ExampleDataFactory.java

package er.ajax.example2.model;

import java.io.File;
import java.io.IOException;
import java.util.Random;

import com.webobjects.eocontrol.EOSortOrdering;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSMutableArray;

import er.extensions.components.ERXLoremIpsumGenerator;
import er.extensions.foundation.ERXFileUtilities;

public class ExampleDataFactory {

	private static NSMutableArray<Word> _exampleData;

	public static NSMutableArray<Word> randomWords(int count) {
		NSMutableArray<Word> words = new NSMutableArray<>();
		Random rand = new Random();
		for (int i = 0; i < count; i++) {
			String s = "";
			int max = 6 + rand.nextInt(6);
			for (int j = 0; j < max; j++) {
				int c = rand.nextInt(26);
				s += Character.toString((char) ('A' + c));
			}
			Word example = new Word(s);
			words.addObject(example);
		}
		return words;
	}

	public static synchronized NSArray<Word> allWords() {
		// some sample data. if we don't find the file, just create random strings
		if (_exampleData == null) {
			_exampleData = new NSMutableArray<>();
			File f = new File("/usr/share/dict/words");
			if (f.exists()) {
				try {
					String words = ERXFileUtilities.stringFromFile(f);
					String splitWords[] = words.split("\\n");
					for (int i = 0; i < splitWords.length; i++) {
						String word = splitWords[i];
						// we don't want all words, that just takes too long
						if (word.length() > 0 && ((i % 20) == 0)) {
							Word example = new Word(word);
							_exampleData.addObject(example);
						}
					}
				}
				catch (IOException e) {
					System.out.println("ExampleUtils.exampleValues: Can't read " + f + ": " + e);
				}
			}
			if (_exampleData.count() == 0) {
				_exampleData.addObjectsFromArray(ExampleDataFactory.randomWords(1000));
			}
			EOSortOrdering.sortArrayUsingKeyOrderArray(_exampleData, new NSArray<>(EOSortOrdering.sortOrderingWithKey("name", EOSortOrdering.CompareAscending)));

		}
		return _exampleData.immutableClone();
	}

	public static NSMutableArray<Product> products(int count) {
		NSMutableArray<Product> products = new NSMutableArray<>();
		for (int i = 0; i < count; i++) {
			String title = ERXLoremIpsumGenerator.words(1, 5);
			String summary = ERXLoremIpsumGenerator.paragraph();
			Product product = new Product(title, summary);
			products.addObject(product);
		}
		return products;
	}

	public static NSMutableArray<ComplexPerson> family() {
		NSMutableArray<ComplexPerson> people = new NSMutableArray<>();
		ComplexPerson mike = new ComplexPerson("Mike", 29);
		ComplexPerson kirsten = new ComplexPerson("Kirsten", 29);
		ComplexPerson andrew = new ComplexPerson("Andrew", 2);
		mike.setSpouse(kirsten);
		kirsten.setSpouse(mike);
		mike.setChildren(new NSArray<>(andrew));
		kirsten.setChildren(new NSArray<>(andrew));
		people.add(mike);
		people.add(kirsten);
		people.add(andrew);
		return people;
	}

//	public static NSArray<Company> companies(EOEditingContext editingContext) {
//		NSArray<Company> companies = Company.fetchAllCompanies(editingContext);
//		if (companies.count() == 0) {
//			Company.createCompany(editingContext, "Company 1");
//			Company.createCompany(editingContext, "Company 2");
//			Company.createCompany(editingContext, "Company 3");
//			Company.createCompany(editingContext, "Company 4");
//			editingContext.saveChanges();
//			companies = Company.fetchAllCompanies(editingContext);
//		}
//		return companies;
//	}

	public static NSMutableArray<Comment> comments(int count) {
		NSMutableArray<Comment> comments = new NSMutableArray<>();
		for (int i = 1; i < count; i++) {
			Comment comment = new Comment();
			comment.setText("This is comment #" + i);
			comments.addObject(comment);
		}
		return comments;
	}

	public static NSMutableArray<String> values(String prefix, int count) {
		NSMutableArray<String> values = new NSMutableArray<>();
		for (int i = 0; i < count; i++) {
			values.addObject(prefix + i);
		}
		return values;
	}

	public static NSMutableArray<Item> items(String idSuffix, String prefix, int count) {
		NSMutableArray<Item> items = new NSMutableArray<>();
		for (int i = 0; i < count; i++) {
			items.addObject(new Item(String.valueOf(i) + idSuffix, prefix + i));
		}
		return items;
	}
}