Example usage for org.apache.commons.lang3 ArrayUtils toArray

List of usage examples for org.apache.commons.lang3 ArrayUtils toArray

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Introduction

In this page you can find the example usage for org.apache.commons.lang3 ArrayUtils toArray.

Prototype

public static <T> T[] toArray(final T... items)

Source Link

Document

Create a type-safe generic array.

The Java language does not allow an array to be created from a generic type:

 public static <T> T[] createAnArray(int size) { return new T[size]; // compiler error here } public static <T> T[] createAnArray(int size) { return (T[])new Object[size]; // ClassCastException at runtime }

Therefore new arrays of generic types can be created with this method.

Usage

From source file:cop.raml.processor.rest.AbstractRestImpl.java

protected static String[] defOnNull(String... mediaTypes) {
    if (mediaTypes != null) {
        Arrays.sort(mediaTypes);//  ww  w  . j  av  a2s . c o  m
        return mediaTypes;
    }

    String def = Config.get().apiMediaType();
    return def != null ? ArrayUtils.toArray(def) : null;
}

From source file:com.github.ibole.infrastructure.web.security.spring.shiro.config.ShiroConfig.java

@Bean
public MethodInvokingFactoryBean setSecurityManager(DefaultWebSecurityManager securityManager) {
    MethodInvokingFactoryBean methodInvokingFactoryBean = new MethodInvokingFactoryBean();
    methodInvokingFactoryBean.setStaticMethod("org.apache.shiro.SecurityUtils.setSecurityManager");
    methodInvokingFactoryBean.setArguments(ArrayUtils.toArray(securityManager));
    return methodInvokingFactoryBean;
}

From source file:com.feilong.core.bean.ConvertUtil.java

/**
 * ??./*from   www.  j  a  va 2 s .  co m*/
 * 
 * <h3>:</h3>
 * 
 * <blockquote>
 * 
 * <pre class="code">
 * String[] array = ConvertUtil.toArray("1", "2");                  =   ["1", "2"];
 * String[] emptyArray = ConvertUtil.{@code <String>}toArray();     =   [] ; //= new String[] {};
 * Integer[] emptyArray = ConvertUtil.{@code <Integer>}toArray();   =   [] ; //= new Integer[] {};
 * String[] nullArray = ConvertUtil.toArray(null)                   =   null;
 * 
 * </pre>
 * 
 * </blockquote>
 * 
 * <h3>?:</h3>
 * 
 * <blockquote>
 * <p>
 * (reified),?(erasure)<br>
 * ???,??,?,?,??
 * </p>
 * 
 * <b>:</b>
 * 
 * <ol>
 * <li>????raw type;  List{@code <E>}?List{@code <List<E>>}? List</li>
 * <li>????; List{@code <E>}[],? List[]</li>
 * <li>Raw type ,?, List{@code <E>} ? List</li>
 * <li>int,String  wrapper ?</li>
 * <li>? E,?,? Object</li>
 * <li>??{@code <? Extends E>}?{@code <X extends E>} ? E</li>
 * <li>?,?,{@code <T extends Object & E>},? Object</li>
 * </ol>
 * 
 * <p>
 * ??:
 * </p>
 * 
 * <pre class="code">
 * 
 * public static {@code <K, V>} Map<K, V[]> toArrayValueMap(Map{@code <K, V>} singleValueMap){
 *     Map{@code <K, V[]>} arrayValueMap = newLinkedHashMap(singleValueMap.size());//????singleValueMap??
 *     for (Map.Entry{@code <K, V>} entry : singleValueMap.entrySet()){
 *         arrayValueMap.put(entry.getKey(), toArray(entry.getValue()));//?Value???V,???Object
 *     }
 *     return arrayValueMap;
 * }
 * </pre>
 * 
 * ,
 * 
 * <pre class="code">
 * Map{@code <String, String>} singleValueMap = MapUtil.newLinkedHashMap(2);
 * singleValueMap.put("province", "??");
 * singleValueMap.put("city", "?");
 * 
 * Map{@code <String, String[]>} arrayValueMap = MapUtil.toArrayValueMap(singleValueMap);
 * String[] strings = arrayValueMap.get("province");// Object[]
 * </pre>
 * 
 * 
 * 
 * <pre class="code">
 * java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.String;
 * </pre>
 * 
 * </blockquote>
 *
 * @param <T>
 *            the generic type
 * @param arrays
 *            the arrays
 * @return  <code>arrays</code> null,null<br>
 * @see org.apache.commons.lang3.ArrayUtils#toArray(Object...)
 * @since commons-lang 3
 * @since 1.6.0
 */
@SafeVarargs
public static <T> T[] toArray(T... arrays) {
    return ArrayUtils.toArray(arrays);
}

