/**
    * Copyright 2010-2014 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.common.util.xml.jaxb.adapter;
  
  import javax.xml.bind.annotation.adapters.XmlAdapter;
  
  import org.kuali.common.util.Assert;
  import org.kuali.common.util.Str;
  
  public final class FlattenStringAdapter extends XmlAdapter<String, String> {
  
  	public FlattenStringAdapter() {
  		this(FlattenConstants.DEFAULT_CR_REPLACEMENT, FlattenConstants.DEFAULT_LF_REPLACEMENT);
  	}
  
  	public FlattenStringAdapter(String carriageReturnReplacement, String linefeedReplacement) {
  		// No blanks because this needs to work in both directions (flatten + inflate)
  		Assert.noBlanks(carriageReturnReplacement, linefeedReplacement);
  		this.carriageReturnReplacement = carriageReturnReplacement;
  		this.linefeedReplacement = linefeedReplacement;
  	}
  
  	private final String carriageReturnReplacement;
  	private final String linefeedReplacement;
  
  	@Override
  	public String marshal(String string) {
  		if (string != null) {
  			return Str.flatten(string, carriageReturnReplacement, linefeedReplacement);
  		} else {
  			return null;
  		}
  	}
  
  	@Override
  	public String unmarshal(String value) {
  		if (value == null) {
  			return null;
  		} else {
  			return Str.inflate(value, carriageReturnReplacement, linefeedReplacement);
  		}
  	}
  
  	public String getCarriageReturnReplacement() {
  		return carriageReturnReplacement;
  	}
  
  	public String getLinefeedReplacement() {
  		return linefeedReplacement;
  	}
  
  }