How to use

toBooleanObject

method

in

org.apache.commons.lang3.BooleanUtils

/**
 * 支持true/false, on/off, y/n, yes/no的转换, str为空或无法分析时返回null
 */
public static Boolean parseGeneralString(String str) {
  return BooleanUtils.toBooleanObject(str);
}

private static Boolean interpret(String arg) {
  return BooleanUtils.toBooleanObject(arg);
}

return toBooleanObject(str) == Boolean.TRUE;

/**
 * 支持true/false,on/off, y/n, yes/no的转换, str为空或无法分析时返回defaultValue
 */
public static Boolean parseGeneralString(String str, Boolean defaultValue) {
  return BooleanUtils.toBooleanDefaultIfNull(BooleanUtils.toBooleanObject(str), defaultValue);
}

@Test(expected = IllegalArgumentException.class)
public void test_toBooleanObject_String_String_String_String_nullValue() {
  BooleanUtils.toBooleanObject(null, "Y", "N", "U");
}

@Test(expected = IllegalArgumentException.class)
public void test_toBooleanObject_int_int_int_noMatch() {
  BooleanUtils.toBooleanObject(9, 6, 7, 8);
}

@Test(expected = IllegalArgumentException.class)
public void test_toBooleanObject_String_String_String_String_noMatch() {
  BooleanUtils.toBooleanObject("X", "Y", "N", "U");
}

@Test(expected = IllegalArgumentException.class)
public void test_toBooleanObject_Integer_Integer_Integer_Integer_nullValue() {
  BooleanUtils.toBooleanObject(null, Integer.valueOf(6), Integer.valueOf(7), Integer.valueOf(8));
}

@Test(expected = IllegalArgumentException.class)
public void test_toBooleanObject_Integer_Integer_Integer_Integer_noMatch() {
  BooleanUtils.toBooleanObject(Integer.valueOf(9), Integer.valueOf(6), Integer.valueOf(7), Integer.valueOf(8));
}

@Test
public void test_toBooleanObject_Integer_Integer_Integer_Integer() {
  final Integer six = Integer.valueOf(6);
  final Integer seven = Integer.valueOf(7);
  final Integer eight = Integer.valueOf(8);
  assertSame(Boolean.TRUE, BooleanUtils.toBooleanObject(null, null, seven, eight));
  assertSame(Boolean.FALSE, BooleanUtils.toBooleanObject(null, six, null, eight));
  assertSame(null, BooleanUtils.toBooleanObject(null, six, seven, null));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject(Integer.valueOf(6), six, seven, eight));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject(Integer.valueOf(7), six, seven, eight));
  assertNull(BooleanUtils.toBooleanObject(Integer.valueOf(8), six, seven, eight));
}

@Test
public void test_toBooleanObject_String_String_String_String() {
  assertSame(Boolean.TRUE, BooleanUtils.toBooleanObject(null, null, "N", "U"));
  assertSame(Boolean.FALSE, BooleanUtils.toBooleanObject(null, "Y", null, "U"));
  assertSame(null, BooleanUtils.toBooleanObject(null, "Y", "N", null));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("Y", "Y", "N", "U"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("N", "Y", "N", "U"));
  assertNull(BooleanUtils.toBooleanObject("U", "Y", "N", "U"));
}

@Test
public void test_toBooleanObject_Integer() {
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject(Integer.valueOf(1)));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject(Integer.valueOf(-1)));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject(Integer.valueOf(0)));
  assertNull(BooleanUtils.toBooleanObject((Integer) null));
}

@Test
public void test_toBooleanObject_int_int_int() {
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject(6, 6, 7, 8));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject(7, 6, 7, 8));
  assertNull(BooleanUtils.toBooleanObject(8, 6, 7, 8));
}

@Test
public void test_toBooleanObject_int() {
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject(1));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject(-1));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject(0));
}

@Test
public void test_toBooleanObject_String() {
  assertNull(BooleanUtils.toBooleanObject((String) null));
  assertNull(BooleanUtils.toBooleanObject(""));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("false"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("no"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("off"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("FALSE"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("NO"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("OFF"));
  assertNull(BooleanUtils.toBooleanObject("oof"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("true"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("yes"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("on"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("TRUE"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("ON"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("YES"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("TruE"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("TruE"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("y")); // yes
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("Y"));
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("t")); // true
  assertEquals(Boolean.TRUE, BooleanUtils.toBooleanObject("T"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("f")); // false
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("F"));
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("n")); // No
  assertEquals(Boolean.FALSE, BooleanUtils.toBooleanObject("N"));
  assertNull(BooleanUtils.toBooleanObject("z"));

@Override
public Boolean getBooleanProperty(String key, Boolean defaultValue) {
 String value = getProperty(key);
 if (value == null) {
  return defaultValue;
 }
 return ObjectUtils.defaultIfNull(BooleanUtils.toBooleanObject(value), defaultValue);
}

final Boolean b = BooleanUtils.toBooleanObject((String) value);
if (b == null)

  public boolean isOverwrite() {
    Boolean booleanObject = BooleanUtils.toBooleanObject(System.getProperty(OVERWRITE));
    if (booleanObject == null) {
      booleanObject = Boolean.FALSE;
    }
    return booleanObject;
  }
}

/**
 * Behaves much like org.apache.commons.lang3.BooleanUtils but returns the defaultValue if
 * the input string is null, empty, or unrecognized.
 */
public static boolean toBoolean(String s, boolean defaultValue) {
  final Boolean b = BooleanUtils.toBooleanObject(s);
  return b == null ? defaultValue : b.booleanValue();
}

private Boolean parseBoolValue(Object object) {
  if (object instanceof Boolean) {
    return (Boolean) object;
  } else if (object instanceof Number) {
    Byte num = ((Number) object).byteValue();
    return num > 0;
  }
  return BooleanUtils.toBooleanObject(String.valueOf(object));
}