Refactor to move from openecomp to onap
[aai/gizmo.git] / src / main / java / org / onap / schema / RelationshipSchemaValidator.java
diff --git a/src/main/java/org/onap/schema/RelationshipSchemaValidator.java b/src/main/java/org/onap/schema/RelationshipSchemaValidator.java
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+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.schema;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonNull;
+
+import org.onap.crud.entity.Edge;
+import org.onap.crud.entity.Vertex;
+import org.onap.crud.exception.CrudException;
+import org.onap.crud.service.EdgePayload;
+import org.onap.crud.util.CrudServiceUtil;
+import org.radeox.util.logging.Logger;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import javax.ws.rs.core.Response.Status;
+
+public class RelationshipSchemaValidator {
+
+  public static final String SOURCE_NODE = "source";
+  public static final String TARGET_NODE = "target";
+
+  final static Pattern urlPattern = Pattern.compile("services/inventory/(.*)/(.*)/(.*)");
+
+  public static Map<String, Object> resolveCollectionfilter(String version, String type,
+                                                            Map<String, String> filter)
+      throws CrudException {
+
+    RelationshipSchema schema = RelationshipSchemaLoader.getSchemaForVersion(version);
+    if (schema == null) {
+      throw new CrudException("", Status.NOT_FOUND);
+    }
+
+    Map<String, Class<?>> props = schema.lookupRelationType(type);
+    Map<String, Object> result = new HashMap<String, Object>();
+
+    for (String key : filter.keySet()) {
+
+      if (props.containsKey(key)) {
+        try {
+          Object value = CrudServiceUtil.validateFieldType(filter.get(key), props.get(key));
+          result.put(key, value);
+        } catch (Exception ex) {
+          // Skip any exceptions thrown while validating the filter
+          // key value
+          continue;
+        }
+      }
+    }
+
+    return result;
+
+  }
+
+  public static void validateType(String version, String type) throws CrudException {
+
+    RelationshipSchema schema = RelationshipSchemaLoader.getSchemaForVersion(version);
+    if (!schema.isValidType(type)) {
+      throw new CrudException("Invalid " + RelationshipSchema.SCHEMA_RELATIONSHIP_TYPE
+          + ": " + type,
+          Status.BAD_REQUEST);
+    }
+
+  }
+
+  public static Edge validateIncomingAddPayload(String version, String type, Vertex sourceNode,
+                                                Vertex targetNode, JsonElement properties)
+      throws CrudException {
+    EdgePayload payload = new EdgePayload();
+    payload.setSource("services/inventory/" + version + "/" + sourceNode.getType()
+        + "/" + sourceNode.getId().get());
+    payload.setTarget("services/inventory/" + version + "/" + targetNode.getType()
+        + "/" + targetNode.getId().get());
+    payload.setType(type);
+    payload.setProperties(properties);
+    return validateIncomingAddPayload(version, type, payload);
+  }
+
+  public static Edge validateIncomingAddPayload(String version, String type, EdgePayload payload)
+      throws CrudException {
+    RelationshipSchema schema = RelationshipSchemaLoader.getSchemaForVersion(version);
+
+    try {
+
+      if (payload.getSource() == null || payload.getTarget() == null) {
+        throw new CrudException("Source/Target not specified", Status.BAD_REQUEST);
+      }
+
+      Matcher sourceMatcher = urlPattern.matcher(payload.getSource());
+      Matcher targetMatcher = urlPattern.matcher(payload.getTarget());
+
+      if (!sourceMatcher.matches() || !targetMatcher.matches()) {
+        throw new CrudException("Invalid Source/Target Urls", Status.BAD_REQUEST);
+      }
+
+      // create key based on source:target:relationshipType
+      String sourceNodeType = sourceMatcher.group(2);
+      String targetNodeType = targetMatcher.group(2);
+
+      String sourceNodeId = sourceMatcher.group(3);
+      String targetNodeId = targetMatcher.group(3);
+
+      String key = sourceNodeType + ":" + targetNodeType + ":" + type;
+
+      // find the validate the key from the schema
