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authorMaros Marsalek <mmarsale@cisco.com>2016-07-27 11:05:51 +0200
committerMaros Marsalek <mmarsale@cisco.com>2016-07-29 16:32:07 +0200
commit81c9cdfa5a9e91b91d73a6a2b20cff8b612d7de3 (patch)
treec941a2e5ea9df88acdfc64392b03228fdd18eb2b /vpp-common/vpp-translate-utils/src/main/java/io
parent10d33239e1e0d10a2f51e6739d18035e61600eb8 (diff)
HONEYCOMB-130: Separate v3po plugin from HC infra
Creating folders: - common/ - infra/ - v3po/ - vpp-common/ Change-Id: I2c39e1b17e39e7c0f0628f44aa5fe08563fa06e4 Signed-off-by: Maros Marsalek <mmarsale@cisco.com>
Diffstat (limited to 'vpp-common/vpp-translate-utils/src/main/java/io')
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/DumpCacheManager.java124
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpExecutor.java41
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpNonEmptyCheck.java33
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpPostProcessingFunction.java36
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/DumpCheckFailedException.java31
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/i/DumpEmptyException.java40
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/DumpExecutionFailedException.java27
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpCallFailedException.java34
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpTimeoutException.java35
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/noop/NoopDumpPostProcessingFunction.java33
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/AbstractInterfaceTypeCustomizer.java103
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/FutureJVppCustomizer.java45
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/NamingContext.java188
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/ReadTimeoutException.java33
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/SubInterfaceUtils.java28
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TagRewriteOperation.java86
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java225
-rw-r--r--vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/WriteTimeoutException.java33
18 files changed, 1175 insertions, 0 deletions
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/DumpCacheManager.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/DumpCacheManager.java
new file mode 100644
index 000000000..e5adb54ad
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/DumpCacheManager.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.check.DumpCheckFailedException;
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.execution.DumpExecutionFailedException;
+import io.fd.honeycomb.translate.v3po.util.cache.noop.NoopDumpPostProcessingFunction;
+import io.fd.honeycomb.v3po.translate.ModificationCache;
+import javax.annotation.Nonnull;
+import org.openvpp.jvpp.dto.JVppReplyDump;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Manager responsible for returning Data object dumps<br> either from cache or by invoking specified {@link
+ * EntityDumpExecutor}
+ */
+public final class DumpCacheManager<T extends JVppReplyDump, U> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(DumpCacheManager.class);
+
+ private final EntityDumpExecutor<T, U> dumpExecutor;
+ private final EntityDumpNonEmptyCheck<T> dumpNonEmptyCheck;
+ private final EntityDumpPostProcessingFunction<T> postProcessor;
+
+ private DumpCacheManager(DumpCacheManagerBuilder<T, U> builder) {
+ this.dumpExecutor = builder.dumpExecutor;
+ this.dumpNonEmptyCheck = builder.dumpNonEmptyCheck;
+ this.postProcessor = builder.postProcessingFunction;
+ }
+
+ /**
+ * Returns {@link Optional<T>} of dump
+ */
+ public Optional<T> getDump(@Nonnull String entityKey, @Nonnull ModificationCache cache)
+ throws DumpExecutionFailedException {
+
+ //this key binding to every log has its logic ,because every customizer have its own cache manager and if
+ //there is need for debugging/fixing some complex call with a lot of data,you can get lost in those logs
+ LOG.debug("Loading dump for KEY[{}]", entityKey);
+
+ T dump = (T) cache.get(entityKey);
+
+ if (dump == null) {
+ LOG.debug("Dump for KEY[{}] not present in cache,invoking dump executor", entityKey);
+
+ dump = dumpExecutor.executeDump();
+
+ //this is not a critical exception, so its only logged here
+ try {
+ dumpNonEmptyCheck.assertNotEmpty(dump);
+ } catch (DumpCheckFailedException e) {
+ LOG.warn("Dump for KEY[{}] has been resolved as empty", entityKey, e);
+ return Optional.absent();
+ }
+
+ //no need to check if post processor active,if wasnt set,default no-op will be used
+ LOG.debug("Post-processing dump for KEY[{}]", entityKey);
+ dump = postProcessor.apply(dump);
+
+ LOG.debug("Caching dump for KEY[{}]", entityKey);
+ cache.put(entityKey, dump);
+ return Optional.of(dump);
+ } else {
+ return Optional.of(dump);
+ }
+ }
+
+ public static final class DumpCacheManagerBuilder<T extends JVppReplyDump, U> {
