp.SMTPTransport");
    props.put("mail.imap.class", "com.sun.mail.imap.IMAPStore");

    Session session = Session.getInstance(props, null);
    //session.setDebug(true);

    // Retrieve all configured providers from the Session
    System.out.println("\n------ getProviders()----------");
    Provider[] providers = session.getProviders();
    for (int i = 0; i < providers.length; i++) {
        System.out.println("** " + providers[i]);

        // let's remember some providers so that we can use them later
        // (I'm explicitly showing multiple ways of testing Providers)
        // BTW, no Provider "ACME Corp" will be found in the default
        // setup b/c its not in any javamail.providers resource files
        String s = null;
        if (((s = providers[i].getVendor()) != null) && s.startsWith("ACME Corp")) {
            _aProvider = providers[i];
        }

        // this Provider won't be found by default either
        if (providers[i].getClassName().endsWith("application.smtp"))
            _bProvider = providers[i];

        // this Provider will be found since com.sun.mail.imap.IMAPStore
        // is configured in javamail.default.providers
        if (providers[i].getClassName().equals("com.sun.mail.imap.IMAPStore")) {
            _sunIMAP = providers[i];
        }

        // this Provider will be found as well since there is an
        // Oracle SMTP transport configured by 
        // default in javamail.default.providers
        if (((s = providers[i].getVendor()) != null) && s.startsWith("Oracle")
                && providers[i].getType() == Provider.Type.TRANSPORT
                && providers[i].getProtocol().equalsIgnoreCase("smtp")) {
            _sunSMTP = providers[i];
        }
    }

    System.out.println("\n------ initial protocol defaults -------");
    try {
        System.out.println("imap: " + session.getProvider("imap"));
        System.out.println("smtp: " + session.getProvider("smtp"));
        // the NNTP provider will fail since we don't have one configured
        System.out.println("nntp: " + session.getProvider("nntp"));
    } catch (NoSuchProviderException mex) {
        System.out.println(">> This exception is OK since there is no NNTP Provider configured by default");
        mex.printStackTrace();
    }

    System.out.println("\n------ set new protocol defaults ------");
    // set some new defaults
    try {
        // since _aProvider isn't configured, this will fail
        session.setProvider(_aProvider); // will fail
    } catch (NoSuchProviderException mex) {
        System.out.println(">> Exception expected: _aProvider is null");
        mex.printStackTrace();
    }
    try {
        // _sunIMAP provider should've configured correctly; should work
        session.setProvider(_sunIMAP);
    } catch (NoSuchProviderException mex) {
        mex.printStackTrace();
    }
    try {
        System.out.println("imap: " + session.getProvider("imap"));
        System.out.println("smtp: " + session.getProvider("smtp"));
    } catch (NoSuchProviderException mex) {
        mex.printStackTrace();
    }

    System.out.println("\n\n----- get some stores ---------");
    // multiple ways to retrieve stores. these will print out the
    // string "imap:" since its the URLName for the store
    try {
        System.out.println("getStore(): " + session.getStore());
        System.out.println("getStore(Provider): " + session.getStore(_sunIMAP));
    } catch (NoSuchProviderException mex) {
        mex.printStackTrace();
    }

    try {
        System.out.println("getStore(imap): " + session.getStore("imap"));
        // pop3 will fail since it doesn't exist
        System.out.println("getStore(pop3): " + session.getStore("pop3"));
    } catch (NoSuchProviderException mex) {
        System.out.println(">> Exception expected: no pop3 provider");
        mex.printStackTrace();
    }

    System.out.println("\n\n----- now for transports/addresses ---------");
    // retrieve transports; these will print out "smtp:" (like stores did)
    try {
        System.out.println("getTransport(): " + session.getTransport());
        System.out.println("getTransport(Provider): " + session.getTransport(_sunSMTP));
        System.out.println("getTransport(smtp): " + session.getTransport("smtp"));
        System.out.println(
                "getTransport(Address): " + session.getTransport(new InternetAddress("mspivak@apilon")));
        // News will fail since there's no news provider configured
        System.out.println("getTransport(News): " + session.getTransport(new NewsAddress("rec.humor")));
    } catch (MessagingException mex) {
        System.out.println(">> Exception expected: no news provider configured");
        mex.printStackTrace();
    }
}

From source file:registry.java

public static void main(String[] args) {
    Properties props = new Properties();

    // set smtp and imap to be our default
    // transport and store protocols, respectively
    props.put("mail.transport.protocol", "smtp");
    props.put("mail.store.protocol", "imap");

    // /*w  ww .  ja  va  2 s .  c om*/
    props.put("mail.smtp.class", "com.sun.mail.smtp.SMTPTransport");
    props.put("mail.imap.class", "com.sun.mail.imap.IMAPStore");

    Session session = Session.getInstance(props, null);
    // session.setDebug(true);

    // Retrieve all configured providers from the Session
    System.out.println("\n------ getProviders()----------");
    Provider[] providers = session.getProviders();
    for (int i = 0; i < providers.length; i++) {
        System.out.println("** " + providers[i]);

        // let's remember some providers so that we can use them later
        // (I'm explicitly showing multiple ways of testing Providers)
        // BTW, no Provider "ACME Corp" will be found in the default
        // setup b/c its not in any javamail.providers resource files
        String s = null;
        if (((s = providers[i].getVendor()) != null) && s.startsWith("ACME Corp")) {
            _aProvider = providers[i];
        }

        // this Provider won't be found by default either
        if (providers[i].getClassName().endsWith("application.smtp"))
            _bProvider = providers[i];

        // this Provider will be found since com.sun.mail.imap.IMAPStore
        // is configured in javamail.default.providers
        if (providers[i].getClassName().equals("com.sun.mail.imap.IMAPStore")) {
            _sunIMAP = providers[i];
        }

        // this Provider will be found as well since there is a
        // Sun Microsystems SMTP transport configured by
        // default in javamail.default.providers
        if (((s = providers[i].getVendor()) != null) && s.startsWith("Sun Microsystems")
                && providers[i].getType() == Provider.Type.TRANSPORT
                && providers[i].getProtocol().equalsIgnoreCase("smtp")) {
            _sunSMTP = providers[i];
        }
    }

    System.out.println("\n------ initial protocol defaults -------");
    try {
        System.out.println("imap: " + session.getProvider("imap"));
        System.out.println("smtp: " + session.getProvider("smtp"));
        // the NNTP provider will fail since we don't have one configured
        System.out.println("nntp: " + session.getProvider("nntp"));
    } catch (NoSuchProviderException mex) {
        System.out.println(">> This exception is OK since there is no NNTP Provider configured by default");
        mex.printStackTrace();
    }

    System.out.println("\n------ set new protocol defaults ------");
    // set some new defaults
    try {
        // since _aProvider isn't configured, this will fail
        session.setProvider(_aProvider); // will fail
    } catch (NoSuchProviderException mex) {
        System.out.println(">> Exception expected: _aProvider is null");
        mex.printStackTrace();
    }
    try {
        // _sunIMAP provider should've configured correctly; should work
        session.setProvider(_sunIMAP);
    } catch (NoSuchProviderException mex) {
        mex.printStackTrace();
    }
    try {
        System.out.println("imap: " + session.getProvider("imap"));
        System.out.println("smtp: " + session.getProvider("smtp"));
    } catch (NoSuchProviderException mex) {
        mex.printStackTrace();
    }

    System.out.println("\n\n----- get some stores ---------");
    // multiple ways to retrieve stores. these will print out the
    // string "imap:" since its the URLName for the store
    try {
        System.out.println("getStore(): " + session.getStore());
        System.out.println("getStore(Provider): " + session.getStore(_sunIMAP));
    } catch (NoSuchProviderException mex) {
        mex.printStackTrace();
    }

    try {
        System.out.println("getStore(imap): " + session.getStore("imap"));
        // pop3 will fail since it doesn't exist
        System.out.println("getStore(pop3): " + session.getStore("pop3"));
    } catch (NoSuchProviderException mex) {
        System.out.println(">> Exception expected: no pop3 provider");
        mex.printStackTrace();
    }

    System.out.println("\n\n----- now for transports/addresses ---------");
    // retrieve transports; these will print out "smtp:" (like stores did)
    try {
        System.out.println("getTransport(): " + session.getTransport());
        System.out.println("getTransport(Provider): " + session.getTransport(_sunSMTP));
        System.out.println("getTransport(smtp): " + session.getTransport("smtp"));
        System.out.println(
                "getTransport(Address): " + session.getTransport(new InternetAddress("mspivak@apilon")));
        // News will fail since there's no news provider configured
        System.out.println("getTransport(News): " + session.getTransport(new NewsAddress("rec.humor")));
    } catch (MessagingException mex) {
        System.out.println(">> Exception expected: no news provider configured");
        mex.printStackTrace();
    }
}