// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.command;
import static org.openstreetmap.josm.tools.I18n.trn;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.ListIterator;
import javax.swing.JLabel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.MutableTreeNode;
import org.openstreetmap.josm.data.osm.DataSet;
import org.openstreetmap.josm.data.osm.Node;
import org.openstreetmap.josm.data.osm.OsmPrimitive;
import org.openstreetmap.josm.data.osm.Relation;
import org.openstreetmap.josm.data.osm.RelationMember;
import org.openstreetmap.josm.data.osm.Way;
import org.openstreetmap.josm.tools.ImageProvider;
/**
* Represents a command for undeleting an {@see OsmPrimitive} which was deleted on the server.
* The command remembers the former node id and sets the node id to 0. This turns
* the node into a new node which can be uploaded to the server.
*
*/
public class UndeletePrimitivesCommand extends ConflictResolveCommand {
//static private final Logger logger = Logger.getLogger(UndeletePrimitivesCommand.class.getName());
/** the node to undelete */
private final List<OsmPrimitive> toUndelete = new ArrayList<OsmPrimitive>();
/** primitives that replaced undeleted primitives */
private final List<OsmPrimitive> replacedPrimitives = new ArrayList<OsmPrimitive>();
/**
* constructor
* @param node the node to undelete
*/
public UndeletePrimitivesCommand(OsmPrimitive node) {
toUndelete.add(node);
}
/**
* constructor
* @param node the node to undelete
*/
public UndeletePrimitivesCommand(OsmPrimitive ... toUndelete) {
for (int i=0; i < toUndelete.length; i++) {
this.toUndelete.add(toUndelete[i]);
}
}
/**
* constructor
* @param node the node to undelete
*/
public UndeletePrimitivesCommand(Collection<OsmPrimitive> toUndelete) {
this.toUndelete.addAll(toUndelete);
}
@Override
public MutableTreeNode description() {
return new DefaultMutableTreeNode(
new JLabel(
trn("Undelete {0} primitive", "Undelete {0} primitives", toUndelete.size(), toUndelete.size()),
ImageProvider.get("data", "object"),
JLabel.HORIZONTAL
)
);
}
@Override
public boolean executeCommand() {
super.executeCommand();
replacedPrimitives.clear();
for(OsmPrimitive primitive: toUndelete) {
if(getLayer().getConflicts().hasConflictForMy(primitive)) {
rememberConflict(getLayer().getConflicts().getConflictForMy(primitive));
getLayer().getConflicts().remove(primitive);
}
OsmPrimitive prim;
switch (primitive.getType()) {
case NODE:
prim = new Node((Node)primitive, true);
break;
case WAY:
prim = new Way((Way)primitive, true);
break;
case RELATION:
prim = new Relation((Relation)primitive, true);
break;
default:
throw new AssertionError();
}
replacedPrimitives.add(prim);
replacePrimitive(getLayer().data, primitive, prim);
}
return true;
}
private void replacePrimitive(DataSet dataSet, OsmPrimitive oldPrim, OsmPrimitive newPrim) {
dataSet.addPrimitive(newPrim);
for (OsmPrimitive referrer: oldPrim.getReferrers()) {
if (referrer instanceof Way) {
Way w = (Way)referrer;
List<Node> nodes = w.getNodes();
Collections.replaceAll(nodes, (Node)oldPrim, (Node)newPrim);
w.setNodes(nodes);
w.setModified(true);
} else if (referrer instanceof Relation) {
Relation r = (Relation)referrer;
List<RelationMember> members = r.getMembers();
ListIterator<RelationMember> it = members.listIterator();
while (it.hasNext()) {
RelationMember rm = it.next();
if (rm.getMember() == oldPrim) {
it.set(new RelationMember(rm.getRole(), newPrim));
}
}
r.setMembers(members);
r.setModified(true);
}
}
dataSet.removePrimitive(oldPrim);
}
@Override
public void undoCommand() {
for (int i=0; i<toUndelete.size(); i++) {
replacePrimitive(getLayer().data, replacedPrimitives.get(i), toUndelete.get(i));
}
super.undoCommand();
}
@Override
public void fillModifiedData(Collection<OsmPrimitive> modified, Collection<OsmPrimitive> deleted,
Collection<OsmPrimitive> added) {
}
}