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|
/*-
* ============LICENSE_START=======================================================
* org.openecomp.aai
* ================================================================================
* 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.openecomp.aai.serialization.db;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Future;
import javax.ws.rs.core.UriBuilder;
import org.apache.commons.collections.IteratorUtils;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
import org.apache.tinkerpop.gremlin.process.traversal.step.util.Tree;
import org.apache.tinkerpop.gremlin.structure.Direction;
import org.apache.tinkerpop.gremlin.structure.Edge;
import org.apache.tinkerpop.gremlin.structure.Element;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.apache.tinkerpop.gremlin.structure.VertexProperty;
import org.javatuples.Pair;
import org.openecomp.aai.db.props.AAIProperties;
import org.openecomp.aai.exceptions.AAIException;
import org.openecomp.aai.introspection.Introspector;
import org.openecomp.aai.introspection.IntrospectorFactory;
import org.openecomp.aai.introspection.Loader;
import org.openecomp.aai.introspection.LoaderFactory;
import org.openecomp.aai.introspection.ModelType;
import org.openecomp.aai.introspection.PropertyPredicates;
import org.openecomp.aai.introspection.Version;
import org.openecomp.aai.introspection.exceptions.AAIUnknownObjectException;
import org.openecomp.aai.introspection.sideeffect.DataCopy;
import org.openecomp.aai.introspection.sideeffect.DataLinkReader;
import org.openecomp.aai.introspection.sideeffect.DataLinkWriter;
import org.openecomp.aai.introspection.sideeffect.SideEffectRunner;
import org.openecomp.aai.logging.ErrorLogHelper;
import org.openecomp.aai.parsers.query.QueryParser;
import org.openecomp.aai.parsers.uri.URIParser;
import org.openecomp.aai.parsers.uri.URIToRelationshipObject;
import org.openecomp.aai.query.builder.QueryBuilder;
import org.openecomp.aai.schema.enums.ObjectMetadata;
import org.openecomp.aai.schema.enums.PropertyMetadata;
import org.openecomp.aai.serialization.db.exceptions.NoEdgeRuleFoundException;
import org.openecomp.aai.serialization.engines.TransactionalGraphEngine;
import org.openecomp.aai.serialization.tinkerpop.TreeBackedVertex;
import org.openecomp.aai.util.AAIApiServerURLBase;
import org.openecomp.aai.util.AAIConfig;
import org.openecomp.aai.util.AAIConstants;
import org.openecomp.aai.workarounds.NamingExceptions;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.google.common.base.CaseFormat;
import com.thinkaurelius.titan.core.SchemaViolationException;
public class DBSerializer {
private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(DBSerializer.class);
private final TransactionalGraphEngine engine;
private final String sourceOfTruth;
private final ModelType introspectionType;
private final Version version;
private final Loader latestLoader;
private final EdgeRules edgeRules = EdgeRules.getInstance();
private final Loader loader;
private final String baseURL;
/**
* Instantiates a new DB serializer.
*
* @param version the version
* @param engine the engine
* @param g the g
* @param introspectionType the introspection type
* @param sourceOfTruth the source of truth
* @param llBuilder the ll builder
* @throws AAIException
*/
public DBSerializer(Version version, TransactionalGraphEngine engine, ModelType introspectionType, String sourceOfTruth) throws AAIException {
this.engine = engine;
this.sourceOfTruth = sourceOfTruth;
this.introspectionType = introspectionType;
this.latestLoader = LoaderFactory.createLoaderForVersion(introspectionType, AAIProperties.LATEST);
this.version = version;
this.loader = LoaderFactory.createLoaderForVersion(introspectionType, version);
this.baseURL = AAIApiServerURLBase.get(version);
}
/**
* Touch standard vertex properties.
*
* @param v the v
* @param isNewVertex the is new vertex
*/
public void touchStandardVertexProperties(Vertex v, boolean isNewVertex) {
long unixTimeNow = System.currentTimeMillis();
String timeNowInSec = "" + unixTimeNow;
if (isNewVertex) {
v.property(AAIProperties.SOURCE_OF_TRUTH, this.sourceOfTruth);
v.property(AAIProperties.CREATED_TS, timeNowInSec);
}
v.property(AAIProperties.RESOURCE_VERSION, timeNowInSec );
v.property(AAIProperties.LAST_MOD_TS, timeNowInSec);
v.property(AAIProperties.LAST_MOD_SOURCE_OF_TRUTH, this.sourceOfTruth);
}
private void touchStandardVertexProperties(String nodeType, Vertex v, boolean isNewVertex) {
v.property(AAIProperties.NODE_TYPE, nodeType);
touchStandardVertexProperties(v, isNewVertex);
}
/**
* Creates the new vertex.
*
* @param wrappedObject the wrapped object
* @return the vertex
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
public Vertex createNewVertex(Introspector wrappedObject) {
Vertex v = this.engine.tx().addVertex();
touchStandardVertexProperties(wrappedObject.getDbName(), v, true);
return v;
}
/**
* Trim class name.
*
* @param className the class name
* @return the string
*/
/*
* Removes the classpath from a class name
*/
public String trimClassName (String className) {
String returnValue = "";
if (className.lastIndexOf('.') == -1) {
return className;
}
returnValue = className.substring(className.lastIndexOf('.') + 1, className.length());
return returnValue;
}
/**
* Serialize to db.
