ingo@1129: package de.intevation.flys.utils; ingo@1129: ingo@1129: import java.io.File; ingo@1781: import java.io.FilenameFilter; ingo@1129: import java.io.FileNotFoundException; ingo@1129: import java.io.FileWriter; ingo@1129: import java.io.IOException; ingo@1129: import java.io.Writer; ingo@1129: ingo@1129: import java.util.ArrayList; ingo@1129: import java.util.Date; ingo@1129: import java.util.List; ingo@1129: ingo@1129: import org.apache.log4j.Logger; ingo@1129: ingo@1129: import org.apache.velocity.Template; ingo@1129: import org.apache.velocity.VelocityContext; ingo@1129: import org.apache.velocity.app.VelocityEngine; ingo@1129: ingo@1710: import de.intevation.artifacts.common.utils.Config; ingo@1710: ingo@1775: import de.intevation.flys.artifacts.FLYSArtifact; ingo@1129: import de.intevation.flys.artifacts.model.LayerInfo; ingo@1775: import de.intevation.flys.artifacts.model.WMSLayerFacet; ingo@1792: import de.intevation.flys.artifacts.model.WMSDBLayerFacet; ingo@1129: ingo@1129: /** ingo@1129: * This class iterates over a bunch of directories, searches for meta ingo@1129: * information coresponding to shapefiles and creates a mapfile which is used by ingo@1129: * a MapServer. ingo@1129: * ingo@1129: * @author Ingo Weinzierl ingo@1129: */ ingo@1129: public class MapfileGenerator ingo@1129: extends Thread ingo@1129: { ingo@1134: public static final String WSPLGEN_RESULT_SHAPE = "wsplgen.shp"; ingo@1134: public static final String WSPLGEN_LINES_SHAPE = "barrier_lines.shp"; ingo@1134: public static final String WSPLGEN_POLYGONS_SHAPE = "barrier_polygons.shp"; ingo@1134: ingo@1775: public static final String SHP_LAYER_TEMPLATE = "shapefile_layer.vm"; ingo@1792: public static final String DB_LAYER_TEMPLATE = "db_layer.vm"; ingo@1775: ingo@1134: public static final String MS_WSPLGEN_POSTFIX = "-wsplgen"; ingo@1134: public static final String MS_BARRIERS_POSTFIX = "-barriers"; ingo@1134: public static final String MS_LINE_POSTFIX = "-lines"; ingo@1134: public static final String MS_POLYGONS_POSTFIX = "-polygons"; ingo@1775: public static final String MS_LAYER_PREFIX = "ms_layer-"; ingo@1129: ingo@1129: protected static final long SLEEPTIME = 10 * 1000L; // 10 seconds ingo@1129: ingo@1129: private static Logger logger = Logger.getLogger(MapfileGenerator.class); ingo@1129: ingo@1129: private static MapfileGenerator instance; ingo@1129: ingo@1129: private File mapfile; ingo@1129: private File shapefileDirectory; ingo@1129: ingo@1129: private String mapServerUrl; ingo@1129: private String templatePath; ingo@1129: private String velocityLogfile; ingo@1129: ingo@1129: private VelocityEngine velocityEngine; ingo@1129: private boolean lock[]; ingo@1129: ingo@1129: ingo@1129: ingo@1129: private MapfileGenerator() { ingo@1129: lock = new boolean[1]; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * A main method which can be used to create a mapfile without a running ingo@1129: * artifact server.
ingo@1129: * NOTE: This method is not implemented yet! ingo@1129: * ingo@1129: * @param args Arguments. ingo@1129: */ ingo@1129: public static void main(String[] args) { ingo@1129: throw new Error("MapfileGenerator.main() is CURRENTLY NOT IMPLEMENTED!"); ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Returns the instance of this generator. ingo@1129: * ingo@1129: * @return the instance. ingo@1129: */ ingo@1129: public static synchronized MapfileGenerator getInstance() { ingo@1129: if (instance == null) { ingo@1129: instance = new MapfileGenerator(); ingo@1129: instance.setDaemon(true); ingo@1129: instance.start(); ingo@1129: } ingo@1129: ingo@1129: return instance; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Triggers the mapfile generation process. ingo@1129: */ ingo@1129: public void update() { ingo@1129: synchronized (lock) { ingo@1129: logger.debug("update"); ingo@1129: lock[0] = true; ingo@1129: lock.notify(); ingo@1129: } ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Thread to generate a mapfile. ingo@1129: */ ingo@1129: @Override ingo@1129: public void run() { ingo@1129: logger.debug("Start MapfileGenerator thread..."); ingo@1129: try { ingo@1129: for (;;) { ingo@1129: synchronized (lock) { ingo@1129: while (!lock[0]) { ingo@1129: lock.wait(SLEEPTIME); ingo@1129: } ingo@1129: lock[0] = false; ingo@1129: } ingo@1129: ingo@1129: logger.debug("Start sync process now..."); ingo@1129: generate(); ingo@1129: } ingo@1129: } ingo@1129: catch (InterruptedException ie) { ingo@1129: logger.debug("MapfileGenerator thread got an interrupt."); ingo@1129: } ingo@1129: catch (FileNotFoundException fnfe) { ingo@1129: logger.debug("Error while mapfile creation: " + fnfe.getMessage()); ingo@1129: } ingo@1775: catch (IOException ioe) { ingo@1775: logger.error(ioe, ioe); ingo@1775: } ingo@1129: finally { ingo@1129: logger.debug("THREAD END"); ingo@1129: } ingo@1129: } ingo@1129: ingo@1129: /** ingo@1129: * Method to check the existance of a template file. ingo@1129: * ingo@1129: * @param templateID The name of a template. ingo@1129: * @return true, of the template exists - otherwise false. ingo@1129: */ ingo@1129: public boolean templateExists(String templateID){ ingo@1129: Template template = getTemplateByName(templateID); ingo@1129: return template != null; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Method which starts searching for meta information file and mapfile ingo@1129: * generation. ingo@1129: */ ingo@1129: protected void generate() ingo@1775: throws FileNotFoundException, IOException ingo@1129: { ingo@1129: File[] userDirs = getUserDirs(); ingo@1781: ingo@1781: List layers = parseLayers(userDirs); ingo@1129: ingo@1129: logger.info("Found " + layers.size() + " layers for user mapfile."); ingo@1129: ingo@1129: writeMapfile(layers); ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Returns the VelocityEngine used for the template mechanism. ingo@1129: * ingo@1129: * @return the velocity engine. ingo@1129: */ ingo@1129: protected VelocityEngine getVelocityEngine() { ingo@1129: if (velocityEngine == null) { ingo@1129: velocityEngine = new VelocityEngine(); ingo@1129: try { ingo@1129: setupVelocity(velocityEngine); ingo@1129: } ingo@1129: catch (Exception e) { ingo@1129: logger.error(e, e); ingo@1129: return null; ingo@1129: } ingo@1129: } ingo@1129: return velocityEngine; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Initialize velocity. ingo@1129: * ingo@1129: * @param engine Velocity engine. ingo@1129: * @throws Exception if an error occured while initializing velocity. ingo@1129: */ ingo@1129: protected void setupVelocity(VelocityEngine engine) ingo@1129: throws Exception ingo@1129: { ingo@1129: engine.setProperty( ingo@1129: "input.encoding", ingo@1129: "UTF-8"); ingo@1129: ingo@1129: engine.setProperty( ingo@1129: VelocityEngine.RUNTIME_LOG, ingo@1129: FLYSUtils.getXPathString(FLYSUtils.XPATH_VELOCITY_LOGFILE)); ingo@1129: ingo@1129: engine.setProperty( ingo@1129: "resource.loader", ingo@1129: "file"); ingo@1129: ingo@1129: engine.setProperty( ingo@1129: "file.resource.loader.path", ingo@1129: FLYSUtils.getXPathString(FLYSUtils.XPATH_MAPSERVER_TEMPLATE_PATH)); ingo@1129: ingo@1129: engine.init(); ingo@1129: } ingo@1129: ingo@1129: ingo@1792: protected VelocityContext getVelocityContext() { ingo@1792: VelocityContext context = new VelocityContext(); ingo@1792: ingo@1792: try { ingo@1792: context.put("MAPSERVERURL", ingo@1792: FLYSUtils.getXPathString(FLYSUtils.XPATH_MAPSERVER_URL)); ingo@1792: context.put("SHAPEFILEPATH", ingo@1792: getShapefileBaseDir().getCanonicalPath()); ingo@1792: context.put("CONFIGDIR", ingo@1792: Config.getConfigDirectory().getCanonicalPath()); ingo@1792: } ingo@1792: catch (FileNotFoundException fnfe) { ingo@1792: // this is bad ingo@1792: } ingo@1792: catch (IOException ioe) { ingo@1792: // this is also bad ingo@1792: } ingo@1792: ingo@1792: return context; ingo@1792: } ingo@1792: ingo@1792: ingo@1129: /** ingo@1129: * Returns a template specified by model. ingo@1129: * ingo@1129: * @param model The name of the template. ingo@1129: * @return a template. ingo@1129: */ ingo@1129: protected Template getTemplateByName(String model) { ingo@1129: if (model.indexOf(".vm") < 0) { ingo@1129: model = model.concat(".vm"); ingo@1129: } ingo@1129: ingo@1129: try { ingo@1129: VelocityEngine engine = getVelocityEngine(); ingo@1129: if (engine == null) { ingo@1129: logger.error("Error while fetching VelocityEngine."); ingo@1129: return null; ingo@1129: } ingo@1129: ingo@1129: return engine.getTemplate(model); ingo@1129: } ingo@1129: catch (Exception e) { ingo@1129: logger.warn(e, e); ingo@1129: } ingo@1129: ingo@1129: return null; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Returns the mapfile template. ingo@1129: * ingo@1129: * @return the mapfile template. ingo@1129: * @throws Exception if an error occured while reading the configuration. ingo@1129: */ ingo@1129: protected Template getMapfileTemplate() ingo@1129: throws Exception ingo@1129: { ingo@1129: String mapfileName = FLYSUtils.getXPathString( ingo@1129: FLYSUtils.XPATH_MAPFILE_TEMPLATE); ingo@1129: ingo@1129: return getTemplateByName(mapfileName); ingo@1129: } ingo@1129: ingo@1129: ingo@1129: /** ingo@1129: * Returns the base directory storing the shapefiles. ingo@1129: * ingo@1129: * @return the shapefile base directory. ingo@1129: * ingo@1129: * @throws FileNotFoundException if no shapefile path is found or ingo@1129: * configured. ingo@1129: */ ingo@1792: public File getShapefileBaseDir() ingo@1775: throws FileNotFoundException, IOException ingo@1129: { ingo@1129: if (shapefileDirectory == null) { ingo@1129: String path = FLYSUtils.getXPathString( ingo@1129: FLYSUtils.XPATH_SHAPEFILE_DIR); ingo@1129: ingo@1129: if (path != null) { ingo@1129: shapefileDirectory = new File(path); ingo@1129: } ingo@1129: ingo@1775: if (shapefileDirectory == null) { ingo@1129: throw new FileNotFoundException("No shapefile directory given"); ingo@1129: } ingo@1775: ingo@1775: if (!shapefileDirectory.exists()) { ingo@1775: shapefileDirectory.createNewFile(); ingo@1775: } ingo@1129: } ingo@1129: ingo@1129: return shapefileDirectory; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: protected File[] getUserDirs() ingo@1775: throws FileNotFoundException, IOException ingo@1129: { ingo@1129: File baseDir = getShapefileBaseDir(); ingo@1129: File[] artifactDirs = baseDir.listFiles(); ingo@1129: ingo@1129: // TODO ONLY RETURN DIRECTORIES OF THE SPECIFIED USER ingo@1129: ingo@1129: return artifactDirs; ingo@1129: } ingo@1129: ingo@1129: ingo@1129: ingo@1781: protected List parseLayers(File[] dirs) { ingo@1781: List layers = new ArrayList(); ingo@1129: ingo@1129: for (File dir: dirs) { ingo@1781: File[] layerFiles = dir.listFiles(new FilenameFilter() { ingo@1781: @Override ingo@1781: public boolean accept(File directory, String name) { ingo@1781: return name.startsWith(MS_LAYER_PREFIX); ingo@1781: } ingo@1781: }); ingo@1129: ingo@1781: for (File layer: layerFiles) { ingo@1781: try { ingo@1781: layers.add(layer.getCanonicalPath()); ingo@1781: } ingo@1781: catch (IOException ioe) { ingo@1781: logger.warn(ioe, ioe); ingo@1134: } ingo@1129: } ingo@1129: } ingo@1129: ingo@1129: return layers; ingo@1129: } ingo@1129: ingo@1129: ingo@1775: /** ingo@1775: * Creates a layer file used for Mapserver's mapfile which represents the ingo@1775: * floodmap. ingo@1775: * ingo@1775: * @param flys The FLYSArtifact that owns wms. ingo@1775: * @param wms The WMSLayerFacet that contains information for the layer. ingo@1775: */ ingo@1775: public void createUeskLayer(FLYSArtifact flys, WMSLayerFacet wms) ingo@1775: throws FileNotFoundException, IOException ingo@1775: { ingo@1775: logger.debug("createUeskLayer"); ingo@1775: ingo@1816: LayerInfo layerinfo = new LayerInfo(); ingo@1917: layerinfo.setName(MS_WSPLGEN_POSTFIX + flys.identifier()); ingo@1816: layerinfo.setType("POLYGON"); ingo@1816: layerinfo.setDirectory(flys.identifier()); ingo@1816: layerinfo.setData(WSPLGEN_RESULT_SHAPE); ingo@1816: layerinfo.setTitle("I18N_WSPLGEN_RESULT"); ingo@1775: ingo@1775: String name = MS_LAYER_PREFIX + wms.getName(); ingo@1775: ingo@1775: Template template = getTemplateByName(SHP_LAYER_TEMPLATE); ingo@1775: if (template == null) { ingo@1775: logger.warn("Template '" + SHP_LAYER_TEMPLATE + "' found."); ingo@1775: return; ingo@1775: } ingo@1775: ingo@1775: try { ingo@1775: File dir = new File(getShapefileBaseDir(), flys.identifier()); ingo@1775: writeLayer(layerinfo, dir, name, template); ingo@1775: } ingo@1775: catch (FileNotFoundException fnfe) { ingo@1775: logger.error(fnfe, fnfe); ingo@1775: logger.warn("Unable to write layer: " + name); ingo@1775: } ingo@1775: } ingo@1775: ingo@1775: ingo@1775: /** ingo@1775: * Creates a layer file used for Mapserver's mapfile which represents the ingo@1775: * user defined barriers. ingo@1775: * ingo@1775: * @param flys The FLYSArtifact that owns wms. ingo@1775: * @param wms The WMSLayerFacet that contains information for the layer. ingo@1775: */ ingo@1775: public void createBarriersLayer(FLYSArtifact flys, WMSLayerFacet wms) ingo@1775: throws FileNotFoundException, IOException ingo@1775: { ingo@1775: logger.debug("createBarriersLayer"); ingo@1775: ingo@1775: String uuid = flys.identifier(); ingo@1775: File dir = new File(getShapefileBaseDir(), uuid); ingo@1775: ingo@1830: createBarriersLineLayer(flys, wms); ingo@1830: createBarriersPolygonLayer(flys, wms); ingo@1830: } ingo@1830: ingo@1830: ingo@1830: protected void createBarriersLineLayer( ingo@1830: FLYSArtifact flys, ingo@1830: WMSLayerFacet wms ingo@1830: ) ingo@1830: throws FileNotFoundException, IOException ingo@1830: { ingo@1830: String uuid = flys.identifier(); ingo@1775: String group = uuid + MS_BARRIERS_POSTFIX; ingo@1775: String groupTitle = "I18N_BARRIERS_TITLE"; ingo@1775: ingo@1830: File dir = new File(getShapefileBaseDir(), uuid); ingo@1830: File test = new File(dir, WSPLGEN_LINES_SHAPE); ingo@1830: ingo@1830: if (!test.exists() || !test.canRead()) { ingo@1830: logger.debug("No barrier line layer existing."); ingo@1830: return; ingo@1830: } ingo@1830: ingo@1816: LayerInfo lineInfo = new LayerInfo(); ingo@1917: lineInfo.setName(MS_LINE_POSTFIX + uuid); ingo@1816: lineInfo.setType("LINE"); ingo@1816: lineInfo.setDirectory(uuid); ingo@1816: lineInfo.setData(WSPLGEN_LINES_SHAPE); ingo@1816: lineInfo.setTitle("I18N_LINE_SHAPE"); ingo@1816: lineInfo.setGroup(group); ingo@1816: lineInfo.setGroupTitle(groupTitle); ingo@1775: ingo@1830: String nameLines = MS_LAYER_PREFIX + wms.getName() + "-lines"; ingo@1775: ingo@1775: Template tpl = getTemplateByName(SHP_LAYER_TEMPLATE); ingo@1775: if (tpl == null) { ingo@1775: logger.warn("Template '" + SHP_LAYER_TEMPLATE + "' found."); ingo@1775: return; ingo@1775: } ingo@1775: ingo@1775: try { ingo@1775: writeLayer(lineInfo, dir, nameLines, tpl); ingo@1775: } ingo@1775: catch (FileNotFoundException fnfe) { ingo@1775: logger.error(fnfe, fnfe); ingo@1775: logger.warn("Unable to write layer: " + nameLines); ingo@1775: } ingo@1830: } ingo@1830: ingo@1830: ingo@1830: protected void createBarriersPolygonLayer( ingo@1830: FLYSArtifact flys, ingo@1830: WMSLayerFacet wms ingo@1830: ) ingo@1830: throws FileNotFoundException, IOException ingo@1830: { ingo@1830: String uuid = flys.identifier(); ingo@1830: String group = uuid + MS_BARRIERS_POSTFIX; ingo@1830: String groupTitle = "I18N_BARRIERS_TITLE"; ingo@1830: ingo@1830: File dir = new File(getShapefileBaseDir(), uuid); ingo@1830: File test = new File(dir, WSPLGEN_POLYGONS_SHAPE); ingo@1830: ingo@1830: if (!test.exists() || !test.canRead()) { ingo@1830: logger.debug("No barrier line layer existing."); ingo@1830: return; ingo@1830: } ingo@1830: ingo@1830: LayerInfo polygonInfo = new LayerInfo(); ingo@1917: polygonInfo.setName(MS_POLYGONS_POSTFIX + uuid); ingo@1830: polygonInfo.setType("POLYGON"); ingo@1830: polygonInfo.setDirectory(uuid); ingo@1830: polygonInfo.setData(WSPLGEN_POLYGONS_SHAPE); ingo@1830: polygonInfo.setTitle("I18N_POLYGON_SHAPE"); ingo@1830: polygonInfo.setGroup(group); ingo@1830: polygonInfo.setGroupTitle(groupTitle); ingo@1830: ingo@1830: String namePolygons = MS_LAYER_PREFIX + wms.getName() + "-polygons"; ingo@1830: ingo@1830: Template tpl = getTemplateByName(SHP_LAYER_TEMPLATE); ingo@1830: if (tpl == null) { ingo@1830: logger.warn("Template '" + SHP_LAYER_TEMPLATE + "' found."); ingo@1830: return; ingo@1830: } ingo@1775: ingo@1775: try { ingo@1775: writeLayer(polygonInfo, dir, namePolygons, tpl); ingo@1775: } ingo@1775: catch (FileNotFoundException fnfe) { ingo@1775: logger.error(fnfe, fnfe); ingo@1830: logger.warn("Unable to write layer: " + namePolygons); ingo@1775: } ingo@1775: } ingo@1775: ingo@1775: ingo@1781: /** ingo@1792: * Creates a layer file used for Mapserver's mapfile which represents ingo@1792: * geometries from database. ingo@1792: * ingo@1792: * @param flys The FLYSArtifact that owns wms. ingo@1792: * @param wms The WMSLayerFacet that contains information for the layer. ingo@1792: */ ingo@1793: public void createDatabaseLayer( ingo@1793: FLYSArtifact flys, ingo@1793: WMSDBLayerFacet wms, ingo@1793: String style ingo@1793: ) ingo@1792: throws FileNotFoundException, IOException ingo@1792: { ingo@1792: logger.debug("createDatabaseLayer"); ingo@1792: ingo@1816: LayerInfo layerinfo = new LayerInfo(); ingo@1917: layerinfo.setName(wms.getName() + "-" + flys.identifier()); ingo@1816: layerinfo.setType(wms.getGeometryType()); ingo@1816: layerinfo.setFilter(wms.getFilter()); ingo@1816: layerinfo.setData(wms.getData()); ingo@1816: layerinfo.setTitle(wms.getDescription()); ingo@1793: layerinfo.setStyle(style); ingo@1816: layerinfo.setExtent(GeometryUtils.jtsBoundsToOLBounds(wms.getExtent())); ingo@1854: layerinfo.setConnection(wms.getConnection()); ingo@1854: layerinfo.setConnectionType(wms.getConnectionType()); ingo@1876: layerinfo.setLabelItem(wms.getLabelItem()); ingo@1792: ingo@1792: String name = MS_LAYER_PREFIX + wms.getName(); ingo@1792: ingo@1792: Template template = getTemplateByName(DB_LAYER_TEMPLATE); ingo@1792: if (template == null) { ingo@1792: logger.warn("Template '" + DB_LAYER_TEMPLATE + "' found."); ingo@1792: return; ingo@1792: } ingo@1792: ingo@1792: try { ingo@1792: File dir = new File(getShapefileBaseDir(), flys.identifier()); ingo@1792: writeLayer(layerinfo, dir, name, template); ingo@1792: } ingo@1792: catch (FileNotFoundException fnfe) { ingo@1792: logger.error(fnfe, fnfe); ingo@1792: logger.warn("Unable to write layer: " + name); ingo@1792: } ingo@1792: } ingo@1792: ingo@1792: ingo@1792: /** ingo@1781: * Creates a layer snippet which might be included in the mapfile. ingo@1781: * ingo@1781: * @param layerinfo A LayerInfo object that contains all necessary ingo@1781: * information to build a Mapserver LAYER section. ingo@1781: * @param dir The base dir for the LAYER snippet. ingo@1781: * @param filename The name of the file that is written. ingo@1781: * @param tpl The Velocity template which is used to create the LAYER ingo@1781: * section. ingo@1781: */ ingo@1775: protected void writeLayer( ingo@1775: LayerInfo layerinfo, ingo@1775: File dir, ingo@1781: String filename, ingo@1775: Template tpl ingo@1775: ) ingo@1775: throws FileNotFoundException ingo@1775: { ingo@1775: if (logger.isDebugEnabled()) { ingo@1775: logger.debug("Write layer for:"); ingo@1775: logger.debug(" directory: " + dir.getName()); ingo@1781: logger.debug(" name: " + filename); ingo@1775: } ingo@1775: ingo@1781: File layer = new File(dir, filename); ingo@1775: Writer writer = null; ingo@1775: ingo@1775: try { ingo@1775: writer = new FileWriter(layer); ingo@1775: ingo@1792: VelocityContext context = getVelocityContext(); ingo@1775: context.put("LAYER", layerinfo); ingo@1775: ingo@1775: tpl.merge(context, writer); ingo@1775: } ingo@1775: catch (FileNotFoundException fnfe) { ingo@1775: logger.error(fnfe, fnfe); ingo@1775: } ingo@1775: catch (IOException ioe) { ingo@1775: logger.error(ioe, ioe); ingo@1775: } ingo@1775: catch (Exception e) { ingo@1775: logger.error(e, e); ingo@1775: } ingo@1775: finally { ingo@1775: try { ingo@1775: if (writer != null) { ingo@1775: writer.close(); ingo@1775: } ingo@1775: } ingo@1775: catch (IOException ioe) { ingo@1775: logger.debug(ioe, ioe); ingo@1775: } ingo@1775: } ingo@1775: } ingo@1775: ingo@1775: ingo@1129: /** ingo@1129: * Creates a mapfile with the layer information stored in layers. ingo@1129: * ingo@1129: * @param layers Layer information. ingo@1129: */ ingo@1781: protected void writeMapfile(List layers) { ingo@1129: String tmpMapName = "mapfile" + new Date().getTime(); ingo@1129: ingo@1129: File mapfile = new File( ingo@1129: FLYSUtils.getXPathString(FLYSUtils.XPATH_MAPFILE_PATH)); ingo@1129: ingo@1129: File tmp = null; ingo@1129: Writer writer = null; ingo@1129: ingo@1129: try { ingo@1129: tmp = new File(mapfile.getParent(), tmpMapName); ingo@1129: tmp.createNewFile(); ingo@1129: ingo@1129: writer = new FileWriter(tmp); ingo@1129: ingo@1792: VelocityContext context = getVelocityContext(); ingo@1781: context.put("LAYERS", layers); ingo@1129: ingo@1129: Template mapTemplate = getMapfileTemplate(); ingo@1129: if (mapTemplate == null) { ingo@1129: logger.warn("No mapfile template found."); ingo@1129: return; ingo@1129: } ingo@1129: ingo@1129: mapTemplate.merge(context, writer); ingo@1129: ingo@1129: // we need to create a temporary mapfile first und rename it into ingo@1129: // real mapfile because we don't run into race conditions on this ingo@1129: // way. (iw) ingo@1129: tmp.renameTo(mapfile); ingo@1129: } ingo@1129: catch (FileNotFoundException fnfe) { ingo@1129: logger.error(fnfe, fnfe); ingo@1129: } ingo@1129: catch (IOException ioe) { ingo@1129: logger.error(ioe, ioe); ingo@1129: } ingo@1129: catch (Exception e) { ingo@1129: logger.error(e, e); ingo@1129: } ingo@1129: finally { ingo@1129: try { ingo@1129: if (writer != null) { ingo@1129: writer.close(); ingo@1129: } ingo@1129: ingo@1129: if (tmp.exists()) { ingo@1129: tmp.delete(); ingo@1129: } ingo@1129: } ingo@1129: catch (IOException ioe) { ingo@1129: logger.debug(ioe, ioe); ingo@1129: } ingo@1129: } ingo@1129: } ingo@1129: } ingo@1129: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :