Java CommonsHashSet类代码示例

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
private void _testPutRandom (final float fillFactor)
{
  final Random aRandom = RandomHelper.getRandom ();
  final int SIZE = 100 * 1000;
  final ICommonsSet <Integer> set = new CommonsHashSet <> (SIZE);
  final int [] vals = new int [SIZE];
  while (set.size () < SIZE)
    set.add (Integer.valueOf (aRandom.nextInt ()));
  int i = 0;
  for (final Integer v : set)
    vals[i++] = v.intValue ();

  final IntObjectMap <String> map = _makeMap (100, fillFactor);
  for (i = 0; i < vals.length; ++i)
  {
    assertNull ("Inserting " + vals[i], map.put (vals[i], _make (vals[i])));
    assertEquals (i + 1, map.size ());
    assertEquals (_make (vals[i]), map.get (vals[i]));
  }
  // now check the final state
  for (i = 0; i < vals.length; ++i)
    assertEquals (_make (vals[i]), map.get (vals[i]));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
private void _testPutRandom (final float fillFactor)
{
  final Random aRandom = RandomHelper.getRandom ();
  final int SIZE = 100 * 1000;
  final Set <Integer> set = new CommonsHashSet<> (SIZE);
  final int [] vals = new int [SIZE];
  while (set.size () < SIZE)
    set.add (Integer.valueOf (aRandom.nextInt ()));
  int i = 0;
  for (final Integer v : set)
    vals[i++] = v.intValue ();

  final IntFloatMap map = _makeMap (100, fillFactor);
  for (i = 0; i < vals.length; ++i)
  {
    assertEquals ("Inserting " + vals[i], IntFloatMap.NO_VALUE, map.put (vals[i], vals[i]), DELTA);
    assertEquals (i + 1, map.size ());
    assertEquals (vals[i], map.get (vals[i]), DELTA);
  }
  // now check the final state
  for (i = 0; i < vals.length; ++i)
    assertEquals (vals[i], map.get (vals[i]), DELTA);
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
private void _testPutRandom (final float fillFactor)
{
  final Random aRandom = RandomHelper.getRandom ();
  final int SIZE = 100 * 1000;
  final Set <Integer> set = new CommonsHashSet <> (SIZE);
  final int [] vals = new int [SIZE];
  while (set.size () < SIZE)
    set.add (Integer.valueOf (aRandom.nextInt ()));
  int i = 0;
  for (final Integer v : set)
    vals[i++] = v.intValue ();

  final IntDoubleMap map = _makeMap (100, fillFactor);
  for (i = 0; i < vals.length; ++i)
  {
    assertEquals ("Inserting " + vals[i], IntDoubleMap.NO_VALUE, map.put (vals[i], vals[i]), DELTA);
    assertEquals (i + 1, map.size ());
    assertEquals (vals[i], map.get (vals[i]), DELTA);
  }
  // now check the final state
  for (i = 0; i < vals.length; ++i)
    assertEquals (vals[i], map.get (vals[i]), DELTA);
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
private void _testPutRandom (final float fillFactor)
{
  final Random aRandom = RandomHelper.getRandom ();
  final int SIZE = 100 * 1000;
  final ICommonsSet <Integer> set = new CommonsHashSet<> (SIZE);
  final int [] vals = new int [SIZE];
  while (set.size () < SIZE)
    set.add (Integer.valueOf (aRandom.nextInt ()));
  int i = 0;
  for (final Integer v : set)
    vals[i++] = v.intValue ();

