1 files changed, 313 insertions, 0 deletions
diff --git a/music-core/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java b/music-core/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java
new file mode 100644
index 00000000..988ba3a8
--- /dev/null
+++ b/music-core/src/main/java/org/onap/music/datastore/jsonobjects/JsonDelete.java
@@ -0,0 +1,313 @@
+/*
+ * ============LICENSE_START==========================================
+ * org.onap.music
+ * ===================================================================
+ *  Copyright (c) 2017 AT&T Intellectual Property
+ * ===================================================================
+ *  Modifications Copyright (c) 2019 Samsung
+ * ===================================================================
+ *  Modifications Copyright (C) 2019 IBM 
+ * ===================================================================
+ *  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.datastore.jsonobjects;
+
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.core.MultivaluedMap;
+import javax.ws.rs.core.Response.Status;
+
+import org.onap.music.datastore.Condition;
+import org.onap.music.datastore.MusicDataStoreHandle;
+import org.onap.music.datastore.PreparedQueryObject;
+import org.onap.music.eelf.logging.EELFLoggerDelegate;
+import org.onap.music.eelf.logging.format.AppMessages;
+import org.onap.music.eelf.logging.format.ErrorSeverity;
+import org.onap.music.eelf.logging.format.ErrorTypes;
+import org.onap.music.exceptions.MusicQueryException;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicUtil;
+
+import com.datastax.driver.core.DataType;
+import com.datastax.driver.core.TableMetadata;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
+import io.swagger.annotations.ApiModel;
+import io.swagger.annotations.ApiModelProperty;
+
+@ApiModel(value = "JsonTable", description = "Json model for delete")
+@JsonIgnoreProperties(ignoreUnknown = true)
+public class JsonDelete {
+
+    private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(JsonDelete.class);
+    
+    private List<String> columns = null;
+    private Map<String, String> consistencyInfo;
+    private Map<String, Object> conditions;
+    private String ttl;
+    private String timestamp;
+    private String keyspaceName;
+    private String tableName;
+    private StringBuilder rowIdString;
+    private String primarKeyValue;
+
+
+    @ApiModelProperty(value = "Conditions")
+    public Map<String, Object> getConditions() {
+        return conditions;
+    }
+
+    public void setConditions(Map<String, Object> conditions) {
+        this.conditions = conditions;
+    }
+
+    @ApiModelProperty(value = "Consistency level", allowableValues = "eventual,critical,atomic")
+    public Map<String, String> getConsistencyInfo() {
+        return consistencyInfo;
+    }
+
+    public void setConsistencyInfo(Map<String, String> consistencyInfo) {
+        this.consistencyInfo = consistencyInfo;
+    }
+
+    @ApiModelProperty(value = "Column values")
+    public List<String> getColumns() {
+        return columns;
+    }
+
+    public void setColumns(List<String> columns) {
+        this.columns = columns;
+    }
+
+
+    @ApiModelProperty(value = "Time to live information")
+    public String getTtl() {
+        return ttl;
+    }
+
+    public void setTtl(String ttl) {
+        this.ttl = ttl;
+    }
+
+    @ApiModelProperty(value = "Time stamp")
+    public String getTimestamp() {
+        return timestamp;
+    }
+
+    public void setTimestamp(String timestamp) {
+        this.timestamp = timestamp;
+    }
+    
+    public String getKeyspaceName() {
+        return keyspaceName;
+    }
+
