/*******************************************************************************
* 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.command;
import java.io.File;
import java.io.PrintWriter;
import org.json.JSONException;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import edu.isi.karma.controller.update.AbstractUpdate;
import edu.isi.karma.controller.update.ErrorUpdate;
import edu.isi.karma.controller.update.InfoUpdate;
import edu.isi.karma.controller.update.UpdateContainer;
import edu.isi.karma.rep.Workspace;
import edu.isi.karma.view.VWorkspace;
import edu.isi.karma.webserver.ServletContextParameterMap;
import edu.isi.karma.webserver.ServletContextParameterMap.ContextParameter;
public class ResetKarmaCommand extends Command {
private final boolean forgetSemanticTypes;
private final boolean forgetModels;
private final boolean forgetAlignment;
private static Logger logger = LoggerFactory.getLogger(ResetKarmaCommand.class);
protected ResetKarmaCommand(String id, boolean forgetSemanticTypes, boolean forgetModels, boolean forgetAlignment) {
super(id);
this.forgetSemanticTypes = forgetSemanticTypes;
this.forgetModels = forgetModels;
this.forgetAlignment = forgetAlignment;
}
@Override
public String getCommandName() {
return this.getClass().getSimpleName();
}
@Override
public String getTitle() {
return "Reset Karma";
}
@Override
public String getDescription() {
String desc = "";
int numSelected = 0;
if(forgetSemanticTypes) numSelected++;
if(forgetModels) numSelected++;
if(forgetAlignment) numSelected++;
int curSep = 0;
if(forgetSemanticTypes) {
desc = "Semantic Types";
curSep ++;
}
if(forgetModels) {
if(curSep > 0) {
if(curSep < numSelected-1) {
desc += ", ";
} else {
desc += " and ";
}
}
desc += "Models";
curSep++;
}
if(forgetAlignment) {
if(curSep > 0) {
if(curSep < numSelected-1) {
desc += ", ";
} else {
desc += " and ";
}
}
desc += "Alignment";
curSep++;
}
return desc;
}
@Override
public CommandType getCommandType() {
return CommandType.notUndoable;
}
@Override
public UpdateContainer doIt(Workspace workspace) throws CommandException {
UpdateContainer c = new UpdateContainer();
if (forgetSemanticTypes) {
boolean deletTypes = workspace.getSemanticTypeModelHandler().removeAllLabels();
if (!deletTypes)
c.add(new ErrorUpdate("Error occured while removing semantic types."));
}
if (forgetModels) {
File dir = new File(ServletContextParameterMap.getParameterValue(ContextParameter.R2RML_USER_DIR));
if (!dir.exists() || !dir.isDirectory()) {
logger.error("Directory not found where the model histories are stored.");
c.add(new ErrorUpdate("Error occured while removing Model Histories: Directory was not found"));
} else {
File[] workspaceFiles = dir.listFiles();
if (workspaceFiles != null && workspaceFiles.length != 0) {
for (File file: workspaceFiles) {
file.delete();
}
}
}
}
if(forgetAlignment) {
File dir = new File(ServletContextParameterMap.getParameterValue(ContextParameter.ALIGNMENT_GRAPH_DIRECTORY));
if (!dir.exists() || !dir.isDirectory()) {
logger.error("Directory not found where the Alignment is stored.");
c.add(new ErrorUpdate("Error occured while removing Alignment: Directory was not found"));
} else {
File[] workspaceFiles = dir.listFiles();
if (workspaceFiles != null && workspaceFiles.length != 0) {
for (File file: workspaceFiles) {
file.delete();
}
}
}
}
c.add(new AbstractUpdate(){
@Override
public void generateJson(String prefix, PrintWriter pw,
VWorkspace vWorkspace) {
JSONObject obj = new JSONObject();
try {
obj.put(GenericJsonKeys.updateType.name(), "ResetKarmaCommandUpdate");
pw.println(obj.toString());
} catch (JSONException e) {
logger.error("Unable to generate Json", e);
}
}
});
c.add(new InfoUpdate("Reset complete"));
return c;
}
@Override
public UpdateContainer undoIt(Workspace workspace) {
return null;
}
}