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Example 1 with EzyCodecFactory

use of com.tvd12.ezyfoxserver.codec.EzyCodecFactory in project ezyfox-server by youngmonkeys.

the class EzyNioSocketAcceptorTest method newHandlerGroupManager.

private EzyHandlerGroupManager newHandlerGroupManager() {
    EzyNioSessionManager sessionManager = (EzyNioSessionManager) EzyNioSessionManagerImpl.builder().maxRequestPerSecond(new EzySimpleSessionManagementSetting.EzySimpleMaxRequestPerSecond()).tokenGenerator(new EzySimpleSessionTokenGenerator()).build();
    ExEzyByteToObjectDecoder decoder = new ExEzyByteToObjectDecoder();
    EzyCodecFactory codecFactory = mock(EzyCodecFactory.class);
    when(codecFactory.newDecoder(any())).thenReturn(decoder);
    ExecutorService statsThreadPool = EzyExecutors.newSingleThreadExecutor("stats");
    EzySocketStreamQueue streamQueue = new EzyBlockingSocketStreamQueue();
    EzySocketDisconnectionQueue disconnectionQueue = new EzyBlockingSocketDisconnectionQueue();
    EzySessionTicketsRequestQueues sessionTicketsRequestQueues = new EzySessionTicketsRequestQueues();
    EzySimpleSettings settings = new EzySimpleSettings();
    EzySimpleStreamingSetting streaming = settings.getStreaming();
    streaming.setEnable(true);
    EzySimpleServer server = new EzySimpleServer();
    server.setSettings(settings);
    server.setSessionManager(sessionManager);
    EzySimpleServerContext serverContext = new EzySimpleServerContext();
    serverContext.setServer(server);
    serverContext.init();
    EzySessionTicketsQueue socketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzySessionTicketsQueue webSocketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzyStatistics statistics = new EzySimpleStatistics();
    EzyHandlerGroupBuilderFactory handlerGroupBuilderFactory = EzyHandlerGroupBuilderFactoryImpl.builder().statistics(statistics).statsThreadPool(statsThreadPool).streamQueue(streamQueue).disconnectionQueue(disconnectionQueue).codecFactory(codecFactory).serverContext(serverContext).socketSessionTicketsQueue(socketSessionTicketsQueue).webSocketSessionTicketsQueue(webSocketSessionTicketsQueue).sessionTicketsRequestQueues(sessionTicketsRequestQueues).build();
    return EzyHandlerGroupManagerImpl.builder().handlerGroupBuilderFactory(handlerGroupBuilderFactory).build();
}
Also used : EzySimpleServer(com.tvd12.ezyfoxserver.EzySimpleServer) EzyHandlerGroupBuilderFactory(com.tvd12.ezyfoxserver.nio.factory.EzyHandlerGroupBuilderFactory) EzySimpleServerContext(com.tvd12.ezyfoxserver.context.EzySimpleServerContext) EzySimpleStreamingSetting(com.tvd12.ezyfoxserver.setting.EzySimpleStreamingSetting) EzyStatistics(com.tvd12.ezyfoxserver.statistics.EzyStatistics) EzyNioSessionManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyNioSessionManager) EzyCodecFactory(com.tvd12.ezyfoxserver.codec.EzyCodecFactory) EzySimpleSettings(com.tvd12.ezyfoxserver.setting.EzySimpleSettings) ExecutorService(java.util.concurrent.ExecutorService) EzySimpleStatistics(com.tvd12.ezyfoxserver.statistics.EzySimpleStatistics) EzySimpleSessionTokenGenerator(com.tvd12.ezyfoxserver.service.impl.EzySimpleSessionTokenGenerator)

Example 2 with EzyCodecFactory

use of com.tvd12.ezyfoxserver.codec.EzyCodecFactory in project ezyfox-server by youngmonkeys.

the class EzyHandlerGroupManagerImplTest method newHandlerGroupManager.

