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1 package cachingfilter;
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2
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3 import java.io.File;
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4 import java.io.IOException;
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5
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6 import java.io.File;
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7 import java.io.IOException;
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8 import org.slf4j.Logger;
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9 import org.slf4j.LoggerFactory;
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10
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11
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12 final class CachedFile implements CachedPage {
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13 private static final Logger logger = LoggerFactory.getLogger(CachedFile.class);
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14 private final File file;
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15
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16 CachedFile( File parent, String child ) {
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17 this.file = new File(parent,child);
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18 }
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19
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20 public String name() {
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21 return file.getName();
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22 }
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23
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24 public boolean exists() {
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25 return file.exists();
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26 }
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27
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28 public File lastFile() {
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29 return file;
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30 }
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31
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32 public File newFile() throws IOException {
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33 delete();
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34 if( !file.createNewFile() )
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35 throw new RuntimeException("couldn't create "+file);
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36 return file;
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37 }
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38
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39 public void deleteNewFile() {
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40 if( !delete() )
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41 throw new RuntimeException("couldn't delete "+file);
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42 }
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43
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44 public boolean delete() {
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45 return file.delete();
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46 }
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47
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48 public String toString() {
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49 return file.toString();
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50 }
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51
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52 }
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