Merge branch 'dev' into 'master'

Version 3.17.0 Release

See merge request !28

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/tesselation/JoglTesselator.java

@@ -33,7 +33,7 @@ import de.hft.stuttgart.citydoctor2.datastructure.Vertex;
 import de.hft.stuttgart.citydoctor2.math.Vector3d;
 
 /**
- * Tesselator to create triangles out of polygons.
+ * Tesselator to create triangles out of polygons. Uses JOGL implementation.
  * 
  * @author Matthias Betz
  *
@@ -102,6 +102,10 @@ public class JoglTesselator {
 	}
 
 	public static TesselatedPolygon tesselatePolygon(Polygon p) {
+		return tesselatePolygon(p, true);
+	}
+	
+	public static TesselatedPolygon tesselatePolygon(Polygon p, boolean discardDegeneratedTriangles) {
 		ArrayList<Vector3d> vertices = new ArrayList<>();
 		Vector3d normal = p.calculateNormalNormalized();
 		synchronized (tess) {
@@ -121,7 +125,7 @@ public class JoglTesselator {
 			GLU.gluTessEndPolygon(tess);
 			ArrayList<Integer> indices = new ArrayList<>();
 			for (Primitive primitive : primitives) {
-				primitive.fillListWithIndices(indices);
+				primitive.fillListWithIndices(indices, discardDegeneratedTriangles);
 			}
 			primitives.clear();
 			return new TesselatedPolygon(vertices, indices, p);
@@ -137,7 +141,7 @@ public class JoglTesselator {
 		GLU.gluTessEndContour(tess);
 	}
 
-	public static TesselatedRing tesselateRing(LinearRing r) {
+	public static TesselatedRing tesselateRing(LinearRing r, boolean discardDegeneratedTriangles) {
 		ArrayList<Vector3d> vertices = new ArrayList<>();
 		Vector3d normal = r.calculateNormal();
 		synchronized (tess) {
@@ -147,13 +151,17 @@ public class JoglTesselator {
 			GLU.gluTessEndPolygon(tess);
 			ArrayList<Integer> indices = new ArrayList<>();
 			for (Primitive primitive : primitives) {
-				primitive.fillListWithIndices(indices);
+				primitive.fillListWithIndices(indices, discardDegeneratedTriangles);
 			}
 			primitives.clear();
 			return new TesselatedRing(vertices, indices, r);
 		}
 	}
 	
+	public static TesselatedRing tesselateRing(LinearRing r) {
+		return tesselateRing(r, true);
+	}
+
 	private JoglTesselator() {
 		// only static useage
 	}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/tesselation/Primitive.java

@@ -49,30 +49,34 @@ public class Primitive {
 		this.type = type;
 	}
 
-	public void fillListWithIndices(List<Integer> indices) {
+	public void fillListWithIndices(List<Integer> indices, boolean discardDegeneratedTriangles) {
 		switch (type) {
 		case GL.GL_TRIANGLES:
 			for (int i = 0; i < pIndices.size(); i += 3) {
-				addToListIfAreaNonNull(pIndices.get(i), pIndices.get(i + 1), pIndices.get(i + 2), indices);
+				addToListIfAreaNonNull(pIndices.get(i), pIndices.get(i + 1), pIndices.get(i + 2), indices,
+						discardDegeneratedTriangles);
 			}
 			break;
 		case GL.GL_TRIANGLE_STRIP:
 			for (int i = 0; i < pIndices.size() - 2; i++) {
 				if (i % 2 == 0) {
-					addToListIfAreaNonNull(pIndices.get(i), pIndices.get(i + 1), pIndices.get(i + 2), indices);
+					addToListIfAreaNonNull(pIndices.get(i), pIndices.get(i + 1), pIndices.get(i + 2), indices,
+							discardDegeneratedTriangles);
 				} else {
-					addToListIfAreaNonNull(pIndices.get(i), pIndices.get(i + 2), pIndices.get(i + 1), indices);
+					addToListIfAreaNonNull(pIndices.get(i), pIndices.get(i + 2), pIndices.get(i + 1), indices,
+							discardDegeneratedTriangles);
 				}
 			}
 			break;
 		case GL.GL_TRIANGLE_FAN:
 			Integer first = pIndices.get(0);
 			for (int i = 0; i < pIndices.size() - 2; i++) {
-				addToListIfAreaNonNull(first, pIndices.get(i + 1), pIndices.get(i + 2), indices);
+				addToListIfAreaNonNull(first, pIndices.get(i + 1), pIndices.get(i + 2), indices,
+						discardDegeneratedTriangles);
 			}
 			break;
 		default:
-			throw new IllegalStateException("unknown type found: " + type);
+			throw new IllegalStateException("unknown triangle type found: " + type);
 		}
 	}
 
@@ -80,17 +84,18 @@ public class Primitive {
 		pIndices.add(i);
 	}
 
-	private void addToListIfAreaNonNull(Integer i1, Integer i2, Integer i3, List<Integer> indices) {
+	private void addToListIfAreaNonNull(Integer i1, Integer i2, Integer i3, List<Integer> indices,
+			boolean discardDegeneratedTriangles) {
 		Vector3d v1 = vertices.get(i1);
 		Vector3d v2 = vertices.get(i2);
 		Vector3d v3 = vertices.get(i3);
-		double area = Math.abs(calculateAreaOfTriangle(v1, v2, v3));
-		if (area > AREA_EPSILON) {
+		if (discardDegeneratedTriangles && Math.abs(calculateAreaOfTriangle(v1, v2, v3)) <= AREA_EPSILON) {
+			// switch to discard degenerated triangles is enabled and triangle has nearly no area
+			logger.trace("Tesselator created degenerated triangle, ignoring");
+		} else {
 			indices.add(i1);
 			indices.add(i2);
 			indices.add(i3);
-		} else {
-			logger.trace("Tesselator created degenerated triangle, ignoring");
 		}
 	}
 

