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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
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*
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package com.sun.tools.visualvm.core.ui;
import com.sun.tools.visualvm.core.datasource.DataSource;
import com.sun.tools.visualvm.core.snapshot.Snapshot;
import com.sun.tools.visualvm.core.ui.components.DataViewComponent;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
/**
* Extensible DataSourceViewProvider with support for customizations via DataSourceViewPluginProvider.
*
* @author Jiri Sedlacek
*/
public abstract class PluggableDataSourceViewProvider<X extends DataSource> extends DataSourceViewProvider<X> {
/**
* Set defining all pluggable locations.
*/
public static final Set<Integer> ALL_LOCATIONS;
static {
ALL_LOCATIONS = new HashSet();
ALL_LOCATIONS.add(DataViewComponent.TOP_LEFT);
ALL_LOCATIONS.add(DataViewComponent.TOP_RIGHT);
ALL_LOCATIONS.add(DataViewComponent.BOTTOM_LEFT);
ALL_LOCATIONS.add(DataViewComponent.BOTTOM_RIGHT);
}
private final Set<DataSourceViewPluginProvider<X>> pluginProviders =
Collections.synchronizedSet(new HashSet());
private final Map<X, Set<DataSourceViewPluginProvider<X>>> pluginProvidersCache =
Collections.synchronizedMap(new HashMap());
/**
* Registers new DataSourceViewPluginProvider.
*
* @param pluginProvider DataSourceViewPluginProvider to register.
*/
public final void registerPluginProvider(DataSourceViewPluginProvider<X> pluginProvider) {
pluginProviders.add(pluginProvider);
}
/**
* Unregisters DataSourceViewPluginProvider.
*
* @param pluginProvider DataSourceViewPluginProvider to unregister.
*/
public final void unregisterPluginProvider(DataSourceViewPluginProvider<X> pluginProvider) {
pluginProviders.remove(pluginProvider);
}
/**
* Returns Set of all locations of the DataSourceView which can be customized by DataSourceViewPluginProviders.
*
* @param view DataSourceView to be customized.
* @return Set of all locations of the DataSourceView which can be customized by DataSourceViewPluginProviders.
*/
public abstract Set<Integer> getPluggableLocations(DataSourceView view);
/**
* Saves the DataSourceView for the DataSource into the Snapshot.
*
* @param dataSource DataSource for which to save the view.
* @param snapshot Snapshot into which to save the view.
*/
protected void saveView(X dataSource, Snapshot snapshot) {
};
void viewSaveView(X dataSource, Snapshot snapshot) {
super.viewSaveView(dataSource, snapshot);
Set<DataSourceViewPluginProvider<X>> providers = getProviders(dataSource, false);
for (DataSourceViewPluginProvider<X> provider : providers)
if (provider.supportsSavePluginFor(dataSource, snapshot.getClass()))
provider.savePlugin(dataSource, snapshot);
}
void processCreatedComponent(DataSourceView view, DataViewComponent component) {
X dataSource = (X)view.getDataSource();
Set<DataSourceViewPluginProvider<X>> providers = getProviders(dataSource, true);
for (DataSourceViewPluginProvider<X> provider : providers) {
Set<Integer> pluggableLocations = getPluggableLocations(view);
DataSourceViewPlugin plugin = provider.getPlugin(dataSource);
for (int pluggableLocation : pluggableLocations) {
DataViewComponent.DetailsView pluginView = plugin.createView(pluggableLocation);
if (pluginView != null) component.addDetailsView(pluginView, pluggableLocation);
}
}
}
void viewWillBeAdded(DataSourceView view) {
X dataSource = (X)view.getDataSource();
Set<DataSourceViewPluginProvider<X>> providers = getProviders(dataSource, true);
for (DataSourceViewPluginProvider<X> provider : providers)
provider.getPlugin(dataSource).pluginWillBeAdded();
}
void viewAdded(DataSourceView view) {
X dataSource = (X)view.getDataSource();
Set<DataSourceViewPluginProvider<X>> providers = getProviders(dataSource, true);
for (DataSourceViewPluginProvider<X> provider : providers)
provider.getPlugin(dataSource).pluginAdded();
}
void viewRemoved(DataSourceView view) {
X dataSource = (X)view.getDataSource();
Set<DataSourceViewPluginProvider<X>> providers = getProviders(dataSource, true);
for (DataSourceViewPluginProvider<X> provider : providers)
provider.getPlugin(dataSource).pluginRemoved();
pluginProvidersCache.remove(dataSource);
super.viewRemoved(view);
}
private Set<DataSourceViewPluginProvider<X>> getProviders(X dataSource, boolean cache) {
Set<DataSourceViewPluginProvider<X>> providers = pluginProvidersCache.get(dataSource);
if (providers != null) return providers;
providers = new HashSet(pluginProviders);
Set<DataSourceViewPluginProvider<X>> compatibleProviders = new HashSet();
for (DataSourceViewPluginProvider<X> provider : providers)
if (provider.supportsPluginFor(dataSource))
compatibleProviders.add(provider);
if (cache) pluginProvidersCache.put(dataSource, compatibleProviders);
return compatibleProviders;
}
}