etk/src/org/atriasoft/etk/util/ArraysTools.java

package org.atriasoft.etk.util;

import java.util.Arrays;
import java.util.List;

public class ArraysTools {
	public static <T> void fill(final T[] buffer, final T value) {
		if (buffer == null) {
			return;
		}
		Arrays.fill(buffer, value);
	}
	
	public static <T> void fill2(final float[][] buffer, final float value) {
		if (buffer == null) {
			return;
		}
		for (int iii = 0; iii < buffer.length; iii++) {
			for (int jjj = 0; jjj < buffer[iii].length; jjj++) {
				buffer[iii][jjj] = value;
			}
		}
	}
	
	public static <T> void fill2(final T[][] buffer, final T value) {
		if (buffer == null) {
			return;
		}
		for (int iii = 0; iii < buffer.length; iii++) {
			for (int jjj = 0; jjj < buffer[iii].length; jjj++) {
				buffer[iii][jjj] = value;
			}
		}
	}
	

	public static byte[] listByteToPrimitive(final List<Object> input) {
		byte[] out = new byte[input.size()];
		for(int iii=0; iii<input.size(); iii++) {
			out[iii] = (Byte)input.get(iii);
		}
		return out;
	}

	public static byte[] toPrimitive(final Byte[] input) {
		byte[] out = new byte[input.length];
		for(int iii=0; iii<input.length; iii++) {
			out[iii] = input[iii];
		}
		return out;
	}
	public static short[] listShortToPrimitive(final List<Object> input) {
		short[] out = new short[input.size()];
		for(int iii=0; iii<input.size(); iii++) {
			out[iii] = (Short)input.get(iii);
		}
		return out;
	}

	public short[] toPrimitive(final Short[] input) {
		short[] out = new short[input.length];
		for(int iii=0; iii<input.length; iii++) {
			out[iii] = input[iii];
		}
		return out;
	}
	public static int[] listIntegerToPrimitive(final List<Object> tmpp) {
		int[] out = new int[tmpp.size()];
		for(int iii=0; iii<tmpp.size(); iii++) {
			out[iii] = (Integer)tmpp.get(iii);
		}
		return out;
	}

	public static int[] toPrimitive(final Integer[] input) {
		int[] out = new int[input.length];
		for(int iii=0; iii<input.length; iii++) {
			out[iii] = input[iii];
		}
		return out;
	}
	public static long[] listLongToPrimitive(final List<Object> input) {
		long[] out = new long[input.size()];
		for(int iii=0; iii<input.size(); iii++) {
			out[iii] = (Long)input.get(iii);
		}
		return out;
	}

	public static long[] toPrimitive(final Long[] input) {
		long[] out = new long[input.length];
		for(int iii=0; iii<input.length; iii++) {
			out[iii] = input[iii];
		}
		return out;
	}
	public static boolean[] listBooleanToPrimitive(final List<Object> input) {
		boolean[] out = new boolean[input.size()];
		for(int iii=0; iii<input.size(); iii++) {
			out[iii] = (Boolean)input.get(iii);
		}
		return out;
	}
	public static double[] listDoubleToPrimitive(final List<Object> input) {
		double[] out = new double[input.size()];
		for(int iii=0; iii<input.size(); iii++) {
			out[iii] = (Double)input.get(iii);
		}
		return out;
	}
	public static float[] listFloatToPrimitive(final List<Object> input) {
		float[] out = new float[input.size()];
		for(int iii=0; iii<input.size(); iii++) {
			out[iii] = (Float)input.get(iii);
		}
		return out;
	}

	public static boolean[] toPrimitive(final boolean[] input) {
		boolean[] out = new boolean[input.length];
		for(int iii=0; iii<input.length; iii++) {
			out[iii] = input[iii];
		}
		return out;
	}

	private ArraysTools() {}

	public static Object listToPrimitiveAuto(final Class<?>type, final List<Object> value) {
		if (type == byte.class) {
			return ArraysTools.listByteToPrimitive(value);
		}
		if (type == short.class) {
			return ArraysTools.listShortToPrimitive(value);
		}
		if (type == int.class) {
			return ArraysTools.listIntegerToPrimitive(value);
		}
		if (type == long.class) {
			return ArraysTools.listLongToPrimitive(value);
		}
		if (type == boolean.class) {
			return ArraysTools.listBooleanToPrimitive(value);
		}
		if (type == float.class) {
			return ArraysTools.listFloatToPrimitive(value);
		}
		if (type == double.class) {
			return ArraysTools.listDoubleToPrimitive(value);
		}
		return null;
	}

	public static String primitivaArrayToSting(final Object value) {
		StringBuilder out = new StringBuilder();
		primitivaArrayToSting(value, out);
		return out.toString();
	}
	public static void primitivaArrayToSting(final Object value, StringBuilder out) {
		if (value instanceof byte[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		} else if (value instanceof short[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		} else if (value instanceof int[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		} else if (value instanceof long[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		} else if (value instanceof boolean[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		} else if (value instanceof float[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		} else if (value instanceof double[] tmp) {
			for (int iii = 0; iii< tmp.length; iii++) {
				if (iii != 0) {
					out.append(";");
				}
				out.append(tmp[iii]);
			}
		}
	}
}