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/utils/ArchivePacker.java

+package de.hft.stuttgart.citydoctor2.utils;
+
+import de.hft.stuttgart.citydoctor2.datastructure.CityDoctorModel;
+import de.hft.stuttgart.citydoctor2.zip.CityGmlZipArchive;
+import de.hft.stuttgart.citydoctor2.zip.CityGmlZipEntry;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.FilenameUtils;
+import org.apache.commons.io.IOUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipOutputStream;
+
+public class ArchivePacker {
+
+    private static final Logger logger = LogManager.getLogger(ArchivePacker.class);
+
+    private ArchivePacker(){}
+
+    public static void packArchive(String targetPath, CityGmlZipArchive archive){
+        Path outputPath = Path.of(targetPath);
+        outputPath = outputPath.getParent().resolve(
+                FilenameUtils.removeExtension(outputPath.getFileName().toString()) + ".zip");
+        Path tmpDir = null;
+        try{
+            tmpDir = Files.createTempDirectory("zipTmp");
+            tmpDir.toFile().deleteOnExit();
+            for (CityGmlZipEntry entry : archive.getEntries()) {
+                if (entry.getErrorType() != null || !entry.isLoaded()) {
+                    continue;
+                }
+                CityDoctorModel model = entry.getModel();
+                Path filePath = tmpDir.resolve(entry.getEntrySubPath());
+                Files.createDirectories(filePath.getParent());
+                model.saveAs(filePath.toString(), model.isValidated());
+            }
+            zipFolder(tmpDir.toFile(), outputPath.toFile());
+
+        }catch (Exception e){
+            logger.error(e);
+        } finally {
+            if (tmpDir != null) {
+                try {
+                    FileUtils.deleteDirectory(tmpDir.toFile());
+                } catch (IOException e) {
+                    logger.error(e);
+                }
+            }
+        }
+    }
+
+
+    public static void zipFolder(File folder, File zipFile) throws IOException {
+        zipFolder(folder, new FileOutputStream(zipFile));
+    }
+
+    public static void zipFolder(File folder, OutputStream outputStream) throws IOException {
+        try (ZipOutputStream zipOutputStream = new ZipOutputStream(outputStream)) {
+            processFolder(folder, zipOutputStream, folder.getPath().length() + 1);
+        }
+    }
+
+    private static void processFolder(File folder, ZipOutputStream zipOutputStream, int prefixLength)
+            throws IOException {
+        for (File file : folder.listFiles()) {
+            if (file.isFile()) {
+                ZipEntry zipEntry = new ZipEntry(file.getPath().substring(prefixLength));
+                zipOutputStream.putNextEntry(zipEntry);
+                try (FileInputStream inputStream = new FileInputStream(file)) {
+                    IOUtils.copy(inputStream, zipOutputStream);
+                }
+                zipOutputStream.closeEntry();
+            } else if (file.isDirectory()) {
+                processFolder(file, zipOutputStream, prefixLength);
+            }
+        }
+    }
+
+    public static void packAndDeleteDirectory(String directoryPath) throws IOException {
+        Path sourcePath = Path.of(directoryPath);
+        if (!Files.exists(sourcePath)) {
+            throw new IllegalStateException("Directory " + directoryPath + " does not exist");
+        }
+
+        if (!Files.isDirectory(sourcePath)) {
+            throw new IllegalStateException("Path " + directoryPath + " is not a directory");
+        }
+        Path outputPath = sourcePath.getParent().resolve(sourcePath.getFileName() + ".zip");
+        zipFolder(sourcePath.toFile(), outputPath.toFile());
+
+        FileUtils.deleteDirectory(sourcePath.toFile());
+    }
+
+}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/utils/BoundingBoxCalculator.java

@@ -26,6 +26,10 @@ import de.hft.stuttgart.citydoctor2.datastructure.CityDoctorModel;
 import de.hft.stuttgart.citydoctor2.datastructure.CityObject;
 import de.hft.stuttgart.citydoctor2.datastructure.Geometry;
 import de.hft.stuttgart.citydoctor2.datastructure.Polygon;
+import de.hft.stuttgart.citydoctor2.datastructure.TopLevelTransportFeature;
+import de.hft.stuttgart.citydoctor2.datastructure.TrafficSpaceObject;
+import de.hft.stuttgart.citydoctor2.datastructure.TransportationObject;
+import de.hft.stuttgart.citydoctor2.datastructure.TransportationSpace;
 import de.hft.stuttgart.citydoctor2.datastructure.Vertex;
 import de.hft.stuttgart.citydoctor2.math.Vector3d;
 
@@ -49,7 +53,7 @@ public class BoundingBoxCalculator {
 	 * Only the exterior rings of the polygons is used as inner rings should be
 	 * within the exterior or they are faulty.
 	 *
-	 * @param a list of polygons containing the vertices
+	 * @param polygons a list of polygons containing the vertices
 	 * @return an BoundingBox containing the two end points of the bounding box.
 	 */
 	public static BoundingBox calculateBoundingBox(Collection<? extends Polygon> polygons) {
@@ -98,12 +102,16 @@ public class BoundingBoxCalculator {
 		Vector3d low = new Vector3d(Double.MAX_VALUE, Double.MAX_VALUE, Double.MAX_VALUE);
 		Vector3d high = new Vector3d(Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY, Double.NEGATIVE_INFINITY);
 
+		//TODO: Rework this using visitors
 		findMinMax(low, high, model.getBuildings());
 		findMinMax(low, high, model.getBridges());
 		findMinMax(low, high, model.getLand());
-		findMinMax(low, high, model.getTransportation());
+		findMinMaxTransport(low, high, model.getTransportation());
 		findMinMax(low, high, model.getWater());
 		findMinMax(low, high, model.getVegetation());
+		findMinMax(low, high, model.getTunnels());
+		findMinMax(low, high, model.getCityFurniture());
+		findMinMax(low, high, model.getGenericCityObjects());
 
 		Vector3d[] result = new Vector3d[2];
 		result[0] = low;
@@ -151,6 +159,23 @@ public class BoundingBoxCalculator {
 		}
 	}
 
+	//TODO: Implement this properly with visitor. Quick and dirty fix for the renderer
+	private static void findMinMaxTransport(Vector3d low, Vector3d high, List<? extends TransportationObject> features) {
+		for (TransportationObject to : features) {
+			findMinMax(low, high, to);
+			if (to instanceof TransportationSpace ts) {
+				findMinMaxTransport(low, high, ts.getTrafficSpaces());
+				findMinMaxTransport(low, high, ts.getAuxTrafficSpaces());
+				if (to instanceof TopLevelTransportFeature top) {
+					findMinMaxTransport(low, high, top.getSections());
+					findMinMaxTransport(low, high, top.getIntersections());
+				}
+			} else if (to instanceof TrafficSpaceObject tso) {
+				findMinMaxTransport(low, high, tso.getTrafficAreas());
+			}
+		}
+	}
+
 	private static void findMinMax(Vector3d low, Vector3d high, CityObject co) {
 		for (Geometry geom : co.getGeometries()) {
 			if (geom.getVertices() == null) {

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/utils/PolygonIntersection.java

@@ -25,6 +25,7 @@ import java.util.List;
 import de.hft.stuttgart.citydoctor2.datastructure.ConcretePolygon;
 import de.hft.stuttgart.citydoctor2.datastructure.Polygon;
 import de.hft.stuttgart.citydoctor2.math.Segment3d;
+import de.hft.stuttgart.citydoctor2.math.Triangle3d;
 
 /**
  * Result of a polygon polygon intersection.
@@ -38,7 +39,7 @@ public class PolygonIntersection implements Serializable {
 	private static final long serialVersionUID = -6301963226688351725L;
 
 	public enum IntersectionType {
-		NONE, LINE, POLYGON
+		NONE, LINE, POLYGON, TRIANGLES
 	}
 
 	private final IntersectionType type;
@@ -48,10 +49,30 @@ public class PolygonIntersection implements Serializable {
 	private Polygon p1;
 	private Polygon p2;
 	
+	private Triangle3d t1;
+	private Triangle3d t2;
+
 	public static PolygonIntersection none() {
 		return new PolygonIntersection(IntersectionType.NONE);
 	}
 	
