Initial commit - ModelsRepository Client

.github/CODEOWNERS

@@ -48,6 +48,9 @@
 # PRLabel: %Digital Twins
 /sdk/digitaltwins/                                  @drwill-ms @timtay-microsoft @abhipsaMisra @vinagesh @azabbasi @bikamani @barustum
 
+# PRLabel: %Models Repository
+/sdk/modelsrepository                               @drwill-ms @timtay-microsoft @abhipsaMisra @vinagesh @azabbasi @bikamani @barustum @digimaun
+
 # PRLabel: %Event Grid
 /sdk/eventgrid/                                     @srnagar @yijunxiems
 

eng/versioning/version_client.txt

@@ -78,6 +78,7 @@ com.azure:azure-e2e;1.0.0-beta.1;1.0.0-beta.1
 com.azure:azure-identity;1.2.4;1.3.0-beta.3
 com.azure:azure-identity-perf;1.0.0-beta.1;1.0.0-beta.1
 com.azure:azure-iot-deviceupdate;1.0.0-beta.1;1.0.0-beta.2
+com.azure:azure-iot-modelsrepository;1.0.0-beta.1;1.0.0-beta.1
 com.azure:azure-messaging-eventgrid;4.0.0;4.1.0-beta.1
 com.azure:azure-messaging-eventhubs;5.6.0;5.7.0-beta.1
 com.azure:azure-messaging-eventhubs-checkpointstore-blob;1.5.1;1.6.0-beta.1

pom.xml

@@ -78,6 +78,9 @@
         <!-- Mixed Reality -->
         <module>sdk/mixedreality/azure-mixedreality-authentication</module>
 
+        <!-- Models Repository -->
+        <module>sdk/modelsrepository/azure-iot-modelsrepository</module>
+
         <!-- Quantum Jobs -->
         <module>sdk/quantum/azure-quantum-jobs</module>
 
@@ -241,6 +244,10 @@
                     <title>Azure Digital Twins</title>
                     <packages>com.azure.digitaltwins.core*</packages>
                   </group>
+                  <group>
+                    <title>Azure IoT Models Repository</title>
+                    <packages>com.azure.iot.modelsrepository*</packages>
+                  </group>
                   <group>
                     <title>Azure Form Recognizer</title>
                     <packages>com.azure.ai.formrecognizer*</packages>
@@ -619,6 +626,7 @@
         <module>sdk/mediaservices</module>
         <module>sdk/metricsadvisor</module>
         <module>sdk/mixedreality</module>
+        <module>sdk/modelsrepository</module>
         <module>sdk/monitor</module>
         <module>sdk/mysql</module>
         <module>sdk/netapp</module>

sdk/modelsrepository/azure-iot-modelsrepository/CHANGELOG.md

@@ -0,0 +1,19 @@
+# Release History
+
+## 1.0.0-beta.1 (Unreleased)
+
+### New features
+
+- N/A
+
+### Breaking changes
+
+- N/A
+
+### Added
+
+- N/A
+
+### Fixes and improvements
+
+- N/A

sdk/modelsrepository/azure-iot-modelsrepository/README.md

@@ -0,0 +1,36 @@
+# Azure IoT Models Repository client library for Java
+
+## Getting started
+
+The complete Microsoft Azure SDK can be downloaded from the [Microsoft Azure downloads][microsoft_sdk_download] page, and it ships with support for building deployment packages, integrating with tooling, rich command line tooling, and more.
+
+For the best development experience, developers should use the official Microsoft Maven packages for libraries. Maven packages will be regularly updated with new functionality and hotfixes.
+
+### Include the Package
+
+### Prerequisites
+
+### Authenticate the Client
+
+## Key concepts
+
+## Troubleshooting
+
+## Next steps
+
+## Contributing
+
+This project welcomes contributions and suggestions.
+Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution.
+For details, visit <https://cla.microsoft.com.>.
+
+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][code_of_conduct].
+For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.
+
+<!-- LINKS -->
+[microsoft_sdk_download]: https://azure.microsoft.com/downloads/?sdk=net
+[code_of_conduct]: https://opensource.microsoft.com/codeofconduct/

