Add additional logging

Author: wederbn

org.opentosca.bus/org.opentosca.bus.management.invocation.plugin.script/src/main/java/org/opentosca/bus/management/invocation/plugin/script/ManagementBusInvocationPluginScript.java

@@ -290,15 +290,17 @@ private TNodeTemplate getNodeTemplate(Message message, Csar csar, TRelationshipT
      * @param operation The script service operation to check
      */
     private void addOutputParametersToResultMap(final Map<String, String> resultMap, final Object result, final TOperation operation) throws UnsupportedEncodingException {
+        LOG.debug("Checking if operation has output parameters to update: {}", operation.getName());
         final boolean hasOutputParams = operation.getOutputParameters() != null;
         if (!hasOutputParams) {
+            LOG.debug("No output parameters defined!");
             return;
         }
+        LOG.debug("Adding output parameters to the response message.");
         if (!(result instanceof HashMap<?, ?>)) {
             LOG.warn("Result of type {} not supported. The bus should return a HashMap as result class when it is used as input.", result.getClass());
             return;
         }
-        LOG.debug("Adding output parameters to the response message.");
         final Map<?, ?> resultHashMap = (HashMap<?, ?>) result;
 
         // get ScriptResult part of the response which contains the parameters
@@ -317,11 +319,15 @@ private void addOutputParametersToResultMap(final Map<String, String> resultMap,
         // split result in line breaks as every parameter is returned in a separate "echo" command
         final String[] resultParameters = scriptResultString.split("[\\r\\n]+");
 
+        LOG.debug("Searching for {} output parameters...", operation.getOutputParameters().size());
         // add each parameter that is defined in the operation and passed back
         for (final TParameter outputParameter : operation.getOutputParameters()) {
+            LOG.debug("Searching for output parameter: {}", outputParameter.getName());
             // we expect the outputparameters at the end of the result in multiple lines
+            LOG.debug("Found {} lines in script result...", resultParameters.length);
             for (int i = resultParameters.length - 1; i >= 0; i--) {
                 if (resultParameters[i].startsWith(outputParameter.getName())) {
+                    LOG.debug("Found parameter with given name: {}", outputParameter.getName());
                     final String value = resultParameters[i].substring(resultParameters[i].indexOf("=") + 1);
 
                     LOG.debug("Adding parameter {} with value: {}", outputParameter, value);