+	
+	public static PolygonIntersection triangles(Triangle3d t1, Triangle3d t2) {
+		PolygonIntersection poly = new PolygonIntersection(IntersectionType.TRIANGLES);
+		poly.p1 = t1.getPartOf().getOriginal();
+		poly.p2 = t2.getPartOf().getOriginal();
+		poly.t1 = t1;
+		poly.t2 = t2;
+		return poly;
+	}
+	
+	public static PolygonIntersection any(Polygon p1, Polygon p2) {
+		PolygonIntersection poly = new PolygonIntersection(IntersectionType.POLYGON);
+		poly.p1 = p1;
+		poly.p2 = p2;
+		return poly;
+	}
+
 	public static PolygonIntersection lines(List<Segment3d> lines, Polygon p1, Polygon p2) {
 		PolygonIntersection poly = new PolygonIntersection(IntersectionType.LINE);
 		poly.lines = lines;
@@ -76,6 +97,14 @@ public class PolygonIntersection implements Serializable {
 		return p2;
 	}
 	
+	public Triangle3d getT1() {
+		return t1;
+	}
+	
+	public Triangle3d getT2() {
+		return t2;
+	}
+
 	private PolygonIntersection(IntersectionType type) {
 		this.type = type;
 	}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/writer/CityGMLWriterUtils.java

@@ -31,7 +31,6 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.citygml4j.core.model.CityGMLVersion;
 import org.citygml4j.core.model.core.AbstractCityObjectProperty;
 import org.citygml4j.core.model.core.AbstractFeatureProperty;
 import org.citygml4j.core.model.core.CityModel;

