1 files changed, 384 insertions, 0 deletions
diff --git a/src/main/java/org/onap/music/client/MusicRestClient.java b/src/main/java/org/onap/music/client/MusicRestClient.java
new file mode 100644
index 00000000..93a2e12b
--- /dev/null
+++ b/src/main/java/org/onap/music/client/MusicRestClient.java
@@ -0,0 +1,384 @@
+/*
+ * ============LICENSE_START==========================================
+ * org.onap.music
+ * ===================================================================
+ *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
+ *  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.music.client;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Random;
+import javax.ws.rs.core.MediaType;
+import org.onap.music.datastore.jsonobjects.JsonDelete;
+import org.onap.music.datastore.jsonobjects.JsonInsert;
+import org.onap.music.datastore.jsonobjects.JsonKeySpace;
+import org.onap.music.datastore.jsonobjects.JsonTable;
+import org.onap.music.main.MusicUtil;
+import com.sun.jersey.api.client.Client;
+import com.sun.jersey.api.client.ClientResponse;
+import com.sun.jersey.api.client.WebResource;
+import com.sun.jersey.api.client.config.ClientConfig;
+import com.sun.jersey.api.client.config.DefaultClientConfig;
+import com.sun.jersey.api.json.JSONConfiguration;
+
+public class MusicRestClient {
+    String[] musicNodes;
+
+    public MusicRestClient(String[] musicNodes) {
+        this.musicNodes = musicNodes;
+    }
+
+    public MusicRestClient(String oneMusicNode) {
+        musicNodes = new String[1];
+        this.musicNodes[0] = oneMusicNode;
+    }
+
+    public String getMusicNodeURL() {
+        String musicurl = "http://" + getMusicNodeIp() + ":8080/MUSIC/rest";
+        return musicurl;
+    }
+
+    private String getMusicNodeIp() {
+        Random r = new Random();
+        int index = r.nextInt(musicNodes.length);
+        return musicNodes[index];
+    }
+
+    public void createKeyspace(String keyspaceName) {
+        Map<String, Object> replicationInfo = new HashMap<String, Object>();
+        replicationInfo.put("class", "SimpleStrategy");
+        replicationInfo.put("replication_factor", 1);
+        String durabilityOfWrites = "false";
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "eventual");
+        org.onap.music.datastore.jsonobjects.JsonKeySpace jsonKp = new JsonKeySpace();
+        jsonKp.setConsistencyInfo(consistencyInfo);
+        jsonKp.setDurabilityOfWrites(durabilityOfWrites);
+        jsonKp.setReplicationInfo(replicationInfo);
+
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+
+        WebResource webResource = client.resource(getMusicNodeURL() + "/keyspaces/" + keyspaceName);
+
+        ClientResponse response = webResource.accept("application/json").type("application/json")
+                        .post(ClientResponse.class, jsonKp);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+
+    }
+
+    public void createStringMapTable(String keyspaceName, String tableName,
+                    Map<String, String> fields) {
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "eventual");
+
+        JsonTable jtab = new JsonTable();
+        jtab.setFields(fields);
+        jtab.setConsistencyInfo(consistencyInfo);
+
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+        String url = getMusicNodeURL() + "/keyspaces/" + keyspaceName + "/tables/" + tableName;
+        WebResource webResource = client.resource(url);
+
+        ClientResponse response = webResource.accept("application/json").type("application/json")
+                        .post(ClientResponse.class, jtab);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+
+    }
+
+    public void checkMusicVersion() {
+        Client client = Client.create();
+
+        WebResource webResource = client.resource(getMusicNodeURL() + "/version");
+
+        ClientResponse response = webResource.accept("text/plain").get(ClientResponse.class);
+
+        if (response.getStatus() != 200) {
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+        }
+
+        String output = response.getEntity(String.class);
+    }
+
+    public void createRow(String keyspaceName, String tableName, Map<String, Object> values) {
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "eventual");
+
+        JsonInsert jIns = new JsonInsert();
+        jIns.setValues(values);
