Load fonts on startup

Dockerfile

@@ -6,3 +6,4 @@ ENV DISABLE_PDF_GET="true"
 RUN mkdir out
 COPY templates templates
 COPY resources resources
+COPY fonts fonts

build.gradle

@@ -58,6 +58,7 @@ dependencies {
 
     implementation "org.jsoup:jsoup:$jsoup_version"
     implementation "com.fasterxml.jackson.core:jackson-core:$jackson_version"
+    implementation "com.fasterxml.jackson.module:jackson-module-kotlin:$jackson_version"
     implementation "com.fasterxml.jackson.datatype:jackson-datatype-jsr310:$jackson_version"
     implementation "javax.xml.bind:jaxb-api:2.1"
     implementation "org.glassfish.jaxb:jaxb-runtime:$jaxb_version"

fonts/config.json

@@ -0,0 +1,16 @@
+[
+  {
+    "family": "Source Sans Pro",
+    "path": "SourceSansPro-Regular.ttf",
+    "weight": 400,
+    "style": "NORMAL",
+    "subset": false
+  },
+  {
+    "family": "Source Sans Pro",
+    "path": "SourceSansPro-Bold.ttf",
+    "weight": 700,
+    "style": "NORMAL",
+    "subset": false
+  }
+]

src/main/kotlin/no/nav/pdfgen/Bootstrap.kt

@@ -5,6 +5,8 @@ package no.nav.pdfgen
 
 import com.fasterxml.jackson.databind.JsonNode
 import com.fasterxml.jackson.databind.ObjectMapper
+import com.fasterxml.jackson.module.kotlin.readValue
+import com.fasterxml.jackson.module.kotlin.registerKotlinModule
 import com.github.jknack.handlebars.Context
 import com.github.jknack.handlebars.Handlebars
 import com.github.jknack.handlebars.JsonNodeValueResolver
@@ -53,16 +55,20 @@ val APPLICATION_PDF = ContentType.parse("application/pdf")
 
 val collectorRegistry: CollectorRegistry = CollectorRegistry.defaultRegistry
 val objectMapper: ObjectMapper = ObjectMapper()
+        .registerKotlinModule()
 val base64encoder: Encoder = Base64.getEncoder()
 val dateFormat: DateTimeFormatter = DateTimeFormatter.ofPattern("dd.MM.yyyy")
 val templateRoot: Path = Paths.get("templates/")
 val imagesRoot: Path = Paths.get("resources/")
+val fontsRoot: Path = Paths.get("fonts/")
 val images = loadImages()
 val handlebars: Handlebars = Handlebars(FileTemplateLoader(templateRoot.toFile())).apply {
     registerNavHelpers(this)
     infiniteLoops(true)
 }
 
+val fonts: Array<FontMetadata> = objectMapper.readValue(Files.newInputStream(fontsRoot.resolve("config.json")))
+
 val log: Logger = LoggerFactory.getLogger("pdf-gen")
 
 fun main(args: Array<String>) {

src/main/kotlin/no/nav/pdfgen/Utils.kt

@@ -15,7 +15,6 @@ import java.awt.geom.AffineTransform
 import java.awt.image.AffineTransformOp
 import java.awt.image.AffineTransformOp.TYPE_BILINEAR
 import java.awt.image.BufferedImage
-import java.io.ByteArrayInputStream
 import java.io.ByteArrayOutputStream
 import java.io.InputStream
 import java.io.OutputStream
@@ -24,14 +23,21 @@ import javax.imageio.ImageIO
 class Utils
 
 val colorProfile: ByteArray = IOUtils.toByteArray(Utils::class.java.getResourceAsStream("/sRGB2014.icc"))
-val sourceSansProRegular: ByteArray = IOUtils.toByteArray(Utils::class.java.getResourceAsStream("/fonts/SourceSansPro-Regular.ttf"))
-val sourceSansProBold: ByteArray = IOUtils.toByteArray(Utils::class.java.getResourceAsStream("/fonts/SourceSansPro-Bold.ttf"))
+
+data class FontMetadata(
+    val family: String,
+    val path: String,
+    val weight: Int,
+    val style: BaseRendererBuilder.FontStyle,
+    val subset: Boolean
+)
 
 fun createPDFA(w3doc: Document, outputStream: OutputStream) = PdfRendererBuilder()
-        .useFont({ ByteArrayInputStream(sourceSansProRegular) }, "Source Sans Pro",
-                400, BaseRendererBuilder.FontStyle.NORMAL, false)
-        .useFont({ ByteArrayInputStream(sourceSansProBold) }, "Source Sans Pro", 700,
-                BaseRendererBuilder.FontStyle.NORMAL, false)
+        .apply {
+            for (font in fonts) {
+                useFont(fontsRoot.resolve(font.path).toFile(), font.family, font.weight, font.style, font.subset)
+            }
+        }
         // .useFastMode() wait with fast mode until it doesn't print a bunch of errors
         .useColorProfile(colorProfile)
         .useSVGDrawer(BatikSVGDrawer())
@@ -94,4 +100,4 @@ private fun scale(image: PDImageXObject, page: PDPage): ImageSize {
     }
 
     return ImageSize(width, height)
-}
+}