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From rf...@apache.org
Subject svn commit: r712253 - in /tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler: ./ src/main/java/org/apache/tuscany/sca/tools/maven/compiler/ src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/
Date Fri, 07 Nov 2008 20:20:02 GMT
Author: rfeng
Date: Fri Nov  7 12:20:02 2008
New Revision: 712253

URL: http://svn.apache.org/viewvc?rev=712253&view=rev
Log:
Add initial support to enforce OSGi bundle resolution during compilation

Added:
    tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/
    tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java   (with props)
    tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleUtil.java   (with props)
Modified:
    tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/pom.xml
    tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/JavaCompiler.java

Modified: tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/pom.xml
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/pom.xml?rev=712253&r1=712252&r2=712253&view=diff
==============================================================================
--- tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/pom.xml (original)
+++ tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/pom.xml Fri Nov  7 12:20:02 2008
@@ -91,6 +91,13 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        
+        <dependency>
+            <groupId>org.eclipse</groupId>
+            <artifactId>osgi</artifactId>
+            <version>3.3.0-v20070530</version>
+            <scope>compile</scope>
+        </dependency>
 
 <!--
         <dependency>

Modified: tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/JavaCompiler.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/JavaCompiler.java?rev=712253&r1=712252&r2=712253&view=diff
==============================================================================
--- tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/JavaCompiler.java (original)
+++ tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/JavaCompiler.java Fri Nov  7 12:20:02 2008
@@ -43,6 +43,7 @@
 import java.util.Map;
 import java.util.Set;
 
+import org.apache.tuscany.sca.tools.maven.compiler.osgi.BundleResolver;
 import org.codehaus.plexus.compiler.AbstractCompiler;
 import org.codehaus.plexus.compiler.CompilerConfiguration;
 import org.codehaus.plexus.compiler.CompilerError;
@@ -53,6 +54,8 @@
 import org.eclipse.jdt.internal.compiler.env.INameEnvironment;
 import org.eclipse.jdt.internal.compiler.impl.CompilerOptions;
 import org.eclipse.jdt.internal.compiler.problem.DefaultProblemFactory;
+import org.eclipse.osgi.service.resolver.BundleDescription;
+import org.osgi.framework.BundleException;
 
 /**
  * A custom Plexus Java compiler plugin that uses the Eclipse compiler.
@@ -60,26 +63,53 @@
  * @version $Rev: $ $Date: $
  */
 public class JavaCompiler extends AbstractCompiler {
-    
+
     public JavaCompiler() {
         super(ONE_OUTPUT_FILE_PER_INPUT_FILE, ".java", ".class", null);
     }
 
     public List<CompilerError> compile(CompilerConfiguration configuration) throws CompilerException {
-        
+        BundleResolver stateController = new BundleResolver(getLogger());
+
         getLogger().info("Invoking Tuscany Eclipse JDT compiler");
 
-        List<URL> urls;
+        // getLogger().info(configuration.getCustomCompilerArguments().toString());
+        boolean osgi = "true".equals(configuration.getCustomCompilerArguments().get("-osgi"));
+        if (osgi) {
+            getLogger().info("Enforcing OSGi bundle resolution");
+        }
+        List<URL> urls = new ArrayList<URL>();
         try {
-            urls = new ArrayList<URL>();
-            urls.add(new File(configuration.getOutputLocation()).toURI().toURL());
-            for (String entry: (List<String>)configuration.getClasspathEntries()) {
+            //            urls.add(new File(configuration.getOutputLocation()).toURI().toURL());
+            for (String entry : (List<String>)configuration.getClasspathEntries()) {
+                if (osgi) {
+                    try {
+                        stateController.addBundle(new File(entry));
+                    } catch (BundleException e) {
+                        getLogger().error(e.getMessage(), e);
+                    }
+                }
                 urls.add(new File(entry).toURI().toURL());
             }
         } catch (MalformedURLException e) {
             throw new CompilerException(e.getMessage(), e);
         }
 
+        if (osgi) {
+            stateController.resolveState();
+            for (BundleDescription b : stateController.getBundles()) {
+                if (b != null) {
+                    try {
+                        stateController.assertResolved(b);
+                    } catch (BundleException e) {
+                        getLogger().error(stateController.getAllErrors().toString());
+                        // FIXME: For now, only a warning is reported
+                        // throw new CompilerException(e.getMessage(), e);
+                    }
+                }
+            }
+        }
+
         ClassLoader classLoader = new URLClassLoader(urls.toArray(new URL[urls.size()]));
 
         // Determine compiler configuration
@@ -108,48 +138,49 @@
 
         // Create a compiler
         List<CompilerError> compilerErrors = new ArrayList<CompilerError>();
-        INameEnvironment nameEnvironment = new ClassLoaderNameEnvironment(classLoader, configuration.getSourceLocations());
-        ICompilerRequestor requestor = new CompilerRequestor(configuration.getOutputLocation(), configuration.isShowWarnings(), compilerErrors);
-        Compiler compiler = new Compiler(nameEnvironment,
-                                         proceedWithAllProblems(),
-                                         new CompilerOptions(settings),
-                                         requestor,
-                                         new DefaultProblemFactory(Locale.getDefault()));
+        INameEnvironment nameEnvironment =
+            new ClassLoaderNameEnvironment(classLoader, configuration.getSourceLocations());
+        ICompilerRequestor requestor =
+            new CompilerRequestor(configuration.getOutputLocation(), configuration.isShowWarnings(), compilerErrors);
+        Compiler compiler =
+            new Compiler(nameEnvironment, proceedWithAllProblems(), new CompilerOptions(settings), requestor,
+                         new DefaultProblemFactory(Locale.getDefault()));
 
