/*******************************************************************************
* Copyright 2012 University of Southern California
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This code was developed by the Information Integration Group as part
* of the Karma project at the Information Sciences Institute of the
* University of Southern California. For more information, publications,
* and related projects, please see: http://www.isi.edu/integration
******************************************************************************/
/**
*
*/
package edu.isi.karma.controller.update;
import java.io.PrintWriter;
import edu.isi.karma.rep.CellValue;
import edu.isi.karma.rep.Node;
import edu.isi.karma.util.JSONUtil;
import edu.isi.karma.view.VWorkspace;
import edu.isi.karma.view.ViewPreferences.ViewPreference;
/**
* Provides information about a value update to a single node.
*
* @author szekely
*
*/
public class NodeChangedUpdate extends AbstractUpdate {
public enum JsonKeys {
worksheet, nodeId, newStatus, displayValue, expandedValue
}
private final String worksheetId;
private final String nodeId;
private final CellValue newValue;
private final Node.NodeStatus newStatus;
public NodeChangedUpdate(String worksheetId, String nodeId,
CellValue newValue, Node.NodeStatus newStatus) {
super();
this.worksheetId = worksheetId;
this.nodeId = nodeId;
this.newValue = newValue;
this.newStatus = newStatus;
}
@Override
public void generateJson(String prefix, PrintWriter pw, VWorkspace vWorkspace) {
pw.println(prefix + "{");
String newPref = prefix + " ";
pw.println(newPref + JSONUtil.json(GenericJsonKeys.updateType, getUpdateType()));
pw.println(newPref + JSONUtil.json(JsonKeys.worksheet, worksheetId));
pw.println(newPref + JSONUtil.json(JsonKeys.nodeId, nodeId));
pw.println(newPref + JSONUtil.json(JsonKeys.newStatus, newStatus.getCodedStatus()));
pw.println(newPref + JSONUtil.json(JsonKeys.expandedValue, newValue.asString()));
String displayValueString = newValue.asString();
int maxValueLength = vWorkspace.getPreferences().getIntViewPreferenceValue(
ViewPreference.maxCharactersInCell);
if(displayValueString.length() > maxValueLength) {
displayValueString = JSONUtil.truncateCellValue(
displayValueString,maxValueLength);
}
pw.println(newPref + JSONUtil.jsonLast(JsonKeys.displayValue, displayValueString));
pw.println(prefix + "}");
}
public boolean equals(Object o) {
if (o instanceof NodeChangedUpdate) {
NodeChangedUpdate t = (NodeChangedUpdate)o;
return t.worksheetId.equals(worksheetId) && t.nodeId.equals(nodeId);
}
return false;
}
}