gov.redhawk.sca.internal.ui.handlers.ConnectDomainHandler.java Source code

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Here is the source code for gov.redhawk.sca.internal.ui.handlers.ConnectDomainHandler.java

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/**
 * This file is protected by Copyright. 
 * Please refer to the COPYRIGHT file distributed with this source distribution.
 * 
 * This file is part of REDHAWK IDE.
 * 
 * All rights reserved.  This program and the accompanying materials are made available under 
 * the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html.
 *
 */
package gov.redhawk.sca.internal.ui.handlers;

import gov.redhawk.model.sca.DomainConnectionState;
import gov.redhawk.model.sca.RefreshDepth;
import gov.redhawk.model.sca.ScaDomainManager;
import gov.redhawk.sca.ui.ScaUiPlugin;
import gov.redhawk.sca.util.PluginUtil;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.expressions.IEvaluationContext;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.handlers.HandlerUtil;

/**
 * The Class InitHandler.
 */
public class ConnectDomainHandler extends AbstractHandler implements IHandler {

    @Override
    public void setEnabled(final Object evaluationContext) {
        if ((evaluationContext != null) && (evaluationContext instanceof IEvaluationContext)) {
            final IEvaluationContext context = (IEvaluationContext) evaluationContext;
            final Object sel = context.getVariable("selection");
            if (sel instanceof IStructuredSelection) {
                final IStructuredSelection ss = (IStructuredSelection) sel;
                boolean enabled = true;
                for (final Object obj : ss.toArray()) {
                    if (PluginUtil.adapt(ScaDomainManager.class, true) != null) {
                        final ScaDomainManager domMgr = PluginUtil.adapt(ScaDomainManager.class, true);
                        if (domMgr.getState().equals(DomainConnectionState.CONNECTED)
                                || domMgr.getState().equals(DomainConnectionState.CONNECTING)) {
                            enabled = false;
                        }
                    }
                }
                this.setBaseEnabled(enabled);
            } else {
                super.setEnabled(evaluationContext);
            }
        }
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public Object execute(final ExecutionEvent event) throws ExecutionException {
        final ISelection selection = HandlerUtil.getActiveMenuSelection(event);
        if (selection instanceof IStructuredSelection) {
            final IStructuredSelection ss = (IStructuredSelection) selection;
            for (final Object obj : ss.toArray()) {
                if (obj instanceof ScaDomainManager) {
                    final ScaDomainManager domMgr = (ScaDomainManager) obj;
                    final Job job = new Job("Connecting Domain") {

                        @Override
                        protected IStatus run(final IProgressMonitor monitor) {
                            monitor.beginTask("Connecting to domain " + domMgr.getName(), IProgressMonitor.UNKNOWN);
                            try {
                                domMgr.connect(monitor, RefreshDepth.SELF);
                                return Status.OK_STATUS;
                            } catch (final Exception e) { // SUPPRESS CHECKSTYLE Logged Catch all exception
                                return new Status(IStatus.ERROR, ScaUiPlugin.PLUGIN_ID,
                                        "Failed to connect to Domain " + domMgr.getName(), e);
                            }
                        }

                    };
                    job.setPriority(Job.LONG);
                    job.setUser(true);
                    job.schedule();
                }
            }
        }
        return null;
    }

}