+      Map<String, Class<?>> schemaObject = schema.lookupRelation(key);
+
+      if (schemaObject == null) {
+        throw new CrudException("Invalid source/target/relationship type: " + key,
+            Status.BAD_REQUEST);
+      }
+
+      Edge.Builder modelEdgeBuilder = new Edge.Builder(type);
+
+      modelEdgeBuilder.source(new Vertex.Builder(sourceNodeType).id(sourceNodeId).build());
+      modelEdgeBuilder.target(new Vertex.Builder(targetNodeType).id(targetNodeId).build());
+
+      // validate it properties
+      validateEdgeProps(modelEdgeBuilder, payload.getProperties(), schemaObject);
+
+      return modelEdgeBuilder.build();
+    } catch (Exception ex) {
+
+      throw new CrudException(ex.getMessage(), Status.BAD_REQUEST);
+    }
+
+  }
+
+  public static Edge validateIncomingPatchPayload(Edge edge, String version, EdgePayload payload)
+      throws CrudException {
+    RelationshipSchema schema = RelationshipSchemaLoader.getSchemaForVersion(version);
+
+    try {
+      if (payload.getSource() != null) {
+        Matcher sourceMatcher = urlPattern.matcher(payload.getSource());
+
+        if (!sourceMatcher.matches()) {
+          throw new CrudException("Invalid Target Urls", Status.BAD_REQUEST);
+        }
+        String sourceNodeId = sourceMatcher.group(3);
+        if (!sourceNodeId.equals(edge.getSource().getId().get())) {
+          throw new CrudException("Source can't be updated", Status.BAD_REQUEST);
+        }
+      }
+
+      if (payload.getTarget() != null) {
+        Matcher targetMatcher = urlPattern.matcher(payload.getTarget());
+
+        if (!targetMatcher.matches()) {
+          throw new CrudException("Invalid Target Urls", Status.BAD_REQUEST);
+        }
+        String sourceNodeId = targetMatcher.group(3);
+        if (!sourceNodeId.equals(edge.getTarget().getId().get())) {
+          throw new CrudException("Target can't be updated", Status.BAD_REQUEST);
+        }
+      }
+      // create key based on source:target:relationshipType
+
+      String key = edge.getSource().getType() + ":" + edge.getTarget().getType()
+          + ":" + edge.getType();
+
+      // find the validate the key from the schema
+      Map<String, Class<?>> schemaObject = schema.lookupRelation(key);
+
+      if (schemaObject == null) {
+        Logger.warn("key :" + key
+            + " not found in relationship schema . Skipping the schema validation");
+        return edge;
+      }
+
+      Set<Map.Entry<String, JsonElement>> entries = payload.getProperties()
+          .getAsJsonObject().entrySet();
+
+      for (Map.Entry<String, JsonElement> entry : entries) {
+
+        if (!schemaObject.containsKey(entry.getKey())) {
+          throw new CrudException("Invalid property: " + entry.getKey(), Status.BAD_REQUEST);
+        } else if (entry.getValue() instanceof JsonNull && edge.getProperties()
+            .containsKey(entry.getKey())) {
+          edge.getProperties().remove(entry.getKey());
+        } else if (!(entry.getValue() instanceof JsonNull)) {
+          Object value = CrudServiceUtil.validateFieldType(entry.getValue().getAsString(),
+              schemaObject.get(entry.getKey()));
+          edge.getProperties().put(entry.getKey(), value);
+        }
+
+      }
+
+      return edge;
+
+    } catch (Exception ex) {
+
+      throw new CrudException(ex.getMessage(), Status.BAD_REQUEST);
+    }
+  }
+
+  public static Edge validateIncomingUpdatePayload(Edge edge, String version, Vertex sourceNode,
+                                                   Vertex targetNode, JsonElement properties)
+      throws CrudException {
+    EdgePayload payload = new EdgePayload();
+    payload.setSource("services/inventory/" + version + "/" + sourceNode.getType()
+        + "/" + sourceNode.getId().get());
+    payload.setTarget("services/inventory/" + version + "/" + targetNode.getType()
+        + "/" + targetNode.getId().get());
+    payload.setType(edge.getType());
+    payload.setProperties(properties);
+    return validateIncomingUpdatePayload(edge, version, payload);
+  }
+
+  public static Edge validateIncomingUpdatePayload(Edge edge, String version, EdgePayload payload)
