/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program 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 General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.gui.inventory.resource;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.faces.application.FacesMessage;
import org.rhq.core.domain.auth.Subject;
import org.rhq.core.gui.util.FacesContextUtility;
import org.rhq.core.gui.util.StringUtility;
import org.rhq.core.util.exception.ThrowableUtil;
import org.rhq.enterprise.gui.util.EnterpriseFacesContextUtility;
import org.rhq.enterprise.server.resource.ResourceFactoryManagerLocal;
import org.rhq.enterprise.server.util.LookupUtil;
/**
* JSF Bean for handling deleting resources.
*
* @author Jason Dobies
*/
public class DeleteResourcesUIBean {
// Constants --------------------------------------------
private static final int NUM_DISPLAYED_FAILURES = 3;
// Actions --------------------------------------------
public String deleteSelectedResources() {
Subject subject = EnterpriseFacesContextUtility.getSubject();
String[] selectedResources = FacesContextUtility.getRequest().getParameterValues("selectedResources");
ResourceFactoryManagerLocal resourceFactoryManager = LookupUtil.getResourceFactoryManager();
// Holds the results of each call
List<String> successes = new ArrayList<String>();
Map<String, String> failures = new HashMap<String, String>();
// Attempt delete for each selected resource
if (selectedResources == null) {
FacesContextUtility.addMessage(FacesMessage.SEVERITY_WARN, "No resources selected for deletion");
return "successOrFailure";
}
for (String resourceIdString : selectedResources) {
try {
int resourceId = Integer.parseInt(resourceIdString);
resourceFactoryManager.deleteResource(subject, resourceId);
successes.add(resourceIdString);
} catch (Exception e) {
String errorMessages = ThrowableUtil.getAllMessages(e, true);
failures.put(resourceIdString, errorMessages);
}
}
// If there was at least one success, wrap all into the same success message
if (successes.size() > 0) {
FacesContextUtility.addMessage(FacesMessage.SEVERITY_INFO, "Deleted the following resources: "
+ StringUtility.getListAsDelimitedString(successes));
}
// For each failure, show the reason
// Cap this so it doesn't grow out of control (assumes most deletes will be of the same resource type, in which
// case chances are the reasons each delete failed should be the same)
int errorCount = 0;
List<String> additionalErrorIds = new ArrayList<String>();
for (String errorResourceId : failures.keySet()) {
if (errorCount < NUM_DISPLAYED_FAILURES) {
String errorMessage = failures.get(errorResourceId);
FacesContextUtility.addMessage(FacesMessage.SEVERITY_ERROR, "Failed to delete resource: "
+ errorResourceId + ". Cause: " + errorMessage);
} else {
additionalErrorIds.add(errorResourceId);
}
errorCount++;
}
// If the cap was passed, display another error message informing the user of which other resources failed
if (additionalErrorIds.size() > 0) {
FacesContextUtility.addMessage(FacesMessage.SEVERITY_ERROR,
"Full errors not shown for resources that failed to delete: "
+ StringUtility.getListAsDelimitedString(additionalErrorIds));
}
return "successOrFailure";
}
}