Step 3: Now we need to create company.xml file under project- create one xml file add the below xml to that file.
siva34Male3500001/07/1983PresentBangaloreKarnatakaIndiaPermanentKadapaAndharaPradeshIndiaSanjay27Male5500001/07/1988PresentBangaloreKarnatakaIndiaPermanentHyderabadTelanganaIndiaMadhan34Male80000001/07/1983Present and PermanentBangaloreKarnatakaIndia
Step 4: Create pojo classes , which need to be parsed as per above xml.
i have created 3 classes - Company.java -> List of Employee.java -> List Of Address.java
Company.java - xmlroot elment is company which is there in xml.
package xmltofile;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement(name="company")
public class Company {
private List employee = new ArrayList();
@XmlElement(name="employee")
public List getEmployee() {
return employee;
}
public void setEmployee(List employee) {
this.employee = employee;
}
}
Employee.java
package xmltofile;
import java.util.ArrayList;
import java.util.List;
import javax.xml.bind.annotation.XmlElement;
public class Employee {
private String name;
private int age;
private String gender;
private Double salary;
private String dob;
Listaddress = new ArrayList();
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
public Double getSalary() {
return salary;
}
public void setSalary(Double salary) {
this.salary = salary;
}
@XmlElement
public ListgetAddress() {
return address;
}
public void setAddress(Listaddress) {
this.address = address;
}
public String getDob() {
return dob;
}
public void setDob(String dob) {
this.dob = dob;
}
}
Address.java
package xmltofile;
import javax.xml.bind.annotation.XmlRootElement;
public class Address {
private String city;
private String type;
private String state;
private String country;
public String getCity() {
return city;
}
public void setCity(String city) {
this.city = city;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
}
Step 6: Now we need to write test class to Parse the employee.xml using JAXB context and create the Flat file
and write the xml data into file at specified index.
XMLReaderAndWriteToFile.java
package xmltofile;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Unmarshaller;
import com.ancientprogramming.fixedformat4j.format.FixedFormatManager;
import com.ancientprogramming.fixedformat4j.format.impl.FixedFormatManagerImpl;
import xmltofile.fixedformat.CompanyHeader;
import xmltofile.fixedformat.EmployeeHeader;
public class XMLReaderAndWriteToFile {
public static void main(String[] args) {
BufferedWriter bw = null;
try {
JAXBContext context = JAXBContext.newInstance(Company.class);
// Create Unmarshaller using JAXB context
Unmarshaller unmarshaller = context.createUnmarshaller();
System.out.println("xml file started to load...");
Company company = (Company) unmarshaller.unmarshal(new File("employee.xml"));
System.out.println("xml file loaded and parsed successfully..");
// Write to file with fixedformat
System.out.println("Flat file started to create...");
bw = new BufferedWriter(new FileWriter("fixedLength.txt", true));
System.out.println("empty flat file created...");
getCompanyHeader(bw);
System.out.println("company header written successfully to file.");
getEmployeeHeader(bw);
System.out.println("employee header written successfully to file.");
for (Employee employee : company.getEmployee()) {
EmployeeHeader employeeDetails = new EmployeeHeader();
employeeDetails.setNameHeader(employee.getName());
employeeDetails.setAgeHeader(String.valueOf(employee.getAge()));
employeeDetails.setGenderHeader(employee.getGender());
employeeDetails.setDobHeader(String.valueOf(employee.getDob()));
employeeDetails.setSalaryHeader(String.valueOf(employee.getSalary()));
String completeAddress = " ";
for (Address address : employee.getAddress()) {
String addressDetails = address.getCity() + " " + address.getState() + " " + address.getCountry()
+ " - " + address.getType();
completeAddress = completeAddress.concat(addressDetails) + " ";
}
employeeDetails.setAddressHeader(completeAddress);
FixedFormatManager manager1 = new FixedFormatManagerImpl();
String data1 = manager1.export(employeeDetails);
bw.write(data1);
bw.newLine();
}
System.out.println("Employee details written successfully to file.");
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
bw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
private static void getEmployeeHeader(BufferedWriter bw) throws IOException {
EmployeeHeader employeeHeader = new EmployeeHeader();
employeeHeader.setNameHeader("Employee Name");
employeeHeader.setAgeHeader("Age");
employeeHeader.setGenderHeader("Gender");
employeeHeader.setDobHeader("DOB");
employeeHeader.setSalaryHeader("Salary");
employeeHeader.setAddressHeader("Address");
FixedFormatManager manager = new FixedFormatManagerImpl();
String data = manager.export(employeeHeader);
bw.write(data);
bw.newLine();
bw.newLine();
bw.newLine();
}
private static void getCompanyHeader(BufferedWriter bw) throws IOException {
CompanyHeader companyHeader = new CompanyHeader();
companyHeader.setHeader1("ABC Company");
companyHeader.setHeader2("Bangalore");
companyHeader.setHeader3("India");
FixedFormatManager manager = new FixedFormatManagerImpl();
String data = manager.export(companyHeader);
bw.write(data);
bw.newLine();
bw.newLine();
bw.newLine();
}
}
Output file will be like this.
ABC Company Bangalore
Employee Name Age Gender Salary DOB Address
siva 34 Male 35000.0 01/07/1983 Bangalore Karnataka India - Present Kadapa AndharaPradesh India - Permanent
Sanjay 27 Male 55000.0 01/07/1988 Bangalore Karnataka India - Present Hyderabad Telangana India - Permanent
Madhan 34 Male 800000.0 01/07/1983 Bangalore Karnataka India - Present and Permanent
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