From source file:org.evosuite.utils.generic.GenericField.java

@Override
public TypeVariable<?>[] getTypeParameters() {

    if (field.getGenericType() instanceof TypeVariable) {
        return ArrayUtils.toArray((TypeVariable<?>) field.getGenericType());
    } else {//from w  ww.  ja  v  a 2  s.co m
        return super.getTypeParameters();
    }
}

From source file:org.primeframework.mvc.parameter.convert.converters.BooleanConverterTest.java

@Test
public void fromStrings() {
    GlobalConverter converter = new BooleanConverter(new MockConfiguration());
    Boolean b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertNull(b);//ww  w .j a  va2 s .  c o m

    b = (Boolean) converter.convertFromStrings(Boolean.TYPE, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertFalse(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("true"));
    assertTrue(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("yes"));
    assertTrue(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("on"));
    assertTrue(b);

    b = (Boolean) converter.convertFromStrings(Boolean.TYPE, null, "testExpr", ArrayUtils.toArray("true"));
    assertTrue(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("false"));
    assertFalse(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("no"));
    assertFalse(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("off"));
    assertFalse(b);

    b = (Boolean) converter.convertFromStrings(Boolean.TYPE, null, "testExpr", ArrayUtils.toArray("false"));
    assertFalse(b);

    b = (Boolean) converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("   "));
    assertNull(b);

    b = (Boolean) converter.convertFromStrings(Boolean.TYPE, null, "testExpr", ArrayUtils.toArray("   "));
    assertFalse(b);

    Boolean[] ba = (Boolean[]) converter.convertFromStrings(Boolean[].class, null, "testExpr",
            ArrayUtils.toArray("true", "false"));
    assertTrue(ba[0]);
    assertFalse(ba[1]);

    boolean[] bpa = (boolean[]) converter.convertFromStrings(boolean[].class, null, "testExpr",
            ArrayUtils.toArray("true", "false"));
    assertTrue(bpa[0]);
    assertFalse(bpa[1]);

    try {
        converter.convertFromStrings(Boolean.class, null, "testExpr", ArrayUtils.toArray("fals3"));
        fail("Should have failed");
    } catch (ConversionException ce) {
        // Expected
    }
}

From source file:org.primeframework.mvc.parameter.convert.converters.CharacterConverterTest.java

@Test
public void fromStrings() {
    GlobalConverter converter = new CharacterConverter(new MockConfiguration());
    Character cw = (Character) converter.convertFromStrings(Character.class, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertNull(cw);//from w w w  . j  a v  a 2 s.  c  om

    char c = (Character) converter.convertFromStrings(Character.TYPE, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertEquals(c, '\u0000');

    cw = (Character) converter.convertFromStrings(Character.class, null, "testExpr", ArrayUtils.toArray("c"));
    assertEquals((char) cw, 'c');

    c = (Character) converter.convertFromStrings(Character.TYPE, null, "testExpr", ArrayUtils.toArray("c"));
    assertEquals(c, 'c');

    cw = (Character) converter.convertFromStrings(Character.class, null, "testExpr", ArrayUtils.toArray(" "));
    assertNull(cw);

    c = (Character) converter.convertFromStrings(Character.TYPE, null, "testExpr", ArrayUtils.toArray(" "));
    assertEquals(c, 0);

    Character[] ca = (Character[]) converter.convertFromStrings(Character[].class, null, "testExpr",
            ArrayUtils.toArray("c", "d"));
    assertEquals(ca[0], (Character) 'c');
    assertEquals(ca[1], (Character) 'd');

    char[] cpa = (char[]) converter.convertFromStrings(char[].class, null, "testExpr",
            ArrayUtils.toArray("c", "d"));
    assertEquals(cpa[0], 'c');
    assertEquals(cpa[1], 'd');

    try {
        converter.convertFromStrings(Character.class, null, "testExpr", ArrayUtils.toArray("bad"));
        fail("Should have failed");
    } catch (ConversionException ce) {
        // Expected
    }

    try {
        converter.convertFromStrings(Character.TYPE, null, "testExpr", ArrayUtils.toArray("bad"));
        fail("Should have failed");
    } catch (ConversionException ce) {
        // Expected
    }
}

From source file:org.primeframework.mvc.parameter.convert.converters.EnumConverterTest.java

@Test
public void fromStrings() {
    GlobalConverter converter = new EnumConverter(new MockConfiguration());
    TestEnum e = (TestEnum) converter.convertFromStrings(TestEnum.class, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertNull(e);//from  w w w . ja va2 s. co  m

    e = (TestEnum) converter.convertFromStrings(TestEnum.class, null, "testExpr", ArrayUtils.toArray("value1"));
    assertSame(e, TestEnum.value1);

    e = (TestEnum) converter.convertFromStrings(TestEnum.class, null, "testExpr", ArrayUtils.toArray("value2"));
    assertSame(e, TestEnum.value2);

    try {
        converter.convertFromStrings(TestEnum.class, null, "testExpr", ArrayUtils.toArray("value3"));
        fail("Should have thrown conversion exception");
    } catch (ConversionException e1) {
        // Expected
    }

    try {
        converter.convertFromStrings(TestEnum.class, null, "testExpr", ArrayUtils.toArray("value1", "value2"));
        fail("Should have failed");
    } catch (UnsupportedOperationException e1) {
        // Expected
    }
}

