jp.co.yahoo.yosegi.message.design.Properties Maven / Gradle / Ivy

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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 jp.co.yahoo.yosegi.message.design;

import jp.co.yahoo.yosegi.util.FindClass;

import java.io.IOException;
import java.io.Serializable;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class Properties implements Serializable {

  private final Map settingContainer;

  public Properties() {
    settingContainer = new HashMap();
  }

  public Properties( final Map settingContainer ) {
    this.settingContainer = settingContainer;
  }

  public void set( final String key , final String value ) {
    settingContainer.put( key , value );
  }

  /**
   * Convert this object to Map object.
   */
  public Map toMap() {
    Map retVal = new HashMap();
    for ( Map.Entry entry : settingContainer.entrySet() ) {
      retVal.put( new String( entry.getKey() ) , new String( entry.getValue() ) );
    }
    return retVal;
  }

  public Set getKey() {
    return settingContainer.keySet();
  }

  public String get( final String key ) {
    return get( key , null );
  }

  /**
   * Gets the value of the specified key as String.
   */
  public String get( final String key , final String defaultValue ) {
    String retVal = settingContainer.get( key );
    if ( retVal == null ) {
      return defaultValue;
    }
    return retVal;
  }

  public int getInt( final String key ) {
    return Integer.parseInt( settingContainer.get( key ) );
  }

  /**
   * Gets the value of the specified key as Int.
   */
  public int getInt( final String key , final int defaultValue ) {
    String target = settingContainer.get( key );
    if ( target == null ) {
      return defaultValue;
    }
    return Integer.parseInt( target );
  }

  public long getLong( final String key ) {
    return Long.parseLong( settingContainer.get( key ) );
  }

  /**
   * Gets the value of the specified key as Long.
   */
  public long getLong( final String key , final long defaultValue ) {
    String target = settingContainer.get( key );
    if ( target == null ) {
      return defaultValue;
    }
    return Long.parseLong( target );
  }

  public double getDouble( final String key ) {
    return Double.parseDouble( settingContainer.get( key ) );
  }

  /**
   * Gets the value of the specified key as Double.
   */
  public double getDouble( final String key , final double defaultValue ) {
    String target = settingContainer.get( key );
    if ( target == null ) {
      return defaultValue;
    }
    return Double.parseDouble( target );
  }

  public boolean containsKey( final String key ) throws IOException {
    return settingContainer.containsKey( key );
  }

  /**
   * On the premise that value is a class name, create and acquire a new object.
   */
  public Object getObject( final String key ) throws IOException {
    return getObject( key , settingContainer.get( key ) );
  }

  /**
   * On the premise that value is a class name, create and acquire a new object.
   */
  public Object getObject( final String key , final String defaultValue ) throws IOException {
    String targetClassName = settingContainer.get( key );
    if ( targetClassName == null || targetClassName.isEmpty() ) {
      targetClassName = defaultValue;
    }
    return FindClass.getObject( targetClassName );
  }

  @Override
  public String toString() {
    return settingContainer.toString();
  }

}