Java Serializer类代码示例

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public static void main(String[] args) throws IOException, InterruptedException{
    Serializer.registerClass(PingMessage.class);
    Serializer.registerClass(PongMessage.class);

    Server server = Network.createServer(5110);
    server.start();

    Client client = Network.connectToServer("localhost", 5110);
    client.start();

    server.addMessageListener(new ServerPingResponder(), PingMessage.class);
    client.addMessageListener(new ClientPingResponder(), PongMessage.class);

    System.out.println("Client: Sending ping message..");
    client.send(new PingMessage());
    
    Object obj = new Object();
    synchronized (obj){
        obj.wait();
    }
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public static void main(String[] args) throws IOException, InterruptedException {

        Serializer.registerClass(TestMessage.class);

        // Use this to test the client/server name version check
        //Server server = Network.createServer( "bad name", 42, 5110, 5110 );
        Server server = Network.createServer(5110, 5110);
        server.start();

        Client client = Network.connectToServer("localhost", 5110);
        client.start();

        client.addMessageListener(new TestThroughput(false), TestMessage.class);
        server.addMessageListener(new TestThroughput(true), TestMessage.class);

        Thread.sleep(1);

        TestMessage test = new TestMessage();
//        for( int i = 0; i < 10; i++ ) {
        while (true) {
//System.out.println( "sending." );
            client.send(test);
        }

        //Thread.sleep(5000);
    }
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
/**
 *  Converts a message to a ByteBuffer using the Serializer
 *  and the (short length) + data protocol.  If target is null
 *  then a 32k byte buffer will be created and filled.
 */
public static ByteBuffer messageToBuffer( Message message, ByteBuffer target )
{
    // Could let the caller pass their own in       
    ByteBuffer buffer = target == null ? ByteBuffer.allocate( 32767 + 2 ) : target;
    
    try {
        buffer.position( 2 );
        Serializer.writeClassAndObject( buffer, message );
        buffer.flip();
        short dataLength = (short)(buffer.remaining() - 2);
        buffer.putShort( dataLength );
        buffer.position( 0 );
        
        return buffer;
    } catch( IOException e ) {
        throw new RuntimeException( "Error serializing message", e );
    }
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
private void writeMethodCall(ByteBuffer buffer, RemoteMethodCallMessage call) throws IOException{
    buffer.putShort((short)call.objectId);
    buffer.putShort(call.methodId);
    buffer.putShort(call.invocationId);
    if (call.args == null){
        buffer.put((byte)0);
    }else{
        buffer.put((byte)call.args.length);

        // Right now it writes 0 for every null argument
        // and 1 for every non-null argument followed by the serialized
        // argument. For the future, using a bit set should be considered.
        for (Object obj : call.args){
            if (obj != null){
                buffer.put((byte)0x01);
                Serializer.writeClassAndObject(buffer, obj);
            }else{
                buffer.put((byte)0x00);
            }
        }
    }
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
private RemoteMethodCallMessage readMethodCall(ByteBuffer buffer) throws IOException{
    RemoteMethodCallMessage call = new RemoteMethodCallMessage();
    call.objectId = buffer.getShort();
    call.methodId = buffer.getShort();
    call.invocationId = buffer.getShort();
    int numArgs = buffer.get() & 0xff;
    if (numArgs > 0){
        Object[] args = new Object[numArgs];
        for (int i = 0; i < numArgs; i++){
            if (buffer.get() == (byte)0x01){
                args[i] = Serializer.readClassAndObject(buffer);
            }
        }
        call.args = args;
    }
    return call;
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public void writeObject(ByteBuffer buffer, Object object) throws IOException {
    if (!(object instanceof ZIPCompressedMessage)) return;

    ZIPCompressedMessage zipMessage = (ZIPCompressedMessage)object;
    Message message = zipMessage.getMessage();
    ByteBuffer tempBuffer = ByteBuffer.allocate(512000);
    Serializer.writeClassAndObject(tempBuffer, message);

    ByteArrayOutputStream byteArrayOutput = new ByteArrayOutputStream();
    ZipOutputStream zipOutput = new ZipOutputStream(byteArrayOutput);
    zipOutput.setLevel(zipMessage.getLevel());

    ZipEntry zipEntry = new ZipEntry("zip");

    zipOutput.putNextEntry(zipEntry);
    zipOutput.write(tempBuffer.array());
    zipOutput.flush();
    zipOutput.closeEntry();
    zipOutput.close();

    buffer.put(byteArrayOutput.toByteArray());
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public void writeObject(ByteBuffer buffer, Object object) throws IOException {
    if (!(object instanceof GZIPCompressedMessage)) return;
    Message message = ((GZIPCompressedMessage)object).getMessage();

    ByteBuffer tempBuffer = ByteBuffer.allocate(512000);
    Serializer.writeClassAndObject(tempBuffer, message);

    ByteArrayOutputStream byteArrayOutput = new ByteArrayOutputStream();
    GZIPOutputStream gzipOutput = new GZIPOutputStream(byteArrayOutput);

    gzipOutput.write(tempBuffer.array());
    gzipOutput.flush();
    gzipOutput.finish();
    gzipOutput.close();

    buffer.put(byteArrayOutput.toByteArray());
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public <T> T readObject(ByteBuffer data, Class<T> c) throws IOException {
    byte dimensionCount = data.get();
    if (dimensionCount == 0)
        return null;

    int[] dimensions = new int[dimensionCount];
    for (int i = 0; i < dimensionCount; i++)
            dimensions[i] = data.getInt();

