Implement fake requestResources() method.

@@ -33,4 +33,9 @@ public class BandwidthResourceRequest implements ResourceRequest {
     public Bandwidth bandwidth() {
         return bandwidth;
     }
+
+    @Override
+    public ResourceType type() {
+        return ResourceType.BANDWIDTH;
+    }
 }

@@ -34,6 +34,12 @@ public final class DefaultLinkResourceRequest implements LinkResourceRequest {
         this.resources = ImmutableSet.copyOf(resources);
     }
 
+
+    @Override
+    public ResourceType type() {
+        return null;
+    }
+
     @Override
     public IntentId intendId() {
         return intentId;

@@ -5,4 +5,9 @@ package org.onlab.onos.net.resource;
  */
 public class LambdaResourceRequest implements ResourceRequest {
 
+    @Override
+    public ResourceType type() {
+        return ResourceType.LAMBDA;
+    }
+
 }

@@ -4,5 +4,11 @@ package org.onlab.onos.net.resource;
  * Abstraction of resource request.
  */
 public interface ResourceRequest {
+    /**
+     * Returns the resource type.
+     *
+     * @return the resource type
+     */
+    ResourceType type();
 
 }

+package org.onlab.onos.net.resource;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+
+import org.onlab.onos.net.Link;
+import org.onlab.onos.net.intent.IntentId;
+
+/**
+ * Implementation of {@link LinkResourceAllocations}.
+ */
+public class DefaultLinkResourceAllocations implements LinkResourceAllocations {
+    private final LinkResourceRequest request;
+    private final Map<Link, Set<ResourceAllocation>> allocations;
+
+    /**
+     * Creates a new link resource allocations.
+     *
+     * @param request requested resources
+     * @param allocations allocated resources
+     */
+    protected DefaultLinkResourceAllocations(LinkResourceRequest request,
+            Map<Link, Set<ResourceAllocation>> allocations) {
+        this.request = request;
+        this.allocations = allocations;
+    }
+
+    @Override
+    public IntentId intendId() {
+        return request.intendId();
+    }
+
+    @Override
+    public Collection<Link> links() {
+        return request.links();
+    }
+
+    @Override
+    public Set<ResourceRequest> resources() {
+        return request.resources();
+    }
+
+    @Override
+    public ResourceType type() {
+        return null;
+    }
+
+    @Override
+    public Set<ResourceAllocation> getResourceAllocation(Link link) {
+        Set<ResourceAllocation> result = allocations.get(link);
+        if (result == null) {
+            result = Collections.emptySet();
+        }
+        return result;
+    }
+
+}

@@ -2,6 +2,10 @@ package org.onlab.onos.net.resource;
 
 import static org.slf4j.LoggerFactory.getLogger;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
@@ -10,6 +14,8 @@ import org.onlab.onos.net.Link;
 import org.onlab.onos.net.intent.IntentId;
 import org.slf4j.Logger;
 
+import com.google.common.collect.Sets;
+
 /**
  * Provides basic implementation of link resources allocation.
  */
@@ -31,8 +37,30 @@ public class LinkResourceManager implements LinkResourceService {
 
     @Override
     public LinkResourceAllocations requestResources(LinkResourceRequest req) {
-        // TODO Auto-generated method stub
-        return null;
+        // TODO implement it using a resource data store.
+
+        ResourceAllocation alloc = null;
+        for (ResourceRequest r: req.resources()) {
+            switch (r.type()) {
+            case BANDWIDTH:
+                log.info("requestResources() always returns requested bandwidth");
+                BandwidthResourceRequest br = (BandwidthResourceRequest) r;
+                alloc = new BandwidthResourceAllocation(br.bandwidth());
+                break;
+            case LAMBDA:
+                log.info("requestResources() always returns lambda 7");
+                alloc = new LambdaResourceAllocation(Lambda.valueOf(7));
+                break;
+            default:
+                break;
+            }
+        }
+
+        Map<Link, Set<ResourceAllocation>> allocations = new HashMap<>();
+        for (Link link: req.links()) {
+            allocations.put(link, Sets.newHashSet(alloc));
+        }
+        return new DefaultLinkResourceAllocations(req, allocations);
     }
 
     @Override