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipArchive.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+import de.hft.stuttgart.citydoctor2.parser.ParserConfiguration;
+import de.hft.stuttgart.citydoctor2.utils.ArchivePacker;
+import de.hft.stuttgart.citydoctor2.utils.Localization;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.Serial;
+import java.io.Serializable;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+import java.util.zip.ZipInputStream;
+
+/**
+ * This class serves as a representation of a ZIP-archive containing CityGml files. The contained files are represented
+ * by {@link CityGmlZipEntry} objects.
+ */
+public class CityGmlZipArchive implements Serializable {
+
+    private static final Logger logger = LogManager.getLogger(CityGmlZipArchive.class);
+
+    @Serial
+    private static final long serialVersionUID = 2168389511043362615L;
+
+    private List<CityGmlZipEntry> entries;
+    private final Path archivePath;
+    private final String archiveNameRE;
+
+    /**
+     * Registers a ZIP-file as an archive. All contained XML and GML files will be registered as {@link CityGmlZipEntry} objects.
+     *
+     * @param zipFile path of the ZIP-file
+     * @return A {@link CityGmlZipArchive} object representing the archive, or null if read-access for the ZIP-file was denied
+     * @throws MalformedZipFileException if the ZIP-file has encoding errors
+     */
+    public static CityGmlZipArchive register(String zipFile) throws MalformedZipFileException {
+        ArrayList<CityGmlZipEntry> archiveEntries = new ArrayList<>();
+        CityGmlZipArchive cgmlArchive = new CityGmlZipArchive(Path.of(zipFile));
+        try (ZipInputStream zis = new ZipInputStream(new FileInputStream(zipFile))) {
+            ZipEntry ze;
+            while ((ze = zis.getNextEntry()) != null) {
+                if (ze.isDirectory()) {
+                    continue;
+                }
+                if (ze.getName().endsWith(".gml") || ze.getName().endsWith(".xml")) {
+                    // Ignore report files generated by CityDoctor
+                    if (ze.getName().endsWith("_report.xml")) {
+                        continue;
+                    }
+                    archiveEntries.add(CityGmlZipEntry.register(ze, cgmlArchive));
+                }
+            }
+            cgmlArchive.setEntries(archiveEntries);
+            return cgmlArchive;
+        } catch (IOException e) {
+            logger.error(Localization.getText("CityGmlZipArchive.ioError"));
+            logger.debug(e.getMessage(), e);
+            return null;
+        } catch (IllegalArgumentException e) {
+            logger.error(Localization.getText("CityGmlZipArchive.malformedZipFile"));
+            throw new MalformedZipFileException(Localization.getText("CityGmlZipArchive.malformedZipFile"));
+        } catch (Exception e) {
+            logger.error(Localization.getText("CityGmlZipArchive.generalException"));
+            logger.debug(e.getMessage(), e);
+            throw (e);
+        }
+    }
+
+    /**
+     * Attempts to load all contained {@link CityGmlZipEntry} objects into memory.
+     *
+     * @param config Parser configuration for the entries
+     */
+    public void mountArchive(ParserConfiguration config) {
+        try (ZipFile zip = new ZipFile(archivePath.toFile())) {
+            for (CityGmlZipEntry entry : entries) {
+                entry.loadEntry(config);
+            }
+        } catch (IOException e) {
+            logger.error(e);
+        }
+    }
+
+    private CityGmlZipArchive(Path archivePath) {
+        this.archivePath = archivePath;
+        this.archiveNameRE = archivePath.getFileName().toString().replace(".zip", "") + File.separator;
+    }
+
+    private void setEntries(List<CityGmlZipEntry> entries) {
+        this.entries = entries;
+    }
+
+    /**
+     * Saves this archive as a ZIP-file.
+     * @param path target path for the export
+     */
+    public void exportToZipFile(String path) {
+        ArchivePacker.packArchive(path, this);
+    }
+
+    /**
+     * Gets an entry in this archive by its subpath.
+     *
+     * @param subpath subpath to the entry from this archive's root directory
+     * @return the corresponding entry, or null if entry could not be found
+     */
+    public CityGmlZipEntry getEntry(String subpath) {
+        subpath = stripArchivePath(subpath);
+        for (CityGmlZipEntry entry : entries) {
+            String entryName = stripArchivePath(entry.getEntrySubPath());
+            if (entryName.equals(subpath)) {
+                return entry;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Strips the root directory name of this archive from an entry subpath.
+     * @param path the relative path to the entry
+     * @return String of the path without the root directory
+     */
+    private String stripArchivePath(String path) {
+        Path systemPath = Path.of(path);
+        return systemPath.toString().replace(archiveNameRE, "");
+    }
+
+    /**
+     * Gets the path to the ZIP-file associated with this archive.
+     * @return path of the ZIP-file
+     */
+    public Path getArchivePath() {
+        return archivePath;
+    }
+
+    /**
+     * Gets the entry list of this archive.
+     * @return the entry list
+     */
+    public List<CityGmlZipEntry> getEntries() {
+        return entries;
+    }
+
+}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntry.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+import de.hft.stuttgart.citydoctor2.datastructure.CityDoctorModel;
+import de.hft.stuttgart.citydoctor2.parser.CityGmlParseException;
+import de.hft.stuttgart.citydoctor2.parser.CityGmlParser;
+import de.hft.stuttgart.citydoctor2.parser.InvalidGmlFileException;
+import de.hft.stuttgart.citydoctor2.parser.ParserConfiguration;
+import de.hft.stuttgart.citydoctor2.parser.ProgressListener;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+import java.io.IOException;
+import java.io.Serial;
+import java.io.Serializable;
+import java.nio.file.Path;
+import java.util.zip.ZipEntry;
+
+/**
+ * This class serves as a representation of a CityGml file in a ZIP archive.
+ * <p/>
+ * The {@link CityDoctorModel} of the associated file can only be accessed after loading the corresponding entry.
+ */
+public class CityGmlZipEntry implements Serializable {
+
+    private static final Logger logger = LogManager.getLogger(CityGmlZipEntry.class);
+    @Serial
+    private static final long serialVersionUID = -5732913269959043262L;
+
+    private final Path filePath;
+    private final String fileName;
+    private final String displayName;
+    private transient CityDoctorModel model;
+    private CityGmlZipArchive parentArchive;
+    private boolean inMemory;
+    private long fileSize = -1L;
+    private static final long MB = 1024 * 1024L;
+    private ZipEntryErrorType errorType = null;
+
+
+    /**
+     * Attempts to parse the CityGML model associated with this entry and loads it into memory.
+     * <p/>
+     * In the event of a parsing error, the entry will be flagged by assigning the appropriate
+     * {@link ZipEntryErrorType} to the errorType field.
+     *
+     * @param config Parser configuration for this model
+     */
+    public void loadEntry(ParserConfiguration config) {
+        loadEntry(config, null);
+    }
+
+    /**
+     * Attempts to parse the CityGML model associated with this entry and loads it into memory.
+     * <p/>
+     * In the event of a parsing error, the entry will be flagged by assigning the appropriate
+     * {@link ZipEntryErrorType} to the errorType field.
+     *
+     * @param config Parser configuration for this model
+     * @param l      ProgressListener for tracking parsing progress
+     */
+    public void loadEntry(ParserConfiguration config, ProgressListener l) {
+        if (inMemory) {
+            return;
+        }
+        if (errorType != null) {
+            logger.warn("Tried loading erroneous CityGmlZipEntry");
+            return;
+        }
+        try {
+            this.model = CityGmlParser.parseCityGmlZipEntry(this, config, l);
+            this.inMemory = true;
+        } catch (CityGmlParseException | InvalidGmlFileException e) {
+            logger.error(e);
+            this.errorType = ZipEntryErrorType.INVALID_CITY_GML_FILE;
+        } catch (IOException e) {
+            logger.error(e);
+            this.errorType = ZipEntryErrorType.IO_ERROR;
+        }
+    }
+
+    /**
+     * Registers a {@link ZipEntry ZipEntry} in a ZIP-archive as a {@link CityGmlZipEntry}.
+     * <p/>
+     * If the filesize of the associated file exceeds the total available system memory, or read access is denied,
+     * the entry will be flagged by assigning the appropriate {@link ZipEntryErrorType} to the errorType field.
+     *
+     * @param entry         The ZipEntry object
+     * @param parentArchive The parent archive for this entry
+     * @return A corresponding CityGmlZipEntry object
+     */
+    public static CityGmlZipEntry register(ZipEntry entry, CityGmlZipArchive parentArchive) {
+        CityGmlZipEntry cgzEntry = new CityGmlZipEntry(entry, parentArchive, false);
+        try {
+            if (!cgzEntry.entrySizeWithinMemoryLimits()) {
+                cgzEntry.errorType = ZipEntryErrorType.EXCESSIVE_FILESIZE;
+            }
+        } catch (IOException e) {
+            logger.error(e);
+            cgzEntry.errorType = ZipEntryErrorType.IO_ERROR;
+        }
+        return cgzEntry;
+    }
+
+    /**
+     * Checks if the filesize of this entry would exceed the system's available memory.
+     *
+     * @return true if within limits, false otherwise
+     * @throws IOException if read access to the ZIP-archive is denied
+     */
+    private boolean entrySizeWithinMemoryLimits() throws IOException {
+        long memoryLimit = (long) Math.ceil(((double) Runtime.getRuntime().maxMemory() / MB) * 0.9);
+        if (fileSize == -1L) {
+            try (CityGmlZipEntryFile entryFile = new CityGmlZipEntryFile(this)) {
+                long filesize = entryFile.getFileSize();
+                if (filesize != -1) {
+                    this.fileSize = filesize;
+                } else {
+                    return false;
+                }
+            } catch (Exception e) {
+                throw new IOException(e);
+            }
+        }
+        return memoryLimit > (fileSize / MB);
+    }
+
+    private CityGmlZipEntry(ZipEntry entry, CityGmlZipArchive parentArchive, boolean inMemory) {
+        this.fileName = entry.getName();
+        this.filePath = Path.of(entry.getName());
+        this.displayName = filePath.getFileName().toString();
+        if (entry.getSize() != -1) {
+            this.fileSize = entry.getSize();
+        }
+        this.model = null;
+        this.inMemory = inMemory;
+        this.parentArchive = parentArchive;
+    }
+
+    /**
+     * Gets the parent archive of this entry.
+     * @return the archive
+     */
+    public CityGmlZipArchive getArchive() {
+        return parentArchive;
+    }
+
+    /**
+     * Gets the sub-path in the archive of the file associated with this entry.
+     *
+     * @return the relative sub-path from the archive root directory
+     */
+    public String getEntrySubPath() {
+        return fileName;
+    }
+
+    /**
+     * Gets the name of the file associated with this entry.
+     * @return the filename
+     */
+    public String getDisplayName() {
+        return displayName;
+    }
+
+    /**
+     * Gets the {@link ZipEntryErrorType} of this entry.
+     * @return the error type, or null if this entry is not erroneous
+     */
+    public ZipEntryErrorType getErrorType() {
+        return errorType;
+    }
+
+    /**
+     * Gets the {@link CityDoctorModel} of this entry.
+     * @return The model, or null if the entry has not been loaded or is erroneous
+     */
+    public CityDoctorModel getModel() {
+        return model;
+    }
+
+    public void setFileSize(long size) {
+        fileSize = size;
+    }
+
+    /**
+     * Resolves the reference path of a {@link de.hft.stuttgart.citydoctor2.datastructure.LibraryObject LibraryObject}
+     * in the {@link CityDoctorModel} of this entry.
+     * @param libraryObjectPath The reference path to the LibraryObject's CityGml file
+     * @return Relative sub-path within the archive to the CityGml file
+     */
+    public Path resolveLibraryObjectPath(String libraryObjectPath) {
+        return filePath.getParent().resolve(libraryObjectPath);
+    }
+
+    /**
+     * Checks if the {@link CityDoctorModel} of this entry has been loaded into memory.
+     *
+     * @return true if it is loaded, false otherwise
+     */
+    public boolean isLoaded() {
+        return inMemory;
+    }
+
+    /**
+     * Returns the estimated uncompressed filesize of this entry.
+     *
+     * @return filesize in bytes, -1L if filesize is unknown
+     */
+    public long getFileSize() {
+        return fileSize;
+    }
+}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/CityGmlZipEntryFile.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipFile;
+
+/**
+ * This class serves as a resource for read-access to the file that is being represented by
+ * a CityGmlZipEntry object.
+ * <p/>
+ * Does not decompress the file or the parent ZIP-archive.
+ */
+public class CityGmlZipEntryFile implements AutoCloseable {
+
+    private final ZipFile zip;
+    private final ZipEntry zipEntry;
+    private final CityGmlZipEntry cgmlZipEntry;
+    private boolean closed = false;
+
+    /**
+     * Creates a {@link CityGmlZipEntryFile} for a {@link CityGmlZipEntry} object's referenced file.
+     *
+     * @param entry the requested entry
+     * @throws IOException if read access to the ZIP-archive is denied.
+     */
+    public CityGmlZipEntryFile(CityGmlZipEntry entry) throws IOException {
+        CityGmlZipArchive archive = entry.getArchive();
+        zip = new ZipFile(archive.getArchivePath().toFile());
+        zipEntry = zip.getEntry(entry.getEntrySubPath());
+        this.cgmlZipEntry = entry;
+    }
+
+    /**
+     * Gets a new InputStream of this file.
+     * <p/>
+     * Returned streams are independent of each other, but will all be closed when the {@link CityGmlZipEntryFile} object
+     * is closed.
+     * @return an InputStream of this file.
+     * @throws IOException when this method is called after the file has been closed.
+     */
+    public InputStream getInputStream() throws IOException {
+        if (closed){
+            throw new IOException("CityGmlZipEntryFile closed");
+        }
+        return zip.getInputStream(zipEntry);
+    }
+
+    /**
+     * Gets an estimation of this file's filesize.
+     * @return filesize in bytes, -1L if unknown
+     * @throws IOException when this method is called after the file has been closed.
+     */
+    public long getFileSize() throws IOException {
+        if (closed){
+            throw new IOException("CityGmlZipEntryFile closed");
+        }
+        if (cgmlZipEntry.getFileSize() == -1L) {
+            if (zipEntry.getSize() == -1) {
+                long bytes = 0;
+                InputStream is = new BufferedInputStream(this.getInputStream());
+                for (int i = is.read(); i != -1; i = is.read()) {
+                    bytes++;
+                }
+                cgmlZipEntry.setFileSize(bytes);
+            } else {
+                cgmlZipEntry.setFileSize(zipEntry.getSize());
+            }
+        }
+        return cgmlZipEntry.getFileSize();
+    }
+
+    @Override
+    public void close() throws IOException {
+        zip.close();
+        closed = true;
+    }
+}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/MalformedZipFileException.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+import java.util.zip.ZipException;
+
+/**
+ * Signals that a ZIP-file is corrupted and couldn't be parsed.
+ */
+public class MalformedZipFileException extends ZipException {
+
+    public MalformedZipFileException() {
+        super();
+    }
+
+    public MalformedZipFileException(String message) {
+        super(message);
+    }
+}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/ZipEntryErrorType.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+/**
+ * Error types for {@link CityGmlZipEntry} objects.
+ */
+public enum ZipEntryErrorType {
+    INVALID_CITY_GML_FILE, EXCESSIVE_FILESIZE, IO_ERROR
+}

