Adding code for dynamically generate Polices

* Update sdc tosca version to 1.4.1
* Define the objects to represents the policy
  used by OOF/Mutlicloud/AAI etc
* Integration into the distribution framework
  to update PdpxPolicy and add new File
  PolicyDecoderCsarPdpx to do decoder from CSAR
* Add two Test case including 2 VNFs, each VNF
  maps to 1 policy, so to generate 2 polices
* use @SerializedName make the variable name
  different with that in the out json field

Change-Id: Icc7175082063db8a245bbe576085cdf5a4b51adc
Issue-ID: POLICY-927
Signed-off-by: liboNet <libo.zhu@intel.com>

9 files changed, 861 insertions, 2 deletions

diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Attribute.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Attribute.java
new file mode 100644
index 00000000..c86bae9e
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Attribute.java
@@ -0,0 +1,53 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Intel. 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 com.google.gson.annotations.SerializedName;
+
+/**
+ * The attribute acts an abstraction belonging to or characteristic of an directive.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+class Attribute {
+    @SerializedName(value = "attribute_name")
+    private String attributeName;
+    @SerializedName(value = "attribute_value")
+    private String attributeValue;
+
+    public void setAttributeName(String attributeName) {
+        this.attributeName = attributeName;
+    }
+
+    public String getAttributeName() {
+        return attributeName;
+    }
+
+    public void setAttributeValue(String attributeValue) {
+        this.attributeValue = attributeValue;
+    }
+
+    public String getAttributeValue() {
+        return attributeValue;
+    }
+    
+}
+
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Content.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Content.java
new file mode 100644
index 00000000..264ba8a6
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Content.java
@@ -0,0 +1,71 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Intel. 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.List;
+import java.util.ArrayList;
+
+/**
+ * The content acts the high level abstraction which to be used by OOF to do Optimization.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+class Content {
+    private String resources;
+    private String identity;
+    private List<String> policyScope = new ArrayList<>();
+    private String policyType = "Optimization";
+    private List<FlavorFeature> flavorFeatures = new ArrayList<>();
+
+    public void setResources(String resources) {
+        this.resources = resources;
+    }
+
+    public String getResources() {
+        return resources;
+    }   
+
+    public void setIdentity(String identity) {
+        this.identity = identity;
+    }
+
+    public String getIdentity() {
+        return identity;
+    }
+
+    public List<String> getPolicyScope() {
+        return policyScope;
+    }
+
+    public void setPolicyType(String policyType) {
+        this.policyType = policyType;
+    }
+
+    public String getPolicyType() {
+        return policyType;
+    }
+
+    public List<FlavorFeature> getFlavorFeatures() {
+        return flavorFeatures;
+    }
+
+}
+
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Directive.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Directive.java
new file mode 100644
index 00000000..c04fc91d
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/Directive.java
@@ -0,0 +1,51 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Intel. 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.List;
+import java.util.ArrayList;
+
+
+/**
+ * The attribute acts an abstraction to indicate OOF which supports two different Models
+ * (Heat and TOSCA), two areas are wrapped: in the VNFC level to indicate the flavor, 
+ * in the hpa_feature level to contains specified information.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+class Directive{
+    private String type;
+    private List<Attribute> attributes = new ArrayList<>();
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public List<Attribute> getAttributes() {
+        return attributes;
+    }
+
+}
+
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/ExtractFromNode.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/ExtractFromNode.java
new file mode 100644
index 00000000..3fba96d4
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/ExtractFromNode.java
@@ -0,0 +1,263 @@
+/*-