  final IntIntMap map = _makeMap (100, fillFactor);
  for (i = 0; i < vals.length; ++i)
  {
    assertEquals (0, map.put (vals[i], vals[i]));
    assertEquals (i + 1, map.size ());
    assertEquals (vals[i], map.get (vals[i]));
  }
  // now check the final state
  for (i = 0; i < vals.length; ++i)
    assertEquals (vals[i], map.get (vals[i]));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Nonnull
private MapBasedNamespaceContext _addMapping (@Nonnull final String sPrefix,
                                              @Nonnull final String sNamespaceURI,
                                              final boolean bAllowOverwrite)
{
  ValueEnforcer.notNull (sPrefix, "Prefix");
  ValueEnforcer.notNull (sNamespaceURI, "NamespaceURI");
  if (!bAllowOverwrite && m_aPrefix2NS.containsKey (sPrefix))
    throw new IllegalArgumentException ("The prefix '" +
                                        sPrefix +
                                        "' is already registered to '" +
                                        m_aPrefix2NS.get (sPrefix) +
                                        "'!");

  if (sPrefix.equals (XMLConstants.DEFAULT_NS_PREFIX))
    m_sDefaultNamespaceURI = sNamespaceURI;
  m_aPrefix2NS.put (sPrefix, sNamespaceURI);
  m_aNS2Prefix.computeIfAbsent (sNamespaceURI, x -> new CommonsHashSet <> ()).add (sPrefix);
  return this;
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testStringCombination2 ()
{
  final ICommonsList <String> aElements = new CommonsArrayList<> (A, B, B, C);
  final CombinationGenerator <String> x = new CombinationGenerator<> (aElements, 0);
  assertEquals (BigInteger.ONE, x.getTotalCombinations ());
  assertEquals (BigInteger.ONE, x.getCombinationsLeft ());

  final ICommonsList <ICommonsList <String>> aResultsWithDuplicates = new CommonsArrayList<> ();
  final ICommonsSet <ICommonsList <String>> aResultsWithoutDuplicates = new CommonsHashSet<> ();
  while (x.hasNext ())
  {
    final ICommonsList <String> aResult = x.next ();
    aResultsWithDuplicates.add (aResult);
    aResultsWithoutDuplicates.add (aResult);
  }
  assertEquals (1, aResultsWithDuplicates.size ());
  assertEquals (1, aResultsWithoutDuplicates.size ());
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Ignore ("Simply wrong assumption")
@Test
public void testRedundancy ()
{
  final ICommonsList <String> aInputList = new CommonsArrayList <> ("a", "b", "c", "d", "e", "f", "g", "h");

  // Build all permutations of the input list, using all available slots
  final ICommonsSet <ICommonsList <String>> aSimplePermutations = new CommonsHashSet <> ();
  CombinationGenerator.addAllPermutations (aInputList, aInputList.size (), aSimplePermutations);

  // Flexible combination generator
  final ICommonsSet <ICommonsList <String>> aFlexiblePermutations = CombinationGeneratorFlexible.getCombinations (aInputList,
                                                                                                                  true);
  assertTrue (aFlexiblePermutations.size () >= aSimplePermutations.size ());

  // Now the assumptions: I assume that all permutations from the flexible
  // generator are also contained in all permutations
  for (final ICommonsList <String> aList : aFlexiblePermutations)
    assertTrue (aList.toString (), aSimplePermutations.contains (aList));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testList ()
{
  final ICommonsList <String> aCont = new CommonsArrayList <> ("a", "b", "c");
  assertTrue (EqualsHelper.equalsCollection (aCont, aCont));
  assertTrue (EqualsHelper.equalsCollection (aCont, CollectionHelper.makeUnmodifiable (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, Collections.synchronizedList (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new CommonsLinkedList <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new CommonsVector <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new NonBlockingStack <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (new CommonsArrayList <String> (), new CommonsLinkedList <String> ()));
  assertTrue (EqualsHelper.equalsCollection (new NonBlockingStack <String> (), new CommonsVector <String> ()));
  assertTrue (EqualsHelper.equalsCollection (new NonBlockingStack <String> (), new Stack <String> ()));