CityDoctorParent/CityDoctorModel/src/main/java/de/hft/stuttgart/citydoctor2/zip/ZipParser.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+public class ZipParser {
+
+    private static final Logger logger = LogManager.getLogger(ZipParser.class);
+
+
+
+}

CityDoctorParent/CityDoctorModel/src/main/resources/CityDoctorLocalization.properties

@@ -18,6 +18,9 @@ CheckDialog.parameterValue=Value
 CheckDialog.parameterUnit=Unit
 CityDoctorController.noDatamodel=Datamodel is null, no checks could be done
 CityDoctorController.noSourceFile=Source file is null, no checks could be done
+CityDoctorController.noZipFile=ZIP archive is null, no checks could be done
+CityDoctorController.exportSuccess=Successfully exported feature
+CityDoctorController.saveZipArchiveReports=Successfully exported validation reports!
 ExceptionDialog.stacktrace=The exception stacktrace was:
 FilterPane.buildings=Buildings
 FilterPane.bridges=Bridges
@@ -32,6 +35,7 @@ MainToolBar.executeChecks=Execute Checks
 MainToolBar.showWorld=Show entire city model
 MainToolBar.resetCamera=Reset view
 MainToolBar.hideRoof=Show/Hide roof BoundarySurfaces
+MainToolBar.zip=Open zip-entry selection window
 MainWindow.missingConfig=Could not find configuration file.
 MainWindow.loadGivenFile=Loading given file, please wait 
 MainWindow.finishedLoading=Finished loading
@@ -43,7 +47,12 @@ MainWindow.finishedPdf=Finished pdf report
 MainWindow.loadFailed=Failed to load given gml file: {}
 MainWindow.all=All
 MainWindow.withErrors=With errors
-MainWindow.export=Export
+MainWindow.export=Export feature
+MainWindow.copyId=Copy GML-ID
+MainWindow.delete=Delete feature
+MainWindow.infoTopLevelExport=Only top-level object can be exported!
+MainWindow.infoTopLevelCopyID=GML-ID can only be copied from top-level object!
+mainWindow.warnCopyIdFailed=Could not copy GML-ID!
 OpenFileDialog.select=Select CityGML file
 MainWindow.languageChange=For the change in language to apply, restart CityDoctor2.
 MainWindow.buildingsTab=Buildings
@@ -67,6 +76,7 @@ MainWindow.verticesTab=Vertices
 MainWindow.attributeTab=Attributes
 MainWindow.logTab=Log
 MainWindow.globalErrorsTab=Global Errors
+MainWindow.focusCityObject=Focus object
 OpenFileDialog.fileLabel=File:
 OpenFileDialog.selectBtn=Select
 OpenFileDialog.loadBtn=Load
@@ -96,6 +106,37 @@ CheckDialog.schematronFileLabel=Schematron File:
 CheckDialog.selectBtn=Select
 CheckDialog.checkBtn=Check
 CheckDialog.cancelBtn=Cancel
+CheckDialog.streamCheckOption=Use low memory mode
+CheckDialog.streamCheckLabel=Citymodels are not loaded and kept in memory. Check results are saved to the QualityADE in copies of the input files.
+CheckDialog.outputPathLabel=Output directory (Required):
+CheckDialog.outputPathBtn=Select
+CheckDialog.pdfReportsOption=Create PDF reports
+CheckDialog.xmlReportsOption=Create XML reports
+CheckDialog.noPathError=Output path is missing!
+ZipEntryManager.title=Zip-entry manager
+ZipEntryManager.entryListTitle=Zip-entries
+ZipEntryManager.metadata=Metadata
+ZipEntryManager.subpathLbl=Subpath:
+ZipEntryManager.erroneousLbl=Erroneous:
+ZipEntryManager.excessiveFileSize=Filesize exceeds memory
+ZipEntryManager.invalidCityGml=Invalid CityGML file
+ZipEntryManager.ioError=Unable to access file
+ZipEntryManager.filesizeLbl=Filesize:
+ZipEntryManager.validatedLbl=Validated:
+ZipEntryManager.objectCountLbl=Object count:
+ZipEntryManager.loadBtn=Load CityGML model
+ZipEntryManager.decompressBtn=Unpack file
+ZipEntryManager.decompressAllBtn=Unpack all files
+ZipEntryManager.checkAllBtn=Check all files
+ZipEntryManager.showReportBtn=Show error statistic
+ZipEntryManager.saveBtn=Export validation results
+ZipEntryManager.cancelBtn=Cancel
+ZipEntryManager.unknownValue=N/A
+ZipEntryManager.yes=Yes
+ZipEntryManager.no=No
+CityGmlZipArchive.ioError=Accessing the ZIP archive failed
+CityGmlZipArchive.malformedZipFile=Parsing of ZIP archive aborted, ZIP file is malformed!
+CityGmlZipArchive.generalException=Encountered an unexpected error while reading the ZIP archive
 WriteReportDialog.writeBtn=Save
 WriteReportDialog.cancelBtn=Cancel
 WriteReportDialog.errorStatisticsLabel=Error Statistics
@@ -114,9 +155,19 @@ CityGmlParser.notValidGmlFile=This is not a valid GML-File\n
 CityGmlParser.errorReadingGmlFile=Error while reading city gml file\n{}
 CityGmlParser.errorWritingGmlFile=Error while writing city gml file\n{}
 CityGmlParser.noConversionNeeded=Coordinate system is in meters, no conversion done
-CityGmlParser.noEPSG=Could not read EPSG code, assuming metric system
+CityGmlParser.failedEPSGParse=Could not read EPSG code, fallback to metric system
+CityGmlParser.missingEPSGCode=No EPSG code found, assuming metric system
 OpenFileDialog.loadFailed=Failed to load CityGML File
 MainWindow.memoryLabel=Memory:
 CheckDialog.checksReenabledAlert=Some checks have been reenabled so that other wanted checks can be executed\nSee the log for more information.
 MainWindow.availableLabel=Available:
 OpenFileDialog.lowMemoryLabel=Low Memory Consumption Mode
+ErrorItemVisitor.intersection=Intersection
+ErrorItemVisitor.component=Component
+ErrorItemVisitor.nameOfAttribute=Name of attribute
+ErrorItemVisitor.childId=Child id
+ErrorItemVisitor.distance=Distance
+ErrorItemVisitor.pointTouchesEdge=Point touches edge
+ErrorItemVisitor.degeneratedRing=Degenerated ring
+ErrorItemVisitor.deviation=Deviation
+ErrorItemVisitor.triangles=Triangles
\ No newline at end of file

