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• CallableUtils.java

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org.sonarsource.dotnet.shared.CallableUtils Maven / Gradle / Ivy

/*
 * SonarSource :: .NET :: Shared library
 * Copyright (C) 2014-2024 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonarsource.dotnet.shared;

import java.util.concurrent.Callable;

public final class CallableUtils {
  private CallableUtils(){}

  public static Object lazy(Callable callable) {
    return new Object() {
      @Override
      public String toString() {
        try {
          Object result = callable.call();
          return result == null ? "null" : result.toString();
        } catch (Exception exception) {
          throw new LazyCallException("An error occurred when calling a lazy operation", exception);
        }
      }
    };
  }
}