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Addd example
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# Building this example in Linux
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## Prepare dependencies jar into work dir
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bash ./prepare.sh
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## Building jars
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bash ./build.sh
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# Running this sample
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The App.java has hardcoded values in it mentioned in the sections below. Those should be pointed to the right values.
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Before running this application, the kinit which somes with the JRE needs to be run to get a kerberos token.
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`<JRE_INSTALL_ROOT>\bin\kinit.exe <user>@<REALM>`
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e.g.
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`<JRE_INSTALL_ROOT>\bin\kinit.exe admin@ARIS.LOCAL`
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In Linux, you can directly using kinit in system.
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e.g.
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kinit admin@ARIS.LOCAL
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# Sample login.conf. There is an existing login.conf that is being checked in as well.
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For more details about login.conf refer https://docs.oracle.com/javase/7/docs/technotes/guides/security/jgss/tutorials/LoginConfigFile.html
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```
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com.sun.security.jgss.login {
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com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true;
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};
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com.sun.security.jgss.initiate {
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com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true;
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};
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com.sun.security.jgss.accept {
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com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true;
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};
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```
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In App.java the following properties need to be configured or parameterized using command line.
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```
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private static String GW_ENDPOINT = "https://knox.tdeupgrade.aris.local:30443/gateway/default/webhdfs/v1";
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private static String KDC = "ARIS-WIN2016-DC.aris.local";
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private static String DOMAIN_REALM = "ARIS.LOCAL";
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private static String LOGIN_CONF_PATH = "login.conf";
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```
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# Upload file example
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```
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java -cp "./running_work_dir/*" com.microsoft.mssql.App ./source /tmp/destination
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```
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+4
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mvn compile
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mvn package
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cp target/webhdfsclientsample-1.0-SNAPSHOT.jar running_work_dir/
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cd runnint_work_dir
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com.sun.security.jgss.login {
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com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true principal="admin";
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};
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com.sun.security.jgss.initiate {
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com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true principal="admin";
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};
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com.sun.security.jgss.accept {
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com.sun.security.auth.module.Krb5LoginModule required client=TRUE useTicketCache=true debug=true principal="admin";
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};
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.microsoft.mssql</groupId>
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<artifactId>webhdfsclientsample</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>webhdfsclientsample</name>
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<!-- FIXME change it to the project's website -->
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<url>http://www.example.com</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>1.7</maven.compiler.source>
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<maven.compiler.target>1.7</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.11</version>
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<scope>test</scope>
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</dependency>
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<!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
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<dependency>
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<groupId>org.apache.httpcomponents</groupId>
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<artifactId>httpclient</artifactId>
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<version>4.5.13</version>
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</dependency>
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<dependency>
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<groupId>org.apache.httpcomponents</groupId>
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<artifactId>httpmime</artifactId>
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<version>4.5.13</version>
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</dependency>
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</dependencies>
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<build>
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<pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
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<plugins>
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<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
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<plugin>
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<artifactId>maven-clean-plugin</artifactId>
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<version>3.1.0</version>
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</plugin>
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<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
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<plugin>
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<artifactId>maven-resources-plugin</artifactId>
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<version>3.0.2</version>
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<executions>
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<execution>
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<id>copy-resources</id>
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<phase>validate</phase>
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<goals>
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<goal>copy-resources</goal>
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</goals>
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<configuration>
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<outputDirectory>${basedir}/target/Crunchify</outputDirectory>
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<resources>
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<resource>
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<directory>resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-dependency-plugin</artifactId>
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<executions>
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<execution>
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<id>copy-dependencies</id>
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<phase>prepare-package</phase>
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<goals>
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<goal>copy-dependencies</goal>
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</goals>
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<configuration>
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<outputDirectory>${project.build.directory}/Crunchify/lib</outputDirectory>
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<overWriteReleases>false</overWriteReleases>
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<overWriteSnapshots>false</overWriteSnapshots>
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<overWriteIfNewer>true</overWriteIfNewer>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.22.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-jar-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-install-plugin</artifactId>
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<version>2.5.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<version>2.8.2</version>
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</plugin>
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<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
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<plugin>
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<artifactId>maven-site-plugin</artifactId>
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<version>3.7.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-project-info-reports-plugin</artifactId>
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<version>3.0.0</version>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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</project>
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+2
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# Prepare dependencies jars into a work dir
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mvn dependency:copy-dependencies -DoutputDirectory=running_work_dir -Dhttps.protocols=TLSv1.2
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+118
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package com.microsoft.mssql;
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import java.security.Principal;
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import java.io.File;
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import org.apache.http.HttpEntity;
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import org.apache.http.auth.AuthScope;
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import org.apache.http.auth.Credentials;
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import org.apache.http.client.CredentialsProvider;
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import org.apache.http.client.methods.CloseableHttpResponse;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.client.methods.HttpPut;
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import org.apache.http.client.methods.HttpUriRequest;
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import org.apache.http.client.methods.RequestBuilder;
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import org.apache.http.impl.client.CloseableHttpClient;
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import org.apache.http.entity.mime.MultipartEntityBuilder;
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import org.apache.http.impl.client.HttpClients;
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import org.apache.http.util.EntityUtils;
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/**
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* Sample app for Encryption Zone interactions with WebHdfs.
