cz/vutbr/fit/dudka/SGVis/Lookup/SimpleDownloader.java

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package cz.vutbr.fit.dudka.SGVis.Lookup;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;


public class SimpleDownloader {
  private int maxLength = 1 << 20;
  
  public String download(URL url) throws IOException {
    // Create connection object (next line do not connect immediately)
    URLConnection conn = url.openConnection();
    
    // Create reader
    BufferedReader reader = 
      new BufferedReader(new InputStreamReader(conn.getInputStream()));
    
    // Read content line after line
    StringBuffer buff = new StringBuffer();
    String inputLine;
    while (       
          buff.length()<maxLength &&
          null!= (inputLine = reader.readLine()))
      buff.append(inputLine);
    
    // close reader
        reader.close();
        
        // truncate unwanted content
        if (buff.length()>maxLength)
          buff.setLength(maxLength);
        
        // return content as string
    return buff.toString();
  }
  public int getMaxLength() {
    return maxLength;
  }
  public void setMaxLength(int maxLength) {
    this.maxLength = maxLength;
  }
}

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