[
https://issues.apache.org/jira/browse/METRON-706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858332#comment-15858332
]
ASF GitHub Bot commented on METRON-706:
---------------------------------------
Github user cestella commented on a diff in the pull request:
https://github.com/apache/incubator-metron/pull/445#discussion_r100131091
--- Diff:
metron-platform/metron-data-management/src/main/java/org/apache/metron/dataloads/extractor/TransformFilterExtractorDecorator.java
---
@@ -0,0 +1,236 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you 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.apache.metron.dataloads.extractor;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import org.apache.commons.lang.StringUtils;
+import org.apache.curator.framework.CuratorFramework;
+import org.apache.log4j.Logger;
+import org.apache.metron.common.configuration.ConfigurationsUtils;
+import org.apache.metron.common.dsl.Context;
+import org.apache.metron.common.dsl.MapVariableResolver;
+import org.apache.metron.common.dsl.StellarFunctions;
+import org.apache.metron.common.stellar.StellarPredicateProcessor;
+import org.apache.metron.common.stellar.StellarProcessor;
+import org.apache.metron.common.utils.ConversionUtils;
+import org.apache.metron.common.utils.JSONUtils;
+import org.apache.metron.enrichment.lookup.LookupKV;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.util.*;
+
+import static
org.apache.metron.dataloads.extractor.TransformFilterExtractorDecorator.ExtractorOptions.*;
+
+public class TransformFilterExtractorDecorator extends ExtractorDecorator {
+ private static final Logger LOG =
Logger.getLogger(TransformFilterExtractorDecorator.class);
+
+ protected enum ExtractorOptions {
+ VALUE_TRANSFORM("value_transform"),
+ VALUE_FILTER("value_filter"),
+ INDICATOR_TRANSFORM("indicator_transform"),
+ INDICATOR_FILTER("indicator_filter"),
+ ZK_QUORUM("zk_quorum"),
+ INDICATOR("indicator");
+
+ private String key;
+
+ ExtractorOptions(String key) {
+ this.key = key;
+ }
+
+ @Override
+ public String toString() {
+ return key;
+ }
+
+ public boolean existsIn(Map<String, Object> config) {
+ return config.containsKey(key);
+ }
+ }
+
+ private Optional<CuratorFramework> zkClient;
+ private Map<String, String> valueTransforms;
+ private Map<String, String> indicatorTransforms;
+ private String valueFilter;
+ private String indicatorFilter;
+ private Context stellarContext;
+ private StellarProcessor transformProcessor;
+ private StellarPredicateProcessor filterProcessor;
+ private Map<String, Object> globalConfig;
+
+ public TransformFilterExtractorDecorator(Extractor decoratedExtractor) {
+ super(decoratedExtractor);
+ this.zkClient = Optional.empty();
+ this.valueTransforms = new LinkedHashMap<>();
+ this.indicatorTransforms = new LinkedHashMap<>();
+ this.valueFilter = "";
+ this.indicatorFilter = "";
+ this.transformProcessor = new StellarProcessor();
+ this.filterProcessor = new StellarPredicateProcessor();
+ }
+
+ @Override
+ public void initialize(Map<String, Object> config) {
+ super.initialize(config);
+ if (VALUE_TRANSFORM.existsIn(config)) {
+ this.valueTransforms = getTransforms(config,
VALUE_TRANSFORM.toString());
+ }
+ if (INDICATOR_TRANSFORM.existsIn(config)) {
+ this.indicatorTransforms = getTransforms(config,
INDICATOR_TRANSFORM.toString());
+ }
+ if (VALUE_FILTER.existsIn(config)) {
+ this.valueFilter = getFilter(config, VALUE_FILTER.toString());
+ }
+ if (INDICATOR_FILTER.existsIn(config)) {
+ this.indicatorFilter = getFilter(config,
INDICATOR_FILTER.toString());
+ }
+ String zkClientUrl = "";
+ if (ZK_QUORUM.existsIn(config)) {
+ zkClientUrl =
ConversionUtils.convert(config.get(ZK_QUORUM.toString()), String.class);
+ }
+ zkClient = setupClient(zkClient, zkClientUrl);
+ this.globalConfig = getGlobalConfig(zkClient);
+ this.stellarContext = createContext(zkClient);
+ StellarFunctions.initialize(stellarContext);
+ this.transformProcessor = new StellarProcessor();
+ this.filterProcessor = new StellarPredicateProcessor();
+ }
+
+ private String getFilter(Map<String, Object> config, String valueFilter)
{
+ return ConversionUtils.convertOrFail(config.get(valueFilter),
String.class);
+ }
+
+ /**
+ * Get a map of the transformations from the config of the specified type
+ * @param config main config map
+ * @param type the transformation type to get from config
+ * @return map of transformations.
