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authorkoblosz <sandra.koblosz@nokia.com>2018-05-22 17:13:35 +0200
committerkoblosz <sandra.koblosz@nokia.com>2018-06-18 16:07:48 +0200
commite0194fbb1f8291ca0c23cc68840097b8d33670e5 (patch)
tree428cfe803eb10bdf7098f9a5cd67157d78c8f640 /src/main/java/org
parentcea2e184ff50e91833efd23408d647ccb295e847 (diff)
Refactor DmaapPropertyReader
Issue-ID: DCAEGEN2-522 Signed-off-by: KOBLOSZ SANDRA <sandra.koblosz@nokia.com> Change-Id: I2d9928ff3ffeda0e204480f13e8c8bf91bddf912
Diffstat (limited to 'src/main/java/org')
-rw-r--r--src/main/java/org/onap/dcae/commonFunction/AnyNode.java188
-rw-r--r--src/main/java/org/onap/dcae/commonFunction/CambriaPublisherFactory.java19
-rw-r--r--src/main/java/org/onap/dcae/commonFunction/DmaapPropertyReader.java302
3 files changed, 306 insertions, 203 deletions
diff --git a/src/main/java/org/onap/dcae/commonFunction/AnyNode.java b/src/main/java/org/onap/dcae/commonFunction/AnyNode.java
new file mode 100644
index 00000000..b09a17a0
--- /dev/null
+++ b/src/main/java/org/onap/dcae/commonFunction/AnyNode.java
@@ -0,0 +1,188 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * PROJECT
+ * ================================================================================
+ * Copyright (C) 2018 Nokia Networks Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.commonFunction;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+import org.json.JSONTokener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+import java.util.Set;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+import java.util.stream.StreamSupport;
+
+/**
+ * This class is a wrapper for 2 most used entities of org.json lib: JSONArray and JSONObject and
+ * comprises utility methods for fast access of json structures without need to explicitly coerce between them.
+ * While using this, bear in mind it does not contain exception handling - it is assumed that when using, the parsed json structure is known.
+ *
+ * @author koblosz
+ */
+public class AnyNode {
+ private static final Logger LOGGER = LoggerFactory.getLogger(AnyNode.class);
+ private Object obj;
+
+ /**
+ * @param filePath
+ * @return
+ * @throws IOException
+ */
+ public static AnyNode parse(String filePath) throws IOException {
+ try (FileReader fr = new FileReader(filePath)) {
+ JSONTokener tokener = new JSONTokener(fr);
+ return new AnyNode(new JSONObject(tokener));
+ } catch (FileNotFoundException | JSONException e1) {
+ LOGGER.error("Could not find or parse file under path %s due to: %s", filePath, e1.toString());
+ e1.printStackTrace();
+ throw e1;
+ }
+ }
+
+ /**
+ * Returns keyset of underlying object. It is assumed that underlying object is of type org.json.JSONObject.
+ *
+ * @return Set of string keys present in underlying JSONObject
+ */
+ public Set<String> getKeys() {
+ return asJsonObject().keySet();
+ }
+
+ /**
+ * Returns value associated with specified key wrapped with AnyValue object. It is assumed that this is of type org.json.JSONObject.
+ *
+ * @param key A key string
+ * @return The AnyNode object associated with given key.
+ */
+ public AnyNode get(String key) {
+ return new AnyNode(asJsonObject().get(key));
+ }
+
+ /**
+ * Returns value under specified index wrapped with AnyValue object. It is assumed that this is of type org.json.JSONArray.
+ *
+ * @param idx An index of JSONArray
+ * @return The AnyNode object associated with given index.
+ */
+ public AnyNode get(int idx) {
+ return new AnyNode(asJsonArray().get(idx));
+ }
+
+ /**
+ * Returns int assuming this can be coerced to int.
+ */
+ public int asInt() {
+ return (int) this.obj;
+ }
+
+ /**
+ * Returns string representation of this. If it happens to have null, the value is treated as org.json.JSONObject.NULL and "null" string is returned then.
+ *
+ * @return A String
+ */
+ public String asString() {
+ return this.obj != JSONObject.NULL ? (String) this.obj : JSONObject.NULL.toString();
+ }
+
+ public String toString() {
+ return this.obj.toString();
+ }
+
+ /**
+ * Converts underlying object to String-to-Object map. It is assumed that underlying object is of type org.json.JSONObject.
+ *
+ * @return A map.
+ */
+ public Map<String, Object> asRawMap() {
+ return asJsonObject().toMap();
+ }
+
+ /**
+ * Returns optional of object under specified key, wrapped with AnyNode object. If underlying object is not of type org.json.JSONObject, then Optional.empty will be returned.