public EzyHandlerGroupManager newHandlerGroupManager() {
    EzyNioSessionManager sessionManager = (EzyNioSessionManager) EzyNioSessionManagerImpl.builder().maxRequestPerSecond(new EzySimpleSessionManagementSetting.EzySimpleMaxRequestPerSecond()).tokenGenerator(new EzySimpleSessionTokenGenerator()).build();
    ExEzyByteToObjectDecoder decoder = new ExEzyByteToObjectDecoder();
    EzyCodecFactory codecFactory = mock(EzyCodecFactory.class);
    when(codecFactory.newDecoder(any())).thenReturn(decoder);
    ExecutorService statsThreadPool = EzyExecutors.newSingleThreadExecutor("stats");
    EzySocketStreamQueue streamQueue = new EzyBlockingSocketStreamQueue();
    EzySocketDisconnectionQueue disconnectionQueue = new EzyBlockingSocketDisconnectionQueue();
    EzySessionTicketsRequestQueues sessionTicketsRequestQueues = new EzySessionTicketsRequestQueues();
    EzySimpleSettings settings = new EzySimpleSettings();
    EzySimpleStreamingSetting streaming = settings.getStreaming();
    streaming.setEnable(true);
    EzySimpleServer server = new EzySimpleServer();
    server.setSettings(settings);
    server.setSessionManager(sessionManager);
    EzySimpleServerContext serverContext = new EzySimpleServerContext();
    serverContext.setServer(server);
    serverContext.init();
    EzySessionTicketsQueue socketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzySessionTicketsQueue webSocketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzyStatistics statistics = new EzySimpleStatistics();
    EzyHandlerGroupBuilderFactory handlerGroupBuilderFactory = EzyHandlerGroupBuilderFactoryImpl.builder().statistics(statistics).statsThreadPool(statsThreadPool).streamQueue(streamQueue).disconnectionQueue(disconnectionQueue).codecFactory(codecFactory).serverContext(serverContext).socketSessionTicketsQueue(socketSessionTicketsQueue).webSocketSessionTicketsQueue(webSocketSessionTicketsQueue).socketSessionTicketsQueue(webSocketSessionTicketsQueue).sessionTicketsRequestQueues(sessionTicketsRequestQueues).build();
    return EzyHandlerGroupManagerImpl.builder().handlerGroupBuilderFactory(handlerGroupBuilderFactory).build();
}
Also used : EzySimpleServer(com.tvd12.ezyfoxserver.EzySimpleServer) EzyHandlerGroupBuilderFactory(com.tvd12.ezyfoxserver.nio.factory.EzyHandlerGroupBuilderFactory) EzySimpleServerContext(com.tvd12.ezyfoxserver.context.EzySimpleServerContext) EzySimpleStreamingSetting(com.tvd12.ezyfoxserver.setting.EzySimpleStreamingSetting) EzyStatistics(com.tvd12.ezyfoxserver.statistics.EzyStatistics) EzyNioSessionManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyNioSessionManager) EzyCodecFactory(com.tvd12.ezyfoxserver.codec.EzyCodecFactory) EzySimpleSettings(com.tvd12.ezyfoxserver.setting.EzySimpleSettings) ExecutorService(java.util.concurrent.ExecutorService) EzySimpleStatistics(com.tvd12.ezyfoxserver.statistics.EzySimpleStatistics) EzySimpleSessionTokenGenerator(com.tvd12.ezyfoxserver.service.impl.EzySimpleSessionTokenGenerator)

Example 3 with EzyCodecFactory

use of com.tvd12.ezyfoxserver.codec.EzyCodecFactory in project ezyfox-server by youngmonkeys.

the class EzyNioSocketReaderTest method newHandlerGroupManager.

