package jnpf.dmsService;
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import jnpf.base.UserInfo;
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import jnpf.dmsEntity.permission.entity.DmsDocumentEntity;
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import jnpf.dmsEntity.permission.entity.DmsFileVersionEntity;
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import jnpf.dmsEntity.permission.entity.DmsPermissionResourceEntity;
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import jnpf.dmsEntity.permission.enums.DmsPermissionAction;
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import jnpf.dmsEntity.permission.enums.DmsResourceType;
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import jnpf.dmsEntity.storage.entity.DmsFileObjectEntity;
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import jnpf.dmsEntity.storage.form.DmsFileRevisionRegisterForm;
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import jnpf.dmsEntity.storage.vo.DmsFileUploadVO;
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import jnpf.dmsIntegration.audit.DmsAuditAdapter;
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import jnpf.dmsMapper.DmsDocumentMapper;
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import jnpf.dmsMapper.DmsFileObjectMapper;
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import jnpf.dmsMapper.DmsFileVersionMapper;
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import jnpf.dmsMapper.DmsPermissionResourceMapper;
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import jnpf.dmsMapper.DmsVersionStateMapper;
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import jnpf.dmsPermission.DmsCurrentIdentity;
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import jnpf.dmsPermission.DmsPermissionError;
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import jnpf.dmsPermission.DmsPermissionException;
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import lombok.RequiredArgsConstructor;
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import org.springframework.dao.DuplicateKeyException;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.Locale;
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import java.util.Objects;
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@Service
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@RequiredArgsConstructor
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public class DmsFileRevisionService {
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private static final String SOURCE_PREFIX = "revision:";
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private final DmsCurrentIdentity currentIdentity;
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private final DmsPermissionDecisionService decisionService;
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private final DmsDocumentMapper documentMapper;
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private final DmsFileVersionMapper fileVersionMapper;
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private final DmsPermissionResourceMapper resourceMapper;
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private final DmsFileObjectMapper fileObjectMapper;
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private final DmsVersionStateMapper versionStateMapper;
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private final DmsAuditAdapter auditAdapter;
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@Transactional
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public DmsFileUploadVO register(DmsFileRevisionRegisterForm form, String serviceId) {
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UserInfo user = currentIdentity.requireUser();
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String tenantId = currentIdentity.tenantId(user);
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String sourceId = form.getSourceId().trim();
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decisionService.requireAllowed(DmsResourceType.DOCUMENT, form.getDocumentId(),
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DmsPermissionAction.UPDATE);
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fileObjectMapper.lockSource(tenantId, serviceId, sourceId);
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DmsFileUploadVO existing = fileObjectMapper.selectUploadBySource(tenantId, serviceId, sourceId);
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if (existing != null) {
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validateRetry(existing, form);
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return existing;
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}
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DmsDocumentEntity document = documentMapper.selectByTenantAndIdForUpdate(tenantId,
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form.getDocumentId());
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if (document == null) {
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throw DmsPermissionException.of(DmsPermissionError.RESOURCE_NOT_FOUND, "待修订文件不存在");
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}
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DmsFileVersionEntity current = fileVersionMapper.selectCurrentEffective(tenantId,
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form.getDocumentId());
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if (current == null || !Objects.equals(current.getId(), form.getBaseFileVersionId())) {
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throw DmsPermissionException.of(DmsPermissionError.REVISION_CONFLICT,
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"待修订版本已不是现行有效版本，请刷新后重试");
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}
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long nextVersionNo = fileVersionMapper.selectNextVersionNo(tenantId, form.getDocumentId());
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try {
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insertFileVersion(form, tenantId, user.getUserId(), nextVersionNo);
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insertRegistry(form, tenantId, serviceId, sourceId);
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insertFileObject(form, tenantId, user.getUserId(), serviceId, sourceId);
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int superseded = versionStateMapper.supersedeCurrent(tenantId, form.getDocumentId(),
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form.getBaseFileVersionId(), form.getVersionLabel().trim(), user.getUserId());
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if (superseded != 1) {
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throw DmsPermissionException.of(DmsPermissionError.REVISION_CONFLICT,
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"现行有效版本已发生变化，请刷新后重试");
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}
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versionStateMapper.insertRevisionEffective(tenantId, form.getDocumentId(),
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form.getBaseFileVersionId(), form.getFileVersionId(), sourceId,
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form.getRevisionReason().trim(), user.getUserId());
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} catch (DuplicateKeyException exception) {
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throw conflict("修订登记的资源 ID、source_id、版本号、版本标签或对象键已被占用", exception);
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}
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auditAdapter.dataChange("UPDATE", "模拟修订 DMS 文件", "dms_documents",
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form.getDocumentId().toString(),
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"{\"fileVersionId\":\"" + form.getBaseFileVersionId() + "\"}",
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"{\"fileVersionId\":\"" + form.getFileVersionId() + "\",\"versionLabel\":\""
