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/*-
* ============LICENSE_START=======================================================
* ECOMP Policy Engine
* ================================================================================
* Copyright (C) 2017 AT&T 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.openecomp.policy.pypdp;
import java.io.StringWriter;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.UUID;
import javax.json.JsonObject;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.openecomp.policy.api.ConfigRequestParameters;
import org.openecomp.policy.api.PolicyConfig;
import org.openecomp.policy.api.PolicyConfigException;
import org.openecomp.policy.api.PolicyConfigStatus;
import org.openecomp.policy.api.PolicyType;
import org.openecomp.policy.pypdp.model_pojo.PepConfigPolicyNameRequest;
import org.openecomp.policy.pypdp.model_pojo.PyPolicyConfig;
import org.openecomp.policy.std.StdPolicyConfig;
import org.openecomp.policy.std.StdPolicyEngine;
import org.w3c.dom.Document;
import org.openecomp.policy.xacml.api.XACMLErrorConstants;
import org.openecomp.policy.common.logging.eelf.PolicyLogger;
public class ConfigRequest {
private StdPolicyEngine pe;
public ConfigRequest(StdPolicyEngine pe){
this.pe= pe;
}
public Collection<PyPolicyConfig> run(ConfigRequestParameters pep, String requestID, String userID, String passcode) {
PolicyLogger.debug("... Request Params : \n"
+ "configName " + pep.getConfigName() + "\n"
+ "ecompName" + pep.getEcompName() + "\n"
+ "policyName" + pep.getPolicyName() + "\n");
StdPolicyConfig policyConfig = new StdPolicyConfig();
Collection<PyPolicyConfig> result = new ArrayList<PyPolicyConfig>();
// construct a UUID from the request string
if(pep.getRequestID()==null){
UUID requestUUID = null;
if (requestID != null && !requestID.isEmpty()) {
try {
requestUUID = UUID.fromString(requestID);
}
catch (IllegalArgumentException e) {
requestUUID = UUID.randomUUID();
PolicyLogger.info("Generated Random UUID: " + requestUUID.toString());
}
}
pep.setRequestID(requestUUID);
}
try {
PolicyLogger.debug("\n\n calling PEP.. ");
Collection<PolicyConfig> pConfigs = pe.configRequest(pep, userID, passcode);
for(PolicyConfig pConfig: pConfigs){
PyPolicyConfig pyPolicyConfig = checkResponse(pConfig);
result.add(pyPolicyConfig);
}
return result;
} catch(Exception e){
policyConfig.setConfigStatus(e.getMessage(), PolicyConfigStatus.CONFIG_NOT_FOUND);
PyPolicyConfig pyPolicyConfig = checkResponse(policyConfig);
result.add(pyPolicyConfig);
return result;
}
}
public Collection<PyPolicyConfig> run(PepConfigPolicyNameRequest pep, String requestID, String userID, String passcode) {
PolicyLogger.debug("... Request Params : \n"
+ "policyName" + pep.getPolicyName() + "\n");
StdPolicyConfig policyConfig = new StdPolicyConfig();
Collection<PyPolicyConfig> result = new ArrayList<PyPolicyConfig>();
// construct a UUID from the request string
UUID requestUUID = null;
if (requestID != null && !requestID.isEmpty()) {
try {
requestUUID = UUID.fromString(requestID);
}
catch (IllegalArgumentException e) {
requestUUID = UUID.randomUUID();
PolicyLogger.info("Generated Random UUID: " + requestUUID.toString());
}
}
if(pep.getPolicyName()!= null && !pep.getPolicyName().isEmpty()) {
try {
Collection<PolicyConfig> pConfigs = pe.configPolicyName(pep.getPolicyName(), requestUUID, userID, passcode);
for(PolicyConfig pConfig: pConfigs){
PyPolicyConfig pyPolicyConfig = checkResponse(pConfig);
result.add(pyPolicyConfig);
}
return result;
} catch (PolicyConfigException e) {
policyConfig.setConfigStatus(e.getMessage(), PolicyConfigStatus.CONFIG_NOT_FOUND);
PyPolicyConfig pyPolicyConfig = checkResponse(policyConfig);
result.add(pyPolicyConfig);
return result;
}
}
else {
policyConfig.setConfigStatus(XACMLErrorConstants.ERROR_DATA_ISSUE + "PolicyFile Name is empty", PolicyConfigStatus.CONFIG_NOT_FOUND);
PyPolicyConfig pyPolicyConfig = checkResponse(policyConfig);
result.add(pyPolicyConfig);
return result;
}
}
public PyPolicyConfig checkResponse(PolicyConfig pConfig) {
PyPolicyConfig policyConfig = new PyPolicyConfig();
policyConfig.setPolicyConfigMessage(pConfig.getPolicyConfigMessage());
policyConfig.setPolicyConfigStatus(pConfig.getPolicyConfigStatus());
policyConfig.setType(pConfig.getType());
policyConfig.setPolicyName(pConfig.getPolicyName());
policyConfig.setMatchingConditions(pConfig.getMatchingConditions());
policyConfig.setResponseAttributes(pConfig.getResponseAttributes());
policyConfig.setPolicyVersion(pConfig.getPolicyVersion());
if (pConfig.getPolicyConfigStatus().equals(PolicyConfigStatus.CONFIG_RETRIEVED)) {
PolicyType policyType = policyConfig.getType();
if(policyType.equals(PolicyType.PROPERTIES)) {
Properties properties = pConfig.toProperties();
Map<String, String> propVal = new HashMap<String, String>();
for(String name: properties.stringPropertyNames()) {
propVal.put(name, properties.getProperty(name));
}
policyConfig.setProperty(propVal);
} else if(policyType.equals(PolicyType.OTHER)) {
String other = pConfig.toOther();
policyConfig.setConfig(other);
} else if (policyType.equals(PolicyType.JSON)) {
JsonObject json = pConfig.toJSON();
policyConfig.setConfig(json.toString());
} else if (policyType.equals(PolicyType.XML)) {
Document document = pConfig.toXML();
DOMSource domSource = new DOMSource(document);
StringWriter writer = new StringWriter();
StreamResult result = new StreamResult(writer);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer;
try {
transformer = tf.newTransformer();
transformer.transform(domSource, result);
policyConfig.setConfig(writer.toString());
} catch (TransformerException e) {
policyConfig.setConfig(null);
policyConfig.setPolicyConfigMessage(XACMLErrorConstants.ERROR_SCHEMA_INVALID + "XML error in the Configuration. " + e.getMessage());
policyConfig.setPolicyConfigStatus(PolicyConfigStatus.CONFIG_NOT_FOUND);
}
}
} else {
policyConfig.setConfig(null);
}
return policyConfig;
}
}
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