ch.netcetera.eclipse.projectconfig.ui.handler.ProjectStettingsPropertyTester.java Source code

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Here is the source code for ch.netcetera.eclipse.projectconfig.ui.handler.ProjectStettingsPropertyTester.java

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/*
 * Copyright (c) 2009 Netcetera AG and others.
 * 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:
 * - Netcetera AG: initial implementation
 */
package ch.netcetera.eclipse.projectconfig.ui.handler;

import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.jface.preference.IPreferenceStore;

import ch.netcetera.eclipse.projectconfig.ui.ProjectConfigurationUIPlugin;

/**
 * Property tester for workspace settings.
 */
public final class ProjectStettingsPropertyTester extends PropertyTester {

    /**
     * The name of the property whether the settings URL is configured.
     */
    public static final String URL_CONFIGURED = "urlConfigured";

    /**
     * {@inheritDoc}
     */
    @Override
    public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
        if (URL_CONFIGURED.equals(property)) {
            IPreferenceStore preferences = ProjectConfigurationUIPlugin.getDefault().getPreferenceStore();
            String url = preferences.getString(ProjectConfigurationUIPlugin.CONFIG_CMDFILE_URL);
            return url.length() > 0 == toBoolean(expectedValue);
        }
        return false;
    }

    /**
     * Converts the given expected value to a boolean.
     *
     * @param expectedValue the expected value (may be <code>null</code>).
     * @return <code>false</code> if the expected value equals Boolean.FALSE,
     * <code>true</code> otherwise
     */
    private static boolean toBoolean(Object expectedValue) {
        if (expectedValue instanceof Boolean) {
            return ((Boolean) expectedValue).booleanValue();
        }
        return true;
    }
}