/**
    * Copyright 2010-2012 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.spring;
  
  import java.io.File;
  
  import org.kuali.common.util.Artifact;
  import org.kuali.common.util.Assert;
  import org.kuali.common.util.LocationUtils;
  import org.kuali.common.util.RepositoryUtils;
  import org.springframework.beans.factory.FactoryBean;
  
  public class ArtifactPathFactoryBean extends Artifact implements FactoryBean<String> {
  
  	File localRepositoryDir = RepositoryUtils.getDefaultLocalRepositoryDir();
  	boolean mustExist;
  
  	@Override
  	public String getObject() throws Exception {
  
  		Assert.notNull(localRepositoryDir);
  		Assert.hasText(getGroupId());
  		Assert.hasText(getArtifactId());
  		Assert.hasText(getVersion());
  		Assert.hasText(getType());
  
  		File file = RepositoryUtils.getFile(localRepositoryDir, this);
  		validate(file);
  		return LocationUtils.getCanonicalPath(file);
  	}
  
  	protected void validate(File file) {
  		if (!file.exists() && mustExist) {
  			throw new IllegalStateException(file + " does not exist");
  		}
  	}
  
  	@Override
  	public Class<String> getObjectType() {
  		return String.class;
  	}
  
  	@Override
  	public boolean isSingleton() {
  		return false;
  	}
  
  	public File getLocalRepositoryDir() {
  		return localRepositoryDir;
  	}
  
  	public void setLocalRepositoryDir(File localRepositoryDir) {
  		this.localRepositoryDir = localRepositoryDir;
  	}
  
  	public boolean isMustExist() {
  		return mustExist;
  	}
  
  	public void setMustExist(boolean mustExist) {
  		this.mustExist = mustExist;
  	}
  
  }