move actors code in drools-applications to policy/models

remove white-space in policy/models

Issue-ID: POLICY-1264

Change-Id: I8856fc7cd2c2a57af0031637870ca33c684bacf5
Signed-off-by: ning.xi <ning.xi@est.tech>

2 files changed, 109 insertions, 0 deletions

diff --git a/models-interactions/model-actors/actorServiceProvider/src/main/java/org/onap/policy/controlloop/actorserviceprovider/ActorService.java b/models-interactions/model-actors/actorServiceProvider/src/main/java/org/onap/policy/controlloop/actorserviceprovider/ActorService.java
new file mode 100644
index 000000000..809936146
--- /dev/null
+++ b/models-interactions/model-actors/actorServiceProvider/src/main/java/org/onap/policy/controlloop/actorserviceprovider/ActorService.java
@@ -0,0 +1,73 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ActorService
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.controlloop.actorserviceprovider;
+
+import com.google.common.collect.ImmutableList;
+
+import java.util.Iterator;
+import java.util.ServiceLoader;
+
+import org.onap.policy.controlloop.actorserviceprovider.spi.Actor;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ActorService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ActorService.class);
+    private static ActorService service;
+
+    // USed to load actors
+    private final ServiceLoader<Actor> loader;
+
+    private ActorService() {
+        loader = ServiceLoader.load(Actor.class);
+    }
+
+    /**
+     * Get the single instance.
+     *
+     * @return the instance
+     */
+    public static synchronized ActorService getInstance() {
+        if (service == null) {
+            service = new ActorService();
+        }
+        return service;
+    }
+
+    /**
+     * Get the actors.
+     *
+     * @return the actors
+     */
+    public ImmutableList<Actor> actors() {
+        Iterator<Actor> iter = loader.iterator();
+        logger.debug("returning actors");
+        while (iter.hasNext()) {
+            if (logger.isDebugEnabled()) {
+                logger.debug("Got {}", iter.next().actor());
+            }
+        }
+
+        return ImmutableList.copyOf(loader.iterator());
+    }
+}
diff --git a/models-interactions/model-actors/actorServiceProvider/src/main/java/org/onap/policy/controlloop/actorserviceprovider/spi/Actor.java b/models-interactions/model-actors/actorServiceProvider/src/main/java/org/onap/policy/controlloop/actorserviceprovider/spi/Actor.java
new file mode 100644
index 000000000..88f3c16eb
--- /dev/null
+++ b/models-interactions/model-actors/actorServiceProvider/src/main/java/org/onap/policy/controlloop/actorserviceprovider/spi/Actor.java
@@ -0,0 +1,36 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Actor
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Modifications Copyright (C) 2019 Nordix Foundation.
+ * ================================================================================
+ * 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.controlloop.actorserviceprovider.spi;
+
+import java.util.List;
+
+public interface Actor {
+
+    String actor();
+
+    List<String> recipes();
+
+    List<String> recipeTargets(String recipe);
+
+    List<String> recipePayloads(String recipe);
+
+}