[ONOS-2589] Generate Bgp uri for Node and Link changes of BGP Controller.
Change-Id: Ibbf3a57dacda31a4047538f5ba070cd5d50cf8cb
diff --git a/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java b/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java
new file mode 100755
index 0000000..9004216
--- /dev/null
+++ b/bgp/api/src/main/java/org/onosproject/bgp/controller/BgpDpid.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed 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.onosproject.bgp.controller;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.onosproject.bgpio.exceptions.BGPParseException;
+import org.onosproject.bgpio.protocol.linkstate.BgpLinkLsNlriVer4;
+import org.onosproject.bgpio.protocol.linkstate.BGPNodeLSNlriVer4;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * The class representing a network bgp device id. This class is immutable.
+ */
+public final class BgpDpid {
+ private static final Logger log = LoggerFactory.getLogger(BgpDpid.class);
+
+ private static final String SCHEME = "bgp";
+ private static final long UNKNOWN = 0;
+ private StringBuilder stringBuilder;
+ public static final int NODE_DESCRIPTOR_LOCAL = 1;
+ public static final int NODE_DESCRIPTOR_REMOTE = 2;
+
+ /**
+ * Initialize bgp id to generate URI.
+ *
+ * @param linkNlri node Nlri.
+ * @param nodeDescriptorType node descriptor type, local/remote
+ */
+ public BgpDpid(final BgpLinkLsNlriVer4 linkNlri, int nodeDescriptorType) {
+ this.stringBuilder = new StringBuilder("bgpls://");
+
+ if (linkNlri.getRouteDistinguisher() != null) {
+ this.stringBuilder.append(Long.toString(linkNlri.getRouteDistinguisher().getRouteDistinguisher()))
+ .append(':');
+ }
+
+ try {
+ this.stringBuilder.append(linkNlri.getProtocolId().toString())
+ .append(':')
+ .append(Long.toString(linkNlri.getIdentifier()))
+ .append('/');
+
+ if (nodeDescriptorType == NODE_DESCRIPTOR_LOCAL) {
+ add(linkNlri.localNodeDescriptors().toString());
+ } else if (nodeDescriptorType == NODE_DESCRIPTOR_REMOTE) {
+ add(linkNlri.remoteNodeDescriptors().toString());
+ }
+ } catch (BGPParseException e) {
+ log.info("Exception BgpId string: " + e.toString());
+ }
+
+ }
+
+ /**
+ * Initialize bgp id to generate URI.
+ *
+ * @param nodeNlri node Nlri.
+ */
+ public BgpDpid(final BGPNodeLSNlriVer4 nodeNlri) {
+ this.stringBuilder = new StringBuilder("bgpls://");
+
+ if (nodeNlri.getRouteDistinguisher() != null) {
+ this.stringBuilder.append(Long.toString(nodeNlri.getRouteDistinguisher().getRouteDistinguisher()))
+ .append(':');
+ }
+
+ try {
+
+ this.stringBuilder.append(nodeNlri.getProtocolId().toString())
+ .append(':')
+ .append(Long.toString(nodeNlri.getIdentifier()))
+ .append('/');
+
+ add(nodeNlri.getLocalNodeDescriptors().toString());
+
+ } catch (BGPParseException e) {
+ log.info("Exception node string: " + e.toString());
+ }
+ }
+
+ BgpDpid add(final Object value) {
+ if (value != null) {
+ this.stringBuilder.append('&').append('=').append(value.toString());
+ }
+ return this;
+ }
+
+ @Override
+ public String toString() {
+ return this.stringBuilder.toString();
+ }
+
+ /**
+ * Produces bgp URI.
+ *
+ * @param value string to get URI
+ * @return bgp URI, otherwise null
+ */
+ public static URI uri(String value) {
+ try {
+ return new URI(SCHEME, value, null);
+ } catch (URISyntaxException e) {
+ log.info("Exception BgpId URI: " + e.toString());
+ }
+ return null;
+ }
+
+ /**
+ * Returns bgpDpid created from the given device URI.
+ *
+ * @param uri device URI
+ * @return object of BgpDpid
+ */
+ public static BgpDpid bgpDpid(URI uri) {
+ checkArgument(uri.getScheme().equals(SCHEME), "Unsupported URI scheme");
+
+ // TODO: return BgpDpid generated from uri
+ return null;
+ }
+}