+        jIns.setConsistencyInfo(consistencyInfo);
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+
+        String url = getMusicNodeURL() + "/keyspaces/" + keyspaceName + "/tables/" + tableName
+                        + "/rows";
+        WebResource webResource = client.resource(url);
+
+        ClientResponse response = webResource.accept("application/json").type("application/json")
+                        .post(ClientResponse.class, jIns);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus() + "url:"
+                            + url + "values:" + values);
+
+
+    }
+
+    private void basicUpdateRow(String keyspaceName, String tableName, String primaryKeyName,
+                    String primaryKeyValue, Map<String, Object> values,
+                    Map<String, String> consistencyInfo) {
+        JsonInsert jIns = new JsonInsert();
+        jIns.setValues(values);
+        jIns.setConsistencyInfo(consistencyInfo);
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+        String url = getMusicNodeURL() + "/keyspaces/" + keyspaceName + "/tables/" + tableName
+                        + "/rows?" + primaryKeyName + "=" + primaryKeyValue;
+        WebResource webResource = client.resource(url);
+
+        ClientResponse response = webResource.accept("application/json").type("application/json")
+                        .put(ClientResponse.class, jIns);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus() + "url:"
+                            + url + " values:" + values);
+
+    }
+
+    public void updateEntry(String keyspaceName, String tableName, String primaryKeyName,
+                    String primaryKeyValue, Map<String, Object> values) {
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "eventual");
+        basicUpdateRow(keyspaceName, tableName, primaryKeyName, primaryKeyValue, values,
+                        consistencyInfo);
+    }
+
+    public void deleteEntry(String keyspaceName, String tableName, String primaryKeyName,
+                    String primaryKeyValue) {
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "eventual");
+
+        JsonDelete jDel = new JsonDelete();
+        jDel.setConsistencyInfo(consistencyInfo);
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+        String url = getMusicNodeURL() + "/keyspaces/" + keyspaceName + "/tables/" + tableName
+                        + "/rows?" + primaryKeyName + "=" + primaryKeyValue;
+        WebResource webResource = client.resource(url);
+
+        ClientResponse response = webResource.accept("application/json").type("application/json")
+                        .delete(ClientResponse.class, jDel);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException(
+                            "Failed : HTTP error code : " + response.getStatus() + "url:" + url);
+
+    }
+
+    public Map<String, Object> readRow(String keyspaceName, String tableName, String primaryKeyName,
+                    String primaryKeyValue) {
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+        String url = getMusicNodeURL() + "/keyspaces/" + keyspaceName + "/tables/" + tableName
+                        + "/rows?" + primaryKeyName + "=" + primaryKeyValue;
+        WebResource webResource = client.resource(url);
+
+        ClientResponse response = webResource.accept("application/json").get(ClientResponse.class);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+
+        Map<String, Object> output = response.getEntity(Map.class);
+        return output;
+    }
+
+    public Map<String, Object> readAllRows(String keyspaceName, String tableName) {
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+        String url = getMusicNodeURL() + "/keyspaces/" + keyspaceName + "/tables/" + tableName
+                        + "/rows";
+        WebResource webResource = client.resource(url);
+
+        ClientResponse response = webResource.accept("application/json").get(ClientResponse.class);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+
+        Map<String, Object> output = response.getEntity(Map.class);
+        return output;
+    }
+
+
+    public void dropKeySpace(String keyspaceName) {
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "eventual");
+
+        JsonKeySpace jsonKp = new JsonKeySpace();
+        jsonKp.setConsistencyInfo(consistencyInfo);
+
+        ClientConfig clientConfig = new DefaultClientConfig();
