/**
 * Copyright 2016 ZTE Corporation.
 *
 * 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 org.openo.carbon.bpel.config;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Properties;

import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.Logger;

public abstract class AbstractBpsProperties {
  private static final Logger dmsg = Logger.getLogger(AbstractBpsProperties.class.getName());
  private Properties properties;

  protected AbstractBpsProperties() {
    properties = new Properties();
    /*
     * URL commonConfigURL = AbstractBpsProperties.class.getResource(getConfigName()); if
     * (commonConfigURL != null) { try { properties.load(new FileInputStream(new
     * File(commonConfigURL.getFile()))); } catch (IOException e) { dmsg.error(e.getMessage(), e); }
     * }
     */

    File propertyFile = new File(getConfigName());
    try {
      if (propertyFile != null) {
        properties.load(this.getClass().getResourceAsStream("/" + propertyFile.getName()));
      }
    } catch (FileNotFoundException e) {
      dmsg.error(e.getMessage(), e);
    } catch (Exception e) {
      dmsg.error(e.getMessage(), e);
    }

  }

  protected abstract String getConfigName();

  public String getProperty(String propertyName) {
    String value = properties.getProperty(propertyName);
    return StringUtils.trimToEmpty(value);
  }
}