1 files changed, 165 insertions, 0 deletions
diff --git a/appc-adapters/appc-iaas-adapter/appc-iaas-adapter-bundle/src/main/java/org/onap/appc/adapter/iaas/impl/ProviderCache.java b/appc-adapters/appc-iaas-adapter/appc-iaas-adapter-bundle/src/main/java/org/onap/appc/adapter/iaas/impl/ProviderCache.java
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+++ b/appc-adapters/appc-iaas-adapter/appc-iaas-adapter-bundle/src/main/java/org/onap/appc/adapter/iaas/impl/ProviderCache.java
@@ -0,0 +1,165 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP : APPC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Copyright (C) 2017 Amdocs
+ * =============================================================================
+ * 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.
+ * 
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.appc.adapter.iaas.impl;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * This class maintains a cache of information by provider, where a provider is identified by both a type and an
+ * identity URL used to connect to that provider.
+ * <p>
+ * Providers may be multi-tenant, such as OpenStack, where the available services and resources vary from one tenant to
+ * another. Therefore, the provider cache maintains a cache of tenants and the service catalogs for each, as well as the
+ * credentials used to access the tenants, and a pool of Context objects for each tenant. The context pool allows use of
+ * the CDP abstraction layer to access the services of the provider within the specific tenant.
+ * </p>
+ */
+public class ProviderCache {
+
+    /**
+     * The type of provider (e.g., OpenStackProvider) used to setup the CDP abstraction layer and load the appropriate
+     * support
+     */
+    private String providerType;
+
+    /**
+     * The URL of the provider's identity service or whatever service is used to login and authenticate to the provider
+     */
+    private String identityURL;
+
+    /**
+     * A string used to identify the provider instance
+     */
+    private String providerName;
+
+    /**
+     * The map of tenant cache objects by tenant id
+     */
+    private Map<String /* tenant id */, TenantCache> tenants = new HashMap<String, TenantCache>();
+
+    /**
+     * @return the value of providerType
+     */
+    public String getProviderType() {
+        return providerType;
+    }
+
+    /**
+     * This method is called to initialize the provider cache, set up the context pools for each of the tenants,
+     * discover all of the regions supported on the provider, and load all of the service catalogs for each provider.
+     */
+    public void initialize() {
+        for (Map.Entry<String, TenantCache> entry : tenants.entrySet()) {
+            entry.getValue().initialize();
+        }
+    }
+
+    /**
+     * @param providerType the value for providerType
+     */
+    public void setProviderType(String providerType) {
+        this.providerType = providerType;
+    }
+
+    /**
+     * @return the value of identityURL
+     */
+    public String getIdentityURL() {
+        return identityURL;
+    }
+
+    /**
+     * @param identityURL the value for identityURL
+     */
+    public void setIdentityURL(String identityURL) {
+        this.identityURL = identityURL;
+    }
+
+    /**
+     * @return the value of providerName
+     */
+    public String getProviderName() {
+        return providerName;
+    }
+
+    /**
+     * @param providerName the value for providerName
+     */
+    public void setProviderName(String providerName) {
+        this.providerName = providerName;
+    }
+
+    /**
+     * @return the value of tenants
+     */
+    public Map<String, TenantCache> getTenants() {
+        return tenants;
+    }
+
+    /**
+     * This method is a helper to return a specific TenantCache
+     * 
+     * @param tenantId
+     * @return
+     */
+    public TenantCache getTenant(String tenantId) {
+        return tenants.get(tenantId);
+    }
+
+    // Previously there was no way to add additional tenants to the tenant cache
+    /**
+     * This method is used to add a tenant to the provider cache
+     * 
+     * @param tenantId
+     * @param UserId
+     * @param password
+     * @return the new initialized TenantCache or null if unsuccessful
+     */
+    public TenantCache addTenant(String tenantId, String tenantName, String userId, String password, String domain) {
+        if (tenantId != null || tenantName != null && userId != null && password != null) {
+            TenantCache tenant = new TenantCache(this);
+            if (tenantId != null) {
+                tenant.setTenantId(tenantId);
+            }
+            if (tenantName != null) {
+                tenant.setTenantName(tenantName);
+            }
+            tenant.setUserid(userId);
+            tenant.setPassword(password);
+            tenant.setDomain(domain);
+
+            if (identityURL != null) {
+                tenant.initialize();
+            }
+
+            if (tenant.isInitialized()) {
+                tenants.put(tenant.getTenantId(), tenant);
+                return tenant;
+            }
+        }
+        return null;
+    }
+}