/src/org/ooc/backend/CachedFileWriter.java

 1package org.ooc.backend;
 2
 3import java.io.File;
 4import java.io.IOException;
 5import java.io.StringWriter;
 6
 7import org.ooc.utils.FileUtils;
 8
 9public class CachedFileWriter extends StringWriter {
10
11	private File file;
12
13	public CachedFileWriter(File file) {
14		super();
15		this.file = file;
16	}
17
18	@Override
19	public void close() throws IOException {
20		String thisContent = toString();
21		
22		if(!file.exists()) {
23			FileUtils.write(file, thisContent);
24		} else {		
25			String fileContent = FileUtils.read(file);
26			if(!fileContent.equals(thisContent)) {
27				FileUtils.write(file, thisContent);
28			}
29		}
30		
31		super.close();
32	}
33	
34}