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/*-
* ============LICENSE_START=======================================================
* ONAP-PDP-REST
* ================================================================================
* Copyright (C) 2019 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.onap.policy.pdp.rest.api.services;
import com.att.research.xacml.api.pap.PAPException;
import com.att.research.xacml.util.XACMLProperties;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.util.Collection;
import java.util.List;
import java.util.Properties;
import java.util.Set;
import java.util.UUID;
import java.util.stream.Collectors;
import org.onap.policy.api.ConfigNameRequest;
import org.onap.policy.common.logging.flexlogger.FlexLogger;
import org.onap.policy.common.logging.flexlogger.Logger;
import org.onap.policy.pdp.rest.XACMLPdpLoader;
import org.springframework.http.HttpStatus;
public class ListPolicyService {
private static Logger logger = FlexLogger.getLogger(ListPolicyService.class.getName());
private Collection<String> results = null;
private HttpStatus status = HttpStatus.BAD_REQUEST;
private ConfigNameRequest configRequestParameters = null;
private String requestId = null;
public ListPolicyService() {
// Default Constructor
}
/**
* Instantiates a new list policy service.
*
* @param configRequestParameters the config request parameters
*/
public ListPolicyService(final ConfigNameRequest configRequestParameters) {
requestId = UUID.randomUUID().toString();
this.configRequestParameters = configRequestParameters;
try {
run();
} catch (Exception e) {
logger.warn("ListPolicy - ERROR for request - " + requestId + ", " + e);
status = HttpStatus.BAD_REQUEST;
results = null;
}
logger.info("Result for listPolicy - " + configRequestParameters + ", for request - " + requestId
+ " - Response - " + results);
}
private void run() throws PAPException, IOException {
Properties currentProperties = new Properties();
try (InputStream is = Files.newInputStream(XACMLPdpLoader.getPDPPolicyCache())) {
currentProperties.load(is);
}
Set<String> listOfPolicies = XACMLProperties.getRootPolicyIDs(currentProperties);
results = filterList(listOfPolicies, configRequestParameters.getPolicyName());
status = HttpStatus.OK;
}
private List<String> filterList(Set<String> list, String regex) {
return list.stream().filter(s -> s.matches(regex)).collect(Collectors.toList());
}
public Collection<String> getResult() {
return results;
}
public HttpStatus getResponseCode() {
return status;
}
}
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