Initial commit for OpenECOMP SDN-C N-C core

Change-Id: I30c52795ab821c4fdd18b55d202f10a76a01acfa
Signed-off-by: Dan Timoney <dtimoney@att.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/IsAvailableNodeExecutor.java b/sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/IsAvailableNodeExecutor.java
new file mode 100644
index 0000000..83f08b6
--- /dev/null
+++ b/sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/IsAvailableNodeExecutor.java
@@ -0,0 +1,117 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : SDN-C
+ * ================================================================================
+ * 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.openecomp.sdnc.sli.provider;
+
+import org.openecomp.sdnc.sli.SvcLogicContext;
+import org.openecomp.sdnc.sli.SvcLogicException;
+import org.openecomp.sdnc.sli.SvcLogicNode;
+import org.openecomp.sdnc.sli.SvcLogicResource;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.FrameworkUtil;
+import org.osgi.framework.ServiceReference;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class IsAvailableNodeExecutor extends SvcLogicNodeExecutor {
+
+	private static final Logger LOG = LoggerFactory
+			.getLogger(IsAvailableNodeExecutor.class);
+	
+	@Override
+	public SvcLogicNode execute(SvcLogicServiceImpl svc, SvcLogicNode node,
+			SvcLogicContext ctx) throws SvcLogicException {
+
+		String plugin = SvcLogicExpressionResolver.evaluate(
+				node.getAttribute("plugin"), node, ctx);
+		String resourceType = SvcLogicExpressionResolver.evaluate(
+				node.getAttribute("resource"), node, ctx);
+		String key = SvcLogicExpressionResolver.evaluateAsKey(
+				node.getAttribute("key"), node, ctx);
+		String pfx = SvcLogicExpressionResolver.evaluate(
+				node.getAttribute("pfx"), node, ctx);
+
+		String outValue = "failure";
+
+		if (LOG.isDebugEnabled()) {
+			LOG.debug("is-available node encountered - looking for resource class "
+					+ plugin);
+		}
+
+		BundleContext bctx = FrameworkUtil.getBundle(this.getClass())
+				.getBundleContext();
+
+		ServiceReference sref = bctx.getServiceReference(plugin);
+
+		if (sref != null) {
+			SvcLogicResource resourcePlugin = (SvcLogicResource) bctx
+					.getService(sref);
+
+			if (resourcePlugin != null) {
+				try {
+					switch (resourcePlugin.isAvailable(resourceType, key, pfx, ctx)) {
+					case SUCCESS:
+						outValue = "true";
+						break;
+					case NOT_FOUND:
+						outValue = "false";
+						break;
+					case FAILURE:
+					default:
+						outValue = "false";
+					}
+				} catch (SvcLogicException e) {
+					LOG.error("Caught exception from resource plugin", e);
+					outValue = "failure";
+				}
+			} else {
+				LOG.warn("Could not find SvcLogicResource object for plugin "
+						+ plugin);
+			}
+		} else {
+			LOG.warn("Could not find service reference object for plugin "
+					+ plugin);
+		}
+
+		SvcLogicNode nextNode = node.getOutcomeValue(outValue);
+		if (nextNode != null) {
+			if (LOG.isDebugEnabled()) {
+				LOG.debug("about to execute " + outValue + " branch");
+			}
+			return (nextNode);
+		}
+
+		nextNode = node.getOutcomeValue("Other");
+		if (nextNode != null) {
+			if (LOG.isDebugEnabled()) {
+				LOG.debug("about to execute Other branch");
+			}
+		} else {
+			if (LOG.isDebugEnabled()) {
+
+				LOG.debug("no "+outValue+" or Other branch found");
+			}
+		}
+		return (nextNode);
+	}
+
+
+}