/*=============================================================================#
# 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 the GNU Lesser General Public License
# v2.1 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.server.jri;
import java.io.IOException;
import de.walware.rj.data.RCharacterStore;
import de.walware.rj.data.REnvironment;
import de.walware.rj.data.RJIO;
import de.walware.rj.data.RList;
import de.walware.rj.data.RObject;
import de.walware.rj.data.RObjectFactory;
import de.walware.rj.data.RStore;
import de.walware.rj.data.defaultImpl.AbstractRObject;
import de.walware.rj.data.defaultImpl.ExternalizableRObject;
import de.walware.rj.data.defaultImpl.RCharacterDataImpl;
public class JRIEnvironmentImpl extends AbstractRObject
implements REnvironment, ExternalizableRObject {
private byte specialType;
private String className1;
private String environmentName;
private long handle;
private RObject[] components;
private int length;
private RCharacterDataImpl namesAttribute;
public JRIEnvironmentImpl(final String envName, final long handle,
final RObject[] initialComponents, String[] initialNames, final int length,
final byte specialType, final String className1) {
this.environmentName= envName;
this.handle = handle;
this.components = initialComponents;
this.length = length;
if (initialNames == null && initialComponents != null) {
initialNames = new String[length];
}
this.namesAttribute = (initialNames != null) ? new RCharacterDataImpl(initialNames, length) : null;
this.specialType= specialType;
this.className1 = className1;
}
public JRIEnvironmentImpl(final RJIO io, final RObjectFactory factory) throws IOException, ClassNotFoundException {
readExternal(io, factory);
}
public void readExternal(final RJIO io, final RObjectFactory factory) throws IOException {
//-- options
final int options = io.readInt();
//-- special attributes
this.specialType= (byte) ((options >>> 24) & 0xff);
this.className1 = ((options & RObjectFactory.O_CLASS_NAME) != 0) ?
io.readString() : RObject.CLASSNAME_ENV;
//-- data
this.handle = io.readLong();
this.environmentName = io.readString();
final int l = this.length = (int) io.readVULong((byte) (options & RObjectFactory.O_LENGTHGRADE_MASK));
if ((options & RObjectFactory.O_NO_CHILDREN) != 0) {
this.namesAttribute = null;
this.components = null;
}
else {
this.namesAttribute = new RCharacterDataImpl(io, l);
this.components = new RObject[l];
for (int i = 0; i < l; i++) {
this.components[i] = factory.readObject(io);
}
}
//-- attributes
if ((options & RObjectFactory.O_WITH_ATTR) != 0) {
setAttributes(factory.readAttributeList(io));
}
}
@Override
public void writeExternal(final RJIO io, final RObjectFactory factory) throws IOException {
final int l = this.length;
//-- options
int options = io.getVULongGrade(l);
options|= (this.specialType << 24);
final boolean customClass = this.className1 != null
&& !this.className1.equals(RObject.CLASSNAME_ENV);
if (customClass) {
options |= RObjectFactory.O_CLASS_NAME;
}
final RList attributes = ((io.flags & RObjectFactory.F_WITH_ATTR) != 0) ? getAttributes() : null;
if (attributes != null) {
options |= RObjectFactory.O_WITH_ATTR;
}
if (this.components == null) {
options |= RObjectFactory.O_NO_CHILDREN;
}
io.writeInt(options);
//-- special attributes
if (customClass) {
io.writeString(this.className1);
}
io.writeLong(this.handle);
io.writeString(this.environmentName);
io.writeVULong((byte) (options & RObjectFactory.O_LENGTHGRADE_MASK), l);
if (this.components != null) {
this.namesAttribute.writeExternal(io);
//-- data
for (int i = 0; i < l; i++) {
factory.writeObject(this.components[i], io);
}
}
//-- attributes
if (attributes != null) {
factory.writeAttributeList(attributes, io);
}
}
@Override
public final byte getRObjectType() {
return TYPE_ENV;
}
@Override
public String getRClassName() {
return (this.className1 != null) ? this.className1 : RObject.CLASSNAME_ENV;
}
@Override
public int getSpecialType() {
return this.specialType;
}
@Override
public String getEnvironmentName() {
return this.environmentName;
}
@Override
public long getHandle() {
return this.handle;
}
@Override
public long getLength() {
return this.length;
}
@Override
public RCharacterStore getNames() {
return this.namesAttribute;
}
@Override
public String getName(final int idx) {
return this.namesAttribute.getChar(idx);
}
@Override
public String getName(final long idx) {
return this.namesAttribute.getChar(idx);
}
@Override
public RObject get(final int idx) {
return this.components[idx];
}
@Override
public RObject get(final long idx) {
if (idx < 0 || idx >= Integer.MAX_VALUE) {
throw new IndexOutOfBoundsException(Long.toString(idx));
}
return this.components[(int) idx];
}
public RObject[] toArray() {
final RObject[] array = new RObject[this.length];
System.arraycopy(this.components, 0, array, 0, this.length);
return array;
}
@Override
public RStore<?> getData() {
return null;
}
public boolean set(final int idx, final RObject component) {
this.components[idx] = component;
return true;
}
public boolean set(final String name, final RObject component) {
if (component == null) {
throw new NullPointerException();
}
final int idx = this.namesAttribute.indexOf(name, 0);
if (idx >= 0) {
this.components[idx] = component;
return true;
}
return false;
}
public void insert(final int idx, final String name, final RObject component) {
if (component == null) {
throw new NullPointerException();
}
final int[] idxs = new int[] { idx };
this.components = prepareInsert(this.components, this.length, idxs);
this.length++;
if (name == null) {
this.namesAttribute.insertNA(idxs);
}
else {
this.namesAttribute.insertChar(idx, name);
}
}
public void add(final String name, final RObject component) {
insert(this.length, name, component);
}
public void remove(final int idx) {
final int[] idxs = new int[] { idx };
this.components = remove(this.components, this.length, idxs);
this.length--;
this.namesAttribute.remove(idxs);
}
@Override
public RObject get(final String name) {
final int idx = this.namesAttribute.indexOf(name, 0);
if (idx >= 0) {
return this.components[idx];
}
return null;
}
public boolean containsName(final String name) {
return (this.namesAttribute.indexOf(name) >= 0);
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder();
sb.append("RObject type=environment, class=").append(getRClassName());
sb.append("\n\tlength=").append(this.length);
if (this.components != null) {
sb.append("\n\tdata: ");
for (int i = 0; i < this.length; i++) {
sb.append("\n$").append(this.namesAttribute.getChar(i)).append("\n");
sb.append(this.components[i]);
}
}
else {
sb.append("\n<NODATA/>");
}
return sb.toString();
}
}