/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.gatein.api.navigation;
import java.io.Serializable;
import org.exoplatform.portal.mop.navigation.NodeChange;
import org.exoplatform.portal.mop.navigation.NodeContext;
import org.exoplatform.portal.mop.navigation.NodeState;
import org.gatein.api.common.i18n.LocalizedString;
/**
* Used to store uncommitted node changes during serialization, derived from
* {@link org.exoplatform.portal.mop.navigation.NodeChange}.
*
* @author <a href="mailto:nscavell@redhat.com">Nick Scavelli</a>
*/
abstract class ApiNodeChange implements Serializable {
protected final NodePath target;
protected final LocalizedString displayName;
protected final boolean displayNameChanged;
protected ApiNodeChange(NodeContext<ApiNode> target) {
ApiNode node = target.getNode();
this.target = node.getNodePath();
if (node.isDisplayNameChanged()) {
this.displayName = node.getDisplayNames();
this.displayNameChanged = true;
} else {
this.displayName = null;
this.displayNameChanged = false;
}
}
public abstract void apply(ApiNode root);
public NodePath getTarget() {
return target;
}
protected NodePath getNodePath(NodeContext<ApiNode> context) {
ApiNode node = (context == null) ? null : context.getNode();
return (node == null) ? null : node.getNodePath();
}
protected static ApiNode getNode(ApiNode root, NodePath path) {
ApiNode node = (ApiNode) root.getNode(path);
if (node == null) {
NodeVisitor visitor = Nodes.visitNodes(path);
root.navigation.refreshNode(root, visitor);
node = (ApiNode) root.getNode(path);
}
return node;
}
public static class Created extends ApiNodeChange {
private final NodePath parent;
private final NodePath previous;
private final String name;
public Created(NodeChange.Created<NodeContext<ApiNode>> created) {
super(created.getTarget());
this.parent = getNodePath(created.getParent());
this.previous = getNodePath(created.getPrevious());
this.name = created.getName();
}
@Override
public void apply(ApiNode root) {
ApiNode node = getNode(root, parent);
if (!node.isChildrenLoaded()) {
node.navigation.refreshNode(node, Nodes.visitChildren());
}
Node child;
int index = (previous == null) ? 0 : node.indexOf(previous.getLastSegment()) + 1;
if (index < 0) {
child = node.addChild(name);
} else {
child = node.addChild(index, name);
}
if (displayNameChanged) {
child.setDisplayNames(displayName);
}
}
public NodePath getParent() {
return parent;
}
public NodePath getPrevious() {
return previous;
}
public String getName() {
return name;
}
}
public static class Destroyed extends ApiNodeChange {
private final NodePath parent;
private final String name;
protected Destroyed(NodeChange.Destroyed<NodeContext<ApiNode>> destroyed) {
super(destroyed.getTarget());
this.parent = getNodePath(destroyed.getParent());
this.name = destroyed.getTarget().getName();
}
@Override
public void apply(ApiNode root) {
Node node = getNode(root, parent);
node.removeChild(name);
}
public NodePath getParent() {
return parent;
}
}
public static class Renamed extends ApiNodeChange {
private final NodePath parent;
private final String name;
public Renamed(NodeChange.Renamed<NodeContext<ApiNode>> renamed) {
super(renamed.getTarget());
this.parent = getNodePath(renamed.getParent());
this.name = renamed.getName();
}
@Override
public void apply(ApiNode root) {
ApiNode node = getNode(root, parent);
node.context.setName(name);
if (displayNameChanged) {
node.setDisplayNames(displayName);
}
}
public NodePath getParent() {
return parent;
}
public String getName() {
return name;
}
}
public static class Moved extends ApiNodeChange {
private final NodePath from;
private final NodePath to;
private final NodePath previous;
public Moved(NodeChange.Moved<NodeContext<ApiNode>> moved) {
super(moved.getTarget());
this.from = getNodePath(moved.getFrom());
this.to = getNodePath(moved.getTo());
this.previous = getNodePath(moved.getPrevious());
}
@Override
public void apply(ApiNode root) {
ApiNode toNode = getNode(root, to);
ApiNode node = getNode(root, from.append(target.getLastSegment()));
int index = (previous == null) ? 0 : toNode.indexOf(previous.getLastSegment());
if (index < 0) {
node.moveTo(toNode);
} else {
node.moveTo(index, toNode);
}
if (displayNameChanged) {
node.setDisplayNames(displayName);
}
}
public NodePath getFrom() {
return from;
}
public NodePath getTo() {
return to;
}
public NodePath getPrevious() {
return previous;
}
}
public static final class Updated extends ApiNodeChange {
private final NodeState state;
public Updated(NodeChange.Updated<NodeContext<ApiNode>> updated) {
super(updated.getTarget());
this.state = updated.getState();
}
@Override
public void apply(ApiNode root) {
ApiNode node = getNode(root, target);
node.context.setState(state);
if (displayNameChanged) {
node.setDisplayNames(displayName);
}
}
public NodeState getState() {
return state;
}
}
}