X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms%2Fsrc%2Forg%2Fargeo%2Fcms%2Fosgi%2FCmsOsgiUtils.java;fp=org.argeo.cms%2Fsrc%2Forg%2Fargeo%2Fcms%2Fosgi%2FCmsOsgiUtils.java;h=424d62f68f01319f5d4822fdaa96cae5d0aeb33d;hb=b7683883512d924a039a43c2e1102290aa49f64d;hp=0000000000000000000000000000000000000000;hpb=03f646fd0d7e7ce393694c836c779bc67a4eef55;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms/src/org/argeo/cms/osgi/CmsOsgiUtils.java b/org.argeo.cms/src/org/argeo/cms/osgi/CmsOsgiUtils.java
new file mode 100644
index 000000000..424d62f68
--- /dev/null
+++ b/org.argeo.cms/src/org/argeo/cms/osgi/CmsOsgiUtils.java
@@ -0,0 +1,40 @@
+package org.argeo.cms.osgi;
+
+import java.util.Collection;
+
+import javax.security.auth.Subject;
+
+import org.argeo.api.cms.CmsSession;
+import org.argeo.api.cms.CmsSessionId;
+import org.osgi.framework.BundleContext;
+import org.osgi.framework.InvalidSyntaxException;
+import org.osgi.framework.ServiceReference;
+
+public class CmsOsgiUtils {
+
+	/** @return The {@link CmsSession} for this {@link Subject} or null. */
+	public static CmsSession getCmsSession(BundleContext bc, Subject subject) {
+		if (subject.getPrivateCredentials(CmsSessionId.class).isEmpty())
+			return null;
+		CmsSessionId cmsSessionId = subject.getPrivateCredentials(CmsSessionId.class).iterator().next();
+		String uuid = cmsSessionId.getUuid().toString();
+		Collection<ServiceReference<CmsSession>> sr;
+		try {
+			sr = bc.getServiceReferences(CmsSession.class, "(" + CmsSession.SESSION_UUID + "=" + uuid + ")");
+		} catch (InvalidSyntaxException e) {
+			throw new IllegalArgumentException("Cannot get CMS session for uuid " + uuid, e);
+		}
+		ServiceReference<CmsSession> cmsSessionRef;
+		if (sr.size() == 1) {
+			cmsSessionRef = sr.iterator().next();
+			return bc.getService(cmsSessionRef);
+		} else if (sr.size() == 0) {
+			return null;
+		} else
+			throw new IllegalStateException(sr.size() + " CMS sessions registered for " + uuid);
+	}
+
+	/** Singleton.*/
+	private CmsOsgiUtils() {
+	}
+}