*
* @param obj the obj
* @param v the v
* @param uriQuery the uri query
* @param identifier the identifier
* @throws SecurityException the security exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws InstantiationException the instantiation exception
* @throws InterruptedException the interrupted exception
* @throws NoSuchMethodException the no such method exception
* @throws AAIException the AAI exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIUnknownObjectException
*/
public void serializeToDb(Introspector obj, Vertex v, QueryParser uriQuery, String identifier, String requestContext) throws AAIException, UnsupportedEncodingException {
try {
if (uriQuery.isDependent()) {
//try to find the parent
List<Vertex> vertices = uriQuery.getQueryBuilder().getParentQuery().toList();
if (!vertices.isEmpty()) {
Vertex parent = vertices.get(0);
this.reflectDependentVertex(parent, v, obj, requestContext);
} else {
throw new AAIException("AAI_6114", "No parent Node of type " + uriQuery.getParentResultType() + " for " + identifier);
}
} else {
serializeSingleVertex(v, obj, requestContext);
}
} catch (SchemaViolationException e) {
throw new AAIException("AAI_6117", e);
}
}
public void serializeSingleVertex(Vertex v, Introspector obj, String requestContext) throws UnsupportedEncodingException, AAIException {
try {
boolean isTopLevel = obj.isTopLevel();
if (isTopLevel) {
v.property(AAIProperties.AAI_URI, obj.getURI());
}
processObject(obj, v, requestContext);
if (!isTopLevel) {
URI uri = this.getURIForVertex(v);
URIParser parser = new URIParser(this.loader, uri);
if (parser.validate()) {
VertexProperty<String> uriProp = v.property(AAIProperties.AAI_URI);
if (!uriProp.isPresent() || uriProp.isPresent() && !uriProp.value().equals(uri.toString())) {
v.property(AAIProperties.AAI_URI, uri.toString());
}
}
}
} catch (SchemaViolationException e) {
throw new AAIException("AAI_6117", e);
}
}
/**
* Process object.
*
* @param <T> the generic type
* @param obj the obj
* @param v the v
* @return the list
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws InstantiationException the instantiation exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws AAIException the AAI exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIUnknownObjectException
*/
/*
* Helper method for reflectToDb
* Handles all the property setting
*/
private <T> List<Vertex> processObject (Introspector obj, Vertex v, String requestContext) throws UnsupportedEncodingException, AAIException {
Set<String> properties = new LinkedHashSet<>(obj.getProperties());
properties.remove(AAIProperties.RESOURCE_VERSION);
List<Vertex> dependentVertexes = new ArrayList<>();
List<Vertex> processedVertexes = new ArrayList<>();
boolean isComplexType = false;
boolean isListType = false;
if (!obj.isContainer()) {
this.touchStandardVertexProperties(obj.getDbName(), v, false);
}
this.executePreSideEffects(obj, v);
for (String property : properties) {
Object value = null;
final String propertyType;
propertyType = obj.getType(property);
isComplexType = obj.isComplexType(property);
isListType = obj.isListType(property);
value = obj.getValue(property);
if (!(isComplexType || isListType)) {
boolean canModify = this.canModify(obj, property, requestContext);
if (canModify) {
final Map<PropertyMetadata, String> metadata = obj.getPropertyMetadata(property);
String dbProperty = property;
if (metadata.containsKey(PropertyMetadata.DB_ALIAS)) {
dbProperty = metadata.get(PropertyMetadata.DB_ALIAS);
}
if (metadata.containsKey(PropertyMetadata.DATA_LINK)) {
//data linked properties are ephemeral
//they are populated dynamically on GETs
continue;
}
if (value != null) {
if (!value.equals(v.property(dbProperty).orElse(null))) {
if (propertyType.toLowerCase().contains(".long")) {
v.property(dbProperty, new Integer(((Long)value).toString()));
} else {
v.property(dbProperty, value);
}
}
} else {
v.property(dbProperty).remove();
}
}
} else if (isListType) {
List<Object> list = (List<Object>)value;
if (obj.isComplexGenericType(property)) {
if (list != null) {
for (Object o : list) {
Introspector child = IntrospectorFactory.newInstance(this.introspectionType, o);
child.setURIChain(obj.getURI());
processedVertexes.add(reflectDependentVertex(v, child, requestContext));
}
}
} else {
//simple list case
engine.setListProperty(v, property, list);
}
} else {
//method.getReturnType() is not 'simple' then create a vertex and edge recursively returning an edge back to this method
if (value != null) { //effectively ignore complex properties not included in the object we're processing
if (value.getClass().isArray()) {
int length = Array.getLength(value);
for (int i = 0; i < length; i ++) {
Object arrayElement = Array.get(value, i);
Introspector child = IntrospectorFactory.newInstance(this.introspectionType, arrayElement);
child.setURIChain(obj.getURI());
processedVertexes.add(reflectDependentVertex(v, child, requestContext));
}
} else if (!property.equals("relationship-list")) {
// container case
Introspector introspector = IntrospectorFactory.newInstance(this.introspectionType, value);
if (introspector.isContainer()) {
dependentVertexes.addAll(this.engine.getQueryEngine().findChildrenOfType(v, introspector.getChildDBName()));
introspector.setURIChain(obj.getURI());
processedVertexes.addAll(processObject(introspector, v, requestContext));
} else {
dependentVertexes.addAll(this.engine.getQueryEngine().findChildrenOfType(v, introspector.getDbName()));
processedVertexes.add(reflectDependentVertex(v, introspector, requestContext));
}
} else if (property.equals("relationship-list")) {
handleRelationships(obj, v);
}
}
}
}
this.writeThroughDefaults(v, obj);
/* handle those vertexes not touched */
for (Vertex toBeRemoved : processedVertexes) {
dependentVertexes.remove(toBeRemoved);
}
this.deleteItemsWithTraversal(dependentVertexes);
this.executePostSideEffects(obj, v);
return processedVertexes;
}
/**
* Handle relationships.