  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsLinkedList <String> ()));
  assertFalse (EqualsHelper.equalsCollection (new CommonsLinkedList <String> (), aCont));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <String> ()));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> ("a", "b")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> ("A", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> ("a", "B", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> ("a", "b", "C")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> ("a", "b", "c", "d")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("a", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, ArrayHelper.newArray ("a", "b", "c")));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testSet ()
{
  final ICommonsSet <String> aCont = new CommonsHashSet <> ("a", "b", "c");
  assertTrue (EqualsHelper.equalsCollection (aCont, aCont));
  assertTrue (EqualsHelper.equalsCollection (aCont, CollectionHelper.makeUnmodifiable (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, Collections.synchronizedSet (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new CommonsLinkedHashSet <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (aCont, new CommonsTreeSet <> (aCont)));
  assertTrue (EqualsHelper.equalsCollection (new CommonsHashSet <String> (), new CommonsLinkedHashSet <String> ()));
  assertTrue (EqualsHelper.equalsCollection (new CommonsTreeSet <String> (), new CommonsHashSet <String> ()));

  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <String> ()));
  assertFalse (EqualsHelper.equalsCollection (new CommonsHashSet <String> (), aCont));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsTreeSet <String> ()));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("a", "b")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("A", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("a", "B", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("a", "b", "C")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("a", "b", "c", "d")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsArrayList <> ("a", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, ArrayHelper.newArray ("a", "b", "c")));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testMap ()
{
  final StringMap aMap = new StringMap ("a", "b").add ("c", "d");
  assertTrue (EqualsHelper.equalsCollection (aMap, aMap));
  assertTrue (EqualsHelper.equalsCollection (aMap, CollectionHelper.makeUnmodifiable (aMap)));
  assertTrue (EqualsHelper.equalsCollection (aMap, Collections.synchronizedMap (aMap)));
  assertTrue (EqualsHelper.equalsCollection (aMap, new StringMap ("a", "b").add ("c", "d")));
  assertTrue (EqualsHelper.equalsCollection (new CommonsHashMap <Integer, Integer> (),
                                             new CommonsHashMap <Double, Float> ()));

  assertFalse (EqualsHelper.equalsCollection (aMap, new CommonsHashMap <Integer, Integer> ()));
  assertFalse (EqualsHelper.equalsCollection (new CommonsHashMap <Integer, Integer> (), aMap));
  assertFalse (EqualsHelper.equalsCollection (aMap, new StringMap ("a", "b")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new StringMap ("A", "b").add ("c", "d")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new StringMap ("a", "B").add ("c", "d")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new StringMap ("a", "b").add ("C", "d")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new StringMap ("a", "b").add ("c", "D")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new StringMap ("a", "b").add ("c", "d").add ("e", "f")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new CommonsArrayList <> ("a", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aMap, new CommonsHashSet <> ("a", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aMap, ArrayHelper.newArray ("a", "b", "c")));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testArray ()
{
  final String [] aArray = ArrayHelper.newArray ("a", "b", "c");
  assertTrue (EqualsHelper.equalsCollection (aArray, aArray));
  assertTrue (EqualsHelper.equalsCollection (aArray, ArrayHelper.newArray ("a", "b", "c")));
  assertTrue (EqualsHelper.equalsCollection (new String [0], new String [] {}));

  assertFalse (EqualsHelper.equalsCollection (aArray, new String [0]));
  assertFalse (EqualsHelper.equalsCollection (new String [0], aArray));
  assertFalse (EqualsHelper.equalsCollection (aArray, ArrayHelper.newArray ("a", "b")));
  assertFalse (EqualsHelper.equalsCollection (aArray, ArrayHelper.newArray ("A", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aArray, ArrayHelper.newArray ("a", "B", "c")));
  assertFalse (EqualsHelper.equalsCollection (aArray, ArrayHelper.newArray ("a", "b", "C")));
  assertFalse (EqualsHelper.equalsCollection (aArray, ArrayHelper.newArray ("a", "b", "c", "d")));
  assertFalse (EqualsHelper.equalsCollection (aArray, new CommonsArrayList <> ("a", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aArray, new CommonsHashSet <> ("a", "b", "c")));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testIterable ()
{
  final Iterable <String> aCont = new MockIterable ("a", "b", "c");
  assertTrue (EqualsHelper.equalsCollection (aCont, aCont));
  assertTrue (EqualsHelper.equalsCollection (aCont, new MockIterable ("a", "b", "c")));
  assertTrue (EqualsHelper.equalsCollection (new MockIterable (), new MockIterable ()));

