Logger: level of Ruby script messages now is WARN. All messages are shown in KNIME console.

Author: rssdev10

RubyScript/src/org/knime/ext/jruby/LoggerOutputStream.java

@@ -31,13 +31,21 @@ public void flush() throws IOException {
     @Override
     public final void write(char[] b, int off, int len) throws IOException {
         String str = new String(b, off, len);
+
+        // prevent output of empty strings
+        if (str.endsWith("\n")) {
+            str = str.substring(0, str.length()-1);
+        }
+        if (str.length() == 0) return;
+
         if (level == NodeLogger.LEVEL.INFO) {
             logger.info(str);
+        } else if (level == NodeLogger.LEVEL.WARN) {
+            logger.warn(str);
         } else if (level == NodeLogger.LEVEL.ERROR) {
             logger.error(str);
         } else {
             logger.debug(str);
         }
     }
 }
-

RubyScript/src/org/knime/ext/jruby/RubyScriptNodeModel.java

@@ -36,6 +36,7 @@
 import org.knime.core.node.ExecutionMonitor;
 import org.knime.core.node.InvalidSettingsException;
 import org.knime.core.node.NodeLogger;
+import org.knime.core.node.NodeLogger.LEVEL;
 import org.knime.core.node.NodeModel;
 import org.knime.core.node.NodeSettingsRO;
 import org.knime.core.node.NodeSettingsWO;
@@ -287,7 +288,7 @@ protected final BufferedDataTable[] execute(final BufferedDataTable[] inData,
         container.setLoadPaths(classpath);
 
         container.setOutput(new LoggerOutputStream(logger,
-                NodeLogger.LEVEL.INFO));
+                NodeLogger.LEVEL.WARN));
         container.setError(new LoggerOutputStream(logger,
                 NodeLogger.LEVEL.ERROR));