AFP-000: implements blob trigger function

.gitignore

+# Build output
+target/
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+
+# IDE
+.idea/
+*.iml
+.settings/
+.project
+.classpath
+.vscode/
+
+# macOS
+.DS_Store
+
+# Azure Functions
+bin/
+obj/

host.json

+{
+  "version": "2.0",
+  "extensionBundle": {
+    "id": "Microsoft.Azure.Functions.ExtensionBundle",
+    "version": "[2.*, 3.0.0)"
+  } 
+}
\ No newline at end of file

local.settings.json

+{
+  "Values": {
+    "FUNCTIONS_EXTENSION_VERSION": "~4",
+    "APPINSIGHTS_INSTRUMENTATIONKEY": "1add74d8-accb-402c-9aed-8bce4a21150e",
+    "APPLICATIONINSIGHTS_CONNECTION_STRING": "InstrumentationKey=1add74d8-accb-402c-9aed-8bce4a21150e;IngestionEndpoint=https://centralus-2.in.applicationinsights.azure.com/;LiveEndpoint=https://centralus.livediagnostics.monitor.azure.com/",
+    "FUNCTIONS_WORKER_RUNTIME": "java"
+  },
+  "ConnectionStrings": {
+    "MyStorageConnectionAppSetting": "DefaultEndpointsProtocol=https;AccountName=clientbatchfiles;AccountKey=4A8bv/a0g2EcEiC2DDGtF275dkTK4Da4++OX0CcpFep0mgedNvhZkuBQObmDphWYPdy3VO/uKSvw+AStJEQAeg==;EndpointSuffix=core.windows.net"
+  },
+  "IsEncrypted": false
+}

pom.xml

+<?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>
+
+    <groupId>com.nisum.demo.blobStorage</groupId>
+    <artifactId>azure-function-blob-examples</artifactId>
+    <version>1.0.0-SNAPSHOT</version>
+    <packaging>jar</packaging>
+
+    <name>Azure Java Functions</name>
+
+    <properties>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <java.version>1.8</java.version>
+        <azure.functions.maven.plugin.version>1.16.0</azure.functions.maven.plugin.version>
+        <azure.functions.java.library.version>1.4.2</azure.functions.java.library.version>
+        <functionAppName>azure-function-blob-examples-1662974637381</functionAppName>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.microsoft.azure.functions</groupId>
+            <artifactId>azure-functions-java-library</artifactId>
+            <version>${azure.functions.java.library.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>com.microsoft.azure</groupId>
+            <artifactId>azure-storage</artifactId>
+            <version>8.6.4</version>
+        </dependency>
+
+        <!-- Test -->
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.4.2</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>2.23.4</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.8.1</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                    <encoding>${project.build.sourceEncoding}</encoding>
+                </configuration>
+            </plugin>
+            <plugin>
+                <groupId>com.microsoft.azure</groupId>
+                <artifactId>azure-functions-maven-plugin</artifactId>
+                <version>${azure.functions.maven.plugin.version}</version>
+                <configuration>
+                    <!-- function app name -->
+                    <appName>${functionAppName}</appName>
+                    <!-- function app resource group -->
+                    <resourceGroup>java-functions-group</resourceGroup>
+                    <!-- function app service plan name -->
+                    <appServicePlanName>java-functions-app-service-plan</appServicePlanName>
+                    <!-- function app region-->
+                    <!-- refers https://github.com/microsoft/azure-maven-plugins/wiki/Azure-Functions:-Configuration-Details#supported-regions for all valid values -->
+                    <region>westus</region>
+                    <!-- function pricingTier, default to be consumption if not specified -->
+                    <!-- refers https://github.com/microsoft/azure-maven-plugins/wiki/Azure-Functions:-Configuration-Details#supported-pricing-tiers for all valid values -->
+                    <!-- <pricingTier></pricingTier> -->
+
+                    <!-- Whether to disable application insights, default is false -->
+                    <!-- refers https://github.com/microsoft/azure-maven-plugins/wiki/Azure-Functions:-Configuration-Details for all valid configurations for application insights-->
+                    <!-- <disableAppInsights></disableAppInsights> -->
+                    <runtime>
+                        <!-- runtime os, could be windows, linux or docker-->
+                        <os>windows</os>
+                        <javaVersion>8</javaVersion>
+                        <!-- for docker function, please set the following parameters -->
+                        <!-- <image>[hub-user/]repo-name[:tag]</image> -->
+                        <!-- <serverId></serverId> -->
+                        <!-- <registryUrl></registryUrl>  -->
+                    </runtime>
+                    <appSettings>
+                        <property>
+                            <name>FUNCTIONS_EXTENSION_VERSION</name>
+                            <value>~3</value>
+                        </property>
+                    </appSettings>
+                </configuration>
+                <executions>
+                    <execution>
+                        <id>package-functions</id>
+                        <goals>
+                            <goal>package</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+            <!--Remove obj folder generated by .NET SDK in maven clean-->
+            <plugin>
+                <artifactId>maven-clean-plugin</artifactId>
+                <version>3.1.0</version>
+                <configuration>
+                    <filesets>
+                        <fileset>
+                            <directory>obj</directory>
+                        </fileset>
+                    </filesets>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+</project>

src/main/java/com/nisum/demo/blobStorage/BlobTriggerFunction.java

+package com.nisum.demo.blobStorage;
+
+import com.microsoft.azure.functions.annotation.*;
+import com.microsoft.azure.functions.*;
+
+/**
+ * Azure Functions with Azure Blob trigger.
+ */
+public class BlobTriggerFunction {
+    /**
+     * This function will be invoked when a new or updated blob is detected at the specified path. The blob contents are provided as input to this function.
+     */
+    @FunctionName("BlobTriggerFunc")
+    public void run(
+        @BlobTrigger(name = "file", path = "test/{name}", dataType = "binary", connection = "MyStorageConnectionAppSetting") byte[] content,
+        @BindingName("name") String name,
+        final ExecutionContext context
+    ) {
+        context.getLogger().info("Java Blob trigger function processed a blob. Name: " + name + "\n  Size: " + content.length + " Bytes");
+    }
+}