/**
 * Copyright 2017 ZTE Corporation.
 *
 * Licensed 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.onap.workflow.activitiext.common;

import java.io.IOException;
import java.io.InputStream;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;



public class ToolUtil {
  private static final Logger logger = LoggerFactory.getLogger(ToolUtil.class);
  public static boolean isEmptyString(String val) {
    return ((val == null || "".equals(val)) ? true : false);
  }

  public static boolean isTrimedEmptyString(String val) {
    return ((val == null || "".equals(val.trim())) ? true : false);
  }

  public static boolean isTrimedEmptyArray(String[] val) {
    return ((val == null || val.length == 0) ? true : false);
  }
  
  /**
   * @param ins
   */
  public static void closeInputStream(InputStream ins) {
    if (ins != null) {
      try {
        ins.close();
      } catch (IOException e) {
        logger.info("Close InputStream failed.", e);
      }
    }
  }
}