sed (stream editor) is one of the powerful workhorse commands in UNIX. Recently I had to use it with “Git” and “Maven” to find text “SNAPSHOT” in all pom.xml files, and manually update them with a realease version like 1.0.2 without the suffix “SNAPSHOT”.
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In BigData projects relating to HDFS or AWS S3, it is common to have scripts that transfer or download data from HDFS to the local file system on an edge or gateway node with CLI commands like HDFS, AWS, etc. You also need to upload files from a local file...
Many industrial Java applications are developed om a WIN32 platfor, but run on a target platform, which is Unix based. If you are a beginner to Unix, and would like to work on an emulator that runs on a Win32 platform, this post is for you. MobaXterm is a set of Unix commands (GNU/Cygwin) included in a single portable exe file.
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Step 1:Create a new Java project via Maven as shown below, and import the project into eclipse IDE.
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mvn archetype:generate -DgroupId=com.mytutorial -DartifactId=xml-to-pojo-with-moxy -DinteractiveMode=false |
Step 2: The pom.xml file with the MOXy dependency.
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<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> <groupId>com.mytutorial</groupId> <artifactId>xml-to-pojo-with-moxy</artifactId> <packaging>jar</packaging> <version>1.0-SNAPSHOT</version> <name>xml-to-pojo-with-moxy</name> <url>http://maven.apache.org</url> <properties> <maven.compiler.source>1.8</maven.compiler.source> <maven.compiler.target>1.8</maven.compiler.target> <junit.version>4.8.1</junit.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>${junit.version}</version> <scope>test</scope> </dependency> <!-- XML (MOXy) --> <dependency> <groupId>org.eclipse.persistence</groupId> <artifactId>org.eclipse.persistence.moxy</artifactId> <version>2.6.2</version> </dependency> </dependencies> </project> |
Step 3: Create a new “Source Folder” … Read more ›...
Q. What APIs do Java provide to process XML? What are the pros and cons of each, and when to use what? A. SAX: Pros: Memory efficient and faster than the DOM parser. … Read more ›...
Step 1: Add “snakeyaml” to maven pom.xml as a dependency
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<dependency> <groupId>org.yaml</groupId> <artifactId>snakeyaml</artifactId> <version>1.17</version> </dependency> |
Step 2: Define a YAML file under src/main/resources. For example, “logging.yml”
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paths: logsPath: /mylogs packagePrefix: com.myapp |
Step 3: Create a LoggingConfiguration Java POJO class.
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import java.util.Map; public class LogConfiguration { private Map<String, String> paths; private String packagePrefix; public Map<String, String> getPaths() { return paths; } public void setPaths(Map<String, String> paths) { this.paths = paths; } public String getPackagePrefix() { return packagePrefix; } public void setPackagePrefix(String packagePrefix) { this.packagePrefix = packagePrefix; } @Override public String toString() { return "LogConfiguration [paths=" + paths + "]"; } } |
Step 4: Finally,
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Note: Yammer metrics has now moved to metrics-core.
from com.yammer.metrics:metrics-core:2.2.0 (NOT supported anymore) to com.codahale.metrics:metrics-core:3.0.*
from com.codahale.metrics:metrics-core:3.0.* to io.dropwizard.metrics:metrics-core:3.1.* since 2014.
When you are running long term applications like web applications, batch jobs,
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Zookeeper solves challenges in a distributed system. This extends Apache Zookeeper interview Q&As and Getting started with Zookeeper tutorial. In this Zookeeper tutorial let’s use Docker. Zookeeper image in Docker Hub Step 1: Zookeeper image can be found at Docker Hub. … Read more ›...
Links to Java Architecture Q&As
— Java/JEE integration styles interview questions and answers
— Java/JEE Architecture overview interview questions and answers
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Related Link 1. AngularJS 1.x with Spring MVC RESTful web service beginner tutorial in 14 steps. … Read more ›...
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