sdk/modelsrepository/azure-iot-modelsrepository/build.ps1

@@ -0,0 +1,14 @@
+# Builds the azure-iot-modelsrepository project
+# The output will be in the target directory.
+# You can use the generated azure-iot-modelsrepository-x-sources.jar to upload to the API review tool at https://apiview.dev/
+
+param (
+    [Parameter(Mandatory = $false)]
+    [switch] $skipTests
+)
+
+if ($skipTests) {
+    mvn install -DskipTests
+} else {
+    mvn install
+}

sdk/modelsrepository/azure-iot-modelsrepository/pom.xml

@@ -0,0 +1,147 @@
+<?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>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-iot-modelsrepository</artifactId>
+  <version>1.0.0-beta.1</version> <!-- {x-version-update;com.azure:azure-iot-modelsrepository;current} -->
+
+  <name>Microsoft Azure client library for Models Repository</name>
+  <description>This package contains the Microsoft Azure IoT ModelsRepository client library.</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>scm:git: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>
+
+  <dependencies>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core</artifactId>
+      <version>1.13.0</version> <!-- {x-version-update;com.azure:azure-core;dependency} -->
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core-http-netty</artifactId>
+      <version>1.8.0</version> <!-- {x-version-update;com.azure:azure-core-http-netty;dependency} -->
+    </dependency>
+
+    <!-- Test dependencies -->
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core-test</artifactId>
+      <version>1.5.3</version> <!-- {x-version-update;com.azure:azure-core-test;dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-identity</artifactId>
+      <version>1.2.3</version> <!-- {x-version-update;com.azure:azure-identity;dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>com.azure</groupId>
+      <artifactId>azure-core-http-okhttp</artifactId>
+      <version>1.5.0</version> <!-- {x-version-update;com.azure:azure-core-http-okhttp;dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.junit.jupiter</groupId>
+      <artifactId>junit-jupiter-api</artifactId>
+      <version>5.6.3</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>5.6.3</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>5.6.3</version> <!-- {x-version-update;org.junit.jupiter:junit-jupiter-params;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.assertj</groupId>
+      <artifactId>assertj-core</artifactId>
+      <version>3.16.1</version> <!-- {x-version-update;org.assertj:assertj-core;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>commons-cli</groupId>
+      <artifactId>commons-cli</artifactId>
+      <version>1.3</version> <!-- {x-version-update;commons-cli:commons-cli;external_dependency} -->
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <testResources>
+      <testResource>
+        <directory>src/samples/resources</directory>
+      </testResource>
+      <testResource>
+        <directory>src/test/resources</directory>
+      </testResource>
+    </testResources>
+    <plugins>
+      <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.fasterxml.jackson.core:jackson-annotations:[2.12.1]</include> <!-- {x-include-update;com.fasterxml.jackson.core:jackson-annotations;external_dependency} -->
+              </includes>
+            </bannedDependencies>
+          </rules>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+  <profiles>
+    <profile>
+      <id>java-lts</id>
+      <activation>
+        <jdk>[11,)</jdk>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-surefire-plugin</artifactId>
+            <version>3.0.0-M3</version> <!-- {x-version-update;org.apache.maven.plugins:maven-surefire-plugin;external_dependency} -->
+            <configuration>
+              <argLine>
+                --add-exports com.azure.core/com.azure.core.implementation.http=ALL-UNNAMED
+                --add-opens com.azure.iot.modelsrepository/com.azure.iot.modelsrepository=ALL-UNNAMED
+              </argLine>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+</project>

sdk/modelsrepository/azure-iot-modelsrepository/src/main/java/com/azure/iot/modelsrepository/DtmiConventions.java