*
* @param obj the obj
* @param vertex the vertex
* @throws SecurityException the security exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
/*
* Handles the explicit relationships defined for an obj
*/
private void handleRelationships(Introspector obj, Vertex vertex) throws UnsupportedEncodingException, AAIException {
Introspector wrappedRl = obj.getWrappedValue("relationship-list");
processRelationshipList(wrappedRl, vertex);
}
/**
* Process relationship list.
*
* @param wrapped the wrapped
* @param v the v
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
private void processRelationshipList(Introspector wrapped, Vertex v) throws UnsupportedEncodingException, AAIException {
List<Object> relationships = (List<Object>)wrapped.getValue("relationship");
List<Pair<Vertex, Vertex>> addEdges = new ArrayList<>();
List<Edge> existingEdges = this.engine.getQueryEngine().findEdgesForVersion(v, wrapped.getLoader());
for (Object relationship : relationships) {
Edge e = null;
Vertex cousinVertex = null;
Introspector wrappedRel = IntrospectorFactory.newInstance(this.introspectionType, relationship);
QueryParser parser = engine.getQueryBuilder().createQueryFromRelationship(wrappedRel);
List<Vertex> results = parser.getQueryBuilder().toList();
if (results.isEmpty()) {
final AAIException ex = new AAIException("AAI_6129", "Node of type " + parser.getResultType() + ". Could not find object at: " + parser.getUri());
ex.getTemplateVars().add(parser.getResultType());
ex.getTemplateVars().add(parser.getUri().toString());
throw ex;
} else {
//still an issue if there's more than one
cousinVertex = results.get(0);
}
if (cousinVertex != null) {
try {
if (!edgeRules.hasEdgeRule(v, cousinVertex)) {
throw new AAIException("AAI_6120", "No EdgeRule found for passed nodeTypes: " + v.property(AAIProperties.NODE_TYPE).value().toString() + ", "
+ cousinVertex.property(AAIProperties.NODE_TYPE).value().toString() + ".");
}
e = this.getEdgeBetween(EdgeType.COUSIN, v, cousinVertex);
if (e == null) {
addEdges.add(new Pair<>(v, cousinVertex));
} else {
existingEdges.remove(e);
}
} catch (NoEdgeRuleFoundException e1) {
throw new AAIException("AAI_6145");
}
}
}
for (Edge edge : existingEdges) {
edge.remove();
}
for (Pair<Vertex, Vertex> pair : addEdges) {
try {
edgeRules.addEdge(this.engine.asAdmin().getTraversalSource(), pair.getValue0(), pair.getValue1());
} catch (NoEdgeRuleFoundException e) {
throw new AAIException("AAI_6129", e);
}
}
}
/**
* Write through defaults.
*
* @param v the v
* @param obj the obj
* @throws AAIUnknownObjectException
*/
private void writeThroughDefaults(Vertex v, Introspector obj) throws AAIUnknownObjectException {
Introspector latest = this.latestLoader.introspectorFromName(obj.getName());
if (latest != null) {
Set<String> required = latest.getRequiredProperties();
for (String field : required) {
String defaultValue = null;
Object vertexProp = null;
defaultValue = latest.getPropertyMetadata(field).get(PropertyMetadata.DEFAULT_VALUE);
if (defaultValue != null) {
vertexProp = v.<Object>property(field).orElse(null);
if (vertexProp == null) {
v.property(field, defaultValue);
}
}
}
}
}
/**
* Reflect dependent vertex.
*
* @param v the v
* @param dependentObj the dependent obj
* @return the vertex
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws InstantiationException the instantiation exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws AAIException the AAI exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIUnknownObjectException
*/
private Vertex reflectDependentVertex(Vertex v, Introspector dependentObj, String requestContext) throws AAIException, UnsupportedEncodingException {
//QueryParser p = this.engine.getQueryBuilder().createQueryFromURI(obj.getURI());
//List<Vertex> items = p.getQuery().toList();
QueryBuilder query = this.engine.getQueryBuilder(v);
query.createEdgeTraversal(EdgeType.TREE, v, dependentObj);
query.createKeyQuery(dependentObj);
List<Vertex> items = query.toList();
Vertex dependentVertex = null;
if (items.size() == 1) {
dependentVertex = items.get(0);
this.verifyResourceVersion("update", dependentObj.getDbName(), dependentVertex.<String>property(AAIProperties.RESOURCE_VERSION).orElse(null), (String)dependentObj.getValue(AAIProperties.RESOURCE_VERSION), (String)dependentObj.getURI());
} else {
this.verifyResourceVersion("create", dependentObj.getDbName(), "", (String)dependentObj.getValue(AAIProperties.RESOURCE_VERSION), (String)dependentObj.getURI());
dependentVertex = createNewVertex(dependentObj);
}
return reflectDependentVertex(v, dependentVertex, dependentObj, requestContext);
}
/**
* Reflect dependent vertex.
