Added open AI stream sample.

CallAutomation_AzOpenAI_Voice/README.md

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+|page_type| languages                             |products
+|---|---------------------------------------|---|
+|sample| <table><tr><td>Java</tr></td></table> |<table><tr><td>azure</td><td>azure-communication-services</td></tr></table>|
+
+# Call Automation - Quick Start Sample
+
+This sample application shows how the Azure Communication Services  - Call Automation SDK can be used with Azure OpenAI Service to enable intelligent conversational agents. 
+It answers an inbound call, does a speech recognition with the recognize API and Cognitive Services, uses OpenAi Services with the input speech and responds to the caller through Cognitive Services' Text to Speech. 
+This sample application configured for accepting input speech until the caller terminates the call or a long silence is detected.
+This sample application is also capable of making multiple concurrent inbound calls. The application is a web-based application built on Java's Spring framework.
+
+
+## Prerequisites
+
+- An Azure account with an active subscription. [Create an account for free](https://azure.microsoft.com/free/?WT.mc_id=A261C142F). 
+- A deployed Communication Services resource. [Create a Communication Services resource](https://docs.microsoft.com/azure/communication-services/quickstarts/create-communication-resource).
+- A [phone number](https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/telephony/get-phone-number) in your Azure Communication Services resource that can make outbound calls. NB: phone numbers are not available in free subscriptions.
+- [Java Development Kit (JDK) Microsoft.OpenJDK.17](https://learn.microsoft.com/en-us/java/openjdk/download)
+- [Apache Maven](https://maven.apache.org/download.cgi)
+- Create and host a Azure Dev Tunnel. Instructions [here](https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/get-started)
+- Create an Azure Cognitive Services resource. For details, see Create an Azure Cognitive Services Resource.
+- An Azure OpenAI Resource and Deployed Model. See https://learn.microsoft.com/en-us/azure/ai-services/openai/how-to/create-resource?pivots=web-portal.
+
+## Before running the sample for the first time
+
+- Open the application.yml file in the resources folder to configure the following settings
+
+    - `connectionstring`: Azure Communication Service resource's connection string.
+    - `basecallbackuri`: Base url of the app. For local development use dev tunnel url.
+    - `cognitiveServicesUrl`: The Cognitive Services endpoint
+    - `azureOpenAiServiceKey`: Open AI's Service Key
+    - `azureOpenAiServiceEndpoint`: Open AI's Service Endpoint
+    - `openAiModelName`: Open AI's Model name
+    - `agentPhoneNumber`: Agent Phone Number
+
+
+### Setup and host your Azure DevTunnel
+
+[Azure DevTunnels](https://learn.microsoft.com/en-us/azure/developer/dev-tunnels/overview) is an Azure service that enables you to share local web services hosted on the internet. Use the commands below to connect your local development environment to the public internet. This creates a tunnel with a persistent endpoint URL and which allows anonymous access. We will then use this endpoint to notify your application of calling events from the ACS Call Automation service.
+
+```bash
+devtunnel create --allow-anonymous
+devtunnel port create -p 8080
+devtunnel host
+```
+
+### Run the application
+
+- Navigate to the directory containing the pom.xml file and use the following mvn commands:
+    - Compile the application: mvn compile
+    - Build the package: mvn package
+    - Execute the app: mvn exec:java
+- Access the Swagger UI at http://localhost:8080/swagger-ui.html
+    - Try the GET /outboundCall to run the Sample Application