+
+ private EntityDumpExecutor<T, U> dumpExecutor;
+ private EntityDumpNonEmptyCheck<T> dumpNonEmptyCheck;
+ private EntityDumpPostProcessingFunction<T> postProcessingFunction;
+
+ public DumpCacheManagerBuilder() {
+ //for cases when user does not set specific post-processor
+ postProcessingFunction = new NoopDumpPostProcessingFunction<T>();
+ }
+
+ public DumpCacheManagerBuilder<T, U> withExecutor(@Nonnull EntityDumpExecutor<T, U> executor) {
+ this.dumpExecutor = executor;
+ return this;
+ }
+
+ public DumpCacheManagerBuilder<T, U> withNonEmptyPredicate(@Nonnull EntityDumpNonEmptyCheck<T> check) {
+ this.dumpNonEmptyCheck = check;
+ return this;
+ }
+
+ public DumpCacheManagerBuilder<T, U> withPostProcessingFunction(
+ EntityDumpPostProcessingFunction<T> postProcessingFunction) {
+ this.postProcessingFunction = postProcessingFunction;
+ return this;
+ }
+
+ public DumpCacheManager<T, U> build() {
+ checkNotNull(dumpExecutor, "Dump executor cannot be null");
+ checkNotNull(dumpNonEmptyCheck, "Dump verifier cannot be null");
+ checkNotNull(postProcessingFunction,
+ "Dump post-processor cannot be null cannot be null, default implementation is used if its not set");
+
+ return new DumpCacheManager<>(this);
+ }
+ }
+}
+
+
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpExecutor.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpExecutor.java
new file mode 100644
index 000000000..b25c59a8a
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpExecutor.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache;
+
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.execution.DumpExecutionFailedException;
+import org.openvpp.jvpp.dto.JVppReplyDump;
+
+/**
+ * Generic interface for classes that return dumps for Data objects
+ */
+public interface EntityDumpExecutor<T extends JVppReplyDump, U> {
+
+ /**
+ * Performs dump on {link T} entity
+ *
+ * @return dump of specified {@link T} entity
+ * @throws DumpExecutionFailedException when dump fails
+ */
+ public T executeDump() throws DumpExecutionFailedException;
+
+ /**
+ * Bind dumping params for executor
+ */
+ default public void bindDumpParams(U params) {
+ throw new UnsupportedOperationException("You should override this method if you need to bind dumping params");
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpNonEmptyCheck.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpNonEmptyCheck.java
new file mode 100644
index 000000000..d64e312fe
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpNonEmptyCheck.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache;
+
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.check.DumpCheckFailedException;
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.check.i.DumpEmptyException;
+import org.openvpp.jvpp.dto.JVppReplyDump;
+
+/**
+ * Generic interface for classes that verifies if dump of data object is non-empty
+ */
+public interface EntityDumpNonEmptyCheck<T extends JVppReplyDump> {
+
+ /**
+ * Verifies if data are non-empty,if not throws {@link DumpEmptyException}
+ * @throws DumpEmptyException
+ */
+ public void assertNotEmpty(T data) throws DumpCheckFailedException;
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpPostProcessingFunction.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpPostProcessingFunction.java
new file mode 100644
index 000000000..2bc2446e9
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/EntityDumpPostProcessingFunction.java
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache;
+
+import java.util.function.Function;
+import org.openvpp.jvpp.dto.JVppReplyDump;
+
+/**
+ * Generic interface for class that are post-processing data dumped from vpp
+ */
+@FunctionalInterface
+public interface EntityDumpPostProcessingFunction<T extends JVppReplyDump> extends Function<T, T> {
+
+
+ /**
+ * Performs postprocessing on dumped data
+ *
+ * @return Post-processed data
+ */
+ @Override
+ T apply(T t);
+} \ No newline at end of file
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/DumpCheckFailedException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/DumpCheckFailedException.java
new file mode 100644
index 000000000..39dabb62f
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/DumpCheckFailedException.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache.exceptions.check;
+
+/**
+ * Abstract parent of exceptions thrown while checking if dump is not empty
+ */
+public abstract class DumpCheckFailedException extends Exception {
+
+ public DumpCheckFailedException(String message) {
+ super(message);
+ }
+
+ public DumpCheckFailedException(String message, Exception cause) {
+ super(message, cause);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/i/DumpEmptyException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/i/DumpEmptyException.java
new file mode 100644
index 000000000..8acaf1c9f
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/check/i/DumpEmptyException.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache.exceptions.check.i;
