/*=============================================================================#
# Copyright (c) 2009-2016 Stephan Wahlbrink (WalWare.de) and others.
# All rights reserved. This program and the accompanying materials
# are made available under the terms of either (per the licensee's choosing)
# - the Eclipse Public License v1.0
# which accompanies this distribution, and is available at
# http://www.eclipse.org/legal/epl-v10.html, or
# - the GNU Lesser General Public License v2.1 or newer
# which accompanies this distribution, and is available at
# http://www.gnu.org/licenses/lgpl.html
#
# Contributors:
# Stephan Wahlbrink - initial API and implementation
#=============================================================================*/
package de.walware.rj.data.defaultImpl;
import java.io.IOException;
import de.walware.rj.data.RCharacterStore;
import de.walware.rj.data.RJIO;
import de.walware.rj.data.RObject;
import de.walware.rj.data.RObjectFactory;
import de.walware.rj.data.RS4Object;
import de.walware.rj.data.RStore;
public class RS4ObjectImpl extends AbstractRObject
implements RS4Object, ExternalizableRObject {
private String className;
private int dataSlotIdx;
private RCharacterDataImpl slotNames;
private RObject[] slotValues;
public RS4ObjectImpl(final String className, final String[] slotNames, final RObject[] slotValues) {
if (className == null || slotNames == null || slotValues == null) {
throw new NullPointerException();
}
this.className = className;
this.slotNames = new RCharacterDataImpl(slotNames);
this.dataSlotIdx = this.slotNames.indexOf(".Data", 0);
this.slotValues = slotValues;
}
public RS4ObjectImpl(final RJIO io, final RObjectFactory factory) throws IOException {
readExternal(io, factory);
}
public void readExternal(final RJIO io, final RObjectFactory factory) throws IOException {
//-- options
final int options = io.readInt();
//-- special attributes
this.className = io.readString();
//-- data
final int l = (int) io.readVULong((byte) (options & RObjectFactory.O_LENGTHGRADE_MASK));
this.dataSlotIdx = io.readInt();
this.slotNames = new RCharacterDataImpl(io, l);
this.slotValues = new RObject[l];
for (int i = 0; i < l; i++) {
this.slotValues[i] = factory.readObject(io);
}
}
@Override
public void writeExternal(final RJIO io, final RObjectFactory factory) throws IOException {
final int l = this.slotValues.length;
//-- options
final int options = io.getVULongGrade(l);
io.writeInt(options);
//-- special attributes
io.writeString(this.className);
//-- data
io.writeVULong((byte) (options & RObjectFactory.O_LENGTHGRADE_MASK), l);
io.writeInt(this.dataSlotIdx);
this.slotNames.writeExternal(io);
for (int i = 0; i < l; i++) {
factory.writeObject(this.slotValues[i], io);
}
}
@Override
public byte getRObjectType() {
return TYPE_S4OBJECT;
}
@Override
public String getRClassName() {
return this.className;
}
@Override
public long getLength() {
return this.slotValues.length;
}
@Override
public boolean hasDataSlot() {
return (this.dataSlotIdx >= 0);
}
@Override
public RObject getDataSlot() {
return (this.dataSlotIdx >= 0) ? this.slotValues[this.dataSlotIdx] : null;
}
public byte getDataType() {
return (this.dataSlotIdx >= 0 && this.slotValues[this.dataSlotIdx] != null) ?
this.slotValues[this.dataSlotIdx].getData().getStoreType() : 0;
}
@Override
public RStore<?> getData() {
return (this.dataSlotIdx >= 0 && this.slotValues[this.dataSlotIdx] != null) ?
this.slotValues[this.dataSlotIdx].getData() : null;
}
@Override
public RCharacterStore getNames() {
return this.slotNames;
}
@Override
public String getName(final int idx) {
return this.slotNames.getChar(idx);
}
@Override
public String getName(final long idx) {
return this.slotNames.getChar(idx);
}
@Override
public RObject get(final int idx) {
return this.slotValues[idx];
}
@Override
public RObject get(final long idx) {
if (idx < 0 || idx >= Integer.MAX_VALUE) {
throw new IndexOutOfBoundsException(Long.toString(idx));
}
return this.slotValues[(int) idx];
}
@Override
public RObject get(final String name) {
final int idx = this.slotNames.indexOf(name, 0);
if (idx >= 0) {
return this.slotValues[idx];
}
throw new IllegalArgumentException();
}
public void insert(final int idx, final String name, final RObject component) {
throw new UnsupportedOperationException();
}
public void add(final String name, final RObject component) {
throw new UnsupportedOperationException();
}
public void remove(final int idx) {
throw new UnsupportedOperationException();
}
public boolean set(final int idx, final RObject value) {
this.slotValues[idx] = value;
return true;
}
public boolean set(final String name, final RObject component) {
if (this.dataSlotIdx >= 0 && name.equals(".Data")) {
this.slotValues[this.dataSlotIdx] = component;
return true;
}
else {
final int i = this.slotNames.indexOf(name, 0);
if (i >= 0) {
this.slotValues[i] = component;
return true;
}
}
return false;
}
}