+
+        clientConfig.getFeatures().put(JSONConfiguration.FEATURE_POJO_MAPPING, Boolean.TRUE);
+
+        Client client = Client.create(clientConfig);
+
+        WebResource webResource = client.resource(getMusicNodeURL() + "/keyspaces/" + keyspaceName);
+
+        ClientResponse response =
+                        webResource.type("application/json").delete(ClientResponse.class, jsonKp);
+
+        if (response.getStatus() < 200 || response.getStatus() > 299)
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+    }
+
+    public String createLock(String primaryKeyValue) {
+        Client client = Client.create();
+        String msg = getMusicNodeURL() + "/locks/create/" + primaryKeyValue;
+        WebResource webResource = client.resource(msg);
+
+        WebResource.Builder wb = webResource.accept(MediaType.TEXT_PLAIN);
+
+        ClientResponse response = wb.post(ClientResponse.class);
+
+        if (response.getStatus() != 200) {
+            throw new RuntimeException(
+                            "Failed : HTTP error code : " + response.getStatus() + "url:" + msg);
+        }
+
+        String output = response.getEntity(String.class);
+
+        return output;
+    }
+
+    public boolean acquireLock(String lockId) {
+        Client client = Client.create();
+        String msg = getMusicNodeURL() + "/locks/acquire/" + lockId;
+        WebResource webResource = client.resource(msg);
+
+
+        WebResource.Builder wb = webResource.accept(MediaType.TEXT_PLAIN);
+
+        ClientResponse response = wb.get(ClientResponse.class);
+
+        if (response.getStatus() != 200) {
+            throw new RuntimeException(
+                            "Failed : HTTP error code : " + response.getStatus() + "url:" + msg);
+        }
+
+        String output = response.getEntity(String.class);
+        Boolean status = Boolean.parseBoolean(output);
+        return status;
+    }
+
+    public void releaseLock(String lockId) {
+        Client client = Client.create();
+        WebResource webResource = client.resource(getMusicNodeURL() + "/locks/release/" + lockId);
+
+        ClientResponse response = webResource.delete(ClientResponse.class);
+
+
+        if (response.getStatus() != 204) {
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+        }
+    }
+
+
+    public void updateRowAtomically(String keyspaceName, String tableName, String primaryKeyName,
+                    String primaryKeyValue, Map<String, Object> values) {
+        /*
+         * create lock for the candidate. The music API dictates that the lock name must be of the
+         * form keyspacename.tableName.primaryKeyName
+         */
+
+        String lockName = keyspaceName + "." + tableName + "." + primaryKeyValue;
+        String lockId = createLock(lockName);
+        while (acquireLock(lockId) != true);
+
+
+        Map<String, String> consistencyInfo = new HashMap<String, String>();
+        consistencyInfo.put("type", "atomic");
+        consistencyInfo.put("lockId", lockId);
+
+        basicUpdateRow(keyspaceName, tableName, primaryKeyName, primaryKeyValue, values,
+                        consistencyInfo);
+
+        // release lock now that the operation is done
+        releaseLock(lockId);
+
+    }
+
+    public String getMusicId() {
+
+        Client client = Client.create();
+
+        WebResource webResource = client.resource(getMusicNodeURL() + "/nodeId");
+        ClientResponse response = webResource.accept("text/plain").get(ClientResponse.class);
+
+        if (response.getStatus() != 200) {
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+        }
+
+        String output = response.getEntity(String.class);
+        return output;
+    }
+
+    public void deleteRowAtomically(String keyspaceName, String tableName, String primaryKeyName,
+                    String primaryKeyValue, Map<String, Object> values) {
+
+    }
+
+    public void deleteLock(String lockName) {
+        Client client = Client.create();
+        WebResource webResource = client.resource(getMusicNodeURL() + "/locks/delete/" + lockName);
+
+        ClientResponse response = webResource.delete(ClientResponse.class);
+
+
+        if (response.getStatus() != 204) {
+            throw new RuntimeException("Failed : HTTP error code : " + response.getStatus());
+        }
+    }
+}
+