+
+import io.fd.honeycomb.translate.v3po.util.cache.EntityDumpNonEmptyCheck;
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.check.DumpCheckFailedException;
+
+/**
+ * This exception occurs when dump is resolved as empty by {@link EntityDumpNonEmptyCheck}
+ */
+public class DumpEmptyException extends DumpCheckFailedException {
+
+ /**
+ * Creates {@link DumpEmptyException} with specified reason
+ */
+ public DumpEmptyException(String reason) {
+ super(reason);
+ }
+
+ /**
+ * Creates {@link DumpEmptyException} with specified reason and sub-exception
+ */
+ public DumpEmptyException(String reason, Exception e) {
+ super(reason, e);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/DumpExecutionFailedException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/DumpExecutionFailedException.java
new file mode 100644
index 000000000..ba249b6c0
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/DumpExecutionFailedException.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache.exceptions.execution;
+
+/**
+ * Default parent for all exceptions connected to dumping of VPP data
+ */
+public abstract class DumpExecutionFailedException extends Exception {
+
+ public DumpExecutionFailedException(String message, Exception cause) {
+ super(message, cause);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpCallFailedException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpCallFailedException.java
new file mode 100644
index 000000000..02b8722ab
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpCallFailedException.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache.exceptions.execution.i;
+
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.execution.DumpExecutionFailedException;
+import org.openvpp.jvpp.VppBaseCallException;
+
+/**
+ * Wrapper exception for {@link org.openvpp.jvpp.VppBaseCallException} during dumping
+ */
+public class DumpCallFailedException extends DumpExecutionFailedException {
+
+ public DumpCallFailedException(String message, VppBaseCallException cause) {
+ super(message, cause);
+ }
+
+ public static final DumpCallFailedException wrapFailedCallException(String message, VppBaseCallException cause) {
+ return new DumpCallFailedException(message, cause);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpTimeoutException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpTimeoutException.java
new file mode 100644
index 000000000..4bc825408
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/exceptions/execution/i/DumpTimeoutException.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache.exceptions.execution.i;
+
+import io.fd.honeycomb.translate.v3po.util.cache.exceptions.execution.DumpExecutionFailedException;
+import java.util.concurrent.TimeoutException;
+
+/**
+ * Exception thrown when dump call ends in timeout
+ */
+public class DumpTimeoutException extends DumpExecutionFailedException {
+
+ public DumpTimeoutException(String message, TimeoutException cause) {
+ super(message, cause);
+
+ }
+
+ public static final DumpTimeoutException wrapTimeoutException(String message, TimeoutException cause) {
+ return new DumpTimeoutException(message, cause);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/noop/NoopDumpPostProcessingFunction.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/noop/NoopDumpPostProcessingFunction.java
new file mode 100644
index 000000000..58bfe6f0b
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/cache/noop/NoopDumpPostProcessingFunction.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.translate.v3po.util.cache.noop;
+
+import io.fd.honeycomb.translate.v3po.util.cache.EntityDumpPostProcessingFunction;
+import org.openvpp.jvpp.dto.JVppReplyDump;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NoopDumpPostProcessingFunction<T extends JVppReplyDump> implements EntityDumpPostProcessingFunction<T> {
+
+ private static final Logger LOG = LoggerFactory.getLogger(NoopDumpPostProcessingFunction.class);
+
+ @Override
+ public T apply(final T t) {
+ LOG.debug("Default post processing function called for {}", t);
+ return t;
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/AbstractInterfaceTypeCustomizer.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/AbstractInterfaceTypeCustomizer.java
new file mode 100644
index 000000000..1f2fbd838
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/AbstractInterfaceTypeCustomizer.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.v3po.translate.spi.write.WriterCustomizer;
+import io.fd.honeycomb.v3po.translate.write.WriteContext;
+import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.InterfaceType;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.Interface;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.future.FutureJVpp;
+
+/**
+ * Validation WriteCustomizers for Interface subnodes.
+ * Validates the type of interface.
