diff options
Diffstat (limited to 'graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/aai/entities/uri/HttpLookupUri.java')
-rw-r--r-- | graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/aai/entities/uri/HttpLookupUri.java | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/aai/entities/uri/HttpLookupUri.java b/graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/aai/entities/uri/HttpLookupUri.java new file mode 100644 index 0000000000..c39eb50dc2 --- /dev/null +++ b/graph-inventory/aai-client/src/main/java/org/onap/aaiclient/client/aai/entities/uri/HttpLookupUri.java @@ -0,0 +1,174 @@ +/*- + * ============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.aaiclient.client.aai.entities.uri; + +import java.io.IOException; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.net.URI; +import java.util.Map; +import java.util.Optional; +import javax.ws.rs.BadRequestException; +import javax.ws.rs.NotFoundException; +import javax.ws.rs.core.UriBuilder; +import org.onap.aaiclient.client.aai.AAIObjectType; +import org.onap.aaiclient.client.aai.AAIResourcesClient; +import org.onap.aaiclient.client.aai.entities.Results; +import org.onap.aaiclient.client.graphinventory.Format; +import org.onap.aaiclient.client.graphinventory.entities.Pathed; +import org.onap.aaiclient.client.graphinventory.entities.uri.HttpAwareUri; +import org.onap.aaiclient.client.graphinventory.exceptions.GraphInventoryPayloadException; +import org.onap.aaiclient.client.graphinventory.exceptions.GraphInventoryUriComputationException; +import org.onap.aaiclient.client.graphinventory.exceptions.GraphInventoryUriNotFoundException; +import org.onap.aaiclient.client.graphinventory.exceptions.IncorrectNumberOfUriKeys; +import com.fasterxml.jackson.core.type.TypeReference; +import com.fasterxml.jackson.databind.ObjectMapper; + +public abstract class HttpLookupUri extends AAISimpleUri implements HttpAwareUri { + + private transient Optional<String> cachedValue = Optional.empty(); + private final AAIObjectType aaiType; + + protected HttpLookupUri(AAIObjectType type, Object... values) { + super(type, values); + this.aaiType = type; + } + + protected HttpLookupUri(AAIObjectType type, UriBuilder builder, Optional<String> cachedValue, Object... values) { + super(type, builder, values); + this.cachedValue = cachedValue; + this.aaiType = type; + } + + protected String getObjectById(Object id) + throws GraphInventoryUriNotFoundException, GraphInventoryPayloadException { + if (!this.getCachedValue().isPresent()) { + AAIResourceUri serviceInstanceUri = AAIUriFactory.createNodesUri(aaiType, id).format(Format.PATHED); + String resultJson; + try { + resultJson = this.getResourcesClient().get(serviceInstanceUri, NotFoundException.class).getJson(); + } catch (BadRequestException e) { + throw new GraphInventoryUriNotFoundException( + aaiType.typeName() + " " + id + " not found at: " + serviceInstanceUri.build()); + + } + try { + cachedValue = extractRelatedLink(resultJson); + if (!cachedValue.isPresent()) { + throw new GraphInventoryUriNotFoundException( + aaiType.typeName() + " " + id + " not found at: " + serviceInstanceUri.build()); + } + } catch (IOException e) { + throw new GraphInventoryPayloadException("could not map payload: " + resultJson, e); + } + } + return cachedValue.get(); + } + + protected Optional<String> extractRelatedLink(String jsonString) throws IOException { + Optional<String> result; + ObjectMapper mapper = new ObjectMapper(); + + Results<Pathed> results = mapper.readValue(jsonString, new TypeReference<Results<Pathed>>() {}); + if (results.getResult().size() == 1) { + String uriString = results.getResult().get(0).getResourceLink(); + 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 = getObjectById(this.values[0]); + Map<String, String> map = super.getURIKeys(uri); + this.values = map.values().toArray(values); + return super.build(values); + } + } catch (GraphInventoryUriNotFoundException | GraphInventoryPayloadException e) { + throw new GraphInventoryUriComputationException(e); + } + return super.build(); + } + + @Override + public URI locateAndBuild() { + try { + if (this.values.length == 1) { + String uri = getObjectById(this.values[0]); + Map<String, String> map = super.getURIKeys(uri); + this.values = map.values().toArray(values); + return super.build(values); + } + } catch (GraphInventoryUriNotFoundException | GraphInventoryPayloadException e) { + throw new GraphInventoryUriComputationException(e); + } + return super.build(); + } + + @Override + public abstract HttpLookupUri clone(); + + @Override + public void validateValuesSize(String template, Object... values) { + try { + super.validateValuesSize(template, values); + } catch (IncorrectNumberOfUriKeys e) { + if (values.length == 1) { + // Special case where we perform an http look up + } else { + throw e; + } + } + } + + public AAIResourcesClient getResourcesClient() { + return new AAIResourcesClient(); + } + + private void writeObject(ObjectOutputStream oos) throws IOException { + + oos.writeUTF(this.cachedValue.orElse("")); + } + + private void readObject(ObjectInputStream ois) throws IOException { + + String value = ois.readUTF(); + if ("".equals(value)) { + this.cachedValue = Optional.empty(); + } else { + this.cachedValue = Optional.ofNullable(value); + } + + } +} |