fix setnode null feature

short prefixes could cause bad behavior in the setnode null feature

Change-Id: I3876eaece8b8d695b0a98d8b5d69f955f2149402
Issue-ID: CCSDK-190
Signed-off-by: Kevin Smokowski <ks6305@att.com>

4 files changed, 208 insertions, 149 deletions

diff --git a/sli/provider/src/main/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutor.java b/sli/provider/src/main/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutor.java
index dc7fad0a8..cd478977c 100644
--- a/sli/provider/src/main/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutor.java
+++ b/sli/provider/src/main/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutor.java
@@ -3,14 +3,14 @@
  * ONAP : CCSDK
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights
- * 						reserved.
+ *                      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.
@@ -26,7 +26,6 @@ import java.util.Iterator;
 import java.util.LinkedList;
 import java.util.Map;
 import java.util.Set;
-
 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
 import org.onap.ccsdk.sli.core.sli.SvcLogicExpression;
@@ -37,161 +36,131 @@ import org.slf4j.LoggerFactory;
 
 public class SetNodeExecutor extends SvcLogicNodeExecutor {
 
-	private static final Logger LOG = LoggerFactory
-			.getLogger(SetNodeExecutor.class);
+    private static final Logger LOG = LoggerFactory.getLogger(SetNodeExecutor.class);
+
+    @Override
+    public SvcLogicNode execute(SvcLogicService svc, SvcLogicNode node, SvcLogicContext ctx)
+            throws SvcLogicException {
+        execute(node,ctx);
+        return null;
+    }
 
-	@Override
-	public SvcLogicNode execute(SvcLogicService svc, SvcLogicNode node,
-			SvcLogicContext ctx) throws SvcLogicException {
+    public void execute(SvcLogicNode node, SvcLogicContext ctx) throws SvcLogicException {
+        String ifunsetStr = SvcLogicExpressionResolver.evaluate(node.getAttribute("only-if-unset"), node, ctx);
 
-		String ifunsetStr = SvcLogicExpressionResolver.evaluate(
-				node.getAttribute("only-if-unset"), node, ctx);
+        boolean ifunset = "true".equalsIgnoreCase(ifunsetStr);
 
-		boolean ifunset = "true".equalsIgnoreCase(ifunsetStr);
+        Set<Map.Entry<String, SvcLogicExpression>> parameterSet = node.getParameterSet();
 
-		Set<Map.Entry<String, SvcLogicExpression>> parameterSet = node
-				.getParameterSet();
+        for (Iterator<Map.Entry<String, SvcLogicExpression>> iter = parameterSet.iterator(); iter.hasNext();) {
+            Map.Entry<String, SvcLogicExpression> curEnt = iter.next();
+            String curName = curEnt.getKey();
+            String lhsVarName = curName;
 
