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/*
* 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.
*/
package org.apache.sshd.common.util;
import java.util.Collection;
import java.util.Map;
import java.util.function.Function;
/**
* @author Apache MINA SSHD Project
*/
public final class ValidateUtils {
private ValidateUtils() {
throw new UnsupportedOperationException("No instance");
}
public static T checkNotNull(T t, String message) {
checkTrue(t != null, message);
return t;
}
public static T checkNotNull(T t, String message, Object arg) {
checkTrue(t != null, message, arg);
return t;
}
public static T checkNotNull(T t, String message, long value) {
checkTrue(t != null, message, value);
return t;
}
public static T checkNotNull(T t, String message, Object... args) {
checkTrue(t != null, message, args);
return t;
}
public static String checkNotNullAndNotEmpty(String t, String message) {
t = checkNotNull(t, message).trim();
checkTrue(GenericUtils.length(t) > 0, message);
return t;
}
public static String checkNotNullAndNotEmpty(String t, String message, Object arg) {
t = checkNotNull(t, message, arg).trim();
checkTrue(GenericUtils.length(t) > 0, message, arg);
return t;
}
public static String checkNotNullAndNotEmpty(String t, String message, Object... args) {
t = checkNotNull(t, message, args).trim();
checkTrue(GenericUtils.length(t) > 0, message, args);
return t;
}
public static > M checkNotNullAndNotEmpty(M t, String message, Object... args) {
checkNotNull(t, message, args);
checkTrue(MapEntryUtils.size(t) > 0, message, args);
return t;
}
public static > C checkNotNullAndNotEmpty(C t, String message, Object... args) {
checkNotNull(t, message, args);
checkTrue(GenericUtils.size(t) > 0, message, args);
return t;
}
public static > C checkNotNullAndNotEmpty(C t, String message, Object... args) {
checkNotNull(t, message, args);
checkTrue(GenericUtils.isNotEmpty(t), message, args);
return t;
}
public static byte[] checkNotNullAndNotEmpty(byte[] a, String message) {
checkNotNull(a, message);
checkTrue(NumberUtils.length(a) > 0, message);
return a;
}
public static byte[] checkNotNullAndNotEmpty(byte[] a, String message, Object... args) {
checkNotNull(a, message, args);
checkTrue(NumberUtils.length(a) > 0, message, args);
return a;
}
public static char[] checkNotNullAndNotEmpty(char[] a, String message) {
checkNotNull(a, message);
checkTrue(GenericUtils.length(a) > 0, message);
return a;
}
public static char[] checkNotNullAndNotEmpty(char[] a, String message, Object... args) {
checkNotNull(a, message, args);
checkTrue(GenericUtils.length(a) > 0, message, args);
return a;
}
public static int[] checkNotNullAndNotEmpty(int[] a, String message) {
checkNotNull(a, message);
checkTrue(NumberUtils.length(a) > 0, message);
return a;
}
public static int[] checkNotNullAndNotEmpty(int[] a, String message, Object... args) {
checkNotNull(a, message, args);
checkTrue(NumberUtils.length(a) > 0, message, args);
return a;
}
public static T[] checkNotNullAndNotEmpty(T[] t, String message, Object... args) {
checkNotNull(t, message, args);
checkTrue(GenericUtils.length(t) > 0, message, args);
return t;
}
public static T checkInstanceOf(Object v, Class expected, String message, long value) {
Class actual = checkNotNull(v, message, value).getClass();
checkTrue(expected.isAssignableFrom(actual), message, value);
return expected.cast(v);
}
public static T checkInstanceOf(Object v, Class expected, String message) {
return checkInstanceOf(v, expected, message, GenericUtils.EMPTY_OBJECT_ARRAY);
}
public static T checkInstanceOf(Object v, Class expected, String message, Object arg) {
Class actual = checkNotNull(v, message, arg).getClass();
checkTrue(expected.isAssignableFrom(actual), message, arg);
return expected.cast(v);
}
public static T checkInstanceOf(Object v, Class expected, String message, Object... args) {
Class actual = checkNotNull(v, message, args).getClass();
checkTrue(expected.isAssignableFrom(actual), message, args);
return expected.cast(v);
}
public static void checkTrue(boolean flag, String message) {
if (!flag) {
throwIllegalArgumentException(message, GenericUtils.EMPTY_OBJECT_ARRAY);
}
}
public static void checkTrue(boolean flag, String message, long value) {
if (!flag) {
throwIllegalArgumentException(message, value);
}
}
public static void checkTrue(boolean flag, String message, Object arg) {
if (!flag) {
throwIllegalArgumentException(message, arg);
}
}
public static void checkTrue(boolean flag, String message, Object... args) {
if (!flag) {
throwIllegalArgumentException(message, args);
}
}
public static void throwIllegalArgumentException(String format, Object... args) {
throw createFormattedException(IllegalArgumentException::new, format, args);
}
public static void checkState(boolean flag, String message) {
if (!flag) {
throwIllegalStateException(message, GenericUtils.EMPTY_OBJECT_ARRAY);
}
}
public static void checkState(boolean flag, String message, long value) {
if (!flag) {
throwIllegalStateException(message, value);
}
}
public static void checkState(boolean flag, String message, Object arg) {
if (!flag) {
throwIllegalStateException(message, arg);
}
}
public static void checkState(boolean flag, String message, Object... args) {
if (!flag) {
throwIllegalStateException(message, args);
}
}
public static void throwIllegalStateException(String format, Object... args) {
throw createFormattedException(IllegalStateException::new, format, args);
}
public static T createFormattedException(
Function constructor, String format, Object... args) {
String message = String.format(format, args);
return constructor.apply(message);
}
public static T initializeExceptionCause(T err, Throwable cause) {
if (cause == null) {
return err;
}
if (err.getCause() != null) {
return err; // already initialized - avoid IllegalStateException
}
err.initCause(cause);
return err;
}
}