From source file:org.primeframework.mvc.parameter.convert.converters.FileConverterTest.java

/**
 * Test the conversion from Strings./*from   w  ww .  j a v a  2 s. c o m*/
 */
@Test
public void fromStrings() {
    Map<String, String> map = new HashMap<String, String>();
    GlobalConverter converter = new FileConverter();
    File f = (File) converter.convertFromStrings(File.class, map, "testExpr",
            ArrayUtils.toArray((String) null));
    assertNull(f);

    f = (File) converter.convertFromStrings(File.class, map, "testExpr", ArrayUtils.toArray(""));
    assertNull(f);

    f = (File) converter.convertFromStrings(File.class, map, "testExpr", ArrayUtils.toArray("/tmp"));
    assertEquals(f.getAbsolutePath(), "/tmp");

    f = (File) converter.convertFromStrings(File.class, map, "testExpr", ArrayUtils.toArray("/tmp", "prime"));
    assertEquals(f.getAbsolutePath(), "/tmp/prime");

    f = (File) converter.convertFromStrings(File.class, map, "testExpr", ArrayUtils.toArray("build.savant"));
    assertEquals(f.getAbsolutePath(), new File("build.savant").getAbsolutePath());

    File[] fa = (File[]) converter.convertFromStrings(File[].class, map, "testExpr",
            ArrayUtils.toArray("build.savant", "build.xml"));
    assertEquals(fa[0].getAbsolutePath(), new File("build.savant").getAbsolutePath());
    assertEquals(fa[1].getAbsolutePath(), new File("build.xml").getAbsolutePath());

    // Test parentDir
    map.put("parentDir", "/tmp");
    f = (File) converter.convertFromStrings(File.class, map, "testExpr", ArrayUtils.toArray("build.savant"));
    assertEquals(f.getAbsolutePath(), new File("/tmp/build.savant").getAbsolutePath());
}

From source file:org.primeframework.mvc.parameter.convert.converters.LocalDateConverterTest.java

@Test
public void fromStrings() {
    GlobalConverter converter = new LocalDateConverter(new MockConfiguration());
    LocalDate value = (LocalDate) converter.convertFromStrings(LocalDate.class, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertNull(value);/*from ww  w . j  av a  2  s  .com*/

    value = (LocalDate) converter.convertFromStrings(Locale.class,
            MapBuilder.asMap("dateTimeFormat", "MM-dd-yyyy"), "testExpr", ArrayUtils.toArray("07-08-2008"));
    assertEquals(value.getMonthValue(), 7);
    assertEquals(value.getDayOfMonth(), 8);
    assertEquals(value.getYear(), 2008);

    try {
        converter.convertFromStrings(Locale.class, MapBuilder.asMap("dateTimeFormat", "MM-dd-yyyy"), "testExpr",
                ArrayUtils.toArray("07/08/2008"));
        fail("Should have failed");
    } catch (ConversionException e) {
        // Expected
    }
}

From source file:org.primeframework.mvc.parameter.convert.converters.LocaleConverterTest.java

@Test
public void fromStrings() {
    GlobalConverter converter = new LocaleConverter();
    Locale locale = (Locale) converter.convertFromStrings(Locale.class, null, "testExpr",
            ArrayUtils.toArray((String) null));
    assertNull(locale);/*from w ww .j av  a2s.  c o m*/

    locale = (Locale) converter.convertFromStrings(Locale.class, null, "testExpr", ArrayUtils.toArray("en"));
    assertEquals(locale.getLanguage(), "en");

    locale = (Locale) converter.convertFromStrings(Locale.class, null, "testExpr", ArrayUtils.toArray("en_US"));
    assertEquals(locale.getLanguage(), "en");
    assertEquals(locale.getCountry(), "US");

    locale = (Locale) converter.convertFromStrings(Locale.class, null, "testExpr",
            ArrayUtils.toArray("en", "US"));
    assertEquals(locale.getLanguage(), "en");
    assertEquals(locale.getCountry(), "US");

    locale = (Locale) converter.convertFromStrings(Locale.class, null, "testExpr",
            ArrayUtils.toArray("en_US_UTF8"));
    assertEquals(locale.getLanguage(), "en");
    assertEquals(locale.getCountry(), "US");
    assertEquals(locale.getVariant(), "UTF8");

    locale = (Locale) converter.convertFromStrings(Locale.class, null, "testExpr",
            ArrayUtils.toArray("en", "US", "UTF8"));
    assertEquals(locale.getLanguage(), "en");
    assertEquals(locale.getCountry(), "US");
    assertEquals(locale.getVariant(), "UTF8");
}