package com.orientechnologies.orient.core.iterator;
import java.util.HashSet;
import java.util.Set;
import com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx;
import com.orientechnologies.orient.core.metadata.schema.OClass;
import com.orientechnologies.orient.core.metadata.schema.OSchema;
import com.orientechnologies.orient.core.metadata.schema.OType;
import com.orientechnologies.orient.core.record.impl.ODocument;
import org.testng.Assert;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
/**
* @author Artem Loginov
*/
@Test
public class ClassIteratorTest {
private static final boolean RECREATE_DATABASE = true;
private static ODatabaseDocumentTx db = null;
private Set<String> names;
@BeforeMethod
public void setUp() throws Exception {
initializeDatabase();
// Insert some data
names = new HashSet<String>();
names.add("Adam");
names.add("Bob");
names.add("Calvin");
names.add("Daniel");
for (String name : names) {
createPerson(name);
}
}
@AfterClass
public void tearDown() throws Exception {
if (!db.isClosed())
db.close();
}
@Test
public void testIteratorShouldReuseRecordWithoutNPE() {
// Use class iterator.
// browseClass() returns all documents in RecordID order
// (including subclasses, which shouldn't exist for Person)
final ORecordIteratorClass<ODocument> personIter = db.browseClass("Person");
// Setting this to true causes the bug. Setting to false it works fine.
personIter.setReuseSameRecord(true);
int docNum = 0;
// Explicit iterator loop.
while (personIter.hasNext()) {
final ODocument personDoc = personIter.next();
Assert.assertTrue(names.contains(personDoc.field("First")));
Assert.assertTrue(names.remove(personDoc.field("First")));
System.out.printf("Doc %d: %s\n", docNum++, personDoc.toString());
}
Assert.assertTrue(names.isEmpty());
}
@Test
public void testIteratorShouldReuseRecordWithoutNPEUsingForEach() throws Exception {
// Use class iterator.
// browseClass() returns all documents in RecordID order
// (including subclasses, which shouldn't exist for Person)
final ORecordIteratorClass<ODocument> personIter = db.browseClass("Person");
// Setting this to true causes the bug. Setting to false it works fine.
personIter.setReuseSameRecord(true);
// Shorthand iterator loop.
int docNum = 0;
for (final ODocument personDoc : personIter) {
Assert.assertTrue(names.contains(personDoc.field("First")));
Assert.assertTrue(names.remove(personDoc.field("First")));
System.out.printf("Doc %d: %s\n", docNum++, personDoc.toString());
}
Assert.assertTrue(names.isEmpty());
}
private static void initializeDatabase() {
db = new ODatabaseDocumentTx("memory:" + ClassIteratorTest.class.getSimpleName());
if (db.exists() && RECREATE_DATABASE) {
db.open("admin", "admin");
db.drop();
System.out.println("Dropped database.");
}
if (!db.exists()) {
db.create();
System.out.println("Created database.");
final OSchema schema = db.getMetadata().getSchema();
// Create Person class
final OClass personClass = schema.createClass("Person");
personClass.createProperty("First", OType.STRING).setMandatory(true).setNotNull(true).setMin("1");
System.out.println("Created schema.");
} else {
db.open("admin", "admin");
}
}
private static void createPerson(final String first) {
// Create Person document
final ODocument personDoc = db.newInstance("Person");
personDoc.field("First", first);
personDoc.save();
}
}