+ *
+ * @param key A key string
+ */
+ public Optional<AnyNode> getAsOptional(String key) {
+ AnyNode result = null;
+ try {
+ result = get(key);
+ } catch (JSONException ex) {
+ }
+ return Optional.ofNullable(result);
+ }
+
+ public JSONObject asJsonObject() {
+ return (JSONObject) this.obj;
+ }
+
+ /**
+ * Converts underlying object to map representation with map values wrapped with AnyNode object. It is assumed that underlying object is of type org.json.JSONObject.
+ */
+ public Map<String, AnyNode> asMap() {
+ Map<String, AnyNode> map = new HashMap<>();
+ getKeys().forEach(key -> map.put(key, get(key)));
+ return map;
+ }
+
+ /**
+ * Converts underlying object to map representation with map values wrapped with AnyNode object. It is assumed that underlying object is of type org.json.JSONObject.
+ */
+ public java.util.List<AnyNode> asList() {
+ return asStream().collect(Collectors.toList());
+ }
+
+ /**
+ * Converts this object to stream of underlying objects wrapped with AnyNode class. It is assumed that this is of type JSONArray.
+ */
+ public Stream<AnyNode> asStream() {
+ return StreamSupport.stream(((JSONArray) this.obj).spliterator(), false).map(AnyNode::new);
+ }
+
+ /**
+ * Checks if specified key is present in this. It is assumed that this is of type JSONObject.
+ */
+ public boolean hasKey(String key) {
+ return getAsOptional(key).isPresent();
+ }
+
+ /**
+ * Returns empty AnyNode (with null inside)
+ */
+ public static AnyNode nullValue() {
+ return new AnyNode(JSONObject.NULL.toString());
+ }
+
+ private JSONArray asJsonArray() {
+ return (JSONArray) this.obj;
+ }
+
+ private AnyNode(Object object) {
+ this.obj = object;
+ }
+
+}
diff --git a/src/main/java/org/onap/dcae/commonFunction/CambriaPublisherFactory.java b/src/main/java/org/onap/dcae/commonFunction/CambriaPublisherFactory.java
index 35d3e317..41230a14 100644
--- a/src/main/java/org/onap/dcae/commonFunction/CambriaPublisherFactory.java
+++ b/src/main/java/org/onap/dcae/commonFunction/CambriaPublisherFactory.java
@@ -23,6 +23,8 @@ import com.att.nsa.cambria.client.CambriaBatchingPublisher;
import com.att.nsa.cambria.client.CambriaClientBuilders;
import java.net.MalformedURLException;
import java.security.GeneralSecurityException;
+import java.util.Map;
+
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -33,21 +35,18 @@ class CambriaPublisherFactory {
public CambriaBatchingPublisher createCambriaPublisher(String streamId)
throws MalformedURLException, GeneralSecurityException {
String authpwd = null;
- String ueburl = DmaapPropertyReader.getInstance(CommonStartup.cambriaConfigFile).dmaap_hash
- .get(streamId + ".cambria.url");
+ DmaapPropertyReader reader = DmaapPropertyReader.getInstance(CommonStartup.cambriaConfigFile);
+ Map<String, String> dmaapProperties = reader.getDmaapProperties();
+ String ueburl = dmaapProperties.get(streamId + ".cambria.url");
if (ueburl == null) {
- ueburl = DmaapPropertyReader.getInstance(CommonStartup.cambriaConfigFile).dmaap_hash
- .get(streamId + ".cambria.hosts");
+ ueburl = dmaapProperties.get(streamId + ".cambria.hosts");
}
- String topic = DmaapPropertyReader.getInstance(CommonStartup.cambriaConfigFile)
- .getKeyValue(streamId + ".cambria.topic");
- String authuser = DmaapPropertyReader.getInstance(CommonStartup.cambriaConfigFile)
- .getKeyValue(streamId + ".basicAuthUsername");
+ String topic = reader.getKeyValue(streamId + ".cambria.topic");
+ String authuser = reader.getKeyValue(streamId + ".basicAuthUsername");
if (authuser != null) {
- authpwd = DmaapPropertyReader.getInstance(CommonStartup.cambriaConfigFile).dmaap_hash
- .get(streamId + ".basicAuthPassword");
+ authpwd = dmaapProperties.get(streamId + ".basicAuthPassword");
}
if ((authuser != null) && (authpwd != null)) {
diff --git a/src/main/java/org/onap/dcae/commonFunction/DmaapPropertyReader.java b/src/main/java/org/onap/dcae/commonFunction/DmaapPropertyReader.java
