/**
* Copyright (C) 2010-2014 Morgner UG (haftungsbeschränkt)
*
* This file is part of Structr <http://structr.org>.
*
* Structr is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Structr 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 General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Structr. If not, see <http://www.gnu.org/licenses/>.
*/
package org.structr.web.diff;
import java.util.List;
import java.util.Map;
import org.structr.common.error.FrameworkException;
import org.structr.core.app.App;
import org.structr.web.entity.dom.Content;
import org.structr.web.entity.dom.DOMElement;
import org.structr.web.entity.dom.DOMNode;
import org.structr.web.entity.dom.Page;
import org.structr.web.entity.dom.relationship.DOMChildren;
/**
*
* @author Christian Morgner
*/
public class CreateOperation extends InvertibleModificationOperation {
private List<String> siblingHashes = null;
private String parentHash = null;
private DOMNode newNode = null;
private int depth = 0;
public CreateOperation(final Map<String, DOMNode> hashMappedExistingNodes, final String parentHash, final List<String> siblingHashes, final DOMNode newNode, final int depth) {
super(hashMappedExistingNodes);
this.siblingHashes = siblingHashes;
this.parentHash = parentHash;
this.newNode = newNode;
this.depth = depth;
}
@Override
public String toString() {
if (newNode instanceof Content) {
return "Create Content(" + newNode.getIdHashOrProperty() + ")";
} else {
return "Create " + newNode.getProperty(DOMElement.tag) + "(" + newNode.getIdHashOrProperty() + ")";
}
}
// ----- interface InvertibleModificationOperation -----
@Override
public void apply(final App app, final Page sourcePage, final Page newPage) throws FrameworkException {
final InsertPosition insertPosition = findInsertPosition(sourcePage, parentHash, siblingHashes, newNode);
if (insertPosition != null) {
final DOMNode parent = insertPosition.getParent();
final DOMNode sibling = insertPosition.getSibling();
if (parent != null && !parent.isSynced()) {
sourcePage.adoptNode(newNode);
parent.insertBefore(newNode, sibling);
// make existing node known to other operations
hashMappedExistingNodes.put(newNode.getIdHashOrProperty(), newNode);
// remove children of new node so that existing nodes can be moved later
for (final DOMChildren childRel : newNode.getChildRelationships()) {
app.delete(childRel);
}
}
}
}
@Override
public InvertibleModificationOperation revert() {
return null;
}
@Override
public Integer getPosition() {
// create perations should go after Delete but before Move
return 200 + depth;
}
}