         // Create compilation units for the source files
         List<FileCompilationUnit> compilationUnits = new ArrayList<FileCompilationUnit>();
-        
+
         // Go over the input source locations
-        List<String> sourceLocations = (List<String>)configuration.getSourceLocations(); 
+        List<String> sourceLocations = (List<String>)configuration.getSourceLocations();
         for (String sourceLocation : sourceLocations) {
-            
+
             // Exclude nested source locations
-            List<String> excludeLocations = new ArrayList<String>(); 
+            List<String> excludeLocations = new ArrayList<String>();
             for (String nestedLocation : sourceLocations) {
                 if (nestedLocation != sourceLocation && nestedLocation.startsWith(sourceLocation)) {
                     excludeLocations.add(nestedLocation);
                 }
             }
-            
+
             // List source files in each source location
-            for (String sourceFile: (Set<String>)getSourceFilesForSourceRoot(configuration, sourceLocation)) {
-                
+            for (String sourceFile : (Set<String>)getSourceFilesForSourceRoot(configuration, sourceLocation)) {
+
                 // Exclude files from excluded nested locations
                 boolean excluded = false;
-                for (String excludeLocation: excludeLocations) {
+                for (String excludeLocation : excludeLocations) {
                     if (sourceFile.startsWith(excludeLocation)) {
                         excluded = true;
                     }
                 }
                 if (!excluded) {
-                  
+
                     // Create a compilation unit for the source file
-                    FileCompilationUnit compilationUnit = new FileCompilationUnit(sourceFile, makeClassName(sourceFile, sourceLocation));
+                    FileCompilationUnit compilationUnit =
+                        new FileCompilationUnit(sourceFile, makeClassName(sourceFile, sourceLocation));
                     compilationUnits.add(compilationUnit);
                 }
             }
         }
-        
+
         // Compile all the compilation units
         getLogger().info("Compiling " + compilationUnits.size() + " to " + configuration.getOutputLocation());
         compiler.compile((ICompilationUnit[])compilationUnits.toArray(new ICompilationUnit[compilationUnits.size()]));

