/**
* Creates a new FSTObjectOutput stream to write data to the specified underlying output stream.
* The counter <code>written</code> is set to zero. Don't create a FSTConfiguration with each
* stream, just create one global static configuration and reuse it. FSTConfiguration is
* threadsafe.
*
* @param out the underlying output stream, to be saved for later use.
*/
public FSTObjectOutput(OutputStream out, FSTConfiguration conf) {
this.conf = conf;
codec = conf.createStreamEncoder();
codec.setOutstream(out);
objects = (FSTObjectRegistry) conf.getCachedObject(FSTObjectRegistry.class);
if (objects == null) {
objects = new FSTObjectRegistry(conf);
objects.disabled = !conf.isShareReferences();
} else {
objects.clearForWrite();
}
}
@Override
public void close() throws IOException {
flush();
closed = true;
codec.close();
resetAndClearRefs();
conf.returnObject(objects);
}
public void writeObject(Object obj, Class... possibles) throws IOException {
curDepth++;
if (conf.isCrossPlatform()) {
writeObjectInternal(obj, null); // not supported cross platform
}
if (possibles != null && possibles.length > 1) {
for (int i = 0; i < possibles.length; i++) {
Class possible = possibles[i];
codec.registerClass(possible);
}
}
writeObjectInternal(obj, possibles);
}
// incoming array is already registered
protected void writeArray(FSTClazzInfo.FSTFieldInfo referencee, Object array) throws IOException {
if (array == null) {
codec.writeClass(Object.class);
codec.writeFInt(-1);
return;
}
final int len = Array.getLength(array);
Class<?> componentType = array.getClass().getComponentType();
codec.writeClass(array.getClass());
codec.writeFInt(len);
if (!componentType.isArray()) {
if (codec.isPrimitiveArray(array, componentType)) {
codec.writePrimitiveArray(array, 0, len);
} else { // objects
Object arr[] = (Object[]) array;
for (int i = 0; i < len; i++) {
Object toWrite = arr[i];
writeObjectWithContext(referencee, toWrite);
}
}
} else { // multidim array. FIXME shared refs to subarrays are not tested !!!
Object[] arr = (Object[]) array;
FSTClazzInfo.FSTFieldInfo ref1 =
new FSTClazzInfo.FSTFieldInfo(
referencee.getPossibleClasses(),
null,
conf.getCLInfoRegistry().isIgnoreAnnotations());
for (int i = 0; i < len; i++) {
Object subArr = arr[i];
boolean needsWrite = true;
if (codec.isTagMultiDimSubArrays()) {
if (subArr == null) {
needsWrite = !codec.writeTag(NULL, null, 0, null);
} else {
needsWrite = !codec.writeTag(ARRAY, subArr, 0, subArr);
}
}
if (needsWrite) writeArray(ref1, subArr);
}
}
}
public FSTClazzInfoRegistry getClassInfoRegistry() {
return conf.getCLInfoRegistry();
}
/**
* Creates a new FSTObjectOutput stream to write data to the specified underlying output stream.
* uses Default Configuration singleton
*/
public FSTObjectOutput(OutputStream out) {
this(out, FSTConfiguration.getDefaultConfiguration());
}
/**
* serialize without an underlying stream, the resulting byte array of writing to this
* FSTObjectOutput can be accessed using getBuffer(), the size using getWritten(). Note once you
* call close or flush, the tmp byte array is lost. (grab array before flushing/closing)
*
* <p>uses default configuration singleton
*
* @throws IOException
*/
public FSTObjectOutput() {
this(null, FSTConfiguration.getDefaultConfiguration());
codec.setOutstream(null);
}
