1 files changed, 202 insertions, 0 deletions
diff --git a/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/dmaap/BluePrintDmaapLibPropertyService.kt b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/dmaap/BluePrintDmaapLibPropertyService.kt
new file mode 100644
index 000000000..e5c9d432f
--- /dev/null
+++ b/ms/blueprintsprocessor/modules/commons/dmaap-lib/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/dmaap/BluePrintDmaapLibPropertyService.kt
@@ -0,0 +1,202 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - CDS
+ * ================================================================================
+ * Copyright (C) 2019 Huawei Technologies Co., Ltd. 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.ccsdk.cds.blueprintsprocessor.dmaap
+
+import com.fasterxml.jackson.databind.JsonNode
+import org.onap.ccsdk.cds.blueprintsprocessor.core.BluePrintPropertiesService
+import org.onap.ccsdk.cds.blueprintsprocessor.dmaap.DmaapLibConstants.Companion.SERVICE_BLUEPRINT_DMAAP_LIB_PROPERTY
+import org.onap.ccsdk.cds.blueprintsprocessor.dmaap.DmaapLibConstants.Companion.TYPE_HTTP_AAF_AUTH
+import org.onap.ccsdk.cds.blueprintsprocessor.dmaap.DmaapLibConstants.Companion.TYPE_HTTP_NO_AUTH
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
+import org.slf4j.LoggerFactory
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.context.annotation.Configuration
+import org.springframework.context.annotation.PropertySource
+import org.springframework.context.annotation.PropertySources
+import org.springframework.core.env.ConfigurableEnvironment
+import org.springframework.core.env.Environment
+import org.springframework.core.io.support.ResourcePropertySource
+import org.springframework.stereotype.Service
+import java.util.Properties
+
+/**
+ * Representation of DMAAP lib property service to load the properties
+ * according to the connection type to the DMAAP server and returning back
+ * the appropriate DMAAP client to send messages DMAAP client.
+ */
+@Service(SERVICE_BLUEPRINT_DMAAP_LIB_PROPERTY)
+@Configuration
+@PropertySources(PropertySource("classpath:event.properties"))
+open class BluePrintDmaapLibPropertyService(private var bluePrintPropertiesService: BluePrintPropertiesService) {
+
+    /**
+     * Static variable for logging.
+     */
+    companion object {
+
+        var log = LoggerFactory.getLogger(
+            BluePrintDmaapLibPropertyService::class.java
+        )!!
+    }
+
+    /**
+     * Environment entity to derive it from the system to load a specific
+     * property file.
+     */
+    @Autowired
+    lateinit var env: Environment
+
+    /**
+     * Returns the DMAAP client by providing the input properties as a JSON
+     * node.
+     */
+    fun blueprintDmaapClientService(jsonNode: JsonNode):
+        BluePrintDmaapClientService {
+            val dmaapProps = dmaapClientProperties(jsonNode)
+            return blueprintDmaapClientService(dmaapProps)
+        }
+
+    /**
+     * Returns the DMAAP client by providing the input properties as a
+     * selector string.
+     */
+    fun blueprintDmaapClientService(selector: String):
+        BluePrintDmaapClientService {
+            val prefix = "blueprintsprocessor.dmaapclient.$selector"
+            val dmaapProps = dmaapClientProperties(prefix)
+            return blueprintDmaapClientService(dmaapProps)
+        }
+
+    /**
+     * Returns the DMAAP client properties from the type of connection it
+     * requires.
+     */
+    fun dmaapClientProperties(prefix: String): DmaapClientProperties {
+        val type = bluePrintPropertiesService.propertyBeanType(
+            "$prefix.type", String::class.java
+        )
+        val clientProps: DmaapClientProperties
+
+        when (type) {
+            TYPE_HTTP_NO_AUTH -> {
+                clientProps = bluePrintPropertiesService.propertyBeanType(
+                    prefix, HttpNoAuthDmaapClientProperties::class.java
+                )
+                clientProps.props = parseEventProps()
+            }
+
+            TYPE_HTTP_AAF_AUTH -> {
+                clientProps = bluePrintPropertiesService.propertyBeanType(
+                    prefix, AafAuthDmaapClientProperties::class.java
+                )
+                clientProps.props = parseEventProps()
+            }
+
+            else -> {
+                throw BluePrintProcessorException(
+                    "DMAAP adaptor($type) is " +
+                        "not supported"
+                )
+            }
+        }
+        return clientProps
+    }
+
+    /**
+     * Returns the DMAAP client properties from the type of connection it
+     * requires.
+     */
+    fun dmaapClientProperties(jsonNode: JsonNode): DmaapClientProperties {
+        val type = jsonNode.get("type").textValue()
+        val clientProps: DmaapClientProperties
+
+        when (type) {
+            TYPE_HTTP_NO_AUTH -> {
+                clientProps = JacksonUtils.readValue(
+                    jsonNode,
+                    HttpNoAuthDmaapClientProperties::class.java
+                )!!
+                clientProps.props = parseEventProps()
+            }
+
+            TYPE_HTTP_AAF_AUTH -> {
+                clientProps = JacksonUtils.readValue(
+                    jsonNode,
+                    AafAuthDmaapClientProperties::class.java
+                )!!
+                clientProps.props = parseEventProps()
+            }
+
+            else -> {
+                throw BluePrintProcessorException(
+                    "DMAAP adaptor($type) is " +
+                        "not supported"
+                )
+            }
+        }
+        return clientProps
+    }
+
+    /**
+     * Returns DMAAP client service according to the type of client properties.
+     */
+    private fun blueprintDmaapClientService(clientProps: DmaapClientProperties):
+        BluePrintDmaapClientService {
+            when (clientProps) {
+                is HttpNoAuthDmaapClientProperties -> {
+                    return HttpNoAuthDmaapClientService(clientProps)
+                }
+
+                is AafAuthDmaapClientProperties -> {
+                    return AafAuthDmaapClientService(clientProps)
+                }
+
+                else -> {
+                    throw BluePrintProcessorException(
+                        "Unable to get the DMAAP " +
+                            "client"
+                    )
+                }
+            }
+        }
+
+    /**
+     * Parses the event.properties file which contains the default values for
+     * the connection required.
+     */
+    private fun parseEventProps(): Properties {
+        val prodProps = Properties()
+        val proProps = (env as ConfigurableEnvironment).propertySources.get(
+            "class path resource [event.properties]"
+        )
+
+        if (proProps != null) {
+            val entries = (proProps as ResourcePropertySource).source.entries
+            for (e in entries) {
+                prodProps.put(e.key, e.value)
+            }
+        } else {
+            log.error("Unable to load the event.properties file")
+        }
+        return prodProps
+    }
+}