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authorJan Srnicek <jsrnicek@cisco.com>2016-09-13 15:25:54 +0200
committerMarek Gradzki <mgradzki@cisco.com>2016-09-14 07:54:55 +0000
commit253ae56182744411bcb2873cb5e40338479a2b52 (patch)
tree82862e7fecb0823279d57f43b28ef94b2cd95083 /infra
parent1f2e93383b693c51d5a0db6ca9cf2015a6cd721e (diff)
Dump cache management moved to translate-utils
Removed all references to vpp to be usable in any plugin Change-Id: Id63b06d643f4004e67b2502fc02e58cf3d238b3b Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>
Diffstat (limited to 'infra')
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/DumpCacheManager.java123
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpExecutor.java38
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpNonEmptyCheck.java31
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpPostProcessingFunction.java35
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/check/DumpCheckFailedException.java31
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/check/i/DumpEmptyException.java40
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/DumpExecutionFailedException.java27
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpCallFailedException.java33
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpTimeoutException.java35
-rw-r--r--infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/noop/NoopDumpPostProcessingFunction.java32
10 files changed, 425 insertions, 0 deletions
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/DumpCacheManager.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/DumpCacheManager.java
new file mode 100644
index 0000000..dfb6214
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/DumpCacheManager.java
@@ -0,0 +1,123 @@
+/*
+ * 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.util.read.cache;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+
+import com.google.common.base.Optional;
+import io.fd.honeycomb.translate.ModificationCache;
+import io.fd.honeycomb.translate.util.read.cache.exceptions.check.DumpCheckFailedException;
+import io.fd.honeycomb.translate.util.read.cache.exceptions.execution.DumpExecutionFailedException;
+import io.fd.honeycomb.translate.util.read.cache.noop.NoopDumpPostProcessingFunction;
+import javax.annotation.Nonnull;
+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, 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, final U dumpParams)
+ 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);
+ // binds and execute dump to be thread-save
+ dump = dumpExecutor.executeDump(dumpParams);
+
+ // TODO (HONEYCOMB-210): remove empty check (empty dump is normal state, special handling is not needed)
+ try {
+ dumpNonEmptyCheck.assertNotEmpty(dump);
+ } catch (DumpCheckFailedException e) {
+ LOG.debug("Dump for KEY[{}] has been resolved as empty: {}", entityKey, e.getMessage());
+ return Optional.absent();
+ }
+
+ // no need to check if post processor active,if wasn't 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, 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/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpExecutor.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpExecutor.java
new file mode 100644
index 0000000..c220da4
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpExecutor.java
@@ -0,0 +1,38 @@
+/*
+ * 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.util.read.cache;
+
+import io.fd.honeycomb.translate.util.read.cache.exceptions.execution.DumpExecutionFailedException;
+import javax.annotation.concurrent.ThreadSafe;
+
+/**
+ * Generic interface for classes that return dumps for Data objects.
+ * Must be implemented in Thread-save fashion.
+ */
+@ThreadSafe
+public interface EntityDumpExecutor<T, U> {
+
+ static Void NO_PARAMS = null;
+
+ /**
+ * Performs dump on {@link T} entity
+ *
+ * @return dump of specified {@link T} entity
+ * @throws DumpExecutionFailedException when dump fails
+ */
+ T executeDump(final U params) throws DumpExecutionFailedException;
+}
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpNonEmptyCheck.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpNonEmptyCheck.java
new file mode 100644
index 0000000..7c59270
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpNonEmptyCheck.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.util.read.cache;
+
+import io.fd.honeycomb.translate.util.read.cache.exceptions.check.DumpCheckFailedException;
+import io.fd.honeycomb.translate.util.read.cache.exceptions.check.i.DumpEmptyException;
+
+/**
+ * Generic interface for classes that verifies if dump of data object is non-empty
+ */
+public interface EntityDumpNonEmptyCheck<T> {
+
+ /**
+ * Verifies if data are non-empty,if not throws {@link DumpEmptyException}
+ */
+ public void assertNotEmpty(T data) throws DumpCheckFailedException;
+}
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpPostProcessingFunction.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpPostProcessingFunction.java
new file mode 100644
index 0000000..ce39425
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/EntityDumpPostProcessingFunction.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.util.read.cache;
+
+import java.util.function.Function;
+
+/**
+ * Generic interface for class that are post-processing data dumped from vpp
+ */
+@FunctionalInterface
+public interface EntityDumpPostProcessingFunction<T> 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/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/check/DumpCheckFailedException.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/check/DumpCheckFailedException.java
new file mode 100644
index 0000000..097ef34
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/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.util.read.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/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/check/i/DumpEmptyException.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/check/i/DumpEmptyException.java
new file mode 100644
index 0000000..8769827
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/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.util.read.cache.exceptions.check.i;
+
+import io.fd.honeycomb.translate.util.read.cache.EntityDumpNonEmptyCheck;
+import io.fd.honeycomb.translate.util.read.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/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/DumpExecutionFailedException.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/DumpExecutionFailedException.java
new file mode 100644
index 0000000..806a550
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/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.util.read.cache.exceptions.execution;
+
+/**
+ * Default parent for all exceptions connected to dumping of data
+ */
+public abstract class DumpExecutionFailedException extends Exception {
+
+ public DumpExecutionFailedException(String message, Exception cause) {
+ super(message, cause);
+ }
+}
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpCallFailedException.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpCallFailedException.java
new file mode 100644
index 0000000..ba79407
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpCallFailedException.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.util.read.cache.exceptions.execution.i;
+
+import io.fd.honeycomb.translate.util.read.cache.exceptions.execution.DumpExecutionFailedException;
+
+/**
+ * Wrapper exception for any execution exception during dumping
+ */
+public class DumpCallFailedException extends DumpExecutionFailedException {
+
+ public DumpCallFailedException(String message, Exception cause) {
+ super(message, cause);
+ }
+
+ public static final DumpCallFailedException wrapFailedCallException(String message, Exception cause) {
+ return new DumpCallFailedException(message, cause);
+ }
+}
diff --git a/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpTimeoutException.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/exceptions/execution/i/DumpTimeoutException.java
new file mode 100644
index 0000000..be440ba
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/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.util.read.cache.exceptions.execution.i;
+
+import io.fd.honeycomb.translate.util.read.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/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/noop/NoopDumpPostProcessingFunction.java b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/noop/NoopDumpPostProcessingFunction.java
new file mode 100644
index 0000000..db4d1dc
--- /dev/null
+++ b/infra/translate-utils/src/main/java/io/fd/honeycomb/translate/util/read/cache/noop/NoopDumpPostProcessingFunction.java
@@ -0,0 +1,32 @@
+/*
+ * 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.util.read.cache.noop;
+
+import io.fd.honeycomb.translate.util.read.cache.EntityDumpPostProcessingFunction;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class NoopDumpPostProcessingFunction<T> 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;
+ }
+}