/**
* Unzips the sole entry in the specified zip file, and saves it in a temporary directory, and
* returns a File to the temporary location.
*
* @param path the path to the source file.
* @param suffix the suffix to give the temp file.
* @return a {@link File} for the temp file.
* @throws IllegalArgumentException if the <code>path</code> is <code>null</code> or empty.
*/
public static File unzipAndSaveToTempFile(String path, String suffix) {
if (WWUtil.isEmpty(path)) {
String message = Logging.getMessage("nullValue.PathIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
InputStream stream = null;
try {
stream = WWIO.openStream(path);
ByteBuffer buffer = WWIO.readStreamToBuffer(stream);
File file = WWIO.saveBufferToTempFile(buffer, WWIO.getFilename(path));
buffer = WWIO.readZipEntryToBuffer(file, null);
return WWIO.saveBufferToTempFile(buffer, suffix);
} catch (Exception e) {
e.printStackTrace();
} finally {
WWIO.closeStream(stream, path);
}
return null;
}
private java.nio.ByteBuffer readElevations(Object source) throws java.io.IOException {
if (!(source instanceof java.io.File) && !(source instanceof java.net.URL)) {
String message = Logging.getMessage("DataRaster.CannotRead", source);
Logging.logger().severe(message);
throw new java.io.IOException(message);
}
if (source instanceof java.io.File) {
java.io.File file = (java.io.File) source;
// handle .bil.zip, .bil16.zip, and .bil32.gz files
if (file.getName().toLowerCase().endsWith(".zip")) {
return WWIO.readZipEntryToBuffer(file, null);
}
// handle bil.gz, bil16.gz, and bil32.gz files
else if (file.getName().toLowerCase().endsWith(".gz")) {
return WWIO.readGZipFileToBuffer(file);
} else if (!this.isMapLargeFiles() || (this.getLargeFileThreshold() > file.length())) {
return WWIO.readFileToBuffer(file);
} else {
return WWIO.mapFile(file);
}
} else // (source instanceof java.net.URL)
{
java.net.URL url = (java.net.URL) source;
return WWIO.readURLContentToBuffer(url);
}
}