CityDoctorParent/CityDoctorModel/src/main/resources/CityDoctorLocalization_de.properties

@@ -16,6 +16,9 @@ CheckDialog.parameterValue=Wert
 CheckDialog.parameterUnit=Einheit
 CityDoctorController.noDatamodel=Datenmodell ist null, keine Pr\u00fcfungen konnten ausgef\u00fchrt werden
 CityDoctorController.noSourceFile=Quelldatei ist null, keine Pr\u00fcfungen konnten ausgef\u00fchrt werden
+CityDoctorController.noZipFile=ZIP-Archiv ist null, keine Pr\u00fcfungen konnten ausgef\u00fchrt werden
+CityDoctorController.exportSuccess=Feature export erfolgreich abgeschlossen
+CityDoctorController.saveZipArchiveReports=Validierungsberichte erfolgreich exportiert!
 ExceptionDialog.stacktrace=Der Stacktrace des Fehlers war:
 FilterPane.buildings=Geb\u00e4ude
 FilterPane.bridges=Br\u00fccken
@@ -30,6 +33,7 @@ MainToolBar.executeChecks=F\u00fchre Pr\u00fcfungen aus
 MainToolBar.showWorld=Gesamtes Stadtmodell anzeigen
 MainToolBar.resetCamera=Ansicht zur\u00fccksetzen
 MainToolBar.hideRoof=Zeige/Verstecke Dach BoundarySurfaces
+MainToolBar.zip=Zip-eintrag Auswahlfenster \u00f6ffnen
 MainWindow.missingConfig=Konnte Konfigurationsdatei nicht finden. 
 MainWindow.loadGivenFile=Lade vorhandene Datei, bitte warten
 MainWindow.finishedLoading=Fertig geladen
@@ -41,7 +45,12 @@ MainWindow.finishedPdf=Pdf Report abgeschlossen
 MainWindow.loadFailed=Konnte GML-Datei nicht laden: {}
 MainWindow.all=Alle
 MainWindow.withErrors=Mit Fehlern
-MainWindow.export=Exportieren
+MainWindow.export=Feature Exportieren
+MainWindow.copyId=GML-ID kopieren
+MainWindow.delete=Feature L\u00f6schen
+MainWindow.infoTopLevelExport=Export ist nur f\u00fcr Featureobjekt basis m\u00f6glich!
+MainWindow.infoTopLevelCopyID=GML-ID kann nur von Featureobjekt basis kopiert werden!
+mainWindow.warnCopyIdFailed=Kopieren der ID fehlgeschlagen!
 OpenFileDialog.select=W\u00e4hle CityGML Datei aus
 MainWindow.languageChange=Um die Spracheinstellung zu \u00fcbernehmen muss CityDoctor2 neugestartet werden.
 MainWindow.buildingsTab=Geb\u00e4ude
@@ -65,6 +74,7 @@ MainWindow.verticesTab=Punkte
 MainWindow.attributeTab=Attribute
 MainWindow.logTab=Log
 MainWindow.globalErrorsTab=Globale Fehler
+MainWindow.focusCityObject=Objekt fokussieren
 OpenFileDialog.fileLabel=Datei:
 OpenFileDialog.selectBtn=Ausw\u00e4hlen
 OpenFileDialog.loadBtn=Laden
@@ -94,6 +104,37 @@ CheckDialog.schematronFileLabel=Schematron Datei
 CheckDialog.selectBtn=Ausw\u00e4hlen
 CheckDialog.checkBtn=Pr\u00fcfen
 CheckDialog.cancelBtn=Abbrechen
+CheckDialog.streamCheckOption=Niedrigen Arbeitsspeicherverbrauchsmodus aktivieren
+CheckDialog.streamCheckLabel=Stadtmodelle werden nicht in den Arbeitsspeicher geladen. Ergebnisse werden in der QualityADE in Kopien der Eingangsdateien gespeichert.
+CheckDialog.outputPathLabel=Ausgabeordner (Pflichtfeld):
+CheckDialog.outputPathBtn=Ausw\u00e4hlen
+CheckDialog.pdfReportsOption=PDF Berichte erstellen
+CheckDialog.xmlReportsOption=XML Berichte erstellen
+CheckDialog.noPathError=Ausgabepfad wurde nicht gesetzt!
+ZipEntryManager.title=Zipeintrag Manager
+ZipEntryManager.entryListTitle=Zipeintr\u00e4ge
+ZipEntryManager.metadata=Metadaten
+ZipEntryManager.subpathLbl=Unterpfad:
+ZipEntryManager.erroneousLbl=Fehlerhaft:
+ZipEntryManager.excessiveFileSize=Datei zu gro\u00DF
+ZipEntryManager.invalidCityGml=Ung\u00fcltige CityGML Datei
+ZipEntryManager.ioError=Dateizugriff fehlgeschlagen
+ZipEntryManager.filesizeLbl=Dateigr\u00f6\u00DFe:
+ZipEntryManager.validatedLbl=Validiert:
+ZipEntryManager.objectCountLbl=Objektanzahl:
+ZipEntryManager.loadBtn=CityGML Modell laden
+ZipEntryManager.decompressBtn=Datei entpacken
+ZipEntryManager.decompressAllBtn=Alle Dateien entpacken
+ZipEntryManager.checkAllBtn=Alle Dateien pr\u00fcfen
+ZipEntryManager.showReportBtn=Fehlerstatistik anzeigen
+ZipEntryManager.saveBtn=Validierungsergebnisse exportieren
+ZipEntryManager.cancelBtn=Abbruch
+ZipEntryManager.unknownValue=Unbekannt
+ZipEntryManager.yes=Ja
+ZipEntryManager.no=Nein
+CityGmlZipArchive.ioError=Zugriff auf ZIP-Datei fehlgeschlagen
+CityGmlZipArchive.malformedZipFile=Einlesen des ZIP-Archivs abgebrochen, ZIP-Datei ist fehlerhaft!
+CityGmlZipArchive.generalException=Unerwarteter Fehler beim Einlesen des ZIP-Archivs
 WriteReportDialog.writeBtn=Speichern
 WriteReportDialog.cancelBtn=Abbrechen
 WriteReportDialog.errorStatisticsLabel=Fehler Statistik
@@ -104,7 +145,7 @@ WriteReportDialog.xAxisLabel=Fehler
 WriteReportDialog.yAxisLabel=Anzahl
 Unit.Radian=Radiant
 Unit.Degree=Grad
-FeatureMapper.polygonUnreferenced=Polygon {} ist referenziert wurde aber nicht gefunden
+FeatureMapper.polygonUnreferenced=Polygon {} ist referenziert, konnte aber nicht gefunden werden
 GeometryMapper.emptyPolygon=Polygon ohne externen Ring gefunden, ignoriere
 CityGmlParser.parsedObjects=Modell mit {} Objekten gelesen
 CityGmlParser.chunkReadFailed=Konnte Datei nicht in St\u00fccken lesen, versuche komplett zu lesen
@@ -112,9 +153,19 @@ CityGmlParser.notValidGmlFile=Dies ist keine korrekte CityGML Datei\n
 CityGmlParser.errorReadingGmlFile=Fehler beim lesen der CityGML Datei\n{}
 CityGmlParser.errorWritingGmlFile=Fehler beim schreiben der CityGML Datei\n{}
 CityGmlParser.noConversionNeeded=Koordinatensystem in Metern, keine Konvertierung notwendig
-CityGmlParser.noEPSG=Konnte EPSG Code nicht lesen, nehme metrisches System an
+CityGmlParser.failedEPSGParse=Lesen des EPSG Codes fehlgeschlagen, greife auf metrisches System zur\u00fcck
+CityGmlParser.missingEPSGCode=Kein EPSG Code gefunden, nehme metrisches System an
 OpenFileDialog.loadFailed=Konnte CityGML Datei nicht laden
 MainWindow.memoryLabel=Speicher:
 CheckDialog.checksReenabledAlert=Manche Pr\u00fcfungen wurden reaktiviert damit andere gewollte Pr\u00fcfungen durchgef\u00fchrt werden k\u00f6nnen\nMehr Details sind im Log geschrieben
 MainWindow.availableLabel=Verf\u00fcgbar:
 OpenFileDialog.lowMemoryLabel=Reduzierter Speicherverbrauchsmodus
+ErrorItemVisitor.intersection=Verschneidung
+ErrorItemVisitor.component=Komponente
+ErrorItemVisitor.nameOfAttribute=Name des Attributs
+ErrorItemVisitor.childId=Kind ID
+ErrorItemVisitor.distance=Distanz
+ErrorItemVisitor.pointTouchesEdge=Punkt ber\u00fchrt Kante
+ErrorItemVisitor.degeneratedRing=Degenerierter Ring
+ErrorItemVisitor.deviation=Abweichung
+ErrorItemVisitor.triangles=Dreiecke
\ No newline at end of file