+ *
+ * TODO this should be validated on model/DataTree level. However DataTree does not enforce When conditions
+ * Delete this class when DataTree handles when constraints properly
+ */
+public abstract class AbstractInterfaceTypeCustomizer<D extends DataObject>
+ extends FutureJVppCustomizer implements WriterCustomizer<D> {
+
+ protected AbstractInterfaceTypeCustomizer(final FutureJVpp futureJvpp) {
+ super(futureJvpp);
+ }
+
+ private void checkProperInterfaceType(@Nonnull final WriteContext writeContext,
+ @Nonnull final InstanceIdentifier<D> id) {
+ final InstanceIdentifier<Interface> ifcTypeFromIid = id.firstIdentifierOf(Interface.class);
+ checkArgument(ifcTypeFromIid != null, "Instance identifier does not contain {} type", Interface.class);
+ checkArgument(id.firstKeyOf(Interface.class) != null, "Instance identifier does not contain keyed {} type",
+ Interface.class);
+ final Optional<Interface> interfaceConfig = writeContext.readAfter(ifcTypeFromIid);
+ checkState(interfaceConfig.isPresent(),
+ "Unable to get Interface configuration for an interface: %s currently being updated", ifcTypeFromIid);
+
+ IllegalInterfaceTypeException
+ .checkInterfaceType(interfaceConfig.get(), getExpectedInterfaceType());
+ }
+
+ protected abstract Class<? extends InterfaceType> getExpectedInterfaceType();
+
+ /**
+ * Validate expected interface type
+ */
+ @Override
+ public final void writeCurrentAttributes(@Nonnull final InstanceIdentifier<D> id, @Nonnull final D dataAfter,
+ @Nonnull final WriteContext writeContext) throws WriteFailedException {
+ checkProperInterfaceType(writeContext, id);
+ writeInterface(id, dataAfter, writeContext);
+ }
+
+ protected abstract void writeInterface(final InstanceIdentifier<D> id, final D dataAfter,
+ final WriteContext writeContext)
+ throws WriteFailedException;
+
+ // Validation for update and delete is not necessary
+
+ /**
+ * Indicates unexpected interface type
+ */
+ protected static final class IllegalInterfaceTypeException extends IllegalArgumentException {
+
+ private IllegalInterfaceTypeException(final String msg) {
+ super(msg);
+ }
+
+ /**
+ * Check the type of interface equals expected type
+ *
+ * @throws IllegalInterfaceTypeException if type of interface is null or not expected
+ */
+ static void checkInterfaceType(@Nonnull final Interface ifc,
+ @Nonnull final Class<? extends InterfaceType> expectedType) {
+ if (ifc.getType() == null || !expectedType.equals(ifc.getType())) {
+ throw new IllegalInterfaceTypeException(String.format(
+ "Unexpected interface type: %s for interface: %s. Expected interface is: %s", ifc.getType(),
+ ifc.getName(), expectedType));
+ }
+ }
+
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/FutureJVppCustomizer.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/FutureJVppCustomizer.java
new file mode 100644
index 000000000..3f4f1f5ce
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/FutureJVppCustomizer.java
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import com.google.common.annotations.Beta;
+import com.google.common.base.Preconditions;
+import org.openvpp.jvpp.future.FutureJVpp;
+
+import javax.annotation.Nonnull;
+
+/**
+ * Abstract utility to hold the vppApi reference.
+ */
+@Beta
+public abstract class FutureJVppCustomizer {
+
+ private final FutureJVpp futureJvpp;
+
+ public FutureJVppCustomizer(@Nonnull final FutureJVpp futureJvpp) {
+ this.futureJvpp = Preconditions.checkNotNull(futureJvpp, "futureJvpp should not be null");
+ }
+
+ /**
+ * Get vppApi reference
+ *
+ * @return vppApi reference
+ */
+ public FutureJVpp getFutureJVpp() {
+ return futureJvpp;
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/NamingContext.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/NamingContext.java
new file mode 100644
index 000000000..f6e0e6d48
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/NamingContext.java
@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import static com.google.common.base.Preconditions.checkArgument;
+import static com.google.common.base.Preconditions.checkState;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.v3po.translate.MappingContext;
+import io.fd.honeycomb.v3po.translate.util.RWUtils;
+import java.util.stream.Collector;
+import javax.annotation.Nonnull;
+import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.Contexts;
+import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.NamingContextKey;
+import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.naming.context.Mappings;
+import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.naming.context.mappings.Mapping;
+import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.naming.context.mappings.MappingBuilder;
+import org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.naming.context.mappings.MappingKey;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Utility adapter on top of {@link MappingContext} storing integer to string mappings according to naming-context yang
+ * model
+ */
+public final class NamingContext implements AutoCloseable {
+
+ private static final Logger LOG = LoggerFactory.getLogger(NamingContext.class);
+
+ private final String artificialNamePrefix;
+ private final KeyedInstanceIdentifier<org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.NamingContext, NamingContextKey>
+ namingContextIid;
+
+ private static final Collector<Mapping, ?, Mapping> SINGLE_ITEM_COLLECTOR = RWUtils.singleItemCollector();
+
+ /**
+ * Create new naming context
+ *
+ * @param artificialNamePrefix artificial name to be used for items without a name in VPP (or not provided)
+ * @param instanceName name of this context instance. Will be used as list item identifier within context data tree
+ */
+ public NamingContext(@Nonnull final String artificialNamePrefix, @Nonnull final String instanceName) {
+ this.artificialNamePrefix = artificialNamePrefix;
+ namingContextIid = InstanceIdentifier.create(Contexts.class).child(
+ org.opendaylight.yang.gen.v1.urn.honeycomb.params.xml.ns.yang.naming.context.rev160513.contexts.NamingContext.class,
+ new NamingContextKey(instanceName));
+ }
+
+ /**
+ * Retrieve name for mapping stored provided mappingContext instance. If not present, artificial name will be
+ * generated.
