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Kripton Persistence Library - core module
package com.abubusoft.kripton.common;
import java.util.Collection;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import com.abubusoft.kripton.exception.KriptonRuntimeException;
/**
* Utility to work with list and array Json conversion.
*
* @author Francesco Benincasa ([email protected])
*
*/
public class CollectionUtils {
/**
* create a collection set, with initial values.
* @param
*
* @param objects
* @return
*/
@SuppressWarnings("unchecked")
public static Set asSet(Class itemType, T... objects) {
LinkedHashSet result = new LinkedHashSet();
for (T item : objects) {
result.add(item);
}
return result;
}
public static > E asList(Byte[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Byte) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
//
public static > E asList(Boolean[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Boolean) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > E asList(Character[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Character) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
@SuppressWarnings("unchecked")
public static , T> E asList(T[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((T) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > E asList(Short[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Short) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > E asList(Integer[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Integer) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > List asList(Long[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Long) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > List asList(Float[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Float) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > List asList(Double[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((Double) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
//
public static > E asList(boolean[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((boolean) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > E asList(char[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((char) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > E asList(short[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((short) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > E asList(int[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((int) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > List asList(long[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((long) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > List asList(float[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((float) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static > List asList(double[] array, Class listType) {
E result;
try {
result = listType.newInstance();
for (Object item : array) {
result.add((double) item);
}
return result;
} catch (InstantiationException | IllegalAccessException e) {
e.printStackTrace();
throw (new KriptonRuntimeException(e.getMessage()));
}
}
public static boolean[] asBooleanTypeArray(List input) {
boolean[] result = new boolean[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static byte[] asByteTypeArray(List input) {
byte[] result = new byte[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static char[] asCharacterTypeArray(List input) {
char[] result = new char[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static short[] asShortTypeArray(List input) {
short[] result = new short[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static int[] asIntegerTypeArray(List input) {
int[] result = new int[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static long[] asLongTypeArray(List input) {
long[] result = new long[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static float[] asFloatTypeArray(List input) {
float[] result = new float[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static double[] asDoubleTypeArray(List input) {
double[] result = new double[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static String[] asStringArray(List input) {
String[] result = new String[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Boolean[] asBooleanArray(List input) {
Boolean[] result = new Boolean[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Byte[] asByteArray(List input) {
Byte[] result = new Byte[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Character[] asCharacterArray(List input) {
Character[] result = new Character[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Short[] asShortArray(List input) {
Short[] result = new Short[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Integer[] asIntegerArray(List input) {
Integer[] result = new Integer[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Long[] asLongArray(List input) {
Long[] result = new Long[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static E[] asArray(List input, E[] newArray) {
return input.toArray(newArray);
}
public static Float[] asFloatArray(List input) {
Float[] result = new Float[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
public static Double[] asDoubleArray(List input) {
Double[] result = new Double[input.size()];
for (int i = 0; i < result.length; i++) {
result[i] = input.get(i);
}
return result;
}
/**
* trim each element of lists.
*
* @param value
*/
public static void trim(List value) {
if (value==null) return;
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