Added: tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java?rev=712253&view=auto
==============================================================================
--- tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java (added)
+++ tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java Fri Nov  7 12:20:02 2008
@@ -0,0 +1,402 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+package org.apache.tuscany.sca.tools.maven.compiler.osgi;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Dictionary;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedHashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.jar.Attributes;
+import java.util.jar.Manifest;
+
+import org.apache.maven.project.MavenProject;
+import org.codehaus.plexus.logging.Logger;
+import org.eclipse.osgi.service.resolver.BundleDescription;
+import org.eclipse.osgi.service.resolver.BundleSpecification;
+import org.eclipse.osgi.service.resolver.ExportPackageDescription;
+import org.eclipse.osgi.service.resolver.HostSpecification;
+import org.eclipse.osgi.service.resolver.ImportPackageSpecification;
+import org.eclipse.osgi.service.resolver.ResolverError;
+import org.eclipse.osgi.service.resolver.State;
+import org.eclipse.osgi.service.resolver.StateObjectFactory;
+import org.eclipse.osgi.service.resolver.VersionConstraint;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleException;
+import org.osgi.framework.Constants;
+
+public class BundleResolver {
+    private static final String PROP_MAVEN_PROJECT = "MavenProject";
+    private static final String PROP_MANIFEST = "BundleManifest";
+
+    private StateObjectFactory factory = StateObjectFactory.defaultFactory;
+    private State state;
+    private long id = 0;
+    private Logger logger;
+
+    public static BundleDescription[] getDependentBundles(BundleDescription root) {
+        if (root == null)
+            return new BundleDescription[0];
+        BundleDescription[] imported = getImportedBundles(root);
+        BundleDescription[] required = getRequiredBundles(root);
+        BundleDescription[] dependents = new BundleDescription[imported.length + required.length];
+        System.arraycopy(imported, 0, dependents, 0, imported.length);
+        System.arraycopy(required, 0, dependents, imported.length, required.length);
+        return dependents;
+    }
+
+    public static BundleDescription[] getImportedBundles(BundleDescription root) {
+        if (root == null)
+            return new BundleDescription[0];
+        ExportPackageDescription[] packages = root.getResolvedImports();
+        List<BundleDescription> resolvedImports = new ArrayList<BundleDescription>(packages.length);
+        for (int i = 0; i < packages.length; i++)
+            if (!root.getLocation().equals(packages[i].getExporter().getLocation()) && !resolvedImports
+                .contains(packages[i].getExporter()))
+                resolvedImports.add(packages[i].getExporter());
+        return (BundleDescription[])resolvedImports.toArray(new BundleDescription[resolvedImports.size()]);
+    }
+
+    public static BundleDescription[] getRequiredBundles(BundleDescription root) {
+        if (root == null)
+            return new BundleDescription[0];
+        return root.getResolvedRequires();
+    }
+
+    public BundleResolver(Logger logger) {
+        this.logger = logger;
+        this.state = factory.createState(true);
+        Properties props = new Properties();
+        props.putAll(System.getProperties());
+        BundleUtil.loadVMProfile(props);
+        state.setPlatformProperties(props);
+        URL url = Bundle.class.getProtectionDomain().getCodeSource().getLocation();
+
+        File osgi = toFile(url);
+        try {
+            addBundle(osgi);
+        } catch (BundleException e) {
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    private long getNextId() {
+        return ++id;
+    }
+
+    public BundleDescription addBundle(File bundleLocation) throws BundleException {
+        return addBundle(bundleLocation, false);
+    }
+
+    public BundleDescription addBundle(File bundleLocation, boolean override) throws BundleException {
+        if (bundleLocation == null || !bundleLocation.exists())
+            throw new IllegalArgumentException("bundleLocation not found: " + bundleLocation);
+        Dictionary manifest = loadManifestAttributes(bundleLocation);
+        if (manifest == null) {
+            // throw new BundleException("manifest not found in " + bundleLocation);
+            return null;
+        }
+        return addBundle(manifest, bundleLocation, override);
+    }
+
+    public BundleDescription addBundle(File manifestLocation, File bundleLocation, boolean override)
+        throws BundleException {
+        if (bundleLocation == null || !bundleLocation.exists())
+            throw new IllegalArgumentException("bundleLocation not found: " + bundleLocation);
+        Dictionary manifest = loadManifestAttributes(manifestLocation);
+        if (manifest == null)
+            throw new IllegalArgumentException("manifest not found in " + manifestLocation);
+        return addBundle(manifest, bundleLocation, override);
+    }
+
+    private Dictionary loadManifestAttributes(File bundleLocation) {
+        Manifest m = loadManifest(bundleLocation);
+        if (m == null) {
+            return null;
+        }
+
+        return manifestToProperties(m.getMainAttributes());
+    }
+
+    public Manifest loadManifest(File bundleLocation) {
+        try {
+            return BundleUtil.getManifest(bundleLocation);
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
+    private Properties manifestToProperties(Attributes d) {
+        Iterator iter = d.keySet().iterator();
+        Properties result = new Properties();
+        while (iter.hasNext()) {
+            Attributes.Name key = (Attributes.Name)iter.next();
+            result.put(key.toString(), d.get(key));
+        }
+        return result;
+    }
+
+    private BundleDescription addBundle(Dictionary enhancedManifest, File bundleLocation, boolean override)
+        throws BundleException {
+
+        BundleDescription descriptor =
+            factory.createBundleDescription(state, enhancedManifest, bundleLocation.getAbsolutePath(), getNextId());
+
+        setUserProperty(descriptor, PROP_MANIFEST, enhancedManifest);
+        if (override) {
+            BundleDescription[] conflicts = state.getBundles(descriptor.getSymbolicName());
+            if (conflicts != null) {
+                for (BundleDescription conflict : conflicts) {
+                    state.removeBundle(conflict);
+                    logger
+                        .warn(conflict.toString() + " has been replaced by another bundle with the same symbolic name "
+                            + descriptor.toString());
+                }
+            }
+        }
+
+        state.addBundle(descriptor);
+        return descriptor;
+    }
+
+    public BundleDescription getResolvedBundle(String bundleId) {
+        BundleDescription[] description = state.getBundles(bundleId);
+        if (description == null)
+            return null;
+        for (int i = 0; i < description.length; i++) {
+            if (description[i].isResolved())
+                return description[i];
+        }
+        return null;
+    }
+
+    public void resolveState() {
+        state.resolve(false);
+
+        if (logger.isDebugEnabled()) {
+            StringBuilder sb = new StringBuilder("Resolved OSGi state\n");
+            for (BundleDescription bundle : state.getBundles()) {
+                if (!bundle.isResolved()) {
+                    sb.append("NOT ");
+                }
+                sb.append("RESOLVED ");
+                sb.append(bundle.toString()).append(" : ").append(bundle.getLocation());
+                sb.append('\n');
+                for (ResolverError error : state.getResolverErrors(bundle)) {
+                    sb.append('\t').append(error.toString()).append('\n');
+                }
+            }
+            logger.debug(sb.toString());
+        }
