bundles/org.simantics.db.procore.server.environment/src/org/simantics/db/procore/server/environment/windows/Msi.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.db.procore.server.environment.windows;\r
  13 \r
  14 import java.io.Closeable;\r
  15 import java.io.File;\r
  16 import java.io.FileInputStream;\r
  17 import java.io.FileNotFoundException;\r
  18 import java.io.FileOutputStream;\r
  19 import java.io.IOException;\r
  20 import java.io.InputStream;\r
  21 import java.net.URL;\r
  22 import java.net.URLDecoder;\r
  23 import java.security.MessageDigest;\r
  24 import java.security.NoSuchAlgorithmException;\r
  25 import java.util.Arrays;\r
  26 \r
  27 import org.simantics.db.procore.server.environment.ExecutionEnvironment;\r
  28 import org.simantics.db.procore.server.environment.ExecutionEnvironmentException;\r
  29 \r
  30 /**\r
  31  * Provides Java access to Windows Msi API functions:\r
  32  * <ul>\r
  33  * <li>{@link #MsiQueryProductState(String)} (see <a\r
  34  * href="http://msdn.microsoft.com/en-us/library/aa370363(VS.85).aspx">MSDN</a>)</li>\r
  35  * </ul>\r
  36  * \r
  37  * @author Tuukka Lehtonen\r
  38  */\r
  39 public class Msi {\r
  40 \r
  41     public static void checkOneOfProductsInstalled(Product... products) throws ExecutionEnvironmentException {\r
  42         StringBuilder sb = new StringBuilder();\r
  43         sb.append("None of the following products are installed properly:\n");\r
  44         for (Product product : products) {\r
  45             ProductState state = Msi.MsiQueryProductState(product.getCode());\r
  46             switch (state) {\r
  47                 case DEFAULT:\r
  48                     // One of the listed products is installed OK.\r
  49                     return;\r
  50                 default:\r
  51                     sb.append("\t" + product);\r
  52                     sb.append(" - MsiQueryProductState returned ");\r
  53                     sb.append(state);\r
  54                     sb.append("\n");\r
  55             }\r
  56         }\r
  57         throw new ExecutionEnvironmentException("Cannot run ProCore database server in this environment due to the following problems:\n" + sb.toString(), Arrays.asList(products));\r
  58     }\r
  59 \r
  60     public static void checkProductsInstalled(Product... products) throws ExecutionEnvironmentException {\r
  61         StringBuilder sb = new StringBuilder();\r
  62         for (Product product : products) {\r
  63             ProductState state = Msi.MsiQueryProductState(product.getCode());\r
  64             switch (state) {\r
  65                 case DEFAULT:\r
  66                     // Installed OK\r
  67                     continue;\r
  68                 default:\r
  69                     sb.append("\tProduct " + product + " is not installed properly, MsiQueryProductState returned " + state);\r
  70                     sb.append("\n");\r
  71             }\r
  72         }\r
  73         if (sb.length() > 0) {\r
  74             // Something is not installed right, throw exception\r
  75             throw new ExecutionEnvironmentException("Cannot run ProCore database server in this environment due to the following problems:\n" + sb.toString(), Arrays.asList(products));\r
  76         }\r
  77     }\r
  78 \r
  79     // -------------------------------------------------------------------------\r
  80 \r
  81     public static ProductState MsiQueryProductState(String productCode) {\r
  82         int result = MsiQueryProductState0(productCode);\r
  83         return ProductState.of(result);\r
  84     }\r
  85 \r
  86     private static native int MsiQueryProductState0(String productCode);\r
  87 \r
  88     // -------------------------------------------------------------------------\r
  89 \r
  90     private static final String DLL_NAME = "msijni.dll";\r
  91     private static final String DLL_NAME_64 = "msijni64.dll";\r
  92 \r
  93     static {\r
  94         initialize();\r
  95     }\r
  96 \r
  97     private static void initialize() {\r
  98         ExecutionEnvironment env = ExecutionEnvironment.calculate();\r
  99         String libName = null;\r
 100         switch (env.arch) {\r
 101             case X86:\r
 102                 libName = DLL_NAME;\r
 103                 break;\r
 104             case X86_64:\r
 105                 libName = DLL_NAME_64;\r
 106                 break;\r
 107             default:\r
 108                 return;\r
 109         }\r
 110 \r
 111         URL libURL = Msi.class.getResource("/" + libName);\r
 112         if (libURL != null) {\r
 113             try {\r
 114                 if ("file".equals(libURL.getProtocol())) {\r
 115                     File path = new File(URLDecoder.decode(libURL.getPath(), "UTF-8"));\r
 116                     initialize(path);\r
 117                 } else {\r
 118                     File libFile = extractLib(libURL, libName);\r
