Examples of net.tomp2p.storage.Data

net.tomp2p.storage.Data
This class holds the data for the transport. The data is already serialized and a hash may be created. It is reasonable to create the hash on the remote peer, but not on the local peer. The remote peer uses the hash to tell the other peers, which version is stored and its used quite often. @author Thomas Bocek

      
      Map<Number640,Data> tmp = new HashMap<Number640,Data>();
      for(int i=0;i<5;i++) {
        byte[] me = new byte[480];
        Arrays.fill(me, (byte)(i-6));
        Data test = new Data(me);
        tmp.put(new Number640(rnd), test);
      }
      
      PutBuilder pb = master.put(new Number160("0x51")).dataMap(tmp);

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            for (Map.Entry<Number160, String> entry : friends.entrySet()) {
                // announce it on DHT
                Collection<String> tmp = new ArrayList<String>(friends.values());
                Map<Number160, Data> dataMap = new HashMap<Number160, Data>();
                for (String friend : tmp) {
                    dataMap.put(peer.peerID().xor(Number160.createHash(friend)), new Data(friend));
                }
                peer.put(entry.getKey()).dataMapContent(dataMap).start().awaitUninterruptibly();
            }
        }

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            Collection<Number160> taskIDs = message.getKeys();
            Map<Number160, Data> dataMap = new HashMap<Number160, Data>();
            for (Number160 taskId : taskIDs) {
                Number320 taskKey = new Number320(taskId, message.getSender().getPeerId());
                TaskStatus taskStatus = taskManager.taskStatus(taskKey);
                Data data = new Data(taskStatus);
                dataMap.put(taskId, data);
            }
            responseMessage.setDataMap(dataMap);
            if (logger.isDebugEnabled()) {
                logger.debug("finished task status for tasks " + taskIDs);

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    private FuturePut put(String key, String domain, String content, String data) throws IOException {
      Number160 locationKey = Number160.createHash(key);
      Number160 domainKey = Number160.createHash(domain);
      Number160 contentKey = Number160.createHash(content);
      MyData<String> myData = new MyData<String>().key(key).domain(domain).content(content).data(data);
      return peer.put(locationKey).domainKey(domainKey).data(contentKey, new Data(myData)).start();
    }

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    KeyPairGenerator gen = KeyPairGenerator.getInstance("DSA");
    KeyPair pair1 = gen.generateKeyPair();
    m1.publicKeyAndSign(pair1);


    Map<Number640, Data> dataMap = new HashMap<Number640, Data>();
    dataMap.put(new Number640(rnd), new Data(new byte[] { 3, 4, 5 }));
    dataMap.put(new Number640(rnd), new Data(new byte[] { 4, 5, 6, 7 }));
    dataMap.put(new Number640(rnd), new Data(new byte[] { 5, 6, 7, 8, 9 }));
    m1.setDataMap(new DataMap(dataMap));
    NavigableMap<Number640, Collection<Number160>> keysMap = new TreeMap<Number640, Collection<Number160>>();
    Set<Number160> set = new HashSet<Number160>(1);
    set.add(new Number160(rnd));
    keysMap.put(new Number640(rnd), set);

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    KeyPair pair1 = gen.generateKeyPair();
    m1.publicKeyAndSign(pair1);


    Map<Number640, Data> dataMap = new HashMap<Number640, Data>();
    
    dataMap.put(new Number640(rnd), new Data(new byte[] { 3, 4, 5 }).signNow(pair1.getPrivate(), factory));
    dataMap.put(new Number640(rnd), new Data(new byte[] { 4, 5, 6, 7 }).signNow(pair1.getPrivate(), factory));
    dataMap.put(new Number640(rnd), new Data(new byte[] { 5, 6, 7, 8, 9 }).signNow(pair1.getPrivate(), factory));
    m1.setDataMap(new DataMap(dataMap));
    NavigableMap<Number640, Collection<Number160>> keysMap = new TreeMap<Number640, Collection<Number160>>();
    Set<Number160> set = new HashSet<Number160>(1);
    set.add(new Number160(rnd));
    keysMap.put(new Number640(rnd), set);

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    KeyPairGenerator gen = KeyPairGenerator.getInstance("DSA");
    KeyPair pair1 = gen.generateKeyPair();
    m1.publicKeyAndSign(pair1);


    Map<Number640, Data> dataMap = new HashMap<Number640, Data>();
    dataMap.put(new Number640(rnd), new Data(new byte[] { 3, 4, 5 }).signNow(pair1, factory));
    dataMap.put(new Number640(rnd), new Data(new byte[] { 4, 5, 6, 7 }).signNow(pair1, factory));
    dataMap.put(new Number640(rnd), new Data(new byte[] { 5, 6, 7, 8, 9 }).signNow(pair1, factory));
    m1.setDataMap(new DataMap(dataMap));
    NavigableMap<Number640, Collection<Number160>> keysMap = new TreeMap<Number640, Collection<Number160>>();
    Set<Number160> set = new HashSet<Number160>(1);
    set.add(new Number160(rnd));
    keysMap.put(new Number640(rnd), set);

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  public void testBigData() throws Exception {
    final int size = 50 * 1024 * 1024;
    Random rnd = new Random(42);
    Message m1 = Utils2.createDummyMessage();
    Map<Number640, Data> dataMap = new HashMap<Number640, Data>();
    Data data = new Data(new byte[size]);
    dataMap.put(new Number640(rnd), data);
    m1.setDataMap(new DataMap(dataMap));
    Message m2 = encodeDecode(m1);
    compareMessage(m1, m2);
  }

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    m1.publicKeyAndSign(pair1);
    Map<Number640, Data> dataMap = new HashMap<Number640, Data>(1000);
    Random rnd = new Random(42l);
    for (int i = 0; i < 1000; i++) {
      dataMap.put(new Number640(new Number160(rnd), new Number160(rnd),
          new Number160(rnd), new Number160(rnd)), new Data(
          new byte[] { (byte) rnd.nextInt(), (byte) rnd.nextInt(),
              (byte) rnd.nextInt(), (byte) rnd.nextInt(),
              (byte) rnd.nextInt() }));
    }
    m1.setDataMap(new DataMap(dataMap));

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    public void testPut() throws Exception {
        for (int i = 0; i < stressTestLoopCount; i++) {
            configure();


            peer1DHT = getDHTPeer("node_1", client1Port);
            FuturePut futurePut = peer1DHT.put(Number160.createHash("key")).data(new Data("hallo")).start();
            futurePut.awaitUninterruptibly();
            assertTrue(futurePut.isSuccess());


            shutdown();
        }

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Related Classes of net.tomp2p.storage.Data

io.netty.buffer.ByteBuf

lupos.distributed.p2p.network.impl.TomP2P

net.tomp2p.connection.DSASignatureFactory

net.tomp2p.dht.AddBuilder

net.tomp2p.dht.PutBuilder

net.tomp2p.dht.StorageLayer

net.tomp2p.dht.StorageRPC

net.tomp2p.dht.TestAddUpdateTTL

net.tomp2p.dht.TestDHT

net.tomp2p.dht.TestH2H

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