AST datastructure with Simple Parser for Text File Lines and JSON import/export

de.tubs.variantsync.core/pom.xml

@@ -6,10 +6,11 @@
 		<groupId>de.tubs.variantsync</groupId>
 		<artifactId>de.tubs.variantsync</artifactId>
 		<version>0.0.3-SNAPSHOT</version>
+		<relativePath>../pom.xml</relativePath>
 	</parent>
 
 	<artifactId>de.tubs.variantsync.core</artifactId>
 	<packaging>eclipse-plugin</packaging>
 
 	<groupId>de.tubs.variantsync.core</groupId>
-</project>
+</project>

de.tubs.variantsync.core/src/de/tubs/variantsync/core/VariantSyncPlugin.java

@@ -197,11 +197,12 @@ public void listenForActiveClass() {
 	}
 
 	public static void addNature(IProject project) {
-		final VariantSyncProgressMonitor progressMonitor = new VariantSyncProgressMonitor("Adding VariantSync nature to " + project.getName());
+		final VariantSyncProgressMonitor progressMonitor = new VariantSyncProgressMonitor(String.format("Adding VariantSync nature to %s", project.getName()));
 		try {
 			final IProjectDescription description = project.getDescription();
 			final String[] natures = description.getNatureIds();
 
+			// the natures array is copied to a newNatures array, in which the variant NATURE_ID is added as first element
 			final String[] newNatures = new String[natures.length + 1];
 			System.arraycopy(natures, 0, newNatures, 1, natures.length);
 

de.tubs.variantsync.core/src/de/tubs/variantsync/core/exceptions/ProjectNotFoundException.java

@@ -25,7 +25,7 @@ public ProjectNotFoundException(Type type, String message) {
 
 	@Override
 	public String toString() {
-		return "A " + (type == Type.CONFIGURATION ? "configuration project" : "variant") + " does not exist in the workspace. " + getMessage();
+		return String.format("A %s does not exist in the workspace. %s", (type == Type.CONFIGURATION ? "configuration project" : "variant"), getMessage());
 	}
 
 }

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/ConfigurationProjectManager.java

@@ -106,7 +106,7 @@ private List<IFeatureProject> findConfigurationProjects() {
 		for (final IFeatureProject project : CorePlugin.getFeatureProjects()) {
 			// System.out.print(" project " + project.getProjectName());
 			if (project.getComposerID().equals("de.tubs.variantsync.core.composer")) {
-				LogOperations.logInfo("Found configuration project with name: " + project.getProjectName());
+				LogOperations.logInfo(String.format("Found configuration project with name: %s", project.getProjectName()));
 				projects.add(project);
 				// System.out.println(" is variant composing");
 			} else {
@@ -126,7 +126,7 @@ private void findVariants(ConfigurationProject configurationProject) {
 			} else {
 				try {
 					final IMarker m = file.createMarker("de.tubs.variantsync.marker.error");
-					m.setAttribute(IMarker.MESSAGE, "Project " + projectName + " is missing in the workspace");
+					m.setAttribute(IMarker.MESSAGE, String.format("Project %s is missing in the workspace", projectName));
 					m.setAttribute(IMarker.SEVERITY, IMarker.SEVERITY_WARNING);
 					m.setAttribute(IMarker.PRIORITY, IMarker.PRIORITY_HIGH);
 					m.setAttribute(IMarker.LINE_NUMBER, 0);
@@ -176,9 +176,9 @@ public ConfigurationProject getActiveConfigurationProject() {
 	public void propertyChange(FeatureIDEEvent event) {
 		switch (event.getEventType()) {
 		case FEATURE_ADD:
-			LogOperations.logInfo("Feature added: " + event);
+			LogOperations.logInfo(String.format("Feature added: %s", event));
 		case MODEL_DATA_SAVED:
-			LogOperations.logInfo("Model Event" + event);
+			LogOperations.logInfo(String.format("Model Event %s", event));
 			if (event.getSource() instanceof IFeatureModel) {
 				final IFeatureModel model = (IFeatureModel) event.getSource();
 				final List<String> featureExpressions = getActiveConfigurationProject().getFeatureContextManager().getContextsAsStrings();

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/data/ConfigurationProject.java

