2 * Copyright 2014-present Open Networking Foundation
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package io.atomix.utils.misc;
19 import com.google.common.base.MoreObjects;
20 import com.google.common.base.MoreObjects.ToStringHelper;
22 import java.lang.reflect.Array;
23 import java.util.Arrays;
26 * Helper to print Object[] length and hashCode.
28 public final class ArraySizeHashPrinter {
31 * Returns ByteArraySizeHashPrinter wrapping given short[].
33 * @param array arrays to wrap around
34 * @return ObjectArraySizeHashPrinter
36 public static ArraySizeHashPrinter of(byte[] array) {
37 return new ArraySizeHashPrinter(toObjectArray(array), byte[].class);
41 * Returns ByteArraySizeHashPrinter wrapping given short[].
43 * @param array arrays to wrap around
44 * @return ObjectArraySizeHashPrinter
46 public static ArraySizeHashPrinter of(short[] array) {
47 return new ArraySizeHashPrinter(toObjectArray(array), short[].class);
51 * Returns ByteArraySizeHashPrinter wrapping given int[].
53 * @param array arrays to wrap around
54 * @return ObjectArraySizeHashPrinter
56 public static ArraySizeHashPrinter of(int[] array) {
57 return new ArraySizeHashPrinter(toObjectArray(array), int[].class);
61 * Returns ByteArraySizeHashPrinter wrapping given long[].
63 * @param array arrays to wrap around
64 * @return ObjectArraySizeHashPrinter
66 public static ArraySizeHashPrinter of(long[] array) {
67 return new ArraySizeHashPrinter(toObjectArray(array), long[].class);
71 * Returns ByteArraySizeHashPrinter wrapping given float[].
73 * @param array arrays to wrap around
74 * @return ObjectArraySizeHashPrinter
76 public static ArraySizeHashPrinter of(float[] array) {
77 return new ArraySizeHashPrinter(toObjectArray(array), float[].class);
81 * Returns ByteArraySizeHashPrinter wrapping given double[].
83 * @param array arrays to wrap around
84 * @return ObjectArraySizeHashPrinter
86 public static ArraySizeHashPrinter of(double[] array) {
87 return new ArraySizeHashPrinter(toObjectArray(array), double[].class);
91 * Returns ByteArraySizeHashPrinter wrapping given boolean[].
93 * @param array arrays to wrap around
94 * @return ObjectArraySizeHashPrinter
96 public static ArraySizeHashPrinter of(boolean[] array) {
97 return new ArraySizeHashPrinter(toObjectArray(array), boolean[].class);
101 * Returns ByteArraySizeHashPrinter wrapping given Object[].
103 * @param array arrays to wrap around
104 * @return ObjectArraySizeHashPrinter
106 public static ArraySizeHashPrinter of(Object[] array) {
107 return new ArraySizeHashPrinter(array, Object[].class);
110 private static Object[] toObjectArray(Object val) {
114 if (val instanceof Object[]) {
115 return (Object[]) val;
117 int length = Array.getLength(val);
118 Object[] outputArray = new Object[length];
119 for (int i = 0; i < length; ++i) {
120 outputArray[i] = Array.get(val, i);
125 private final Object[] array;
126 private final Class<?> type;
128 public ArraySizeHashPrinter(Object[] array, Class<?> type) {
134 public String toString() {
135 ToStringHelper helper = MoreObjects.toStringHelper(type);
137 helper.add("length", array.length)
138 .add("hash", Arrays.hashCode(array));
140 helper.addValue(array);
142 return helper.toString();