/*
* 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.group;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
import javax.faces.model.DataModel;
import org.rhq.core.domain.resource.ResourceType;
import org.rhq.core.domain.resource.composite.ResourceFacets;
import org.rhq.core.domain.resource.composite.ResourceWithAvailability;
import org.rhq.core.domain.util.PageControl;
import org.rhq.core.domain.util.PageList;
import org.rhq.core.util.IntExtractor;
import org.rhq.enterprise.gui.common.framework.PagedDataTableUIBean;
import org.rhq.enterprise.gui.common.paging.PageControlView;
import org.rhq.enterprise.gui.common.paging.PagedListDataModel;
import org.rhq.enterprise.gui.common.paging.ResourceNameDisambiguatingPagedListDataModel;
import org.rhq.enterprise.server.alert.engine.internal.Tuple;
import org.rhq.enterprise.server.resource.ResourceManagerLocal;
import org.rhq.enterprise.server.resource.ResourceTypeManagerLocal;
import org.rhq.enterprise.server.util.LookupUtil;
public class ListResourceGroupMembersUIBean extends PagedDataTableUIBean {
public static final String MANAGED_BEAN_NAME = "ListResourceGroupMembersUIBean";
private ResourceTypeManagerLocal resourceTypeManager = LookupUtil.getResourceTypeManager();
private boolean showRecursiveMembers = false;
private static final IntExtractor<ResourceWithAvailability> RESOURCE_ID_EXTRACTOR = new IntExtractor<ResourceWithAvailability>() {
public int extract(ResourceWithAvailability object) {
return object.getResource().getId();
}
};
public ListResourceGroupMembersUIBean() {
}
public String addNewResources() {
return "addResourcesToGroup";
}
@Override
public DataModel getDataModel() {
if (dataModel == null) {
dataModel = new ListResourceGroupMembersDataModel(PageControlView.ResourceGroupMemberList,
MANAGED_BEAN_NAME);
}
return dataModel;
}
public void setShowRecursiveMembers(boolean showRecursiveMembers) {
this.showRecursiveMembers = showRecursiveMembers;
}
public boolean getShowRecursiveMembers() {
return this.showRecursiveMembers;
}
public int getNumberOfColumns() {
return 4;
}
public List<Tuple<String, Integer>> getResourceTypeCounts() {
Map<String, Integer> typeMap = resourceTypeManager.getResourceTypeCountsByGroup(getSubject(),
getResourceGroup(), getShowRecursiveMembers());
String[] typeNames = typeMap.keySet().toArray(new String[typeMap.keySet().size()]);
Arrays.sort(typeNames, new Comparator<String>() {
// case-insensitive sort
public int compare(String o1, String o2) {
return o1.toLowerCase().compareTo(o2.toLowerCase());
}
});
typeNames = evenlyShuffle(typeNames, getNumberOfColumns());
List<Tuple<String, Integer>> tupleResults = new ArrayList<Tuple<String, Integer>>(typeMap.size());
for (String typeName : typeNames) {
tupleResults.add(new Tuple<String, Integer>(typeName, typeMap.get(typeName)));
}
return tupleResults;
}
private String[] evenlyShuffle(String[] input, int columns) {
int pieces = (input.length / columns) + (input.length % columns);
List<List<String>> outputPieces = new ArrayList<List<String>>();
for (int i = 0; i < pieces; i++) {
outputPieces.add(new ArrayList<String>());
}
for (int i = 0; i < input.length; i++) {
outputPieces.get(i % pieces).add(input[i]);
}
List<String> totalOutput = new ArrayList<String>();
for (int i = 0; i < pieces; i++) {
totalOutput.addAll(outputPieces.get(i));
}
String[] results = totalOutput.toArray(new String[totalOutput.size()]);
return results;
}
protected class ListResourceGroupMembersDataModel extends ResourceNameDisambiguatingPagedListDataModel<ResourceWithAvailability> {
private ResourceManagerLocal resourceManager = LookupUtil.getResourceManager();
public ListResourceGroupMembersDataModel(PageControlView view, String beanName) {
super(view, beanName, true);
}
public PageList<ResourceWithAvailability> fetchDataForPage(PageControl pageControl) {
PageList<ResourceWithAvailability> results = null;
if (getShowRecursiveMembers()) {
results = resourceManager.findImplicitResourceWithAvailabilityByResourceGroup(LookupUtil
.getSubjectManager().getOverlord(), getResourceGroup(), pageControl);
} else {
results = resourceManager.findExplicitResourceWithAvailabilityByResourceGroup(LookupUtil
.getSubjectManager().getOverlord(), getResourceGroup(), pageControl);
}
for (ResourceWithAvailability composite : results) {
ResourceType type = composite.getResource().getResourceType();
ResourceFacets facets = LookupUtil.getResourceTypeManager().getResourceFacets(type.getId());
composite.setResourceFacets(facets);
}
return results;
}
protected IntExtractor<ResourceWithAvailability> getResourceIdExtractor() {
return RESOURCE_ID_EXTRACTOR;
}
}
}