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Lines 143-168
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| 143 |
actual.close(); |
143 |
actual.close(); |
| 144 |
} |
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} |
| 145 |
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| 146 |
private void ensureOpened() throws FileNotFoundException { |
146 |
/** |
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* Ensures the file has been opened. |
| 148 |
* |
| 149 |
* @return <code>true</code> if the file is already open or was successfully opened, <code>false</code> otherwise |
| 150 |
* @throws FileNotFoundException |
| 151 |
*/ |
| 152 |
private boolean ensureOpened() throws FileNotFoundException { |
| 147 |
if (actual != null) |
153 |
if (actual != null) |
| 148 |
return; |
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// has already been opened (may have been closed though) |
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return true; |
| 156 |
// first time we try reading it |
| 149 |
if (target == null) |
157 |
if (target == null) |
| 150 |
throw new FileNotFoundException(); |
158 |
// if the file does not exist, its location will be null |
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return false; |
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java.io.File targetFile = target.toFile(); |
| 161 |
if (!targetFile.isFile()) |
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// the file may have been deleted concurrently (or was out-of-sync) |
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return false; |
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// the file exists, we are happy |
| 151 |
actual = new FileInputStream(target.toFile()); |
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actual = new FileInputStream(target.toFile()); |
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return true; |
| 152 |
} |
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} |
| 153 |
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| 154 |
public int read() throws IOException { |
169 |
public int read() throws IOException { |
| 155 |
ensureOpened(); |
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if (!ensureOpened()) |
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return -1; |
| 156 |
return actual.read(); |
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return actual.read(); |
| 157 |
} |
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} |
| 158 |
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| 159 |
public int read(byte[] b, int off, int len) throws IOException { |
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public int read(byte[] b, int off, int len) throws IOException { |
| 160 |
ensureOpened(); |
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if (!ensureOpened()) |
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return -1; |
| 161 |
return actual.read(b, off, len); |
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return actual.read(b, off, len); |
| 162 |
} |
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} |
| 163 |
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| 164 |
public long skip(long n) throws IOException { |
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public long skip(long n) throws IOException { |
| 165 |
ensureOpened(); |
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if (!ensureOpened()) |
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return 0; |
| 166 |
return actual.skip(n); |
184 |
return actual.skip(n); |
| 167 |
} |
185 |
} |
| 168 |
} |
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} |
