package org.rapidoid.commons; import org.rapidoid.RapidoidThing; import org.rapidoid.annotation.Authors; import org.rapidoid.annotation.Since; import org.rapidoid.u.U; import java.util.Arrays; /* * #%L * rapidoid-commons * %% * Copyright (C) 2014 - 2017 Nikolche Mihajlovski and contributors * %% * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * #L% */ @Authors("Nikolche Mihajlovski") @Since("2.0.0") public class Arr extends RapidoidThing { /* indexOf */ public static int indexOf(Object[] arr, Object value) { for (int i = 0; i < arr.length; i++) { if (U.eq(arr[i], value)) { return i; } } return -1; } public static int indexOf(boolean[] arr, boolean value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } public static int indexOf(byte[] arr, byte value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } public static int indexOf(char[] arr, char value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } public static int indexOf(int[] arr, int value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } public static int indexOf(long[] arr, long value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } public static int indexOf(float[] arr, float value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } public static int indexOf(double[] arr, double value) { for (int i = 0; i < arr.length; i++) { if (arr[i] == value) { return i; } } return -1; } /* contains */ public static <T> boolean contains(T[] arr, T value) { return indexOf(arr, value) >= 0; } public static boolean contains(boolean[] arr, boolean value) { return indexOf(arr, value) >= 0; } public static boolean contains(byte[] arr, byte value) { return indexOf(arr, value) >= 0; } public static boolean contains(char[] arr, char value) { return indexOf(arr, value) >= 0; } public static boolean contains(int[] arr, int value) { return indexOf(arr, value) >= 0; } public static boolean contains(long[] arr, long value) { return indexOf(arr, value) >= 0; } public static boolean contains(float[] arr, float value) { return indexOf(arr, value) >= 0; } public static boolean contains(double[] arr, double value) { return indexOf(arr, value) >= 0; } /* containsAny */ public static <T> boolean containsAny(T[] arr, Iterable<? extends T> values) { for (T value : values) { if (contains(arr, value)) return true; } return false; } /* sub */ public static <T> T[] sub(T[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static boolean[] sub(boolean[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static byte[] sub(byte[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static char[] sub(char[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static int[] sub(int[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static long[] sub(long[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static float[] sub(float[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } public static double[] sub(double[] arr, int from, int to) { int start = from >= 0 ? from : arr.length + from; int end = to >= 0 ? to : arr.length + to; return Arrays.copyOfRange(arr, start, end); } /* concat */ public static <T> T[] concat(T[] left, T... right) { T[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static boolean[] concat(boolean[] left, boolean... right) { boolean[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static byte[] concat(byte[] left, byte... right) { byte[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static char[] concat(char[] left, char... right) { char[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static int[] concat(int[] left, int... right) { int[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static long[] concat(long[] left, long... right) { long[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static float[] concat(float[] left, float... right) { float[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } public static double[] concat(double[] left, double... right) { double[] concatenated = Arrays.copyOf(left, left.length + right.length); System.arraycopy(right, 0, concatenated, left.length, right.length); return concatenated; } /* merge */ public static Object[] merge(Object[]... arrays) { int size = 0; for (Object[] arr : arrays) size += arr.length; Object[] concat = new Object[size]; int destPos = 0; for (Object[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static boolean[] merge(boolean[]... arrays) { int size = 0; for (boolean[] arr : arrays) size += arr.length; boolean[] concat = new boolean[size]; int destPos = 0; for (boolean[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static byte[] merge(byte[]... arrays) { int size = 0; for (byte[] arr : arrays) size += arr.length; byte[] concat = new byte[size]; int destPos = 0; for (byte[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static char[] merge(char[]... arrays) { int size = 0; for (char[] arr : arrays) size += arr.length; char[] concat = new char[size]; int destPos = 0; for (char[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static int[] merge(int[]... arrays) { int size = 0; for (int[] arr : arrays) size += arr.length; int[] concat = new int[size]; int destPos = 0; for (int[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static long[] merge(long[]... arrays) { int size = 0; for (long[] arr : arrays) size += arr.length; long[] concat = new long[size]; int destPos = 0; for (long[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static float[] merge(float[]... arrays) { int size = 0; for (float[] arr : arrays) size += arr.length; float[] concat = new float[size]; int destPos = 0; for (float[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } public static double[] merge(double[]... arrays) { int size = 0; for (double[] arr : arrays) size += arr.length; double[] concat = new double[size]; int destPos = 0; for (double[] src : arrays) { System.arraycopy(src, 0, concat, destPos, src.length); destPos += src.length; } return concat; } /* split */ public static <T> void split(T[] src, T[]... parts) { int srcPos = 0; for (T[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(boolean[] src, boolean[]... parts) { int srcPos = 0; for (boolean[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(byte[] src, byte[]... parts) { int srcPos = 0; for (byte[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(char[] src, char[]... parts) { int srcPos = 0; for (char[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(int[] src, int[]... parts) { int srcPos = 0; for (int[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(long[] src, long[]... parts) { int srcPos = 0; for (long[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(float[] src, float[]... parts) { int srcPos = 0; for (float[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } public static void split(double[] src, double[]... parts) { int srcPos = 0; for (double[] dest : parts) { System.arraycopy(src, srcPos, dest, 0, dest.length); srcPos += dest.length; } } }