/** {@inheritDoc} */
@Override
public void close() {
if (fileOutStream != null) {
try {
fileOutStream.close();
} catch (Exception e) {
// We cannot throw an exception within a release method.
LOG.log(Level.WARNING, "Unable to close file output stream.", e);
}
fileOutStream = null;
}
if (fileInStream != null) {
try {
fileInStream.close();
} catch (Exception e) {
// We cannot throw an exception within a release method.
LOG.log(Level.WARNING, "Unable to close file input stream.", e);
}
fileInStream = null;
}
if (nodeStorageFile != null) {
if (!nodeStorageFile.delete()) {
// We cannot throw an exception within a release method.
LOG.warning("Unable to delete file " + nodeStorageFile);
}
nodeStorageFile = null;
}
}
/** {@inheritDoc} */
@Override
public NodeLocation getNodeLocation(long nodeId) {
NodeLocation nodeLocation;
long offset;
initializeReadingStage();
offset = nodeId * NODE_DATA_SIZE;
nodeLocation = invalidNodeLocation;
if (offset < currentFileOffset) {
try {
byte validFlag;
fileInStream.seek(offset);
validFlag = dataInStream.readByte();
if (validFlag != 0) {
nodeLocation =
new NodeLocation(
FixedPrecisionCoordinateConvertor.convertToDouble(dataInStream.readInt()),
FixedPrecisionCoordinateConvertor.convertToDouble(dataInStream.readInt()));
}
} catch (IOException e) {
throw new OsmosisRuntimeException(
"Unable to read node information from the node storage file.", e);
}
}
return nodeLocation;
}