org.apache.commons.lang3.Validate.noNullElements()方法的使用及代码示例
本文整理了Java中org.apache.commons.lang3.Validate.noNullElements()方法的一些代码示例，展示了Validate.noNullElements()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Validate.noNullElements()方法的具体详情如下：
包路径：org.apache.commons.lang3.Validate
类名称：Validate
方法名：noNullElements
Validate.noNullElements介绍
[英]Validate that the specified argument iterable is neither null nor contains any elements that are null; otherwise throwing an exception.
Validate.noNullElements(myCollection);If the iterable is null, then the message in the exception is "The validated object is null".
If the array has a null element, then the message in the exception is "The validated iterable contains null element at index: " followed by the index.
[中]验证指定的参数iterable既不是null，也不包含任何null元素；否则将引发异常。
Validate.noNullElements(myCollection);如果iterable为null，则异常中的消息为“已验证对象为null”。
如果数组有null元素，则异常中的消息是“已验证的iterable包含索引处的null元素：”后跟索引。
代码示例
代码示例来源：origin: org.apache.commons/commons-lang3
/**
* <p>Validate that the specified argument array is neither
* {@code null} nor contains any elements that are {@code null};
* otherwise throwing an exception.</p>
*
* <pre>Validate.noNullElements(myArray);</pre>
*
* <p>If the array is {@code null}, then the message in the exception
* is "The validated object is null".</p>
*
* <p>If the array has a {@code null} element, then the message in the
* exception is "The validated array contains null element at index:
* " followed by the index.</p>
*
* @param <T> the array type
* @param array the array to check, validated not null by this method
* @return the validated array (never {@code null} method for chaining)
* @throws NullPointerException if the array is {@code null}
* @throws IllegalArgumentException if an element is {@code null}
* @see #noNullElements(Object[], String, Object...)
*/
public static <T> T[] noNullElements(final T[] array) {
return noNullElements(array, DEFAULT_NO_NULL_ELEMENTS_ARRAY_EX_MESSAGE);
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* <p>Validate that the specified argument iterable is neither
* {@code null} nor contains any elements that are {@code null};
* otherwise throwing an exception.
*
* <pre>Validate.noNullElements(myCollection);</pre>
*
* <p>If the iterable is {@code null}, then the message in the exception
* is "The validated object is null".</p>
*
* <p>If the array has a {@code null} element, then the message in the
* exception is "The validated iterable contains null element at index:
* " followed by the index.</p>
*
* @param <T> the iterable type
* @param iterable the iterable to check, validated not null by this method
* @return the validated iterable (never {@code null} method for chaining)
* @throws NullPointerException if the array is {@code null}
* @throws IllegalArgumentException if an element is {@code null}
* @see #noNullElements(Iterable, String, Object...)
*/
public static <T extends Iterable<?>> T noNullElements(final T iterable) {
return noNullElements(iterable, DEFAULT_NO_NULL_ELEMENTS_COLLECTION_EX_MESSAGE);
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* Find the "best guess" middle value among comparables. If there is an even
* number of total values, the lower of the two middle values will be returned.
* @param <T> type of values processed by this method
* @param items to compare
* @return T at middle position
* @throws NullPointerException if items is {@code null}
* @throws IllegalArgumentException if items is empty or contains {@code null} values
* @since 3.0.1
*/
@SafeVarargs
public static <T extends Comparable<? super T>> T median(final T... items) {
Validate.notEmpty(items);
Validate.noNullElements(items);
final TreeSet<T> sort = new TreeSet<>();
Collections.addAll(sort, items);
@SuppressWarnings("unchecked") //we know all items added were T instances
final T result = (T) sort.toArray()[(sort.size() - 1) / 2];
return result;
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* <p>Creates a long bit vector representation of the given array of Enum values.</p>
*
* <p>This generates a value that is usable by {@link EnumUtils#processBitVector}.</p>
*
* <p>Do not use this method if you have more than 64 values in your Enum, as this
* would create a value greater than a long can hold.</p>
*
* @param enumClass the class of the enum we are working with, not {@code null}
* @param values the values we want to convert, not {@code null}
* @param <E> the type of the enumeration
* @return a long whose value provides a binary representation of the given set of enum values.
