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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.introspection.sideeffect;
import java.io.UnsupportedEncodingException;
import java.net.URISyntaxException;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.openecomp.aai.db.props.AAIProperties;
import org.openecomp.aai.exceptions.AAIException;
import org.openecomp.aai.introspection.Introspector;
import org.openecomp.aai.introspection.Loader;
import org.openecomp.aai.introspection.LoaderFactory;
import org.openecomp.aai.introspection.ModelType;
import org.openecomp.aai.introspection.sideeffect.exceptions.AAIMissingRequiredPropertyException;
import org.openecomp.aai.schema.enums.PropertyMetadata;
import org.openecomp.aai.serialization.db.DBSerializer;
import org.openecomp.aai.serialization.engines.TransactionalGraphEngine;
public abstract class SideEffect {
protected static final Pattern template = Pattern.compile("\\{(.*?)\\}");
protected final Introspector obj;
protected final TransactionalGraphEngine dbEngine;
protected final DBSerializer serializer;
protected final Loader latestLoader = LoaderFactory.createLoaderForVersion(ModelType.MOXY, AAIProperties.LATEST);
protected final Vertex self;
public SideEffect (Introspector obj, Vertex self, TransactionalGraphEngine dbEngine, DBSerializer serializer) {
this.obj = obj;
this.dbEngine = dbEngine;
this.serializer = serializer;
this.self = self;
}
protected void execute() throws UnsupportedEncodingException, URISyntaxException, AAIException {
final Map<String, String> properties = this.findPopertiesWithMetadata(obj, this.getPropertyMetadata());
for (Entry<String, String> entry : properties.entrySet()) {
Optional<String> populatedUri = this.replaceTemplates(obj, entry.getValue());
Optional<String> completeUri = this.resolveRelativePath(populatedUri);
this.processURI(completeUri, entry);
}
}
protected Map<String, String> findPopertiesWithMetadata(Introspector obj, PropertyMetadata metadata) {
final Map<String, String> result = new HashMap<>();
for (String prop : obj.getProperties()) {
final Map<PropertyMetadata, String> map = obj.getPropertyMetadata(prop);
if (map.containsKey(metadata)) {
result.put(prop, map.get(metadata));
}
}
return result;
}
protected Map<String, String> findProperties(Introspector obj, String uriString) throws AAIMissingRequiredPropertyException {
final Map<String, String> result = new HashMap<>();
final Set<String> missing = new LinkedHashSet<>();
Matcher m = template.matcher(uriString);
int properties = 0;
while (m.find()) {
String propName = m.group(1);
String value = obj.getValue(propName);
properties++;
if (value != null) {
result.put(propName, value);
} else {
if (replaceWithWildcard()) {
result.put(propName, "*");
}
missing.add(propName);
}
}
if (!missing.isEmpty() && (properties != missing.size())) {
throw new AAIMissingRequiredPropertyException("Cannot complete " + this.getPropertyMetadata().toString() + " uri. Missing properties " + missing);
}
return result;
}
private Optional<String> replaceTemplates(Introspector obj, String uriString) throws AAIMissingRequiredPropertyException {
String result = uriString;
final Map<String, String> propMap = this.findProperties(obj, uriString);
if (propMap.isEmpty()) {
return Optional.empty();
}
for (Entry<String, String> entry : propMap.entrySet()) {
result = result.replaceAll("\\{" + entry.getKey() + "\\}", entry.getValue());
}
//drop out wildcards if they exist
result = result.replaceFirst("/[^/]+?(?:/\\*)+", "");
return Optional.of(result);
}
private Optional<String> resolveRelativePath(Optional<String> populatedUri) throws UnsupportedEncodingException {
if (!populatedUri.isPresent()) {
return Optional.empty();
} else {
return Optional.of(populatedUri.get().replaceFirst("\\./", this.serializer.getURIForVertex(self) + "/"));
}
}
protected abstract boolean replaceWithWildcard();
protected abstract PropertyMetadata getPropertyMetadata();
protected abstract void processURI(Optional<String> completeUri, Entry<String, String> entry) throws URISyntaxException, UnsupportedEncodingException, AAIException;
}
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