+ *
+ * @param index index of a mapped item
+ * @param mappingContext mapping context providing context data for current transaction
+ *
+ * @return name mapped to provided index
+ */
+ @Nonnull
+ public synchronized String getName(final int index, @Nonnull final MappingContext mappingContext) {
+ if (!containsName(index, mappingContext)) {
+ final String artificialName = getArtificialName(index);
+ addName(index, artificialName, mappingContext);
+ }
+
+ final Optional<Mappings> read = mappingContext.read(namingContextIid.child(Mappings.class));
+ checkState(read.isPresent(), "Mapping for index: %s is not present. But should be", index);
+
+ return read.get().getMapping().stream()
+ .filter(mapping -> mapping.getIndex().equals(index))
+ .collect(SINGLE_ITEM_COLLECTOR).getName();
+ }
+
+ /**
+ * Retrieve name for mapping stored provided mappingContext instance. if present
+ *
+ * @param index index of a mapped item
+ * @param mappingContext mapping context providing context data for current transaction
+ *
+ * @return name mapped to provided index
+ */
+ @Nonnull
+ public synchronized Optional<String> getNameIfPresent(final int index,
+ @Nonnull final MappingContext mappingContext) {
+ final Optional<Mappings> read = mappingContext.read(namingContextIid.child(Mappings.class));
+
+ return read.isPresent()
+ ? Optional.of(read.get().getMapping().stream()
+ .filter(mapping -> mapping.getIndex().equals(index))
+ .collect(SINGLE_ITEM_COLLECTOR)
+ .getName())
+ : Optional.absent();
+ }
+
+ /**
+ * Check whether mapping is present for index.
+ *
+ * @param index index of a mapped item
+ * @param mappingContext mapping context providing context data for current transaction
+ *
+ * @return true if present, false otherwise
+ */
+ public synchronized boolean containsName(final int index, @Nonnull final MappingContext mappingContext) {
+ final Optional<Mappings> read = mappingContext.read(namingContextIid.child(Mappings.class));
+ return read.isPresent()
+ ? read.get().getMapping().stream().anyMatch(mapping -> mapping.getIndex().equals(index))
+ : false;
+ }
+
+
+ /**
+ * Add mapping to current context
+ *
+ * @param index index of a mapped item
+ * @param name name of a mapped item
+ * @param mappingContext mapping context providing context data for current transaction
+ */
+ public synchronized void addName(final int index, final String name, final MappingContext mappingContext) {
+ final KeyedInstanceIdentifier<Mapping, MappingKey> mappingIid = getMappingIid(name);
+ mappingContext.put(mappingIid, new MappingBuilder().setIndex(index).setName(name).build());
+ }
+
+ private KeyedInstanceIdentifier<Mapping, MappingKey> getMappingIid(final String name) {
+ return namingContextIid.child(Mappings.class).child(Mapping.class, new MappingKey(name));
+ }
+
+ /**
+ * Remove mapping from current context
+ *
+ * @param name name of a mapped item
+ * @param mappingContext mapping context providing context data for current transaction
+ */
+ public synchronized void removeName(final String name, final MappingContext mappingContext) {
+ mappingContext.delete(getMappingIid(name));
+ }
+
+ /**
+ * Returns index value associated with the given name.