* @throws NullPointerException if {@code enumClass} or {@code values} is {@code null}
* @throws IllegalArgumentException if {@code enumClass} is not an enum class or has more than 64 values
* @since 3.0.1
* @see #generateBitVectors(Class, Iterable)
*/
@SafeVarargs
public static <E extends Enum<E>> long generateBitVector(final Class<E> enumClass, final E... values) {
Validate.noNullElements(values);
return generateBitVector(enumClass, Arrays.asList(values));
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* Find the "best guess" middle value among comparables. If there is an even
* number of total values, the lower of the two middle values will be returned.
* @param <T> type of values processed by this method
* @param comparator to use for comparisons
* @param items to compare
* @return T at middle position
* @throws NullPointerException if items or comparator is {@code null}
* @throws IllegalArgumentException if items is empty or contains {@code null} values
* @since 3.0.1
*/
@SafeVarargs
public static <T> T median(final Comparator<T> comparator, final T... items) {
Validate.notEmpty(items, "null/empty items");
Validate.noNullElements(items);
Validate.notNull(comparator, "null comparator");
final TreeSet<T> sort = new TreeSet<>(comparator);
Collections.addAll(sort, items);
@SuppressWarnings("unchecked") //we know all items added were T instances
final
T result = (T) sort.toArray()[(sort.size() - 1) / 2];
return result;
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* Create a parameterized type instance.
*
* @param owner the owning type
* @param raw the raw class to create a parameterized type instance for
* @param typeArguments the types used for parameterization
*
* @return {@link ParameterizedType}
* @since 3.2
*/
public static final ParameterizedType parameterizeWithOwner(final Type owner, final Class<?> raw,
final Type... typeArguments) {
Validate.notNull(raw, "raw class is null");
final Type useOwner;
if (raw.getEnclosingClass() == null) {
Validate.isTrue(owner == null, "no owner allowed for top-level %s", raw);
useOwner = null;
} else if (owner == null) {
useOwner = raw.getEnclosingClass();
} else {
Validate.isTrue(isAssignable(owner, raw.getEnclosingClass()),
"%s is invalid owner type for parameterized %s", owner, raw);
useOwner = owner;
}
Validate.noNullElements(typeArguments, "null type argument at index %s");
Validate.isTrue(raw.getTypeParameters().length == typeArguments.length,
"invalid number of type parameters specified: expected %d, got %d", raw.getTypeParameters().length,
typeArguments.length);
return new ParameterizedTypeImpl(raw, useOwner, typeArguments);
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* <p>Creates a bit vector representation of the given subset of an Enum using as many {@code long}s as needed.</p>
*
* <p>This generates a value that is usable by {@link EnumUtils#processBitVectors}.</p>
*
* <p>Use this method if you have more than 64 values in your Enum.</p>
*
* @param enumClass the class of the enum we are working with, not {@code null}
* @param values the values we want to convert, not {@code null}, neither containing {@code null}
* @param <E> the type of the enumeration
* @return a long[] whose values provide a binary representation of the given set of enum values
* with least significant digits rightmost.
* @throws NullPointerException if {@code enumClass} or {@code values} is {@code null}
* @throws IllegalArgumentException if {@code enumClass} is not an enum class, or if any {@code values} {@code null}
* @since 3.2
*/
@SafeVarargs
public static <E extends Enum<E>> long[] generateBitVectors(final Class<E> enumClass, final E... values) {
asEnum(enumClass);
Validate.noNullElements(values);
final EnumSet<E> condensed = EnumSet.noneOf(enumClass);
Collections.addAll(condensed, values);
final long[] result = new long[(enumClass.getEnumConstants().length - 1) / Long.SIZE + 1];
for (final E value : condensed) {
result[value.ordinal() / Long.SIZE] |= 1L << (value.ordinal() % Long.SIZE);
}
ArrayUtils.reverse(result);
return result;
}代码示例来源：origin: org.apache.commons/commons-lang3
/**
* Append {@code types} to {@code buf} with separator {@code sep}.