CityDoctorParent/CityDoctorModel/src/test/java/de/hft/stuttgart/citydoctor2/datastructure/AbstractBuildingTest.java

@@ -348,6 +348,11 @@ public class AbstractBuildingTest {
 				return null;
 			}
 
+			@Override
+			public CityObject getTopLevelCityObject(){
+				return null;
+			}
+
 		};
 		return ab;
 	}

CityDoctorParent/CityDoctorModel/src/test/java/de/hft/stuttgart/citydoctor2/datastructure/BridgeObjectTest.java

@@ -47,7 +47,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testAccept() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		bo.addBoundarySurface(new BoundarySurface(null));
 		AtomicInteger boCounter = new AtomicInteger(0);
 		AtomicInteger bsCounter = new AtomicInteger(0);
@@ -75,7 +75,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testPrepareForChecking() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		bo.prepareForChecking();
@@ -84,7 +84,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testClearMetaInformation() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		bo.clearMetaInformation();
@@ -93,7 +93,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testContainsError() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		assertFalse(bo.containsError(CheckId.C_GE_P_HOLE_OUTSIDE));
 		bo.addCheckResult(new CheckResult(CheckId.C_GE_P_HOLE_OUTSIDE, ResultStatus.ERROR, mock(CheckError.class)));
 		assertTrue(bo.containsError(CheckId.C_GE_P_HOLE_OUTSIDE));
@@ -101,7 +101,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testContainsError2() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		assertFalse(bo.containsError(CheckId.C_GE_P_HOLE_OUTSIDE));
@@ -111,7 +111,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testClearAllContainedCheckResults() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		bo.clearAllContainedCheckResults();
@@ -120,7 +120,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testContainsAnyError() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		bo.containsAnyError();
@@ -129,14 +129,14 @@ public class BridgeObjectTest {
 		when(bsMock.containsAnyError()).thenReturn(true);
 		assertTrue(bo.containsAnyError());
 		
-		BridgeObject bo2 = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo2 = new BridgeObject(mock(AbstractBridge.class));
 		bo2.addCheckResult(new CheckResult(CheckId.C_GE_P_HOLE_OUTSIDE, ResultStatus.ERROR, mock(CheckError.class)));
 		assertTrue(bo2.containsAnyError());
 	}
 
 	@Test
 	public void testCollectContainedErrors() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		ArrayList<CheckError> errors = new ArrayList<>();
@@ -146,7 +146,7 @@ public class BridgeObjectTest {
 
 	@Test
 	public void testReCreateGeometries() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		GeometryFactory factoryMock = mock(GeometryFactory.class);
@@ -157,7 +157,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesMultiSurfaceLod1() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.MULTI_SURFACE, Lod.LOD1);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -172,7 +172,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesMultiSurfaceLod2() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.MULTI_SURFACE, Lod.LOD2);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -186,7 +186,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesMultiSurfaceLod3() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.MULTI_SURFACE, Lod.LOD3);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -200,7 +200,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesMultiSurfaceLod4() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.MULTI_SURFACE, Lod.LOD4);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -214,7 +214,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesSolidLod1() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.SOLID, Lod.LOD1);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -228,7 +228,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesSolidLod2() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.SOLID, Lod.LOD2);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -242,7 +242,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesSolidLod3() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.SOLID, Lod.LOD3);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -256,7 +256,7 @@ public class BridgeObjectTest {
 	
 	@Test
 	public void testReCreateGeometriesSolidLod4() {
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, mock(AbstractBridge.class));
+		BridgeObject bo = new BridgeObject(mock(AbstractBridge.class));
 		Geometry geom = GeometryTestUtils.createDummyGeometry(GeometryType.SOLID, Lod.LOD4);
 		AbstractBridge ab = new Bridge();
 		bo.setGmlObject(ab);
@@ -273,7 +273,7 @@ public class BridgeObjectTest {
 		AbstractBridge abMock = mock(AbstractBridge.class);
 		DeprecatedPropertiesOfAbstractBridge propsMock = mock(DeprecatedPropertiesOfAbstractBridge.class);
 		when(abMock.getDeprecatedProperties()).thenReturn(propsMock);
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, abMock);
+		BridgeObject bo = new BridgeObject(abMock);
 		BoundarySurface bsMock = mock(BoundarySurface.class);
 		bo.addBoundarySurface(bsMock);
 		