+    }
+
+    public State getState() {
+        return state;
+    }
+
+    public BundleDescription[] getBundles() {
+        return state.getBundles();
+    }
+
+    public ResolverError[] getResolverErrors(BundleDescription bundle) {
+        Set<ResolverError> errors = new LinkedHashSet<ResolverError>();
+        getRelevantErrors(errors, bundle);
+        return (ResolverError[])errors.toArray(new ResolverError[errors.size()]);
+    }
+
+    private void getRelevantErrors(Set<ResolverError> errors, BundleDescription bundle) {
+        ResolverError[] bundleErrors = state.getResolverErrors(bundle);
+        for (int j = 0; j < bundleErrors.length; j++) {
+            ResolverError error = bundleErrors[j];
+            errors.add(error);
+
+            VersionConstraint constraint = error.getUnsatisfiedConstraint();
+            if (constraint instanceof BundleSpecification || constraint instanceof HostSpecification) {
+                BundleDescription[] requiredBundles = state.getBundles(constraint.getName());
+                for (int i = 0; i < requiredBundles.length; i++) {
+                    getRelevantErrors(errors, requiredBundles[i]);
+                }
+            }
+        }
+    }
+
+    public Set<ResolverError> getAllErrors() {
+        BundleDescription[] bundles = state.getBundles();
+        Set<ResolverError> errors = new LinkedHashSet<ResolverError>();
+        for (int i = 0; i < bundles.length; i++) {
+            BundleDescription bundle = bundles[i];
+            ResolverError[] bundleErrors = state.getResolverErrors(bundle);
+            if (bundleErrors != null) {
+                errors.addAll(Arrays.asList(bundleErrors));
+            }
+        }
+        return errors;
+    }
+
+    public List<BundleDescription> getDependencies(BundleDescription desc) {
+        Set<Long> bundleIds = new LinkedHashSet<Long>();
+        addBundleAndDependencies(desc, bundleIds, true);
+        List<BundleDescription> dependencies = new ArrayList<BundleDescription>();
+        for (long bundleId : bundleIds) {
+            if (desc.getBundleId() != bundleId) {
+                BundleDescription dependency = state.getBundle(bundleId);
+                BundleDescription supplier = dependency.getSupplier().getSupplier();
+                HostSpecification host = supplier.getHost();
+                if (host == null || !desc.equals(host.getSupplier())) {
+                    dependencies.add(dependency);
+                }
+            }
+        }
+        return dependencies;
+    }
+
+    /**
+     * Code below is copy&paste from org.eclipse.pde.internal.core.DependencyManager
+     * which seems to calculate runtime dependencies. In particular, it adds
+     * fragments' dependencies to the host bundle (see TychoTest#testFragment unit test).
+     * This may or may not cause problems...
+     * 
+     * RequiredPluginsClasspathContainer#computePluginEntries has the logic to
+     * calculate compile-time dependencies in IDE.
+     * 
+     * TODO find the code used by PDE/Build  
+     */
+    private static void addBundleAndDependencies(BundleDescription desc, Set<Long> bundleIds, boolean includeOptional) {
+        if (desc != null && bundleIds.add(new Long(desc.getBundleId()))) {
+            BundleSpecification[] required = desc.getRequiredBundles();
+            for (int i = 0; i < required.length; i++) {
+                if (includeOptional || !required[i].isOptional())
+                    addBundleAndDependencies((BundleDescription)required[i].getSupplier(), bundleIds, includeOptional);
+            }
+            ImportPackageSpecification[] importedPkgs = desc.getImportPackages();
+            for (int i = 0; i < importedPkgs.length; i++) {
+                ExportPackageDescription exporter = (ExportPackageDescription)importedPkgs[i].getSupplier();
+                // Continue if the Imported Package is unresolved of the package is optional and don't want optional packages
+                if (exporter == null || (!includeOptional && Constants.RESOLUTION_OPTIONAL.equals(importedPkgs[i]
+                    .getDirective(Constants.RESOLUTION_DIRECTIVE))))
+                    continue;
+                addBundleAndDependencies(exporter.getExporter(), bundleIds, includeOptional);
+            }
+            BundleDescription[] fragments = desc.getFragments();
+            for (int i = 0; i < fragments.length; i++) {
+                if (!fragments[i].isResolved())
+                    continue;
+                String id = fragments[i].getSymbolicName();
+                if (!"org.eclipse.ui.workbench.compatibility".equals(id)) //$NON-NLS-1$
+                    addBundleAndDependencies(fragments[i], bundleIds, includeOptional);
+            }
+            HostSpecification host = desc.getHost();
+            if (host != null)
+                addBundleAndDependencies((BundleDescription)host.getSupplier(), bundleIds, includeOptional);
+        }
+    }
+
+    public BundleDescription getBundleDescription(MavenProject project) {
+        String location = project.getFile().getParentFile().getAbsolutePath();
+        return state.getBundleByLocation(location);
+    }
+
+    public BundleDescription getBundleDescription(File location) {
+        String absolutePath = location.getAbsolutePath();
+        return state.getBundleByLocation(absolutePath);
+    }
+
+    private static void setUserProperty(BundleDescription desc, String name, Object value) {
+        Object userObject = desc.getUserObject();
+
+        if (userObject != null && !(userObject instanceof Map)) {
+            throw new IllegalStateException("Unexpected user object " + desc.toString());
+        }
+
+        Map props = (Map)userObject;
+        if (props == null) {
+            props = new HashMap();
+            desc.setUserObject(props);
+        }
+
+        props.put(name, value);
+    }
+
+    private static Object getUserProperty(BundleDescription desc, String name) {
+        Object userObject = desc.getUserObject();
+        if (userObject instanceof Map) {
+            return ((Map)userObject).get(name);
+        }
+        return null;
+    }
+
+    public MavenProject getMavenProject(BundleDescription desc) {
+        return (MavenProject)getUserProperty(desc, PROP_MAVEN_PROJECT);
+    }
+
+    public void assertResolved(BundleDescription desc) throws BundleException {
+        if (!desc.isResolved()) {
+            StringBuffer msg = new StringBuffer();
+            msg.append("Bundle ").append(desc.getSymbolicName()).append(" cannot be resolved\n");
+            msg.append("Resolution errors:\n");
+            ResolverError[] errors = getResolverErrors(desc);
+            for (int i = 0; i < errors.length; i++) {
+                ResolverError error = errors[i];
+                msg.append(error).append("\n");
+            }
+
+            throw new BundleException(msg.toString());
+        }
+    }
+
+    public String getManifestAttribute(BundleDescription desc, String attr) {
+        Dictionary mf = (Dictionary)getUserProperty(desc, PROP_MANIFEST);
+        if (mf != null) {
+            return (String)mf.get(attr);
+        }
+        return null;
+    }
+
+    private static File toFile(URL url) {
+        if (url.getProtocol().equals("file") == false) {
+            return null;
+        } else {
+            String filename = url.getFile().replace('/', File.separatorChar).replace("%20", " ");
+            return new File(filename);
+        }
+    }
+
+    /*
+    public static void main(String[] args) throws Exception {
+        BundleResolver resolver = new BundleResolver(new ConsoleLogger(Logger.LEVEL_INFO, "tuscany"));
+
+        String home = System.getProperty("user.home");
+        File jar =
+            new File(new File(home),
+                     ".m2/repository/org/apache/tuscany/sca/tuscany-sca-api/1.4-SNAPSHOT/tuscany-sca-api-1.4-SNAPSHOT.jar");
+        BundleDescription bundle = resolver.addBundle(jar);
+        resolver.resolveState();
+        resolver.assertResolved(bundle);
+    }
+    */
+}

