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package org.dcache.webadmin.controller.util;
import org.apache.wicket.extensions.markup.html.repeater.data.sort.SortOrder;
import org.apache.wicket.extensions.markup.html.repeater.util.SortParam;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.FilenameFilter;
import java.util.Comparator;
import java.util.List;
import org.dcache.webadmin.model.dataaccess.util.rrd4j.RrdSettings;
import org.dcache.webadmin.view.beans.AbstractRegexFilterBean;
import org.dcache.webadmin.view.beans.PoolPlotOptionBean;
import org.dcache.webadmin.view.beans.ThumbnailPanelBean;
import org.dcache.webadmin.view.beans.WebAdminInterfaceSession;
import org.dcache.webadmin.view.panels.poolqueues.PoolQueuePlotsDisplayPanel;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Provider for the view displaying thumbnail links (see
* {@link PoolQueuePlotsDisplayPanel}) to popup displays.
*/
public final class ThumbnailPanelProvider extends
AbstractRegexFilteringProvider<ThumbnailPanelBean, String> {
private static final Logger LOGGER
= LoggerFactory.getLogger(ThumbnailPanelProvider.class);
private static final long serialVersionUID = 9211014459588122003L;
private static final FilenameFilter FILENAME_FILTER = (dir, name) ->
name.contains(RrdSettings.FILE_SUFFIX)
&& !name.contains(RrdSettings.ALL_POOLS);
private static final int MAX_COLS = 8;
public enum Level {
ALL_POOLS,
POOL_GROUPS,
POOLS_OF_GROUP
}
private final File dir;
private final File all;
private final int imgWidth;
private final int imgHeight;
private final String imgType;
public ThumbnailPanelProvider(String plotsDirectoryPath, String imgHeight,
String imgWidth, String imgType) {
checkNotNull(plotsDirectoryPath);
dir = new File(plotsDirectoryPath);
this.imgHeight = Integer.parseInt(imgHeight);
this.imgWidth = Integer.parseInt(imgWidth);
this.imgType = imgType;
all = RrdSettings.getImagePath(imgType, dir, RrdSettings.ALL_POOLS);
}
public Level getLevel() {
return getPoolPlotBean().getLevel();
}
public String getLevelTitle() {
switch (getLevel()) {
case ALL_POOLS:
return "Pool Summary";
case POOL_GROUPS:
return "Pool Groups";
case POOLS_OF_GROUP:
return getName();
default:
return "Error!";
}
}
public String getName() {
return getPoolPlotBean().getName();
}
public int getNumCols() {
double sqrt = Math.sqrt(getFiltered().size());
double lower = Math.floor(sqrt);
return Math.max(1, Math.min(MAX_COLS, (int) lower));
}
public String getOrder() {
return getPoolPlotBean().getOrder();
}
@Override
public SortParam getSort() {
return getPoolPlotBean().getSort();
}
/**
* This method should be called before rendering.
*/
public void refresh() {
LOGGER.trace("refresh called");
PoolPlotOptionBean options = getPoolPlotBean();
LOGGER.debug("current options: {}", options);
List<ThumbnailPanelBean> panels = options.getPanels();
File subdir;
File[] files;
switch (options.getLevel()) {
case POOLS_OF_GROUP:
subdir = new File(dir, RrdSettings.GROUP_DIR + options.getName());
files = subdir.listFiles(FILENAME_FILTER);
break;
case POOL_GROUPS:
subdir = dir;
files = subdir.listFiles(FILENAME_FILTER);
break;
case ALL_POOLS:
default:
subdir = dir;
files = new File[]{all};
}
panels.clear();
if (files == null || files.length == 0) {
return;
}
for (File file : files) {
panels.add(new ThumbnailPanelBean(file, imgHeight, imgWidth));
}
LOGGER.debug("panels are now: {}", panels);
}
public void setLevel(Level level) {
getPoolPlotBean().setLevel(level);
}
public void setName(String name) {
getPoolPlotBean().setName(name);
}
public void setOrder(String order) {
getPoolPlotBean().setOrder(order);
setSort("name", SortOrder.valueOf(order));
}
@Override
public void setSort(SortParam param) {
getPoolPlotBean().setSort(param);
}
@Override
public void setSort(String property, SortOrder order) {
getPoolPlotBean().setSort(property, order);
}
@Override
protected Comparator<ThumbnailPanelBean> getComparator() {
return (p0, p1) -> {
SortParam sort = getSort();
int dir1;
if (sort == null) {
dir1 = 1;
} else {
dir1 = sort.isAscending() ? 1 : -1;
}
Comparable c0 = p0.getName();
Comparable c1 = p1.getName();
if (c0 == null) {
return dir1;
}
return dir1 * c0.compareTo(c1);
};
}
@Override
protected List<ThumbnailPanelBean> getFiltered() {
List<ThumbnailPanelBean> panels = getPoolPlotBean().getPanels();
filterOnExpression(panels);
return panels;
}
protected PoolPlotOptionBean getPoolPlotBean() {
return WebAdminInterfaceSession.getPoolPlotBean();
}
@Override
protected AbstractRegexFilterBean<ThumbnailPanelBean> getRegexBean() {
return WebAdminInterfaceSession.getPoolPlotBean();
}
}