+ *
+ * @param name the name whose associated index value is to be returned
+ * @param mappingContext mapping context providing context data for current transaction
+ *
+ * @return integer index value matching supplied name
+ * @throws IllegalArgumentException if name was not found
+ */
+ public synchronized int getIndex(final String name, final MappingContext mappingContext) {
+ final Optional<Mapping> read = mappingContext.read(getMappingIid(name));
+ checkArgument(read.isPresent(), "No mapping stored for name: %s", name);
+ return read.get().getIndex();
+
+ }
+
+ /**
+ * Check whether mapping is present for name.
+ *
+ * @param name name of a mapped item
+ * @param mappingContext mapping context providing context data for current transaction
+ *
+ * @return true if present, false otherwise
+ */
+ public synchronized boolean containsIndex(final String name, final MappingContext mappingContext) {
+ return mappingContext.read(getMappingIid(name)).isPresent();
+ }
+
+ private String getArtificialName(final int index) {
+ return artificialNamePrefix + index;
+ }
+
+ @Override
+ public void close() throws Exception {
+ /// Not removing the mapping from backing storage
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/ReadTimeoutException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/ReadTimeoutException.java
new file mode 100644
index 000000000..654b13825
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/ReadTimeoutException.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import com.google.common.annotations.Beta;
+import io.fd.honeycomb.v3po.translate.read.ReadFailedException;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Thrown when read method invocation times out.
+ */
+@Beta
+public class ReadTimeoutException extends ReadFailedException {
+
+ public ReadTimeoutException(final InstanceIdentifier<?> id, final Throwable cause) {
+ super(id, cause);
+ }
+
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/SubInterfaceUtils.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/SubInterfaceUtils.java
new file mode 100644
index 000000000..1df82af73
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/SubInterfaceUtils.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+public final class SubInterfaceUtils {
+
+ private SubInterfaceUtils() {
+ throw new UnsupportedOperationException("Utility class cannot be instantiated.");
+ }
+
+ public static String getSubInterfaceName(final String superIfName, final int subIfaceId) {
+ return String.format("%s.%d", superIfName, subIfaceId);
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TagRewriteOperation.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TagRewriteOperation.java
new file mode 100644
index 000000000..316d1f8e2
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TagRewriteOperation.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import com.google.common.base.Preconditions;
+import com.google.common.primitives.UnsignedBytes;
+import javax.annotation.Nonnegative;
+import javax.annotation.Nullable;
+
+/**
+ * Defines vlan tag rewrite config options for VPP
+ *
+ * TODO corresponding enum (defined in l2_vtr.h) should be defined in vpe.api
+ * (does vpp's IDL support enum type definition?)
+ * which would allow to generate this class in jvpp
+ */
+public enum TagRewriteOperation {
+ disabled(0),
+ push_1(0),
+ push_2(0),
+ pop_1(1),
+ pop_2(2),
+ translate_1_to_1(1),
+ translate_1_to_2(1),
+ translate_2_to_1(2),
+ translate_2_to_2(2);
+
+ private final static int MAX_INDEX = 3;
+ private final int code;
+ private final byte popTags;
+
+ TagRewriteOperation(final int popTags) {
+ this.code = this.ordinal();
+ this.popTags = UnsignedBytes.checkedCast(popTags);
+ }
+
+ private static TagRewriteOperation[][] translation = new TagRewriteOperation[][] {
+ {disabled, push_1, push_2},
+ {pop_1, translate_1_to_1, translate_1_to_2},
+ {pop_2, translate_2_to_1, translate_2_to_2}
+ };
+
+ /**
+ * Returns VPP tag rewrite operation for given number of tags to pop and tags to push.
+ * @param toPop number of tags to pop (0..2)
+ * @param toPush number of tags to push (0..2)
+ * @return vpp tag rewrite operation for given input parameters
+ */
+ public static TagRewriteOperation get(@Nonnegative final int toPop, @Nonnegative final int toPush) {
+ Preconditions.checkElementIndex(toPop, MAX_INDEX, "Illegal number of tags to pop");
+ Preconditions.checkElementIndex(toPush, MAX_INDEX, "Illegal number of tags to push");
+ return translation[toPop][toPush];
+ }
+
+ /**
+ * Returns VPP tag rewrite operation for given operation code.
