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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.qpid.management.ui.actions;
import static org.apache.qpid.management.ui.Constants.ERROR_SERVER_CONNECTION;
import java.io.IOException;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLHandshakeException;
import javax.net.ssl.SSLKeyException;
import javax.net.ssl.SSLPeerUnverifiedException;
import org.apache.qpid.management.ui.ApplicationRegistry;
import org.apache.qpid.management.ui.ApplicationWorkbenchAdvisor;
import org.apache.qpid.management.ui.Constants;
import org.apache.qpid.management.ui.exceptions.ManagementConsoleException;
import org.apache.qpid.management.ui.jmx.MBeanUtility;
import org.apache.qpid.management.ui.views.NavigationView;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
public class AbstractAction
{
private NavigationView _navigationView;
protected IWorkbenchWindow _window;
public static final String INVALID_PERSPECTIVE = "Invalid Perspective";
public static final String CHANGE_PERSPECTIVE = "Please use the Qpid Management Perspective";
private static final String SSL_EMPTY_TRUSTANCHORS = "the trustAnchors parameter must be non-empty";
private static final String SSL_UNABLE_TO_FIND_CERTPATH = "sun.security.provider.certpath.SunCertPathBuilderException: " +
"unable to find valid certification path to requested target";
/**
* We will cache window object in order to
* be able to provide parent shell for the message dialog.
* @see IWorkbenchWindowActionDelegate#init
*/
public void init(IWorkbenchWindow window)
{
this._window = window;
if (_window.getShell() != null)
{
_window.getShell().setImage(ApplicationRegistry.getImage(Constants.CONSOLE_IMAGE));
}
}
protected NavigationView getNavigationView()
{
if (_navigationView == null)
{
_navigationView = (NavigationView)_window.getActivePage().findView(NavigationView.ID);
}
return _navigationView;
}
protected void handleException(Throwable ex, String title, String msg)
{
//ensure first that the exception is not due to running in the wrong eclipse perspective
NavigationView view = (NavigationView)_window.getActivePage().findView(NavigationView.ID);
if (view == null)
{
IStatus status = new Status(IStatus.WARNING, ApplicationWorkbenchAdvisor.PERSPECTIVE_ID,
IStatus.OK, CHANGE_PERSPECTIVE, null);
ErrorDialog.openError(_window.getShell(), "Warning", INVALID_PERSPECTIVE, status);
return;
}
//default title if none given
if (title == null)
{
title = ERROR_SERVER_CONNECTION;
}
//determine the error message to display
if (msg == null)
{
if (ex instanceof SSLException)
{
if (ex instanceof SSLKeyException)
{
msg = "SSL key was invalid, please check the certificate configuration.";
//Display error dialogue and return
displayErrorDialogue(msg, title);
return;
}
else if (ex instanceof SSLPeerUnverifiedException)
{
msg = "SSL peer identity could not be verified, please ensure valid certificate configuration.";
//Display error dialogue and return
displayErrorDialogue(msg, title);
return;
}
else if (ex instanceof SSLHandshakeException)
{
if (ex.getMessage().contains(SSL_UNABLE_TO_FIND_CERTPATH))
{
msg = "Unable to certify the provided SSL certificate using the current SSL trust store.";
}
else
{
//cause unknown, provide a trace too
MBeanUtility.printStackTrace(ex);
msg = "SSL handhshake error.";
}
//Display error dialogue and return
displayErrorDialogue(msg, title);
return;
}
else
{
//general SSL Exception.
if (ex.getMessage().contains(SSL_EMPTY_TRUSTANCHORS))
{
msg = "Unable to locate the specified SSL certificate trust store, please check the configuration.";
}
else
{
//cause unknown, print stack trace
MBeanUtility.printStackTrace(ex);
msg = "SSL connection error.";
}
//Display error dialogue and return
displayErrorDialogue(msg, title);
return;
}
}
else if (ex instanceof IOException || ex instanceof SecurityException )
{
msg = ex.getMessage();
//if msg is still null, try reporting the cause.
if ((msg == null) && (ex.getCause() != null))
{
msg = ex.getCause().getMessage();
}
//Display error dialogue and return
displayErrorDialogue(msg, title);
return;
}
else if (ex instanceof ManagementConsoleException)
{
msg = ex.getMessage();
displayErrorDialogue(msg, title);
return;
}
else
{
//Unknown exception type/reason.
msg = ex.getMessage();
}
//if msg is still null, try reporting the cause.
if ((msg == null) && (ex.getCause() != null))
{
msg = ex.getCause().getMessage();
}
//failing all else, default non-descript error message.
if (msg == null)
{
msg = "An unknown error has occured.";
}
}
//Display error dialogue and print the exception stack trace
MBeanUtility.printStackTrace(ex);
displayErrorDialogue(msg, title);
}
private void displayErrorDialogue(String msg, String title)
{
IStatus status = new Status(IStatus.ERROR, ApplicationWorkbenchAdvisor.PERSPECTIVE_ID,
IStatus.OK, msg, null);
ErrorDialog.openError(_window.getShell(), "Error", title, status);
}
/**
* Selection in the workbench has been changed. We can change the state of the 'real' action here
* if we want, but this can only happen after the delegate has been created.
* @see IWorkbenchWindowActionDelegate#selectionChanged
*/
public void selectionChanged(IAction action, ISelection selection) {
}
/**
* We can use this method to dispose of any system resources we previously allocated.
* @see IWorkbenchWindowActionDelegate#dispose
*/
public void dispose() {
}
}
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