(refs #7362) Creation of new SCL modules in SCL module browser

[simantics/platform.git] / bundles / org.simantics.scl.ui / src / org / simantics / scl / ui / modulebrowser / CreateModuleAction.java

diff --git a/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/modulebrowser/CreateModuleAction.java b/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/modulebrowser/CreateModuleAction.java
new file mode 100644 (file)
index 0000000..1d70442
--- /dev/null
+++ b/bundles/org.simantics.scl.ui/src/org/simantics/scl/ui/modulebrowser/CreateModuleAction.java
@@ -0,0 +1,72 @@
+package org.simantics.scl.ui.modulebrowser;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleContext;
+import org.simantics.scl.ui.Activator;
+
+import gnu.trove.map.hash.THashMap;
+
+public class CreateModuleAction {
+    public static final String PREFIX = "reference:file:/";
+    
+    public static final void createModule(Bundle bundle, String packageName, String moduleName) throws IOException {
+        String bundleLocation = bundle.getLocation();
+        bundleLocation = bundleLocation.substring(PREFIX.length());
+        
+        Path packagePath = Paths.get(bundleLocation).resolve("scl").resolve(packageName);
+        Files.createDirectories(packagePath);
+        Path modulePath = packagePath.resolve(moduleName + ".scl");
+        if(Files.exists(modulePath))
+            return;
+        Files.createFile(modulePath);
+    }
+    
+    public static THashMap<String,Bundle> findGoodBundles() {
+        BundleContext context = Activator.getInstance().getBundle().getBundleContext();
+        THashMap<String,Bundle> result = new THashMap<String,Bundle>();
+        for(Bundle bundle : context.getBundles()) {
+            String location = bundle.getLocation();
+            if(location.endsWith(".jar") || !location.startsWith(PREFIX))
+                continue;
+            location = location.substring(PREFIX.length());
+            Path bundlePath = Paths.get(location);
+            if(!Files.isDirectory(bundlePath))
+                continue;
+            result.put(bundle.getSymbolicName(), bundle);
+        }
+        return result;
+    }
+ 
+    public static String findBestPlugin(THashMap<String,Bundle> bundles, String packageName) {
+        for(Bundle bundle : bundles.values()) {
+            String location = bundle.getLocation();
+            location = location.substring(PREFIX.length());
+            Path packagePath = Paths.get(location).resolve("scl").resolve(packageName);
+            if(Files.exists(packagePath))
+                return bundle.getSymbolicName();
+        }
+        int p = packageName.lastIndexOf('/');
+        if(p == -1)
+            return "";
+        else
+            return findBestPlugin(bundles, packageName.substring(0, p));
+    }
+
+    public static int packageMatchLength(Bundle bundle, String packageName) {
+        if(bundle.getEntry("scl") == null)
+            return 0;
+        packageName = "scl/" + packageName;
+        while(packageName.length() > 3) {
+            if(bundle.getEntry(packageName) != null)
+                return packageName.length();
+            int p = packageName.lastIndexOf('/');
+            packageName = packageName.substring(0, p);
+        }
+        return 3;
+    }
+}