-		for (Iterator<Map.Entry<String, SvcLogicExpression>> iter = parameterSet
-				.iterator(); iter.hasNext();) {
-			Map.Entry<String, SvcLogicExpression> curEnt = iter.next();
-			String curName = curEnt.getKey();
-			String lhsVarName = curName;
-			
-			// Resolve LHS of assignment (could contain index variables)
-			try {
-                //Backticks symbolize the variable should be handled as an expression instead of as a variable
+            // Resolve LHS of assignment (could contain index variables)
+            try {
+                // Backticks symbolize the variable should be handled as an expression instead of as a variable
                 if (curName.trim().startsWith("`")) {
                     int lastParen = curName.lastIndexOf("`");
                     String evalExpr = curName.trim().substring(1, lastParen);
                     SvcLogicExpression lhsExpr = SvcLogicExpressionFactory.parse(evalExpr);
                     lhsVarName = SvcLogicExpressionResolver.evaluate(lhsExpr, node, ctx);
                 } else {
-				SvcLogicExpression lhsExpr = SvcLogicExpressionFactory.parse(curName);
-				lhsVarName = SvcLogicExpressionResolver.resolveVariableName(lhsExpr, node, ctx);
+                    SvcLogicExpression lhsExpr = SvcLogicExpressionFactory.parse(curName);
+                    lhsVarName = SvcLogicExpressionResolver.resolveVariableName(lhsExpr, node, ctx);
                 }
-			} catch (Exception e) {
-				LOG.warn("Caught exception trying to resolve variable name ("+curName+")", e);
-			}
-			
-
-			boolean setValue = true;
-
-			if (curName.endsWith(".")) {
-
-				// Copy subtree - value should be a variable name
-				SvcLogicExpression curValue = curEnt.getValue();
-
-				if (curValue != null) {
-					String rhsRoot = curValue.toString();
-				
-					if ((rhsRoot != null) && (rhsRoot.length() > 0)) {
-						if (rhsRoot.endsWith(".")) {
-							rhsRoot = rhsRoot
-									.substring(0, rhsRoot.length() - 1);
-						}
-
-
-						// SDNGC-2321 : rhsRoot is variable name, possibly with subscript(s) to be resolved
-						try {
-							SvcLogicExpression rhsExpr = SvcLogicExpressionFactory.parse(rhsRoot);
-							rhsRoot = SvcLogicExpressionResolver.resolveVariableName(rhsExpr, node, ctx);
-						} catch (Exception e) {
-							LOG.warn("Caught exception trying to resolve variable name ("+rhsRoot+")", e);
-						}
-						
-						// See if the parameters are reversed (copying service-data to input) .. this
-						// was done as a workaround to earlier issue
-						if (curName.endsWith("-input.") && rhsRoot.startsWith("service-data")) {
-							LOG.warn("Arguments appear to be reversed .. will copy input to service-data instead");
-							lhsVarName = rhsRoot + ".";
-							rhsRoot = curName.substring(0, curName.length()-1);
-						}
-						
-						rhsRoot = rhsRoot + ".";
-						String lhsPrefix = lhsVarName;
-						
-						if (lhsPrefix.endsWith(".")) {
-							lhsPrefix = lhsPrefix.substring(0,
-								lhsPrefix.length()-1);
-						}
-						int lhsPfxLength = lhsPrefix.length();
-						HashMap<String, String> parmsToAdd = new HashMap<String,String>();
-
-						for (String sourceVarName : ctx.getAttributeKeySet()) {
-
-							if (sourceVarName.startsWith(rhsRoot)) {
-
-								String targetVar = lhsPrefix
-										+ "."
-										+ sourceVarName
-												.substring(rhsRoot.length());
-
-								LOG.debug("Copying " + sourceVarName
-										+ " value to " + targetVar);
-
-								parmsToAdd.put(targetVar,
-										ctx.getAttribute(sourceVarName));
-							}
-						}
-						
-						for (String newParmName : parmsToAdd.keySet()) {
-							ctx.setAttribute(newParmName, parmsToAdd.get(newParmName));
-						}
-
-					} else {
-						// If RHS is empty, unset attributes in LHS
-						String lhsPrefix = lhsVarName.substring(0,
-								lhsVarName.length() - 1);
-						int lhsPfxLength = lhsPrefix.length();
-						
-						LinkedList<String> parmsToRemove = new LinkedList<String> ();
-
-						for (String curCtxVarname : ctx.getAttributeKeySet()) {
-
-							if (curCtxVarname.startsWith(lhsPrefix)) {
-								LOG.debug("Unsetting " + curCtxVarname);
-								parmsToRemove.add(curCtxVarname);
-							}
-						}
-						
-						for (String parmName : parmsToRemove) {
-							ctx.setAttribute(parmName, null);
-						}
-
-					}
-				}
-
-			} else {
-
-				if (ifunset) {
-					String ctxValue = ctx.getAttribute(lhsVarName);
-
-					if ((ctxValue != null) && (ctxValue.length() > 0)) {
-						setValue = false;
-						LOG.debug("Attribute "
-								+ lhsVarName
-								+ " already set and only-if-unset is true, so not overriding");
-					}
-				}
-
-				if (setValue) {
-					String curValue = SvcLogicExpressionResolver.evaluate(
-							curEnt.getValue(), node, ctx);
-
-					if (LOG.isDebugEnabled()) {
-						LOG.trace("Parameter value "
-								+ curEnt.getValue().asParsedExpr()
-								+ " resolves to " + curValue);
-						LOG.debug("Setting context attribute " + lhsVarName
-								+ " to " + curValue);
-					}
-					ctx.setAttribute(lhsVarName, curValue);
-				}
-			}
-		}
-		
-		return null;
-	}
-
