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The Async Http Client (AHC) classes.

There is a newer version: 3.0.0

/*
 * Copyright (c) 2010-2012 Sonatype, Inc. All rights reserved.
 *
 * This program is licensed to you under the Apache License Version 2.0,
 * and you may not use this file except in compliance with the Apache License Version 2.0.
 * You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the Apache License Version 2.0 is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
 */
package org.asynchttpclient.util;

import java.io.Closeable;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;

public class MiscUtils {

  private MiscUtils() {
  }

  public static boolean isNonEmpty(String string) {
    return !isEmpty(string);
  }

  public static boolean isEmpty(String string) {
    return string == null || string.isEmpty();
  }

  public static boolean isNonEmpty(Object[] array) {
    return array != null && array.length != 0;
  }

  public static boolean isNonEmpty(byte[] array) {
    return array != null && array.length != 0;
  }

  public static boolean isNonEmpty(Collection collection) {
    return collection != null && !collection.isEmpty();
  }

  public static boolean isNonEmpty(Map map) {
    return map != null && !map.isEmpty();
  }

  public static  T withDefault(T value, T def) {
    return value == null ? def : value;
  }

  public static void closeSilently(Closeable closeable) {
    if (closeable != null)
      try {
        closeable.close();
      } catch (IOException e) {
        //
      }
  }

  public static Throwable getCause(Throwable t) {
    Throwable cause = t.getCause();
    return cause != null ? getCause(cause) : t;
  }
}