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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.parsers.relationship;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import org.apache.tinkerpop.gremlin.structure.Direction;
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.ModelType;
import org.openecomp.aai.introspection.Version;
import org.openecomp.aai.logging.AAILogger;
import org.openecomp.aai.logging.LogLineBuilder;
import org.openecomp.aai.serialization.db.EdgeRule;
import org.openecomp.aai.serialization.db.EdgeRules;
import org.openecomp.aai.workarounds.LegacyURLTransformer;
import com.att.aft.dme2.internal.javaxwsrs.core.UriBuilder;
/**
* The Class RelationshipToURI.
*/
public class RelationshipToURI {
private final String className = RelationshipToURI.class.getSimpleName();
private AAILogger aaiLogger = new AAILogger(RelationshipToURI.class.getName());
private Introspector relationship = null;
private Loader loader = null;
private ModelType modelType = null;
private EdgeRules edgeRules = null;
private URI uri = null;
private LegacyURLTransformer urlTransform = null;
/**
* Instantiates a new relationship to URI.
*
* @param loader the loader
* @param relationship the relationship
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
public RelationshipToURI(Loader loader, Introspector relationship) throws UnsupportedEncodingException, AAIException {
this.relationship = relationship;
this.modelType = relationship.getModelType();
this.edgeRules = EdgeRules.getInstance();
this.loader = loader;
this.urlTransform = LegacyURLTransformer.getInstance();
this.parse();
}
/**
* Parses the.
*
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
protected void parse() throws UnsupportedEncodingException, AAIException {
String relatedLink = (String)relationship.getValue("related-link");
StringBuilder uriBuilder = new StringBuilder();
if (relatedLink != null) {
try {
URL url = new URL (relatedLink);
String path = url.toString();
uriBuilder.append(url.getPath());
} catch (MalformedURLException e) {
AAIException ex = new AAIException("AAI_3009", e);
aaiLogger.error(ex.getErrorObject(), loader.getLogLineBuilder().build(className, "could not parse url"), e);
}
}
if (uriBuilder.length() == 0) {
List<Object> data = (List<Object>)relationship.getValue("relationship-data");
Introspector wrapper = null;
String key = "";
String value = "";
String objectType = "";
String propertyName = "";
String[] split = null;
HashMap<String, Introspector> map = new HashMap<>();
for (Object datum : data) {
wrapper = IntrospectorFactory.newInstance(modelType, datum, loader.getLogLineBuilder());
key = (String)wrapper.getValue("relationship-key");
value = (String)wrapper.getValue("relationship-value");
split = key.split("\\.");
if (split == null || split.length != 2) {
throw new AAIException("AAI_3000", "incorrect format for key must be of the form {node-type}.{property-name}");
}
//check node name ok
//check prop name ok
objectType = split[0];
propertyName = split[1];
Introspector wrappedObj = loader.introspectorFromName(objectType);
if (wrappedObj == null) {
throw new AAIException("AAI_3000", "invalid object name: " + objectType);
}
if (!wrappedObj.hasProperty(propertyName)) {
throw new AAIException("AAI_3000", "invalid property name: " + propertyName);
}
if (map.containsKey(objectType)) {
wrappedObj = map.get(objectType);
} else {
map.put(objectType, wrappedObj);
}
wrappedObj.setValue(propertyName, value);
}
String startType = (String)relationship.getValue("related-to");
List<String> nodeTypes = new ArrayList<>();
nodeTypes.addAll(map.keySet());
String displacedType = "";
for (int i = 0; i < nodeTypes.size(); i++) {
if (nodeTypes.get(i).equals(startType)) {
displacedType = nodeTypes.set(nodeTypes.size() - 1, startType);
nodeTypes.set(i, displacedType);
break;
}
}
sortRelationships(nodeTypes, startType, 1);
for (String type : nodeTypes) {
uriBuilder.append(map.get(type).getURI());
}
}
this.uri = UriBuilder.fromPath(uriBuilder.toString()).build();
}
/**
* Sort relationships.
*
* @param data the data
* @param startType the start type
* @param i the i
* @return true, if successful
*/
private boolean sortRelationships(List<String> data, String startType, int i) {
if (i == data.size()) {
return true;
}
int j = 0;
String objectType = "";
String displacedObject = null;
EdgeRule rule = null;
String label = "";
Direction direction = null;
for (j = (data.size() - i) - 1; j >= 0; j--) {
objectType = data.get(j);
try {
rule = edgeRules.getEdgeRule(objectType, startType);
label = rule.getLabel();
direction = rule.getDirection();
} catch (AAIException e) {
// TODO Auto-generated catch block
}
if (!label.equals("") && (direction != null && direction.equals(Direction.OUT))) {
displacedObject = data.set((data.size() - i) - 1, data.get(j));
data.set(j, displacedObject);
if (sortRelationships(data, objectType, i+1)) {
return true;
} else {
}
}
}
return false;
}
/**
* Gets the uri.
*
* @return the uri
*/
public URI getUri() {
return uri;
}
}
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