index dabd2b15..c0659aa6 100644
--- a/src/main/java/org/onap/dcae/commonFunction/DmaapPropertyReader.java
+++ b/src/main/java/org/onap/dcae/commonFunction/DmaapPropertyReader.java
@@ -20,204 +20,120 @@
package org.onap.dcae.commonFunction;
-import java.io.FileNotFoundException;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
-import java.io.FileReader;
+
import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
import java.util.HashMap;
+import java.util.List;
import java.util.Map;
-import java.util.Set;
-
-import com.google.gson.JsonArray;
-import com.google.gson.JsonElement;
-import com.google.gson.JsonIOException;
-import com.google.gson.JsonObject;
-import com.google.gson.JsonParser;
-import com.google.gson.JsonSyntaxException;
+import java.util.Objects;
+import java.util.stream.Collectors;
public class DmaapPropertyReader {
- private static final String HOST_URL = " HOST-URL:";
- private static final String TOPIC = "TOPIC:";
- private static final String CAMBRIA_URL = "cambria.url";
- private static final String CAMBRIA_HOSTS = "cambria.hosts";
- private static final String PWD = " PWD:";
- private static final String USER = " USER:";
- private static final String BASIC_AUTH_PASSWORD = "basicAuthPassword";
- private static final String BASIC_AUTH_USER_NAME = "basicAuthUsername";
- private static DmaapPropertyReader instance = null;
-
- private static final Logger log = LoggerFactory.getLogger(DmaapPropertyReader.class);
-
- public HashMap<String, String> dmaap_hash = new HashMap<>();
-
- public DmaapPropertyReader(String CambriaConfigFile) {
-
- FileReader fr = null;
- try {
- JsonElement root = null;
- fr = new FileReader(CambriaConfigFile);
- root = new JsonParser().parse(fr);
-
- // Check if dmaap config is handled by legacy controller/service
- // manager
- if (root.getAsJsonObject().has("channels")) {
- JsonArray jsonObject = (JsonArray) root.getAsJsonObject().get("channels");
-
- for (int i = 0; i < jsonObject.size(); i++) {
- log.debug(TOPIC + jsonObject.get(i).getAsJsonObject().get("cambria.topic") + HOST_URL
- + jsonObject.get(i).getAsJsonObject().get(CAMBRIA_URL) + " HOSTS:"
- + jsonObject.get(i).getAsJsonObject().get(CAMBRIA_HOSTS) + PWD
- + jsonObject.get(i).getAsJsonObject().get(BASIC_AUTH_PASSWORD) + USER
- + jsonObject.get(i).getAsJsonObject().get(BASIC_AUTH_USER_NAME) + " NAME:"
- + jsonObject.get(i).getAsJsonObject().get("name"));
-
- String convertedname = jsonObject.get(i).getAsJsonObject().get("name").toString().replace("\"", "");
- dmaap_hash.put(convertedname + ".cambria.topic",
- jsonObject.get(i).getAsJsonObject().get("cambria.topic").toString().replace("\"", ""));
-
- if (jsonObject.get(i).getAsJsonObject().get(CAMBRIA_HOSTS) != null) {
- dmaap_hash.put(convertedname + ".cambria.hosts",
- jsonObject.get(i).getAsJsonObject().get(CAMBRIA_HOSTS).toString().replace("\"", ""));
- }
- if (jsonObject.get(i).getAsJsonObject().get(CAMBRIA_URL) != null) {
- dmaap_hash.put(convertedname + ".cambria.url",
- jsonObject.get(i).getAsJsonObject().get(CAMBRIA_URL).toString().replace("\"", ""));
- }
- if (jsonObject.get(i).getAsJsonObject().get(BASIC_AUTH_PASSWORD) != null) {
- dmaap_hash.put(convertedname + ".basicAuthPassword", jsonObject.get(i).getAsJsonObject()
- .get(BASIC_AUTH_PASSWORD).toString().replace("\"", ""));
- }
- if (jsonObject.get(i).getAsJsonObject().get(BASIC_AUTH_USER_NAME) != null) {
- dmaap_hash.put(convertedname + ".basicAuthUsername", jsonObject.get(i).getAsJsonObject()
- .get(BASIC_AUTH_USER_NAME).toString().replace("\"", ""));
- }
-
- }
- } else {
-
- // Handing new format from controllergen2/config_binding_service
- JsonObject jsonObject = root.getAsJsonObject();
- Set<Map.Entry<String, JsonElement>> entries = jsonObject.entrySet();
-
- for (Map.Entry<String, JsonElement> entry : entries) {
