Java tutorial
/* * Copyright (c) 2015 Shervin Asgari * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package no.asgari.civilization.server.model; import com.fasterxml.jackson.annotation.JsonIgnore; import com.fasterxml.jackson.annotation.JsonIgnoreProperties; import com.fasterxml.jackson.annotation.JsonRootName; import com.fasterxml.jackson.databind.annotation.JsonDeserialize; import com.fasterxml.jackson.databind.annotation.JsonSerialize; import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer; import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer; import lombok.Data; import lombok.NoArgsConstructor; import org.hibernate.validator.constraints.NotEmpty; import org.mongojack.Id; import org.mongojack.ObjectId; import javax.validation.constraints.NotNull; import java.time.LocalDateTime; import java.time.ZoneId; @Data @JsonRootName("chat") @NoArgsConstructor @JsonIgnoreProperties(ignoreUnknown = true) public class Chat { public static final String COL_NAME = "chat"; public static final String PBFID = "pbfId"; @Id @ObjectId private String id; private String pbfId; @NotNull private String username; @NotEmpty private String message; @JsonSerialize(using = LocalDateTimeSerializer.class) @JsonDeserialize(using = LocalDateTimeDeserializer.class) private LocalDateTime created = LocalDateTime.now(); @JsonIgnore public long getCreatedInMillis() { return created.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli(); } }