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'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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 com.rapiddweller.common;

import java.util.Collection;

/**
 * Provides utility methods for threading.
 * Created: 26.03.2010 19:26:07
 *
 * @author Volker Bergmann
 * @since 0.5.0
 */
public class ThreadUtil {

  private ThreadUtil() {
  }

  /**
   * All thread safe boolean.
   *
   * @param       the type parameter
   * @param       the type parameter
   * @param elements the elements
   * @return the boolean
   */
  public static , T extends ThreadAware> boolean allThreadSafe(C elements) {
    for (ThreadAware element : elements) {
      if (!element.isThreadSafe()) {
        return false;
      }
    }
    return true;
  }

  /**
   * All thread safe boolean.
   *
   * @param       the type parameter
   * @param elements the elements
   * @return the boolean
   */
  public static  boolean allThreadSafe(T[] elements) {
    for (ThreadAware element : elements) {
      if (!element.isThreadSafe()) {
        return false;
      }
    }
    return true;
  }

  /**
   * All parallelizable boolean.
   *
   * @param       the type parameter
   * @param       the type parameter
   * @param elements the elements
   * @return the boolean
   */
  public static , T extends ThreadAware> boolean allParallelizable(C elements) {
    for (ThreadAware element : elements) {
      if (!element.isParallelizable()) {
        return false;
      }
    }
    return true;
  }

  /**
   * All parallelizable boolean.
   *
   * @param       the type parameter
   * @param elements the elements
   * @return the boolean
   */
  public static  boolean allParallelizable(T[] elements) {
    for (ThreadAware element : elements) {
      if (!element.isParallelizable()) {
        return false;
      }
    }
    return true;
  }

  /**
   * Current stack trace as string string.
   *
   * @return the string
   */
  public static String currentStackTraceAsString() {
    StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
    StringBuilder builder = new StringBuilder();
    builder.append("Current stack trace:").append(SystemInfo.LF);
    for (int i = 2; i < stackTrace.length; i++) {
      builder.append(stackTrace[i]).append(SystemInfo.LF);
    }
    return builder.toString();
  }

}