private EzyHandlerGroupManager newHandlerGroupManager() {
    EzyNioSessionManager sessionManager = (EzyNioSessionManager) EzyNioSessionManagerImpl.builder().maxRequestPerSecond(new EzySimpleSessionManagementSetting.EzySimpleMaxRequestPerSecond()).tokenGenerator(new EzySimpleSessionTokenGenerator()).build();
    ExEzyByteToObjectDecoder decoder = new ExEzyByteToObjectDecoder();
    EzyCodecFactory codecFactory = mock(EzyCodecFactory.class);
    when(codecFactory.newDecoder(any())).thenReturn(decoder);
    ExecutorService statsThreadPool = EzyExecutors.newSingleThreadExecutor("stats");
    EzySocketStreamQueue streamQueue = new EzyBlockingSocketStreamQueue();
    EzySocketDisconnectionQueue disconnectionQueue = new EzyBlockingSocketDisconnectionQueue();
    EzySessionTicketsRequestQueues sessionTicketsRequestQueues = new EzySessionTicketsRequestQueues();
    EzySimpleSettings settings = new EzySimpleSettings();
    EzySimpleStreamingSetting streaming = settings.getStreaming();
    streaming.setEnable(true);
    EzySimpleServer server = new EzySimpleServer();
    server.setSettings(settings);
    server.setSessionManager(sessionManager);
    EzySimpleServerContext serverContext = new EzySimpleServerContext();
    serverContext.setServer(server);
    serverContext.init();
    EzySessionTicketsQueue socketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzySessionTicketsQueue webSocketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzyStatistics statistics = new EzySimpleStatistics();
    EzyHandlerGroupBuilderFactory handlerGroupBuilderFactory = EzyHandlerGroupBuilderFactoryImpl.builder().statistics(statistics).statsThreadPool(statsThreadPool).streamQueue(streamQueue).disconnectionQueue(disconnectionQueue).codecFactory(codecFactory).serverContext(serverContext).socketSessionTicketsQueue(socketSessionTicketsQueue).webSocketSessionTicketsQueue(webSocketSessionTicketsQueue).sessionTicketsRequestQueues(sessionTicketsRequestQueues).build();
    return EzyHandlerGroupManagerImpl.builder().handlerGroupBuilderFactory(handlerGroupBuilderFactory).build();
}
Also used : EzySimpleServer(com.tvd12.ezyfoxserver.EzySimpleServer) EzyHandlerGroupBuilderFactory(com.tvd12.ezyfoxserver.nio.factory.EzyHandlerGroupBuilderFactory) EzySimpleServerContext(com.tvd12.ezyfoxserver.context.EzySimpleServerContext) EzySimpleStreamingSetting(com.tvd12.ezyfoxserver.setting.EzySimpleStreamingSetting) EzyStatistics(com.tvd12.ezyfoxserver.statistics.EzyStatistics) EzyNioSessionManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyNioSessionManager) EzyCodecFactory(com.tvd12.ezyfoxserver.codec.EzyCodecFactory) EzySimpleSettings(com.tvd12.ezyfoxserver.setting.EzySimpleSettings) ExecutorService(java.util.concurrent.ExecutorService) EzySimpleStatistics(com.tvd12.ezyfoxserver.statistics.EzySimpleStatistics) EzySimpleSessionTokenGenerator(com.tvd12.ezyfoxserver.service.impl.EzySimpleSessionTokenGenerator)

Example 4 with EzyCodecFactory

use of com.tvd12.ezyfoxserver.codec.EzyCodecFactory in project ezyfox-server by youngmonkeys.

the class EzyWsHandlerTest method test.