*
* @param parent the parent
* @param child the child
* @param obj the obj
* @return the vertex
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws InstantiationException the instantiation exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws AAIException the AAI exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIUnknownObjectException
*/
private Vertex reflectDependentVertex(Vertex parent, Vertex child, Introspector obj, String requestContext) throws AAIException, UnsupportedEncodingException {
String parentUri = parent.<String>property(AAIProperties.AAI_URI).orElse(null);
if (parentUri != null) {
String uri;
uri = obj.getURI();
child.property(AAIProperties.AAI_URI, parentUri + uri);
}
processObject(obj, child, requestContext);
Edge e;
e = this.getEdgeBetween(EdgeType.TREE, parent, child);
if (e == null) {
String canBeLinked = obj.getMetadata(ObjectMetadata.CAN_BE_LINKED);
if (canBeLinked != null && canBeLinked.equals("true")) {
boolean isFirst = !this.engine.getQueryBuilder(parent).createEdgeTraversal(EdgeType.TREE, parent, obj).hasNext();
if (isFirst) {
child.property(AAIProperties.LINKED, true);
}
}
edgeRules.addTreeEdge(this.engine.asAdmin().getTraversalSource(), parent, child);
}
return child;
}
/**
* Db to object.
*
* @param vertices the vertices
* @param obj the obj
* @param depth the depth
* @param cleanUp the clean up
* @return the introspector
* @throws AAIException the AAI exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws SecurityException the security exception
* @throws InstantiationException the instantiation exception
* @throws NoSuchMethodException the no such method exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws MalformedURLException the malformed URL exception
* @throws AAIUnknownObjectException
* @throws URISyntaxException
*/
public Introspector dbToObject(List<Vertex> vertices, final Introspector obj, int depth, boolean nodeOnly, String cleanUp) throws UnsupportedEncodingException, AAIException {
final int internalDepth;
if (depth == Integer.MAX_VALUE) {
internalDepth = depth--;
} else {
internalDepth = depth;
}
if (vertices.size() > 1 && !obj.isContainer()) {
throw new AAIException("AAI_6136", "query object mismatch: this object cannot hold multiple items." + obj.getDbName());
} else if (obj.isContainer()) {
final List getList;
String listProperty = null;
for (String property : obj.getProperties()) {
if (obj.isListType(property) && obj.isComplexGenericType(property)) {
listProperty = property;
break;
}
}
final String propertyName = listProperty;
getList = (List)obj.getValue(listProperty);
/* This is an experimental multithreading experiment
* on get alls.
*/
ExecutorService pool = GetAllPool.getInstance().getPool();
List<Future<Object>> futures = new ArrayList<>();
for (Vertex v : vertices) {
Callable<Object> task = () -> {
Set<Vertex> seen = new HashSet<>();
Introspector childObject = obj.newIntrospectorInstanceOfNestedProperty(propertyName);
Tree<Element> tree = this.engine.getQueryEngine().findSubGraph(v, internalDepth, nodeOnly);
TreeBackedVertex treeVertex = new TreeBackedVertex(v, tree);
dbToObject(childObject, treeVertex, seen, internalDepth, nodeOnly, cleanUp);
return childObject.getUnderlyingObject();
//getList.add(childObject.getUnderlyingObject());
};
futures.add(pool.submit(task));
}
for (Future<Object> future : futures) {
try {
getList.add(future.get());
} catch (ExecutionException e) {
throw new AAIException("AAI_4000", e);
} catch (InterruptedException e) {
throw new AAIException("AAI_4000", e);
}
}
} else if (vertices.size() == 1) {
Set<Vertex> seen = new HashSet<>();
Tree<Element> tree = this.engine.getQueryEngine().findSubGraph(vertices.get(0), depth, nodeOnly);
TreeBackedVertex treeVertex = new TreeBackedVertex(vertices.get(0), tree);
dbToObject(obj, treeVertex, seen, depth, nodeOnly, cleanUp);
} else {
//obj = null;
}
return obj;
}
/**
* Db to object.
