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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.
* ====================================================================
*
* 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;
import java.util.Collection;
public class Args {
public static void check(final boolean expression, final String message) {
if (!expression) {
throw new IllegalArgumentException(message);
}
}
public static void check(final boolean expression, final String message, final Object... args) {
if (!expression) {
throw new IllegalArgumentException(String.format(message, args));
}
}
public static <T> T notNull(final T argument, final String name) {
if (argument == null) {
throw new IllegalArgumentException(name + " may not be null");
}
return argument;
}
public static <T extends CharSequence> T notEmpty(final T argument, final String name) {
if (argument == null) {
throw new IllegalArgumentException(name + " may not be null");
}
if (TextUtils.isEmpty(argument)) {
throw new IllegalArgumentException(name + " may not be empty");
}
return argument;
}
public static <T extends CharSequence> T notBlank(final T argument, final String name) {
if (argument == null) {
throw new IllegalArgumentException(name + " may not be null");
}
if (TextUtils.isBlank(argument)) {
throw new IllegalArgumentException(name + " may not be blank");
}
return argument;
}
public static <E, T extends Collection<E>> T notEmpty(final T argument, final String name) {
if (argument == null) {
throw new IllegalArgumentException(name + " may not be null");
}
if (argument.isEmpty()) {
throw new IllegalArgumentException(name + " may not be empty");
}
return argument;
}
public static int positive(final int n, final String name) {
if (n <= 0) {
throw new IllegalArgumentException(name + " may not be negative or zero");
}
return n;
}
public static long positive(final long n, final String name) {
if (n <= 0) {
throw new IllegalArgumentException(name + " may not be negative or zero");
}
return n;
}
public static int notNegative(final int n, final String name) {
if (n < 0) {
throw new IllegalArgumentException(name + " may not be negative");
}
return n;
}
public static long notNegative(final long n, final String name) {
if (n < 0) {
throw new IllegalArgumentException(name + " may not be negative");
}
return n;
}
}
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