@Test
public void test() throws Exception {
    EzySimpleSessionManagementSetting sessionManagementSetting = new EzySimpleSessionManagementSetting();
    EzyNioSessionManager sessionManager = (EzyNioSessionManager) EzyNioSessionManagerImpl.builder().maxRequestPerSecond(new EzySimpleSessionManagementSetting.EzySimpleMaxRequestPerSecond()).tokenGenerator(new EzySimpleSessionTokenGenerator()).build();
    EzyCodecFactory codecFactory = mock(EzyCodecFactory.class);
    ExecutorService statsThreadPool = EzyExecutors.newSingleThreadExecutor("stats");
    EzySocketStreamQueue streamQueue = new EzyBlockingSocketStreamQueue();
    EzySocketDisconnectionQueue disconnectionQueue = new EzyBlockingSocketDisconnectionQueue();
    EzySessionTicketsRequestQueues sessionTicketsRequestQueues = new EzySessionTicketsRequestQueues();
    EzySimpleSettings settings = new EzySimpleSettings();
    EzySimpleStreamingSetting streaming = settings.getStreaming();
    streaming.setEnable(true);
    EzySimpleServer server = new EzySimpleServer();
    server.setSettings(settings);
    server.setSessionManager(sessionManager);
    EzySimpleServerContext serverContext = new EzySimpleServerContext();
    serverContext.setServer(server);
    serverContext.init();
    EzySessionTicketsQueue socketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzySessionTicketsQueue webSocketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzyStatistics statistics = new EzySimpleStatistics();
    EzyHandlerGroupBuilderFactory handlerGroupBuilderFactory = EzyHandlerGroupBuilderFactoryImpl.builder().statistics(statistics).statsThreadPool(statsThreadPool).streamQueue(streamQueue).disconnectionQueue(disconnectionQueue).codecFactory(codecFactory).serverContext(serverContext).socketSessionTicketsQueue(socketSessionTicketsQueue).webSocketSessionTicketsQueue(webSocketSessionTicketsQueue).sessionTicketsRequestQueues(sessionTicketsRequestQueues).build();
    EzyHandlerGroupManager handlerGroupManager = EzyHandlerGroupManagerImpl.builder().handlerGroupBuilderFactory(handlerGroupBuilderFactory).build();
    EzySocketDataReceiver socketDataReceiver = EzySocketDataReceiver.builder().threadPoolSize(1).handlerGroupManager(handlerGroupManager).build();
    EzyWsHandler handler = EzyWsHandler.builder().sessionManagementSetting(sessionManagementSetting).sessionManager(sessionManager).handlerGroupManager(handlerGroupManager).socketDataReceiver(socketDataReceiver).build();
    Session session = mock(Session.class);
    handler.onConnect(session);
    handler.onMessage(session, "hello");
    handler.onMessage(session, "hello".getBytes(), 0, 5);
    handler.onError(session, new TimeoutException("timeout"));
    handler.onError(session, new IllegalStateException("maintain"));
    handler.onClose(session, 39999, "test");
    handler.onClose(session, 3000, "test");
    Session session2 = mock(Session.class);
    handler.onMessage(session2, "hello");
    handler.onMessage(session2, "hello".getBytes(), 0, 5);
    handler.onError(session2, new TimeoutException("timeout"));
    handler.onError(session2, new IllegalStateException("maintain"));
    handler.onClose(session2, 39999, "test");
    handler.onClose(session2, 3000, "test");
}
Also used : EzySimpleSessionManagementSetting(com.tvd12.ezyfoxserver.setting.EzySimpleSessionManagementSetting) EzyHandlerGroupBuilderFactory(com.tvd12.ezyfoxserver.nio.factory.EzyHandlerGroupBuilderFactory) EzySimpleServerContext(com.tvd12.ezyfoxserver.context.EzySimpleServerContext) EzyStatistics(com.tvd12.ezyfoxserver.statistics.EzyStatistics) TimeoutException(java.util.concurrent.TimeoutException) EzySimpleServer(com.tvd12.ezyfoxserver.EzySimpleServer) EzySimpleStreamingSetting(com.tvd12.ezyfoxserver.setting.EzySimpleStreamingSetting) EzyNioSessionManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyNioSessionManager) EzyWsHandler(com.tvd12.ezyfoxserver.nio.websocket.EzyWsHandler) EzyCodecFactory(com.tvd12.ezyfoxserver.codec.EzyCodecFactory) EzySimpleSettings(com.tvd12.ezyfoxserver.setting.EzySimpleSettings) EzyHandlerGroupManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyHandlerGroupManager) EzySocketDataReceiver(com.tvd12.ezyfoxserver.nio.socket.EzySocketDataReceiver) ExecutorService(java.util.concurrent.ExecutorService) EzySimpleStatistics(com.tvd12.ezyfoxserver.statistics.EzySimpleStatistics) EzySimpleSessionTokenGenerator(com.tvd12.ezyfoxserver.service.impl.EzySimpleSessionTokenGenerator) EzyNioSession(com.tvd12.ezyfoxserver.nio.entity.EzyNioSession) Session(org.eclipse.jetty.websocket.api.Session) Test(org.testng.annotations.Test) BaseTest(com.tvd12.test.base.BaseTest)

Example 5 with EzyCodecFactory

use of com.tvd12.ezyfoxserver.codec.EzyCodecFactory in project ezyfox-server by youngmonkeys.

the class EzyHandlerGroupManagerImplTest method test.