+ * @param code VPP tag rewrite operation code
+ * @return vpp tag rewrite operation for given input parameter
+ */
+ @Nullable
+ public static TagRewriteOperation get(@Nonnegative final int code) {
+ for (TagRewriteOperation operation : TagRewriteOperation.values()) {
+ if (code == operation.code){
+ return operation;
+ }
+ }
+ return null;
+ }
+
+ public byte getPopTags() {
+ return popTags;
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java
new file mode 100644
index 000000000..1a6a50133
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/TranslateUtils.java
@@ -0,0 +1,225 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import com.google.common.base.Splitter;
+import com.google.common.net.InetAddresses;
+import java.net.UnknownHostException;
+import java.util.Arrays;
+import java.util.List;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+import java.util.function.BiConsumer;
+import javax.annotation.Nonnegative;
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.openvpp.jvpp.VppBaseCallException;
+import org.openvpp.jvpp.dto.JVppReply;
+
+public final class TranslateUtils {
+
+ public static final Splitter COLON_SPLITTER = Splitter.on(':');
+ public static final int DEFAULT_TIMEOUT_IN_SECONDS = 5;
+
+ private TranslateUtils() {
+ }
+
+ public static <REP extends JVppReply<?>> REP getReplyForWrite(@Nonnull Future<REP> future,
+ @Nonnull final InstanceIdentifier<?> replyType)
+ throws VppBaseCallException, WriteTimeoutException {
+ return getReplyForWrite(future, replyType, DEFAULT_TIMEOUT_IN_SECONDS);
+ }
+
+ public static <REP extends JVppReply<?>> REP getReplyForWrite(@Nonnull Future<REP> future,
+ @Nonnull final InstanceIdentifier<?> replyType,
+ @Nonnegative final int timeoutInSeconds)
+ throws VppBaseCallException, WriteTimeoutException {
+ try {
+ return getReply(future, timeoutInSeconds);
+ } catch (TimeoutException e) {
+ throw new WriteTimeoutException(replyType, e);
+ }
+ }
+
+ public static <REP extends JVppReply<?>> REP getReplyForRead(@Nonnull Future<REP> future,
+ @Nonnull final InstanceIdentifier<?> replyType)
+ throws VppBaseCallException, ReadTimeoutException {
+ return getReplyForRead(future, replyType, DEFAULT_TIMEOUT_IN_SECONDS);
+ }
+
+ public static <REP extends JVppReply<?>> REP getReplyForRead(@Nonnull Future<REP> future,
+ @Nonnull final InstanceIdentifier<?> replyType,
+ @Nonnegative final int timeoutInSeconds)
+ throws VppBaseCallException, ReadTimeoutException {
+ try {
+ return getReply(future, timeoutInSeconds);
+ } catch (TimeoutException e) {
+ throw new ReadTimeoutException(replyType, e);
+ }
+ }
+
+ public static <REP extends JVppReply<?>> REP getReply(@Nonnull Future<REP> future)
+ throws TimeoutException, VppBaseCallException {
+ return getReply(future, DEFAULT_TIMEOUT_IN_SECONDS);
+ }
+
+ public static <REP extends JVppReply<?>> REP getReply(@Nonnull Future<REP> future,
+ @Nonnegative final int timeoutInSeconds)
+ throws TimeoutException, VppBaseCallException {
+ try {
+ checkArgument(timeoutInSeconds > 0, "Timeout cannot be < 0");
+ return future.get(timeoutInSeconds, TimeUnit.SECONDS);
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ throw new IllegalStateException("Interrupted", e);
+ } catch (ExecutionException e) {
+ // Execution exception could generally contains any exception
+ // when using exceptions instead of return codes just rethrow it for processing on corresponding place
+ if (e instanceof ExecutionException && (e.getCause() instanceof VppBaseCallException)) {
+ throw (VppBaseCallException) (e.getCause());
+ }
+ throw new IllegalStateException(e);
+ }
+ }
+
+ /**
+ * Transform Ipv4 address to a byte array acceptable by VPP. VPP expects incoming byte array to be in the same order
+ * as the address.
+ *
+ * @return byte array with address bytes
+ */
+ public static byte[] ipv4AddressNoZoneToArray(final Ipv4AddressNoZone ipv4Addr) {
+ byte[] retval = new byte[4];
+ String[] dots = ipv4Addr.getValue().split("\\.");
+
+ for (int d = 0; d < 4; d++) {
+ retval[d] = (byte) (Short.parseShort(dots[d]) & 0xff);
+ }
+ return retval;
+ }
+
+ /**
+ * Parse byte array returned by VPP representing an Ipv4 address. Vpp returns IP byte arrays in reversed order.
