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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* 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.onap.so.client.aai.entities.uri;
import java.io.IOException;
import java.net.URI;
import java.util.Collections;
import java.util.Map;
import java.util.Optional;
import javax.ws.rs.BadRequestException;
import javax.ws.rs.core.UriBuilder;
import org.onap.so.client.aai.AAIObjectType;
import org.onap.so.client.aai.AAIQueryClient;
import org.onap.so.client.graphinventory.Format;
import org.onap.so.client.aai.entities.CustomQuery;
import org.onap.so.client.aai.entities.Results;
import org.onap.so.client.graphinventory.entities.uri.SimpleUri;
import org.onap.so.client.graphinventory.exceptions.GraphInventoryPayloadException;
import org.onap.so.client.graphinventory.exceptions.GraphInventoryUriComputationException;
import org.onap.so.client.graphinventory.exceptions.GraphInventoryUriNotFoundException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
public class ServiceInstanceUri extends AAISimpleUri {
private Optional<String> cachedValue = Optional.empty();
protected ServiceInstanceUri(Object... values) {
super(AAIObjectType.SERVICE_INSTANCE, values);
}
protected ServiceInstanceUri(UriBuilder builder, Optional<String> cachedValue, Object... values) {
super(AAIObjectType.SERVICE_INSTANCE, builder, values);
this.cachedValue = cachedValue;
}
protected String getSerivceInstance(Object id) throws GraphInventoryUriNotFoundException, GraphInventoryPayloadException {
if (!this.getCachedValue().isPresent()) {
AAIResourceUri serviceInstanceUri = AAIUriFactory.createNodesUri(AAIObjectType.SERVICE_INSTANCE, id);
CustomQuery query = new CustomQuery(Collections.singletonList(serviceInstanceUri));
String resultJson;
try {
resultJson = this.getQueryClient().query(Format.PATHED, query);
} catch (BadRequestException e) {
throw new GraphInventoryUriNotFoundException("Service instance " + id + " not found at: " + serviceInstanceUri.build());
}
try {
cachedValue = extractRelatedLink(resultJson);
if (!cachedValue.isPresent()) {
throw new GraphInventoryUriNotFoundException("Service instance " + id + " not found at: " + serviceInstanceUri.build());
}
} catch (IOException e) {
throw new GraphInventoryPayloadException("could not map payload: " + resultJson, e);
}
}
Optional<String> cachedValueOpt = this.getCachedValue();
return cachedValueOpt.isPresent() ? cachedValueOpt.get() : "";
}
protected Optional<String> extractRelatedLink(String jsonString) throws IOException {
Optional<String> result;
ObjectMapper mapper = new ObjectMapper();
Results<Map<String, String>> results = mapper.readValue(jsonString, new TypeReference<Results<Map<String, String>>>(){});
if (results.getResult().size() == 1) {
String uriString = results.getResult().get(0).get("resource-link");
URI uri = UriBuilder.fromUri(uriString).build();
String rawPath = uri.getRawPath();
result = Optional.of(rawPath.replaceAll("/aai/v\\d+", ""));
} else if (results.getResult().isEmpty()) {
result = Optional.empty();
} else {
throw new IllegalStateException("more than one result returned");
}
return result;
}
protected Optional<String> getCachedValue() {
return this.cachedValue;
}
@Override
public URI build() {
try {
if (this.values.length == 1) {
String uri = getSerivceInstance(this.values[0]);
Map<String, String> map = getURIKeys(uri);
return super.build(map.values().toArray(values));
}
} catch (GraphInventoryUriNotFoundException | GraphInventoryPayloadException e) {
throw new GraphInventoryUriComputationException(e);
}
return super.build();
}
@Override
public ServiceInstanceUri clone() {
return new ServiceInstanceUri(this.internalURI.clone(), this.getCachedValue(), values);
}
protected AAIQueryClient getQueryClient() {
AAIResourceUri uri = AAIUriFactory.createNodesUri(AAIObjectType.ALLOTTED_RESOURCE, "").clone();
return new AAIQueryClient();
}
}
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