* @param buf destination
* @param sep separator
* @param types to append
* @return {@code buf}
* @since 3.2
*/
private static <T> StringBuilder appendAllTo(final StringBuilder buf, final String sep, final T... types) {
Validate.notEmpty(Validate.noNullElements(types));
if (types.length > 0) {
buf.append(toString(types[0]));
for (int i = 1; i < types.length; i++) {
buf.append(sep).append(toString(types[i]));
}
}
return buf;
}代码示例来源：origin: SpongePowered/SpongeAPI
/**
* Creates a new {@link Color} combining the provided {@link DyeColor}
* objects. Since {@link DyeColor}s can be converted into {@link Color}
* objects themselves, their summation and average is taken into effect
* to properly mix the colors together.
*
* @param colors The colors to mix
* @return The final output mixed color
*/
public static Color mixDyeColors(DyeColor... colors) {
Validate.noNullElements(colors, "No nulls allowed!");
final Color[] actualColors = new Color[colors.length];
for (int i = 0; i < colors.length; i++) {
actualColors[i] = colors[i].getColor();
}
return mixColors(actualColors);
}代码示例来源：origin: org.apache.commons/commons-lang3
@Test
public void testNoNullElementsCollection2() {
final List<String> coll = new ArrayList<>();
coll.add("a");
coll.add("b");
Validate.noNullElements(coll, "MSG");
try {
Validate.noNullElements((Collection<?>) null, "MSG");
fail("Expecting NullPointerException");
} catch (final NullPointerException ex) {
assertEquals("The validated object is null", ex.getMessage());
}
coll.set(1, null);
try {
Validate.noNullElements(coll, "MSG");
fail("Expecting IllegalArgumentException");
} catch (final IllegalArgumentException ex) {
assertEquals("MSG", ex.getMessage());
}
coll.set(1, "b");
final List<String> test = Validate.noNullElements(coll, "Message");
assertSame(coll, test);
}代码示例来源：origin: org.apache.commons/commons-lang3
@Test
public void testNoNullElementsCollection1() {
final List<String> coll = new ArrayList<>();
coll.add("a");
coll.add("b");
Validate.noNullElements(coll);
try {
Validate.noNullElements((Collection<?>) null);
fail("Expecting NullPointerException");
} catch (final NullPointerException ex) {
assertEquals("The validated object is null", ex.getMessage());
}
coll.set(1, null);
try {
Validate.noNullElements(coll);
fail("Expecting IllegalArgumentException");
} catch (final IllegalArgumentException ex) {
assertEquals("The validated collection contains null element at index: 1", ex.getMessage());
}
coll.set(1, "b");
final List<String> test = Validate.noNullElements(coll);
assertSame(coll, test);
}代码示例来源：origin: org.apache.commons/commons-lang3
@Test
public void testNoNullElementsArray1() {
String[] array = new String[]{"a", "b"};
Validate.noNullElements(array);
try {
Validate.noNullElements((Object[]) null);
fail("Expecting NullPointerException");
} catch (final NullPointerException ex) {
assertEquals("The validated object is null", ex.getMessage());
}
array[1] = null;
try {
Validate.noNullElements(array);
fail("Expecting IllegalArgumentException");
} catch (final IllegalArgumentException ex) {
assertEquals("The validated array contains null element at index: 1", ex.getMessage());
}
array = new String[]{"a", "b"};
final String[] test = Validate.noNullElements(array);
assertSame(array, test);
}代码示例来源：origin: org.apache.commons/commons-lang3
@Test
public void testNoNullElementsArray2() {
String[] array = new String[]{"a", "b"};
Validate.noNullElements(array, "MSG");
try {
Validate.noNullElements((Object[]) null, "MSG");
fail("Expecting NullPointerException");
} catch (final NullPointerException ex) {
assertEquals("The validated object is null", ex.getMessage());
}
array[1] = null;
try {
Validate.noNullElements(array, "MSG");
fail("Expecting IllegalArgumentException");
} catch (final IllegalArgumentException ex) {
assertEquals("MSG", ex.getMessage());
}
array = new String[]{"a", "b"};
final String[] test = Validate.noNullElements(array, "Message");
assertSame(array, test);
}代码示例来源：origin: SpongePowered/SpongeAPI
/**
* Creates a new {@link Color} combining the provided {@link Color}
* objects, their summation and average is taken into effect
* to properly mix the colors together.