Propchange: tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java
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    svn:eol-style = native

Propchange: tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleResolver.java
------------------------------------------------------------------------------
    svn:keywords = Rev Date

Added: tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleUtil.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleUtil.java?rev=712253&view=auto
==============================================================================
--- tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleUtil.java (added)
+++ tuscany/branches/sca-equinox/tools/maven/maven-eclipse-compiler/src/main/java/org/apache/tuscany/sca/tools/maven/compiler/osgi/BundleUtil.java Fri Nov  7 12:20:02 2008
@@ -0,0 +1,584 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.    
+ */
+
+package org.apache.tuscany.sca.tools.maven.compiler.osgi;
+
+import static org.osgi.framework.Constants.BUNDLE_CLASSPATH;
+import static org.osgi.framework.Constants.BUNDLE_MANIFESTVERSION;
+import static org.osgi.framework.Constants.BUNDLE_NAME;
+import static org.osgi.framework.Constants.BUNDLE_SYMBOLICNAME;
+import static org.osgi.framework.Constants.BUNDLE_VERSION;
+import static org.osgi.framework.Constants.DYNAMICIMPORT_PACKAGE;
+import static org.osgi.framework.Constants.EXPORT_PACKAGE;
+import static org.osgi.framework.Constants.IMPORT_PACKAGE;
+
+import java.io.BufferedInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.HashSet;
+import java.util.Properties;
+import java.util.Set;
+import java.util.StringTokenizer;
+import java.util.jar.Attributes;
+import java.util.jar.JarFile;
+import java.util.jar.Manifest;
+import java.util.zip.ZipEntry;
+import java.util.zip.ZipInputStream;
+
+import org.apache.maven.artifact.versioning.ArtifactVersion;
+import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
+import org.eclipse.osgi.framework.internal.core.Constants;
+import org.eclipse.osgi.framework.internal.core.FrameworkProperties;
+import org.eclipse.osgi.util.ManifestElement;
+import org.osgi.framework.Version;
+
+/**
+ * Common functions used by the plugin.
+ *
+ * @version $Rev$ $Date$
+ */
+final class BundleUtil {
+
+    /**
+     * Returns the name of a bundle, or null if the given file is not a bundle.
+     *  
+     * @param file
+     * @return
+     * @throws IOException
+     */
+    static String getBundleSymbolicName(File file) throws IOException {
+        if (!file.exists()) {
+            return null;
+        }
+        String bundleName = null;
+        if (file.isDirectory()) {
+            File mf = new File(file, JarFile.MANIFEST_NAME);
+            if (mf.isFile()) {
+                Manifest manifest = new Manifest(new FileInputStream(mf));
+                bundleName = manifest.getMainAttributes().getValue(BUNDLE_SYMBOLICNAME);
+            }
+        } else {
+            JarFile jar = new JarFile(file, false);
+            Manifest manifest = jar.getManifest();
+            bundleName = manifest.getMainAttributes().getValue(BUNDLE_SYMBOLICNAME);
+            jar.close();
+        }
+        if (bundleName == null) {
+            return bundleName;
+        }
+        int sc = bundleName.indexOf(';');
+        if (sc != -1) {
+            bundleName = bundleName.substring(0, sc);
+        }
+        return bundleName;
+    }
+
+    static Manifest getManifest(File file) throws IOException {
+        if (!file.exists()) {
+            return null;
+        }
+        Manifest manifest = null;
+        String bundleName = null;
+        if (file.isDirectory()) {
+            File mf = new File(file, JarFile.MANIFEST_NAME);
+            if (!mf.isFile()) {
+                mf = new File(file, "../../" + JarFile.MANIFEST_NAME);
+            }
+            if (mf.isFile()) {
+                manifest = new Manifest(new FileInputStream(mf));
+                bundleName = manifest.getMainAttributes().getValue(BUNDLE_SYMBOLICNAME);
+            }
+        } else {
+            JarFile jar = new JarFile(file, false);
+            manifest = jar.getManifest();
+            bundleName = manifest.getMainAttributes().getValue(BUNDLE_SYMBOLICNAME);
+            jar.close();
+        }
+        if (bundleName != null) {
+            return manifest;
+        }
+
+        if (file.isFile()) {
+            Set<File> jars = new HashSet<File>();
+            jars.add(file);
+            String name = file.getName().substring(0, file.getName().lastIndexOf(".jar"));
+            manifest = libraryManifest(jars, name, name, "0.0.0", null);
+        }
+        return manifest;
+    }
+
+    /**
+     * Generate a Bundle manifest for a set of JAR files.
+     * 
+     * @param jarFiles
+     * @param name
+     * @param symbolicName
+     * @param version
+     * @param dir 
+     * @return
+     * @throws IllegalStateException
+     */
+    static Manifest libraryManifest(Set<File> jarFiles, String name, String symbolicName, String version, String dir)
+        throws IllegalStateException {
+        try {
+
+            // List exported packages and bundle classpath entries
+            StringBuffer classpath = new StringBuffer();
+            Set<String> exportedPackages = new HashSet<String>();
+            for (File jarFile : jarFiles) {
+                addPackages(jarFile, exportedPackages, version);
+                if (dir != null) {
+                    classpath.append(dir).append("/");
+                    classpath.append(jarFile.getName());
+                } else {
+                    classpath.append("\"external:");
+                    classpath.append(jarFile.getPath().replace(File.separatorChar, '/'));
+                    classpath.append("\"");
+                }
+                classpath.append(",");
+            }
+
+            // Generate export-package and import-package declarations
+            StringBuffer exports = new StringBuffer();
+            StringBuffer imports = new StringBuffer();
+            Set<String> importedPackages = new HashSet<String>();
+            for (String export : exportedPackages) {
+
+                // Add export declaration
+                exports.append(export);
+                exports.append(',');
+
+                // Add corresponding import declaration
+                String packageName = packageName(export);
+                if (!importedPackages.contains(packageName)) {
+                    importedPackages.add(packageName);
+                    imports.append(packageName);
+                    imports.append(',');
+                }
+            }
+
+            // Create a manifest
+            Manifest manifest = new Manifest();
+            Attributes attributes = manifest.getMainAttributes();
+            attributes.putValue("Manifest-Version", "1.0");
+            attributes.putValue(BUNDLE_MANIFESTVERSION, "2");
+            attributes.putValue(BUNDLE_SYMBOLICNAME, symbolicName);
+            attributes.putValue(BUNDLE_NAME, name);
+            attributes.putValue(BUNDLE_VERSION, version);
+            attributes.putValue(DYNAMICIMPORT_PACKAGE, "*");
+            if (exports.length() > 1) {
+                attributes.putValue(EXPORT_PACKAGE, exports.substring(0, exports.length() - 1));
+            }
+            if (imports.length() > 1) {
+                attributes.putValue(IMPORT_PACKAGE, imports.substring(0, imports.length() - 1));
+            }
+            if (classpath.length() > 1) {
+                attributes.putValue(BUNDLE_CLASSPATH, classpath.substring(0, classpath.length() - 1));
+            }
+
+            return manifest;
+        } catch (IOException e) {
+            throw new IllegalStateException(e);
+        }
+    }
+
+    /**
+     * Write a bundle manifest.
+     * 
+     * @param manifest
+     * @param out
+     * @throws IOException
+     */
+    static void write(Manifest manifest, OutputStream out) throws IOException {
+        DataOutputStream dos = new DataOutputStream(out);
+        Attributes attributes = manifest.getMainAttributes();
+        write(attributes, "Manifest-Version", dos);
+        write(attributes, BUNDLE_MANIFESTVERSION, dos);
+        write(attributes, BUNDLE_SYMBOLICNAME, dos);
+        write(attributes, BUNDLE_NAME, dos);
+        write(attributes, BUNDLE_VERSION, dos);
+        write(attributes, DYNAMICIMPORT_PACKAGE, dos);
+        write(attributes, BUNDLE_CLASSPATH, dos);
+        write(attributes, IMPORT_PACKAGE, dos);
+        write(attributes, EXPORT_PACKAGE, dos);
+        dos.flush();
+    }
+
+    /**
+     * Add packages to be exported out of a JAR file.
+     * 
+     * @param jarFile
+     * @param packages
+     * @throws IOException
+     */
+    private static void addPackages(File jarFile, Set<String> packages, String version) throws IOException {
+        if (getBundleSymbolicName(jarFile) == null) {
+            String ver = ";version=" + version;
+            addAllPackages(jarFile, packages, ver);
+        } else {
+            addExportedPackages(jarFile, packages);
+        }
+    }
+
+    /**
+     * Write manifest attributes.
+     * 
+     * @param attributes
+     * @param key
+     * @param dos
+     * @throws IOException
+     */
+    private static void write(Attributes attributes, String key, DataOutputStream dos) throws IOException {
+        String value = attributes.getValue(key);
+        if (value == null) {
+            return;
+        }
+        StringBuffer line = new StringBuffer();
+        line.append(key);
+        line.append(": ");
+        line.append(new String(value.getBytes("UTF8")));
+        line.append("\r\n");
+        int l = line.length();
+        if (l > 72) {
+            for (int i = 70; i < l - 2;) {
+                line.insert(i, "\r\n ");
+                i += 72;
+                l += 3;
+            }
+        }
+        dos.writeBytes(line.toString());
+    }
+
+    /**
+     * Strip an OSGi export, only retain the package name and version.
+     * 
+     * @param export
+     * @return
+     */
+    private static String stripExport(String export) {
+        int sc = export.indexOf(';');
+        if (sc == -1) {
+            return export;
+        }
+        String base = export.substring(0, sc);
+        int v = export.indexOf("version=");
+        if (v != -1) {
+            sc = export.indexOf(';', v + 1);
+            if (sc != -1) {
+                return base + ";" + export.substring(v, sc);
+            } else {
+                return base + ";" + export.substring(v);
+            }
+        } else {
+            return base;
+        }
+    }
+
+    /**
+     * Add all the packages out of a JAR.
+     * 
+     * @param jarFile
+     * @param packages
+     * @param version
+     * @throws IOException
+     */
+    private static void addAllPackages(File jarFile, Set<String> packages, String version) throws IOException {
+        ZipInputStream is = new ZipInputStream(new FileInputStream(jarFile));
+        ZipEntry entry;
+        while ((entry = is.getNextEntry()) != null) {
+            String entryName = entry.getName();
+            if (!entry.isDirectory() && entryName != null
+                && entryName.length() > 0
+                && !entryName.startsWith(".")
+                && entryName.endsWith(".class") // Exclude resources from Export-Package
+                && entryName.lastIndexOf("/") > 0
+                && Character.isJavaIdentifierStart(entryName.charAt(0))) {
+                String pkg = entryName.substring(0, entryName.lastIndexOf("/")).replace('/', '.');
+                if (!pkg.endsWith(".enum")) {
+                    packages.add(pkg + version);
+                }
+            }
+        }
+        is.close();
+    }
+
+    /**
+     * Returns the name of the exported package in the given export.
+     * @param export
+     * @return
+     */
+    private static String packageName(String export) {
+        int sc = export.indexOf(';');
+        if (sc != -1) {
+            export = export.substring(0, sc);
+        }
+        return export;
+    }
+
+    /**
+     * Add the packages exported by a bundle.
+     *  
+     * @param file
+     * @param packages
+     * @return
+     * @throws IOException
+     */
+    private static void addExportedPackages(File file, Set<String> packages) throws IOException {
+        if (!file.exists()) {
+            return;
+        }
+
+        // Read the export-package declaration and get a list of the packages available in a JAR
+        Set<String> existingPackages = null;
+        String exports = null;
+        if (file.isDirectory()) {
+            File mf = new File(file, "META-INF/MANIFEST.MF");
+            if (mf.isFile()) {
+                Manifest manifest = new Manifest(new FileInputStream(mf));
+                exports = manifest.getMainAttributes().getValue(EXPORT_PACKAGE);
+            }
+        } else {
+            JarFile jar = new JarFile(file, false);
+            Manifest manifest = jar.getManifest();
+            exports = manifest.getMainAttributes().getValue(EXPORT_PACKAGE);
+            jar.close();
+            existingPackages = new HashSet<String>();
+            addAllPackages(file, existingPackages, "");
+        }
+        if (exports == null) {
+            return;
+        }
+
+        // Parse the export-package declaration, and extract the individual packages
+        StringBuffer buffer = new StringBuffer();
+        boolean q = false;
+        for (int i = 0, n = exports.length(); i < n; i++) {
+            char c = exports.charAt(i);
+            if (c == '\"') {
+                q = !q;
+            }
+            if (!q) {
+                if (c == ',') {
+
+                    // Add the exported package to the set, after making sure it really exists in
+                    // the JAR
+                    String export = buffer.toString();
+                    if (existingPackages == null || existingPackages.contains(packageName(export))) {
+                        packages.add(stripExport(export));
+                    }
+                    buffer = new StringBuffer();
+                    continue;
+                }
+            }
+            buffer.append(c);
+        }
+        if (buffer.length() != 0) {
+
+            // Add the exported package to the set, after making sure it really exists in
+            // the JAR
+            String export = buffer.toString();
+            if (existingPackages == null || existingPackages.contains(packageName(export))) {
+                packages.add(stripExport(export));
+            }
+        }
+    }
+
+    /**
+     * Convert the maven version into OSGi version 
+     * @param mavenVersion
+     * @return
+     */
+    static String osgiVersion(String mavenVersion) {
+        ArtifactVersion ver = new DefaultArtifactVersion(mavenVersion);
+        String qualifer = ver.getQualifier();
+        if (qualifer != null) {
+            StringBuffer buf = new StringBuffer(qualifer);
+            for (int i = 0; i < buf.length(); i++) {
+                char c = buf.charAt(i);
+                if (Character.isLetterOrDigit(c) || c == '-' || c == '_') {
+                    // Keep as-is
+                } else {
+                    buf.setCharAt(i, '_');
+                }
+            }
+            qualifer = buf.toString();
+        }
+        Version osgiVersion =
+            new Version(ver.getMajorVersion(), ver.getMinorVersion(), ver.getIncrementalVersion(), qualifer);
+        String version = osgiVersion.toString();
+        return version;
+    }
+    
+    private static String J2SE = "J2SE-"; 
+    private static String JAVASE = "JavaSE-"; 
+    private static String PROFILE_EXT = ".profile"; 
+
+    public static void loadVMProfile(Properties properties) {
+        Properties profileProps = findVMProfile(properties);
+        String systemExports = properties.getProperty(Constants.OSGI_FRAMEWORK_SYSTEM_PACKAGES);
+        // set the system exports property using the vm profile; only if the property is not already set
+        if (systemExports == null) {
+            systemExports = profileProps.getProperty(Constants.OSGI_FRAMEWORK_SYSTEM_PACKAGES);
+            if (systemExports != null)
+                properties.put(Constants.OSGI_FRAMEWORK_SYSTEM_PACKAGES, systemExports);
+        }
+        // set the org.osgi.framework.bootdelegation property according to the java profile
+        String type = properties.getProperty(Constants.OSGI_JAVA_PROFILE_BOOTDELEGATION); // a null value means ignore
+        String profileBootDelegation = profileProps.getProperty(Constants.OSGI_BOOTDELEGATION);
+        if (Constants.OSGI_BOOTDELEGATION_OVERRIDE.equals(type)) {
+            if (profileBootDelegation == null)
+                properties.remove(Constants.OSGI_BOOTDELEGATION); // override with a null value
+            else
+                properties.put(Constants.OSGI_BOOTDELEGATION, profileBootDelegation); // override with the profile value
+        } else if (Constants.OSGI_BOOTDELEGATION_NONE.equals(type))
+            properties.remove(Constants.OSGI_BOOTDELEGATION); // remove the bootdelegation property in case it was set
+        // set the org.osgi.framework.executionenvironment property according to the java profile
+        if (properties.getProperty(Constants.FRAMEWORK_EXECUTIONENVIRONMENT) == null) {
+            // get the ee from the java profile; if no ee is defined then try the java profile name
+            String ee =
+                profileProps.getProperty(Constants.FRAMEWORK_EXECUTIONENVIRONMENT, profileProps
+                    .getProperty(Constants.OSGI_JAVA_PROFILE_NAME));
+            if (ee != null)
+                properties.put(Constants.FRAMEWORK_EXECUTIONENVIRONMENT, ee);
+        }
+    }
+
+    private static Properties findVMProfile(Properties properties) {
