2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.onap.appc.adapter.iaas.impl;
27 import java.io.IOException;
28 import java.util.HashMap;
30 import java.util.Properties;
31 import org.onap.appc.Constants;
32 import org.onap.appc.configuration.Configuration;
33 import org.onap.appc.configuration.ConfigurationFactory;
34 import org.onap.appc.i18n.Msg;
35 import org.onap.appc.pool.Allocator;
36 import org.onap.appc.pool.Destructor;
37 import org.onap.appc.pool.Pool;
38 import org.onap.appc.pool.PoolSpecificationException;
39 import com.att.cdp.exceptions.ContextConnectionException;
40 import com.att.cdp.exceptions.ZoneException;
41 import com.att.cdp.zones.Context;
42 import com.att.cdp.zones.ContextFactory;
43 import com.att.cdp.zones.Provider;
44 import com.att.eelf.configuration.EELFLogger;
45 import com.att.eelf.configuration.EELFManager;
46 // import com.sun.jersey.api.client.ClientHandlerException;
49 * This class maintains a cache of tenants within a specific provider.
51 * Providers may be multi-tenant, such as OpenStack, where the available services and resources vary from one tenant to
52 * another. Therefore, the provider cache maintains a cache of tenants and the service catalogs for each, as well as the
53 * credentials used to access the tenants, and a pool of Context objects for each tenant. The context pool allows use of
54 * the CDP abstraction layer to access the services of the provider within the specific tenant.
57 public class TenantCache implements Allocator<Context>, Destructor<Context> {
59 public static final String POOL_PROVIDER_NAME = "pool.provider.name";
60 public static final String POOL_TENANT_NAME = "pool.tenant.name";
61 // public static final String CLIENT_CONNECTOR_CLASS =
62 // "com.woorea.openstack.connector.JerseyConnector";
63 public static final String CLIENT_CONNECTOR_CLASS = "com.woorea.openstack.connector.JaxRs20Connector";
65 * The domain to use to authenticate
67 private String domain;
70 * The provider we are part of
72 private ProviderCache provider;
75 * The password used to authenticate
77 private String password;
80 * The context pools by region used to access this tenant
82 private Map<String /* region */, Pool<Context>> pools = new HashMap<>();
87 private String tenantId;
92 private String tenantName;
95 * The user id used to authenticate
97 private String userid;
100 * The configuration of this adapter
102 private Configuration configuration;
105 * The service catalog for this provider
107 private ServiceCatalog catalog;
110 * Set to true when the cache has been initialized
112 private boolean initialized;
117 private EELFLogger logger;
120 * Construct the cache of tenants for the specified provider
122 * @param provider The provider
124 public TenantCache(ProviderCache provider) {
125 configuration = ConfigurationFactory.getConfiguration();
126 logger = EELFManager.getInstance().getLogger(getClass());
127 this.provider = provider;
128 configuration = ConfigurationFactory.getConfiguration();
132 * @return True when the cache has been initialized. A tenant cache is initialized when the service catalog for the
133 * tenant on the specified provider has been loaded and processed.
135 public boolean isInitialized() {
140 * Initializes the tenant cache.
142 * This method authenticates to the provider and obtains the service catalog. For the service catalog we can
143 * determine all supported regions for this provider, as well as all published services and their endpoints. We will
144 * cache and maintain a copy of the service catalog for later queries.
147 * Once the catalog has been obtained, we create a context pool for each region defined. The context allows access
148 * to services of a single region only, so we need a separate context by region. It is possible to operate on
149 * resources that span regions, but to do so will require acquiring a context for each region of interest.