*
* @param obj the obj
* @param v the v
* @param seen the seen
* @param depth the depth
* @param cleanUp the clean up
* @return the introspector
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws SecurityException the security exception
* @throws InstantiationException the instantiation exception
* @throws NoSuchMethodException the no such method exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
* @throws MalformedURLException the malformed URL exception
* @throws AAIUnknownObjectException
* @throws URISyntaxException
*/
private Introspector dbToObject(Introspector obj, Vertex v, Set<Vertex> seen, int depth, boolean nodeOnly, String cleanUp) throws AAIException, UnsupportedEncodingException {
if (depth < 0) {
return null;
}
depth--;
seen.add(v);
boolean modified = false;
for (String property : obj.getProperties(PropertyPredicates.isVisible())) {
List<Object> getList = null;
Vertex[] vertices = null;
if (!(obj.isComplexType(property) || obj.isListType(property))) {
this.copySimpleProperty(property, obj, v);
modified = true;
} else {
if (obj.isComplexType(property)) {
/* container case */
if (!property.equals("relationship-list") && depth >= 0) {
Introspector argumentObject = obj.newIntrospectorInstanceOfProperty(property);
Object result = dbToObject(argumentObject, v, seen, depth+1, nodeOnly, cleanUp);
if (result != null) {
obj.setValue(property, argumentObject.getUnderlyingObject());
modified = true;
}
} else if (property.equals("relationship-list") && !nodeOnly){
/* relationships need to be handled correctly */
Introspector relationshipList = obj.newIntrospectorInstanceOfProperty(property);
relationshipList = createRelationshipList(v, relationshipList, cleanUp);
if (relationshipList != null) {
modified = true;
obj.setValue(property, relationshipList.getUnderlyingObject());
modified = true;
}
}
} else if (obj.isListType(property)) {
if (property.equals("any")) {
continue;
}
String genericType = obj.getGenericTypeClass(property).getSimpleName();
if (obj.isComplexGenericType(property) && depth >= 0) {
final String childDbName = convertFromCamelCase(genericType);
String vType = v.<String>property(AAIProperties.NODE_TYPE).orElse(null);
EdgeRule rule;
rule = edgeRules.getEdgeRule(EdgeType.TREE, vType, childDbName);
if (!rule.getContains().equals(AAIDirection.NONE.toString())) {
//vertices = this.queryEngine.findRelatedVertices(v, Direction.OUT, rule.getLabel(), childDbName);
Direction ruleDirection = rule.getDirection();
Iterator<Vertex> itr = v.vertices(ruleDirection, rule.getLabel());
List<Vertex> verticesList = (List<Vertex>)IteratorUtils.toList(itr);
itr = verticesList.stream().filter(item -> {
return item.property(AAIProperties.NODE_TYPE).orElse("").equals(childDbName);
}).iterator();
if (itr.hasNext()) {
getList = (List<Object>)obj.getValue(property);
}
int processed = 0;
int removed = 0;
while (itr.hasNext()) {
Vertex childVertex = itr.next();
if (!seen.contains(childVertex)) {
Introspector argumentObject = obj.newIntrospectorInstanceOfNestedProperty(property);
Object result = dbToObject(argumentObject, childVertex, seen, depth, nodeOnly, cleanUp);
if (result != null) {
getList.add(argumentObject.getUnderlyingObject());
}
processed++;
} else {
removed++;
LOGGER.warn("Cycle found while serializing vertex id={}", childVertex.id().toString());
}
}
if (processed == 0) {
//vertices were all seen, reset the list
getList = null;
}
if (processed > 0) {
modified = true;
}
}
} else if (obj.isSimpleGenericType(property)) {
List<Object> temp = this.engine.getListProperty(v, property);
if (temp != null) {
getList = (List<Object>)obj.getValue(property);
getList.addAll(temp);
modified = true;
}
}
}
}
}
//no changes were made to this obj, discard the instance
if (!modified) {
return null;
}
this.enrichData(obj, v);
return obj;
}
public Introspector getVertexProperties(Vertex v) throws AAIException, UnsupportedEncodingException {
String nodeType = v.<String>property(AAIProperties.NODE_TYPE).orElse(null);
if (nodeType == null) {
throw new AAIException("AAI_6143");
}
Introspector obj = this.latestLoader.introspectorFromName(nodeType);
Set<Vertex> seen = new HashSet<>();
int depth = 0;
String cleanUp = "false";
boolean nodeOnly = true;
this.dbToObject(obj, v, seen, depth, nodeOnly, cleanUp);
return obj;
}
public Introspector getLatestVersionView(Vertex v) throws AAIException, UnsupportedEncodingException {
String nodeType = v.<String>property(AAIProperties.NODE_TYPE).orElse(null);
if (nodeType == null) {
throw new AAIException("AAI_6143");
}
Introspector obj = this.latestLoader.introspectorFromName(nodeType);
Set<Vertex> seen = new HashSet<>();
int depth = AAIProperties.MAXIMUM_DEPTH;
String cleanUp = "false";
boolean nodeOnly = false;
Tree<Element> tree = this.engine.getQueryEngine().findSubGraph(v, depth, nodeOnly);
TreeBackedVertex treeVertex = new TreeBackedVertex(v, tree);
this.dbToObject(obj, treeVertex, seen, depth, nodeOnly, cleanUp);
return obj;
}
/**
* Copy simple property.
*
* @param property the property
* @param obj the obj
* @param v the v
* @throws InstantiationException the instantiation exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
*/
private void copySimpleProperty(String property, Introspector obj, Vertex v) {
final Map<PropertyMetadata, String> metadata = obj.getPropertyMetadata(property);
String dbPropertyName = property;
if (metadata.containsKey(PropertyMetadata.DB_ALIAS)) {
dbPropertyName = metadata.get(PropertyMetadata.DB_ALIAS);
}
final Object temp = v.<Object>property(dbPropertyName).orElse(null);
if (temp != null) {
obj.setValue(property, temp);
}
}
/**
* Simple db to object.
*
* @param obj the obj
* @param v the v
* @throws InstantiationException the instantiation exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
*/
private void simpleDbToObject (Introspector obj, Vertex v) {
for (String property : obj.getProperties()) {
if (!(obj.isComplexType(property) || obj.isListType(property))) {
this.copySimpleProperty(property, obj, v);
}
}
}
/**
* Creates the relationship list.
*
* @param v the v
* @param obj the obj
* @param cleanUp the clean up
* @return the object
* @throws InstantiationException the instantiation exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
* @throws MalformedURLException the malformed URL exception
* @throws URISyntaxException
*/
private Introspector createRelationshipList(Vertex v, Introspector obj, String cleanUp) throws UnsupportedEncodingException, AAIException {
List<Vertex> cousins = this.engine.getQueryEngine().findCousinVertices(v);
List<Object> relationshipObjList = obj.getValue("relationship");
for (Vertex cousin : cousins) {
Introspector relationshipObj = obj.newIntrospectorInstanceOfNestedProperty("relationship");
Object result = processEdgeRelationship(relationshipObj, cousin, cleanUp);
if (result != null) {
relationshipObjList.add(result);
}
}
if (relationshipObjList.isEmpty()) {
return null;
} else {
return obj;
}
}
/**
* Process edge relationship.
