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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 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.onap.aai.parsers.query;
import java.io.UnsupportedEncodingException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.*;
import java.util.Map.Entry;
import javax.ws.rs.core.MultivaluedMap;
import org.onap.aai.edges.enums.EdgeType;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.introspection.Introspector;
import org.onap.aai.introspection.Loader;
import org.onap.aai.introspection.exceptions.AAIUnknownObjectException;
import org.onap.aai.logging.LogFormatTools;
import org.onap.aai.parsers.uri.Parsable;
import org.onap.aai.parsers.uri.URIParser;
import org.onap.aai.parsers.uri.URIToObject;
import org.onap.aai.query.builder.QueryBuilder;
import org.onap.aai.restcore.util.URITools;
import org.onap.aai.schema.enums.PropertyMetadata;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The Class LegacyQueryParser.
*/
public class LegacyQueryParser extends QueryParser implements Parsable {
private static final Logger LOGGER = LoggerFactory.getLogger(LegacyQueryParser.class);
private Introspector previous = null;
/**
* Instantiates a new legacy query parser.
*
* @param loader the loader
* @param queryBuilder the query builder
* @param uri the uri
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
public LegacyQueryParser(Loader loader, QueryBuilder queryBuilder, URI uri)
throws UnsupportedEncodingException, AAIException {
super(loader, queryBuilder, uri);
URIParser parser = new URIParser(loader, uri);
parser.parse(this);
}
/**
* Instantiates a new legacy query parser.
*
* @param loader the loader
* @param queryBuilder the query builder
* @param uri the uri
* @param queryParams the query params
* @throws UnsupportedEncodingException the unsupported encoding exception
* @throws AAIException the AAI exception
*/
public LegacyQueryParser(Loader loader, QueryBuilder queryBuilder, URI uri,
MultivaluedMap<String, String> queryParams) throws UnsupportedEncodingException, AAIException {
super(loader, queryBuilder, uri);
URIParser parser = new URIParser(loader, uri, queryParams);
parser.parse(this);
}
/**
* Instantiates a new legacy query parser.
*
* @param loader the loader
* @param queryBuilder the query builder
*/
public LegacyQueryParser(Loader loader, QueryBuilder queryBuilder) {
super(loader, queryBuilder);
}
/**
* @throws AAIException
* @{inheritDoc}
*/
@Override
public void processObject(Introspector obj, EdgeType type, MultivaluedMap<String, String> uriKeys)
throws AAIException {
if (previous != null) {
this.parentResourceType = previous.getDbName();
queryBuilder.createEdgeTraversal(type, previous, obj);
}
if (previous == null) {
queryBuilder.createDBQuery(obj);
this.handleUriKeys(obj, uriKeys);
} else {
queryBuilder.createKeyQuery(obj);
this.handleUriKeys(obj, uriKeys);
}
previous = obj;
this.resultResource = obj.getDbName();
}
/**
* @{inheritDoc}
*/
@Override
public void processContainer(Introspector obj, EdgeType type, MultivaluedMap<String, String> uriKeys,
boolean isFinalContainer) throws AAIException {
if (isFinalContainer) {
if (previous != null) {
this.parentResourceType = previous.getDbName();
queryBuilder.createEdgeTraversal(type, previous, obj);
}
if (previous == null) {
queryBuilder.createContainerQuery(obj);
queryBuilder.markParentBoundary();
}
if (!uriKeys.isEmpty()) {
try {
Introspector child = obj.newIntrospectorInstanceOfNestedProperty(obj.getChildName());
this.handleUriKeys(child, uriKeys);
} catch (AAIUnknownObjectException e) {
LOGGER.warn("Skipping container child " + obj.getChildName() + " (Unknown Object) "
+ LogFormatTools.getStackTop(e));
}
}
this.resultResource = obj.getChildDBName();
this.containerResource = obj.getName();
}
}
private void handleUriKeys(Introspector obj, MultivaluedMap<String, String> uriKeys) throws AAIException {
for (String key : uriKeys.keySet()) {
// to validate whether this property exists
if (!obj.hasProperty(key)) {
throw new AAIException("AAI_3000", "property: " + key + " not found on " + obj.getDbName());
}
List<String> values = uriKeys.get(key);
String dbPropertyName = key;
Map<String, String> linkedProperties = new HashMap<>();
final Map<PropertyMetadata, String> metadata = obj.getPropertyMetadata(key);
if (metadata.containsKey(PropertyMetadata.DATA_LINK)) {
linkedProperties.put(key, metadata.get(PropertyMetadata.DATA_LINK));
}
if (metadata.containsKey(PropertyMetadata.DB_ALIAS)) {
dbPropertyName = metadata.get(PropertyMetadata.DB_ALIAS);
}
if (!linkedProperties.containsKey(key)) {
if (values.size() > 1) {
queryBuilder.getVerticesByIndexedProperty(dbPropertyName,
obj.castValueAccordingToSchema(key, values));
} else {
queryBuilder.getVerticesByIndexedProperty(dbPropertyName,
obj.castValueAccordingToSchema(key, values.get(0)));
}
}
handleLinkedProperties(obj, uriKeys, linkedProperties);
}
}
private void handleLinkedProperties(Introspector obj, MultivaluedMap<String, String> uriKeys,
Map<String, String> linkedProperties) throws AAIException {
QueryBuilder[] builders = new QueryBuilder[linkedProperties.keySet().size()];
Set<Entry<String, String>> entrySet = linkedProperties.entrySet();
int i = 0;
Iterator<Entry<String, String>> itr = entrySet.iterator();
while (itr.hasNext()) {
Entry<String, String> entry = itr.next();
Introspector child;
try {
child = new URIToObject(this.latestLoader, new URI(
URITools.replaceTemplates(obj, entry.getValue(), PropertyMetadata.DATA_LINK, true).orElse("")))
.getEntity();
} catch (IllegalArgumentException | UnsupportedEncodingException | URISyntaxException e) {
throw new AAIException("AAI_4000", e);
}
List<String> values = uriKeys.get(entry.getKey());
QueryBuilder builder = queryBuilder.newInstance();
builder.createEdgeTraversal(EdgeType.TREE, obj, child);
if (values.size() > 1) {
builder.getVerticesByIndexedProperty(entry.getKey(),
obj.castValueAccordingToSchema(entry.getKey(), values));
} else {
builder.getVerticesByIndexedProperty(entry.getKey(),
obj.castValueAccordingToSchema(entry.getKey(), values.get(0)));
}
builders[i] = builder;
i++;
}
queryBuilder.where(builders);
}
/**
* @{inheritDoc}
*/
@Override
public void processNamespace(Introspector obj) {
}
/**
* @{inheritDoc}
*/
@Override
public String getCloudRegionTransform() {
return "add";
}
/**
* @{inheritDoc}
*/
@Override
public boolean useOriginalLoader() {
return false;
}
}
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