152 * The context pool maintains the reusable context objects and allocates them as needed. This class is registered as
153 * the allocator and destructor for the pool, so that we can create a new context when needed, and close it when no
157 public void initialize() {
158 logger.debug("Initializing TenantCache");
160 int min = configuration.getIntegerProperty(Constants.PROPERTY_MIN_POOL_SIZE);
161 int max = configuration.getIntegerProperty(Constants.PROPERTY_MAX_POOL_SIZE);
162 int delay = configuration.getIntegerProperty(Constants.PROPERTY_RETRY_DELAY);
163 int limit = configuration.getIntegerProperty(Constants.PROPERTY_RETRY_LIMIT);
165 String url = provider.getIdentityURL();
166 String tenant = tenantName == null ? tenantId : tenantName;
167 Properties properties = configuration.getProperties();
168 catalog = ServiceCatalogFactory.getServiceCatalog(url, tenant, userid, password, domain, properties);
170 if (catalog == null) {
171 logger.error(Msg.IAAS_UNSUPPORTED_IDENTITY_SERVICE, url);
176 while (attempt <= limit) {
179 tenantId = catalog.getProjectId();
180 tenantName = catalog.getProjectName();
182 for (String region : catalog.getRegions()) {
184 Pool<Context> pool = new Pool<>(min, max);
185 pool.setProperty(ContextFactory.PROPERTY_IDENTITY_URL, url);
186 pool.setProperty(ContextFactory.PROPERTY_TENANT, tenantName);
187 pool.setProperty(ContextFactory.PROPERTY_CLIENT_CONNECTOR_CLASS, CLIENT_CONNECTOR_CLASS);
188 pool.setProperty(ContextFactory.PROPERTY_RETRY_DELAY,
189 configuration.getProperty(Constants.PROPERTY_RETRY_DELAY));
190 pool.setProperty(ContextFactory.PROPERTY_RETRY_LIMIT,
191 configuration.getProperty(Constants.PROPERTY_RETRY_LIMIT));
192 pool.setProperty(ContextFactory.PROPERTY_REGION, region);
193 if (properties.getProperty(ContextFactory.PROPERTY_TRUSTED_HOSTS) != null) {
194 pool.setProperty(ContextFactory.PROPERTY_TRUSTED_HOSTS,
195 properties.getProperty(ContextFactory.PROPERTY_TRUSTED_HOSTS));
197 pool.setAllocator(this);
198 pool.setDestructor(this);
199 pools.put(region, pool);
200 logger.debug(String.format("Put pool for region %s", region));
201 } catch (PoolSpecificationException e) {
202 logger.error("Error creating pool", e);
208 } catch (ContextConnectionException e) {
210 if (attempt <= limit) {
211 logger.error(Msg.CONNECTION_FAILED_RETRY, provider.getProviderName(), url, tenantName, tenantId,
212 e.getMessage(), Integer.toString(delay), Integer.toString(attempt),
213 Integer.toString(limit));
216 Thread.sleep(delay * 1000L);
217 } catch (InterruptedException ie) {
221 } catch (ZoneException e) {
222 logger.error(e.getMessage());
228 logger.error(Msg.CONNECTION_FAILED, provider.getProviderName(), url);
233 * This method accepts a fully qualified compute node URL and uses that to determine which region of the provider
234 * hosts that compute node.
236 * @param url The parsed URL of the compute node
237 * @return The region name, or null if no region of this tenant hosts that compute node.
239 public String determineRegion(VMURL url) {
240 logger.debug(String.format("Attempting to determine VM region for %s", url));
241 String region = catalog.getVMRegion(url);
242 logger.debug(String.format("Region for %s is %s", url, region));
247 * @return the value of the domain
249 public String getDomain() {
254 * @param domain the value for domain
256 public void setDomain(String domain) {
257 this.domain = domain;
261 * @return the value of provider
263 public ProviderCache getProvider() {
268 * @param provider the value for provider
270 public void setProvider(ProviderCache provider) {
271 this.provider = provider;
275 * @return the value of password
277 public String getPassword() {
282 * @param password the value for password
284 public void setPassword(String password) {
285 this.password = password;
289 * @return the value of tenantId
291 public String getTenantId() {
296 * @param tenantId the value for tenantId
298 public void setTenantId(String tenantId) {
299 this.tenantId = tenantId;
303 * @return the value of tenantName
305 public String getTenantName() {
310 * @param tenantName the value for tenantName
312 public void setTenantName(String tenantName) {
313 this.tenantName = tenantName;
317 * @return the value of userid
319 public String getUserid() {
324 * @param userid the value for userid
326 public void setUserid(String userid) {
327 this.userid = userid;
331 * @return the value of pools
333 public Map<String, Pool<Context>> getPools() {
338 * @see org.onap.appc.pool.Allocator#allocate(org.onap.appc.pool.Pool)
340 @SuppressWarnings("unchecked")
342 public Context allocate(Pool<Context> pool) {
343 logger.debug("Allocationg context for pool");
344 Class<? extends Provider> providerClass;
346 providerClass = (Class<? extends Provider>) Class.forName("com.att.cdp.openstack.OpenStackProvider");
347 // String providerType = provider.getProviderType();
349 // Context context = ContextFactory.getContext(providerType, pool.getProperties());
350 Context context = ContextFactory.getContext(providerClass, pool.getProperties());
351 context.login(userid, password);
353 } catch (IllegalStateException | IllegalArgumentException | ZoneException | ClassNotFoundException e) {
354 logger.debug("Failed to allocate context for pool", e);
361 * @see org.onap.appc.pool.Destructor#destroy(java.lang.Object, org.onap.appc.pool.Pool)
364 public void destroy(Context context, Pool<Context> pool) {
367 } catch (IOException e) {
373 * @return the service catalog for this provider
375 public ServiceCatalog getServiceCatalog() {