SDNC-11 merge

[sdnc/core.git] / sli / provider / src / main / java / org / openecomp / sdnc / sli / provider / WhileNodeExecutor.java

diff --git a/sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/WhileNodeExecutor.java b/sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/WhileNodeExecutor.java
new file mode 100644 (file)
index 0000000..7ec36e1
--- /dev/null
+++ b/sli/provider/src/main/java/org/openecomp/sdnc/sli/provider/WhileNodeExecutor.java
@@ -0,0 +1,76 @@
+/*-\r
+ * ============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");\r
+ * you may not use this file except in compliance with the License.\r
+ * You may obtain a copy of the License at\r
+ * \r
+ *      http://www.apache.org/licenses/LICENSE-2.0\r
+ * \r
+ * Unless required by applicable law or agreed to in writing, software\r
+ * distributed under the License is distributed on an "AS IS" BASIS,\r
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ * See the License for the specific language governing permissions and\r
+ * limitations under the License.
+ * ============LICENSE_END=========================================================\r
+ */\r
+\r
+package org.openecomp.sdnc.sli.provider;\r
+\r
+import org.slf4j.Logger;\r
+import org.slf4j.LoggerFactory;\r
+\r
+import org.openecomp.sdnc.sli.BreakNodeException;\r
+import org.openecomp.sdnc.sli.SvcLogicContext;\r
+import org.openecomp.sdnc.sli.SvcLogicException;\r
+import org.openecomp.sdnc.sli.SvcLogicExpression;\r
+import org.openecomp.sdnc.sli.SvcLogicNode;\r
+\r
+public class WhileNodeExecutor extends SvcLogicNodeExecutor {\r
+\r
+    private static final Logger LOG = LoggerFactory.getLogger(WhileNodeExecutor.class);\r
+\r
+    @Override\r
+    public SvcLogicNode execute(SvcLogicServiceImpl svc, SvcLogicNode node, SvcLogicContext ctx) throws SvcLogicException {\r
+\r
+        String testResult = evaluateNodeTest(node, ctx);\r
+        SvcLogicExpression silentFailureExpr = node.getAttribute("do");\r
+        String doWhile = SvcLogicExpressionResolver.evaluate(silentFailureExpr, node, ctx);\r
+        if ("true".equals(doWhile)) {\r
+            LOG.debug("While loop will execute once regardless of expression because do is set to true");\r
+        }\r
+\r
+        try {\r
+            while ("true".equals(testResult) || "true".equals(doWhile)) {\r
+                if (!"true".equals(doWhile)) {\r
+                    LOG.debug("Test expression (" + node.getAttribute("test") + ") evaluates to true, executing loop.");\r
+                }\r
+                int numOutcomes = node.getNumOutcomes() + 1;\r
+                for (int i = 0; i < numOutcomes; i++) {\r
+                    SvcLogicNode nextNode = node.getOutcomeValue("" + (i + 1));\r
+                    if (nextNode != null) {\r
+                        while (nextNode != null) {\r
+                            nextNode = svc.executeNode(nextNode, ctx);\r
+                        }\r
+                    } else {\r
+                        if ("true".equals(doWhile)) {\r
+                            LOG.debug("Do executed, will only execute again if test expression is true.");\r
+                            doWhile = "false";\r
+                        }\r
+                        testResult = evaluateNodeTest(node, ctx);\r
+                        LOG.debug("test expression (" + node.getAttribute("test") + ") evaluates to " + testResult);\r
+                    }\r
+                }\r
+            }\r
+            LOG.debug("testResult was " + testResult + " which is not equal to true, exiting while loop.");\r
+        } catch (BreakNodeException e) {\r
+            LOG.debug("WhileNodeExecutor caught break");\r
+        }\r
+        return (null);\r
+    }\r
+\r
+}\r