Fix model array change detect and detect produces/consumes changes

src/main/java/com/deepoove/swagger/diff/compare/ModelDiff.java

@@ -11,9 +11,13 @@
 
 import com.deepoove.swagger.diff.model.ElProperty;
 
+import io.swagger.models.ArrayModel;
 import io.swagger.models.Model;
+import io.swagger.models.RefModel;
+import io.swagger.models.properties.ArrayProperty;
 import io.swagger.models.properties.Property;
 import io.swagger.models.properties.RefProperty;
+import io.swagger.models.properties.StringProperty;
 
 /**
  * compare two model
@@ -51,12 +55,18 @@ public ModelDiff diff(Model leftModel, Model rightModel, String parentEl) {
 		return this.diff(leftModel, rightModel, parentEl, new HashSet<Model>());
 	}
 
-	private ModelDiff diff(Model leftModel, Model rightModel, String parentEl, Set<Model> visited) {
+	public ModelDiff diff(Property leftProperty, Property rightProperty) {
+		return this.diff(findModel(leftProperty, oldDedinitions), findModel(rightProperty, newDedinitions));
+	}
+
+	private ModelDiff diff(Model leftInputModel, Model rightInputModel, String parentEl, Set<Model> visited) {
 		// Stop recursing if both models are null
 		// OR either model is already contained in the visiting history
-		if ((null == leftModel && null == rightModel) || visited.contains(leftModel) || visited.contains(rightModel)) {
+		if ((null == leftInputModel && null == rightInputModel) || visited.contains(leftInputModel) || visited.contains(rightInputModel)) {
 			return this;
 		}
+		Model leftModel = isModelReference(leftInputModel) ? findReferenceModel(leftInputModel, oldDedinitions) : leftInputModel;
+		Model rightModel = isModelReference(rightInputModel) ? findReferenceModel(rightInputModel, newDedinitions) : rightInputModel;
 		Map<String, Property> leftProperties = null == leftModel ? null : leftModel.getProperties();
 		Map<String, Property> rightProperties = null == rightModel ? null : rightModel.getProperties();
 
@@ -71,19 +81,16 @@ private ModelDiff diff(Model leftModel, Model rightModel, String parentEl, Set<M
 		sharedKey.stream().forEach((key) -> {
 			Property left = leftProperties.get(key);
 			Property right = rightProperties.get(key);
-
-			if ((left instanceof RefProperty) && (right instanceof RefProperty)) {
-				String leftRef = ((RefProperty) left).getSimpleRef();
-				String rightRef = ((RefProperty) right).getSimpleRef();
-
-				diff(oldDedinitions.get(leftRef), newDedinitions.get(rightRef),
+			Model leftSubModel = findModel(left, oldDedinitions);
+			Model rightSubModel = findModel(left, newDedinitions);
+			if (leftSubModel != null || rightSubModel != null) {
+				diff(leftSubModel, rightSubModel,
 						buildElString(parentEl, key),
 						copyAndAdd(visited, leftModel, rightModel));
-
 			} else if (left != null && right != null && !left.equals(right)) {
 				// Add a changed ElProperty if not a Reference
 			    // Useless
-				changed.add(convert2ElProperty(key, parentEl, left));
+				changed.add(addChangeMetadata(convert2ElProperty(key, parentEl, left), left, right));
 			}
 		});
 		return this;
@@ -113,13 +120,69 @@ private ElProperty convert2ElProperty(String propName, String parentEl, Property
 		return pWithPath;
 	}
 
+	private ElProperty addChangeMetadata(ElProperty diffProperty, Property left, Property right) {
+		diffProperty.setTypeChange(!left.getType().equalsIgnoreCase(right.getType()));
+		List<String> leftEnums = enumValues(left);
+		List<String> rightEnums = enumValues(right);
+		if (!leftEnums.isEmpty() && !rightEnums.isEmpty()) {
+			ListDiff<String> enumDiff = ListDiff.diff(leftEnums, rightEnums, (t, enumVal) -> {
+				for (String value : t) {
+					if (enumVal.equalsIgnoreCase(value)) { return value; }
+				}
+				return null;
+			});
+			diffProperty.setNewEnums(enumDiff.getIncreased() != null && ! enumDiff.getIncreased().isEmpty());
+			diffProperty.setRemovedEnums(enumDiff.getMissing() != null && ! enumDiff.getMissing().isEmpty());
+		}
+		return diffProperty;
+	}
+
 	@SuppressWarnings("unchecked")
     private <T> Set<T> copyAndAdd(Set<T> set, T... add) {
 		Set<T> newSet = new HashSet<T>(set);
 		newSet.addAll(Arrays.asList(add));
 		return newSet;
 	}
 
