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/*
* Copyright © 2017-2018 AT&T Intellectual Property.
* Modifications Copyright © 2018 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.
*/
package org.onap.ccsdk.config.assignment.processor;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.collections.MapUtils;
import org.apache.commons.lang3.StringUtils;
import org.onap.ccsdk.config.assignment.service.ConfigAssignmentUtils;
import org.onap.ccsdk.config.data.adaptor.service.ConfigResourceService;
import org.onap.ccsdk.config.model.ConfigModelConstant;
import org.onap.ccsdk.config.model.ConfigModelException;
import org.onap.ccsdk.config.model.ValidTypes;
import org.onap.ccsdk.config.model.data.ResourceAssignment;
import org.onap.ccsdk.config.model.data.dict.ResourceDefinition;
import org.onap.ccsdk.config.model.data.dict.SourcesDefinition;
import org.onap.ccsdk.config.model.service.ComponentNode;
import org.onap.ccsdk.config.model.utils.JsonUtils;
import org.onap.ccsdk.config.model.utils.ResourceAssignmentUtils;
import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
import org.onap.ccsdk.sli.core.sli.SvcLogicException;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.JsonNodeFactory;
import com.fasterxml.jackson.databind.node.ObjectNode;
public class DBResourceProcessor implements ComponentNode {
private static EELFLogger logger = EELFManager.getInstance().getLogger(DBResourceProcessor.class);
private ConfigResourceService configResourceService;
private Map<String, ResourceDefinition> dictionaries;
public DBResourceProcessor(ConfigResourceService configResourceService) {
this.configResourceService = configResourceService;
}
@Override
public Boolean preCondition(Map<String, String> inParams, SvcLogicContext ctx, Map<String, Object> componentContext)
throws SvcLogicException {
return Boolean.TRUE;
}
@Override
public void preProcess(Map<String, String> inParams, SvcLogicContext ctx, Map<String, Object> componentContext)
throws SvcLogicException {
// Auto-generated method stub
}
@Override
public void process(Map<String, String> inParams, SvcLogicContext ctx) throws SvcLogicException {
// Auto-generated method stub
}
@SuppressWarnings("unchecked")
@Override
public void process(Map<String, String> inParams, SvcLogicContext ctx, Map<String, Object> componentContext)
throws SvcLogicException {
try {
List<ResourceAssignment> batchResourceAssignment =
(List<ResourceAssignment>) componentContext.get(ConfigModelConstant.PROPERTY_RESOURCE_ASSIGNMENTS);
dictionaries =
(Map<String, ResourceDefinition>) componentContext.get(ConfigModelConstant.PROPERTY_DICTIONARIES);
if (CollectionUtils.isNotEmpty(batchResourceAssignment)) {
for (ResourceAssignment resourceAssignment : batchResourceAssignment) {
processResourceAssignment(ctx, componentContext, resourceAssignment);
}
}
} catch (Exception e) {
throw new SvcLogicException(String.format("DBResourceProcessor Exception : (%s)", e), e);
}
}
private void processResourceAssignment(SvcLogicContext ctx, Map<String, Object> componentContext,
ResourceAssignment resourceAssignment) throws SvcLogicException, ConfigModelException {
if (resourceAssignment != null) {
try {
validate(resourceAssignment);
// Check if It has Input
Object value = ConfigAssignmentUtils.getContextKeyValue(ctx, resourceAssignment.getName());
if (value != null) {
logger.info("db source template key ({}) found from input and value is ({})",
resourceAssignment.getName(), value);
ResourceAssignmentUtils.setResourceDataValue(componentContext, resourceAssignment, value);
return;
}
ResourceDefinition resourceDefinition = dictionaries.get(resourceAssignment.getDictionaryName());
SourcesDefinition sourceDb = resourceDefinition.getSources().get("db");
if (StringUtils.isBlank(sourceDb.getProperties().getQuery())) {
throw new SvcLogicException("db query property is missing");
}
String sql = sourceDb.getProperties().getQuery();
Map<String, String> inputKeyMapping = sourceDb.getProperties().getInputKeyMapping();
logger.info("Db dictionary information : ({}), ({}), ({})", sql, inputKeyMapping,
sourceDb.getProperties().getOutputKeyMapping());
Map<String, Object> namedParameters = populateNamedParameter(componentContext, inputKeyMapping);
logger.info("Parameter information : ({})", namedParameters);
List<Map<String, Object>> rows = configResourceService.query(sql, namedParameters);
if (rows != null && !rows.isEmpty()) {
processDBResults(ctx, componentContext, resourceAssignment, sourceDb, rows);
} else {
logger.warn("Failed to get db result for dictionary name ({}) the query ({})",
resourceAssignment.getDictionaryName(), sql);
}
// Check the value has populated for mandatory case
ResourceAssignmentUtils.assertTemplateKeyValueNotNull(componentContext, resourceAssignment);
} catch (Exception e) {
ResourceAssignmentUtils.setFailedResourceDataValue(componentContext, resourceAssignment,
e.getMessage());
throw new SvcLogicException(
String.format("Failed in template key (%s) assignments : (%s)", resourceAssignment, e), e);
}
} else {
// Do Nothing
}
}
private void validate(ResourceAssignment resourceAssignment) throws SvcLogicException {
if (resourceAssignment == null) {
