Azure · JianpingChen · Jun 14, 2021 · May 27, 2021 · May 28, 2021 · May 27, 2021
diff --git a/eng/.docsettings.yml b/eng/.docsettings.yml
@@ -124,6 +124,7 @@ known_content_issues:
   - ['sdk/core/README.md', '#3113']
   - ['sdk/core/azure-core-experimental/README.md', '#3113']
   - ['sdk/cognitiveservices/ms-azure-cs-textanalytics/README.md', '#3113']
+  - ['sdk/communication/azure-communication-callingserver/swagger/README.md', '#3113']
   - ['sdk/communication/azure-communication-chat/swagger/README.md', '#3113']
   - ['sdk/communication/azure-communication-sms/swagger/README.md', '#3113']
   - ['sdk/communication/azure-communication-identity/swagger/README.md', '#3113']

diff --git a/eng/code-quality-reports/src/main/resources/checkstyle/checkstyle-suppressions.xml b/eng/code-quality-reports/src/main/resources/checkstyle/checkstyle-suppressions.xml
@@ -598,4 +598,8 @@ the main ServiceBusClientBuilder. -->
   <!-- Fields are set via reflection using JCommander. Setting them to final fields will break it. -->
   <suppress checks="com.azure.tools.checkstyle.checks.EnforceFinalFieldsCheck"
             files="com.azure.messaging.eventhubs.perf[/\\].*Options\.java"/>
+
+  <!-- Avoiding PagedFlux check if already using RetriableDownloadFlux. -->
+  <!-- Issue: https://github.com/Azure/azure-sdk-for-java/issues/22117 -->
+  <suppress checks="com.azure.tools.checkstyle.checks.ServiceClientCheck" files="com.azure.communication.callingserver.CallingServerAsyncClient"/>
 </suppressions>
diff --git a/eng/jacoco-test-coverage/pom.xml b/eng/jacoco-test-coverage/pom.xml
@@ -81,6 +81,11 @@
       <artifactId>azure-communication-phonenumbers</artifactId>
       <version>1.1.0-beta.1</version> <!-- {x-version-update;com.azure:azure-communication-phonenumbers;current} -->
     </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-communication-callingserver</artifactId>
+      <version>1.0.0-beta.1</version> <!-- {x-version-update;com.azure:azure-communication-callingserver;current} -->
+    </dependency>
     <dependency>
       <groupId>com.azure</groupId>
       <artifactId>azure-containers-containerregistry</artifactId>

diff --git a/eng/versioning/version_client.txt b/eng/versioning/version_client.txt
@@ -52,6 +52,7 @@ com.azure:azure-analytics-synapse-spark;1.0.0-beta.3;1.0.0-beta.4
 com.azure:azure-analytics-synapse-managedprivateendpoints;1.0.0-beta.3;1.0.0-beta.4
 com.azure:azure-analytics-synapse-monitoring;1.0.0-beta.3;1.0.0-beta.4
 com.azure:azure-communication-chat;1.0.0;1.1.0-beta.1
+com.azure:azure-communication-callingserver;1.0.0-beta.1;1.0.0-beta.1
 com.azure:azure-communication-common;1.0.2;1.1.0-beta.1
 com.azure:azure-communication-sms;1.0.3;1.1.0-beta.1
 com.azure:azure-communication-identity;1.1.1;1.2.0-beta.1

diff --git a/sdk/communication/azure-communication-callingserver/CHANGELOG.md b/sdk/communication/azure-communication-callingserver/CHANGELOG.md
@@ -0,0 +1,19 @@
+# Release History
+
+## 1.0.0-beta.1 (Unreleased)
+This is the first release of Azure Communication Calling Server SDK. For more information, please see the [README][read_me].
+
+This is a Public Preview version, so breaking changes are possible in subsequent releases as we improve the product. To provide feedback, please submit an issue in our [Azure SDK for .NET GitHub repo](https://github.com/Azure/azure-sdk-for-net/issues).
+
+### Features Added
+- Create outbound call to an Azure Communication Service user or a phone number.
+- Hangup the existing call.
+- Play audio in the call.
+- Outbound APIs for call recording including start, pause, resume and stop.
+- Subscribe to tone and receive tone selections via events.
+- Invite and remove participants from the call.
