content: /*******************************************************************************
   * Copyright 2017 Bstek
   *
   * 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 com.bstek.ureport.image;
  
  import com.bstek.ureport.Utils;
  import com.bstek.ureport.exception.ReportComputeException;
  import com.bstek.ureport.provider.image.ImageProvider;
  import org.springframework.context.ApplicationContext;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Collection;
  import java.util.logging.Logger;
  
  /**
   * @author
   * @since 3月20日
   */
  public class StaticImageProcessor implements ImageProcessor<String> {
  	private Logger log=Logger.getGlobal();
  	@Override
  	public InputStream getImage(String path) {
  		Collection<ImageProvider> imageProviders=Utils.getImageProviders();
  		ImageProvider targetImageProvider=null;
  		for(ImageProvider provider:imageProviders){
  			if(provider.support(path)){
  				targetImageProvider=provider;
  				break;
  			}
  		}
  		if(targetImageProvider==null){
  			throw new ReportComputeException("Unsupport image path :"+path);
  		}
  		try{
  			InputStream inputStream=targetImageProvider.getImage(path);
  			return inputStream;
  		}catch(Exception ex){
  			ApplicationContext applicationContext=Utils.getApplicationContext();
  			log.warning("Image ["+path+"] not exist,use default picture.");
  			String imageNotExistPath="classpath:com/bstek/ureport/image/image-not-exist.jpg";
  			try {
  				return applicationContext.getResource(imageNotExistPath).getInputStream();
  			} catch (IOException e1) {
  				throw new ReportComputeException(e1);
  			}
  		}
  	}
  }
  