@@ -293,14 +293,14 @@ public class BridgeObjectTest {
 	@Test
 	public void testGetFeatureType() {
 		AbstractBridge abMock = mock(AbstractBridge.class);
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, abMock);
+		BridgeObject bo = new BridgeObject(abMock);
 		assertEquals(FeatureType.BRIDGE, bo.getFeatureType());
 	}
 
 	@Test
 	public void testGetType() {
 		AbstractBridge abMock = mock(AbstractBridge.class);
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, abMock);
+		BridgeObject bo = new BridgeObject( abMock);
 		assertEquals(BridgeType.BRIDGE, bo.getType());
 		bo.setType(BridgeType.BRIDGE_PART);
 		assertEquals(BridgeType.BRIDGE_PART, bo.getType());
@@ -309,7 +309,7 @@ public class BridgeObjectTest {
 	@Test
 	public void testGetGmlObject() {
 		AbstractBridge abMock = mock(AbstractBridge.class);
-		BridgeObject bo = new BridgeObject(BridgeType.BRIDGE, abMock);
+		BridgeObject bo = new BridgeObject(abMock);
 		assertEquals(abMock, bo.getGmlObject());
 		AbstractBridge abMock2 = mock(AbstractBridge.class);
 		bo.setGmlObject(abMock2);

CityDoctorParent/CityDoctorModel/src/test/java/de/hft/stuttgart/citydoctor2/zip/ZipTest.java

+package de.hft.stuttgart.citydoctor2.zip;
+
+import de.hft.stuttgart.citydoctor2.datastructure.CityDoctorModel;
+import de.hft.stuttgart.citydoctor2.parser.ParserConfiguration;
+import org.apache.commons.io.FileUtils;
+import org.junit.Test;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+
+public class ZipTest {
+
+    ParserConfiguration config = new ParserConfiguration(8, false);
+
+
+    @Test
+    public void testUnzipping() throws MalformedZipFileException {
+        CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/mock_archive.zip");
+        assertNotNull(cgmlArch);
+        cgmlArch.mountArchive(config);
+
+        checkMockArchive(cgmlArch);
+    }
+
+    private void checkMockArchive(CityGmlZipArchive cgmlArch) {
+        assertEquals(5, cgmlArch.getEntries().size());
+        for (CityGmlZipEntry entry : cgmlArch.getEntries()) {
+            assertNotNull(entry);
+            assertTrue(entry.getEntrySubPath().matches("^mock[1-5].gml$"));
+            assertNull(entry.getErrorType());
+            assertNotNull(entry.getModel());
+            assertEquals(1, entry.getModel().getNumberOfFeatures());
+        }
+    }
+
+    @Test
+    public void testZipping() throws IOException {
+        CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/mock_archive.zip");
+        assertNotNull(cgmlArch);
+        cgmlArch.mountArchive(config);
+
+        Path tmpDir = null;
+        try {
+            tmpDir = Files.createTempDirectory("testTmp");
+            tmpDir.toFile().deleteOnExit();
+            String expPath = tmpDir + "/export.zip";
+
+            cgmlArch.exportToZipFile(expPath);
+            CityGmlZipArchive cgmlExport = CityGmlZipArchive.register(expPath);
+            assertNotNull(cgmlExport);
+            cgmlExport.mountArchive(config);
+
+            checkMockArchive(cgmlExport);
+        } finally {
+            if (tmpDir != null) {
+                FileUtils.deleteDirectory(tmpDir.toFile());
+            }
+        }
+    }
+
+    @Test
+    public void testEpsgParsing() throws MalformedZipFileException {
+        CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/epsg.zip");
+        assertNotNull(cgmlArch);
+        cgmlArch.mountArchive(config);
+
+        CityGmlZipEntry entry = cgmlArch.getEntry("epsg1.gml");
+        assertNotNull(entry);
+        String srsName = entry.getModel().getCityModel().getBoundedBy().getEnvelope().getSrsName().split(":")[6];
+        assertEquals("25832", srsName);
+
+        entry = cgmlArch.getEntry("epsg2.gml");
+        assertNotNull(entry);
+        srsName = entry.getModel().getCityModel().getBoundedBy().getEnvelope().getSrsName().split(":")[6];
+        assertEquals("7415", srsName);
+    }
+
+    @Test
+    public void testXMLValidation() throws MalformedZipFileException {
+        ParserConfiguration valConfig = new ParserConfiguration(8, true);
+        CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/validate.zip");
+        assertNotNull(cgmlArch);
+        cgmlArch.mountArchive(valConfig);
+
+        assertNull(cgmlArch.getEntry("valCorrect.gml").getErrorType());
+        assertEquals(ZipEntryErrorType.INVALID_CITY_GML_FILE, cgmlArch.getEntry("valFaulty.gml").getErrorType());
+    }
+
+
+    @Test
+    public void testImplicitParsing() throws MalformedZipFileException {
+        CityGmlZipArchive cgmlArch = CityGmlZipArchive.register("src/test/resources/zip/implicit.zip");
+        assertNotNull(cgmlArch);
+        cgmlArch.mountArchive(config);
+
+        CityDoctorModel mainModel = cgmlArch.getEntry("Main_model.gml").getModel();
+        assertEquals(18, mainModel.getGenericCityObjects().size());
+    }
+
+}

CityDoctorParent/CityDoctorModel/src/test/resources/zip/epsg/epsg1.gml

+<?xml version="1.0" encoding="utf-8"?>
+<core:CityModel xmlns:core="http://www.opengis.net/citygml/2.0" xmlns:gen="http://www.opengis.net/citygml/generics/2.0" xmlns:bldg="http://www.opengis.net/citygml/building/2.0" xmlns:app="http://www.opengis.net/citygml/appearance/2.0" xmlns:dem="http://www.opengis.net/citygml/relief/2.0" xmlns:gml="http://www.opengis.net/gml" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/citygml/building/2.0 http://schemas.opengis.net/citygml/building/2.0/building.xsd http://www.opengis.net/citygml/appearance/2.0 http://schemas.opengis.net/citygml/appearance/2.0/appearance.xsd http://www.opengis.net/citygml/relief/2.0 http://schemas.opengis.net/citygml/relief/2.0/relief.xsd http://www.opengis.net/citygml/2.0 http://schemas.opengis.net/citygml/2.0/cityGMLBase.xsd http://www.opengis.net/citygml/generics/2.0 http://schemas.opengis.net/citygml/generics/2.0/generics.xsd">
+<gml:boundedBy>
+	<gml:Envelope srsDimension="3" srsName="urn:ogc:def:crs:EPSG::25832">
+		<gml:lowerCorner>357978.09 5654873.32 0.00</gml:lowerCorner>
+		<gml:upperCorner>359213.91 5656013.49 0.00</gml:upperCorner>
+	</gml:Envelope>
+</gml:boundedBy>
+</core:CityModel>
\ No newline at end of file