*
* @param relationshipObj the relationship obj
* @param edge the edge
* @param direction the direction
* @param cleanUp the clean up
* @return the object
* @throws InstantiationException the instantiation exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
* @throws MalformedURLException the malformed URL exception
* @throws AAIUnknownObjectException
* @throws URISyntaxException
*/
private Object processEdgeRelationship(Introspector relationshipObj, Vertex cousin, String cleanUp) throws UnsupportedEncodingException, AAIUnknownObjectException {
//we must look up all parents in this case because we need to compute name-properties
//we cannot used the cached aaiUri to perform this action currently
Optional<Pair<Vertex, List<Introspector>>> tuple = this.getParents(relationshipObj.getLoader(), cousin, "true".equals(cleanUp));
//damaged vertex found, ignore
if (!tuple.isPresent()) {
return null;
}
List<Introspector> list = tuple.get().getValue1();
URI uri = this.getURIFromList(list);
URIToRelationshipObject uriParser = null;
Introspector result = null;
try {
uriParser = new URIToRelationshipObject(relationshipObj.getLoader(), uri, this.baseURL);
result = uriParser.getResult();
} catch (AAIException | URISyntaxException e) {
LOGGER.error("Error while processing edge relationship in version " + relationshipObj.getVersion() + " (bad vertex ID=" + tuple.get().getValue0().id().toString() + ": " + e.getMessage(), e);
if ("true".equals(cleanUp)) {
this.deleteWithTraversal(tuple.get().getValue0());
}
return null;
}
if(list.size() > 0 && this.version.compareTo(Version.v8) >= 0){
this.addRelatedToProperty(result, list.get(0));
}
return result.getUnderlyingObject();
}
/**
* Gets the URI for vertex.
*
* @param v the v
* @return the URI for vertex
* @throws InstantiationException the instantiation exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIUnknownObjectException
*/
public URI getURIForVertex(Vertex v) throws UnsupportedEncodingException {
return getURIForVertex(v, false);
}
public URI getURIForVertex(Vertex v, boolean overwrite) throws UnsupportedEncodingException {
URI uri = UriBuilder.fromPath("/unknown-uri").build();
String aaiUri = v.<String>property(AAIProperties.AAI_URI).orElse(null);
if (aaiUri != null && !overwrite) {
uri = UriBuilder.fromPath(aaiUri).build();
} else {
Optional<Pair<Vertex, List<Introspector>>> tuple = this.getParents(this.loader, v, false);
if (tuple.isPresent()) {
List<Introspector> list = tuple.get().getValue1();
uri = this.getURIFromList(list);
}
}
return uri;
}
/**
* Gets the URI from list.
*
* @param list the list
* @return the URI from list
* @throws UnsupportedEncodingException the unsupported encoding exception
*/
private URI getURIFromList(List<Introspector> list) throws UnsupportedEncodingException {
String uri = "";
StringBuilder sb = new StringBuilder();
for (Introspector i : list) {
sb.insert(0, i.getURI());
}
uri = sb.toString();
URI result = UriBuilder.fromPath(uri).build();
return result;
}
/**
* Gets the parents.
*
* @param start the start
* @param removeDamaged the remove damaged
* @return the parents
* @throws InstantiationException the instantiation exception
* @throws IllegalAccessException the illegal access exception
* @throws IllegalArgumentException the illegal argument exception
* @throws InvocationTargetException the invocation target exception
* @throws NoSuchMethodException the no such method exception
* @throws SecurityException the security exception
* @throws AAIUnknownObjectException
*/
private Optional<Pair<Vertex, List<Introspector>>> getParents(Loader loader, Vertex start, boolean removeDamaged) {
List<Vertex> results = this.engine.getQueryEngine().findParents(start);
List<Introspector> objs = new ArrayList<>();
boolean shortCircuit = false;
for (Vertex v : results) {
String nodeType = v.<String>property(AAIProperties.NODE_TYPE).orElse(null);
Introspector obj = null;
//vertex on the other end of this edge is bad
if (nodeType == null) {
//log something here about what was found and that it was removed
ErrorLogHelper.logError("AAI-6143", "Found a damaged parent vertex " + v.id().toString());
if (removeDamaged) {
this.deleteWithTraversal(v);
}
shortCircuit = true;
} else {
try {
obj = loader.introspectorFromName(nodeType);
} catch (AAIUnknownObjectException e) {
LOGGER.info("attempted to create node type " + nodeType + " but we do not understand it for version: " + loader.getVersion());
obj = null;
}
}
if (obj == null) {
//can't make a valid path because we don't understand this object
// don't include it
} else {
this.simpleDbToObject(obj, v);
objs.add(obj);
}
}
//stop processing and don't return anything for this bad vertex
if (shortCircuit) {
return Optional.empty();
}
return Optional.of(new Pair<>(results.get(results.size()-1), objs));
}
/**
* Takes a list of vertices and a list of objs and assumes they are in
* the order you want the URIs to be nested.