+ */
+ private Map<String, String> getTransforms(Map<String, Object> config,
String type) {
+ Map<Object, Object> transformsConfig =
ConversionUtils.convertOrFail(config.get(type), Map.class);
+ Map<String, String> transforms = new LinkedHashMap<>();
+ for (Map.Entry<Object, Object> e : transformsConfig.entrySet()) {
+ String key = ConversionUtils.convertOrFail(e.getKey(), String.class);
+ String val = ConversionUtils.convertOrFail(e.getValue(),
String.class);
+ transforms.put(key, val);
+ }
+ return transforms;
+ }
+
+ /**
+ * Creates a Zookeeper client if it doesn't exist and a url for zk is
provided.
+ * @param zookeeperUrl The Zookeeper URL.
+ */
+ private Optional<CuratorFramework>
setupClient(Optional<CuratorFramework> zkClient, String zookeeperUrl) {
+ // can only create client if we have a valid zookeeper URL
+ if (!zkClient.isPresent()) {
+ if (StringUtils.isNotBlank(zookeeperUrl)) {
+ CuratorFramework client =
ConfigurationsUtils.getClient(zookeeperUrl);
+ client.start();
+ return Optional.of(client);
+ } else {
+ LOG.warn("Unable to setup zookeeper client - zk_quorum url not
provided. **This will limit some Stellar functionality**");
+ return Optional.empty();
+ }
+ } else {
+ return zkClient;
+ }
+ }
+
+ private Map<String, Object> getGlobalConfig(Optional<CuratorFramework>
zkClient) {
+ if (zkClient.isPresent()) {
+ try {
+ return JSONUtils.INSTANCE.load(
+ new
ByteArrayInputStream(ConfigurationsUtils.readGlobalConfigBytesFromZookeeper(zkClient.get())),
+ new TypeReference<Map<String, Object>>() {
+ });
+ } catch (Exception e) {
+ LOG.warn("Exception thrown while attempting to get global config
from Zookeeper.", e);
+ }
+ }
+ return new LinkedHashMap<>();
+ }
+
+ private Context createContext(Optional<CuratorFramework> zkClient) {
+ Context.Builder builder = new Context.Builder();
+ if (zkClient.isPresent()) {
+ builder.with(Context.Capabilities.ZOOKEEPER_CLIENT, zkClient::get)
+ .with(Context.Capabilities.GLOBAL_CONFIG, () ->
globalConfig);
--- End diff --
I mean `{}`
> Add Stellar transformations and filters to enrichment and threat intel loaders
> ------------------------------------------------------------------------------
>
> Key: METRON-706
> URL: https://issues.apache.org/jira/browse/METRON-706
> Project: Metron
> Issue Type: Improvement
> Reporter: Michael Miklavcic
> Assignee: Michael Miklavcic
>
> This Jira tracks work to add the ability to transform and filter data being
> loaded into the enrichment and threatintel HBase tables.
> This effort builds on the work in:
> https://issues.apache.org/jira/browse/METRON-678
> and
> https://issues.apache.org/jira/browse/METRON-682
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