| /******************************************************************************* |
| * Copyright (c) 2014, 2015 Red Hat. |
| * 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 |
| * |
| * Contributors: |
| * Red Hat - Initial Contribution |
| *******************************************************************************/ |
| |
| package org.eclipse.linuxtools.internal.docker.ui.propertytesters; |
| |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.linuxtools.docker.core.EnumDockerStatus; |
| import org.eclipse.linuxtools.docker.core.IDockerContainer; |
| |
| /** |
| * @author xcoulon |
| * |
| */ |
| public class ContainerPropertyTester extends PropertyTester { |
| |
| /** Property name to check if a given {@link IDockerContainer} is running. */ |
| public static final String IS_RUNNING = "isRunning"; |
| |
| /** Property name to check if a given {@link IDockerContainer} is stopped (exited). */ |
| public static final String IS_STOPPED = "isStopped"; |
| |
| /** Property name to check if a given {@link IDockerContainer} is paused. */ |
| public static final String IS_PAUSED = "isPaused"; |
| |
| /** |
| * Property name to check if a given {@link IDockerContainer} can be |
| * deleted. |
| */ |
| public static final String IS_REMOVABLE = "isRemovable"; |
| |
| /** |
| * Property name to check if a given {@link IDockerContainer} is unknown. |
| */ |
| public static final String IS_UNKNOWN = "isUnknown"; |
| |
| @Override |
| public boolean test(final Object receiver, final String property, final Object[] args, final Object expectedValue) { |
| if (receiver instanceof IDockerContainer) { |
| IDockerContainer container = (IDockerContainer) receiver; |
| /* |
| * The 'receiver' is not updated if the selection remains unchanged |
| * but a context menu command may have modified container state |
| * requiring a change in menu items. |
| */ |
| final IDockerContainer newContainer = container.getConnection().getContainer(container.id()); |
| if (newContainer != null) { |
| container = newContainer; |
| } |
| switch (property) { |
| case IS_RUNNING: |
| return checkIfStateMatchesExpectation(container, EnumDockerStatus.RUNNING, expectedValue); |
| case IS_STOPPED: |
| return checkIfStateMatchesExpectation(container, |
| EnumDockerStatus.STOPPED, expectedValue); |
| case IS_UNKNOWN: |
| return checkIfStateMatchesExpectation(container, |
| EnumDockerStatus.UNKNOWN, expectedValue); |
| case IS_PAUSED: |
| return checkIfStateMatchesExpectation(container, EnumDockerStatus.PAUSED, expectedValue); |
| case IS_REMOVABLE: |
| return checkIfStateMatchesExpectation(container, |
| EnumDockerStatus.STOPPED, expectedValue) |
| || checkIfStateMatchesExpectation(container, |
| EnumDockerStatus.UNKNOWN, expectedValue); |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Checks if the status of the given {@link IDockerContainer} |
| * |
| * @param container the given {@link IDockerContainer} |
| * @param expectedStatus the {@link IDockerContainer} status to check |
| * @param expectedMatch the container status result to check |
| * @return {@code true} if the current status matches the expectation, {@code false} otherwise. |
| */ |
| private boolean checkIfStateMatchesExpectation(final IDockerContainer container, final EnumDockerStatus expectedStatus, final Object expectedMatch) { |
| if(expectedMatch == null) { |
| return false; |
| } |
| final EnumDockerStatus containerStatus = EnumDockerStatus.fromStatusMessage(container.status()); |
| return expectedMatch.equals((containerStatus == expectedStatus)); |
| } |
| |
| /** |
| * Check if the given IStructuredSelection containing IDockerContainer |
| * elements are all in the specified state |
| * @param ss an IStructuredSelection of IDockerContainer elements |
| * @param state the state of the IDockerContainer to test |
| * @return true if all IDockerContainer elements match the specified |
| * and false otherwise. |
| */ |
| private static boolean checkState(IStructuredSelection ss, EnumDockerStatus state) { |
| if (ss.toList().isEmpty()) { |
| return false; |
| } |
| for (Object o : ss.toList()) { |
| IDockerContainer c = (IDockerContainer) o; |
| if (EnumDockerStatus.fromStatusMessage(c.status()) != state) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * Check if any of the given IStructuredSelection containing IDockerContainer |
| * elements are in the specified state |
| * @param ss an IStructuredSelection of IDockerContainer elements |
| * @param state the state of the IDockerContainer to test |
| * @return true if any IDockerContainer elements match the specified |
| * and false otherwise. |
| */ |
| private static boolean checkAnyState(IStructuredSelection ss, EnumDockerStatus state) { |
| if (ss.toList().isEmpty()) { |
| return false; |
| } |
| for (Object o : ss.toList()) { |
| IDockerContainer c = (IDockerContainer) o; |
| if (EnumDockerStatus.fromStatusMessage(c.status()) == state) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| public static boolean isStopped(IStructuredSelection ss) { |
| return checkState(ss, EnumDockerStatus.STOPPED); |
| } |
| |
| public static boolean isRunning(IStructuredSelection ss) { |
| return checkState(ss, EnumDockerStatus.RUNNING); |
| } |
| |
| public static boolean isPaused(IStructuredSelection ss) { |
| return checkState(ss, EnumDockerStatus.PAUSED); |
| } |
| |
| public static boolean isAnyRunning(IStructuredSelection ss) { |
| return checkAnyState(ss, EnumDockerStatus.RUNNING); |
| } |
| |
| } |