*
* @param colors The colors to mix
* @return The final output mixed color
*/
public static Color mixColors(Color... colors) {
Validate.noNullElements(colors, "No null colors allowed!");
checkArgument(colors.length > 0, "Cannot have an empty color array!");
if (colors.length == 1) {
return colors[0];
}
int red = colors[0].getRed();
int green = colors[0].getGreen();
int blue = colors[0].getBlue();
for (int i = 1; i < colors.length; i++) {
red += colors[i].getRed();
green += colors[i].getGreen();
blue += colors[i].getBlue();
}
int averageRed = Math.round((float) red / colors.length);
int averageGreen = Math.round((float) green / colors.length);
int averageBlue = Math.round((float) blue / colors.length);
return ofRgb(averageRed, averageGreen, averageBlue);
}代码示例来源：origin: jamesagnew/hapi-fhir
/**
* Sets the resource providers for this server
*/
public void setResourceProviders(Collection<IResourceProvider> theProviders) {
Validate.noNullElements(theProviders, "theProviders must not contain any null elements");
myResourceProviders.clear();
if (theProviders != null) {
myResourceProviders.addAll(theProviders);
}
}代码示例来源：origin: jamesagnew/hapi-fhir
/**
* Sets the non-resource specific providers which implement method calls on this server
*
* @see #setResourceProviders(Collection)
*/
public void setProviders(Object... theProviders) {
Validate.noNullElements(theProviders, "theProviders must not contain any null elements");
myPlainProviders.clear();
if (theProviders != null) {
myPlainProviders.addAll(Arrays.asList(theProviders));
}
}代码示例来源：origin: jamesagnew/hapi-fhir
/**
* Sets (or clears) the list of interceptors
*
* @param theInterceptors The list of interceptors (may be null)
*/
public void setInterceptors(IServerInterceptor... theInterceptors) {
Validate.noNullElements(theInterceptors, "theInterceptors must not contain any null elements");
myInterceptors.clear();
if (theInterceptors != null) {
myInterceptors.addAll(Arrays.asList(theInterceptors));
}
}代码示例来源：origin: jamesagnew/hapi-fhir
/**
* Register a group of providers. These could be Resource Providers (classes implementing {@link IResourceProvider}) or "plain" providers, or a mixture of the two.
*
* @param theProviders a {@code Collection} of theProviders. The parameter could be null or an empty {@code Collection}
*/
public void registerProviders(Object... theProviders) {
Validate.noNullElements(theProviders);
registerProviders(Arrays.asList(theProviders));
}代码示例来源：origin: org.apache.commons/commons-lang3
@Test
public void testValidIndex_array() {
final Object[] array = new Object[2];
Validate.validIndex(array, 0);
Validate.validIndex(array, 1);
try {
Validate.validIndex(array, -1);
fail("Expecting IndexOutOfBoundsException");
} catch (final IndexOutOfBoundsException ex) {
assertEquals("The validated array index is invalid: -1", ex.getMessage());
}
try {
Validate.validIndex(array, 2);
fail("Expecting IndexOutOfBoundsException");
} catch (final IndexOutOfBoundsException ex) {
assertEquals("The validated array index is invalid: 2", ex.getMessage());
}
final String[] strArray = new String[]{"Hi"};
final String[] test = Validate.noNullElements(strArray);
assertSame(strArray, test);
}代码示例来源：origin: org.apache.commons/commons-lang3
@Test
public void testValidIndex_withMessage_array() {
final Object[] array = new Object[2];
Validate.validIndex(array, 0, "Broken: ");
Validate.validIndex(array, 1, "Broken: ");
try {
Validate.validIndex(array, -1, "Broken: ");
fail("Expecting IndexOutOfBoundsException");
} catch (final IndexOutOfBoundsException ex) {
assertEquals("Broken: ", ex.getMessage());
}
try {
Validate.validIndex(array, 2, "Broken: ");
fail("Expecting IndexOutOfBoundsException");
} catch (final IndexOutOfBoundsException ex) {
assertEquals("Broken: ", ex.getMessage());
}
final String[] strArray = new String[]{"Hi"};
final String[] test = Validate.noNullElements(strArray, "Message");
assertSame(strArray, test);
}内容来源于网络，如有侵权，请联系作者删除！