* [A,B,C] creates uris [A, AB, ABC]
* @param vertices
* @param objs
* @throws UnsupportedEncodingException
* @throws URISyntaxException
*/
public void setCachedURIs(List<Vertex> vertices, List<Introspector> objs) throws UnsupportedEncodingException, URISyntaxException {
String uriChain = "";
for (int i = 0; i < vertices.size(); i++) {
String aaiUri = "";
Vertex v = null;
v = vertices.get(i);
aaiUri = v.<String>property(AAIProperties.AAI_URI).orElse(null);
if (aaiUri != null) {
uriChain += aaiUri;
} else {
URI uri = UriBuilder.fromPath(objs.get(i).getURI()).build();
aaiUri = uri.toString();
uriChain += aaiUri;
v.property(AAIProperties.AAI_URI, uriChain);
}
}
}
/**
* Adds the r
* @throws AAIUnknownObjectException
* @throws IllegalArgumentException elated to property.
*
* @param relationship the relationship
* @param child the throws IllegalArgumentException, AAIUnknownObjectException child
*/
public void addRelatedToProperty(Introspector relationship, Introspector child) throws AAIUnknownObjectException {
String nameProps = child.getMetadata(ObjectMetadata.NAME_PROPS);
List<Introspector> relatedToProperties = new ArrayList<>();
if (nameProps != null) {
String[] props = nameProps.split(",");
for (String prop : props) {
Introspector relatedTo = relationship.newIntrospectorInstanceOfNestedProperty("related-to-property");
relatedTo.setValue("property-key", child.getDbName() + "." + prop);
relatedTo.setValue("property-value", child.getValue(prop));
relatedToProperties.add(relatedTo);
}
}
if (relatedToProperties.size() > 0) {
List relatedToList = (List)relationship.getValue("related-to-property");
for (Introspector obj : relatedToProperties) {
relatedToList.add(obj.getUnderlyingObject());
}
}
}
/**
* Creates the edge.
*
* @param relationship the relationship
* @param inputVertex the input vertex
* @return true, if successful
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
public boolean createEdge(Introspector relationship, Vertex inputVertex) throws UnsupportedEncodingException, AAIException {
Vertex relatedVertex = null;
QueryParser parser = engine.getQueryBuilder().createQueryFromRelationship(relationship);
List<Vertex> results = parser.getQueryBuilder().toList();
if (results.size() == 0) {
AAIException e = new AAIException("AAI_6129", "Node of type " + parser.getResultType() + ". Could not find object at: " + parser.getUri());
e.getTemplateVars().add(parser.getResultType());
e.getTemplateVars().add(parser.getUri().toString());
throw e;
} else {
//still an issue if there's more than one
relatedVertex = results.get(0);
}
if (relatedVertex != null) {
Edge e;
try {
e = this.getEdgeBetween(EdgeType.COUSIN, inputVertex, relatedVertex);
if (e == null) {
edgeRules.addEdge(this.engine.asAdmin().getTraversalSource(), inputVertex, relatedVertex);
} else {
//attempted to link two vertexes already linked
}
} catch (NoEdgeRuleFoundException e1) {
throw new AAIException("AAI_6129", e1);
}
}
return true;
}
/**
* Gets the edges between.
*
* @param aVertex the out vertex
* @param bVertex the in vertex
* @return the edges between
* @throws AAIException the AAI exception
* @throws NoEdgeRuleFoundException
*/
private List<Edge> getEdgesBetween(EdgeType type, Vertex aVertex, Vertex bVertex) throws AAIException, NoEdgeRuleFoundException {
List<Edge> result = new ArrayList<>();
if (bVertex != null) {
EdgeRule rule = edgeRules.getEdgeRule(type, aVertex, bVertex);
GraphTraversal<Vertex, Edge> findEdgesBetween = null;
findEdgesBetween = this.engine.asAdmin().getTraversalSource().V(aVertex).bothE(rule.getLabel()).filter(__.otherV().hasId(bVertex.id()));
List<Edge> edges = findEdgesBetween.toList();
for (Edge edge : edges) {
if (edge.label().equals(rule.getLabel())) {
result.add(edge);
}
}
}
return result;
}
/**
* Gets the edge between.
*
* @param aVertex the out vertex
* @param bVertex the in vertex
* @return the edge between
* @throws AAIException the AAI exception
* @throws NoEdgeRuleFoundException
*/
public Edge getEdgeBetween(EdgeType type, Vertex aVertex, Vertex bVertex) throws AAIException {
if (bVertex != null) {
List<Edge> edges = this.getEdgesBetween(type, aVertex, bVertex);
if (edges.size() > 0) {
return edges.get(0);
}
}
return null;
}
/**
* Delete edge.
*
* @param relationship the relationship
* @param inputVertex the input vertex
* @return true, if successful
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
public boolean deleteEdge(Introspector relationship, Vertex inputVertex) throws UnsupportedEncodingException, AAIException {
Vertex relatedVertex = null;
QueryParser parser = engine.getQueryBuilder().createQueryFromRelationship(relationship);
List<Vertex> results = parser.getQueryBuilder().toList();
if (results.size() == 0) {
return false;
}
relatedVertex = results.get(0);
Edge edge;
try {
edge = this.getEdgeBetween(EdgeType.COUSIN, inputVertex, relatedVertex);
} catch (NoEdgeRuleFoundException e) {
throw new AAIException("AAI_6129", e);
}
if (edge != null) {
edge.remove();
return true;
} else {
return false;
}
}
/**
* Delete items with traversal.
*
* @param vertexes the vertexes
* @throws IllegalStateException the illegal state exception
*/
public void deleteItemsWithTraversal(List<Vertex> vertexes) throws IllegalStateException {
for (Vertex v : vertexes) {
LOGGER.debug("About to delete the vertex with id: " + v.id());
deleteWithTraversal(v);
}
}
/**
* Delete with traversal.