@@ -0,0 +1,128 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+package com.azure.iot.modelsrepository;
+
+import com.azure.core.util.UrlBuilder;
+import com.azure.iot.modelsrepository.implementation.ModelsRepositoryConstants;
+import com.azure.iot.modelsrepository.implementation.StatusStrings;
+
+import java.io.File;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Locale;
+import java.util.regex.Pattern;
+
+/**
+ * DtmiConventions implements the core aspects of the IoT model repo conventions
+ * which includes DTMI validation and calculating a URI path from a DTMI.
+ */
+public final class DtmiConventions {
+
+    private DtmiConventions() { }
+
+    /**
+     * A DTMI has three components: scheme, path, and version.
+     * Scheme and path are separated by a colon. Path and version are separated by a semicolon i.e. scheme : path ; version.
+     * The scheme is the string literal "dtmi" in lowercase. The path is a sequence of one or more segments, separated by colons.
+     * The version is a sequence of one or more digits. Each path segment is a non-empty string containing only letters, digits, and undersc
+     * The first character may not be a digit, and the last character may not be an underscore.
+     * The version length is limited to nine digits, because the number 999,999,999 fits in a 32-bit signed integer value.
+     * The first digit may not be zero, so there is no ambiguity regarding whether version 1 matches version 01 since the latter is invalid.
+     */
+    private static final Pattern VALID_DTMI_PATTERN = Pattern.compile("^dtmi:[A-Za-z](?:[A-Za-z0-9_]*[A-Za-z0-9])?(?::[A-Za-z](?:[A-Za-z0-9_]*[A-Za-z0-9])?)*;[1-9][0-9]{0,8}$");
+
+    /**
+     * Indicates whether a given string DTMI value is well-formed.
+     *
+     * @param dtmi DigitalTwin Model Id
+     * @return True if dtmi has a valid format. False otherwise.
+     */
+    public static boolean isValidDtmi(String dtmi) {
+        if (dtmi == null || dtmi.isEmpty()) {
+            return false;
+        }
+
+        return VALID_DTMI_PATTERN.matcher(dtmi).matches();
+    }
+
+    /**
+     * Generates the model URI.
+     *
+     * @param dtmi DigitalTwin Model Id.
+     * @param repositoryUri The repository uri
+     * @param expanded Is model from precomputed values
+     * @return The model uri
+     * Will throw an {@link IllegalArgumentException} if the provided dtmi is not valid.
+     */
+    public static URI getModelUri(String dtmi, URI repositoryUri, boolean expanded) {
+        String dtmiPath = dtmiToPath(dtmi);
+
+        if (expanded) {
+            dtmiPath = dtmiPath.replace(ModelsRepositoryConstants.JSON_EXTENSION, ModelsRepositoryConstants.JSON_EXPANDED_EXTENSION);
+        }
+
+        UrlBuilder urlBuilder = new UrlBuilder();
+        urlBuilder.setHost(repositoryUri.getHost());
+        urlBuilder.setScheme(repositoryUri.getScheme());
+        urlBuilder.setPath(repositoryUri.getPath());
+        urlBuilder.setQuery(repositoryUri.getQuery());
+
+        if (repositoryUri.getPort() > 0) {
+            urlBuilder.setPort(repositoryUri.getPort());
+        }
+
+        String path = urlBuilder.getPath();
+
+        if (path != null && !path.endsWith("/")) {
+            urlBuilder.setPath(path + "/");
+        }
+
+        if (urlBuilder.getPath() == null) {
+            urlBuilder.setPath(dtmiPath);
+        } else {
+            urlBuilder.setPath(urlBuilder.getPath() + dtmiPath);
+        }
+
+        try {
+            return new URI(urlBuilder.toString());
+        } catch (Exception e) {
+            // No exceptions will be thrown as the input is a valid URI format.
+            return null;
+        }
+    }
+
+    /**
+     * Converts a string to {@link URI}
+     *
+     * @param uri String format of the path
+     * @return {@link URI} representation of the path/uri   .
+     */
+    public static URI convertToUri(String uri) {
+        try {
+            return new URI(uri);
+        } catch (URISyntaxException ex) {
+            try {
+                Path path = Paths.get(uri).normalize();
+                return new File(path.toAbsolutePath().toString()).toURI();
+            }
+            catch (Exception e) {
+                throw new IllegalArgumentException("Invalid uri format", e);
+            }
+        }
+    }
+
+    static String dtmiToPath(String dtmi) {
+        if (!isValidDtmi(dtmi)) {
+            throw new IllegalArgumentException(String.format(StatusStrings.INVALID_DTMI_FORMAT_S, dtmi));
+        }
+
+        return dtmi
+            .toLowerCase(Locale.getDefault())
+            .replaceAll(":", "/")
+            .replaceAll(";", "-")
+            + ModelsRepositoryConstants.JSON_EXTENSION;
+    }
+}