1 files changed, 59 insertions, 0 deletions
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/cache/InterfaceCacheDumpManager.java b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/cache/InterfaceCacheDumpManager.java
new file mode 100644
index 000000000..3d8df7e6c
--- /dev/null
+++ b/v3po/v3po2vpp/src/main/java/io/fd/hc2vpp/v3po/read/cache/InterfaceCacheDumpManager.java
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ *
+ * 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 io.fd.hc2vpp.v3po.read.cache;
+
+import io.fd.honeycomb.translate.read.ReadContext;
+import io.fd.honeycomb.translate.read.ReadFailedException;
+import io.fd.jvpp.core.dto.SwInterfaceDetails;
+import java.util.stream.Stream;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Manager for dump data of interfaces. The main purpose of this manager is to cache common interface data between
+ * various classes that process this kind of data. If reader does not use this utility, it introduces a big overhead
+ * because of size/complexity of interfaces dump
+ */
+public interface InterfaceCacheDumpManager {
+
+    /**
+     * Provides stream of all currently configured vpp interfaces
+     *
+     * @param identifier id of currently processed data
+     * @param ctx        context of current transaction
+     * @return {@link Stream} of currently configured interfaces
+     * @throws ReadFailedException if dumping of data was unsuccessful
+     */
+    @Nonnull
+    Stream<SwInterfaceDetails> getInterfaces(@Nonnull final InstanceIdentifier<?> identifier,
+                                             @Nonnull final ReadContext ctx) throws ReadFailedException;
+
+    /**
+     * Provides details of interface
+     *
+     * @param identifier    id of currently processed data
+     * @param ctx           context of current transaction
+     * @param interfaceName name of requested interface
+     * @return {@link SwInterfaceDetails} of requested interface
+     * @throws ReadFailedException if dumping of data was unsuccessful
+     */
+    @Nullable
+    SwInterfaceDetails getInterfaceDetail(@Nonnull final InstanceIdentifier<?> identifier,
+                                          @Nonnull final ReadContext ctx,
+                                          @Nonnull final String interfaceName) throws ReadFailedException;
+}