+	private List<String> enumValues(Property prop) {
+		if (prop instanceof StringProperty && ((StringProperty) prop).getEnum() != null) {
+			return ((StringProperty) prop).getEnum();
+		} else {
+			return new ArrayList<>();
+		}
+	}
+
+	private Model findModel(Property property, Map<String, Model> modelMap) {
+		String modelName = null;
+		if (property instanceof RefProperty){
+			modelName = ((RefProperty) property).getSimpleRef();
+		} else if (property instanceof ArrayProperty) {
+			Property arrayType = ((ArrayProperty) property).getItems();
+			if (arrayType instanceof RefProperty) {
+				modelName = ((RefProperty) arrayType).getSimpleRef();
+			}
+		}
+		return modelName == null ? null : modelMap.get(modelName);
+	}
+
+	private boolean isModelReference(Model model) {
+		return model instanceof RefModel || model instanceof ArrayModel;
+	}
+
+	private Model findReferenceModel(Model model, Map<String, Model> modelMap) {
+		String modelName = null;
+		if (model instanceof RefModel){
+			modelName = ((RefModel) model).getSimpleRef();
+		} else if (model instanceof ArrayModel) {
+			Property arrayType = ((ArrayModel) model).getItems();
+			if (arrayType instanceof RefProperty) {
+				modelName = ((RefProperty) arrayType).getSimpleRef();
+			}
+		}
+		return modelName == null ? null : modelMap.get(modelName);
+	}
+
+
 	public List<ElProperty> getIncreased() {
 		return increased;
 	}

src/main/java/com/deepoove/swagger/diff/compare/ParameterDiff.java

@@ -9,7 +9,6 @@
 import com.deepoove.swagger.diff.model.ChangedParameter;
 
 import io.swagger.models.Model;
-import io.swagger.models.RefModel;
 import io.swagger.models.parameters.BodyParameter;
 import io.swagger.models.parameters.Parameter;
 
@@ -65,19 +64,12 @@ public ParameterDiff diff(List<Parameter> left, List<Parameter> right) {
                 BodyParameter leftBodyPara = (BodyParameter) leftPara;
                 Model leftSchema = leftBodyPara.getSchema();
                 BodyParameter rightBodyPara = (BodyParameter) rightPara;
-                Model rightSchema = rightBodyPara.getSchema(); 
-                if (leftSchema instanceof RefModel && rightSchema instanceof RefModel) {
-                    String leftRef = ((RefModel) leftSchema).getSimpleRef();
-                    String rightRef = ((RefModel) rightSchema).getSimpleRef();
-                    Model leftModel = oldDedinitions.get(leftRef);
-                    Model rightModel = newDedinitions.get(rightRef);
-
-                    ModelDiff diff = ModelDiff.buildWithDefinition(oldDedinitions, newDedinitions)
-                            .diff(leftModel, rightModel, leftPara.getName());
-                    changedParameter.setIncreased(diff.getIncreased());
-                    changedParameter.setMissing(diff.getMissing());
-                    changedParameter.setChanged(diff.getChanged());
-                }
+                Model rightSchema = rightBodyPara.getSchema();
+                ModelDiff diff = ModelDiff.buildWithDefinition(oldDedinitions, newDedinitions)
+                        .diff(leftSchema, rightSchema, leftPara.getName());
+                changedParameter.setIncreased(diff.getIncreased());
+                changedParameter.setMissing(diff.getMissing());
+                changedParameter.setChanged(diff.getChanged());
             }
 
             // is requried

src/main/java/com/deepoove/swagger/diff/compare/PropertyDiff.java

@@ -8,7 +8,6 @@
 
 import io.swagger.models.Model;
 import io.swagger.models.properties.Property;
-import io.swagger.models.properties.RefProperty;
 
 public class PropertyDiff {
 
@@ -34,16 +33,12 @@ public static PropertyDiff buildWithDefinition(Map<String, Model> left,
 	}
 
 	public PropertyDiff diff(Property left, Property right) {
-		if ((null == left || left instanceof RefProperty) && (null == right || right instanceof RefProperty)) {
-			Model leftModel = null == left ? null : oldDedinitions.get(((RefProperty) left).getSimpleRef());
-			Model rightModel = null == right ? null : newDedinitions.get(((RefProperty) right).getSimpleRef());
-			ModelDiff diff = ModelDiff
-					.buildWithDefinition(oldDedinitions, newDedinitions)
-					.diff(leftModel, rightModel);
-			increased.addAll(diff.getIncreased());
-			missing.addAll(diff.getMissing());
-			changed.addAll(diff.getChanged());
-		}
+		ModelDiff diff = ModelDiff
+				.buildWithDefinition(oldDedinitions, newDedinitions)
+				.diff(left, right);
+		increased.addAll(diff.getIncreased());
+		missing.addAll(diff.getMissing());
+		changed.addAll(diff.getChanged());
 		return this;
 	}
 

src/main/java/com/deepoove/swagger/diff/compare/SpecificationDiff.java

@@ -90,6 +90,16 @@ public static SpecificationDiff diff(Swagger oldSpec, Swagger newSpec) {
                 changedOperation.setMissingProps(propertyDiff.getMissing());
                 changedOperation.setChangedProps(propertyDiff.getChanged());
 