-
- JsonElement topicurl = entry.getValue().getAsJsonObject().get("dmaap_info").getAsJsonObject()
- .get("topic_url");
- String[] urlParts = dmaapUrlSplit(topicurl.toString().replace("\"", ""));
-
- String mrTopic = null;
- String mrUrl = null;
- String[] hostport = null;
- String username = null;
- String userpwd = null;
-
- try {
-
- if (null != urlParts) {
- mrUrl = urlParts[2];
-
- // DCAE internal dmaap topic convention
- if ("events".equals(urlParts[3])) {
- mrTopic = urlParts[4];
- } else {
- // ONAP dmaap topic convention
- mrTopic = urlParts[3];
- hostport = mrUrl.split(":");
- }
-
- }
- } catch (NullPointerException e) {
- System.out.println("NullPointerException");
- e.getMessage();
- }
-
- if (entry.getValue().getAsJsonObject().has("aaf_username")) {
- username = entry.getValue().getAsJsonObject().get("aaf_username").toString().replace("\"", "");
- }
- if (entry.getValue().getAsJsonObject().has("aaf_password")) {
- userpwd = entry.getValue().getAsJsonObject().get("aaf_password").toString().replace("\"", "");
- }
- if (hostport == null) {
- log.debug(TOPIC + mrTopic + HOST_URL + mrUrl + PWD + userpwd + USER + username);
- } else {
- log.debug(TOPIC + mrTopic + HOST_URL + mrUrl + " HOSTS:" + hostport[0] + PWD
- + userpwd + USER + username + " NAME:" + entry.getKey());
- }
-
- dmaap_hash.put(entry.getKey() + ".cambria.topic", mrTopic);
-
- if (!(hostport == null)) {
- dmaap_hash.put(entry.getKey() + ".cambria.hosts", hostport[0]);
- }
-
- if (!(mrUrl == null)) {
- dmaap_hash.put(entry.getKey() + ".cambria.url", mrUrl);
- }
-
- if (!(username == null)) {
- dmaap_hash.put(entry.getKey() + ".basicAuthUsername", username);
- }
-
- if (!(userpwd == null)) {
- dmaap_hash.put(entry.getKey() + ".basicAuthPassword", userpwd);
- }
-
- }
-
- }
-
- } catch (JsonIOException | JsonSyntaxException |
-
- FileNotFoundException e1) {
- e1.printStackTrace();
- log.error("Problem loading Dmaap Channel configuration file: " + e1.toString());
- } finally {
- if (fr != null) {
- try {
- fr.close();
- } catch (IOException e) {
- log.error("Error closing file reader stream : " + e.toString());
- }
- }
- }
-
- }
-
- /***
- * Dmaap url structure pub - https://<dmaaphostname>:<port>/events/
- * <namespace>.<dmaapcluster>.<topic>, sub - https://<dmaaphostname>:
- * <port>/events/<namespace>.<dmaapcluster>.<topic>/G1/u1";
- *
- * Onap url structure pub - http://<dmaaphostname>:<port>/<unauthenticated>.
- * <topic>,
- */
-
- private String[] dmaapUrlSplit(String dmUrl) {
- String[] multUrls = dmUrl.split(",");
-
- StringBuffer newUrls = new StringBuffer();
- String[] urlParts = null;
- for (int i = 0; i < multUrls.length; i++) {
- urlParts = multUrls[i].split("/");
- if (i == 0) {
- newUrls = newUrls.append(urlParts[2]);
- } else {
- newUrls = newUrls.append(",").append(urlParts[2]);
- }
- }
- return urlParts;
- }
-
- public static synchronized DmaapPropertyReader getInstance(String channelConfig) {
- if (instance == null) {
- instance = new DmaapPropertyReader(channelConfig);
- }
- return instance;
- }
-
- public String getKeyValue(String hashKey) {
- return this.dmaap_hash.get(hashKey);
- }
-}
+
+ private static final Logger log = LoggerFactory.getLogger(DmaapPropertyReader.class);
+ private static final String CAMBRIA_TOPIC_KEY = "cambria.topic";
+ private static final String CAMBRIA_HOSTS_KEY = "cambria.hosts";
+ private static final String CAMBRIA_URL_KEY = "cambria.url";
+ private static final List<String> LEGACY_CHANNEL_MANDATORY_PARAMS = Lists.newArrayList(CAMBRIA_TOPIC_KEY, CAMBRIA_HOSTS_KEY, CAMBRIA_URL_KEY, "basicAuthPassword", "basicAuthUsername");
+ private static DmaapPropertyReader instance = null;
+ private final Map<String, String> dmaapProperties;
+
+ public DmaapPropertyReader(String cambriaConfigFilePath) {
+ this.dmaapProperties = DmaapPropertyReader.getProcessedDmaapProperties(cambriaConfigFilePath);
