[15349] Add base p2 rest

bundles/es.core.p2/META-INF/MANIFEST.MF

@@ -30,7 +30,7 @@ Service-Component: OSGI-INF/*.xml
 Import-Package: io.swagger.annotations;version="1.5.18",
  javax.servlet;version="3.1.0",
  javax.servlet.http;version="2.4.0",
- javax.ws.rs;version="1.1.1",
- javax.ws.rs.core;version="2.0.1",
+ javax.ws.rs;version="2.0.0",
+ javax.ws.rs.core;version="2.0.0",
  org.osgi.service.component.annotations;version="1.2.0",
  org.slf4j

bundles/es.core.p2/OSGI-INF/info.elexis.server.core.p2.console.ConsoleCommandProvider.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" activate="activate" immediate="true" name="info.elexis.server.core.p2.console.ConsoleCommandProvider">
-   <implementation class="info.elexis.server.core.p2.console.ConsoleCommandProvider"/>
-   <service servicefactory="false">
+   <service>
       <provide interface="org.eclipse.osgi.framework.console.CommandProvider"/>
    </service>
+   <implementation class="info.elexis.server.core.p2.console.ConsoleCommandProvider"/>
 </scr:component>
\ No newline at end of file

bundles/es.core.p2/OSGI-INF/info.elexis.server.core.p2.internal.HTTPService.xml

 <?xml version="1.0" encoding="UTF-8"?>
-<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.0.0" immediate="true" name="info.elexis.server.core.p2.internal.HTTPService">
-    <implementation class="info.elexis.server.core.p2.internal.HTTPService"/>
-    <service servicefactory="false">
-        <provide interface="info.elexis.server.core.p2.internal.HTTPService"/>
-    </service>
-</scr:component>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" immediate="true" name="info.elexis.server.core.p2.internal.HTTPService">
+   <service>
+      <provide interface="info.elexis.server.core.p2.internal.HTTPService"/>
+   </service>
+   <implementation class="info.elexis.server.core.p2.internal.HTTPService"/>
+</scr:component>
\ No newline at end of file

bundles/es.core.p2/OSGI-INF/info.elexis.server.core.p2.internal.Provisioner.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" activate="activate" immediate="true" name="info.elexis.server.core.p2.internal.Provisioner">
-   <implementation class="info.elexis.server.core.p2.internal.Provisioner"/>
    <reference bind="setAgentProvider" cardinality="1..1" interface="org.eclipse.equinox.p2.core.IProvisioningAgentProvider" name="AgentProvider" policy="static" unbind="unsetAgentProvider"/>
+   <implementation class="info.elexis.server.core.p2.internal.Provisioner"/>
 </scr:component>
\ No newline at end of file

bundles/es.core.p2/OSGI-INF/info.elexis.server.core.p2.jaxrs.UpdateResource.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" immediate="true" name="info.elexis.server.core.p2.jaxrs.UpdateResource">
+   <service>
+      <provide interface="info.elexis.server.core.p2.jaxrs.UpdateResource"/>
+   </service>
+   <implementation class="info.elexis.server.core.p2.jaxrs.UpdateResource"/>
+</scr:component>
\ No newline at end of file

bundles/es.core.p2/src/info/elexis/server/core/p2/jaxrs/UpdateResource.java

+package info.elexis.server.core.p2.jaxrs;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.ws.rs.GET;
+import javax.ws.rs.Path;
+import javax.ws.rs.Produces;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+import org.eclipse.equinox.p2.operations.Update;
+import org.osgi.service.component.annotations.Component;
+
+import info.elexis.server.core.p2.internal.ProvisioningHelper;
+import io.swagger.annotations.Api;
+import io.swagger.annotations.ApiOperation;
+
+@Api(tags = { "p2" })
+@Path("/p2")
+@Component(service = UpdateResource.class, immediate = true)
+@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
+public class UpdateResource {
+
+	@GET
+	@Path("updates/check")
+	@ApiOperation(nickname = "checkUpdates", value = "check for available updates")
+	public Response checkUpdates() {
+		List<String> resultList = new ArrayList<>();
+		Update[] possibleUpdates = ProvisioningHelper.getPossibleUpdates();
+		if (possibleUpdates != null) {
+			for (Update update : possibleUpdates) {
+				resultList.add(update.toString());
+			}
+		}
+		return Response.ok(resultList).build();
+	}
+
+}