org.eclipse.ui.preferences.ScopedPreferenceStore#setValue ( )源码实例Demo

/**
 * Reads the extension points for the plotting systems registered and returns
 * a plotting system based on the users current preferences.
 * 
 * @return
 */
@SuppressWarnings("unchecked")
public static <T> IPlottingSystem<T> createPlottingSystem() throws Exception {

	final ScopedPreferenceStore store = new ScopedPreferenceStore(InstanceScope.INSTANCE,"org.dawb.workbench.ui");
	String plotType = store.getString("org.dawb.plotting.system.choice");
	if (plotType.isEmpty()) plotType = System.getProperty("org.dawb.plotting.system.choice");// For Geoff et. al. can override.
	if (plotType==null) plotType = "org.dawb.workbench.editors.plotting.lightWeightPlottingSystem"; // That is usually around

	IPlottingSystem<T> system = createPlottingSystem(plotType);
	if (system!=null) return system;

	IConfigurationElement[] systems = Platform.getExtensionRegistry().getConfigurationElementsFor("org.eclipse.dawnsci.plotting.api.plottingClass");
	if (systems.length == 0) {
		return null;
	}

	IPlottingSystem<T> ifnotfound = (IPlottingSystem<T>)systems[0].createExecutableExtension("class");
	store.setValue("org.dawb.plotting.system.choice", systems[0].getAttribute("id"));
	return ifnotfound;
}
 

@Before
public void setUpLaunch() throws DebugException {
	this.launchManager = DebugPlugin.getDefault().getLaunchManager();
	removeAllLaunches();
	ScopedPreferenceStore prefs = new ScopedPreferenceStore(InstanceScope.INSTANCE, "org.eclipse.debug.ui");
	prefs.setValue("org.eclipse.debug.ui.switch_perspective_on_suspend", MessageDialogWithToggle.ALWAYS);
}
 

@SuppressWarnings("deprecation")
@Test public void testChainedPreferenceStore() {
	ScopedPreferenceStore configurationStore = new ScopedPreferenceStore(new ConfigurationScope(), LANGUAGE_ID);
	configurationStore.setValue("someInt", 12);
	configurationStore.setValue("anotherInt", 12);
	configurationStore.setDefault("thirdInt", 12);
	ScopedPreferenceStore instanceStore = new ScopedPreferenceStore(new InstanceScope(), LANGUAGE_ID);
	instanceStore.setValue("someInt", 13);
	instanceStore.setDefault("anotherInt", 13);
	ChainedPreferenceStore chainedStore = new ChainedPreferenceStore(new IPreferenceStore[] { instanceStore, configurationStore });
	assertEquals(13, chainedStore.getInt("someInt"));
	assertEquals(13, chainedStore.getInt("anotherInt"));
	assertEquals(12, chainedStore.getInt("thirdInt"));
}
 

private IProject getProject(String encoding) throws CoreException {
	IProject project = workbenchTestHelper.getProject();
	ScopedPreferenceStore projectPreferenceStore = new ScopedPreferenceStore(new ProjectScope(project),	Platform.PI_RUNTIME);
	projectPreferenceStore.setValue(Platform.PREF_LINE_SEPARATOR, "\n");
	project.setDefaultCharset(encoding, null);
	return project;
}
 

private void testSeparator(String separator) throws Exception {
	IProject project = workbenchTestHelper.getProject();
	ScopedPreferenceStore projectPreferenceStore = new ScopedPreferenceStore(new ProjectScope(project), Platform.PI_RUNTIME);
	projectPreferenceStore.setValue(Platform.PREF_LINE_SEPARATOR, separator);
	workbenchTestHelper.createFile("Foo.xtend", "class Foo {}");
	waitForBuild();
	IFile compiledFile = project.getFile("xtend-gen/Foo.java");
	workbenchTestHelper.getFiles().add(compiledFile);
	String contents = WorkbenchTestHelper.getContentsAsString(compiledFile);
	List<String> expectedLines = ImmutableList.of("@SuppressWarnings(\"all\")", "public class Foo {", "}", "");
	String expectedContent = Joiner.on(separator).join(expectedLines);
	assertEquals(expectedContent, contents);
}
 

private void saveUseProjectSettings(boolean isProjectSpecific) throws IOException {
	ScopedPreferenceStore store = (ScopedPreferenceStore) getPreferenceStore();
	store.setValue(useProjectSettingsPreferenceName(), Boolean.toString(isProjectSpecific));
	store.save();
}