    Serializer elementSerializer = null;

    Class elementClass = c;
    while (elementClass.getComponentType() != null)
        elementClass = elementClass.getComponentType();

    if (Modifier.isFinal(elementClass.getModifiers())) elementSerializer = Serializer.getSerializer(elementClass);
    // Create array and read in the data.
    T array = (T)Array.newInstance(elementClass, dimensions);
    readArray(elementSerializer, elementClass, data, array, 0, dimensions);
    return array;
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public void writeObject(ByteBuffer buffer, Object object) throws IOException {
    if (object == null){
        buffer.put((byte)0);
        return;
    }

    int[] dimensions = getDimensions(object);
    buffer.put((byte)dimensions.length);
    for (int dimension : dimensions) buffer.putInt(dimension);
    Serializer elementSerializer = null;

    Class elementClass = object.getClass();
    while (elementClass.getComponentType() != null) {
        elementClass = elementClass.getComponentType();
    }

    if (Modifier.isFinal(elementClass.getModifiers())) elementSerializer = Serializer.getSerializer(elementClass);
    writeArray(elementSerializer, buffer, object, 0, dimensions.length);
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
private void writeArray(Serializer elementSerializer, ByteBuffer buffer, Object array, int dimension, int dimensionCount) throws IOException {
    int length = Array.getLength(array);
    if (dimension > 0) {
        buffer.putInt(length);
    }
    // Write array data.
    boolean elementsAreArrays = dimension < dimensionCount - 1;
    for (int i = 0; i < length; i++) {
        Object element = Array.get(array, i);
        if (elementsAreArrays) {
            if (element != null) writeArray(elementSerializer, buffer, element, dimension + 1, dimensionCount);
        } else if (elementSerializer != null) {
            elementSerializer.writeObject(buffer, element);
        } else {
            // Each element could be a different type. Store the class with the object.
            Serializer.writeClassAndObject(buffer, element);
        }
    }
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public void read(Object entity, ByteBuffer in, boolean init){
    FieldTable table = getTable(entity.getClass());
    for (SyncFieldInfo fieldInfo : table){
        if ( (init && !fieldInfo.init)
          || (!init && !fieldInfo.sync) )
            continue;

        Field field = fieldInfo.field;
        try {
            Object obj = Serializer.readClassAndObject(in);
            field.set(entity, obj);
        } catch (Exception ex){
            ex.printStackTrace();
        }
    }
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
/**
 * @param gameData 游戏数据
 * @param gameName 游戏名称
 * @param versionName 游戏的版本
 * @param versionCode 游戏版本代码
 * @param serverPort 端服端运行端口
 * @throws IOException 
 */
public GameServer(GameData gameData, String gameName, String versionName, int versionCode, int serverPort) throws IOException {
    // 不要设置为true,这会导致在Network.createServer创建Server后，第二次再创建时报异常：
    // java.lang.RuntimeException: Serializer registry locked trying to register class:class com.jme3.network.message.SerializerRegistrationsMessage
    // 这个问题在JME3.1发生，在3.0时没有问题。
    Serializer.setReadOnly(false);
    
    this.gameData = gameData;
    this.gameName = gameName;
    this.versionName = versionName;
    this.versionCode = versionCode;
    this.serverPort = serverPort;
    server = Network.createServer(gameName, versionCode , serverPort, serverPort);
    server.addConnectionListener(this);
    server.addMessageListener(this);
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public void convert(String path) throws IOException {
        byte[] bytes = Files.readAllBytes(Paths.get(path));
        ByteBuffer buffer = ByteBuffer.wrap(bytes);
        buffer.position(2);
        ReplayData data = (ReplayData) Serializer.readClassAndObject(buffer);

        ExtraMetadata extra = findExtraMetadata(data);

        Path outputPath = Paths.get("converted", 
                Paths.get(path).getFileName().toString());

        ByteBuffer outBuffer = ByteBuffer.allocate(314572800); // 300 MB
//        serializer.convertFromOld(outBuffer, data, extra);
        outBuffer.flip();
        Path filePath = Files.createFile(outputPath);
        
        writeToFile(outBuffer, filePath);
    }
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public static void main(String[] args) throws IOException, InterruptedException{
    Serializer.registerClass(Savable.class, new SavableSerializer());

    createServer();

    Client client = Network.connectToServer("localhost", 5110);
    client.start();

    ObjectStore store = new ObjectStore(client);
    ServerAccess access = store.getExposedObject("access", ServerAccess.class, true);
    boolean result = access.attachChild("Models/Oto/Oto.mesh.xml");
    System.out.println(result);
}
 

import com.jme3.network.serializing.Serializer; //导入依赖的package包/类
public static void main(String[] args) throws IOException, InterruptedException{
    Serializer.registerClass(SomeObject.class);
    Serializer.registerClass(TestSerializationMessage.class);

    Server server = Network.createServer( 5110 );
    server.start();

    Client client = Network.connectToServer( "localhost", 5110 ); 
    client.start();

    server.addMessageListener(new TestSerialization(), TestSerializationMessage.class);
    client.send(new TestSerializationMessage(true));
    
    Thread.sleep(10000);
}