FINERACT-2421: External Asset Owner create api

fineract-core/src/main/java/org/apache/fineract/commands/service/CommandWrapperBuilder.java

@@ -3732,6 +3732,13 @@ public class CommandWrapperBuilder {
         return this;
     }
 
+    public CommandWrapperBuilder createExternalAssetOwner() {
+        this.actionName = "CREATE";
+        this.entityName = "EXTERNAL_ASSET_OWNER";
+        this.href = "/external-asset-owners";
+        return this;
+    }
+
     public CommandWrapperBuilder buybackLoanToExternalAssetOwner(final Long loanId) {
         this.actionName = "BUYBACK";
         this.entityName = "LOAN";

fineract-core/src/main/java/org/apache/fineract/infrastructure/core/service/CommandParameterUtil.java

@@ -30,6 +30,7 @@ public final class CommandParameterUtil {
     public static final String CANCEL_COMMAND_VALUE = "cancel";
     public static final String UPDATE_COMMAND_VALUE = "update";
     public static final String DELETE_COMMAND_VALUE = "delete";
+    public static final String CREATE_COMMAND_VALUE = "create";
 
     private CommandParameterUtil() {}
 

fineract-core/src/main/java/org/apache/fineract/infrastructure/core/validator/ParseAndValidator.java

@@ -18,8 +18,12 @@
  */
 package org.apache.fineract.infrastructure.core.validator;
 
+import com.google.common.reflect.TypeToken;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
+import java.lang.reflect.Type;
+import java.util.Collection;
+import java.util.Map;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.fineract.infrastructure.core.api.JsonCommand;
@@ -48,4 +52,17 @@ public class ParseAndValidator {
                     dataValidator.getDataValidationErrors());
         }
     }
+
+    protected static void validateRequestBody(String json) {
+        if (StringUtils.isBlank(json)) {
+            throw new InvalidJsonException();
+        }
+    }
+
+    protected void validateForSupportedParameters(final String json, final Collection<String> supportedParameters,
+            final FromJsonHelper fromApiJsonHelper) {
+        final Type typeOfMap = new TypeToken<Map<String, Object>>() {}.getType();
+        fromApiJsonHelper.checkForUnsupportedParameters(typeOfMap, json, supportedParameters);
+    }
+
 }