+    public void setKeyspaceName(String keyspaceName) {
+        this.keyspaceName = keyspaceName;
+    }
+
+    public String getTableName() {
+        return tableName;
+    }
+
+    public void setTableName(String tableName) {
+        this.tableName = tableName;
+    }
+
+    public StringBuilder getRowIdString() {
+        return rowIdString;
+    }
+
+    public void setRowIdString(StringBuilder rowIdString) {
+        this.rowIdString = rowIdString;
+    }
+
+    public String getPrimarKeyValue() {
+        return primarKeyValue;
+    }
+
+    public void setPrimarKeyValue(String primarKeyValue) {
+        this.primarKeyValue = primarKeyValue;
+    }
+
+    
+    public PreparedQueryObject genDeletePreparedQueryObj(MultivaluedMap<String, String> rowParams) throws MusicQueryException {
+        if (logger.isDebugEnabled()) {
+            logger.debug("Coming inside genUpdatePreparedQueryObj method " + this.getKeyspaceName());
+            logger.debug("Coming inside genUpdatePreparedQueryObj method " + this.getTableName());
+        }
+        
+        PreparedQueryObject queryObject = new PreparedQueryObject();
+        
+        if((this.getKeyspaceName() == null || this.getKeyspaceName().isEmpty()) 
+                || (this.getTableName() == null || this.getTableName().isEmpty())){
+
+            
+            throw new MusicQueryException("one or more path parameters are not set, please check and try again",
+                     Status.BAD_REQUEST.getStatusCode());
+        }
+        
+        EELFLoggerDelegate.mdcPut("keyspace", "( "+this.getKeyspaceName()+" ) ");
+        
+        if(this == null) {
+            logger.error(EELFLoggerDelegate.errorLogger,"Required HTTP Request body is missing.", AppMessages.MISSINGDATA  ,ErrorSeverity.WARN, ErrorTypes.DATAERROR);
+
+            throw new MusicQueryException("Required HTTP Request body is missing.",
+                     Status.BAD_REQUEST.getStatusCode());
+        }
+        StringBuilder columnString = new StringBuilder();
+
+        int counter = 0;
+        List<String> columnList = this.getColumns();
+        if (columnList != null) {
+            for (String column : columnList) {
+                columnString.append(column);
+                if (counter != columnList.size() - 1)
+                    columnString.append(",");
+                counter = counter + 1;
+            }
+        }
+
+        // get the row specifier
+        RowIdentifier rowId = null;
+        try {
+            rowId = getRowIdentifier(this.getKeyspaceName(), this.getTableName(), rowParams, queryObject);
+            this.setRowIdString(rowId.rowIdString);
+            this.setPrimarKeyValue(rowId.primarKeyValue);
+            if(rowId == null || rowId.primarKeyValue.isEmpty()) {
+
+                throw new MusicQueryException("Mandatory WHERE clause is missing. Please check the input request.", 
+                        Status.BAD_REQUEST.getStatusCode());
+            }
+        } catch (MusicServiceException ex) {
+            logger.error(EELFLoggerDelegate.errorLogger,ex, AppMessages.UNKNOWNERROR  ,ErrorSeverity.WARN, ErrorTypes
+                .GENERALSERVICEERROR, ex);
+            /*return response.status(Status.BAD_REQUEST).entity(new JsonResponse(ResultType.FAILURE).setError(ex.getMessage()).toMap()).build();*/
+            throw new MusicQueryException(AppMessages.UNKNOWNERROR.toString(), Status.BAD_REQUEST.getStatusCode());
+        }
+        String rowSpec = rowId.rowIdString.toString();
+
+        if ((columnList != null) && (!rowSpec.isEmpty())) {
+            queryObject.appendQueryString("DELETE " + columnString + " FROM " + this.getKeyspaceName() + "."
