1 files changed, 200 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M4-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java b/tags/java/sca/2.0-M4-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java
new file mode 100644
index 0000000000..91f2bba5c5
--- /dev/null
+++ b/tags/java/sca/2.0-M4-RC1/modules/contribution-osgi/src/main/java/org/apache/tuscany/sca/contribution/osgi/impl/OSGiBundleContributionScanner.java
@@ -0,0 +1,200 @@
+/*
+ * 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.contribution.osgi.impl;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.jar.JarEntry;
+import java.util.jar.JarInputStream;
+
+import org.apache.tuscany.sca.contribution.Contribution;
+import org.apache.tuscany.sca.contribution.PackageType;
+import org.apache.tuscany.sca.contribution.processor.ContributionException;
+import org.apache.tuscany.sca.contribution.processor.ContributionReadException;
+import org.apache.tuscany.sca.contribution.scanner.ContributionScanner;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.Constants;
+
+/**
+ * Bundle Contribution package processor.
+ *
+ * @version $Rev$ $Date$
+ */
+public class OSGiBundleContributionScanner implements ContributionScanner {
+
+    public OSGiBundleContributionScanner() {
+    }
+
+    public String getContributionType() {
+        return PackageType.BUNDLE;
+    }
+
+    public URL getArtifactURL(Contribution contribution, String artifact) throws ContributionReadException {
+        Bundle bundle = null;
+        try {
+            bundle = OSGiBundleActivator.findBundle(contribution.getLocation());
+            if (bundle != null) {
+                URL url = bundle.getResource(artifact);
+                return url;
+            }
+        } catch (Exception e) {
+        }
+        return null;
+    }
+
+    public List<String> getJarArtifacts(URL packageSourceURL, InputStream inputStream) throws ContributionException,
+        IOException {
+        if (packageSourceURL == null) {
+            throw new IllegalArgumentException("Invalid null package source URL.");
+        }
+
+        if (inputStream == null) {
+            throw new IllegalArgumentException("Invalid null source inputstream.");
+        }
+
+        // Assume the root is a jar file
+        JarInputStream jar = new JarInputStream(inputStream);
+        try {
+            Set<String> names = new HashSet<String>();
+            while (true) {
+                JarEntry entry = jar.getNextJarEntry();
+                if (entry == null) {
+                    // EOF
+                    break;
+                }
+
+                // FIXME: Maybe we should externalize the filter as a property
+                String name = entry.getName();
+                if (!name.startsWith(".") && !entry.isDirectory()) {
+
+                    // Trim trailing /
+                    if (name.endsWith("/")) {
+                        name = name.substring(0, name.length() - 1);
+                    }
+
+                    // Add the entry name
+                    if (!names.contains(name) && name.length() > 0) {
+                        names.add(name);
+
+                    }
+                }
+            }
+
+            // Return list of URIs
+            List<String> artifacts = new ArrayList<String>();
+            for (String name : names) {
+                artifacts.add(name);
+            }
+            return artifacts;
+
+        } finally {
+            jar.close();
+        }
+    }
+
+    public List<String> scan(Contribution contribution) throws ContributionReadException {
+        Bundle bundle = OSGiBundleActivator.findBundle(contribution.getLocation());
+
+        if (bundle == null) {
+            throw new IllegalArgumentException("Could not find OSGi bundle " + contribution.getLocation());
+        }
+
+        List<String> artifacts = new ArrayList<String>();
+        Set<String> bundleClassPath = new HashSet<String>();
+        String cp = (String)bundle.getHeaders().get(Constants.BUNDLE_CLASSPATH);
+        if (cp != null) {
+            String[] paths = cp.split(",");
+            for (String path : paths) {
+                bundleClassPath.add(path.trim());
+            }
+        }
+
+        try {
+            // Test if the bundle is an Eclipse project
+            boolean devMode = (bundle.getEntry("/.project") != null);
+            // FIXME: The entries can come from fragments. Do we need to have a way to differentiate the entries?
+            Enumeration<?> entries = bundle.findEntries("/", "*", true);
+            while (entries.hasMoreElements()) {
+                URL entry = (URL)entries.nextElement();
+                String entryName = entry.getPath();
+                if (devMode && entryName.contains("/.svn/")
+                    || entryName.startsWith("/.")
+                    || entryName.startsWith("/target/")
+                    || entryName.startsWith("/src/")) {
+                    // Ignore .svn files
+                    // Ignore .classpath, .project, src, and target
+                    continue;
+                }
+                if (entryName.startsWith("/")) {
+                    entryName = entryName.substring(1);
+                }
+                artifacts.add(entryName);
+
+                if (entryName.endsWith(".jar") && bundleClassPath.contains(entryName)) {
+                    artifacts.addAll(getJarArtifacts(entry, entry.openStream()));
+                }
+
+            }
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        contribution.getExtensions().add(bundle);
+        contribution.getTypes().add(getContributionType());
+        contribution.setClassLoader(new BundleClassLoader(bundle));
+        return artifacts;
+    }
+
+    private static class BundleClassLoader extends ClassLoader {
+        private Bundle bundle;
+        public BundleClassLoader(Bundle bundle) {
+            super(null);
+            this.bundle = bundle;
+        }
+
+        @Override
+        protected Class<?> findClass(String name) throws ClassNotFoundException {
+            return bundle.loadClass(name);
+        }
+
+        @Override
+        protected URL findResource(String name) {
+            return bundle.getResource(name);
+        }
+
+        @Override
+        protected Enumeration<URL> findResources(String name) throws IOException {
+            Enumeration<URL> urls = bundle.getResources(name);
+            if (urls == null) {
+                List<URL> list = Collections.emptyList();
+                return Collections.enumeration(list);
+            } else {
+                return urls;
+            }
+        }
+    }
+
+}