Fix for Issue iluwatar#549 : Update Exception Handling Code in Aggregator Microservice (iluwatar#958)

*  Fix for Issue#iluwatar#549

Catch ClientProtocolException and Update Error Logs

* Fix indentation, checkstyle errors

Author: jarpit96

aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInformationClientImpl.java

@@ -22,6 +22,7 @@
  */
 package com.iluwatar.aggregator.microservices;
 
+import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.CloseableHttpClient;
@@ -49,8 +50,10 @@ public String getProductTitle() {
       try (CloseableHttpResponse httpResponse = httpClient.execute(httpGet)) {
         response = EntityUtils.toString(httpResponse.getEntity());
       }
-    } catch (IOException e) {
-      LOGGER.error("Exception caught.", e);
+    } catch (ClientProtocolException cpe) {
+      LOGGER.error("ClientProtocolException Occured", cpe);
+    } catch (IOException ioe) {
+      LOGGER.error("IOException Occurred", ioe);
     }
     return response;
   }

aggregator-microservices/aggregator-service/src/main/java/com/iluwatar/aggregator/microservices/ProductInventoryClientImpl.java

@@ -22,6 +22,7 @@
  */
 package com.iluwatar.aggregator.microservices;
 
+import org.apache.http.client.ClientProtocolException;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpGet;
 import org.apache.http.impl.client.CloseableHttpClient;
@@ -49,8 +50,10 @@ public int getProductInventories() {
       try (CloseableHttpResponse httpResponse = httpClient.execute(httpGet)) {
         response = EntityUtils.toString(httpResponse.getEntity());
       }
-    } catch (IOException e) {
-      LOGGER.error("Exception caught.", e);
+    } catch (ClientProtocolException cpe) {
+      LOGGER.error("ClientProtocolException Occured", cpe);
+    } catch (IOException ioe) {
+      LOGGER.error("IOException Occurred", ioe);
     }
     return Integer.parseInt(response);
   }