bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/modulebrowser/CreateModuleAction.java

   1 package org.simantics.scl.ui.modulebrowser;
   2
   3 import java.io.IOException;
   4 import java.nio.file.Files;
   5 import java.nio.file.Path;
   6 import java.nio.file.Paths;
   7
   8 import org.osgi.framework.Bundle;
   9 import org.osgi.framework.BundleContext;
  10 import org.simantics.scl.ui.Activator;
  11
  12 import gnu.trove.map.hash.THashMap;
  13
  14 public class CreateModuleAction {
  15     public static final String PREFIX = "reference:file:/"; //$NON-NLS-1$
  16
  17     public static final void createModule(Bundle bundle, String packageName, String moduleName) throws IOException {
  18         String bundleLocation = bundle.getLocation();
  19         bundleLocation = bundleLocation.substring(PREFIX.length());
  20
  21         Path packagePath = Paths.get(bundleLocation).resolve("scl").resolve(packageName); //$NON-NLS-1$
  22         Files.createDirectories(packagePath);
  23         Path modulePath = packagePath.resolve(moduleName + ".scl"); //$NON-NLS-1$
  24         if(Files.exists(modulePath))
  25             return;
  26         Files.createFile(modulePath);
  27     }
  28
  29     public static THashMap<String,Bundle> findGoodBundles() {
  30         BundleContext context = Activator.getInstance().getBundle().getBundleContext();
  31         THashMap<String,Bundle> result = new THashMap<String,Bundle>();
  32         for(Bundle bundle : context.getBundles()) {
  33             String location = bundle.getLocation();
  34             if(location.endsWith(".jar") || !location.startsWith(PREFIX)) //$NON-NLS-1$
  35                 continue;
  36             location = location.substring(PREFIX.length());
  37             Path bundlePath = Paths.get(location);
  38             if(!Files.isDirectory(bundlePath))
  39                 continue;
  40             result.put(bundle.getSymbolicName(), bundle);
  41         }
  42         return result;
  43     }
  44
  45     public static String findBestPlugin(THashMap<String,Bundle> bundles, String packageName) {
  46         for(Bundle bundle : bundles.values()) {
  47             String location = bundle.getLocation();
  48             location = location.substring(PREFIX.length());
  49             Path packagePath = Paths.get(location).resolve("scl").resolve(packageName); //$NON-NLS-1$
  50             if(Files.exists(packagePath))
  51                 return bundle.getSymbolicName();
  52         }
  53         int p = packageName.lastIndexOf('/');
  54         if(p == -1)
  55             return ""; //$NON-NLS-1$
  56         else
  57             return findBestPlugin(bundles, packageName.substring(0, p));
  58     }
  59
  60     public static int packageMatchLength(Bundle bundle, String packageName) {
  61         if(bundle.getEntry("scl") == null) //$NON-NLS-1$
  62             return 0;
  63         packageName = "scl/" + packageName; //$NON-NLS-1$
  64         while(packageName.length() > 3) {
  65             if(bundle.getEntry(packageName) != null)
  66                 return packageName.length();
  67             int p = packageName.lastIndexOf('/');
  68             packageName = packageName.substring(0, p);
  69         }
  70         return 3;
  71     }
  72 }