#2714: loggingOfErrors

eo-maven-plugin/src/main/java/org/eolang/maven/VerifyMojo.java

@@ -24,6 +24,7 @@
 package org.eolang.maven;
 
 import com.jcabi.log.Logger;
+import com.jcabi.xml.XML;
 import com.yegor256.xsline.TrClasspath;
 import com.yegor256.xsline.TrDefault;
 import java.nio.file.Path;
@@ -105,6 +106,7 @@ void exec() {
      */
     private Optimization optimization() {
         Optimization opt = new OptTrain(
+            this::logErrors,
             new TrClasspath<>(
                 new TrDefault<>(),
                 "/org/eolang/parser/fail-on-errors.xsl",
@@ -117,4 +119,35 @@ private Optimization optimization() {
         return opt;
     }
 
+    /**
+     * Log errors of xml.
+     * @param xml XMIR.
+     * @return XML.
+     */
+    private XML logErrors(final XML xml) {
+        for (final XML error: xml.nodes("/program/errors/error")) {
+            final String message = Logger.format(
+                "%[file]s, line %s: %s",
+                xml.xpath("/program/@source").get(0),
+                error.xpath("@line").get(0),
+                error.xpath("text()").get(0)
+            );
+            final String severity = error.xpath("@severity").get(0);
+            switch (severity) {
+                case "warning":
+                    Logger.warn(this, message);
+                    break;
+                case "error":
+                case "critical":
+                    Logger.error(this, message);
+                    break;
+                default:
+                    throw new IllegalArgumentException(
+                        String.format("Incorrect severity: %s", severity)
+                    );
+            }
+        }
+        return xml;
+    }
+
 }