sascha@177: package de.intevation.flys.importer;
sascha@177: 
sascha@177: import java.io.File;
sascha@177: 
sascha@177: import java.util.List;
sascha@177: import java.util.ArrayList;
sascha@177: 
sascha@177: import java.util.regex.Pattern;
sascha@177: import java.util.regex.Matcher;
sascha@177: 
sascha@177: import java.io.IOException;
sascha@177: import java.io.LineNumberReader;
sascha@177: import java.io.FileInputStream;
sascha@177: import java.io.InputStreamReader;
sascha@177: 
sascha@177: import org.apache.log4j.Logger;
sascha@177: 
sascha@177: import de.intevation.flys.utils.FileTools;
sascha@177: 
sascha@177: public class InfoGewParser
sascha@177: {
sascha@177:     private static Logger log = Logger.getLogger(InfoGewParser.class);
sascha@177: 
sascha@177:     public static final String ENCODING = "ISO-8859-1";
sascha@177: 
sascha@177:     public static final Pattern GEWAESSER =
sascha@177:         Pattern.compile("^\\s*Gew\u00e4sser\\s*:\\s*(.+)");
sascha@177: 
sascha@177:     public static final Pattern WST_DATEI =
sascha@177:         Pattern.compile("^\\s*WSTDatei\\s*:\\s*(.+)");
sascha@177: 
sascha@177:     public static final Pattern BB_INFO =
sascha@177:         Pattern.compile("^\\s*B\\+B-Info\\s*:\\s*(.+)");
sascha@177: 
sascha@177:     protected ArrayList<ImportRiver> rivers;
sascha@177: 
sascha@177:     public InfoGewParser() {
sascha@177:         rivers = new ArrayList<ImportRiver>();
sascha@177:     }
sascha@177: 
sascha@177:     public static final String normalize(String f) {
sascha@177:         return f.replace("\\", "/").replace("/", File.separator);
sascha@177:     }
sascha@177: 
sascha@177:     public void parse(File file) throws IOException {
sascha@177: 
sascha@177:         LineNumberReader in = null;
sascha@177: 
sascha@177:         File root = file.getParentFile();
sascha@177: 
sascha@177:         ImportRiver importRiver = new ImportRiver();
sascha@177:         try {
sascha@177:             in =
sascha@177:                 new LineNumberReader(
sascha@177:                 new InputStreamReader(
sascha@177:                 new FileInputStream(file), ENCODING));
sascha@177: 
sascha@177:             String line = null;
sascha@177: 
sascha@177:             String riverName  = null;
sascha@177:             File   wstFile    = null;
sascha@177:             File   bbInfoFile = null;
sascha@177: 
sascha@177:             while ((line = in.readLine()) != null) {
sascha@177:                 if ((line = line.trim()).length() == 0) {
sascha@177:                     continue;
sascha@177:                 }
sascha@177:                 Matcher m = GEWAESSER.matcher(line);
sascha@177: 
sascha@177:                 if (m.matches()) {
sascha@177:                     String river = m.group(1);
sascha@177:                     log.info("Found river '" + river + "'");
sascha@177:                     if (riverName != null) {
sascha@177:                         rivers.add(new ImportRiver(riverName, wstFile, bbInfoFile));
sascha@177:                     }
sascha@177:                     riverName  = river;
sascha@177:                     wstFile    = null;
sascha@177:                     bbInfoFile = null;
sascha@177:                 }
sascha@177:                 else if ((m = WST_DATEI.matcher(line)).matches()) {
sascha@177:                     String wstFilename = m.group(1);
sascha@177:                     File wst = new File(wstFilename = normalize(wstFilename));
sascha@177:                     if (!wst.isAbsolute()) {
sascha@177:                         wst = new File(root, wstFilename);
sascha@177:                     }
sascha@177:                     wst = FileTools.repair(wst);
sascha@177:                     log.info("Found wst file '" + wst + "'");
sascha@177:                     if (!wst.isFile() || !wst.canRead()) {
sascha@177:                         log.warn("cannot access WST file '" + wstFilename + "'");
sascha@177:                         continue;
sascha@177:                     }
sascha@177:                     wstFile = wst;
sascha@177:                 }
sascha@177:                 else if ((m = BB_INFO.matcher(line)).matches()) {
sascha@177:                     //TODO: Make it relative to the wst file.
sascha@177:                     String bbInfo = m.group(1);
sascha@177:                     bbInfoFile = new File(normalize(bbInfo));
sascha@177:                 }
sascha@177:             }
sascha@177:             if (riverName != null) {
sascha@177:                 rivers.add(new ImportRiver(riverName, wstFile, bbInfoFile));
sascha@177:             }
sascha@177:         }
sascha@177:         finally {
sascha@177:             if (in != null) {
sascha@177:                 in.close();
sascha@177:             }
sascha@177:         }
sascha@177:     }
sascha@177: }
sascha@177: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :