feat: Logging Weasyprint service versions

Refs: #DEV-11775
SchweizerischeBundesbahnen · Jun 10, 2024 · d806bcf · d806bcf
1 parent e6aa41a
commit d806bcf
Showing 1 changed file with 24 additions and 0 deletions.
diff --git a/...ch/sbb/polarion/extension/pdf/exporter/weasyprint/service/WeasyPrintServiceConnector.java b/...ch/sbb/polarion/extension/pdf/exporter/weasyprint/service/WeasyPrintServiceConnector.java
@@ -6,6 +6,7 @@
 import ch.sbb.polarion.extension.pdf.exporter.weasyprint.service.model.WeasyPrintServiceVersion;
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.polarion.core.util.logging.Logger;
 
 import javax.ws.rs.client.Client;
 import javax.ws.rs.client.ClientBuilder;
@@ -16,8 +17,16 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.lang.module.ModuleDescriptor;
+import java.util.concurrent.atomic.AtomicReference;
+
+import static com.polarion.core.util.StringUtils.isEmpty;
 
 public class WeasyPrintServiceConnector implements WeasyPrintConverter {
+    private static final Logger logger = Logger.getLogger(WeasyPrintServiceConnector.class);
+    private static final String WEASYPRINT_VERSION_HEADER = "Weasyprint-Version";
+    private static final String PYTHON_VERSION_HEADER = "Python-Version";
+    private static final AtomicReference<String> weasyprintVersion = new AtomicReference<>();
+    private static final AtomicReference<String> pythonVersion = new AtomicReference<>();
 
     @Override
     public byte[] convertToPdf(String htmlPage, WeasyPrintOptions weasyPrintOptions) {
@@ -36,6 +45,7 @@ public byte[] convertToPdf(String htmlPage, WeasyPrintOptions weasyPrintOptions)
                 if (response.getStatus() == Response.Status.OK.getStatusCode()) {
                     InputStream inputStream = response.readEntity(InputStream.class);
                     try {
+                        logWeasyprintVersionFromHeader(response);
                         return inputStream.readAllBytes();
                     } catch (IOException e) {
                         throw new IllegalStateException("Could not read response stream", e);
@@ -83,4 +93,18 @@ private String getWeasyPrintServiceBaseUrl() {
         return PdfExporterExtensionConfiguration.getInstance().getWeasyprintService();
     }
 
+    private void logWeasyprintVersionFromHeader(Response response) {
+        String actualWeasyprintVersion = response.getHeaderString(WEASYPRINT_VERSION_HEADER);
+        String actualPythonVersion = response.getHeaderString(PYTHON_VERSION_HEADER);
+
+        logWeasyprintVersion(actualWeasyprintVersion, weasyprintVersion, "Weasyprint");
+        logWeasyprintVersion(actualPythonVersion, pythonVersion, "Python");
+    }
+
+    private void logWeasyprintVersion(String actualVersion, AtomicReference<String> version, String nameInMessage) {
+        if (!isEmpty(actualVersion)
+                && !actualVersion.equals(version.getAndSet(actualVersion))) {
+            logger.info(String.format("Using Weasyprint Service with %s version: %s", nameInMessage, actualVersion));
+        }
+    }
 }