+ * ============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.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.HashMap;
+
+import java.io.FileWriter;
+import java.io.Writer;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.annotations.SerializedName;
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
+
+import org.onap.sdc.tosca.parser.api.ISdcCsarHelper;
+import org.onap.sdc.tosca.parser.impl.SdcCsarHelperImpl;
+import org.onap.sdc.tosca.parser.impl.SdcPropertyNames;
+import org.onap.sdc.tosca.parser.impl.SdcToscaParserFactory;
+
+import org.onap.sdc.toscaparser.api.NodeTemplate;
+import org.onap.sdc.toscaparser.api.CapabilityAssignment;
+import org.onap.sdc.toscaparser.api.CapabilityAssignments;
+import org.onap.sdc.toscaparser.api.elements.Metadata;
+
+/**
+ * Extract concerned info from NodeTemplate, currently ONLY HPA Feature.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+public class ExtractFromNode {
+
+    private static final Logger LOGGER = FlexLogger.getLogger(ExtractFromNode.class);
+    private static final String CONTENT_RESOURCES = "name";
+    private static final String VDU_TYPE = "tosca.nodes.nfv.Vdu.Compute";
+    private static final String VDU_CP_TYPE = "tosca.nodes.nfv.VduCp";
+    private static final String VIRTUAL_MEM_SIZE_PATH = "virtual_memory#virtual_mem_size";
+    private static final String NUM_VIRTUAL_CPU_PATH = "virtual_cpu#num_virtual_cpu";
+    private static final String CPU_ARCHITECTURE_PATH = "virtual_cpu#cpu_architecture";
+    private static final String NUMBER_OF_PAGES_PATH = "virtual_memory#vdu_memory_requirements#numberOfPages";
+    private static final String BASIC_CAPABILITIES = "BasicCapabilities";
+    
+
+    ISdcCsarHelper sdcCsarHelper;
+    final Gson gson = new GsonBuilder()
+                            .serializeNulls()
+                            .setPrettyPrinting()
+                            .disableHtmlEscaping()
+                            .create();
+
+
+    public void setSdcCsarHelper(ISdcCsarHelper sdcCsarHelper) {
+        this.sdcCsarHelper = sdcCsarHelper;
+    }
+
+    /*
+     * ExtractInfo from VNF , each VNF may includes more than one VDUs and CPs return new generated PdpxPolicy 
+     * if it has got Hpa feature info or else return null.
+     * 
+     * @param node the NodeTemplate
+     * @return the extracted info from input node
+     * @throws PolicyDecodingException if extract fails
+     */
+    public PdpxPolicy extractInfo(NodeTemplate node) throws PolicyDecodingException {
+        PdpxPolicy pdpxPolicy = new PdpxPolicy();
+        Content content = pdpxPolicy.getContent();
+
+        String outputFile = sdcCsarHelper.getNodeTemplateMetadata(node).getValue("name");
+        outputFile += ".json";
+        LOGGER.debug("the meta data of this nodetemplate = " + sdcCsarHelper.getNodeTemplateMetadata(node));
+        LOGGER.debug("outputFile = " + outputFile);
+
+        List<NodeTemplate> lnodeChild = sdcCsarHelper.getNodeTemplateChildren(node);
+        LOGGER.debug("the size of lnodeChild = " + lnodeChild.size());
+
+        //Store all the VDUs under one VNF
+        List<NodeTemplate> lnodeVdu = new ArrayList<>();
+        //Store all the Cps under one VNF
+        List<NodeTemplate> lnodeVduCp = new ArrayList<>();
+        for ( NodeTemplate nodeChild : lnodeChild) {
+            String type = sdcCsarHelper.getTypeOfNodeTemplate(nodeChild);
+            LOGGER.debug("the type of this nodeChild = " + type);
+            LOGGER.debug("the meta data of this nodetemplate = " + sdcCsarHelper.getNodeTemplateMetadata(nodeChild));
+            if ( type.equalsIgnoreCase(VDU_TYPE)) {
+                lnodeVdu.add(nodeChild);
+            } else if ( type.equalsIgnoreCase(VDU_CP_TYPE)) {
+                lnodeVduCp.add(nodeChild);
+            }
+        }
+
+        LOGGER.debug("the size of vdu is =" + lnodeVdu.size());
+        LOGGER.debug("the size of cp is =" + lnodeVduCp.size());
+
+        extractInfoVdu(lnodeVdu, content);
+        extractInfoVduCp(lnodeVduCp, content);
+     
+        if (content.getFlavorFeatures().isEmpty() ){
+            return null;
+        }   
+
+        try (Writer writer = new FileWriter(outputFile)) {
+            gson.toJson(pdpxPolicy, writer);
+        } catch (Exception e) {
+            LOGGER.error("can't write generated policies to file " , e);
+            throw new PolicyDecodingException ("Exception caught when writing generated policies to file ", e);
+        }
+        return pdpxPolicy;
+    }
+
+
+    /*
+     * ExtractInfofromVdu, supported hpa features, All under the capability of tosca.nodes.nfv.Vdu.Compute.