@Test
public void test() {
    EzyNioSessionManager sessionManager = (EzyNioSessionManager) EzyNioSessionManagerImpl.builder().maxRequestPerSecond(new EzySimpleSessionManagementSetting.EzySimpleMaxRequestPerSecond()).tokenGenerator(new EzySimpleSessionTokenGenerator()).build();
    ExEzyByteToObjectDecoder decoder = new ExEzyByteToObjectDecoder();
    EzyCodecFactory codecFactory = mock(EzyCodecFactory.class);
    when(codecFactory.newDecoder(any())).thenReturn(decoder);
    ExecutorService statsThreadPool = EzyExecutors.newSingleThreadExecutor("stats");
    EzySocketStreamQueue streamQueue = new EzyBlockingSocketStreamQueue();
    EzySocketDisconnectionQueue disconnectionQueue = new EzyBlockingSocketDisconnectionQueue();
    EzySessionTicketsRequestQueues sessionTicketsRequestQueues = new EzySessionTicketsRequestQueues();
    EzySimpleSettings settings = new EzySimpleSettings();
    EzySimpleStreamingSetting streaming = settings.getStreaming();
    streaming.setEnable(true);
    EzySimpleServer server = new EzySimpleServer();
    server.setSettings(settings);
    server.setSessionManager(sessionManager);
    EzySimpleServerContext serverContext = new EzySimpleServerContext();
    serverContext.setServer(server);
    serverContext.init();
    EzySessionTicketsQueue socketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzySessionTicketsQueue webSocketSessionTicketsQueue = new EzyBlockingSessionTicketsQueue();
    EzyStatistics statistics = new EzySimpleStatistics();
    EzyHandlerGroupBuilderFactory handlerGroupBuilderFactory = EzyHandlerGroupBuilderFactoryImpl.builder().statistics(statistics).statsThreadPool(statsThreadPool).streamQueue(streamQueue).disconnectionQueue(disconnectionQueue).codecFactory(codecFactory).serverContext(serverContext).socketSessionTicketsQueue(socketSessionTicketsQueue).webSocketSessionTicketsQueue(webSocketSessionTicketsQueue).socketSessionTicketsQueue(webSocketSessionTicketsQueue).sessionTicketsRequestQueues(sessionTicketsRequestQueues).build();
    EzyHandlerGroupManager handlerGroupManager = EzyHandlerGroupManagerImpl.builder().handlerGroupBuilderFactory(handlerGroupBuilderFactory).build();
    handlerGroupManager.removeHandlerGroup(null);
    EzySession session1 = mock(EzyAbstractSession.class);
    handlerGroupManager.removeHandlerGroup(session1);
    EzySession session2 = mock(EzyAbstractSession.class);
    EzyChannel channel2 = mock(EzyChannel.class);
    when(session2.getChannel()).thenReturn(channel2);
    handlerGroupManager.removeHandlerGroup(session2);
    EzyChannel channel3 = mock(EzyChannel.class);
    Session connection3 = mock(Session.class);
    when(channel3.getConnection()).thenReturn(connection3);
    EzyHandlerGroup handlerGroup3 = handlerGroupManager.newHandlerGroup(channel3, EzyConnectionType.WEBSOCKET);
    EzySession session3 = mock(EzyAbstractSession.class);
    when(session3.getChannel()).thenReturn(channel3);
    assert handlerGroupManager.getDataHandlerGroup(null) == null;
    assert handlerGroupManager.getDataHandlerGroup(session1) == null;
    assert handlerGroupManager.getDataHandlerGroup(session2) == null;
    assert handlerGroupManager.getWriterGroup(session3) == handlerGroup3;
    InetSocketAddress udpAddress = new InetSocketAddress("127.0.0.1", 12345);
    handlerGroupManager.mapSocketChannel(udpAddress, session3);
    assert handlerGroupManager.getSocketChannel(udpAddress) != null;
    handlerGroupManager.unmapHandlerGroup(udpAddress);
    handlerGroupManager.removeHandlerGroup(session3);
    handlerGroupManager.destroy();
}
Also used : EzyHandlerGroupBuilderFactory(com.tvd12.ezyfoxserver.nio.factory.EzyHandlerGroupBuilderFactory) EzySimpleServerContext(com.tvd12.ezyfoxserver.context.EzySimpleServerContext) InetSocketAddress(java.net.InetSocketAddress) EzyStatistics(com.tvd12.ezyfoxserver.statistics.EzyStatistics) EzyHandlerGroup(com.tvd12.ezyfoxserver.nio.handler.EzyHandlerGroup) EzySimpleServer(com.tvd12.ezyfoxserver.EzySimpleServer) EzySimpleStreamingSetting(com.tvd12.ezyfoxserver.setting.EzySimpleStreamingSetting) EzyNioSessionManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyNioSessionManager) EzyCodecFactory(com.tvd12.ezyfoxserver.codec.EzyCodecFactory) EzySimpleSettings(com.tvd12.ezyfoxserver.setting.EzySimpleSettings) EzySession(com.tvd12.ezyfoxserver.entity.EzySession) EzyHandlerGroupManager(com.tvd12.ezyfoxserver.nio.wrapper.EzyHandlerGroupManager) ExecutorService(java.util.concurrent.ExecutorService) EzySimpleStatistics(com.tvd12.ezyfoxserver.statistics.EzySimpleStatistics) EzySimpleSessionTokenGenerator(com.tvd12.ezyfoxserver.service.impl.EzySimpleSessionTokenGenerator) EzySession(com.tvd12.ezyfoxserver.entity.EzySession) Session(org.eclipse.jetty.websocket.api.Session) EzyAbstractSession(com.tvd12.ezyfoxserver.entity.EzyAbstractSession) Test(org.testng.annotations.Test) BaseTest(com.tvd12.test.base.BaseTest)