CallAutomation_AzOpenAI_Voice/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>3.0.6</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+
+    <groupId>com.communication.callautomation</groupId>
+    <artifactId>CallAutomation_AzOpenAI_Voice</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <name>CallAutomation_AzOpenAI_Voice</name>
+    <description>CallAutomation Sample application for OpenAI usage</description>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <lombok.version>1.18.26</lombok.version>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+            <exclusions>
+            <exclusion>
+                <groupId>com.vaadin.external.google</groupId>
+                <artifactId>android-json</artifactId>
+            </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.13.2</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-core</artifactId>
+            <version>1.42.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-identity</artifactId>
+            <version>1.10.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-communication-identity</artifactId>
+            <version>1.4.8</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>com.azure</groupId>
+                    <artifactId>azure-communication-common</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-communication-callautomation</artifactId>
+            <version>1.3.0-beta.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-messaging-eventgrid</artifactId>
+            <version>4.17.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-communication-common</artifactId>
+            <version>2.0.0-beta.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <scope>provided</scope>
+            <version>${lombok.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-configuration-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-autoconfigure-processor</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springdoc</groupId>
+            <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+            <version>2.0.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.json</groupId>
+            <artifactId>json</artifactId>
+            <version>20230618</version>
+        </dependency>
+        <dependency>
+            <groupId>com.azure</groupId>
+            <artifactId>azure-ai-openai</artifactId>
+            <version>1.0.0-beta.3</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <pluginManagement>
+            <plugins>
+                <plugin>
+                    <artifactId>maven-clean-plugin</artifactId>
+                    <version>3.2.0</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-resources-plugin</artifactId>
+                    <version>3.3.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-compiler-plugin</artifactId>
+                    <version>3.11.0</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-surefire-plugin</artifactId>
+                    <version>3.1.0</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-jar-plugin</artifactId>
+                    <version>3.3.0</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-deploy-plugin</artifactId>
+                    <version>3.1.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-site-plugin</artifactId>
+                    <version>3.12.1</version>
+                </plugin>
+                <plugin>
+                    <artifactId>maven-project-info-reports-plugin</artifactId>
+                    <version>3.4.3</version>
+                </plugin>
+                <plugin>
+                    <groupId>org.codehaus.mojo</groupId>
+                    <artifactId>exec-maven-plugin</artifactId>
+                    <version>3.1.0</version>
+                    <executions>
+                        <execution>
+                            <goals>
+                                <goal>java</goal>
+                            </goals>
+                        </execution>
+                    </executions>
+                    <configuration>
+                        <mainClass>com.communication.callautomation.Main</mainClass>
+                    </configuration>
+                </plugin>
+            </plugins>
+        </pluginManagement>
+    </build>
+</project>

CallAutomation_AzOpenAI_Voice/src/main/java/com/communication/callautomation/AppConfig.java

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+package com.communication.callautomation;
+
+import lombok.Getter;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.bind.ConstructorBinding;
+
+@ConfigurationProperties(prefix = "acs")
+@Getter
+public class AppConfig {
+    private final String connectionString;
+    private final String basecallbackuri;
+    private final String cognitiveServicesUrl;
+    private final String azureOpenAiServiceKey;
+    private final String azureOpenAiServiceEndpoint;
+    private final String openAiModelName;
+    private final String agentPhoneNumber;
+
+    @ConstructorBinding
+    AppConfig(final String connectionString,
+              final String basecallbackuri,
+              final String cognitiveServicesUrl,
+              final String azureOpenAiServiceKey,
+              final String azureOpenAiServiceEndpoint,
+              final String openAiModelName,
+              final String agentPhoneNumber) {
+        this.connectionString = connectionString;
+        this.basecallbackuri = basecallbackuri;
+        this.cognitiveServicesUrl = cognitiveServicesUrl;
+        this.azureOpenAiServiceKey = azureOpenAiServiceKey;
+        this.azureOpenAiServiceEndpoint = azureOpenAiServiceEndpoint;
+        this.openAiModelName = openAiModelName;
+        this.agentPhoneNumber = agentPhoneNumber;
+    }
+
+    public String getCallBackUri() {
+        return basecallbackuri + "/api/callback";
+    }
+
+    public String getCognitiveServicesUrl() {
+        return cognitiveServicesUrl;
+    }
+
+    public String getConnectionString() {
+        return connectionString;
+    }
+
+    public String getAzureOpenAiServiceKey() {
+        return azureOpenAiServiceKey;
+    }
+
+    public String getAzureOpenAiServiceEndpoint() {
+        return azureOpenAiServiceEndpoint;
+    }
+}

CallAutomation_AzOpenAI_Voice/src/main/java/com/communication/callautomation/Main.java

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+package com.communication.callautomation;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+
+@SpringBootApplication
+@EnableConfigurationProperties(value = AppConfig.class)
+public class Main {
+    public static void main(String[] args) {
+        SpringApplication.run(Main.class, args);
+    }
+}