private void readCapabilities(DataInput in) throws IOException {
long capabilities = in.readLong();
long frequentCapabilities = in.readLong();
for (int i = 0; i < 64; i++) {
if ((capabilities & (1L << i)) != 0L) node.setCapability(i);
if ((frequentCapabilities & (1L << i)) != 0L) node.clearCapabilityIsFrequent(i);
}
}
/*
* NOTE: This implementation assumes a maximum of 64 capability
* bits per node class. If this changes in the future, this
* implementation will need to be updated.
*/
private void writeCapabilities(DataOutput out) throws IOException {
long capabilities = 0;
long frequentCapabilities = 0;
for (int i = 0; i < 64; i++) {
if (node.getCapability(i)) capabilities |= (1L << i);
if (!(node.getCapabilityIsFrequent(i))) frequentCapabilities |= (1L << i);
}
out.writeLong(capabilities);
out.writeLong(frequentCapabilities);
}
/**
* Create a new State object
*
* <p>During Saveing SymbolTableData will have the nodeID and j3dNode fields set
*
* <p>During loading SymbolTableData be null, symbol will be created and added to the symbol data
* during readObject()
*/
public SceneGraphObjectState(SymbolTableData symbol, Controller control) {
this.symbol = symbol;
this.control = control;
if (symbol != null) {
this.node = symbol.j3dNode;
// This consistancy check is for debugging purposes
// if (symbol.j3dNode==null || symbol.nodeID==0)
// throw new RuntimeException( "Bad Symbol in State creation");
}
if (node != null) {
nodeClassName = node.getClass().getName();
try {
if (node instanceof com.sun.j3d.utils.scenegraph.io.SceneGraphIO)
((com.sun.j3d.utils.scenegraph.io.SceneGraphIO) node)
.createSceneGraphObjectReferences(control.getSymbolTable());
} catch (Exception e) {
System.err.println("Exception in createSceneGraphObjectReferences");
e.printStackTrace();
}
}
}
/**
* DO NOT call symbolTable.addReference in writeObject as this (may) result in a
* concurrentModificationException.
*
* <p>All references should be created in the constructor
*/
public void writeObject(DataOutput out) throws IOException {
boolean sgIO = node instanceof com.sun.j3d.utils.scenegraph.io.SceneGraphIO;
out.writeBoolean(sgIO);
out.writeInt(symbol.nodeID);
int nodeClassID = control.getNodeClassID(node);
out.writeShort(nodeClassID);
if (nodeClassID == -1) out.writeUTF(nodeClassName);
writeConstructorParams(out);
if (sgIO) {
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
DataOutputStream tmpOut = new DataOutputStream(byteStream);
((com.sun.j3d.utils.scenegraph.io.SceneGraphIO) node).writeSceneGraphObject(tmpOut);
tmpOut.close();
out.writeInt(byteStream.size());
out.write(byteStream.toByteArray());
}
writeUserData(out);
writeString(node.getName(), out);
writeCapabilities(out);
}
private void writeUserData(DataOutput out) throws IOException {
Object obj = node.getUserData();
if (obj != null && !(obj instanceof java.io.Serializable)) {
System.err.println("UserData is not Serializable and will not be saved");
obj = null;
}
control.writeSerializedData(out, (Serializable) obj);
}
public void readObject(DataInput in) throws IOException {
boolean sgIO = in.readBoolean();
int nodeID = in.readInt();
int nodeClassID = in.readShort();
nodeClassName = null;
if (nodeClassID == -1) nodeClassName = in.readUTF();
readConstructorParams(in);
if (nodeClassID != -1) {
node = createNode();
nodeClassName = node.getClass().getName();
} else node = createNode(nodeClassName);
if (sgIO) {
if (control.getCurrentFileVersion() == 1)
((com.sun.j3d.utils.scenegraph.io.SceneGraphIO) node).readSceneGraphObject(in);
else {
int size = in.readInt();
if (node instanceof com.sun.j3d.utils.scenegraph.io.SceneGraphIO) {
byte[] bytes = new byte[size];
in.readFully(bytes);
ByteArrayInputStream byteStream = new ByteArrayInputStream(bytes);
DataInputStream tmpIn = new DataInputStream(byteStream);
((com.sun.j3d.utils.scenegraph.io.SceneGraphIO) node).readSceneGraphObject(tmpIn);
tmpIn.close();
} else {
in.skipBytes(size);
}
}
}
symbol = control.getSymbolTable().createSymbol(this, node, nodeID);
readUserData(in);
if (control.getCurrentFileVersion() > 2) {
node.setName(readString(in));
}
readCapabilities(in);
}
private void readUserData(DataInput in) throws IOException {
node.setUserData(control.readSerializedData(in));
}