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package eu.etaxonomy.taxeditor;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.ui.application.IWorkbenchConfigurer;
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import org.eclipse.ui.application.IWorkbenchWindowConfigurer;
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import org.eclipse.ui.application.WorkbenchAdvisor;
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import org.eclipse.ui.application.WorkbenchWindowAdvisor;
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import org.eclipse.ui.statushandlers.AbstractStatusHandler;
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import org.eclipse.ui.statushandlers.StatusAdapter;
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import org.springframework.remoting.RemoteAccessException;
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import org.springframework.remoting.RemoteConnectFailureException;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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/**
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* <p>ApplicationWorkbenchAdvisor class.</p>
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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 ApplicationWorkbenchAdvisor extends WorkbenchAdvisor {
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private CdmStatusHandler cdmStatusHandler;
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/*
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* (non-Javadoc)
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* @see org.eclipse.ui.application.WorkbenchAdvisor#createWorkbenchWindowAdvisor(org.eclipse.ui.application.IWorkbenchWindowConfigurer)
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*/
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/** {@inheritDoc} */
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@Override
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public WorkbenchWindowAdvisor createWorkbenchWindowAdvisor(
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IWorkbenchWindowConfigurer configurer) {
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return new ApplicationWorkbenchWindowAdvisor(configurer);
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}
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/*
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* (non-Javadoc)
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* @see org.eclipse.ui.application.WorkbenchAdvisor#getInitialWindowPerspectiveId()
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*/
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/**
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* <p>getInitialWindowPerspectiveId</p>
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*
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* @return a {@link java.lang.String} object.
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*/
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@Override
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public String getInitialWindowPerspectiveId() {
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return "eu.etaxonomy.taxeditor.application.perspective.taxonomic";
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}
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/*
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* (non-Javadoc)
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* @see org.eclipse.ui.application.WorkbenchAdvisor#initialize(org.eclipse.ui.application.IWorkbenchConfigurer)
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*/
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/** {@inheritDoc} */
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@Override
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public void initialize(IWorkbenchConfigurer configurer) {
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super.initialize(configurer);
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// Remembers the user's view layout, window size, window location etc.
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// for the next time application is started
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configurer.setSaveAndRestore(true);
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}
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/* (non-Javadoc)
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* @see org.eclipse.ui.application.WorkbenchAdvisor#getWorkbenchErrorHandler()
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*/
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@Override
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public synchronized AbstractStatusHandler getWorkbenchErrorHandler() {
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if (cdmStatusHandler == null) {
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cdmStatusHandler = new CdmStatusHandler();
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}
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return cdmStatusHandler;
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}
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/**
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* Custom status handler for handling scenarios which are
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* not handled by the editor (e.g. runtime exceptions).
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*
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* The default {@link org.eclipse.ui.statushandlers.WorkbenchErrorHandler}
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* is not used or extended because we need a handler for specific scenarios
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* which displays a custom built error dialog.
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*
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* @author cmathew
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*
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*/
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class CdmStatusHandler extends AbstractStatusHandler {
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private Throwable previousT;
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/* (non-Javadoc)
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* @see org.eclipse.ui.statushandlers.AbstractStatusHandler#handle(org.eclipse.ui.statushandlers.StatusAdapter, int)
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*/
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@Override
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public void handle(StatusAdapter statusAdapter, int style)
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{
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if(statusAdapter.getStatus().matches(IStatus.ERROR)) {
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IStatus status = statusAdapter.getStatus();
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Throwable t = statusAdapter.getStatus().getException();
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// NOTE : the global status handling mechanism in the case of
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// runtime exceptions is called twice, once by the application
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// throwing the exception and then by the rcp logging mechanism
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// The check below is to make sure that the same exception is
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// not shown twice in succession.
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if(t != null && previousT == t) {
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return;
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}
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previousT = t;
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// NOTE : Currently we only allow RuntimeExceptions since
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// allowing all kinds of exceptions would also include
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// those in generated status objects coming from from logging triggers
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// leading to a recursive infinite loop of :
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// initial exception thrown -> status handling -> dialog opening + logging of status ->
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// status handling -> dialog opening + logging of status ... and so on
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if(t != null &&
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t instanceof RuntimeException &&
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! "Widget is disposed".equals(t.getMessage()) &&
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! handleKnownRuntimeException(t,statusAdapter.getStatus().getPlugin())) {
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MessagingUtils.errorDialog("Unexpected error",
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null,
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MessagingUtils.UNEXPECTED_ERROR_MESSAGE,
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statusAdapter.getStatus().getPlugin(),
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t,
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true);
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} else if (t != null && ("Widget is disposed".equals(t.getMessage()))){
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MessagingUtils.warn(this.getClass(), t);
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if (PreferencesUtil.isShowUpWidgetIsDisposedMessages()){
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MessagingUtils.errorDialog("Widget is disposed",
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null,
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MessagingUtils.WIDGET_IS_DISPOSED_MESSAGE,
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statusAdapter.getStatus().getPlugin(),
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t,
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true);
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}
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}
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}
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}
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private boolean handleKnownRuntimeException(Throwable t, String pluginId) {
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if(t instanceof RemoteConnectFailureException ||
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t.getCause() instanceof RemoteConnectFailureException) {
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MessagingUtils.errorDialog("Connection Failure",
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null,
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MessagingUtils.CONNECTION_FAILURE_MESSAGE + System.getProperty("line.separator"),
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pluginId,
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t,
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true,
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false);
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return true;
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}
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if(t instanceof RemoteAccessException ||
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t.getCause() instanceof RemoteAccessException) {
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MessagingUtils.errorDialog("Remote Access Error",
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null,
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MessagingUtils.REMOTE_ACCESS_FAILURE_MESSAGE + System.getProperty("line.separator"),
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pluginId,
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t,
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true,
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false);
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return true;
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}
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return false;
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}
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}
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}
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