+        Properties result = new Properties();
+        // Find the VM profile name using J2ME properties
+        String j2meConfig = properties.getProperty(Constants.J2ME_MICROEDITION_CONFIGURATION);
+        String j2meProfiles = properties.getProperty(Constants.J2ME_MICROEDITION_PROFILES);
+        String vmProfile = null;
+        String javaEdition = null;
+        Version javaVersion = null;
+        if (j2meConfig != null && j2meConfig.length() > 0 && j2meProfiles != null && j2meProfiles.length() > 0) {
+            // save the vmProfile based off of the config and profile
+            // use the last profile; assuming that is the highest one
+            String[] j2meProfileList = ManifestElement.getArrayFromList(j2meProfiles, " "); 
+            if (j2meProfileList != null && j2meProfileList.length > 0)
+                vmProfile = j2meConfig + '_' + j2meProfileList[j2meProfileList.length - 1];
+        } else {
+            // No J2ME properties; use J2SE properties
+            // Note that the CDC spec appears not to require VM implementations to set the
+            // javax.microedition properties!!  So we will try to fall back to the 
+            // java.specification.name property, but this is pretty ridiculous!!
+            String javaSpecVersion = properties.getProperty("java.specification.version"); 
+            // set the profile and EE based off of the java.specification.version
+            // TODO We assume J2ME Foundation and J2SE here.  need to support other profiles J2EE ...
+            if (javaSpecVersion != null) {
+                StringTokenizer st = new StringTokenizer(javaSpecVersion, " _-"); 
+                javaSpecVersion = st.nextToken();
+                String javaSpecName = properties.getProperty("java.specification.name"); 
+                if ("J2ME Foundation Specification".equals(javaSpecName)) 
+                    vmProfile = "CDC-" + javaSpecVersion + "_Foundation-" + javaSpecVersion;  //$NON-NLS-2$
+                else {
+                    // look for JavaSE if 1.6 or greater; otherwise look for J2SE
+                    Version v16 = new Version("1.6"); 
+                    javaEdition = J2SE;
+                    try {
+                        javaVersion = new Version(javaSpecVersion);
+                        if (v16.compareTo(javaVersion) <= 0)
+                            javaEdition = JAVASE;
+                    } catch (IllegalArgumentException e) {
+                        // do nothing
+                    }
+                    vmProfile = javaEdition + javaSpecVersion;
+                }
+            }
+        }
+        URL url = null;
+        // check for the java profile property for a url
+        String propJavaProfile = FrameworkProperties.getProperty(Constants.OSGI_JAVA_PROFILE);
+        if (propJavaProfile != null)
+            try {
+                // we assume a URL
+                url = new URL(propJavaProfile);
+            } catch (MalformedURLException e1) {
+                // try using a relative path in the system bundle
+                url = findInSystemBundle(propJavaProfile);
+            }
+        if (url == null && vmProfile != null) {
+            // look for a profile in the system bundle based on the vm profile
+            String javaProfile = vmProfile + PROFILE_EXT;
+            url = findInSystemBundle(javaProfile);
+            if (url == null)
+                url = getNextBestProfile(javaEdition, javaVersion);
+        }
+        if (url == null)
+            // the profile url is still null then use the osgi min profile in OSGi by default
+            url = findInSystemBundle("OSGi_Minimum-1.1.profile"); 
+        if (url != null) {
+            InputStream in = null;
+            try {
+                in = url.openStream();
+                result.load(new BufferedInputStream(in));
+            } catch (IOException e) {
+                // TODO consider logging ...
+            } finally {
+                if (in != null)
+                    try {
+                        in.close();
+                    } catch (IOException ee) {
+                        // do nothing
+                    }
+            }
+        }
+        // set the profile name if it does not provide one
+        if (result.getProperty(Constants.OSGI_JAVA_PROFILE_NAME) == null)
+            if (vmProfile != null)
+                result.put(Constants.OSGI_JAVA_PROFILE_NAME, vmProfile.replace('_', '/'));
+            else
+                // last resort; default to the absolute minimum profile name for the framework
+                result.put(Constants.OSGI_JAVA_PROFILE_NAME, "OSGi/Minimum-1.1"); 
+        return result;
+    }
+
+    private static URL getNextBestProfile(String javaEdition, Version javaVersion) {
+        if (javaVersion == null || (javaEdition != J2SE && javaEdition != JAVASE))
+            return null; // we cannot automatically choose the next best profile unless this is a J2SE or JavaSE vm
+        URL bestProfile = findNextBestProfile(javaEdition, javaVersion);
+        if (bestProfile == null && javaEdition == JAVASE)
+            // if this is a JavaSE VM then search for a lower J2SE profile
+            bestProfile = findNextBestProfile(J2SE, javaVersion);
+        return bestProfile;
+    }
+
+    private static URL findNextBestProfile(String javaEdition, Version javaVersion) {
+        URL result = null;
+        int minor = javaVersion.getMinor();
+        do {
+            result = findInSystemBundle(javaEdition + javaVersion.getMajor() + "." + minor + PROFILE_EXT); 
+            minor = minor - 1;
+        } while (result == null && minor > 0);
+        return result;
+    }
+
+    private static URL findInSystemBundle(String entry) {
+        ClassLoader loader = BundleUtil.class.getClassLoader();
+        return loader == null ? ClassLoader.getSystemResource(entry) : loader.getResource(entry);
+    }
+
+
+}

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