+ }
+
+ public Map<String, String> getDmaapProperties() {
+ return dmaapProperties;
+ }
+
+ public static synchronized DmaapPropertyReader getInstance(String channelConfig) {
+ if (instance == null) {
+ instance = new DmaapPropertyReader(channelConfig);
+ }
+ return instance;
+ }
+
+ public String getKeyValue(String hashKey) {
+ return dmaapProperties.get(hashKey);
+ }
+
+ private static Map<String, String> getProcessedDmaapProperties(String configFilePath) {
+ Map<String, String> transformedDmaapProperties = new HashMap<>();
+ try {
+ AnyNode root = AnyNode.parse(configFilePath);
+ if (root.hasKey("channels")) { // Check if dmaap config is handled by legacy controller/service/manager
+ transformedDmaapProperties = getLegacyDmaapPropertiesWithChannels(root.get("channels"));
+ } else {//Handing new format from controllergen2/config_binding_service
+ transformedDmaapProperties = getDmaapPropertiesWithInfoData(root);
+ }
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ return transformedDmaapProperties;
+ }
+
+ private static Map<String, String> getLegacyDmaapPropertiesWithChannels(AnyNode channelsNode) {
+ return channelsNode.asList().stream()
+ .map(DmaapPropertyReader::getTransformedMandatoryChannelProperties)
+ .flatMap(m -> m.entrySet().stream())
+ .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+ }
+
+ private static Map<String, String> getTransformedMandatoryChannelProperties(AnyNode channel) {
+ String prefix = channel.get("name").asString() + ".";
+ return channel.asMap().entrySet().stream().filter(el -> LEGACY_CHANNEL_MANDATORY_PARAMS.contains(el.getKey()) && !Objects.equals(el.getKey(), "name"))
+ .collect(Collectors.toMap(k -> prefix + k.getKey(), v -> v.getValue().asString().replace("\"", "")));
+ }
+
+ private static Map<String, String> getDmaapPropertiesWithInfoData(AnyNode root) {
+ return root.asMap().entrySet().stream()
+ .map(DmaapPropertyReader::getTransformedMandatoryInfoProperties).flatMap(m -> m.entrySet().stream())
+ .collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
+ }
+
+ private static Map<String, String> getTransformedMandatoryInfoProperties(Map.Entry<String, AnyNode> el) {
+ String prefix = el.getKey() + ".";
+ AnyNode val = el.getValue();
+ Map<String, String> map = Maps.newHashMap();
+ map.put(prefix + "basicAuthUsername", val.getAsOptional("aaf_username").orElse(AnyNode.nullValue()).asString().replace("\"", ""));
+ map.put(prefix + "basicAuthPassword", val.getAsOptional("aaf_password").orElse(AnyNode.nullValue()).asString().replace("\"", ""));
+ map.putAll(getParamsFromDmaapInfoTopicUrl(prefix, val.get("dmaap_info").get("topic_url").asString().replace("\"", "")));
+ return map;
+ }
+
+ /***
+ * Dmaap url structure pub - https://<dmaaphostname>:<port>/events/
+ * <namespace>.<dmaapcluster>.<topic>, sub - https://<dmaaphostname>:
+ * <port>/events/<namespace>.<dmaapcluster>.<topic>/G1/u1";
+ *
+ * Onap url structure pub - http://<dmaaphostname>:<port>/<unauthenticated>.
+ * <topic>,
+ */
+ private static Map<String, String> getParamsFromDmaapInfoTopicUrl(String keyPrefix, String topicUrl) {
+ Map<String, String> topicUrlParts = Maps.newHashMap();
+ try {
+ URL url = new URL(topicUrl);
+ topicUrlParts.put(keyPrefix + CAMBRIA_URL_KEY, url.getAuthority());
+ String[] pathParts = url.getPath().split("/");
+ if (pathParts.length > 2 && "events".equals(pathParts[1])) {
+ // DCAE internal dmaap topic convention
+ topicUrlParts.put(keyPrefix + CAMBRIA_TOPIC_KEY, pathParts[2]);
+ } else {
+ // ONAP dmaap topic convention
+ topicUrlParts.put(keyPrefix + CAMBRIA_TOPIC_KEY, pathParts[2]);
+ topicUrlParts.put(keyPrefix + CAMBRIA_HOSTS_KEY, url.getHost());
+ }
+ } catch (MalformedURLException e) {
+ log.error("Invalid URL found under topic_url key!", e);
+ e.printStackTrace();
+ }
+ return topicUrlParts;
+ }
+} \ No newline at end of file