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*/
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public class App {
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// Properties to be configured before running the application.
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private static String GW_ENDPOINT = "https://knox.test.azdata.local:30443/gateway/default/webhdfs/v1";
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private static String KDC = "winad.azdata.local";
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private static String DOMAIN_REALM = "AZDATA.LOCAL";
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// The existing login.conf along with this project can be modified instead of providing a new path.
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private static String LOGIN_CONF_PATH = "login.conf";
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// End of properties to be configured.
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static Credentials emptyCredentials = new Credentials() {
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public String getPassword() {
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return null;
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}
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public Principal getUserPrincipal() {
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return null;
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}
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};
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static CredentialsProvider provider = new CredentialsProvider() {
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@Override
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public void setCredentials(AuthScope authscope, Credentials credentials) {
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// No op
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}
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@Override
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public Credentials getCredentials(AuthScope authscope) {
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//TODO: this can be enhanced to pass controller use name and password in case the AuthScope authscheme is basic.
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return emptyCredentials;
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}
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@Override
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public void clear() {
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// No op. Nothing to clean up.
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}
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};
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private static void uploadResource(String inputFilePath, String outputFilePath){
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System.out.println("Entering create resource");
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// Construct Knox endpoint
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String createOperationEndpoint = GW_ENDPOINT + outputFilePath + "?op=CREATE&overwrite=true";
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try (CloseableHttpClient client2 = HttpClients.custom().setDefaultCredentialsProvider(provider).build()) {
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HttpUriRequest request = new HttpPut(createOperationEndpoint);
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// First request to get the location in data nodes
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try (CloseableHttpResponse response = client2.execute(request)) {
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System.out.println("===============");
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String newlocation = response.getFirstHeader("Location").getValue();
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HttpEntity entity = response.getEntity();
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System.out.println("----------------------------------------");
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System.out.println(response.getStatusLine());
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System.out.println("----------------------------------------");
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if (entity != null) {
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System.out.println(EntityUtils.toString(entity));
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}
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System.out.println("----------------------------------------");
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EntityUtils.consume(entity);
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// Second request to put the content to that location
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File testUploadFile = new File(inputFilePath);
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HttpEntity putData = MultipartEntityBuilder.create().addBinaryBody("upfile", testUploadFile).build();
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HttpUriRequest putRequest = RequestBuilder.put(newlocation).setEntity(putData).build();//setEntity(postData).build();
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System.out.println("Executing request " + putRequest.getRequestLine());
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CloseableHttpResponse response2 = client2.execute(putRequest);
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HttpEntity entity2 = response2.getEntity();
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System.out.println("----------------------------------------");
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System.out.println(response2.getStatusLine());
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System.out.println("----------------------------------------");
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if (entity2 != null) {
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System.out.println(EntityUtils.toString(entity2));
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}
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System.out.println("----------------------------------------");
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}
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} catch (Exception e) {
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System.out.println(e);
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}
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}
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public static void main(String[] args) throws Exception {
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// These properties can be specified using command line as well by using
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// -Djava.security.auth.login.conf=login.conf -Djava.security.krb5.realm=MYDOMAIN.LOCAL
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// In case command line is used to pass these arguments, then code below setting system properties should not be used..
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System.setProperty("java.security.auth.login.config", LOGIN_CONF_PATH); // The login conf for Java GSS to use. See readme for a sample.
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System.setProperty("java.security.krb5.realm", DOMAIN_REALM); // The domain name.
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System.setProperty("java.security.krb5.kdc", KDC); // Provide the KDC name here
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System.setProperty("sun.security.krb5.debug", "true"); // This can be set to true to print debug information about Kerberos login.
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System.setProperty("javax.security.auth.useSubjectCredsOnly", "false");
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for(int i = 0; i < args.length; i++) {
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System.out.println(args[i]);
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}
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uploadResource(args[0], args[1]);
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}
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}
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+20
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package com.microsoft.mssql;
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import static org.junit.Assert.assertTrue;
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import org.junit.Test;
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/**
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* Unit test for simple App.
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*/
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public class AppTest
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{
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/**
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* Rigorous Test :-)
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*/
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@Test
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public void shouldAnswerWithTrue()
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{
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assertTrue( true );
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}
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}
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