public DBaseFile(InputStream is) {
if (is == null) {
String message = Logging.getMessage("nullValue.InputStreamIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
this.file = null;
try {
this.header = this.readHeaderFromStream(is);
this.fields = this.readFieldsFromBuffer(this.header.fieldsHeaderBuffer);
this.records = this.readRecordsFromStream(is);
} catch (Exception e) {
String message = Logging.getMessage("generic.ExceptionAttemptingToReadFrom", is.toString());
Logging.logger().log(java.util.logging.Level.SEVERE, message, e);
throw new WWRuntimeException(message, e);
}
}
protected Header readHeaderFromFile(File file) throws IOException {
InputStream is = null;
Header header = null;
try {
is = new BufferedInputStream(new FileInputStream(file));
header = this.readHeaderFromStream(is);
} finally {
if (is != null) is.close();
}
return header;
}
protected List<DBaseRecord> readRecordsFromFile(File file) throws IOException {
List<DBaseRecord> records;
InputStream is = null;
try {
is = new BufferedInputStream(new FileInputStream(file));
WWIO.skipBytes(is, this.header.headerLength); // Skip over header
records = this.readRecordsFromStream(is);
} finally {
if (is != null) is.close();
}
return records;
}
/**
* Open and parse the specified file expressed as a file: URL..
*
* @param url the URL of the file to open, expressed as a URL with a scheme of "file".
* @param linkBase the original address of the document if the file is a retrieved and cached
* file.
* @return A {@code ColladaRoot} representing the file's COLLADA contents.
* @throws IOException if an I/O error occurs during opening and parsing.
* @throws XMLStreamException if a server parsing error is encountered.
*/
protected ColladaRoot parseCachedColladaFile(URL url, String linkBase)
throws IOException, XMLStreamException {
ColladaDoc colladaDoc;
InputStream refStream = url.openStream();
colladaDoc = new ColladaInputStream(refStream, WWIO.makeURI(linkBase));
try {
ColladaRoot refRoot = new ColladaRoot(colladaDoc);
refRoot.parse(); // also closes the URL's stream
return refRoot;
} catch (XMLStreamException e) {
refStream.close(); // parsing failed, so explicitly close the stream
throw e;
}
}