+
+<!-- LINKS -->
+[read_me]: https://github.com/Azure/azure-sdk-for-java/blob/feature/communication-ServerCalling/sdk/communication/azure-communication-callingserver/README.md
+
+
diff --git a/sdk/communication/azure-communication-callingserver/README.md b/sdk/communication/azure-communication-callingserver/README.md
@@ -0,0 +1,176 @@
+# Azure Communication CallingServer Service client library for Java
+
+This package contains a Java SDK for Azure Communication CallingServer Service.
+
+[Source code][source] | [Package (Maven)][package] | [API reference documentation][api_documentation]
+| [Product documentation][product_docs]
+
+## Getting started
+
+### Prerequisites
+
+- An Azure account with an active subscription. [Create an account for free](https://azure.microsoft.com/free/?WT.mc_id=A261C142F).
+- [Java Development Kit (JDK)](https://docs.microsoft.com/java/azure/jdk/?view=azure-java-stable) version 8 or above.
+- [Apache Maven](https://maven.apache.org/download.cgi).
+- A deployed Communication Services resource. You can use the [Azure Portal](https://docs.microsoft.com/azure/communication-services/quickstarts/create-communication-resource?tabs=windows&pivots=platform-azp) or the [Azure PowerShell](https://docs.microsoft.com/powershell/module/az.communication/new-azcommunicationservice) to set it up.
+
+### Include the package
+
+[//]: # ({x-version-update-start;com.azure:azure-communication-callingserver;current})
+```xml
+<dependency>
+    <groupId>com.azure</groupId>
+    <artifactId>azure-communication-callingserver</artifactId>
+    <version>1.0.0-beta.1</version>
+</dependency>
+```
+[//]: # ({x-version-update-end})
+
+## Key concepts
+
+At a high level the Azure Communication CallingServer API will support two kinds of scenarios:
+
+- In-call app: Contoso server app is a participant in the call.  
+
+- Out-call app: Contoso server app is not a participant in the call - Server app can subscribe to events for calls between specific users or even all users belonging to the ACS azure resource.  
+
+Based on if the Contoso app join a call or not, APIs can be divided into two categories:   
+
+- In-call APIs: Contoso app is one of the participant in a call. It can be applicable for app to person (A2P) or person to app (P2A) case, or multi-party/group calls that server apps joined as a participant to provide audio/prompt.  
+
+- Out-of-call APIs: Contoso app can invoke these set of APIs without joining a call. It is applicable for actions on P2P calls, A2P calls, P2A calls and group calls.  
+
+## Examples
+
+### Authenticate the client
+
+
+You can provide the connection string using the connectionString() function of `CallingServerClientBuilder`. Once you initialized a `CallingServerClient` class, you can do the different server calling operations.
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ReadmeSamples.java#L28-L34 -->
+```java
+// Your connectionString retrieved from your Azure Communication Service
+String connectionString = "endpoint=https://<resource-name>.communication.azure.com/;accesskey=<access-key>";
+
+// Initialize the calling server client
+final CallingServerClientBuilder builder = new CallingServerClientBuilder();
+builder.connectionString(connectionString);
+CallingServerClient callingServerClient = builder.buildClient();
+```
+
+### Create call, Add participant and Hangup a call
+
+#### Create a Call: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ReadmeSamples.java#L46-L66 -->
+```java
+CommunicationIdentifier source = new CommunicationUserIdentifier("<acs-user-identity>");
+CommunicationIdentifier firstCallee = new CommunicationUserIdentifier("<acs-user-identity-1>");
+CommunicationIdentifier secondCallee = new CommunicationUserIdentifier("<acs-user-identity-2>");
+
+CommunicationIdentifier[] targets = new CommunicationIdentifier[] { firstCallee, secondCallee };
+
+String callbackUri = "<callback-uri-for-notification>";
+
+CallModality[] requestedMediaTypes = new CallModality[] { CallModality.AUDIO, CallModality.VIDEO };
+
+EventSubscriptionType[] requestedCallEvents = new EventSubscriptionType[] {
+        EventSubscriptionType.DTMF_RECEIVED,
+        EventSubscriptionType.PARTICIPANTS_UPDATED };
+
+CreateCallOptions createCallOptions = new CreateCallOptions(
+    callbackUri,
+    requestedMediaTypes,
+    requestedCallEvents);
+