+                            + this.getTableName() + " WHERE " + rowSpec + ";");
+        }
+
+        if ((columnList == null) && (!rowSpec.isEmpty())) {
+            queryObject.appendQueryString("DELETE FROM " + this.getKeyspaceName() + "." + this.getTableName() + " WHERE "
+                            + rowSpec + ";");
+        }
+
+        if ((columnList != null) && (rowSpec.isEmpty())) {
+            queryObject.appendQueryString(
+                            "DELETE " + columnString + " FROM " + this.getKeyspaceName() + "." + rowSpec + ";");
+        }
+        // get the conditional, if any
+        Condition conditionInfo;
+        if (this.getConditions() == null) {
+            conditionInfo = null;
+        } else {
+            // to avoid parsing repeatedly, just send the select query to
+            // obtain row
+            PreparedQueryObject selectQuery = new PreparedQueryObject();
+            selectQuery.appendQueryString("SELECT *  FROM " + this.getKeyspaceName() + "." + this.getTableName() + " WHERE "
+                + rowId.rowIdString + ";");
+            selectQuery.addValue(rowId.primarKeyValue);
+            conditionInfo = new Condition(this.getConditions(), selectQuery);
+        }
+
+        String consistency = this.getConsistencyInfo().get("type");
+
+
+        if(consistency.equalsIgnoreCase(MusicUtil.EVENTUAL) && this.getConsistencyInfo().get("consistency")!=null) {
+            if(MusicUtil.isValidConsistency(this.getConsistencyInfo().get("consistency"))) {
+                queryObject.setConsistency(this.getConsistencyInfo().get("consistency"));
+            } else {
+                throw new MusicQueryException("Invalid Consistency type", Status.BAD_REQUEST.getStatusCode());
+            }
+        }
+        
+        queryObject.setOperation("delete");
+        
+        return queryObject;
+    }    
+    
+    
+    /**
+    *
+    * @param keyspace
+    * @param tablename
+    * @param rowParams
+    * @param queryObject
+    * @return
+    * @throws MusicServiceException
+    */
+   private RowIdentifier getRowIdentifier(String keyspace, String tablename,
+       MultivaluedMap<String, String> rowParams, PreparedQueryObject queryObject)
+       throws MusicServiceException {
+       StringBuilder rowSpec = new StringBuilder();
+       int counter = 0;
+       TableMetadata tableInfo = MusicDataStoreHandle.returnColumnMetadata(keyspace, tablename);
+       if (tableInfo == null) {
+           logger.error(EELFLoggerDelegate.errorLogger,
+               "Table information not found. Please check input for table name= "
+               + keyspace + "." + tablename);
+           throw new MusicServiceException(
+               "Table information not found. Please check input for table name= "
+               + keyspace + "." + tablename);
+       }
+       StringBuilder primaryKey = new StringBuilder();
+       for (MultivaluedMap.Entry<String, List<String>> entry : rowParams.entrySet()) {
+           String keyName = entry.getKey();
+           List<String> valueList = entry.getValue();
+           String indValue = valueList.get(0);
+           DataType colType = null;
+           Object formattedValue = null;
+           try {
+               colType = tableInfo.getColumn(entry.getKey()).getType();
+               formattedValue = MusicUtil.convertToActualDataType(colType, indValue);
+           } catch (Exception e) {
+               logger.error(EELFLoggerDelegate.errorLogger,e);
+           }
+           if(tableInfo.getPrimaryKey().get(0).getName().equals(entry.getKey())) {
+               primaryKey.append(indValue);
+           }
+           rowSpec.append(keyName + "= ?");
+           queryObject.addValue(formattedValue);
+           if (counter != rowParams.size() - 1) {
+               rowSpec.append(" AND ");
+           }
+           counter = counter + 1;
+       }
+       return new RowIdentifier(primaryKey.toString(), rowSpec, queryObject);
+    }
+   
+    private class RowIdentifier {
+       private String primarKeyValue;
+       private StringBuilder rowIdString;
+       @SuppressWarnings("unused")
+       public PreparedQueryObject queryObject; // the string with all the row
+                                               // identifiers separated by AND
+
+       public RowIdentifier(String primaryKeyValue, StringBuilder rowIdString,
+                       PreparedQueryObject queryObject) {
+           this.primarKeyValue = primaryKeyValue;
+           this.rowIdString = rowIdString;
+           this.queryObject = queryObject;
+       }
+   }
+}