Go through this api to generate PDF

Author: flexable777

deploy/nais.yaml

@@ -66,6 +66,9 @@ spec:
     inbound:
       rules:
         - application: kabal-frontend
+    outbound:
+      rules:
+        - application: kabal-json-to-pdf
   azure:
     application:
       enabled: true

src/main/kotlin/no/nav/klage/document/api/DocumentController.kt

@@ -2,6 +2,7 @@ package no.nav.klage.document.api
 
 import io.swagger.annotations.Api
 import io.swagger.annotations.ApiOperation
+import io.swagger.annotations.ApiParam
 import no.nav.klage.document.api.views.CommentInput
 import no.nav.klage.document.api.views.CommentView
 import no.nav.klage.document.api.views.DocumentView
@@ -10,6 +11,10 @@ import no.nav.klage.document.domain.Document
 import no.nav.klage.document.service.CommentService
 import no.nav.klage.document.service.DocumentService
 import no.nav.klage.document.util.getLogger
+import org.springframework.http.HttpHeaders
+import org.springframework.http.HttpStatus
+import org.springframework.http.MediaType
+import org.springframework.http.ResponseEntity
 import org.springframework.web.bind.annotation.*
 import java.util.*
 
@@ -128,6 +133,29 @@ class DocumentController(
         return mapCommentToView(commentService.getComment(commentId = commentId))
     }
 
+    @ApiOperation(
+        value = "Generer PDF",
+        notes = "Generer PDF"
+    )
+    @ResponseBody
+    @GetMapping("/{documentId}/pdf")
+    fun getDocumentAsPDF(
+        @PathVariable("documentId") documentId: UUID
+    ): ResponseEntity<ByteArray> {
+        logger.debug("getDocumentAsPDF with id {}", documentId)
+
+        val pdfDocument = documentService.getDocumentAsPDF(documentId)
+
+        val responseHeaders = HttpHeaders()
+        responseHeaders.contentType = MediaType.APPLICATION_PDF
+        responseHeaders.add("Content-Disposition", "inline; filename=${pdfDocument.filename}.pdf")
+        return ResponseEntity(
+            pdfDocument.bytes,
+            responseHeaders,
+            HttpStatus.OK
+        )
+    }
+
     private fun mapToDocumentView(document: Document): DocumentView =
         DocumentView(
             id = document.id,

src/main/kotlin/no/nav/klage/document/clients/KabalJsonToPdfClient.kt

@@ -0,0 +1,34 @@
+package no.nav.klage.document.clients
+
+import no.nav.klage.document.domain.PDFDocument
+import no.nav.klage.document.util.getLogger
+import org.springframework.http.MediaType
+import org.springframework.stereotype.Component
+import org.springframework.web.reactive.function.client.WebClient
+
+@Component
+class KabalJsonToPdfClient(
+    private val kabalJsonToPdfWebClient: WebClient
+) {
+    companion object {
+        @Suppress("JAVA_CLASS_ON_COMPANION")
+        private val logger = getLogger(javaClass.enclosingClass)
+    }
+
+    fun getPDFDocument(json: String): PDFDocument {
+        return kabalJsonToPdfWebClient.post()
+            .uri { it.path("/topdf").build() }
+            .contentType(MediaType.APPLICATION_JSON)
+            .bodyValue(json)
+            .retrieve()
+            .toEntity(ByteArray::class.java)
+            .map {
+                val filename = it.headers["filename"]?.first()
+                PDFDocument(
+                    filename = filename ?: throw RuntimeException("Could not get filename from headers"),
+                    bytes = it.body ?: throw RuntimeException("Could not get PDF data")
+                )
+            }
+            .block() ?: throw RuntimeException("PDF could not be created")
+    }
+}

src/main/kotlin/no/nav/klage/document/config/KabalJsonToPdfClientConfiguration.kt

@@ -0,0 +1,26 @@
+package no.nav.klage.document.config
+
+import no.nav.klage.document.util.getLogger
+import org.springframework.context.annotation.Bean
+import org.springframework.context.annotation.Configuration
+import org.springframework.web.reactive.function.client.WebClient
+
+@Configuration
+class KabalJsonToPdfClientConfiguration(
+    private val webClientBuilder: WebClient.Builder
+) {
+
+    companion object {
+        @Suppress("JAVA_CLASS_ON_COMPANION")
+        private val logger = getLogger(javaClass.enclosingClass)
+    }
+
+    private var appURL = "http://kabal-json-to-pdf"
+
+    @Bean
+    fun kabalJsonToPdfWebClient(): WebClient {
+        return webClientBuilder
+            .baseUrl(appURL)
+            .build()
+    }
+}

src/main/kotlin/no/nav/klage/document/domain/PDFDocument.kt

@@ -0,0 +1,6 @@
+package no.nav.klage.document.domain
+
+data class PDFDocument(
+    val filename: String,
+    val bytes: ByteArray
+)

src/main/kotlin/no/nav/klage/document/service/DocumentService.kt

@@ -1,6 +1,8 @@
 package no.nav.klage.document.service
 
+import no.nav.klage.document.clients.KabalJsonToPdfClient
 import no.nav.klage.document.domain.Document
+import no.nav.klage.document.domain.PDFDocument
 import no.nav.klage.document.repositories.DocumentRepository
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
@@ -9,7 +11,10 @@ import java.util.*
 
 @Service
 @Transactional
-class DocumentService(private val documentRepository: DocumentRepository) {
+class DocumentService(
+    private val documentRepository: DocumentRepository,
+    private val kabalJsonToPdfClient: KabalJsonToPdfClient
+) {
 
     fun createDocument(json: String): Document {
         val now = LocalDateTime.now()
@@ -33,4 +38,8 @@ class DocumentService(private val documentRepository: DocumentRepository) {
         return documentRepository.getById(documentId)
     }
 
+    fun getDocumentAsPDF(documentId: UUID): PDFDocument {
+        return kabalJsonToPdfClient.getPDFDocument(documentRepository.getById(documentId).json)
+    }
+
 }