Create interfaces for Policy Distribution

Created interfaces and some skeletal implementations. Implememtations to
be further developed in subsequent stories

Change-Id: If55be78e34c8783451cb9aa755a563bc0850e569
Issue-ID: POLICY-1029
Signed-off-by: mmis <michael.morris@ericsson.com>

7 files changed, 242 insertions, 0 deletions

diff --git a/plugins/forwarding-plugins/pom.xml b/plugins/forwarding-plugins/pom.xml
new file mode 100644
index 00000000..24985bbe
--- /dev/null
+++ b/plugins/forwarding-plugins/pom.xml
@@ -0,0 +1,40 @@
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2018 Ericsson. 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.
+
+  SPDX-License-Identifier: Apache-2.0
+  ============LICENSE_END=========================================================
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.policy.distribution</groupId>
+        <artifactId>plugins</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>forwarding-plugins</artifactId>
+    <name>${project.artifactId}</name>
+    <description>[${project.parent.artifactId}] module contains plugins for forwarding of policies.</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.distribution</groupId>
+            <artifactId>forwarding</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>
diff --git a/plugins/forwarding-plugins/src/main/java/org/onap/policy/distribution/forwarding/pap/engine/XacmlPapServletPolicyForwarder.java b/plugins/forwarding-plugins/src/main/java/org/onap/policy/distribution/forwarding/pap/engine/XacmlPapServletPolicyForwarder.java
new file mode 100644
index 00000000..8691a3ad
--- /dev/null
+++ b/plugins/forwarding-plugins/src/main/java/org/onap/policy/distribution/forwarding/pap/engine/XacmlPapServletPolicyForwarder.java
@@ -0,0 +1,37 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.distribution.forwarding.pap.engine;
+
+import java.util.Collection;
+import org.onap.policy.distribution.forwarding.PolicyForwarder;
+import org.onap.policy.distribution.model.Policy;
+
+/**
+ * Forwards policies to the XACML PAP Servlet
+ */
+public class XacmlPapServletPolicyForwarder implements PolicyForwarder {
+
+    @Override
+    public void forward(Collection<Policy> policies) {
+        // Send policies to PAP using common/policy-endpoints
+    }
+
+}
diff --git a/plugins/pom.xml b/plugins/pom.xml
index 0776f2fb..a7077de9 100644
--- a/plugins/pom.xml
+++ b/plugins/pom.xml
@@ -31,4 +31,9 @@
     <name>${project.artifactId}</name>
     <description>The module of Policy Distribution that holds plugins for custom policy reception and forwarding.</description>
     <packaging>pom</packaging>
+    
+    <modules>
+        <module>forwarding-plugins</module>
+        <module>reception-plugins</module>
+    </modules>
 </project>
diff --git a/plugins/reception-plugins/pom.xml b/plugins/reception-plugins/pom.xml
new file mode 100644
index 00000000..3ac93083
--- /dev/null
+++ b/plugins/reception-plugins/pom.xml
@@ -0,0 +1,40 @@
+<!--
+  ============LICENSE_START=======================================================
+   Copyright (C) 2018 Ericsson. 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.
+
+  SPDX-License-Identifier: Apache-2.0
+  ============LICENSE_END=========================================================
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.policy.distribution</groupId>
+        <artifactId>plugins</artifactId>
+        <version>2.0.0-SNAPSHOT</version>
+    </parent>
+
+    <artifactId>reception-plugins</artifactId>
+    <name>${project.artifactId}</name>
+    <description>[${project.parent.artifactId}] module contains plugins for reception of policies.</description>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.onap.policy.distribution</groupId>
+            <artifactId>reception</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PdpxPolicy.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PdpxPolicy.java
new file mode 100644
index 00000000..14d686be
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PdpxPolicy.java
@@ -0,0 +1,31 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.distribution.reception.decoding.pdpx;
+
+import org.onap.policy.distribution.model.Policy;
+import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
+
+/**
+ * A PDP-X Policy, decoded by a {@link PolicyDecoder}
+ */
+public class PdpxPolicy implements Policy {
+
+}
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PolicyDecoderToscaPdpx.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PolicyDecoderToscaPdpx.java
new file mode 100644
index 00000000..fa993579
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PolicyDecoderToscaPdpx.java
@@ -0,0 +1,45 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.distribution.reception.decoding.pdpx;
+
+import java.util.Collection;
+import java.util.Collections;
+import org.onap.policy.distribution.model.PolicyInput;
+import org.onap.policy.distribution.model.Tosca;
+import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
+
+/**
+ * Decodes PDP-X policies from a TOSCA file.
+ */
+public class PolicyDecoderToscaPdpx implements PolicyDecoder<Tosca, PdpxPolicy> {
+
+    @Override
+    public Collection<PdpxPolicy> decode(Tosca tosca) {
+        // Add logic for generating the policies from the TOSCA
+        return Collections.emptySet();
+    }
+
+    @Override
+    public boolean canHandle(PolicyInput policyInput) {
+        return policyInput.getClass().isAssignableFrom(Tosca.class);
+    }
+
+}
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/handling/sdc/SdcReceptionHandler.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/handling/sdc/SdcReceptionHandler.java
new file mode 100644
index 00000000..494f47f6
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/handling/sdc/SdcReceptionHandler.java
@@ -0,0 +1,44 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Ericsson. 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.
+ * 
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.distribution.reception.handling.sdc;
+
+import org.onap.policy.distribution.reception.handling.AbstractReceptionHandler;
+
+/**
+ * Handles reception of inputs from ONAP Service Design and Creation (SDC) from which policies may
+ * be decoded.
+ */
+public class SdcReceptionHandler extends AbstractReceptionHandler {
+
+    @Override
+    protected void initializeReception(String parameterGroupName) {
+        // Set up subscription to SDC
+    }
+
+    // Add functionality for receiving SDC distibutions and invoking AbstractReceptionHandler
+    // inputReceived()
+
+    @Override
+    public void destroy() {
+        // Tear down subscription etc
+    }
+
+}