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package eu.etaxonomy.taxeditor;
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import org.apache.log4j.Logger;
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import org.eclipse.equinox.p2.core.IProvisioningAgent;
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import org.eclipse.equinox.p2.engine.IProfileRegistry;
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import org.eclipse.equinox.p2.operations.ProvisioningSession;
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import org.eclipse.equinox.p2.ui.Policy;
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import org.eclipse.equinox.p2.ui.ProvisioningUI;
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import org.eclipse.ui.plugin.AbstractUIPlugin;
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import org.osgi.framework.Bundle;
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import org.osgi.framework.BundleContext;
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import org.osgi.framework.ServiceReference;
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import org.osgi.framework.ServiceRegistration;
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import org.osgi.service.packageadmin.PackageAdmin;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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/**
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* The activator class controls the plug-in life cycle
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*
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* @author n.hoffmann
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* @version $Id: $
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*/
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public class TaxonomicEditorPlugin extends AbstractUIPlugin {
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private static final Logger logger = Logger
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.getLogger(TaxonomicEditorPlugin.class);
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// The plug-in ID
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/** Constant <code>PLUGIN_ID="eu.etaxonomy.taxeditor.application"</code> */
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public static final String PLUGIN_ID = "eu.etaxonomy.taxeditor.application";
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// The shared instance
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private static TaxonomicEditorPlugin plugin;
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private PackageAdmin packageAdmin;
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private ServiceReference packageAdminRef;
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/** Constant <code>bundleContext</code> */
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protected static BundleContext bundleContext;
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private ServiceRegistration policyRegistration;
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private ProvisioningSession session;
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private ProvisioningUI ui;
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// private CloudPolicy policy;
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/**
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* The constructor
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*/
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public TaxonomicEditorPlugin() {
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}
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/*
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* (non-Javadoc)
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* @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
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*/
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/** {@inheritDoc} */
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@Override
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public void start(BundleContext context) throws Exception {
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super.start(context);
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plugin = this;
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bundleContext = context;
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packageAdminRef = bundleContext.getServiceReference(PackageAdmin.class.getName());
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packageAdmin = (PackageAdmin) bundleContext.getService(packageAdminRef);
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logger.debug("Taxonomic Editor started.");
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}
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private Bundle getBundle(String symbolicName) {
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if (packageAdmin == null) {
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return null;
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}
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Bundle[] bundles = packageAdmin.getBundles(symbolicName, null);
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if (bundles == null) {
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return null;
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}
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// Return the first bundle that is not installed or uninstalled
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for (int i = 0; i < bundles.length; i++) {
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if ((bundles[i].getState() & (Bundle.INSTALLED | Bundle.UNINSTALLED)) == 0) {
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return bundles[i];
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}
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}
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return null;
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}
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/*
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* (non-Javadoc)
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* @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
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*/
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/** {@inheritDoc} */
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@Override
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public void stop(BundleContext context) throws Exception {
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plugin = null;
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super.stop(context);
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MessagingUtils.info("Taxonomic Editor stopped.");
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}
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/**
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* Returns the shared instance
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*
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* @return the shared instance
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*/
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public static TaxonomicEditorPlugin getDefault() {
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return plugin;
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}
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public static BundleContext getContext() {
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return bundleContext;
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}
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public ProvisioningUI getProvisioningUI() {
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if (ui == null) {
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ServiceReference reference = bundleContext.getServiceReference(IProvisioningAgent.SERVICE_NAME);
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IProvisioningAgent agent = (IProvisioningAgent) bundleContext.getService(reference);
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session = new ProvisioningSession(agent);
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Policy policy = null;// = (Policy) ServiceHelper.getService(ProvUIActivator.getContext(), Policy.class.getName());
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if (policy == null) {
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policy = new Policy();
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}
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ui = new ProvisioningUI(session, IProfileRegistry.SELF, policy);
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}
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return ui;
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}
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}
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