Add DCAE configuration parsing tools

Add DCAE configurations parsing classes.
Add corresponding unit test codes.

Change-Id: I7711ede272d470af9a596539691ac224cf96fd5d
Issue-ID: HOLMES-25
Signed-off-by: Guangrong Fu <fu.guangrong@zte.com.cn>

4 files changed, 235 insertions, 0 deletions

diff --git a/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/DcaeConfigurations.java b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/DcaeConfigurations.java
new file mode 100644
index 0000000..b08261f
--- /dev/null
+++ b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/DcaeConfigurations.java
@@ -0,0 +1,58 @@
+/**

+ * Copyright 2017 ZTE Corporation.

+ *

+ * 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 org.onap.holmes.common.dcae.entity;

+

+import java.util.ArrayList;

+import java.util.HashMap;

+import java.util.List;

+import java.util.Map;

+import lombok.NoArgsConstructor;

+

+@NoArgsConstructor

+public class DcaeConfigurations extends HashMap<String, Object>{

+    private Map<String, SecurityInfo> streamsPublishes = new HashMap<>();

+    private Map<String, SecurityInfo> streamsSubscribes = new HashMap<>();

+    private List<Rule> rules = new ArrayList<>();

+

+    public void addDefaultRule(Rule rule) {

+        if (null == rule) {

+            return;

+        }

+

+        this.rules.add(rule);

+    }

+

+    public List<Rule> getDefaultRules() {

+        return this.rules;

+    }

+

+    public SecurityInfo addPubSecInfo(String key, SecurityInfo value) {

+        return this.streamsPublishes.put(key, value);

+    }

+

+    public SecurityInfo getPubSecInfo(String key) {

+        return this.streamsPublishes.get(key);

+    }

+

+    public SecurityInfo addSubSecInfo(String key, SecurityInfo value) {

+        return this.streamsSubscribes.put(key, value);

+    }

+

+    public SecurityInfo getSubSecInfo(String key) {

+        return this.streamsSubscribes.get(key);

+    }

+}

diff --git a/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/Rule.java b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/Rule.java
new file mode 100644
index 0000000..4ff1d05
--- /dev/null
+++ b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/Rule.java
@@ -0,0 +1,29 @@
+/**

+ * Copyright 2017 ZTE Corporation.

+ *

+ * 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 org.onap.holmes.common.dcae.entity;

+

+import lombok.AllArgsConstructor;

+import lombok.Getter;

+import lombok.Setter;

+

+@Getter

+@Setter

+@AllArgsConstructor

+public class Rule {

+    private String name;

+    private String contents;

+}

diff --git a/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/SecurityInfo.java b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/SecurityInfo.java
new file mode 100644
index 0000000..6c6fa56
--- /dev/null
+++ b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/entity/SecurityInfo.java
@@ -0,0 +1,39 @@
+/**

+ * Copyright 2017 ZTE Corporation.

+ *

+ * 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 org.onap.holmes.common.dcae.entity;

+

+import lombok.Getter;

+import lombok.Setter;

+

+@Getter

+@Setter

+public class SecurityInfo {

+    private String type = "message_router";

+    private String aafPassword;

+    private String aafUsername;

+    private boolean secureTopic = false;

+    private DmaapInfo dmaapInfo = new DmaapInfo();

+

+    @Getter

+    @Setter

+    public class DmaapInfo {

+        private String location;

+        private String clientId;

+        private String clientRole;

+        private String topicUrl;

+    }

+}

diff --git a/holmes-actions/src/main/java/org/onap/holmes/common/dcae/utils/DcaeConfigurationParser.java b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/utils/DcaeConfigurationParser.java
new file mode 100644
index 0000000..260b26a
--- /dev/null
+++ b/holmes-actions/src/main/java/org/onap/holmes/common/dcae/utils/DcaeConfigurationParser.java
@@ -0,0 +1,109 @@
+/*

+ * Copyright 2017 ZTE Corporation.