+            } catch (Exception e) {
+                LOG.warn("Caught exception trying to resolve variable name (" + curName + ")", e);
+            }
+
+            boolean setValue = true;
+
+            if (curName.endsWith(".")) {
+                // Copy subtree - value should be a variable name
+                SvcLogicExpression curValue = curEnt.getValue();
+
+                if (curValue != null) {
+                    String rhsRoot = curValue.toString();
+
+                    if ((rhsRoot != null) && (rhsRoot.length() > 0)) {
+                        if (rhsRoot.endsWith(".")) {
+                            rhsRoot = rhsRoot.substring(0, rhsRoot.length() - 1);
+                        }
+
+                        // SDNGC-2321 : rhsRoot is variable name, possibly with subscript(s) to be resolved
+                        try {
+                            SvcLogicExpression rhsExpr = SvcLogicExpressionFactory.parse(rhsRoot);
+                            rhsRoot = SvcLogicExpressionResolver.resolveVariableName(rhsExpr, node, ctx);
+                        } catch (Exception e) {
+                            LOG.warn("Caught exception trying to resolve variable name (" + rhsRoot + ")", e);
+                        }
+
+                        // See if the parameters are reversed (copying service-data to input) .. this
+                        // was done as a workaround to earlier issue
+                        if (curName.endsWith("-input.") && rhsRoot.startsWith("service-data")) {
+                            LOG.warn("Arguments appear to be reversed .. will copy input to service-data instead");
+                            lhsVarName = rhsRoot + ".";
+                            rhsRoot = curName.substring(0, curName.length() - 1);
+                        }
+
+                        rhsRoot = rhsRoot + ".";
+                        String lhsPrefix = lhsVarName;
+
+                        if (lhsPrefix.endsWith(".")) {
+                            lhsPrefix = lhsPrefix.substring(0, lhsPrefix.length() - 1);
+                        }
+                        int lhsPfxLength = lhsPrefix.length();
+                        HashMap<String, String> parmsToAdd = new HashMap<String, String>();
+
+                        for (String sourceVarName : ctx.getAttributeKeySet()) {
+
+                            if (sourceVarName.startsWith(rhsRoot)) {
+
+                                String targetVar = lhsPrefix + "." + sourceVarName.substring(rhsRoot.length());
+
+                                LOG.debug("Copying " + sourceVarName + " value to " + targetVar);
+
+                                parmsToAdd.put(targetVar, ctx.getAttribute(sourceVarName));
+                            }
+                        }
+                        for (String newParmName : parmsToAdd.keySet()) {
+                            ctx.setAttribute(newParmName, parmsToAdd.get(newParmName));
+                        }
+                    } else {
+                        // If RHS is empty, unset attributes in LHS
+                        LinkedList<String> parmsToRemove = new LinkedList<String>();
+                        String prefix = lhsVarName + ".";
+                        for (String curCtxVarname : ctx.getAttributeKeySet()) {
+                            if (curCtxVarname.startsWith(prefix)) {
+                                LOG.debug("Unsetting " + curCtxVarname);
+                                parmsToRemove.add(curCtxVarname);
+                            }
+                        }
+                        for (String parmName : parmsToRemove) {
+                            ctx.setAttribute(parmName, null);
+                        }
+                    }
+                }
+            } else {
+                if (ifunset) {
+                    String ctxValue = ctx.getAttribute(lhsVarName);
+                    if ((ctxValue != null) && (ctxValue.length() > 0)) {
+                        setValue = false;
+                        LOG.debug("Attribute " + lhsVarName
+                                + " already set and only-if-unset is true, so not overriding");
+                    }
+                }
+                if (setValue) {
+                    String curValue = SvcLogicExpressionResolver.evaluate(curEnt.getValue(), node, ctx);
+
+                    if (LOG.isDebugEnabled()) {
+                        LOG.trace("Parameter value " + curEnt.getValue().asParsedExpr() + " resolves to " + curValue);
+                        LOG.debug("Setting context attribute " + lhsVarName + " to " + curValue);
+                    }
+                    ctx.setAttribute(lhsVarName, curValue);
+                }
+            }
+        }
+    }
 }
+
diff --git a/sli/provider/src/test/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutorTest.java b/sli/provider/src/test/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutorTest.java
new file mode 100644
index 000000000..1333d0702
--- /dev/null
+++ b/sli/provider/src/test/java/org/onap/ccsdk/sli/core/sli/provider/SetNodeExecutorTest.java
@@ -0,0 +1,56 @@
+package org.onap.ccsdk.sli.core.sli.provider;

