[POLICY-72] replace openecomp for drools-pdp

Change-Id: I8aa8e32d3ba10f7c655b50e97aaf6865514d4777
Signed-off-by: Guo Ruijing <ruijing.guo@intel.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/policy-utils/src/main/java/org/onap/policy/drools/utils/OrderedService.java b/policy-utils/src/main/java/org/onap/policy/drools/utils/OrderedService.java
new file mode 100644
index 00000000..75a3cd7d
--- /dev/null
+++ b/policy-utils/src/main/java/org/onap/policy/drools/utils/OrderedService.java
@@ -0,0 +1,41 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * policy-utils
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.drools.utils;
+
+/**
+ * This is a base interface that is used to control the order of a list
+ * of services (features) discovered via 'ServiceLoader'. See
+ * 'OrderedServiceImpl' for more details.
+ */
+public interface OrderedService
+{
+  /**
+   * @return an integer sequence number, which determines the order of a list
+   *	of objects implementing this interface
+   */
+  public int getSequenceNumber();
+  
+  
+  /**
+   * @return the name of the ordered service
+   */
+  public default String getName() {return this.getClass().getName();}
+}