+     * 
+     * @param lnodeVdu the list of Vdu node
+     * @param content to be change based on lnodeVdu
+     */
+    public void extractInfoVdu(final List<NodeTemplate> lnodeVdu, Content content) {
+        //each VDU <=> FlavorFeature
+        for ( NodeTemplate node : lnodeVdu) {
+            String id = sdcCsarHelper.getNodeTemplatePropertyLeafValue(node, "name");
+            FlavorFeature flavorFeature = new FlavorFeature();
+            flavorFeature.setId(id);
+            Attribute flavorAttribute = new Attribute();
+            flavorAttribute.setAttributeName("flavorName");
+            flavorAttribute.setAttributeValue("");
+            Directive flavorDirective = new Directive();
+            flavorDirective.setType("flavor_directive");
+            flavorDirective.getAttributes().add(flavorAttribute);
+            flavorFeature.getDirectives().add(flavorDirective);
+            
+            CapabilityAssignments capabilityAssignments = sdcCsarHelper.getCapabilitiesOf(node);
+            CapabilityAssignment capabilityAssignment = capabilityAssignments.getCapabilityByName("virtual_compute");
+            if (capabilityAssignment != null) {
+                generateBasicCapability(capabilityAssignment, flavorFeature);
+                generateHugePages(capabilityAssignment, flavorFeature);
+            }
+
+            content.getFlavorFeatures().add(flavorFeature);  
+        }
+    }
+
+    /*
+     * GenerateBasicCapability, supported hpa features, All under the capability of tosca.nodes.nfv.Vdu.Compute.
+     *
+     * @param capabilityAssignment represents the capability of node
+     * @param flavorFeature represents all the features of specified flavor
+     */
+    private void generateBasicCapability(final CapabilityAssignment capabilityAssignment, FlavorFeature flavorFeature){
+            //the format is xxx MB/GB like 4096 MB
+            String virtualMemSize = sdcCsarHelper.getCapabilityPropertyLeafValue(capabilityAssignment,
+                VIRTUAL_MEM_SIZE_PATH);
+            if (virtualMemSize != null) {
+                LOGGER.debug("the virtualMemSize = " + virtualMemSize);
+                HpaFeatureAttribute hpaFeatureAttribute = generateHpaFeatureAttribute("virtualMemSize", virtualMemSize);
+                FlavorProperty flavorProperty = new FlavorProperty();
+                flavorProperty.setHpaFeature(BASIC_CAPABILITIES);
+                flavorProperty.getHpaFeatureAttributes().add(hpaFeatureAttribute);
+                flavorFeature.getFlavorProperties().add(flavorProperty);
+            }
+            
+            //the format is int like 2 
+            String numVirtualCpu = sdcCsarHelper.getCapabilityPropertyLeafValue(capabilityAssignment,
+                NUM_VIRTUAL_CPU_PATH);
+            if (numVirtualCpu != null) {
+                LOGGER.debug("the numVirtualCpu = " + numVirtualCpu);
+                HpaFeatureAttribute hpaFeatureAttribute = generateHpaFeatureAttribute("numVirtualCpu", numVirtualCpu);
+                String cpuArchitecture = sdcCsarHelper.getCapabilityPropertyLeafValue
+                        (capabilityAssignment,CPU_ARCHITECTURE_PATH);
+                FlavorProperty flavorProperty = new FlavorProperty();
+                flavorProperty.setHpaFeature(BASIC_CAPABILITIES);
+                if (cpuArchitecture != null) {
+                    flavorProperty.setArchitecture(cpuArchitecture);
+                }
+                flavorProperty.getHpaFeatureAttributes().add(hpaFeatureAttribute);
+                flavorFeature.getFlavorProperties().add(flavorProperty);
+            }
+    }
+
+    /*
+     * GenerateHpaFeatureAttribute based on the value of featureValue.
+     * the format: "hpa-attribute-key": "pciVendorId", "hpa-attribute-value": "1234", "operator": "=", "unit": "xxx".
