update log4j to version 2.17.1

build.properties.sample

@@ -10,4 +10,4 @@ oai-pmh.dcatde.contributorID=https://dcat-ap.de/def/contributors/gdiDE
 
 oai-pmh.csw.serviceShowMetadata.URL=https://localhost:8080/inspire/srv/eng/xml_iso19139?uuid=%uid%
 
-oai-pmh.log.file=${catalina.base}/logs/open-nrw-ci-fassaden.log
+oai-pmh.log.file=${sys:catalina.base}/logs/open-nrw-ci-fassaden.log

pom.xml

@@ -44,8 +44,19 @@
             <scope>test</scope>
         </dependency>
         <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>${log4j.version}</version>
         </dependency>
         <dependency>
             <groupId>org.apache.camel</groupId>
@@ -214,6 +225,7 @@
     <properties>
         <camel.version>3.14.0</camel.version>
         <spring-boot.version>2.6.1</spring-boot.version>
+        <log4j.version>2.17.1</log4j.version>
 
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 

src/main/java/eu/odp/harvest/geo/oai/xslt/HttpAwareUriResolver.java

@@ -11,7 +11,8 @@
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.HttpClients;
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
-import org.apache.log4j.Logger;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
 
 import javax.xml.transform.Source;
 import javax.xml.transform.TransformerException;
@@ -24,7 +25,7 @@
  */
 public class HttpAwareUriResolver extends XsltUriResolver {
 
-    private final static Logger LOG = Logger.getLogger(HttpAwareUriResolver.class);
+    private final static Logger LOG = LogManager.getLogger(HttpAwareUriResolver.class);
 
     private static HttpClient httpClient = HttpClients.custom()
             .setConnectionManager(new PoolingHttpClientConnectionManager()).build();

src/main/resources/log4j2.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<Configuration>
+    <Appenders>
+        <RollingFile name="LOGFILE" fileName="${oai-pmh.log.file}" filePattern="${oai-pmh.log.file}%i">
+            <PatternLayout pattern="[%-5p] %d{ISO8601} [%t] %c - %m%n"/>
+            <SizeBasedTriggeringPolicy size="5 MB"/>
+            <DefaultRolloverStrategy max="3"/>
+        </RollingFile >
+    </Appenders>
+    <Loggers>
+        <Root level="info">
+            <AppenderRef ref="LOGFILE"/>
+        </Root>
+    </Loggers>
+</Configuration>