Android Open Source - sms-smap-gateway Operation

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Back to project page sms-smap-gateway.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.android.smap.ui;
//  w w w. ja va  2 s.  co  m
import android.util.Log;
import android.view.View;

/**
 * 
 * @author Bradley Curren
 * 
 *         Green Gear Library https://github.com/bradley-curran/GreenGear
 * @param <T>
 */
abstract class Operation<T extends View> {

  private static final String  TAG  = Operation.class.getSimpleName();
  /** Variable to store the type */
  private final Class<T>    mClass;

  Operation(Class<T> cls) {
    mClass = cls;
  }

  void run(View view) {
    T t = get(view, mClass);

    if (t != null) {
      execute(t);
    }
  }

  /**
   * Execute the view operation
   * 
   * @param view
   */
  abstract void execute(T view);

  /**
   * Cast the view to the given type.
   * 
   * @param view
   * @param cls
   * @return null if the view is null or the view cannot be casted
   */
  static <T extends View> T get(View view, Class<T> cls) {
    if (view == null) {
      Log.e(TAG, "View is null, cannot perform " + cls.getSimpleName());
      return null;
    }

    if (!cls.isInstance(view)) {
      Log.e(TAG, "View is not a " + cls.getSimpleName());
      return null;
    }

    return cls.cast(view);
  }
}

Java Source Code List

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