 119                     initialize(libFile);\r
 120                 }\r
 121             } catch (IOException e) {\r
 122                 e.printStackTrace();\r
 123             }\r
 124         }\r
 125     }\r
 126 \r
 127     private static void initialize(File path) {\r
 128         //System.out.println("load msijni: " + path);\r
 129         System.load(path.toString());\r
 130     }\r
 131 \r
 132     /**\r
 133      * Extracts the specified source file in the specified bundle into the\r
 134      * specified local directory.\r
 135      * \r
 136      * @param url the source URL to stream the resource from\r
 137      * @param targetFile the target file to write the resource to\r
 138      * @param deleteOnExit <code>true</code> to use {@link File#deleteOnExit()}\r
 139      *        on the resulting file. Note that this does not guarantee that the\r
 140      *        file is deleted when the JVM exits\r
 141      * @return the resulting file\r
 142      * @throws FileNotFoundException\r
 143      */\r
 144     private static File copyResource(URL url, File targetFile) throws IOException, FileNotFoundException {\r
 145         FileOutputStream os = null;\r
 146         InputStream is = null;\r
 147         try {\r
 148             if (targetFile.exists())\r
 149                 targetFile.delete();\r
 150 \r
 151             is = url.openStream();\r
 152             int read;\r
 153             byte [] buffer = new byte [16384];\r
 154             os = new FileOutputStream (targetFile);\r
 155             while ((read = is.read (buffer)) != -1) {\r
 156                 os.write(buffer, 0, read);\r
 157             }\r
 158             os.close ();\r
 159             is.close ();\r
 160 \r
 161             return targetFile;\r
 162         } finally {\r
 163             uncheckedClose(os);\r
 164             uncheckedClose(is);\r
 165         }\r
 166     }\r
 167 \r
 168 \r
 169     private static void uncheckedClose(Closeable closeable) {\r
 170         try {\r
 171             if (closeable != null)\r
 172                 closeable.close();\r
 173         } catch (IOException e) {\r
 174             //ignore\r
 175         }\r
 176     }\r
 177 \r
 178     private static File extractLib(URL libURL, String libName) throws FileNotFoundException, IOException {\r
 179         String tmpDirStr = System.getProperty("java.io.tmpdir");\r
 180         if (tmpDirStr == null)\r
 181             throw new NullPointerException("java.io.tmpdir property is null");\r
 182         File tmpDir = new File(tmpDirStr);\r
 183         File libFile = new File(tmpDir, libName);\r
 184 \r
 185         if (libFile.exists()) {\r
 186             if (libFile.isFile()) {\r
 187                 try {\r
 188                     byte[] origSum = computeSum(libURL);\r
 189                     byte[] targetSum = computeSum(libFile);\r
 190                     if (Arrays.equals(origSum, targetSum))\r
 191                         return libFile;\r
 192                 } catch (NoSuchAlgorithmException e) {\r
 193                     // TODO Auto-generated catch block\r
 194                     e.printStackTrace();\r
 195                 }\r
 196             }\r
 197         }\r
 198 \r
 199         return copyResource(libURL, libFile);\r
 200     }\r
 201 \r
 202     public static byte[] computeSum(InputStream in) throws IOException {\r
 203         if (in == null)\r
 204             throw new IllegalArgumentException("Input cannot be null!");\r
 205 \r
 206         try {\r
 207             MessageDigest md = MessageDigest.getInstance("MD5");\r
 208             byte[] data = new byte[64 * 1024];\r
 209 \r
 210             while (true) {\r
 211                 int read = in.read(data);\r
 212                 if (read == -1) {\r
 213                     return md.digest();\r
 214                 }\r
 215                 md.update(data, 0, read);\r
 216             }\r
 217         } catch (NoSuchAlgorithmException e) {\r
 218             // Should not be possible for MD5\r
 219             throw new IOException(e);\r
 220         }\r
 221     }\r
 222 \r
 223     public static byte[] computeSum(File f) throws IOException, NoSuchAlgorithmException {\r
 224         InputStream in = null;\r
 225         try {\r
 226             in = new FileInputStream(f);\r
 227             return computeSum(in);\r
 228         } finally {\r
 229             if (in != null)\r
 230                 in.close();\r
 231         }\r
 232     }\r
 233 \r
 234     public static byte[] computeSum(URL url) throws IOException, NoSuchAlgorithmException {\r
 235         InputStream in = null;\r
 236         try {\r
 237             in = url.openStream();\r
 238             return computeSum(in);\r
 239         } finally {\r
 240             if (in != null)\r
 241                 in.close();\r
 242         }\r
 243     }\r
 244 \r
 245 }