br.com.objectos.way.ui.AbstractEntityRegex Maven / Gradle / Ivy

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/*
 * Copyright 2012 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.way.ui;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @author [email protected] (Marcio Endo)
 */
public abstract class AbstractEntityRegex {

  private final T value;

  public AbstractEntityRegex(String uri) {
    T value = newDefaultValue();

    Pattern pattern = getPattern();
    Matcher matcher = pattern.matcher(uri);

    if (matcher.matches()) {
      value = parseValue(matcher);
    }

    this.value = value;
  }

  public final T get() {
    return value;
  }

  protected abstract Pattern getPattern();

  protected abstract T newDefaultValue();

  protected abstract T parseValue(Matcher matcher);

}