Github user aledsage commented on a diff in the pull request:
https://github.com/apache/incubator-brooklyn/pull/31#discussion_r14379322
--- Diff: core/src/main/java/brooklyn/util/osgi/Osgis.java ---
@@ -0,0 +1,151 @@
+package brooklyn.util.osgi;
+
+import java.io.BufferedReader;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.URL;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.felix.framework.FrameworkFactory;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.BundleException;
+import org.osgi.framework.Constants;
+import org.osgi.framework.Version;
+import org.osgi.framework.launch.Framework;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import brooklyn.util.ResourceUtils;
+import brooklyn.util.collections.MutableList;
+import brooklyn.util.collections.MutableMap;
+import brooklyn.util.exceptions.Exceptions;
+import brooklyn.util.guava.Maybe;
+
+import com.google.common.annotations.Beta;
+import com.google.common.base.Joiner;
+import com.google.common.base.Predicate;
+import com.google.common.base.Predicates;
+
+/**
+ * utilities for working with osgi.
+ * osgi support is in early days (June 2014) so this class is beta,
subject to change,
+ * particularly in how framework is started and bundles installed.
+ *
+ * @since 0.7.0 */
+@Beta
+public class Osgis {
+
+ private static final Logger LOG = LoggerFactory.getLogger(Osgis.class);
+
+ public static List<Bundle> getBundlesByName(Framework framework,
String symbolicName, Predicate<Version> versionMatcher) {
+ List<Bundle> result = MutableList.of();
+ for (Bundle b: framework.getBundleContext().getBundles()) {
+ if (symbolicName.equals(b.getSymbolicName()) &&
versionMatcher.apply(b.getVersion())) {
+ result.add(b);
+ }
+ }
+ return result;
+ }
+
+ public static List<Bundle> getBundlesByName(Framework framework,
String symbolicName) {
+ return getBundlesByName(framework, symbolicName,
Predicates.<Version>alwaysTrue());
+ }
+
+ /**
+ * Tries to find a bundle in the given framework with name matching
either `name' or `name:version'.
+ */
+ public static Maybe<Bundle> getBundle(Framework framework, String
symbolicNameOptionallyWithVersion) {
+ String[] parts = symbolicNameOptionallyWithVersion.split(":");
+ Maybe<Bundle> result = Maybe.absent("No bundles matching
"+symbolicNameOptionallyWithVersion);
+ if (parts.length == 2) {
+ result = getBundle(framework, parts[0], parts[1]);
+ } else if (parts.length == 1) {
+ List<Bundle> matches = getBundlesByName(framework,
symbolicNameOptionallyWithVersion);
+ if (!matches.isEmpty()) {
+ result = Maybe.of(matches.iterator().next());
--- End diff --
Perhaps add a TODO about getting the latest stable version, rather than
just first in list?
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