+ *

+ * 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 org.onap.holmes.common.dcae.utils;

+

+import java.util.Arrays;

+import java.util.List;

+import java.util.Map.Entry;

+import java.util.Set;

+import java.util.stream.Stream;

+import net.sf.json.JSONObject;

+import org.apache.commons.lang3.StringUtils;

+import org.onap.holmes.common.dcae.entity.DcaeConfigurations;

+import org.onap.holmes.common.dcae.entity.Rule;

+import org.onap.holmes.common.dcae.entity.SecurityInfo;

+import org.onap.holmes.common.exception.CorrelationException;

+

+public class DcaeConfigurationParser {

+

+    private static final List<String> OBJECT_ATTRS = Arrays

+            .asList(new String[]{"streams_subscribes", "streams_publishes", "services_calls", "services_provides"});

+

+    public static DcaeConfigurations parse(String jsonStr) throws CorrelationException {

+        if (StringUtils.isEmpty(jsonStr)) {

+            throw new CorrelationException(

+                    "Can not resolve configurations from DCAE. The configuration string is empty");

+        }

+

+        DcaeConfigurations ret = new DcaeConfigurations();

+

+        JSONObject jsonObject = null;

+        try {

+            jsonObject = JSONObject.fromObject(jsonStr);

+        } catch (Exception e) {

+            throw new CorrelationException(e.getMessage(), e);

+        }

+

+        fillInRules(ret, jsonObject);

+        fillInPublishesInfo(ret, jsonObject);

+

+        if (jsonObject.containsKey("streams_subscribes")) {

+

+        }

+

+        JSONObject finalJsonObject = jsonObject;

+        Stream.of(jsonObject.keySet().toArray(new String[0]))

+                .filter(key -> !OBJECT_ATTRS.contains(key))

+                .forEach(key -> ret.put(key.toString(), finalJsonObject.getString(String.valueOf(key))));

+        return ret;

+    }

+

+    private static void fillInPublishesInfo(DcaeConfigurations ret, JSONObject jsonObject) {

+        if (jsonObject.containsKey("streams_publishes")) {

+            JSONObject publishes = jsonObject.getJSONObject("streams_publishes");

+            for (Object key : publishes.keySet()) {

+                ret.addPubSecInfo((String) key,

+                        createSecurityInfo((String) key, publishes.getJSONObject((String) key)));

+            }

+        }

+    }

+

+    private static SecurityInfo createSecurityInfo(String key, JSONObject entity) {

+        SecurityInfo securityInfo = new SecurityInfo();

+        securityInfo.setType(entity.getString("type"));

+        if (!entity.get("aaf_password").equals("null")) {

+            securityInfo.setAafPassword(entity.getString("aaf_password"));

+        }

+        if (!entity.get("aaf_username").equals("null")) {

+            securityInfo.setAafUsername(entity.getString("aaf_username"));

+        }

+        securityInfo.setSecureTopic(!key.endsWith("unsecure"));

+        fillInDmaapInfo(securityInfo, entity.getJSONObject("dmaap_info"));

+        return securityInfo;

+    }

+

+    private static void fillInDmaapInfo(SecurityInfo securityInfo, JSONObject jsonDmaapInfo) {

+        SecurityInfo.DmaapInfo dmaapInfo = securityInfo.getDmaapInfo();

+        dmaapInfo.setLocation(jsonDmaapInfo.getString("location"));

+        dmaapInfo.setTopicUrl(jsonDmaapInfo.getString("topic_url"));

+        if (!jsonDmaapInfo.get("client_id").equals("null")) {

+            dmaapInfo.setClientId(jsonDmaapInfo.getString("client_id"));

+        }

+        if (!jsonDmaapInfo.get("client_role").equals("null")) {

+            dmaapInfo.setClientRole(jsonDmaapInfo.getString("client_role"));

+        }

+    }

+

+    private static void fillInRules(DcaeConfigurations ret, JSONObject jsonObject) {

+        Set<Entry<String, Object>> entries = jsonObject.entrySet();

+        for (Entry<String, Object> entry : entries) {

+            if (entry.getKey().startsWith("holmes.default.rule")) {

+                ret.addDefaultRule(new Rule(entry.getKey(), (String) entry.getValue()));

+            }

+        }

+    }

+}