Add a project config option to have validators for all features

Currently a validator has to be configured for each feature, if one
wants to validate all features in a project this become cumbersome.

This adds a configuration option to enable validators for the whole
project.

examples/java-datatable/src/test/resources/cucumber/examples/datatable2.feature

@@ -0,0 +1,47 @@
+#language: en
+#This Feature has no validator enabled in the feature file but in the project preferences!
+Feature: Connection between DataTable Key and a specific Step Value
+
+
+  Scenario: All Keys are related to a Step Value. Example 1  
+    Given the animal "Cat"  
+      | Key 		| Value |
+      | Color 		| Black	|
+      | Lifespan  	| 3 	|
+      | Whiskers	| 24    |
+
+	Then the food is "fish"
+
+
+  Scenario: All Keys are related to a Step Value. Example 2 
+  	Given the animal "Elephant"
+      | Key 		| Value |
+      | Color 		| Grey	|
+      | Lifespan	| 70 	|
+      | Trunk   	| 1.8   |  
+      | Tusk   		| 1.3   |  
+
+    Then the food is "leaves"
+
+
+  Scenario: There are some unrelated Keys to a Step Value. This Keys are available for other Step Value   
+  	Given the animal "Cat" 
+      | Key 		| Value |
+      | Color 		| Black	|
+      | Lifespan  	| 3 	|
+      | Whiskers	| 24    |
+      | Trunk   	| 1.8   |
+
+	Then the food is "fish"
+
+
+  Scenario: There are some unrelated Keys to a Step Value. This Keys are not available for each Step Value  
+  	Given the animal "Cat" 
+      | Key 		| Value |
+      | Color 		| Black	|
+      | Lifespan  	| 3 	|
+      | Whiskers	| 24    |
+      | Wings   	| 2   	|
+
+	Then the food is "fish" 
+

io.cucumber.eclipse.editor/plugin.xml

@@ -323,6 +323,14 @@
 	       </action>
 	   </viewerContribution>
 	 </extension>
-
+	 <extension
+      point="org.eclipse.ui.propertyPages">
+   <page
+         class="io.cucumber.eclipse.editor.properties.CucumberPropertiesPage"
+         icon="icons/cukes.gif"
+         id="cucumber.eclipse.editor.properties.main"
+         name="Cucumber">
+   </page>
+</extension>
 
 </plugin>

io.cucumber.eclipse.editor/src/io/cucumber/eclipse/editor/properties/CucumberPropertiesPage.java

@@ -0,0 +1,72 @@
+package io.cucumber.eclipse.editor.properties;
+
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.ProjectScope;
+import org.eclipse.core.runtime.preferences.IEclipsePreferences;
+import org.eclipse.jface.preference.PreferencePage;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Text;
+import org.eclipse.ui.dialogs.PropertyPage;
+import org.osgi.service.prefs.BackingStoreException;
+
+import io.cucumber.eclipse.editor.Images;
+
+public class CucumberPropertiesPage extends PropertyPage {
+
+	private static final String NAMESPACE = "io.cucumber.eclipse.editor";
+	private static final String KEY_VALIDATION_PLUGINS = "validationPlugins";
+	private Text validationPlugins;
+
+	public CucumberPropertiesPage() {
+		setTitle("Cucumber");
+		setDescription("You can configure Cucumber related properties for your project here");
+		setImageDescriptor(Images.getCukesIconDescriptor());
+		noDefaultAndApplyButton();
+	}
+
+	/**
+	 * @see PreferencePage#createContents(Composite)
+	 */
+	@Override
+	protected Control createContents(Composite parent) {
+		Composite composite = new Composite(parent, SWT.NONE);
+		GridLayout layout = new GridLayout();
+		layout.numColumns = 2;
+		composite.setLayout(layout);
+		Label label = new Label(composite, SWT.NONE);
+		label.setText("Validation Plugins ");
+		label.setToolTipText(
+				"Add a comma seperated list of plugins that should be used for validation regardless of feature settings");
+		validationPlugins = new Text(composite, SWT.BORDER);
+		GridData data = new GridData(GridData.FILL_HORIZONTAL);
+		validationPlugins.setLayoutData(data);
+		return composite;
+	}
+
+	@Override
+	public boolean performOk() {
+		IEclipsePreferences node = getNode(getResource());
+		node.put(KEY_VALIDATION_PLUGINS, validationPlugins.getText());
+		try {
+			node.flush();
+		} catch (BackingStoreException e) {
+		}
+		return true;
+	}
+
+	private IResource getResource() {
+		return getElement().getAdapter(IResource.class);
+	}
+
+	public static IEclipsePreferences getNode(IResource resource) {
+		ProjectScope scope = new ProjectScope(resource.getProject());
+		IEclipsePreferences node = scope.getNode(NAMESPACE);
+		return node;
+	}
+
+}