2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2018 Ericsson. All rights reserved.
4 * Copyright (C) 2019 Nordix Foundation.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.distribution.reception.decoding.policy.file;
24 import java.io.IOException;
25 import java.util.ArrayList;
26 import java.util.Collection;
27 import java.util.Enumeration;
28 import java.util.zip.ZipEntry;
29 import java.util.zip.ZipFile;
31 import org.onap.policy.common.parameters.ParameterService;
32 import org.onap.policy.common.utils.coder.CoderException;
33 import org.onap.policy.common.utils.coder.StandardCoder;
34 import org.onap.policy.distribution.model.Csar;
35 import org.onap.policy.distribution.model.PolicyInput;
36 import org.onap.policy.distribution.reception.decoding.PolicyDecoder;
37 import org.onap.policy.distribution.reception.decoding.PolicyDecodingException;
38 import org.onap.policy.models.tosca.authorative.concepts.ToscaEntity;
39 import org.onap.policy.models.tosca.authorative.concepts.ToscaServiceTemplate;
40 import org.slf4j.Logger;
41 import org.slf4j.LoggerFactory;
44 * This class extracts policy files from a CSAR file.
46 * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
48 public class PolicyDecoderFileInCsarToPolicy implements PolicyDecoder<Csar, ToscaEntity> {
50 private static final Logger LOGGER = LoggerFactory.getLogger(PolicyDecoderFileInCsarToPolicy.class);
51 private PolicyDecoderFileInCsarToPolicyParameterGroup decoderParameters;
52 private StandardCoder coder;
58 public void configure(final String parameterGroupName) {
59 decoderParameters = ParameterService.get(parameterGroupName);
60 coder = new StandardCoder();
67 public boolean canHandle(final PolicyInput policyInput) {
68 return policyInput.getClass().isAssignableFrom(Csar.class);
75 public Collection<ToscaEntity> decode(final Csar csar) throws PolicyDecodingException {
76 final Collection<ToscaEntity> policyList = new ArrayList<>();
78 try (ZipFile zipFile = new ZipFile(csar.getCsarPath())) {
79 final Enumeration<? extends ZipEntry> entries = zipFile.entries();
80 while (entries.hasMoreElements()) {
81 final ZipEntry entry = entries.nextElement();
82 if (entry.getName().contains(decoderParameters.getPolicyTypeFileName())
83 || entry.getName().contains(decoderParameters.getPolicyFileName())) {
84 final ToscaServiceTemplate policy =
85 coder.decode(zipFile.getInputStream(entry), ToscaServiceTemplate.class);
86 policyList.add(policy);
89 } catch (final IOException | CoderException exp) {
90 final String message = "Failed decoding the policy";
91 LOGGER.error(message, exp);
92 throw new PolicyDecodingException(message, exp);