content: /*
   * 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 com.alibaba.compileflow.engine.core.builder.converter.parser.model;
  
  import com.alibaba.compileflow.engine.common.CompileFlowException;
  import com.alibaba.compileflow.engine.common.ErrorCode;
  
  import java.io.BufferedInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.net.URL;
  
  /**
   * @author yusu
   */
  public class UrlFlowStreamSource extends FlowStreamSource {
  
      private URL url;
  
      public static UrlFlowStreamSource of(String code, URL url) {
          UrlFlowStreamSource urlFlowStreamSource = new UrlFlowStreamSource();
          urlFlowStreamSource.setCode(code);
          urlFlowStreamSource.setUrl(url);
          return urlFlowStreamSource;
      }
  
      private void setUrl(URL url) {
          this.url = url;
      }
  
      @Override
      public InputStream getFlow() {
          try {
              return new BufferedInputStream(url.openStream());
          } catch (IOException e) {
              throw new CompileFlowException.ResourceException(
                      ErrorCode.CF_RESOURCE_004,
                      "Failed to open stream, code is " + getCode() + ", url is " + url,
                      e
              );
          }
      }
  
  }
  