Mercurial > dive4elements > gnv-client
view gnv-artifacts/src/main/java/de/intevation/gnv/utils/MetaWriter.java @ 733:18dc6a99f4f4
Fixed NPE will using StateBase without a given Query.
gnv-artifacts/trunk@771 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Tim Englich <tim.englich@intevation.de> |
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date | Mon, 15 Mar 2010 12:34:40 +0000 |
parents | 452fad121560 |
children | cd64ab8a46a7 |
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package de.intevation.gnv.utils; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import org.apache.log4j.Logger; import org.w3c.dom.Document; import org.w3c.dom.Element; import de.intevation.artifactdatabase.XMLUtils; import de.intevation.artifacts.ArtifactNamespaceContext; import de.intevation.artifacts.CallContext; import de.intevation.gnv.artifacts.context.GNVArtifactContext; import de.intevation.gnv.wms.LayerInfo; /** * @author Ingo Weinzierl (ingo.weinzierl@intevation.de) */ public class MetaWriter { private static Logger logger = Logger.getLogger(MetaWriter.class); public static final String NODE_MAPSERVER = "mapserver"; public static final String NODE_SERVER = "server"; public static final String NODE_MAP = "map"; public static final String META_FILE_NAME = "meta.xml"; public static final String ISOLINES_NAME = "isolines.shp"; public static final String POLYGON_NAME = "polygons.shp"; public static final String LAYER_DATA_NAME = "data.shp"; public static final String CONTEXT_LAYER_TITLE = "wms.title"; private MetaWriter() { } public static Document writeLayerMeta(CallContext context, String uuid, String path, String paramType, String layerType){ Document meta = XMLUtils.newDocument(); XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( meta, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element root = creator.create("meta"); meta.appendChild(root); writeAbstractMeta(context, meta, root); writeLayerMeta(context, meta, root, uuid, paramType,layerType); boolean success = writeMetaFile(path, meta); if (success){ return meta; }else{ return null; } } public static Document writeHorizontalcrosssectionMeta( CallContext context, String uuid, String path, String paramType) { Document meta = XMLUtils.newDocument(); XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( meta, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element root = creator.create("meta"); meta.appendChild(root); writeAbstractMeta(context, meta, root); writePolygonMeta(context, meta, root, uuid, path, paramType); writeIsolineMeta(context, meta, root, uuid, path, paramType); boolean success = writeMetaFile(path, meta); if (success){ return meta; }else{ return null; } } /** * @param path * @param meta */ private static boolean writeMetaFile(String path, Document meta) { try { File metaFile = new File(path, META_FILE_NAME); if (metaFile.exists()) { logger.info("Delete old meta information file."); metaFile.delete(); } if (!metaFile.createNewFile() || !metaFile.canWrite()) { logger.error("Error while writing meta file: "+metaFile.toString()); return false; } OutputStream out = null; boolean success = false; try { out = new FileOutputStream(metaFile); success = XMLUtils.toStream(meta, out); } finally { if (out != null) { try { out.close(); } catch (IOException ioe) {} } } if (!success && metaFile.exists()) { metaFile.delete(); } return success; } catch (FileNotFoundException fnfe) { logger.error(fnfe); return false; } catch (IOException ioe) { logger.error(ioe, ioe); return false; } } public static void writeAbstractMeta( CallContext callContext, Document document, Element meta ) { XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( document, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); GNVArtifactContext context = (GNVArtifactContext) callContext.globalContext(); String server = (String) context.get(GNVArtifactContext.MAPSERVER_SERVER_PATH_KEY); String map = (String) context.get(GNVArtifactContext.MAPSERVER_MAP_PATH_KEY); logger.debug("MAPSERVER PATH: " + server); logger.debug("MAP PATH: " + map); Element mapserver = creator.create(NODE_MAPSERVER); Element serverPath = creator.create(NODE_SERVER); Element mapPath = creator.create(NODE_MAP); mapPath.setTextContent(map); serverPath.setTextContent(server); mapserver.appendChild(serverPath); mapserver.appendChild(mapPath); meta.appendChild(mapserver); } protected static void writeLayerMeta( CallContext context, Document document, Element meta, String uuid, String paramType, String layerType ) { XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( document, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element layer = creator.create(LayerInfo.LAYER); Element model = creator.create(LayerInfo.LAYER_MODEL); Element name = creator.create(LayerInfo.LAYER_NAME); Element type = creator.create(LayerInfo.LAYER_TYPE); Element status = creator.create(LayerInfo.LAYER_STATUS); Element data = creator.create(LayerInfo.LAYER_DATA); model.setTextContent(paramType); name.setTextContent(uuid); type.setTextContent(layerType); status.setTextContent("OFF"); data.setTextContent(LAYER_DATA_NAME); layer.appendChild(model); layer.appendChild(name); layer.appendChild(type); layer.appendChild(status); layer.appendChild(data); meta.appendChild(layer); } public static void writePolygonMeta( CallContext context, Document document, Element meta, String uuid, String path, String paramType ) { XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( document, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element layer = creator.create(LayerInfo.LAYER); Element model = creator.create(LayerInfo.LAYER_MODEL); Element name = creator.create(LayerInfo.LAYER_NAME); Element title = creator.create(LayerInfo.LAYER_TITLE); Element type = creator.create(LayerInfo.LAYER_TYPE); Element status = creator.create(LayerInfo.LAYER_STATUS); Element data = creator.create(LayerInfo.LAYER_DATA); model.setTextContent(paramType); name.setTextContent(uuid); title.setTextContent( (String) context.getContextValue(CONTEXT_LAYER_TITLE)); type.setTextContent("POLYGON"); status.setTextContent("OFF"); data.setTextContent(POLYGON_NAME); layer.appendChild(model); layer.appendChild(name); layer.appendChild(title); layer.appendChild(type); layer.appendChild(status); layer.appendChild(data); meta.appendChild(layer); } public static void writeIsolineMeta( CallContext context, Document document, Element meta, String uuid, String path, String paramType ) { XMLUtils.ElementCreator creator = new XMLUtils.ElementCreator( document, ArtifactNamespaceContext.NAMESPACE_URI, ArtifactNamespaceContext.NAMESPACE_PREFIX); Element layer = creator.create(LayerInfo.LAYER); Element model = creator.create(LayerInfo.LAYER_MODEL); Element name = creator.create(LayerInfo.LAYER_NAME); Element title = creator.create(LayerInfo.LAYER_TITLE); Element type = creator.create(LayerInfo.LAYER_TYPE); Element status = creator.create(LayerInfo.LAYER_STATUS); Element data = creator.create(LayerInfo.LAYER_DATA); model.setTextContent(paramType+"_isolines"); name.setTextContent(uuid); title.setTextContent( (String) context.getContextValue(CONTEXT_LAYER_TITLE)); type.setTextContent("LINE"); status.setTextContent("OFF"); data.setTextContent(ISOLINES_NAME); layer.appendChild(model); layer.appendChild(name); layer.appendChild(title); layer.appendChild(type); layer.appendChild(status); layer.appendChild(data); meta.appendChild(layer); } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :