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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.aaiclient.client.aai;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import javax.ws.rs.core.GenericType;
import javax.ws.rs.core.Response;
import org.onap.aai.domain.yang.Relationship;
import org.onap.so.client.RestClient;
import org.onap.aaiclient.client.aai.entities.AAIEdgeLabel;
import org.onap.aaiclient.client.aai.entities.AAIError;
import org.onap.aaiclient.client.aai.entities.bulkprocess.OperationBody;
import org.onap.aaiclient.client.aai.entities.bulkprocess.Transaction;
import org.onap.aaiclient.client.aai.entities.bulkprocess.Transactions;
import org.onap.aaiclient.client.aai.entities.uri.AAIBaseResourceUri;
import org.onap.aaiclient.client.aai.entities.uri.AAIResourceUri;
import org.onap.aaiclient.client.aai.entities.uri.AAIUriFactory;
import org.onap.aaiclient.client.graphinventory.GraphInventoryPatchConverter;
import org.onap.aaiclient.client.graphinventory.GraphInventoryTransactionClient;
import org.onap.aaiclient.client.graphinventory.exceptions.BulkProcessFailed;
import org.onap.so.jsonpath.JsonPathUtil;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.google.common.base.Joiner;
public class AAITransactionalClient extends
GraphInventoryTransactionClient<AAITransactionalClient, AAIBaseResourceUri<?, ?>, AAIResourceUri, AAIEdgeLabel> {
private final Transactions transactions;
private Transaction currentTransaction;
private AAIResourcesClient resourcesClient;
private AAIClient aaiClient;
protected AAITransactionalClient(AAIResourcesClient resourcesClient, AAIClient aaiClient) {
super();
this.resourcesClient = resourcesClient;
this.aaiClient = aaiClient;
this.transactions = new Transactions();
startTransaction();
}
private void startTransaction() {
Transaction transaction = new Transaction();
transactions.getTransactions().add(transaction);
currentTransaction = transaction;
}
/*
* (non-Javadoc)
*
* @see org.onap.aaiclient.client.aai.GraphInventoryTransactionalClient#beginNewTransaction()
*/
public AAITransactionalClient beginNewTransaction() {
startTransaction();
return this;
}
/*
* (non-Javadoc)
*
* @see org.onap.aaiclient.client.aai.GraphInventoryTransactionalClient#execute()
*/
@Override
public void execute() throws BulkProcessFailed {
try {
if (!this.transactions.getTransactions().isEmpty()) {
RestClient client = aaiClient.createClient(AAIUriFactory.createResourceUri(AAIObjectType.BULK_PROCESS));
Response response = client.put(this.transactions);
if (response.hasEntity()) {
final Optional<String> errorMessage = this.locateErrorMessages(response.readEntity(String.class));
if (errorMessage.isPresent()) {
throw new BulkProcessFailed(
"One or more transactions failed in A&AI. Check logs for payloads.\nMessages:\n"
+ errorMessage.get());
}
} else {
throw new BulkProcessFailed(
"Transactions acccepted by A&AI, but there was no response. Unsure of result.");
}
}
} finally {
this.transactions.getTransactions().clear();
this.currentTransaction = null;
this.actionCount = 0;
}
}
@Override
public void execute(boolean dryRun) throws BulkProcessFailed {
final ObjectMapper mapper = new ObjectMapper();
if (dryRun) {
try {
if (logger.isDebugEnabled()) {
logger.debug("Would execute: {}", mapper.writeValueAsString(this.transactions));
}
} catch (JsonProcessingException e) {
logger.debug("Could not format request to JSON", e);
}
} else {
this.execute();
}
}
protected Optional<String> locateErrorMessages(String response) {
final List<String> errorMessages = new ArrayList<>();
final List<String> results = JsonPathUtil.getInstance().locateResultList(response, "$..body");
final ObjectMapper mapper = new ObjectMapper();
if (!results.isEmpty()) {
List<Map<String, Object>> parsed = new ArrayList<>();
try {
for (String result : results) {
parsed.add(mapper.readValue(result, new TypeReference<Map<String, Object>>() {}));
}
} catch (IOException e) {
logger.error("could not map json", e);
}
for (Map<String, Object> map : parsed) {
for (Entry<String, Object> entry : map.entrySet()) {
if (!entry.getKey().matches("2\\d\\d")) {
AAIError error;
try {
error = mapper.readValue(entry.getValue().toString(), AAIError.class);
} catch (IOException e) {
logger.error("could not parse error object from A&AI", e);
error = new AAIError();
}
AAIErrorFormatter formatter = new AAIErrorFormatter(error);
String outputMessage = formatter.getMessage();
logger.error("part of a bulk action failed in A&AI: " + entry.getValue());
errorMessages.add(outputMessage);
}
}
}
}
if (!errorMessages.isEmpty()) {
return Optional.of(Joiner.on("\n").join(errorMessages));
} else {
return Optional.empty();
}
}
private Relationship buildRelationship(AAIResourceUri uri) {
return buildRelationship(uri, Optional.empty());
}
private Relationship buildRelationship(AAIResourceUri uri, AAIEdgeLabel label) {
return buildRelationship(uri, Optional.of(label));
}
private Relationship buildRelationship(AAIResourceUri uri, Optional<AAIEdgeLabel> label) {
final Relationship result = new Relationship();
result.setRelatedLink(uri.build().toString());
if (label.isPresent()) {
result.setRelationshipLabel(label.toString());
}
return result;
}
protected Transactions getTransactions() {
return this.transactions;
}
@Override
protected void put(String uri, Object body) {
currentTransaction.getPut().add(new OperationBody().withUri(uri).withBody(body));
}
@Override
protected void delete(String uri) {
currentTransaction.getDelete().add(new OperationBody().withUri(uri).withBody(null));
}
@Override
protected void delete(String uri, Object obj) {
currentTransaction.getDelete().add(new OperationBody().withUri(uri).withBody(obj));
}
@Override
protected void patch(String uri, Object body) {
currentTransaction.getPatch().add(new OperationBody().withUri(uri).withBody(body));
}
@Override
protected <T> Optional<T> get(GenericType<T> genericType, AAIBaseResourceUri<?, ?> clone) {
return resourcesClient.get(genericType, clone);
}
@Override
protected boolean exists(AAIBaseResourceUri<?, ?> uri) {
return resourcesClient.exists(uri);
}
@Override
protected String getGraphDBName() {
return aaiClient.getGraphDBName();
}
@Override
protected GraphInventoryPatchConverter getPatchConverter() {
return this.patchConverter;
}
}
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