1 files changed, 129 insertions, 0 deletions
diff --git a/aai-core/src/main/java/org/onap/aai/introspection/sideeffect/SideEffect.java b/aai-core/src/main/java/org/onap/aai/introspection/sideeffect/SideEffect.java
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+++ b/aai-core/src/main/java/org/onap/aai/introspection/sideeffect/SideEffect.java
@@ -0,0 +1,129 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.introspection.sideeffect;
+
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.onap.aai.db.props.AAIProperties;
+import org.onap.aai.exceptions.AAIException;
+import org.onap.aai.introspection.Introspector;
+import org.onap.aai.introspection.Loader;
+import org.onap.aai.introspection.LoaderFactory;
+import org.onap.aai.introspection.ModelType;
+import org.onap.aai.introspection.sideeffect.exceptions.AAIMissingRequiredPropertyException;
+import org.onap.aai.schema.enums.PropertyMetadata;
+import org.onap.aai.serialization.db.DBSerializer;
+import org.onap.aai.serialization.engines.TransactionalGraphEngine;
+
+import java.io.UnsupportedEncodingException;
+import java.net.URISyntaxException;
+import java.util.*;
+import java.util.Map.Entry;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+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;
+}