+                // Diff Consumes
+                ListDiff<String> consumeDiff = getMediaTypeDiff(oldOperation.getConsumes(), newOperation.getConsumes());
+                changedOperation.setAddConsumes(consumeDiff.getIncreased());
+                changedOperation.setMissingConsumes(consumeDiff.getMissing());
+
+                // Diff Produces
+                ListDiff<String> producesDiff = getMediaTypeDiff(oldOperation.getProduces(), newOperation.getProduces());
+                changedOperation.setAddProduces(producesDiff.getIncreased());
+                changedOperation.setMissingProduces(producesDiff.getMissing());
+
                 if (changedOperation.isDiff()) {
                     operas.put(method, changedOperation);
                 }
@@ -151,6 +161,15 @@ private static Collection<? extends Endpoint> convert2EndpointList(String pathUr
         return endpoints;
     }
 
+    private static ListDiff<String> getMediaTypeDiff(List<String> oldTypes, List<String> newTypes) {
+        return  ListDiff.diff(oldTypes, newTypes, (t, sample) -> {
+            for (String mediaType : t) {
+                if (sample.equalsIgnoreCase(mediaType)) { return mediaType; }
+            }
+            return null;
+        });
+    }
+
     public List<Endpoint> getNewEndpoints() {
         return newEndpoints;
     }

src/main/java/com/deepoove/swagger/diff/model/ChangedOperation.java

@@ -17,6 +17,10 @@ public class ChangedOperation implements Changed {
 	private List<ElProperty> addProps = new ArrayList<ElProperty>();
 	private List<ElProperty> missingProps = new ArrayList<ElProperty>();
 	private List<ElProperty> changedProps = new ArrayList<ElProperty>();
+	private List<String> addConsumes = new ArrayList<>();
+	private List<String> missingConsumes = new ArrayList<>();
+	private List<String> addProduces = new ArrayList<>();
+	private List<String> missingProduces = new ArrayList<>();
 
 	public List<Parameter> getAddParameters() {
 		return addParameters;
@@ -76,7 +80,7 @@ public void setSummary(String summary) {
 
 	public boolean isDiff() {
 		return !addParameters.isEmpty() || !missingParameters.isEmpty()
-				|| !changedParameter.isEmpty() || isDiffProp();
+				|| !changedParameter.isEmpty() || isDiffProp() || isDiffConsumes() || isDiffProduces();
 	}
 	public boolean isDiffProp(){
 		return !addProps.isEmpty()
@@ -87,4 +91,44 @@ public boolean isDiffParam(){
 		return !addParameters.isEmpty() || !missingParameters.isEmpty()
 				|| !changedParameter.isEmpty();
 	}
+
+	public boolean isDiffConsumes(){
+		return !addConsumes.isEmpty() || !missingConsumes.isEmpty();
+	}
+
+	public boolean isDiffProduces(){
+		return !addProduces.isEmpty() || !missingProduces.isEmpty();
+	}
+
+	public List<String> getAddConsumes() {
+		return this.addConsumes;
+	}
+
+    public void setAddConsumes(List<String> increased) {
+		this.addConsumes = increased == null ? new ArrayList<>() : increased;
+    }
+
+	public List<String> getMissingConsumes() {
+		return this.missingConsumes;
+	}
+
+	public void setMissingConsumes(List<String> missing) {
+		this.missingConsumes = missing == null ? new ArrayList<>() : missing;
+	}
+
+	public List<String> getAddProduces() {
+		return this.addProduces;
+	}
+
+	public void setAddProduces(List<String> increased) {
+		this.addProduces = increased == null ? new ArrayList<>() : increased;
+	}
+
+	public List<String> getMissingProduces() {
+		return this.missingProduces;
+	}
+
+	public void setMissingProduces(List<String> missing) {
+		this.missingProduces = missing == null ? new ArrayList<>() : missing;
+	}
 }

src/main/java/com/deepoove/swagger/diff/model/ElProperty.java

@@ -13,6 +13,11 @@ public class ElProperty {
 
 	private Property property;
 
+	// optional change metadata
+	private boolean isTypeChange;
+	private boolean newEnums;
+	private boolean removedEnums;
+
 	public Property getProperty() {
 		return property;
 	}
@@ -29,4 +34,27 @@ public void setEl(String el) {
 		this.el = el;
 	}
 
+	public boolean isTypeChange() {
+		return isTypeChange;
+	}
+
+	public void setTypeChange(boolean typeChange) {
+		isTypeChange = typeChange;
+	}
+
+	public boolean isNewEnums() {
+		return newEnums;
+	}
+
+	public void setNewEnums(boolean newEnums) {
+		this.newEnums = newEnums;
+	}
+
+	public boolean isRemovedEnums() {
+		return removedEnums;
+	}
+
+	public void setRemovedEnums(boolean removedEnums) {
+		this.removedEnums = removedEnums;
+	}
 }