Aggregations

EzyCodecFactory (com.tvd12.ezyfoxserver.codec.EzyCodecFactory)9 EzyHandlerGroupBuilderFactory (com.tvd12.ezyfoxserver.nio.factory.EzyHandlerGroupBuilderFactory)7 ExecutorService (java.util.concurrent.ExecutorService)7 EzySimpleServer (com.tvd12.ezyfoxserver.EzySimpleServer)6 EzySimpleServerContext (com.tvd12.ezyfoxserver.context.EzySimpleServerContext)6 EzySimpleSessionTokenGenerator (com.tvd12.ezyfoxserver.service.impl.EzySimpleSessionTokenGenerator)6 EzySimpleSettings (com.tvd12.ezyfoxserver.setting.EzySimpleSettings)6 EzySimpleStreamingSetting (com.tvd12.ezyfoxserver.setting.EzySimpleStreamingSetting)6 EzySimpleStatistics (com.tvd12.ezyfoxserver.statistics.EzySimpleStatistics)6 EzyStatistics (com.tvd12.ezyfoxserver.statistics.EzyStatistics)6 EzyNioSessionManager (com.tvd12.ezyfoxserver.nio.wrapper.EzyNioSessionManager)5 BaseTest (com.tvd12.test.base.BaseTest)4 Test (org.testng.annotations.Test)4 EzyHandlerGroupManager (com.tvd12.ezyfoxserver.nio.wrapper.EzyHandlerGroupManager)3 EzyAbstractSession (com.tvd12.ezyfoxserver.entity.EzyAbstractSession)2 EzySocketDataReceiver (com.tvd12.ezyfoxserver.nio.socket.EzySocketDataReceiver)2 EzySimpleSessionManagementSetting (com.tvd12.ezyfoxserver.setting.EzySimpleSessionManagementSetting)2 Session (org.eclipse.jetty.websocket.api.Session)2 EzyObjectToByteEncoder (com.tvd12.ezyfox.codec.EzyObjectToByteEncoder)1 EzyObjectToStringEncoder (com.tvd12.ezyfox.codec.EzyObjectToStringEncoder)1