+

+import static org.junit.Assert.assertEquals;

+import static org.junit.Assert.assertNull;

+import java.util.LinkedList;

+import org.junit.Test;

+import org.onap.ccsdk.sli.core.sli.SvcLogicContext;

+import org.onap.ccsdk.sli.core.sli.SvcLogicGraph;

+import org.onap.ccsdk.sli.core.sli.SvcLogicNode;

+import org.onap.ccsdk.sli.core.sli.SvcLogicParser;

+

+public class SetNodeExecutorTest {

+    @Test

+    public void clearProperties() throws Exception {

+        SetNodeExecutor sne = new SetNodeExecutor();

+        SvcLogicContext ctx = new SvcLogicContext();

+

+        SvcLogicParser slp = new SvcLogicParser();

+        LinkedList<SvcLogicGraph> graph = slp.parse("src/test/resources/clearValues.xml");

+        SvcLogicNode root = graph.getFirst().getRootNode();

+        SvcLogicNode nodeOne = root.getOutcomeValue("1");

+        SvcLogicNode nodeTwo = root.getOutcomeValue("2");

+

+        sne.execute(nodeOne, ctx);

+        sne.execute(nodeTwo, ctx);

+

+        assertNull(ctx.getAttribute("si.field1"));

+        assertNull(ctx.getAttribute("si.field2"));

+        assertNull(ctx.getAttribute("si.field3"));

+        assertEquals("6", ctx.getAttribute("search1"));

+        assertEquals("KeepMe!", ctx.getAttribute("simonSays"));

+    }

+

+    @Test

+    public void subtreeCopy() throws Exception {

+        SetNodeExecutor sne = new SetNodeExecutor();

+        SvcLogicContext ctx = new SvcLogicContext();

+

+        SvcLogicParser slp = new SvcLogicParser();

+        LinkedList<SvcLogicGraph> graph = slp.parse("src/test/resources/copyValues.xml");

+        SvcLogicNode root = graph.getFirst().getRootNode();

+        SvcLogicNode nodeOne = root.getOutcomeValue("1");

+        SvcLogicNode nodeTwo = root.getOutcomeValue("2");

+

+        sne.execute(nodeOne, ctx);

+        sne.execute(nodeTwo, ctx);

+   

+        assertEquals("1",ctx.getAttribute("si.field1"));

+        assertEquals("2",ctx.getAttribute("si.field2"));

+        assertEquals("3",ctx.getAttribute("si.field3"));

+        assertEquals("1",ctx.getAttribute("rootTwo.field1"));

+        assertEquals("2",ctx.getAttribute("rootTwo.field2"));

+        assertEquals("3",ctx.getAttribute("rootTwo.field3"));

+    }

+

+}

diff --git a/sli/provider/src/test/resources/clearValues.xml b/sli/provider/src/test/resources/clearValues.xml
new file mode 100644
index 000000000..615c8566a
--- /dev/null
+++ b/sli/provider/src/test/resources/clearValues.xml
@@ -0,0 +1,18 @@
+<service-logic

+    xmlns='http://www.onap.org/sdnc/svclogic'

+    xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.onap.org/sdnc/svclogic ./svclogic.xsd' module='TEST-DG' version='1.0.0'>

+    <method rpc='test-dg' mode='sync'>

+        <block>

+            <set>

+                <parameter name='si.field1' value='1' />

+                <parameter name='si.field2' value='2' />

+                <parameter name='si.field3' value='3' />

+                <parameter name='search1' value='6' />

+                <parameter name='simonSays' value='KeepMe!' />

+            </set>

+            <set>

+                <parameter name='si.' value='' />

+            </set>

+        </block>

+    </method>

+</service-logic>
\ No newline at end of file
diff --git a/sli/provider/src/test/resources/copyValues.xml b/sli/provider/src/test/resources/copyValues.xml
new file mode 100644
index 000000000..f56f7140a
--- /dev/null
+++ b/sli/provider/src/test/resources/copyValues.xml
@@ -0,0 +1,16 @@
+<service-logic

+    xmlns='http://www.onap.org/sdnc/svclogic'

+    xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.onap.org/sdnc/svclogic ./svclogic.xsd' module='TEST-DG' version='1.0.0'>

+    <method rpc='test-dg' mode='sync'>

+        <block>

+            <set>

+                <parameter name='si.field1' value='1' />

+                <parameter name='si.field2' value='2' />

+                <parameter name='si.field3' value='3' />

+            </set>

+            <set>

+                <parameter name='rootTwo.' value='si.' />

+            </set>

+        </block>

+    </method>

+</service-logic>
\ No newline at end of file