+CallConnection callConnection = callingServerClient.createCallConnection(source, targets, createCallOptions);
+```
+
+#### Add a participant to a Call:
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ReadmeSamples.java#L86-L87 -->
+```java
+CommunicationIdentifier thirdCallee = new CommunicationUserIdentifier("<acs-user-identity-3>");
+callConnection.addParticipant(thirdCallee, "ACS User 3", "<string-for-tracing-responses>");
+```
+
+#### Hangup a Call:
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ReadmeSamples.java#L76-L76 -->
+```java
+callConnection.hangup();
+```
+
+### Start, Pause, Resume, Stop and Get a recording
+
+#### Start a Recording: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ConversationClientReadmeSamples.java#L47-L51 -->
+```java
+String serverCallId = "<serverCallId received from starting call>";
+String recordingStateCallbackUri = "<webhook endpoint to which calling service can report status>";
+ServerCall serverCall = callingServerClient.initializeServerCall(serverCallId);
+StartCallRecordingResponse response = serverCall.startRecording(recordingStateCallbackUri);
+String recordingId = response.getRecordingId();
+```
+
+#### Pause a Recording: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ConversationClientReadmeSamples.java#L65-L65 -->
+```java
+serverCall.pauseRecording(recordingId);
+```
+
+#### Resume a Recording: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ConversationClientReadmeSamples.java#L78-L78 -->
+```java
+serverCall.resumeRecording(recordingId);
+```
+
+#### Stop a Recording: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ConversationClientReadmeSamples.java#L91-L91 -->
+```java
+serverCall.stopRecording(recordingId);
+```
+
+#### Get the Recording State: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ConversationClientReadmeSamples.java#L105-L105 -->
+```java
+CallRecordingStateResult callRecordingStateResult = serverCall.getRecordingState(recordingId);
+```
+
+### Play Audio in Call
+
+#### Play Audio: 
+<!-- embedme src/samples/java/com/azure/communication/callingserver/ConversationClientReadmeSamples.java#L122-L127 -->
+```java
+String audioFileUri = "<uri of the file to play>";
+String audioFileId = "<a name to use for caching the audio file>";
+String callbackUri = "<webhook endpoint to which calling service can report status>";
+String context = "<Identifier for correlating responses>";
+PlayAudioResponse playAudioResponse = serverCall.playAudio(audioFileUri, audioFileId, callbackUri, context);
+```
+
+## Troubleshooting
+
+If you recieve a CommunicationErrorException with the messagae: "Action is invalid when call is not in Established state." This usually means the call has ended. This can occur if the participants all leave
+the call, or participants did not accept the call before the call timed out. 
+
+If you fail to start a call because of an HMAC validation error, be sure your access key is correct, and
+that you are passing in a valid conversation id.
+
+## Contributing
+
+This project welcomes contributions and suggestions. Most contributions require you to agree to a [Contributor License Agreement (CLA)][cla] declaring that you have the right to, and actually do, grant us the rights to use your contribution.
+
+When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
+
+This project has adopted the [Microsoft Open Source Code of Conduct][coc]. For more information see the [Code of Conduct FAQ][coc_faq] or contact [opencode@microsoft.com][coc_contact] with any additional questions or comments.
+
+## Next steps
+
+Check out other client libraries for Azure Communication Services
+
+<!-- LINKS -->
+[cla]: https://cla.microsoft.com
+[coc]: https://opensource.microsoft.com/codeofconduct/
+[coc_faq]: https://opensource.microsoft.com/codeofconduct/faq/
+[coc_contact]: mailto:opencode@microsoft.com
+[product_docs]: https://docs.microsoft.com/azure/communication-services/
+[package]: https://search.maven.org/artifact/com.azure/azure-communication-callingserver
+[api_documentation]: https://aka.ms/java-docs
+[source]: https://github.com/Azure/azure-sdk-for-java/tree/feature/communication-ServerCalling/sdk/communication/azure-communication-callingserver/src
diff --git a/sdk/communication/azure-communication-callingserver/pom.xml b/sdk/communication/azure-communication-callingserver/pom.xml
@@ -0,0 +1,154 @@
+<!-- Copyright (c) Microsoft Corporation. All rights reserved.
