Bug 5528 - Connecting RESTful part to restconf + fix bugs

[netconf.git] / restconf / sal-rest-connector / src / main / java / org / opendaylight / restconf / restful / services / impl / RestconfStreamsSubscriptionServiceImpl.java

diff --git a/restconf/sal-rest-connector/src/main/java/org/opendaylight/restconf/restful/services/impl/RestconfStreamsSubscriptionServiceImpl.java b/restconf/sal-rest-connector/src/main/java/org/opendaylight/restconf/restful/services/impl/RestconfStreamsSubscriptionServiceImpl.java
index 9561ecf84339dd8f0c1119b3c340ae837d6ff850..fa77603e694c163140e2bd7b62ed0326f06f7ca8 100644 (file)
--- a/restconf/sal-rest-connector/src/main/java/org/opendaylight/restconf/restful/services/impl/RestconfStreamsSubscriptionServiceImpl.java
+++ b/restconf/sal-rest-connector/src/main/java/org/opendaylight/restconf/restful/services/impl/RestconfStreamsSubscriptionServiceImpl.java
@@ -7,15 +7,77 @@
  */
 package org.opendaylight.restconf.restful.services.impl;
 
+import com.google.common.base.Strings;
+import java.net.URI;
+import java.util.Map;
 import javax.ws.rs.core.Response;
+import javax.ws.rs.core.Response.Status;
+import javax.ws.rs.core.UriBuilder;
 import javax.ws.rs.core.UriInfo;
+import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
+import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
+import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
+import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
+import org.opendaylight.netconf.sal.streams.listeners.Notificator;
+import org.opendaylight.restconf.handlers.DOMDataBrokerHandler;
 import org.opendaylight.restconf.restful.services.api.RestconfStreamsSubscriptionService;
+import org.opendaylight.restconf.restful.utils.RestconfStreamsConstants;
+import org.opendaylight.restconf.restful.utils.SubscribeToStreamUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
+/**
+ * Implementation of {@link RestconfStreamsSubscriptionService}
+ *
+ */
 public class RestconfStreamsSubscriptionServiceImpl implements RestconfStreamsSubscriptionService {
 
+    private static final Logger LOG = LoggerFactory.getLogger(RestconfStreamsSubscriptionServiceImpl.class);
+
+    private final DOMDataBrokerHandler domDataBrokerHandler;
+
+    public RestconfStreamsSubscriptionServiceImpl(final DOMDataBrokerHandler domDataBrokerHandler) {
+        this.domDataBrokerHandler = domDataBrokerHandler;
+    }
+
     @Override
     public Response subscribeToStream(final String identifier, final UriInfo uriInfo) {
-        throw new UnsupportedOperationException("Not yet implemented");
-    }
+        final Map<String, String> mapOfValues = SubscribeToStreamUtil.mapValuesFromUri(identifier);
 
+        final LogicalDatastoreType ds = SubscribeToStreamUtil.parseURIEnum(LogicalDatastoreType.class,
+                mapOfValues.get(RestconfStreamsConstants.DATASTORE_PARAM_NAME));
+        if (ds == null) {
+            final String msg = "Stream name doesn't contains datastore value (pattern /datastore=)";
+            LOG.debug(msg);
+            throw new RestconfDocumentedException(msg, ErrorType.APPLICATION, ErrorTag.MISSING_ATTRIBUTE);
+        }
+
+        final DataChangeScope scope = SubscribeToStreamUtil.parseURIEnum(DataChangeScope.class,
+                mapOfValues.get(RestconfStreamsConstants.SCOPE_PARAM_NAME));
+        if (scope == null) {
+            final String msg = "Stream name doesn't contains datastore value (pattern /scope=)";
+            LOG.warn(msg);
+            throw new RestconfDocumentedException(msg, ErrorType.APPLICATION, ErrorTag.MISSING_ATTRIBUTE);
+        }
+
+        final String streamName = Notificator.createStreamNameFromUri(identifier);
+        if (Strings.isNullOrEmpty(streamName)) {
+            final String msg = "Stream name is empty.";
+            LOG.warn(msg);
+            throw new RestconfDocumentedException(msg, ErrorType.PROTOCOL, ErrorTag.INVALID_VALUE);
+        }
+
+        final ListenerAdapter listener = Notificator.getListenerFor(streamName);
+        SubscribeToStreamUtil.registration(ds, scope, listener, this.domDataBrokerHandler.get());
+
+        final int port = SubscribeToStreamUtil.prepareNotificationPort();
+
+        final UriBuilder uriBuilder = uriInfo.getAbsolutePathBuilder();
+        final UriBuilder uriToWebSocketServer = uriBuilder.port(port).scheme(RestconfStreamsConstants.SCHEMA_SUBSCIBRE_URI);
+        final URI uri = uriToWebSocketServer.replacePath(streamName).build();
+
+        return Response.status(Status.OK).location(uri).build();
+    }
 }