RemoveDataSourceAction.java

/*
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 *  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *  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
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package com.sun.tools.visualvm.core.ui.actions;

import com.sun.tools.visualvm.core.datasource.DataSource;
import com.sun.tools.visualvm.core.datasupport.Utils;
import java.awt.event.ActionEvent;
import java.util.Set;
import org.openide.util.NbBundle;


/**
 *
 * @author Jiri Sedlacek
 */
class RemoveDataSourceAction extends MultiDataSourceAction<DataSource> {
    
    private static RemoveDataSourceAction instance;
    
    public static synchronized RemoveDataSourceAction instance() {
        if (instance == null) 
            instance = new RemoveDataSourceAction();
        return instance;
    }
    
    
    protected void actionPerformed(Set<DataSource> dataSources, ActionEvent actionEvent) {
        for (DataSource dataSource : dataSources)
            if (checkRemove(dataSource))
                dataSource.getOwner().getRepository().removeDataSource(dataSource);
    }

    protected boolean isEnabled(Set<DataSource> dataSources) {
        for (DataSource dataSource : dataSources)
            if (!dataSource.supportsUserRemove()) return false;
        return Utils.areDataSourcesIndependent(dataSources);
    }
    
    
    private static boolean checkRemove(DataSource dataSource) {
        // Check if the DataSource can be removed
        if (!dataSource.checkRemove(dataSource)) return false;
        
        // Check if all repository DataSources can be removed
        Set<? extends DataSource> repositoryDataSources = dataSource.getRepository().getDataSources();
        for (DataSource repositoryDataSource : repositoryDataSources)
            if (!repositoryDataSource.checkRemove(dataSource)) return false;
        return true;
    }
    
    
    private RemoveDataSourceAction() {
        super(DataSource.class);
        putValue(NAME, NbBundle.getMessage(RemoveDataSourceAction.class, "LBL_Remove"));    // NOI18N
        putValue(SHORT_DESCRIPTION, NbBundle.getMessage(RemoveDataSourceAction.class, "DESCR_Remove"));   // NOI18N
    }
}