+     Licensed under the MIT License. -->
+<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/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>com.azure</groupId>
+    <artifactId>azure-client-sdk-parent</artifactId>
+    <version>1.7.0</version> <!-- {x-version-update;com.azure:azure-client-sdk-parent;current} -->
+    <relativePath>../../parents/azure-client-sdk-parent</relativePath>
+  </parent>
+
+  <groupId>com.azure</groupId>
+  <artifactId>azure-communication-callingserver</artifactId>
+  <packaging>jar</packaging>
+  <version>1.0.0-beta.1</version> <!-- {x-version-update;com.azure:azure-communication-callingserver;current} -->
+
+  <name>Microsoft Azure client library for CallingServer service</name>
+  <description>
+    This package contains clients and data structures used to make call with Azure Communication CallingServer Service.
+    For this release, see notes - https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/communication/azure-communication-callingserver/README.md and https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/communication/azure-communication-callingserver/CHANGELOG.md.
+  </description>
+  <url>https://github.com/Azure/azure-sdk-for-java</url>
+
+  <distributionManagement>
+    <site>
+      <id>azure-java-build-docs</id>
+      <url>${site.url}/site/${project.artifactId}</url>
+    </site>
+  </distributionManagement>
+
+  <scm>
+    <url>https://github.com/Azure/azure-sdk-for-java</url>
+    <connection>scm:git:git@github.com:Azure/azure-sdk-for-java.git</connection>
+    <tag>HEAD</tag>
+  </scm>
+
+  <properties>
+    <src.dir>src/main</src.dir>
+    <test.dir>src/test</test.dir>
+    <jacoco.min.linecoverage>0.70</jacoco.min.linecoverage>
+    <jacoco.min.branchcoverage>0.70</jacoco.min.branchcoverage>
+    <jacoco.skip.coverage.check>true</jacoco.skip.coverage.check>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core</artifactId>
+      <version>1.17.0</version> <!-- {x-version-update;com.azure:azure-core;dependency} -->
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-communication-common</artifactId>
+      <version>1.1.0-beta.1</version> <!-- {x-version-update;com.azure:azure-communication-common;current} -->
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-communication-identity</artifactId>
+      <version>1.1.1</version> <!-- {x-version-update;com.azure:azure-communication-identity;dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core-test</artifactId>
+      <version>1.6.3</version> <!-- {x-version-update;com.azure:azure-core-test;dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.nimbusds</groupId>
+      <artifactId>nimbus-jose-jwt</artifactId>
+      <version>9.8.1</version> <!-- {x-version-update;com.nimbusds:nimbus-jose-jwt;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>5.7.2</version> <!-- {x-version-update;org.junit.jupiter:junit-jupiter-api;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-engine</artifactId>
+      <version>5.7.2</version> <!-- {x-version-update;org.junit.jupiter:junit-jupiter-engine;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-params</artifactId>
+      <version>5.7.2</version> <!-- {x-version-update;org.junit.jupiter:junit-jupiter-params;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.hamcrest</groupId>
+      <artifactId>hamcrest-all</artifactId>
+      <version>1.3</version> <!-- {x-version-update;org.hamcrest:hamcrest-all;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <version>3.9.0</version> <!-- {x-version-update;org.mockito:mockito-core;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>io.projectreactor</groupId>
+      <artifactId>reactor-test</artifactId>
+      <version>3.4.6</version> <!-- {x-version-update;io.projectreactor:reactor-test;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core-http-okhttp</artifactId>
+      <version>1.7.0</version> <!-- {x-version-update;com.azure:azure-core-http-okhttp;dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-identity</artifactId>
+      <version>1.3.1</version> <!-- {x-version-update;com.azure:azure-identity;dependency} -->
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.jacoco</groupId>
+        <artifactId>jacoco-maven-plugin</artifactId>
+        <version>0.8.5</version> <!-- {x-version-update;org.jacoco:jacoco-maven-plugin;external_dependency} -->
+        <configuration>
+          <includes>
+            <include>com/azure/communication/callingserver/*.class</include>
+          </includes>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>3.0.0-M3</version> <!-- {x-version-update;org.apache.maven.plugins:maven-enforcer-plugin;external_dependency} -->
+        <configuration>
+          <rules>
+            <bannedDependencies>
+              <includes>
+                <include>com.azure:*</include>
+              </includes>
+            </bannedDependencies>
+          </rules>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>