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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/LangUtils.java
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/LangUtils.java')
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diff --git a/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/LangUtils.java b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/LangUtils.java
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+++ b/mobile/android/thirdparty/ch/boye/httpclientandroidlib/util/LangUtils.java
@@ -0,0 +1,101 @@
+/*
+ * ====================================================================
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ *
+ */
+
+package ch.boye.httpclientandroidlib.util;
+
+/**
+ * A set of utility methods to help produce consistent
+ * {@link Object#equals equals} and {@link Object#hashCode hashCode} methods.
+ *
+ *
+ * @since 4.0
+ */
+public final class LangUtils {
+
+ public static final int HASH_SEED = 17;
+ public static final int HASH_OFFSET = 37;
+
+ /** Disabled default constructor. */
+ private LangUtils() {
+ }
+
+ public static int hashCode(final int seed, final int hashcode) {
+ return seed * HASH_OFFSET + hashcode;
+ }
+
+ public static int hashCode(final int seed, final boolean b) {
+ return hashCode(seed, b ? 1 : 0);
+ }
+
+ public static int hashCode(final int seed, final Object obj) {
+ return hashCode(seed, obj != null ? obj.hashCode() : 0);
+ }
+
+ /**
+ * Check if two objects are equal.
+ *
+ * @param obj1 first object to compare, may be {@code null}
+ * @param obj2 second object to compare, may be {@code null}
+ * @return {@code true} if the objects are equal or both null
+ */
+ public static boolean equals(final Object obj1, final Object obj2) {
+ return obj1 == null ? obj2 == null : obj1.equals(obj2);
+ }
+
+ /**
+ * Check if two object arrays are equal.
+ * <p>
+ * <ul>
+ * <li>If both parameters are null, return {@code true}</li>
+ * <li>If one parameter is null, return {@code false}</li>
+ * <li>If the array lengths are different, return {@code false}</li>
+ * <li>Compare array elements using .equals(); return {@code false} if any comparisons fail.</li>
+ * <li>Return {@code true}</li>
+ * </ul>
+ *
+ * @param a1 first array to compare, may be {@code null}
+ * @param a2 second array to compare, may be {@code null}
+ * @return {@code true} if the arrays are equal or both null
+ */
+ public static boolean equals(final Object[] a1, final Object[] a2) {
+ if (a1 == null) {
+ return a2 == null;
+ } else {
+ if (a2 != null && a1.length == a2.length) {
+ for (int i = 0; i < a1.length; i++) {
+ if (!equals(a1[i], a2[i])) {
+ return false;
+ }
+ }
+ return true;
+ } else {
+ return false;
+ }
+ }
+ }
+
+}