Maven Dependency
GroupId: net.sf.opencsv
ArtifactId: opencsv
Version: 2.1
Type: jar
Code sample, input could be
CSVParser parser = new CSVParser();
String values[] = parser.parseLine(lineText);
Sample input
This, "is", a. "huge time save utility. Handles this comma , nicely "
Use following command..(for generating code using Maven scroll down)
jdk\bin\xjc.exe -p com.mypkgname appscheama.xsd
INPUT Schema
I have used following XML Schema to model NFL scores
xml version="1.0" encoding="UTF-8"?>
xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.example.org/SportsSchema"
xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:nfl="http://www.example.org/SportsSchema"
elementFormDefault="qualified"><xs:complexType name="TeamType">
<xs:attribute name="name" type="xs:string"/>
<xs:attribute name="location" type="xs:string" />
<!--xs:complexType><xs:complexType name="FootballScoreType">
<xs:sequence>
<xs:element name="firstTeam" type="nfl:TeamType" />
<xs:element name="secondTeam" type="nfl:TeamType" />
<xs:element name="firstTeamPoints" type="xs:int" />
<xs:element name="secondTeamPoints" type="xs:int" />
<!--xs:sequence
<!--xs:complexType><xs:element name="scores">
<xs:complexType>
<xs:sequence>
<xs:element name="score" type="nfl:FootballScoreType" maxOccurs="unbounded" />
<!--xs:sequence>
<!--xs:complexType>
<!--xs:element>
</schema>AUTO GENERATED CODE
Upon running the xjc tool, various Java classes representing XML schema are generated. Following is an example of generated for one of the element in schema. Notice the annotations on Java classes, this what make the binding work. Generated code also a ObjectFactory which is used to create instances of various auto generated types.
//// This file was generated by the JavaTM Architecture for XML Binding(JAXB) Reference Implementation, v2.0.2-b01-fcs
// See xml/jaxb">http://java.sun.com/xml/jaxb
// Any modifications to this file will be lost upon recompilation of the source schema.
// Generated on: 2010.01.08 at 02:37:52 PM EST
//
package com.spag.dataxchange.generated;import java.math.BigInteger;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;import javax.xml.bind.annotation.XmlType;/**
*
Java class for FootballScoreType complex type. *
* <p>The following schema fragment specifies the expected content contained within this class.
*/
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "FootballScoreType", propOrder = { "firstTeam", "secondTeam", "firstTeamPoints", "secondTeamPoints"})
public class FootballScoreType { @XmlElement(required = true)
protected TeamType firstTeam; @XmlElement(required = true)
protected TeamType secondTeam; @XmlElement(required = true)
protected BigInteger firstTeamPoints; @XmlElement(required = true)
protected BigInteger secondTeamPoints;public TeamType getFirstTeam() {return firstTeam;}
public void setFirstTeam(TeamType value) {this.firstTeam = value;}
public TeamType getSecondTeam() {return secondTeam;}
public void setSecondTeam(TeamType value) {this.secondTeam = value;}
public BigInteger getFirstTeamPoints() { return firstTeamPoints; }
public void setFirstTeamPoints(BigInteger value) {this.firstTeamPoints = value;}
public BigInteger getSecondTeamPoints() {return secondTeamPoints;}
public void setSecondTeamPoints(BigInteger value) {this.secondTeamPoints = value;}
}package com.spag.dataxchange;import java.io.File;import java.util.Iterator;import java.util.List;import javax.xml.bind.JAXBContext;import javax.xml.bind.JAXBException;import javax.xml.bind.Marshaller;import javax.xml.bind.Unmarshaller;import javax.xml.bind.Validator;import com.spag.dataxchange.generated.*;
public class ScoreReader {public static void main(String [] args) {try {JAXBContext jaxbCtx = JAXBContext.newInstance("com.spag.dataxchange.generated") ;Unmarshaller reader = jaxbCtx.createUnmarshaller();Scores obj = (Scores)reader.unmarshal(new File("src/main/resources/data/scores.xml"));List list = obj.getScore();Iterator iter = list.iterator();int i = 0;while(iter.hasNext()) {i++;FootballScoreType score = iter.next();System.out.println("Game " + i );System.out.println( score.getFirstTeam().getLocation() + " - " + score.getFirstTeam().getName() + ": " + score.getFirstTeamPoints());System.out.println( score.getSecondTeam().getLocation() + " - " + score.getSecondTeam().getName() + ": " + score.getSecondTeamPoints());}} catch (JAXBException e) {e.printStackTrace();}}}
<jxb:bindings version="2.0" xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<jxb:bindings schemaLocation="GolfSchema.xsd" node="/xs:schema" >
<jxb:bindings node="//xs:complexType[@name='golfRound']">
<jxb:class ref="com.spag.dataxchange.golf.GolfRound"/>
<!--jxb:bindings>
<jxb:bindings node="//xs:complexType[@name='golfer']">
<jxb:class ref="com.spag.dataxchange.golf.Golfer"/>
<!--jxb:bindings>
<!--jxb:bindings>
<!--jxb:bindings><dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2</version>
</dependency>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<id>1</id>
<goals>
<goal>xjc</goal>
</goals>
<configuration>
<outputDirectory>${project.build.directory}/generated-sources</outputDirectory>
src/main/resources/schema/nfl
<schemaFiles>SportsSchema.xsd</schemaFiles>
<packageName>com.spag.dataxchange.generated</packageName> <!-- The name of your generated source package -->
</configuration>
</execution>
<execution>
<id>2</id>
<goals>
<goal>xjc</goal>
</goals>
<configuration>
<clearOutputDir>false</clearOutputDir>
<outputDirectory>${project.build.directory}/generated-sources</outputDirectory>
src/main/resources/schema/golf
<schemaFiles>GolfSchema.xsd</schemaFiles>
<packageName>com.spag.dataxchange.golf</packageName> <!-- The name of your generated source package -->
src/main/resources/schema/golf
<bindingFiles>bindings.xjb</bindingFiles>
</configuration>
</execution>
</executions>
</plugin>
Convert Java Objects into XML document (Marshal)
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxb2-maven-plugin</artifactId>
<version>1.3</version>
<executions>
<execution>
<goals>
<goal>schemagen</goal>
</goals>
</execution>
</executions>
<configuration>
<outputDirectory>${project.build.directory}/generated-schema</outputDirectory>
<includes>
<include>com/spag/dataxchange/golf/*.java</include>
</includes> <!-- The name of your generated source package -->
</configuration>
</plugin>