1 files changed, 175 insertions, 0 deletions
diff --git a/sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/CallNodeExecutor.java b/sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/CallNodeExecutor.java
new file mode 100644
index 00000000..284795bd
--- /dev/null
+++ b/sli/provider-base/src/main/java/org/onap/ccsdk/sli/core/sli/provider/base/CallNodeExecutor.java
@@ -0,0 +1,175 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : CCSDK
+ * ================================================================================
+ * 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.onap.ccsdk.sli.core.sli.provider.base;
+
+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
+import org.onap.ccsdk.sli.core.sli.SvcLogicException;
+import org.onap.ccsdk.sli.core.sli.SvcLogicExpression;
+import org.onap.ccsdk.sli.core.sli.SvcLogicGraph;
+import org.onap.ccsdk.sli.core.sli.SvcLogicNode;
+import org.onap.ccsdk.sli.core.sli.SvcLogicStore;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class CallNodeExecutor extends AbstractSvcLogicNodeExecutor {
+
+	private static final Logger LOG = LoggerFactory
+			.getLogger(CallNodeExecutor.class);
+
+	@Override
+	public SvcLogicNode execute(SvcLogicServiceBase svc, SvcLogicNode node, SvcLogicContext ctx)
+			throws SvcLogicException {
+
+		String outValue = "not-found";
+
+		SvcLogicGraph myGraph = node.getGraph();
+
+		if (myGraph == null)
+		{
+			LOG.debug("execute: getGraph returned null");
+		}
+		else
+		{
+			LOG.debug("execute: got SvcLogicGraph");
+		}
+
+		SvcLogicExpression moduleExpr = null;
+
+		String module = null;
+
+		moduleExpr = node.getAttribute("module");
+		if (moduleExpr != null)
+		{
+			module  = SvcLogicExpressionResolver.evaluate(moduleExpr, node, ctx);
+		}
+
+		if ((module == null) || (module.length() == 0))
+		{
+			if (myGraph != null)
+			{
+				module = myGraph.getModule();
+				LOG.debug("myGraph.getModule() returned "+module);
+			}
+		}
+
+		SvcLogicExpression rpcExpr = null;
+		String rpc = null;
+		rpcExpr = node.getAttribute("rpc");
+		if (rpcExpr != null)
+		{
+			rpc  = SvcLogicExpressionResolver.evaluate(rpcExpr, node, ctx);
+		}
+
+		if ((rpc == null) || (rpc.length() == 0))
+		{
+			if (myGraph != null)
+			{
+				rpc = myGraph.getRpc();
+				LOG.debug("myGraph.getRpc() returned "+rpc);
+			}
+		}
+
+		String mode = null;
+
+		moduleExpr = node.getAttribute("mode");
+		if (moduleExpr != null)
+		{
+			mode  = SvcLogicExpressionResolver.evaluate(moduleExpr, node, ctx);
+		}
+
+		if ((mode == null) || (mode.length() == 0))
+		{
+			if (myGraph != null)
+			{
+				mode = myGraph.getMode();
+
+				LOG.debug("myGraph.getMode() returned "+mode);
+			}
+		}
+
+		String version = null;
+
+		moduleExpr = node.getAttribute("version");
+		if (moduleExpr != null)
+		{
+			version  = SvcLogicExpressionResolver.evaluate(moduleExpr, node, ctx);
+		}
+
+		String parentGraph = ctx.getAttribute("currentGraph");
+        ctx.setAttribute("parentGraph", parentGraph);
+
+		SvcLogicStore store = svc.getStore();
+		String errorMessage = "Parent " + parentGraph + " failed to call child [" + module + "," + rpc + "," + version + "," + mode + "] because the graph could not be found";
+		boolean graphWasCalled = false;
+		if (store != null) {
+            SvcLogicGraph calledGraph = store.fetch(module, rpc, version, mode);
+            if (calledGraph != null) {
+                LOG.debug("Parent " + parentGraph + " is calling child " + calledGraph.toString());
+                ctx.setAttribute("currentGraph", calledGraph.toString());
+                svc.execute(calledGraph, ctx);
+                outValue = ctx.getStatus();
+                graphWasCalled = true;
+            } else {
+                LOG.debug(errorMessage);
+            }
+        } else {
+            LOG.debug("Could not get SvcLogicStore reference");
+        }
+
+		SvcLogicNode nextNode = node.getOutcomeValue(outValue);
+		if (nextNode != null) {
+			if (LOG.isDebugEnabled()) {
+				LOG.debug("about to execute " + outValue + " branch");
+			}
+            ctx.setAttribute("currentGraph", parentGraph);
+			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");
+			}
+		}
+		
+		if (graphWasCalled == false) {
+			if (node.getOutcomeValue("catch") != null) {
+				nextNode = node.getOutcomeValue("catch");
+				LOG.debug("graph could not be called, but catch node was found and will be executed");
+			} else {
+				LOG.debug("graph could not be called and no catch node was found, throwing exception");
+				throw new SvcLogicException(errorMessage);
+			}
+		}
+
+		ctx.setAttribute("currentGraph", parentGraph);
+        ctx.setAttribute("parentGraph", null);
+
+		return (nextNode);
+
+	}
+
+}