62 lines
3.3 KiB
Java
62 lines
3.3 KiB
Java
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package com.baiyue.lastleg.wallet;
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import com.baomidou.mybatisplus.core.toolkit.IdWorker;
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import com.baiyue.common.event.EventEnvelope;
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import com.baiyue.common.event.EventIdentifiers;
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import com.baiyue.common.event.EventPayloadCanonicalizer;
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import com.baiyue.common.event.EventPayloadHash;
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import com.baiyue.common.event.EventTypes;
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import com.baiyue.common.event.RegionCode;
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import com.baiyue.common.event.WalletCommandRequestedV1;
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import com.baiyue.lastleg.entity.LastlegEventOutbox;
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import com.baiyue.lastleg.mapper.LastlegEventOutboxMapper;
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import com.fasterxml.jackson.databind.JsonNode;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import lombok.RequiredArgsConstructor;
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import org.springframework.stereotype.Service;
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import java.math.BigDecimal;
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import java.time.Instant;
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import java.time.LocalDateTime;
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import java.time.ZoneOffset;
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@Service
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@RequiredArgsConstructor
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public class WalletCommandOutboxService {
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private final LastlegEventOutboxMapper mapper;
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private final ObjectMapper objectMapper;
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public String publish(String operation, long customerId, String businessType, String businessNo,
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BigDecimal amount, String remark, long aggregateVersion) {
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String eventKey = "WALLET_COMMAND:" + businessType + ':' + businessNo + ':' + operation + ':' + aggregateVersion;
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LastlegEventOutbox existing = mapper.findByEventKey(eventKey);
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if (existing != null) return eventId(existing.getPayloadJson());
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String idempotencyKey = businessType + ':' + businessNo + ':' + operation + ':' + aggregateVersion;
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WalletCommandRequestedV1 value = new WalletCommandRequestedV1(operation, customerId, businessType,
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businessNo, amount, remark, idempotencyKey, Instant.now());
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JsonNode payload = objectMapper.valueToTree(value);
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EventEnvelope envelope = new EventEnvelope(EventIdentifiers.newUuid(), EventTypes.WALLET_COMMAND_REQUESTED,
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WalletCommandRequestedV1.VERSION, Instant.now(), RegionCode.OVERSEAS, RegionCode.CN,
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String.valueOf(customerId), businessType, businessNo, aggregateVersion, null,
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EventIdentifiers.newUuid(), eventKey, null, payload,
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EventPayloadHash.sha256(EventPayloadCanonicalizer.canonicalize(payload))).requireValid();
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LastlegEventOutbox row = new LastlegEventOutbox();
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row.setId(IdWorker.getId()); row.setCustomerId(String.valueOf(customerId));
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row.setAggregateType(businessType); row.setAggregateId(businessNo);
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row.setEventType(envelope.eventType()); row.setEventVersion(envelope.eventVersion());
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row.setEventKey(eventKey); row.setPayloadJson(json(envelope)); row.setStatus("PENDING");
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row.setRetryCount(0); row.setCreatedAt(LocalDateTime.now(ZoneOffset.UTC));
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mapper.insert(row);
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return envelope.eventId();
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}
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private String eventId(String json) {
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try { return objectMapper.readValue(json, EventEnvelope.class).eventId(); }
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catch (Exception exception) { throw new IllegalStateException("资金指令事件快照损坏", exception); }
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}
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private String json(Object value) {
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try { return objectMapper.writeValueAsString(value); }
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catch (Exception exception) { throw new IllegalStateException("资金指令事件序列化失败", exception); }
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}
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}
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