/**
* Creates a new file within the state location of this plugin and writes the given content to it.
* If the file already exists, it is overwritten.<br>
* The naming scheme for the temporary file is "<em>baseName</em>.<em>type</em>".
*
* @param fileName filename for the temporary file, must not contain any path segments, never
* null.
* @param content the content to write to the file, never null.
* @return <em>true</em> on success, <em>false</em> on failure.
*/
public static boolean storeTemporaryFile(String fileName, String type, String content) {
if (log.isTraceEnabled())
log.trace(
"storeTemporaryFile() - fileName: "
+ fileName
+ ", type:"
+ type
+ ", content: "
+ CoreStringUtils.truncateString(content));
assert (fileName != null && content != null && type != null);
IPath stateLoc = CPCStoreRemoteLMIPlugin.getDefault().getStateLocation().makeAbsolute();
stateLoc.append("temp");
File tmpFile = new File(stateLoc.toString(), fileName + "." + type);
try {
BufferedWriter bw = new BufferedWriter(new FileWriter(tmpFile));
bw.write(content);
bw.close();
} catch (IOException e) {
log.error(
"storeTemporaryFile() - unable to write file - file: "
+ tmpFile
+ ", content: "
+ CoreStringUtils.truncateString(content)
+ " - "
+ e,
e);
return false;
}
return true;
}
/**
* Reads the content of a temporary file within the state location of this plugin.<br>
* The naming scheme for the temporary file is "<em>baseName</em>.<em>type</em>".
*
* @param fileName filename of the temporary file, must not contain any path segments, never null.
* @return the content of the temporary file or NULL if the file doesn't exist or couldn't be
* read.
*/
public static String readTemporaryFile(String fileName, String type) {
if (log.isTraceEnabled())
log.trace("readTemporaryFile() - fileName: " + fileName + ", type:" + type);
assert (fileName != null && type != null);
IPath stateLoc = CPCStoreRemoteLMIPlugin.getDefault().getStateLocation().makeAbsolute();
stateLoc.append("temp");
File tmpFile = new File(stateLoc.toString(), fileName + "." + type);
String result = null;
if (tmpFile.exists()) {
if (tmpFile.length() == 0) {
result = "";
} else {
try {
char[] buf = new char[(int) tmpFile.length()];
BufferedReader br = new BufferedReader(new FileReader(tmpFile));
int read = br.read(buf);
br.close();
result = new String(buf, 0, read);
} catch (IOException e) {
log.error("readTemporaryFile() - unable to read file - file: " + tmpFile + " - " + e, e);
result = null;
}
}
}
if (log.isTraceEnabled())
log.trace("readTemporaryFile() - result: " + CoreStringUtils.truncateString(result));
return result;
}