<?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.DmsPdfGenerationTaskMapper">
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<resultMap id="Task" type="jnpf.dmsEntity.storage.pdf.DmsPdfGenerationTask">
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<id column="file_version_id" property="fileVersionId" typeHandler="jnpf.dmsDatabase.DmsUuidTypeHandler"/>
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<result column="tenant_id" property="tenantId"/>
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<result column="source_checksum_sha256" property="sourceChecksumSha256"/>
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<result column="status" property="status"/>
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<result column="attempts" property="attempts"/>
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<result column="next_attempt_at" property="nextAttemptAt"/>
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<result column="lease_token" property="leaseToken"/>
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<result column="lease_until" property="leaseUntil"/>
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<result column="last_error" property="lastError"/>
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<result column="created_at" property="createdAt"/>
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<result column="started_at" property="startedAt"/>
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<result column="completed_at" property="completedAt"/>
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<result column="updated_at" property="updatedAt"/>
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</resultMap>
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<insert id="enqueue">
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INSERT INTO public.dms_pdf_generation_tasks
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(tenant_id, file_version_id, source_checksum_sha256)
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VALUES (#{tenantId}, #{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler},
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#{sourceChecksum})
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ON CONFLICT (tenant_id, file_version_id) DO UPDATE
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SET source_checksum_sha256=EXCLUDED.source_checksum_sha256, status='PENDING', attempts=0,
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next_attempt_at=statement_timestamp(), lease_token=NULL, lease_until=NULL,
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last_error=NULL, completed_at=NULL, updated_at=statement_timestamp()
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WHERE dms_pdf_generation_tasks.source_checksum_sha256 <> EXCLUDED.source_checksum_sha256
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</insert>
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<insert id="requeue">
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INSERT INTO public.dms_pdf_generation_tasks
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(tenant_id, file_version_id, source_checksum_sha256)
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VALUES (#{tenantId}, #{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler},
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#{sourceChecksum})
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ON CONFLICT (tenant_id, file_version_id) DO UPDATE
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SET source_checksum_sha256=EXCLUDED.source_checksum_sha256, status='PENDING', attempts=0,
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next_attempt_at=statement_timestamp(), lease_token=NULL, lease_until=NULL,
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last_error=NULL, started_at=NULL, completed_at=NULL, updated_at=statement_timestamp()
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WHERE dms_pdf_generation_tasks.source_checksum_sha256 <> EXCLUDED.source_checksum_sha256
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OR dms_pdf_generation_tasks.status IN ('SUCCEEDED','FAILED')
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</insert>
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<update id="clearInvalidPdf">
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UPDATE public.dms_file_objects o
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SET pdf_object_key=NULL, pdf_size_bytes=NULL, pdf_checksum_sha256=NULL,
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pdf_source_checksum_sha256=NULL, pdf_generated_at=NULL
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FROM public.dms_file_versions v
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WHERE o.tenant_id=#{tenantId}
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AND o.file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND o.pdf_object_key=#{objectKey}
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AND lower(o.pdf_source_checksum_sha256)=#{sourceChecksum}
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AND v.tenant_id=o.tenant_id AND v.id=o.file_version_id
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AND lower(v.checksum_sha256)=#{sourceChecksum}
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</update>
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<insert id="discover">
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INSERT INTO public.dms_pdf_generation_tasks
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(tenant_id, file_version_id, source_checksum_sha256)
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SELECT v.tenant_id, v.id, lower(v.checksum_sha256)
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FROM public.dms_file_versions v
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JOIN public.dms_file_objects o ON o.tenant_id=v.tenant_id AND o.file_version_id=v.id
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WHERE lower(v.file_name) ~ '\.(doc|docx)$'
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AND (o.pdf_object_key IS NULL OR o.pdf_source_checksum_sha256 IS DISTINCT FROM lower(v.checksum_sha256))
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ORDER BY o.created_at, o.id
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LIMIT #{limit}
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ON CONFLICT (tenant_id, file_version_id) DO UPDATE
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SET source_checksum_sha256=EXCLUDED.source_checksum_sha256, status='PENDING', attempts=0,
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next_attempt_at=statement_timestamp(), lease_token=NULL, lease_until=NULL,
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last_error=NULL, completed_at=NULL, updated_at=statement_timestamp()
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WHERE dms_pdf_generation_tasks.source_checksum_sha256 <> EXCLUDED.source_checksum_sha256
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</insert>
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<select id="candidates" resultMap="Task">
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SELECT tenant_id, file_version_id, source_checksum_sha256, status, attempts,
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next_attempt_at, lease_token, lease_until, last_error, created_at,
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started_at, completed_at, updated_at
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FROM public.dms_pdf_generation_tasks
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WHERE status IN ('PENDING','RUNNING') AND attempts < #{maxAttempts}
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AND next_attempt_at <= statement_timestamp()
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AND (lease_until IS NULL OR lease_until <= statement_timestamp())
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ORDER BY next_attempt_at, created_at, file_version_id
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LIMIT #{limit}
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</select>
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<update id="claim">
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UPDATE public.dms_pdf_generation_tasks
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SET status='RUNNING', lease_token=#{token},
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lease_until=statement_timestamp() + (#{leaseSeconds} * INTERVAL '1 second'),
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attempts=attempts+1, started_at=COALESCE(started_at, statement_timestamp()),
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updated_at=statement_timestamp()
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WHERE tenant_id=#{tenantId}
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AND file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND status IN ('PENDING','RUNNING') AND attempts < #{maxAttempts}
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AND next_attempt_at <= statement_timestamp()
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AND (lease_until IS NULL OR lease_until <= statement_timestamp())
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</update>
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<update id="writePdf">
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UPDATE public.dms_file_objects o
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SET pdf_object_key=#{pdf.objectKey}, pdf_size_bytes=#{pdf.sizeBytes},
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pdf_checksum_sha256=#{pdf.checksumSha256},
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pdf_source_checksum_sha256=#{pdf.sourceChecksumSha256},
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pdf_generated_at=statement_timestamp()
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FROM public.dms_file_versions v
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WHERE o.tenant_id=#{tenantId}
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AND o.file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND v.tenant_id=o.tenant_id AND v.id=o.file_version_id
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AND lower(v.checksum_sha256)=#{sourceChecksum}
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AND #{pdf.sourceChecksumSha256}=#{sourceChecksum}
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</update>
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<update id="succeed">
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UPDATE public.dms_pdf_generation_tasks
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SET status='SUCCEEDED', lease_token=NULL, lease_until=NULL, last_error=NULL,
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completed_at=statement_timestamp(), updated_at=statement_timestamp()
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WHERE tenant_id=#{tenantId}
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AND file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND lease_token=#{token}
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</update>
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<update id="fail">
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UPDATE public.dms_pdf_generation_tasks
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SET status=CASE WHEN #{terminal} THEN 'FAILED' ELSE 'PENDING' END,
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lease_token=NULL, lease_until=NULL, last_error=#{error},
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next_attempt_at=statement_timestamp() + (#{delaySeconds} * INTERVAL '1 second'),
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completed_at=CASE WHEN #{terminal} THEN statement_timestamp() ELSE NULL END,
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updated_at=statement_timestamp()
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WHERE tenant_id=#{tenantId}
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AND file_version_id=#{fileVersionId,jdbcType=OTHER,typeHandler=jnpf.dmsDatabase.DmsUuidTypeHandler}
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AND lease_token=#{token}
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</update>
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</mapper>
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