*
* @param startVertex the start vertex
*/
public void deleteWithTraversal(Vertex startVertex) {
List<Vertex> results = this.engine.getQueryEngine().findDeletable(startVertex);
for (Vertex v : results) {
LOGGER.warn("Removing vertex " + v.id().toString());
v.remove();
}
}
/**
* Delete.
*
* @param v the v
* @param resourceVersion the resource version
* @throws IllegalArgumentException the illegal argument exception
* @throws AAIException the AAI exception
* @throws InterruptedException the interrupted exception
*/
public void delete(Vertex v, String resourceVersion, boolean enableResourceVersion) throws IllegalArgumentException, AAIException {
boolean result = verifyDeleteSemantics(v, resourceVersion, enableResourceVersion);
if (result) {
try {
deleteWithTraversal(v);
} catch (IllegalStateException e) {
throw new AAIException("AAI_6110", e);
}
}
}
/**
* Verify delete semantics.
*
* @param vertex the vertex
* @param resourceVersion the resource version
* @return true, if successful
* @throws AAIException the AAI exception
*/
private boolean verifyDeleteSemantics(Vertex vertex, String resourceVersion, boolean enableResourceVersion) throws AAIException {
boolean result = true;
String nodeType = "";
String errorDetail = " unknown delete semantic found";
String aaiExceptionCode = "";
nodeType = vertex.<String>property(AAIProperties.NODE_TYPE).orElse(null);
if (enableResourceVersion && !this.verifyResourceVersion("delete", nodeType, vertex.<String>property(AAIProperties.RESOURCE_VERSION).orElse(null), resourceVersion, nodeType)) {
}
List<Object> preventDeleteVertices = this.engine.asAdmin().getReadOnlyTraversalSource().V(vertex).union(__.inE().has(EdgeProperty.PREVENT_DELETE.toString(), AAIDirection.IN.toString()).outV().values(AAIProperties.NODE_TYPE), __.outE().has(EdgeProperty.PREVENT_DELETE.toString(), AAIDirection.OUT.toString()).inV().values(AAIProperties.NODE_TYPE)).dedup().toList();
if (preventDeleteVertices.size() > 0) {
aaiExceptionCode = "AAI_6110";
errorDetail = String.format("Object is being reference by additional objects preventing it from being deleted. Please clean up references from the following types %s", preventDeleteVertices);
result = false;
}
if (!result) {
throw new AAIException(aaiExceptionCode, errorDetail);
}
return result;
}
/**
* Verify resource version.
*
* @param action the action
* @param nodeType the node type
* @param currentResourceVersion the current resource version
* @param resourceVersion the resource version
* @param uri the uri
* @return true, if successful
* @throws AAIException the AAI exception
*/
public boolean verifyResourceVersion(String action, String nodeType, String currentResourceVersion, String resourceVersion, String uri) throws AAIException {
String enabled = "";
String errorDetail = "";
String aaiExceptionCode = "";
if (currentResourceVersion == null) {
currentResourceVersion = "";
}
if (resourceVersion == null) {
resourceVersion = "";
}
try {
enabled = AAIConfig.get(AAIConstants.AAI_RESVERSION_ENABLEFLAG);
} catch (AAIException e) {
ErrorLogHelper.logException(e);
}
// We're only doing the resource version checks for v5 and later
if (enabled.equals("true") && this.version.compareTo(Version.v8) > 0) {
if (!currentResourceVersion.equals(resourceVersion)) {
if (action.equals("create") && !resourceVersion.equals("")) {
errorDetail = "resource-version passed for " + action + " of " + uri;
aaiExceptionCode = "AAI_6135";
} else if (resourceVersion.equals("")) {
errorDetail = "resource-version not passed for " + action + " of " + uri;
aaiExceptionCode = "AAI_6130";
} else {
errorDetail = "resource-version MISMATCH for " + action + " of " + uri;
aaiExceptionCode = "AAI_6131";
}
throw new AAIException(aaiExceptionCode, errorDetail);
}
}
return true;
}
/**
* Convert from camel case.
*
* @param name the name
* @return the string
*/
private String convertFromCamelCase (String name) {
String result = "";
result = CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_HYPHEN, name);
NamingExceptions exceptions = NamingExceptions.getInstance();
result = exceptions.getDBName(result);
return result;
}
private boolean canModify(Introspector obj, String propName, String requestContext) {
final String readOnly = obj.getPropertyMetadata(propName).get(PropertyMetadata.READ_ONLY);
if (readOnly != null) {
final String[] items = readOnly.split(",");
for (String item : items) {
if (requestContext.equals(item)) {
return false;
}
}
}
return true;
}
private void executePreSideEffects(Introspector obj, Vertex self) throws AAIException {
SideEffectRunner runner = new SideEffectRunner
.Builder(this.engine, this).addSideEffect(DataCopy.class).build();
runner.execute(obj, self);
}
private void executePostSideEffects(Introspector obj, Vertex self) throws AAIException {
SideEffectRunner runner = new SideEffectRunner
.Builder(this.engine, this).addSideEffect(DataLinkWriter.class).build();
runner.execute(obj, self);
}
private void enrichData(Introspector obj, Vertex self) throws AAIException {
SideEffectRunner runner = new SideEffectRunner
.Builder(this.engine, this).addSideEffect(DataLinkReader.class).build();
runner.execute(obj, self);
}
}
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