+ *
+ * @return Ipv4AddressNoZone containing string representation of IPv4 address constructed from submitted bytes. No
+ * change in order.
+ */
+ @Nonnull
+ public static Ipv4AddressNoZone arrayToIpv4AddressNoZone(@Nonnull byte[] ip) {
+ // VPP sends ipv4 in a 16 byte array
+ if (ip.length == 16) {
+ ip = Arrays.copyOfRange(ip, 0, 4);
+ }
+ try {
+ // Not reversing the byte array here!! because the IP coming from VPP is in reversed byte order
+ // compared to byte order it was submitted
+ return new Ipv4AddressNoZone(InetAddresses.toAddrString(InetAddresses.fromLittleEndianByteArray(ip)));
+ } catch (UnknownHostException e) {
+ throw new IllegalArgumentException("Unable to parse ipv4", e);
+ }
+ }
+
+ /**
+ * Return (interned) string from byte array while removing \u0000. Strings represented as fixed length byte[] from
+ * vpp contain \u0000.
+ */
+ public static String toString(final byte[] cString) {
+ return new String(cString).replaceAll("\\u0000", "").intern();
+ }
+
+ /**
+ * Parse string represented mac address (using ":" as separator) into a byte array
+ */
+ @Nonnull
+ public static byte[] parseMac(@Nonnull final String macAddress) {
+ final List<String> parts = COLON_SPLITTER.splitToList(macAddress);
+ checkArgument(parts.size() == 6, "Mac address is expected to have 6 parts but was: %s", macAddress);
+ return parseMacLikeString(parts);
+ }
+
+ private static byte[] parseMacLikeString(final List<String> strings) {
+ return strings.stream().limit(6).map(TranslateUtils::parseHexByte).collect(
+ () -> new byte[strings.size()],
+ new BiConsumer<byte[], Byte>() {
+
+ private int i = -1;
+
+ @Override
+ public void accept(final byte[] bytes, final Byte aByte) {
+ bytes[++i] = aByte;
+ }
+ },
+ (bytes, bytes2) -> {
+ throw new UnsupportedOperationException("Parallel collect not supported");
+ });
+ }
+
+ public static byte parseHexByte(final String aByte) {
+ return (byte) Integer.parseInt(aByte, 16);
+ }
+
+ /**
+ * Returns 0 if argument is null or false, 1 otherwise.
+ *
+ * @param value Boolean value to be converted
+ * @return byte value equal to 0 or 1
+ */
+ public static byte booleanToByte(@Nullable final Boolean value) {
+ return value != null && value
+ ? (byte) 1
+ : (byte) 0;
+ }
+
+ /**
+ * Returns Boolean.TRUE if argument is 0, Boolean.FALSE otherwise.
+ *
+ * @param value byte value to be converted
+ * @return Boolean value
+ * @throws IllegalArgumentException if argument is neither 0 nor 1
+ */
+ @Nonnull
+ public static Boolean byteToBoolean(final byte value) {
+ if (value == 0) {
+ return Boolean.FALSE;
+ } else if (value == 1) {
+ return Boolean.TRUE;
+ }
+ throw new IllegalArgumentException(String.format("0 or 1 was expected but was %d", value));
+ }
+
+ /**
+ * Reverses bytes in the byte array
+ *
+ * @param bytes input array
+ * @return reversed array
+ */
+ public static byte[] reverseBytes(final byte[] bytes) {
+ final byte[] reversed = new byte[bytes.length];
+ int i = 1;
+ for (byte aByte : bytes) {
+ reversed[bytes.length - i++] = aByte;
+ }
+
+ return reversed;
+ }
+}
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/WriteTimeoutException.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/WriteTimeoutException.java
new file mode 100644
index 000000000..9516459b2
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/v3po/translate/v3po/util/WriteTimeoutException.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2016 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.honeycomb.v3po.translate.v3po.util;
+
+import com.google.common.annotations.Beta;
+import io.fd.honeycomb.v3po.translate.write.WriteFailedException;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * Thrown when write method invocation times out.
+ */
+@Beta
+public class WriteTimeoutException extends WriteFailedException {
+
+ public WriteTimeoutException(final InstanceIdentifier<?> id, final Throwable cause) {
+ super(id, cause);
+ }
+
+}