+      throws CrudException {
+    RelationshipSchema schema = RelationshipSchemaLoader.getSchemaForVersion(version);
+
+    try {
+
+      if (payload.getSource() != null) {
+        Matcher sourceMatcher = urlPattern.matcher(payload.getSource());
+
+        if (!sourceMatcher.matches()) {
+          throw new CrudException("Invalid Target Urls", Status.BAD_REQUEST);
+        }
+        String sourceNodeId = sourceMatcher.group(3);
+        if (!sourceNodeId.equals(edge.getSource().getId().get())) {
+          throw new CrudException("Source can't be updated", Status.BAD_REQUEST);
+        }
+      }
+
+      if (payload.getTarget() != null) {
+        Matcher targetMatcher = urlPattern.matcher(payload.getTarget());
+
+        if (!targetMatcher.matches()) {
+          throw new CrudException("Invalid Target Urls", Status.BAD_REQUEST);
+        }
+        String sourceNodeId = targetMatcher.group(3);
+        if (!sourceNodeId.equals(edge.getTarget().getId().get())) {
+          throw new CrudException("Target can't be updated", Status.BAD_REQUEST);
+        }
+      }
+      // create key based on source:target:relationshipType
+
+      String key = edge.getSource().getType() + ":" + edge.getTarget().getType()
+          + ":" + edge.getType();
+
+      // find the validate the key from the schema
+      Map<String, Class<?>> schemaObject = schema.lookupRelation(key);
+
+      if (schemaObject == null) {
+        Logger.warn("key :" + key
+            + " not found in relationship schema . Skipping the schema validation");
+        return edge;
+      }
+
+      Edge.Builder updatedEdgeBuilder = new Edge.Builder(edge.getType()).id(edge.getId().get());
+
+      updatedEdgeBuilder
+          .source(new Vertex.Builder(edge.getSource().getType()).id(edge.getSource().getId()
+              .get()).build());
+      updatedEdgeBuilder
+          .target(new Vertex.Builder(edge.getTarget().getType()).id(edge.getTarget().getId()
+              .get()).build());
+
+      validateEdgeProps(updatedEdgeBuilder, payload.getProperties(), schemaObject);
+
+      return updatedEdgeBuilder.build();
+    } catch (Exception ex) {
+
+      throw new CrudException(ex.getMessage(), Status.BAD_REQUEST);
+    }
+  }
+
+
+  private static void validateEdgeProps(Edge.Builder builder, JsonElement props,
+                                        Map<String, Class<?>> schemaObject)
+      throws CrudException {
+    Set<Map.Entry<String, JsonElement>> entries = props.getAsJsonObject().entrySet();
+
+    for (Map.Entry<String, JsonElement> entry : entries) {
+
+      if (!schemaObject.containsKey(entry.getKey())) {
+        throw new CrudException("Invalid property: " + entry.getKey(), Status.BAD_REQUEST);
+      } else {
+        Object value = CrudServiceUtil.validateFieldType(entry.getValue().getAsString(),
+            schemaObject.get(entry.getKey()));
+        builder.property(entry.getKey(), value);
+      }
+
+    }
+
+  }
+
+  public static Edge validateOutgoingPayload(String version, Edge edge) throws CrudException {
+
+    Edge.Builder modelEdgeBuilder = new Edge.Builder(edge.getType()).id(edge.getId()
+        .get()).source(edge.getSource())
+        .target(edge.getTarget());
+
+    RelationshipSchema schema = RelationshipSchemaLoader.getSchemaForVersion(version);
+
+    String key = edge.getSource().getType() + ":" + edge.getTarget().getType()
+        + ":" + edge.getType();
+    Map<String, Class<?>> schemaObject = schema.lookupRelation(key);
+
+    if (schemaObject == null || schemaObject.isEmpty()) {
+      return edge;
+    }
+
+    for (String prop : edge.getProperties().keySet()) {
+      if (schemaObject.containsKey(prop)) {
+        modelEdgeBuilder.property(prop, edge.getProperties().get(prop));
+      }
+
+    }
+    return modelEdgeBuilder.build();
+  }
+
+    
+  public static String vertexTypeFromUri(String uri) throws CrudException {
+      
+    Matcher matcher = urlPattern.matcher(uri);
+
+    if (!matcher.matches()) {
+      throw new CrudException("Invalid Source/Target Urls", Status.BAD_REQUEST);
+    }
+
+    return matcher.group(2);
+  }
+}