<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="jnpf.dmsMapper.DmsFileExpiryMapper">
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<resultMap id="Item" type="jnpf.dmsEntity.storage.expiry.DmsFileExpiryItem">
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<id column="file_version_id" property="fileVersionId" typeHandler="jnpf.dmsDatabase.DmsUuidTypeHandler"/>
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<result column="document_id" property="documentId" typeHandler="jnpf.dmsDatabase.DmsUuidTypeHandler"/>
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<result column="tenant_id" property="tenantId"/>
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<result column="lifecycle_status" property="lifecycleStatus"/>
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<result column="effective_from" property="effectiveFrom"/>
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<result column="effective_to" property="effectiveTo"/>
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<result column="expiry_cursor" property="expiryCursor"/>
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<result column="search_task_id" property="searchTaskId"/>
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</resultMap>
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<!-- A cleanup receipt alone does not prove that older code updated the business version. -->
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<sql id="NEEDS_PROJECTION">
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NOT EXISTS (SELECT 1 FROM public.dms_file_expiry_cleanup c
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WHERE c.tenant_id=s.tenant_id AND c.file_version_id=s.file_version_id)
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OR EXISTS (SELECT 1 FROM public.dms_wenjian_ziyuan r
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JOIN public.dms_wenjian_banben b ON b.f_tenant_id=r.f_tenant_id AND b.wenjian_id=r.f_id
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AND b.f_id=r.dangqian_banben_id AND b.f_delete_mark IS NULL
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WHERE r.f_tenant_id=s.tenant_id AND r.f_delete_mark IS NULL AND b.biz_status='effective'
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AND b.wenjian_zhongxin_banben_id=CAST(s.file_version_id AS TEXT))
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</sql>
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<select id="candidates" resultMap="Item">
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SELECT s.tenant_id, s.document_id, s.file_version_id, s.lifecycle_status, s.effective_from, s.effective_to,
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s.effective_to AS expiry_cursor
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FROM public.dms_version_states s
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WHERE s.effective_to <= statement_timestamp()
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AND (s.lifecycle_status = 'EFFECTIVE' OR (s.lifecycle_status = 'EXPIRED' AND (<include refid="NEEDS_PROJECTION"/>)))
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<if test="after != null">
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AND (s.effective_to, s.tenant_id, s.file_version_id) >
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(#{after.expiryCursor}, #{after.tenantId}, #{after.fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler})
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</if>
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ORDER BY s.effective_to, s.tenant_id, s.file_version_id LIMIT #{limit}
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</select>
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<!-- Lock the document first, matching activation and validity changes. Discovery never locks states. -->
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<select id="tryLockDocument" resultType="java.util.UUID">
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SELECT id FROM public.dms_documents WHERE tenant_id=#{tenantId}
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AND id=#{documentId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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FOR UPDATE SKIP LOCKED
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</select>
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<select id="dueState" resultMap="Item">
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SELECT tenant_id, document_id, file_version_id, lifecycle_status, effective_from, effective_to
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FROM public.dms_version_states s WHERE tenant_id=#{tenantId}
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AND file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND lifecycle_status IN ('EFFECTIVE','EXPIRED') AND effective_to <= statement_timestamp()
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AND (lifecycle_status <> 'EXPIRED' OR (<include refid="NEEDS_PROJECTION"/>))
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</select>
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<insert id="enqueueCleanup">
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INSERT INTO public.dms_file_expiry_cleanup (tenant_id, file_version_id)
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VALUES (#{tenantId}, #{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler})
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ON CONFLICT (tenant_id, file_version_id) DO NOTHING
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</insert>
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<select id="cleanupCandidates" resultMap="Item">
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SELECT tenant_id, file_version_id, search_task_id FROM public.dms_file_expiry_cleanup
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WHERE completed_at IS NULL AND next_attempt_at <= statement_timestamp()
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ORDER BY next_attempt_at, tenant_id, file_version_id LIMIT #{limit}
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</select>
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<select id="lockCleanup" resultMap="Item">
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SELECT tenant_id, file_version_id, search_task_id FROM public.dms_file_expiry_cleanup
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WHERE tenant_id=#{tenantId} AND file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND completed_at IS NULL AND next_attempt_at <= statement_timestamp()
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FOR UPDATE SKIP LOCKED
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</select>
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<update id="updateCleanup">
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UPDATE public.dms_file_expiry_cleanup SET search_task_id=#{item.searchTaskId},
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completed_at=CASE WHEN #{done} THEN statement_timestamp() ELSE NULL END,
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attempts=attempts+1, last_error=#{error}, updated_at=statement_timestamp(),
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next_attempt_at=statement_timestamp() + (#{delay} * INTERVAL '1 second')
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WHERE tenant_id=#{item.tenantId}
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AND file_version_id=#{item.fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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</update>
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</mapper>
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