  assertFalse (EqualsHelper.equalsCollection (aCont, new MockIterable ()));
  assertFalse (EqualsHelper.equalsCollection (new MockIterable (), aCont));
  assertFalse (EqualsHelper.equalsCollection (aCont, new MockIterable ("a", "b")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new MockIterable ("A", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new MockIterable ("a", "B", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new MockIterable ("a", "b", "C")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new MockIterable ("a", "b", "c", "d")));
  assertFalse (EqualsHelper.equalsCollection (aCont, new CommonsHashSet <> ("a", "b", "c")));
  assertFalse (EqualsHelper.equalsCollection (aCont, ArrayHelper.newArray ("a", "b", "c")));
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testCtor ()
{
  NonBlockingStack <String> st = new NonBlockingStack<> ();
  assertTrue (st.isEmpty ());
  assertFalse (st.iterator ().hasNext ());
  st = new NonBlockingStack<> ("s", "t");
  assertEquals (2, st.size ());
  assertEquals ("s", st.firstElement ());
  assertTrue (st.iterator ().hasNext ());
  st = new NonBlockingStack<> ((String []) null);
  assertTrue (st.isEmpty ());
  assertFalse (st.iterator ().hasNext ());
  st = new NonBlockingStack<> (new CommonsArrayList<> ("s", "t"));
  assertEquals (2, st.size ());
  assertEquals ("s", st.firstElement ());
  assertTrue (st.iterator ().hasNext ());
  st = new NonBlockingStack<> (new CommonsHashSet <String> ());
  assertTrue (st.isEmpty ());
  assertFalse (st.iterator ().hasNext ());
  st = new NonBlockingStack<> (new NonBlockingStack<> ("s", "t"));
  assertEquals (2, st.size ());
  assertEquals ("s", st.firstElement ());
  assertTrue (st.iterator ().hasNext ());
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testGetDifference ()
{
  final ICommonsList <String> l1 = newList ("Hello", "Welt", "from", "Vienna");
  final ICommonsList <String> l2 = newList ("Welt", "from");

  // Result should be "Hello" and "Vienna"
  final Set <String> ret = getDifference (l1, l2);
  assertNotNull (ret);
  assertEquals (ret.size (), 2);
  assertTrue (ret.contains ("Hello"));
  assertFalse (ret.contains ("Welt"));
  assertFalse (ret.contains ("from"));
  assertTrue (ret.contains ("Vienna"));

  assertEquals (4, getDifference (l1, new CommonsVector <String> ()).size ());
  assertEquals (4, getDifference (l1, null).size ());
  assertEquals (0, getDifference (new CommonsHashSet <String> (), l2).size ());
  assertEquals (0, getDifference (null, l2).size ());
}
 

import com.helger.commons.collection.impl.CommonsHashSet; //导入依赖的package包/类
@Test
public void testAll ()
{
  // Ensure they are unique....
  final boolean bOld = RandomHelper.isUseSecureRandom ();
  RandomHelper.setUseSecureRandom (false);
  try
  {
    final ICommonsSet <String> aAll = new CommonsHashSet <> ();
    for (int i = 0; i < 1000; i++)
      assertTrue (aAll.add (AuthTokenIDGenerator.generateNewTokenID ()));
  }
  finally
  {
    RandomHelper.setUseSecureRandom (bOld);
  }
}