+     *
+     * @param hpaAttributeKey get from the high layer tosca DM
+     * @param featureValue get from the high layer tosca DM
+     * @return the format used in underlayer component
+     */
+    private HpaFeatureAttribute generateHpaFeatureAttribute(final String hpaAttributeKey, final String featureValue){
+
+        HpaFeatureAttribute hpaFeatureAttribute = new HpaFeatureAttribute();
+        hpaFeatureAttribute.setHpaAttributeKey(hpaAttributeKey);
+        String tmp = featureValue.replace(" ","");
+        String pattern = "(\\D*)(\\d+)(\\D*)";
+        Pattern r = Pattern.compile(pattern);
+        Matcher m = r.matcher(tmp);
+        if (m.find()) {
+            LOGGER.debug("operator = " + m.group(1));
+            LOGGER.debug("value = " + m.group(2));
+            LOGGER.debug("unit = " + m.group(3));
+            hpaFeatureAttribute.setOperator(m.group(1));
+            hpaFeatureAttribute.setHpaAttributeValue(m.group(2));
+            hpaFeatureAttribute.setUnit(m.group(3));
+        }
+        return hpaFeatureAttribute;
+    }
+
+    /*
+     * GenerateHugePages, supported hpa features, All under the capability of tosca.nodes.nfv.Vdu.Compute.
+     *
+     * @param capabilityAssignment represents the capability of node
+     * @param flavorFeature represents all the features of specified flavor
+     */
+    private void generateHugePages(final CapabilityAssignment capabilityAssignment, FlavorFeature flavorFeature){
+            //the format is a map like: {"schema-version": "0", "schema-location": "", "platform-id": "generic", 
+            // "mandatory": true, "configuration-value": "2 MB"}
+            String numberOfPages = sdcCsarHelper.getCapabilityPropertyLeafValue(capabilityAssignment,
+                NUMBER_OF_PAGES_PATH);
+            if (numberOfPages != null) {
+                LOGGER.debug("the virtualMemSize = " + numberOfPages);
+            //TODO add HugePages support
+            }
+    }
+
+    /* 
+     * ExtractInfoVduCp, supposted hpa features, under the virtual_network_interface_requirements of
+     * tosca.nodes.nfv.VduCp. 
+     * 
+     * @param lnodeVduCp the list of VduCp node
+     * @param content to be change based on lnodeVduCp
+     */
+    @SuppressWarnings("unchecked")
+    public void extractInfoVduCp(final List<NodeTemplate> lnodeVduCp, Content content) {
+        for ( NodeTemplate node : lnodeVduCp) {
+        //TODO to add VDU cp Hpa feature extract
+        }
+    }
+
+}
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/FlavorFeature.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/FlavorFeature.java
new file mode 100644
index 00000000..551fbdee
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/FlavorFeature.java
@@ -0,0 +1,67 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Intel. 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.List;
+import java.util.ArrayList;
+
+/**
+ * The FlavorFeature includes all the specified flavor infos used in multicloud, it represents one VDU of TOSCA.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+class FlavorFeature {
+    private String id ;
+    private String type = "tosca.node.nfv.Vdu.Compute";
+    private List<Directive> directives = new ArrayList<>();
+    private List<FlavorProperty> flavorProperties = new ArrayList<>();
+    
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getId() {
+        return id;
+    }
+
+    public void setType(String type) {
+        this.type = type;
+    }
+
+    public String getType() {
+        return type;
+    }
+
+    public List<FlavorProperty>  getFlavorProperties() {
+        return flavorProperties;
+    }
+
+    public List<Directive> getDirectives() {
+        return directives;
+    }
+
+    @Override
+    public String toString() {
+        return "{ id = " + id + ", type = " + type + ", \n" + "directivies:["+directives + ",\n"
+            + flavorProperties + "}";
+    }
+}
+
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/FlavorProperty.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/FlavorProperty.java
new file mode 100644
index 00000000..552164c5
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/FlavorProperty.java
@@ -0,0 +1,91 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Intel. 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.List;
+import java.util.ArrayList;
+
+import com.google.gson.annotations.SerializedName;
+
+/**
+ * The FlavorProperty includes all the properties of Flavor.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+class FlavorProperty{
