import com.example.tutorial.AddressBookProtos.AddressBook;
import com.example.tutorial.AddressBookProtos.Person;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.PrintStream;
class AddPerson{
// This function fills in a Person message based on user input.
static Person PromptForAddress(BufferedReader stdin,PrintStream stdout) throws IOException{
Person.Builder person = Person.newBuilder();
stdout.print("Enter person ID: " );
person.setId(Integer.valueOf(stdin.readLine()));
stdout.print("Enter name: " );
person.setName(stdin.readLine());
stdout.print("Enter email address (blank for none): " );
String email = stdin.readLine();
if (email.length() > 0 ){
person.setEmail(email);
}
while ( true ){
stdout.print("Enter a phone number (or leave blank to finish): " );
String number = stdin.readLine();
if (number.length() == 0 ){
break ;
}
Person.PhoneNumber.Builder phoneNumber = Person.PhoneNumber.newBuilder().setNumber(number);
stdout.print("Is this a mobile, home, or work phone? " );
String type = stdin.readLine();
if (type.equals( "mobile" )){
phoneNumber.setType(Person.PhoneType.MOBILE);
} else if (type.equals( "home" )) {
phoneNumber.setType(Person.PhoneType.HOME);
} else if (type.equals( "work" )) {
phoneNumber.setType(Person.PhoneType.WORK);
} else {
stdout.println("Unknown phone type. Using default." );
}
person.addPhone(phoneNumber);
}
return person.build();
}
// Main function: Reads the entire address book from a file, adds one person based on user input,
//then writes it back out to the same file.
public static void main(String[] args) throws Exception{
if (args.length != 1 ) {
System.err.println("Usage: AddPerson ADDRESS_BOOK_FILE" );
System.exit(-1 );
}
AddressBook.Builder addressBook = AddressBook.newBuilder();
// Read the existing address book.
try {
addressBook.mergeFrom(new FileInputStream(args[ 0 ]));
} catch (FileNotFoundException e) {
System.out.println(args[0 ] + ": File not found. Creating a new file." );
}
// Add an address.
addressBook.addPerson(
PromptForAddress(new BufferedReader( new InputStreamReader(System.in)), System.out));
// Write the new address book back to disk.
FileOutputStream output = new FileOutputStream(args[ 0 ]);
addressBook.build().writeTo(output);
output.close();
}
}
import com.example.tutorial.AddressBookProtos.AddressBook;
import com.example.tutorial.AddressBookProtos.Person;
import java.io.FileInputStream;
public class ListPeople {
// Iterates though all people in the AddressBook and prints info about them.
static void Print(AddressBook addressBook) {
for (Person person: addressBook.getPersonList()) {
System.out.println("Person ID: " + person.getId());
System.out.println(" Name: " + person.getName());
if (person.hasEmail()) {
System.out.println(" E-mail address: " + person.getEmail());
}
for (Person.PhoneNumber phoneNumber : person.getPhoneList()) {
switch (phoneNumber.getType()) {
case MOBILE:
System.out.print(" Mobile phone #: " );
break ;
case HOME:
System.out.print(" Home phone #: " );
break ;
case WORK:
System.out.print(" Work phone #: " );
break ;
}
System.out.println(phoneNumber.getNumber());
}
}
}
// Main function: Reads the entire address book from a file and prints all the information inside.
/**
* @param args
* @throws Exception
*/
public static void main(String[] args) throws Exception {
if (args.length != 1 ) {
System.err.println("Usage: ListPeople ADDRESS_BOOK_FILE" );
System.exit(-1 );
}
// Read the existing address book.
AddressBook addressBook = AddressBook.parseFrom(new FileInputStream(args[ 0 ]));
Print(addressBook);
}
}
默认
首页
