Automatic database upgrade from non page store is now possible

h2/src/tools/org/h2/build/upgrade/UpgradeCreator.java

+/*
+ * Copyright 2004-2010 H2 Group. Multiple-Licensed under the H2 License,
+ * Version 1.0, and under the Eclipse Public License, Version 1.0
+ * (http://h2database.com/html/license.html).
+ * Initial Developer: H2 Group
+ */
+package org.h2.build.upgrade;
+
+import java.io.File;
+import org.h2.build.BuildBase;
+
+/**
+ * Creates the v 1.1 upgrade sources
+ */
+public class UpgradeCreator {    
+    
+    public static void main(String[] args) throws Exception {
+        if (args.length != 2) {
+            System.out.println("Usage: java -cp . org.h2.build.upgrade.UpgradeCreator <srcdir> <destdir>");
+            System.exit(1);            
+        }
+        File srcDir = new File(args[0]);
+        if (!srcDir.exists()) {
+            System.out.println("Source dir does not exist");
+            System.exit(1);            
+        }
+        File destDir = new File(args[1]);
+        if (destDir.exists()) {
+            System.out.println("Destination dir already exists");
+            System.exit(1);            
+        }
+        destDir.mkdirs();
+        convert(srcDir, srcDir, destDir);
+    }
+    
+    private static void convert(File file, File srcDir, File destDir) throws Exception {
+        String pathInDestDir = file.getCanonicalPath().substring(srcDir.getCanonicalPath().length());
+        
+        pathInDestDir = pathInDestDir.replaceAll("org" + File.separator + "h2", 
+                "org" + File.separator + 
+                "h2" + File.separator + 
+                "upgrade" + File.separator + 
+                "v1_1");
+        File fileInDestDir = new File(destDir, pathInDestDir);
+//        System.out.println(fileInDestDir.getAbsoluteFile());
+        if (file.isDirectory()) {
+            fileInDestDir.mkdirs();
+            File[] files = file.listFiles();
+            for (File child : files) {
+                convert(child, srcDir, destDir);
+            }
+        } else {
+            byte[] content = BuildBase.readFile(file);
+            String contentString = new String(content);
+            if (file.getName().endsWith(".java")) {
+                contentString = replaceInJavaFile(file, contentString);
+            }
+            if (file.getName().equals("build.sh") || file.getName().equals("build.bat") || file.getName().equals("build.xml")) {
+                contentString = contentString.replaceAll("org\\.h2\\.build", "org.h2.upgrade.v1_1.build");
+                contentString = contentString.replaceAll("org/h2/", "org/h2/upgrade/v1_1/");
+            }
+            content = contentString.getBytes();
+            BuildBase.writeFile(fileInDestDir, content);            
+        }
+    }
+    
+    private static String replaceInJavaFile(File file, String content) {
+        content = content.replaceAll("import org\\.h2", "import org.h2.upgrade.v1_1");
+        content = content.replaceAll("import static org\\.h2", "import static org.h2.upgrade.v1_1");
+        content = content.replaceAll("package org\\.h2", "package org.h2.upgrade.v1_1");
+        content = content.replaceAll("org\\.h2\\.samples", "org.h2.upgrade.v1_1.samples");
+        content = content.replaceAll("org\\.h2\\.tools", "org.h2.upgrade.v1_1.tools");
+        content = content.replaceAll("org\\.h2\\.mode", "org.h2.upgrade.v1_1.mode");
+        content = content.replaceAll("org\\.h2\\.Driver\\.load\\(\\)", "org.h2.upgrade.v1_1.Driver.load()");
+        content = content.replaceAll("org\\.h2\\.Driver\\.unload\\(\\)", "org.h2.upgrade.v1_1.Driver.unload()");
+
+        if (file.getName().equals("ConnectionInfo.java")) {
+            content = content.replaceAll("boolean isPersistent\\(\\) \\{", "public boolean isPersistent() {");
+            content = content.replaceAll("String getName\\(\\) throws SQLException \\{", "public String getName() throws SQLException {");
+        }
+        if (file.getName().equals("Constants.java")) {
+            content = content.replaceAll("public static final String START_URL = \"jdbc:h2:\";", "public static final String START_URL = \"jdbc:h2v1_1:\";");
+        }
+        if (file.getName().equals("SessionRemote.java")) {
+            content = content.replaceAll("org\\.h2\\.engine\\.SessionFactoryEmbedded", "org.h2.upgrade.v1_1.engine.SessionFactoryEmbedded");
+        }
+        
+        return content;
+    }    
+    
+}
+