@@ -38,7 +38,7 @@ public class ConfigurationProject extends AManager implements ISaveableManager {
 	private List<IProject> projects = new ArrayList<>();
 
 	public IFeatureProject getFeatureProject() {
-		if(configurationProject != null && configurationProject.getProject().exists()) {
+		if ((configurationProject != null) && configurationProject.getProject().exists()) {
 			return configurationProject;
 		}
 
@@ -85,8 +85,8 @@ public Configuration getConfigurationForVariant(IProject project) {
 				final IFile configPath = (IFile) EclipseFileSystem.getResource(confPath);
 				final String configFileName = configPath.getName();
 				final String configName = configFileName.substring(0, configFileName.lastIndexOf('.'));
-				System.out.println("[ConfigurationProject.getConfigurationForVariant] Check name equality Project(" + project.getName() + ") with Config("
-					+ configName + ")");
+				System.out.println(String.format("[ConfigurationProject.getConfigurationForVariant] Check name equality Project(%s) with Config(%s)",
+						project.getName(), configName));
 				if (configName.equals(project.getName())) {
 					final ConfigurationManager configurationManager = ConfigurationManager.getInstance(Paths.get(configPath.getRawLocationURI()));
 					if (configurationManager != null) {

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/data/FeatureContext.java

@@ -25,6 +25,7 @@ public FeatureContext(String name, FeatureColor highlighter) {
 	}
 
 	public boolean isComposed() {
+		// if the name contains one of the operators "or", "and" or "not" in its middle, the FeatureContext is supposed to be composed
 		return name.matches(".*(or|and|not).*");
 	}
 

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/persistence/CodeMappingFormat.java

@@ -25,7 +25,8 @@ public class CodeMappingFormat extends AXMLFormat<List<SourceFile>> {
 	private static final String MAPPINGS = "Mappings";
 	private static final String SOURCEFILE = "SourceFile";
 	private static final String CODEMAPPINGS = "CodeMapping";
-	private static final Pattern CONTENT_REGEX = Pattern.compile("\\A\\s*(<[?]xml\\s.*[?]>\\s*)?<" + MAPPINGS + "[\\s>]");
+
+	private static final Pattern CONTENT_REGEX = XMLFormatHelper.createContentRegex(MAPPINGS);
 
 	public static final String FILENAME = ".mapping.xml";
 
@@ -108,5 +109,4 @@ public boolean supportsContent(CharSequence content) {
 	public String getName() {
 		return "CodeMapping";
 	}
-
 }

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/persistence/FeatureContextFormat.java

@@ -18,7 +18,8 @@ public class FeatureContextFormat extends AXMLFormat<List<FeatureContext>> {
 	private static final String ID = "FeatureContexts";
 	private static final String FEATURE_CONTEXTS = "contexts";
 	private static final String FEATURE_CONTEXT = "context";
-	private static final Pattern CONTENT_REGEX = Pattern.compile("\\A\\s*(<[?]xml\\s.*[?]>\\s*)?<" + FEATURE_CONTEXTS + "[\\s>]");
+
+	private static final Pattern CONTENT_REGEX = XMLFormatHelper.createContentRegex(FEATURE_CONTEXTS);
 
 	public static final String FILENAME = ".contexts.xml";
 

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/persistence/PatchFormat.java

@@ -33,7 +33,8 @@ public class PatchFormat extends AXMLFormat<List<IPatch<?>>> {
 	private static final String PATCHES = "Patches";
 	private static final String PATCH = "Patch";
 	private static final String DELTA = "Delta";
-	private static final Pattern CONTENT_REGEX = Pattern.compile("\\A\\s*(<[?]xml\\s.*[?]>\\s*)?<" + PATCHES + "[\\s>]");
+
+	private static final Pattern CONTENT_REGEX = XMLFormatHelper.createContentRegex(PATCHES);
 
 	public static final String FILENAME = ".patches.xml";
 

de.tubs.variantsync.core/src/de/tubs/variantsync/core/managers/persistence/XMLFormatHelper.java

@@ -0,0 +1,12 @@
+package de.tubs.variantsync.core.managers.persistence;
+
+import java.util.regex.Pattern;
+
+public class XMLFormatHelper {
+
+	// the xml pattern should start with an optional standard xml-starting line (e.g. <?xml charSequenceOfArbitraryLength?>)
+	// followed by an xml tag starting with the content string
+	public static Pattern createContentRegex(String content) {
+		return Pattern.compile("\\A\\s*(<[?]xml\\s.*[?]>\\s*)?<" + content + "[\\s>]");
+	}
+}

de.tubs.variantsync.core/src/de/tubs/variantsync/core/nature/CreateVariantProject.java

@@ -53,7 +53,7 @@ public Object execute(ExecutionEvent event) throws ExecutionException {
 	}
 
 	private IProject createJavaProjectWithVariantNature(String projectName) {
-		final VariantSyncProgressMonitor progressMonitor = new VariantSyncProgressMonitor("Create Project " + projectName);
+		final VariantSyncProgressMonitor progressMonitor = new VariantSyncProgressMonitor(String.format("Create Project %s", projectName));
 		// create project
 		final IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
 		final IProject project = root.getProject(projectName);

de.tubs.variantsync.core/src/de/tubs/variantsync/core/patch/APatch.java

@@ -64,7 +64,7 @@ public boolean isEmpty() {
 
 	@Override
 	public String toString() {
-		return "APatch [deltas=" + deltas + "]";
+		return String.format("APatch [deltas= %s ]", deltas);
 	}
 
 	@Override

de.tubs.variantsync.core/src/de/tubs/variantsync/core/patch/DeltaFactoryManager.java

@@ -115,8 +115,8 @@ public IDeltaFactory getExtension(String id) throws NoSuchExtensionException {
 				return extension;
 			}
 		}
-		StringBuilder errorMsg = new StringBuilder("No extension found for ID ").append(id);
-		throw new NoSuchExtensionException(errorMsg.toString());
+		final String errorMsg = String.format("No extension found for ID %s", id);
+		throw new NoSuchExtensionException(errorMsg);
 	}
 
 }

de.tubs.variantsync.core/src/de/tubs/variantsync/core/patch/base/DefaultDelta.java

@@ -21,27 +21,29 @@ public DefaultDelta(IFile res, long timestamp, String factoryId) {
 
 	@Override
 	public String getOriginalAsString() {
-		String ret = String.valueOf(original.getPosition());
-		ret = ret + ":;:";
+		StringBuilder ret = new StringBuilder(String.valueOf(original.getPosition()));
+		ret.append(":;:");
 
 		for (final String line : original.getLines()) {
-			ret = ret + line + "#:#";
+			ret.append(line);
+			ret.append("#:#");
 		}
-		ret = ret.substring(0, ret.lastIndexOf("#:#"));
-		ret = ret + ":;:";
+		ret = new StringBuilder(ret.substring(0, ret.lastIndexOf("#:#")));
+		ret.append(":;:");
 
 		for (final String bLine : original.getBefore()) {
-			ret = ret + bLine + "#:#";
+			ret.append(bLine);
+			ret.append("#:#");
 		}
-		ret = ret.substring(0, ret.lastIndexOf("#:#"));
-		ret = ret + ":;:";
+		ret = new StringBuilder(ret.substring(0, ret.lastIndexOf("#:#")));
+		ret.append(":;:");
 
 		for (final String aLine : original.getAfter()) {
-			ret = ret + aLine + "#:#";
+			ret.append(aLine);
+			ret.append("#:#");
 		}
-		ret = ret.substring(0, ret.lastIndexOf("#:#"));
 
-		return ret;
+		return ret.substring(0, ret.lastIndexOf("#:#"));
 	}
 
 	@Override
@@ -58,33 +60,36 @@ public void setOriginalFromString(String original) {
 
 	@Override
 	public String getRevisedAsString() {
-		String ret = String.valueOf(revised.getPosition());
-		ret = ret + ":;:";
+		StringBuilder ret = new StringBuilder(String.valueOf(revised.getPosition()));
+		ret.append(":;:");
 
 		for (final String line : revised.getLines()) {
-			ret = ret + line + "#:#";
+			ret.append(line);
+			ret.append("#:#");
 		}
 		if (!revised.getLines().isEmpty()) {
-			ret = ret.substring(0, ret.lastIndexOf("#:#"));
+			ret = new StringBuilder(ret.substring(0, ret.lastIndexOf("#:#")));
 		}
-		ret = ret + ":;:";
+		ret.append(":;:");
 
 		for (final String bLine : revised.getBefore()) {
-			ret = ret + bLine + "#:#";
+			ret.append(bLine);
+			ret.append("#:#");
 		}
 		if (!revised.getBefore().isEmpty()) {
-			ret = ret.substring(0, ret.lastIndexOf("#:#"));
+			ret = new StringBuilder(ret.substring(0, ret.lastIndexOf("#:#")));
 		}
-		ret = ret + ":;:";
+		ret.append(":;:");
 
 		for (final String aLine : revised.getAfter()) {
-			ret = ret + aLine + "#:#";
+			ret.append(aLine);
+			ret.append("#:#");
 		}
 		if (!revised.getAfter().isEmpty()) {
-			ret = ret.substring(0, ret.lastIndexOf("#:#"));
+			ret = new StringBuilder(ret.substring(0, ret.lastIndexOf("#:#")));
 		}
 
-		return ret;
+		return ret.toString();
 	}
 
 	@Override
@@ -101,7 +106,7 @@ public void setRevisedFromString(String revised) {
 
 	@Override
 	public String getRepresentation() {
-		return "--- (" + original.getPosition() + ") " + original.getLines() + "\n" + "+++ (" + revised.getPosition() + ") " + revised.getLines();
+		return String.format("--- (%s) %s%n+++ (%s) %s", original.getPosition(), original.getLines(), revised.getPosition(), revised.getLines());
 	}
 
 	@Override

de.tubs.variantsync.core/src/de/tubs/variantsync/core/patch/base/DefaultDeltaFactory.java

@@ -52,7 +52,7 @@ public static IDeltaFactory<?> getInstance() {
 
 	@Override
 	public String toString() {
-		return "DefaultDeltaFactory [getId()=" + getId() + ", getName()=" + getName() + "]";
+		return String.format("DefaultDeltaFactory [getId()=%s, getName()=%s]", getId(), getName());
 	}
 
 	@Override

de.tubs.variantsync.core/src/de/tubs/variantsync/core/patch/base/DefaultMarkerHandler.java

@@ -25,6 +25,8 @@ public List<IVariantSyncMarker> getMarkersForDeltas(IFile file, List<IDelta<Chun
 		final List<IVariantSyncMarker> variantSyncMarkers = new ArrayList<>();
 		for (final IDelta<Chunk<String>> delta : deltas) {
 			final Chunk revised = delta.getRevised();
+			// For the display of markers, the utilities.MarkerUtils.setMarker-method uses Editor/Document-information provided by IDocument.
+			// IDocument is 0-based (so the first line is line 0 in IDocument), which means that every line number has to be reduced by 1
 			final IVariantSyncMarker variantSyncMarker = new AMarkerInformation(revised.getPosition() - 1, revised.getLines().size() - 1, true);
 			variantSyncMarker.setContext(delta.getContext());
 			variantSyncMarkers.add(variantSyncMarker);

de.tubs.variantsync.core/src/de/tubs/variantsync/core/patch/base/DefaultPatchFactory.java

@@ -36,7 +36,7 @@ public IFile applyDelta(IFile file, IPatch<?> patch) {
 				final IDeltaFactory<?> factory = DeltaFactoryManager.getFactoryById(delta.getFactoryId());
 				newFile = factory.applyDelta(newFile, delta);
 			} catch (final NoSuchExtensionException e) {
-				LogOperations.logError("Could not find extension with id: " + delta.getFactoryId(), e);
+				LogOperations.logError(String.format("Could not find extension with id: %s", delta.getFactoryId()), e);
 			}
 		}
 		return newFile;

de.tubs.variantsync.core/src/de/tubs/variantsync/core/syncronization/ResourceCompareInput.java

@@ -68,7 +68,7 @@ class MyDiffNode extends DiffNode {
 
 		@Override
 		public String toString() {
-			return "MyDiffNode [fDirty=" + fDirty + ", fLastId=" + fLastId + ", fLastName=" + fLastName + "]";
+			return String.format("MyDiffNode [fDirty=%s, fLastId=%s, fLastName=%s]", fDirty, fLastId, fLastName);
 		}
 
 		private boolean fDirty = false;
@@ -99,7 +99,7 @@ public String getName() {
 				fLastName = super.getName();
 			}
 			if (fDirty) {
-				return '<' + fLastName + '>';
+				return String.format("<%s>", fLastName);
 			}
 			return fLastName;
 		}

de.tubs.variantsync.core/src/de/tubs/variantsync/core/syncronization/compare/DeltaCompareViewer.java

@@ -17,7 +17,7 @@
 @Deprecated
 public class DeltaCompareViewer extends Wizard {
 
-	public static final String ID = VariantSyncPlugin.PLUGIN_ID + ".views.synchronization.compare";
+	public static final String ID = String.format("%s.views.synchronization.compare", VariantSyncPlugin.PLUGIN_ID);
 	private final DeltaCompareViewerPage page;
 	private final IFile file;
 	private final IDelta<?> delta;

de.tubs.variantsync.core/src/de/tubs/variantsync/core/syncronization/compare/DeltaCompareViewerPage.java

@@ -75,13 +75,13 @@ public void createControl(Composite parent) {
 	}
 
 	public List<String> getSourceCode() {
-		return Arrays.asList(sourceViewer.getDocument().get().split("\n"));
+		return Arrays.asList(sourceViewer.getDocument().get().split(String.format("%n")));
 	}
 
 	private String getStringFromList(List<String> entries) {
 		String str = "";
 		for (final String el : entries) {
-			str += el + "\n";
+			str += String.format("%s%n", el);
 		}
 		return str;
 	}

de.tubs.variantsync.core/src/de/tubs/variantsync/core/utilities/MarkerUtils.java

@@ -139,7 +139,7 @@ private static long addMarker(IResource res, int posStart, int posEnd, FeatureCo
 			IMarker marker = null;
 			if (res.exists()) {
 				marker = res.createMarker(getMarker(featureContext.highlighter));
-				marker.setAttribute(IMarker.MESSAGE, "Feature: " + featureContext.name);
+				marker.setAttribute(IMarker.MESSAGE, String.format("Feature: %s", featureContext.name));
 				marker.setAttribute(IMarker.CHAR_START, posStart);
 				marker.setAttribute(IMarker.CHAR_END, posEnd);
 				return marker.getId();

de.tubs.variantsync.core/src/de/tubs/variantsync/core/utilities/PerspectiveFactory.java

@@ -19,7 +19,7 @@
  */
 public class PerspectiveFactory implements IPerspectiveFactory {
 
-	public static final String ID = VariantSyncPlugin.PLUGIN_ID + ".perspective";
+	public static final String ID = String.format("%s.perspective", VariantSyncPlugin.PLUGIN_ID);
 
 	@Override
 	public void createInitialLayout(IPageLayout layout) {

de.tubs.variantsync.core/src/de/tubs/variantsync/core/utilities/Tree.java

@@ -99,10 +99,10 @@ public String toString() {
 		if (root != null) {
 			int i = 0;
 			TreeNode currentNode = root;
-			String ret = root.toString() + "\n";
+			String ret = String.format("%s%n", root.toString());
 			while ((currentNode == null) && (i < currentNode.getNumberOfChildren())) {
 				currentNode = currentNode.getChildAt(i);
-				ret = ret + currentNode.toString() + "\n";
+				ret += String.format("%s%n", currentNode.toString());
 				i++;
 			}
 			return ret;

de.tubs.variantsync.core/src/de/tubs/variantsync/core/utilities/event/VariantSyncEvent.java

@@ -143,7 +143,7 @@ public Object getNewValue() {
 
 	@Override
 	public String toString() {
-		return "VariantSyncEvent [source=" + source + ", eventType=" + eventType + ", oldValue=" + oldValue + ", newValue=" + newValue + "]";
+		return String.format("VariantSyncEvent [source=%s, eventType=%s, oldValue=%s, newValue=%s]", source, eventType, oldValue, newValue);
 	}
 
 }

de.tubs.variantsync.core/src/de/tubs/variantsync/core/view/editor/PartAdapter.java

@@ -117,7 +117,7 @@ public IStatus runInUIThread(IProgressMonitor monitor) {
 			try {
 				MarkerUtils.cleanResource(currentFile);
 			} catch (final CoreException e) {
-				LogOperations.logError("Cannot clear all markers from: " + currentFile.getFullPath(), e);
+				LogOperations.logError(String.format("Cannot clear all markers from: %s", currentFile.getFullPath()), e);
 			}
 
 			final ConfigurationProject configurationProject = VariantSyncPlugin.getActiveConfigurationProject();

de.tubs.variantsync.core/src/de/tubs/variantsync/core/view/featurecontext/FeatureContextManager.java

@@ -14,7 +14,7 @@
  */
 public class FeatureContextManager extends Wizard {
 
-	public static final String ID = VariantSyncPlugin.PLUGIN_ID + ".views.featurecontexts.manage";
+	public static final String ID = String.format("%s.views.featurecontexts.manage", VariantSyncPlugin.PLUGIN_ID);
 
 	private final List<FeatureContext> expressions;