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+ escapeJson(form.getVersionLabel().trim()) + "\"}");
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return fileObjectMapper.selectUploadBySource(tenantId, serviceId, sourceId);
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}
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private void insertFileVersion(DmsFileRevisionRegisterForm form, String tenantId,
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String userId, long versionNo) {
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DmsFileVersionEntity version = new DmsFileVersionEntity();
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version.setId(form.getFileVersionId());
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version.setTenantId(tenantId);
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version.setDocumentId(form.getDocumentId());
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version.setVersionNo(versionNo);
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version.setVersionLabel(form.getVersionLabel().trim());
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version.setFileName(form.getFileName().trim());
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version.setMimeType(trimToNull(form.getMimeType()));
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version.setSizeBytes(form.getSizeBytes());
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version.setChecksumSha256(form.getChecksumSha256().toLowerCase(Locale.ROOT));
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version.setPreparedBy(form.getPreparedBy().trim());
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version.setPreparedOn(form.getPreparedOn());
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version.setCreatedBy(userId);
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fileVersionMapper.insert(version);
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}
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private void insertRegistry(DmsFileRevisionRegisterForm form, String tenantId,
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String serviceId, String sourceId) {
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DmsPermissionResourceEntity registry = new DmsPermissionResourceEntity();
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registry.setId(form.getFileVersionId());
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registry.setTenantId(tenantId);
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registry.setResourceType(DmsResourceType.FILE_VERSION.name());
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registry.setSourceType("SYSTEM");
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registry.setSourceId(SOURCE_PREFIX + sourceId + ":version");
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registry.setRegisteredBy(serviceId);
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resourceMapper.insert(registry);
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}
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private void insertFileObject(DmsFileRevisionRegisterForm form, String tenantId, String userId,
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String serviceId, String sourceId) {
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DmsFileObjectEntity object = new DmsFileObjectEntity();
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object.setId(form.getFileObjectId());
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object.setTenantId(tenantId);
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object.setFileVersionId(form.getFileVersionId());
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object.setStoragePlatform(form.getStoragePlatform().trim());
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object.setBucketName(form.getBucketName().trim());
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object.setBasePath(trimToEmpty(form.getBasePath()));
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object.setObjectPath(form.getObjectPath().trim());
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object.setObjectName(form.getObjectName().trim());
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object.setSourceServiceId(serviceId);
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object.setSourceId(sourceId);
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object.setCreatedBy(userId);
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fileObjectMapper.insert(object);
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}
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private void validateRetry(DmsFileUploadVO existing, DmsFileRevisionRegisterForm form) {
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if (!Objects.equals(existing.getDocumentId(), form.getDocumentId())
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|| !Objects.equals(existing.getBaseFileVersionId(), form.getBaseFileVersionId())
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|| !Objects.equals(existing.getVersionLabel(), form.getVersionLabel().trim())
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|| !Objects.equals(existing.getFileName(), form.getFileName().trim())
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|| !Objects.equals(existing.getMimeType(), trimToNull(form.getMimeType()))
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|| !Objects.equals(existing.getSizeBytes(), form.getSizeBytes())
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|| !equalsIgnoreCase(existing.getChecksumSha256(), form.getChecksumSha256())
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|| !Objects.equals(existing.getPreparedBy(), form.getPreparedBy().trim())
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|| !Objects.equals(existing.getPreparedOn(), form.getPreparedOn())
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|| !Objects.equals(existing.getRevisionReason(), form.getRevisionReason().trim())) {
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throw DmsPermissionException.of(DmsPermissionError.IDEMPOTENCY_CONFLICT,
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"source_id 对应的修订内容与本次请求不一致");
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}
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}
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private String trimToNull(String value) {
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return value == null || value.trim().isEmpty() ? null : value.trim();
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}
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private String trimToEmpty(String value) {
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return value == null ? "" : value.trim();
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}
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private boolean equalsIgnoreCase(String left, String right) {
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return left == null ? right == null : right != null && left.equalsIgnoreCase(right);
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}
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private String escapeJson(String value) {
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return value.replace("\\", "\\\\").replace("\"", "\\\"");
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}
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private DmsPermissionException conflict(String message, Throwable cause) {
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DmsPermissionException exception = DmsPermissionException.of(DmsPermissionError.SOURCE_CONFLICT, message);
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exception.initCause(cause);
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return exception;
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}
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}
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