+    @SerializedName(value = "hpa-feature")
+    private String hpaFeature;
+    private String mandatory = "true";
+    private String architecture = "generic";
+    @SerializedName(value = "hpa-version")
+    private String hpaVersion = "v1";
+    private List<Directive> directives = new ArrayList<>();
+    @SerializedName(value = "hpa-feature-attributes")
+    private List<HpaFeatureAttribute> hpaFeatureAttributes = new ArrayList<>();
+
+    public void setHpaFeature(String hpaFeature) {
+        this.hpaFeature = hpaFeature;
+    }
+
+    public String getHpaFeature() {
+        return hpaFeature;
+    }
+
+    public void setMandatory(String mandatory) {
+        this.mandatory = mandatory;
+    }
+
+    public String getMandatory() {
+        return mandatory;
+    }
+
+    public void setArchitecture(String architecture) {
+        this.architecture = architecture;
+    }
+
+    public String getArchitecture() {
+        return architecture;
+    }
+
+    public void setHpaVersion(String hpaVersion) {
+        this.hpaVersion = hpaVersion;
+    }
+
+    public String getHpaVersion() {
+        return hpaVersion;
+    }
+
+    public List<Directive> getDirectives() {
+        return directives;
+    }
+
+    public List<HpaFeatureAttribute> getHpaFeatureAttributes() {
+        return hpaFeatureAttributes;
+    }
+
+    @Override
+    public String toString() {
+        return "{ hpaFeature:" + hpaFeature + ", mandatory = " + mandatory + ",architecture:" + architecture
+            + ", hpaFeatureAttributes : [" + hpaFeatureAttributes + "]";
+    }
+
+}
+
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/HpaFeatureAttribute.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/HpaFeatureAttribute.java
new file mode 100644
index 00000000..7574ee87
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/HpaFeatureAttribute.java
@@ -0,0 +1,74 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2018 Intel. 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 com.google.gson.annotations.SerializedName;
+
+/**
+ * The HpaFeatureAttribute represents a way to provide match expression.
+ *
+ * @author Libo Zhu (libo.zhu@intel.com)
+ */
+class HpaFeatureAttribute{
+    @SerializedName(value = "hpa-attribute-key")
+    private String hpaAttributeKey;
+    @SerializedName(value = "hap-attribute-value")
+    private String hpaAttributeValue;
+    private String operator;
+    private String unit;
+
+    public HpaFeatureAttribute(){}
+
+    public void setHpaAttributeKey(String hpaAttributeKey) {
+        this.hpaAttributeKey = hpaAttributeKey;
+    }
+    
+    public String getHpaAttributeKey() {
+        return hpaAttributeKey;
+    }
+
+    public void setHpaAttributeValue(String hpaAttributeValue) {
+        this.hpaAttributeValue = hpaAttributeValue;
+    }
+
+    public String getHpaAttributeValue() {
+        return hpaAttributeValue;
+    }
+
+    public void setOperator(String operator) {
+        this.operator = operator;
+    }
+
+    public String getOperator() {
+        return operator;
+    }
+    
+    public void setUnit(String unit) {
+        this.unit = unit;
+    }
+
+    public String getUnit() {
+        return unit;
+    }
+}
+
+    
+
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
index 135d2564..179024a8 100644
--- 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
@@ -28,14 +28,101 @@ import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
  */
 public class PdpxPolicy implements Policy {
 
+    private String service;
+    private String policyName;
+    private String description;
+    private String templateVersion;
+    private String version;
+    private String priority;
+    private String riskType;
+    private String riskLevel;
+    private String guard;
+    private Content content = new Content();
+
     @Override
     public String getPolicyName() {
-        return null;
+        return policyName;
     }
 
     @Override
     public String getPolicyType() {
-        return null;
+        return content.getPolicyType();
+    }
+
+    public void setService(String service) {
+        this.service = service;
+    }
+
+    public String getService() {
+        return service;
+    }    
+
+    public void setPolicyName(String policyName) {
+        this.policyName = policyName;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public String getDescription() {
+        return description;
     }
 
