2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2018 Ericsson. All rights reserved.
4 * Copyright (C) 2019 Nordix Foundation.
5 * Modifications Copyright (C) 2020 AT&T Inc.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
19 * SPDX-License-Identifier: Apache-2.0
20 * ============LICENSE_END=========================================================
23 package org.onap.policy.distribution.reception.decoding.policy.file;
25 import java.io.IOException;
26 import java.util.ArrayList;
27 import java.util.Collection;
28 import java.util.Enumeration;
29 import java.util.zip.ZipEntry;
30 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;
42 * This class extracts policy files from a CSAR file.
44 * @author Ram Krishna Verma (ram.krishna.verma@ericsson.com)
46 public class PolicyDecoderFileInCsarToPolicy implements PolicyDecoder<Csar, ToscaEntity> {
48 private PolicyDecoderFileInCsarToPolicyParameterGroup decoderParameters;
49 private StandardCoder coder;
55 public void configure(final String parameterGroupName) {
56 decoderParameters = ParameterService.get(parameterGroupName);
57 coder = new StandardCoder();
64 public boolean canHandle(final PolicyInput policyInput) {
65 return policyInput.getClass().isAssignableFrom(Csar.class);
72 public Collection<ToscaEntity> decode(final Csar csar) throws PolicyDecodingException {
73 final Collection<ToscaEntity> policyList = new ArrayList<>();
75 try (ZipFile zipFile = new ZipFile(csar.getCsarPath())) {
76 final Enumeration<? extends ZipEntry> entries = zipFile.entries();
77 while (entries.hasMoreElements()) {
78 final ZipEntry entry = entries.nextElement();
79 if (entry.getName().contains(decoderParameters.getPolicyTypeFileName())
80 || entry.getName().contains(decoderParameters.getPolicyFileName())) {
81 final ToscaServiceTemplate policy =
82 coder.decode(zipFile.getInputStream(entry), ToscaServiceTemplate.class);
83 policyList.add(policy);
86 } catch (final IOException | CoderException exp) {
87 throw new PolicyDecodingException("Failed decoding the policy", exp);