throw new SvcLogicException("resource assignment is not defined");
}
if (StringUtils.isBlank(resourceAssignment.getName())) {
throw new SvcLogicException("resource assignment template key is not defined");
}
if (StringUtils.isBlank(resourceAssignment.getDictionaryName())) {
throw new SvcLogicException(
String.format("resource assignment dictionary name is not defined for template key (%s)",
resourceAssignment.getName()));
}
if (!ConfigModelConstant.SOURCE_DB.equalsIgnoreCase(resourceAssignment.getDictionarySource())) {
throw new SvcLogicException(String.format("resource assignment source is not db, it is (%s)",
resourceAssignment.getDictionarySource()));
}
ResourceDefinition resourceDefinition = dictionaries.get(resourceAssignment.getDictionaryName());
if (resourceDefinition == null) {
throw new SvcLogicException(String.format("missing resource dictionary definition for name (%s) ",
resourceAssignment.getDictionaryName()));
}
if (resourceDefinition.getSources() == null || resourceDefinition.getSources().get("db") == null) {
throw new SvcLogicException(String.format("missing resource dictionary db source definition for name (%s) ",
resourceAssignment.getDictionaryName()));
}
SourcesDefinition sourceDb = resourceDefinition.getSources().get("db");
if (StringUtils.isBlank(sourceDb.getProperties().getQuery())) {
throw new SvcLogicException(String.format("Failed to get request Query for dictionary (%s)",
resourceAssignment.getDictionaryName()));
}
}
private Map<String, Object> populateNamedParameter(Map<String, Object> componentContext,
Map<String, String> inputKeyMapping) {
Map<String, Object> namedParameters = new HashMap<>();
if (MapUtils.isNotEmpty(inputKeyMapping)) {
for (Map.Entry<String, String> mapping : inputKeyMapping.entrySet()) {
ResourceDefinition referenceDictionaryDefinition = dictionaries.get(mapping.getValue());
Object expressionValue =
ResourceAssignmentUtils.getDictionaryKeyValue(componentContext, referenceDictionaryDefinition);
logger.trace("Reference dictionary key ({}), value ({})", mapping.getKey(), expressionValue);
namedParameters.put(mapping.getKey(), expressionValue);
}
}
return namedParameters;
}
@SuppressWarnings("squid:S3776")
private void processDBResults(SvcLogicContext ctx, Map<String, Object> componentContext,
ResourceAssignment resourceAssignment, SourcesDefinition sourceDb, List<Map<String, Object>> rows)
throws SvcLogicException, ConfigModelException {
Map<String, String> outputKeyMapping = sourceDb.getProperties().getOutputKeyMapping();
String type = resourceAssignment.getProperty().getType();
String entrySchema = null;
logger.info("Response processing type({})", type);
// Primitive Types
if (ValidTypes.getPrimitivePropertType().contains(type)) {
Map<String, Object> row = rows.get(0);
String dbColumnName = outputKeyMapping.get(resourceAssignment.getDictionaryName());
Object dbColumnValue = row.get(dbColumnName);
ResourceAssignmentUtils.setResourceDataValue(componentContext, resourceAssignment, dbColumnValue);
} else if (ValidTypes.getListPropertType().contains(type)) {
// Array Types
if (resourceAssignment.getProperty().getEntrySchema() != null) {
entrySchema = resourceAssignment.getProperty().getEntrySchema().getType();
}
if (StringUtils.isNotBlank(entrySchema)) {
ArrayNode arrayNode = JsonNodeFactory.instance.arrayNode();
for (Map<String, Object> row : rows) {
if (ValidTypes.getPrimitivePropertType().contains(entrySchema)) {
String dbColumnName = outputKeyMapping.get(resourceAssignment.getDictionaryName());
Object dbColumnValue = row.get(dbColumnName);
// Add Array JSON
JsonUtils.populatePrimitiveValues(dbColumnValue, entrySchema, arrayNode);
} else {
ObjectNode arrayChildNode = JsonNodeFactory.instance.objectNode();
for (Map.Entry<String, String> mapping : outputKeyMapping.entrySet()) {
Object dbColumnValue = row.get(mapping.getKey());
String propertyTypeForDataType =
ConfigAssignmentUtils.getPropertyType(ctx, entrySchema, mapping.getKey());
JsonUtils.populatePrimitiveValues(mapping.getKey(), dbColumnValue, propertyTypeForDataType,
arrayChildNode);
}
arrayNode.add(arrayChildNode);
}
}
// Set the List of Complex Values
ResourceAssignmentUtils.setResourceDataValue(componentContext, resourceAssignment, arrayNode);
} else {
throw new SvcLogicException(String.format("Entry schema is not defined for dictionary (%s) info",
resourceAssignment.getDictionaryName()));
}
} else {
// Complex Types
Map<String, Object> row = rows.get(0);
ObjectNode objectNode = JsonNodeFactory.instance.objectNode();
for (Map.Entry<String, String> mapping : outputKeyMapping.entrySet()) {
Object dbColumnValue = row.get(mapping.getKey());
String propertyTypeForDataType = ConfigAssignmentUtils.getPropertyType(ctx, type, mapping.getKey());
JsonUtils.populatePrimitiveValues(mapping.getKey(), dbColumnValue, propertyTypeForDataType, objectNode);
}
ResourceAssignmentUtils.setResourceDataValue(componentContext, resourceAssignment, objectNode);
}
}
@Override
public void postProcess(Map<String, String> inParams, SvcLogicContext ctx, Map<String, Object> componentContext)
throws SvcLogicException {
// Auto-generated method stub
}
}
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