+    public void setTemplateVersion(String templateVersion) {
+        this.templateVersion = templateVersion;
+    }
+
+    public String getTemplateVersion() {
+        return templateVersion;
+    }
+
+    public String getVersion() {
+        return version;
+    }
+
+    public void setVersion(String version) {
+        this.version = version;
+    }
+
+    public String getPriority() {
+        return priority;
+    }
+
+    public void setPriority(String priority) {
+        this.priority = priority;
+    }
+
+    public String getGuard() {
+        return guard;
+    }
+
+    public void setGuard(String guard) {
+        this.guard = guard;
+    }
+
+    public String getRiskLevel() {
+        return riskLevel;
+    }
+
+    public void setRiskLevel(String riskLevel) {
+        this.riskLevel = riskLevel;
+    }
+
+    public String getRiskType() {
+        return riskType;
+    }
+
+    public void setRiskType(String riskType) {
+        this.riskType = riskType;
+    }
+
+    public Content getContent(){
+        return content;
+    }
+
+    public void setContent(Content content) {
+        this.content = content;
+    }    
+
 }
diff --git a/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PolicyDecoderCsarPdpx.java b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PolicyDecoderCsarPdpx.java
new file mode 100644
index 00000000..0cd7bc16
--- /dev/null
+++ b/plugins/reception-plugins/src/main/java/org/onap/policy/distribution/reception/decoding/pdpx/PolicyDecoderCsarPdpx.java
@@ -0,0 +1,102 @@
+/*-
+ * ============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.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+import java.util.Collection;
+import java.util.Collections;
+
+
+import org.onap.policy.common.logging.flexlogger.FlexLogger;
+import org.onap.policy.common.logging.flexlogger.Logger;
+
+import org.onap.policy.distribution.model.PolicyInput;
+import org.onap.policy.distribution.model.Csar;
+import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
+import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
+
+import org.onap.sdc.tosca.parser.api.ISdcCsarHelper;
+import org.onap.sdc.tosca.parser.impl.SdcCsarHelperImpl;
+import org.onap.sdc.tosca.parser.impl.SdcToscaParserFactory;
+
+import org.onap.sdc.toscaparser.api.NodeTemplate;
+import org.onap.sdc.toscaparser.api.elements.Metadata;
+
+/**
+ * Decodes PDP-X policies from a TOSCA file.
+ */
+public class PolicyDecoderCsarPdpx implements PolicyDecoder<Csar, PdpxPolicy> {
+
+    private static final Logger LOGGER = FlexLogger.getLogger(PolicyDecoderCsarPdpx.class);
+
+    @Override
+    public Collection<PdpxPolicy> decode(Csar csar) throws PolicyDecodingException {
+        // logic for generating the policies from the CSAR. 
+        List<PdpxPolicy> lPdpxPolicy = new ArrayList<>();
+        ISdcCsarHelper sdcCsarHelper = parseCsar(csar);
+        List<NodeTemplate> lnodeVf = sdcCsarHelper.getServiceVfList();
+        LOGGER.debug("the size of Vf = " + lnodeVf.size());
+        ExtractFromNode extractFromNode = new ExtractFromNode();
+        extractFromNode.setSdcCsarHelper(sdcCsarHelper);
+        for ( NodeTemplate node : lnodeVf) {
+            PdpxPolicy ret = extractFromNode.extractInfo(node);
+            if (ret != null) {
+                lPdpxPolicy.add(ret);
+            }
+        }
+        return lPdpxPolicy;
+    }
+
+    @Override
+    public boolean canHandle(PolicyInput policyInput) {
+        return policyInput.getClass().isAssignableFrom(Csar.class);
+    }
+
+    /** 
+     * Parse the input Csar by SDC tosca tool.
+     *
+     * @param csar represents the service TOSCA Csar
+     * @return the object to represents the content of input csar
+     * @throws PolicyDecodingException if parse fails
+     */
+    public ISdcCsarHelper parseCsar(Csar csar)  throws PolicyDecodingException {
+        ISdcCsarHelper sdcCsarHelper ;
+        try {
+
+            SdcToscaParserFactory factory = SdcToscaParserFactory.getInstance();//Autoclosable
+
+            LOGGER.debug("tosca File Path = " + csar.getCsarPath());
+
+            File spoolFile = new File(csar.getCsarPath());
+
+            sdcCsarHelper = factory.getSdcCsarHelper(spoolFile.getAbsolutePath());
+
+        } catch (Exception e) {
+            LOGGER.error("Exception got in parseTosca",e);
+            throw new PolicyDecodingException ("Exception caught when passing the csar file to the parser ", e);
+        }
+        return sdcCsarHelper;
+    }
+
+}