Split sequence generation to classess

[appc.git] / appc-config / appc-flow-controller / provider / src / main / java / org / onap / appc / flow / controller / node / CapabilitiesDataExtractor.java

diff --git a/appc-config/appc-flow-controller/provider/src/main/java/org/onap/appc/flow/controller/node/CapabilitiesDataExtractor.java b/appc-config/appc-flow-controller/provider/src/main/java/org/onap/appc/flow/controller/node/CapabilitiesDataExtractor.java
new file mode 100644 (file)
index 0000000..b740e4f
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+++ b/appc-config/appc-flow-controller/provider/src/main/java/org/onap/appc/flow/controller/node/CapabilitiesDataExtractor.java
@@ -0,0 +1,95 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. 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.appc.flow.controller.node;
+
+import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VF_MODULE;
+import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VM;
+import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VNF;
+import static org.onap.appc.flow.controller.utils.FlowControllerConstants.VNFC;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.DeserializationFeature;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import org.onap.appc.flow.controller.dbervices.FlowControlDBService;
+import org.onap.appc.flow.controller.interfaceData.Capabilities;
+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+
+public class CapabilitiesDataExtractor {
+
+  private static final EELFLogger log = EELFManager.getInstance().getLogger(CapabilitiesDataExtractor.class);
+
+  private final FlowControlDBService dbService;
+  private final ObjectMapper mapper;
+
+  public CapabilitiesDataExtractor() {
+    this(FlowControlDBService.initialise());
+  }
+
+  /**
+   * Ctor for tests, prefer to use default one
+   */
+  public CapabilitiesDataExtractor(FlowControlDBService dbService) {
+    this.dbService = dbService;
+
+    mapper = new ObjectMapper();
+    mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
+    mapper.enable(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY);
+  }
+
+  Capabilities getCapabilitiesData(SvcLogicContext ctx) throws SvcLogicException, IOException {
+
+    String fn = "FlowExecutorNode.getCapabilitiesData";
+    String capabilitiesData = dbService.getCapabilitiesData(ctx);
+    log.info(fn + "capabilitiesDataInput:" + capabilitiesData);
+
+    Capabilities capabilities = new Capabilities();
+    if (capabilitiesData == null) {
+      return capabilities;
+    }
+
+    JsonNode capabilitiesNode = mapper.readTree(capabilitiesData);
+    log.info("capabilitiesNode:" + capabilitiesNode.toString());
+
+    capabilities.getVfModule().addAll(extractParameterList(capabilitiesNode, VF_MODULE));
+    capabilities.getVnfc().addAll(extractParameterList(capabilitiesNode, VNFC));
+    capabilities.getVnf().addAll(extractParameterList(capabilitiesNode, VNF));
+    capabilities.getVm().addAll(extractParameterList(capabilitiesNode, VM));
+
+    log.info("Capabilities Output:" + capabilities.toString());
+
+    return capabilities;
+  }
+
+  private <T> List<T> extractParameterList(JsonNode root, String parameter) throws IOException {
+    JsonNode parameterNode = root.get(parameter);
+    if (parameterNode == null) {
+      return new ArrayList<>();
+    }
+    return mapper.readValue(parameterNode.toString(), new TypeReference<List<T>>() {});
+  }
+
+}
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