Android Open Source - FirstTipCalc Valid Text Utils

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License

The source code is released under:

Apache License

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Java Source Code

/**
 * Copyright 2014 ReliQ Artz// ww w  . ja v  a2  s.  c  o m
 *
 * 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.reliqartz.firsttipcalc.utils;

import android.util.Log;

/**
 * Set of utilities for text validation.
 * @author Patrick Reid
 */
public class ValidTextUtils {
  public static final String TAG = "ValidTextUtils";
  
  /**
   * Check whether a ratio is valid.
   * @param   ratio  The string containing the proposed ratio.
   * @param   split  The amount of shares the ratio should be split in. 
   *       Pass less than 2 to avoid checking shares. 
   * @return   Whether ratio is valid for required shares.
   */
  public static boolean validRatio(String ratio, int split) {
    boolean result =  false;
    if (ratio.matches("^[0-9][0-9]*:[[0-9]:]*[0-9]*[0-9]$")) {
      Log.v(TAG, "Checking ratio " + ratio + " results follow...");
      Log.i(TAG, "RATIO PATTERN MATCHED");
      if (split > 1) {
        String[] ratios = ratio.split(":");
        if (ratios.length == split) {
          Log.i(TAG, "RATIO IS VALID, hoorah!");
          result = true;
        } else {
          Log.w(TAG, "INVALID AMOUNT OF SHARES, RATIO INVALID");
        }
      } else {
        result = true;
      }
    } else {
      Log.w(TAG, "INVALID RATIO");
    }
    return result;
  }
}

Java Source Code List