2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved.
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.
18 * ============LICENSE_END=========================================================
21 package org.onap.ccsdk.sli.plugins.restconfapicall;
23 import org.onap.ccsdk.sli.core.sli.SvcLogicException;
24 import org.onap.ccsdk.sli.plugins.restapicall.HttpMethod;
25 import org.onap.ccsdk.sli.plugins.yangserializers.dfserializer.YangParameters;
26 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
27 import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
28 import org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource;
29 import org.opendaylight.yangtools.yang.parser.spi.meta.ReactorException;
30 import org.opendaylight.yangtools.yang.parser.stmt.reactor.CrossSourceStatementReactor;
33 import java.io.IOException;
35 import java.net.URISyntaxException;
36 import java.nio.file.Path;
37 import java.nio.file.Paths;
38 import java.util.ArrayList;
39 import java.util.Collection;
40 import java.util.LinkedList;
41 import java.util.List;
44 import static org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode.getParameters;
45 import static org.onap.ccsdk.sli.plugins.restapicall.RestapiCallNode.parseParam;
46 import static org.opendaylight.yangtools.yang.model.repo.api.StatementParserMode.DEFAULT_MODE;
47 import static org.opendaylight.yangtools.yang.model.repo.api.YangTextSchemaSource.forFile;
48 import static org.opendaylight.yangtools.yang.parser.rfc7950.reactor.RFC7950Reactors.defaultReactor;
49 import static org.opendaylight.yangtools.yang.parser.rfc7950.repo.YangStatementStreamSource.create;
52 * Utilities for restconf api call node.
54 public final class RestconfApiUtils {
56 static final String RES_CODE = "response-code";
58 static final String HTTP_REQ ="httpRequest";
60 static final String RES_PRE = "responsePrefix";
62 static final String RES_MSG = "response-message";
64 static final String HEADER = "header.";
66 static final String COMMA = ",";
68 static final String COLON = ":";
70 static final String HTTP_RES = "httpResponse";
72 static final String REST_API_URL = "restapiUrl";
74 static final String UPDATED_URL = "URL was set to";
76 static final String COMM_FAIL = "Failed to communicate with host %s." +
77 "Request will be re-attempted using the host %s.";
79 static final String RETRY_COUNT = "This is retry attempt %d out of %d";
81 static final String RETRY_FAIL = "Retry attempt has failed. No further " +
82 "retry shall be attempted, calling setFailureResponseStatus";
84 static final String NO_MORE_RETRY = "Could not attempt retry";
86 static final String MAX_RETRY_ERR = "Maximum retries reached, calling " +
87 "setFailureResponseStatus";
89 static final String ATTEMPTS_MSG = "%d attempts were made out of %d " +
92 static final String REQ_ERR = "Error sending the request: ";
94 private static final String SLASH = "/";
96 private static final String DIR_PATH = "dirPath";
98 private static final String URL_SYNTAX = "The following URL cannot be " +
101 private static final String YANG = ".yang";
103 private static final String YANG_FILE_ERR = "Unable to parse the YANG " +
107 private RestconfApiUtils() {
111 * Returns the YANG parameters after parsing it from the map.
113 * @param paramMap parameters map
114 * @return YANG parameters
115 * @throws SvcLogicException when parsing of parameters map fail
117 static YangParameters getYangParameters(Map<String, String> paramMap)
118 throws SvcLogicException {
119 YangParameters param = (YangParameters) getParameters(
120 paramMap, new YangParameters());
121 param.dirPath = parseParam(paramMap, DIR_PATH, false, null);
126 * Parses the restconf URL and gives the YANG path from it, which can be
127 * used to get schema node. If it is a PUT operation, then a node must be
128 * reduced from the url to make it always point to the parent.
130 * @param url restconf URL
131 * @param method HTTP operation
132 * @return YANG path pointing to parent
133 * @throws SvcLogicException when parsing the URL fails
135 public static String parseUrl(String url, HttpMethod method)
136 throws SvcLogicException {
140 } catch (URISyntaxException e) {
141 throw new SvcLogicException(URL_SYNTAX + url, e);
144 String path = uri.getPath();
145 path = getParsedPath(path);
150 * Returns the path which contains only the schema nodes.
153 * @return path representing schema
155 private static String getParsedPath(String path) {
157 if (path.contains(COLON)) {
158 String[] p = path.split(COLON);
159 if (p[0].contains(SLASH)) {
160 int slash = p[0].lastIndexOf(SLASH);
161 firstHalf = p[0].substring(slash + 1);
165 return firstHalf + COLON + p[1];
171 * Returns the schema context of the YANG files present in a directory.
173 * @param di directory path
174 * @return YANG schema context
175 * @throws SvcLogicException when YANG file reading fails
177 static SchemaContext getSchemaCtxFromDir(String di)
178 throws SvcLogicException {
179 Path d = Paths.get(di);
180 File dir = d.toFile();
181 List<File> yangFiles = new LinkedList<>();
182 getYangFiles(dir, yangFiles);
183 final Collection<YangStatementStreamSource> sources =
184 new ArrayList<>(yangFiles.size());
185 for (File file : yangFiles) {
187 sources.add(create(forFile(file)));
188 } catch (IOException | YangSyntaxErrorException e) {
189 throw new SvcLogicException(YANG_FILE_ERR + e.getMessage(), e);
193 final CrossSourceStatementReactor.BuildAction reactor = defaultReactor()
194 .newBuild(DEFAULT_MODE).addSources(sources);
196 return reactor.buildEffective();
197 } catch (ReactorException e) {
198 throw new SvcLogicException(YANG_FILE_ERR + e.getMessage(), e);
203 * Returns all the YANG files present in a directory recursively.
205 * @param dir path of the directory
206 * @param yangFiles list of YANG files
208 private static void getYangFiles(File dir, List<File> yangFiles) {
210 File[] files = dir.listFiles();
212 processFiles(files, yangFiles);
218 * Processes all the obtained files by isolating all the YANG files from
219 * all the directory of the given path recursively.
221 * @param files files in the given path
222 * @param yangFiles YANG files list
224 private static void processFiles(File[] files, List<File> yangFiles) {
225 for (File file : files) {
226 if (file.isFile() && file.getName().endsWith(YANG)) {
228 } else if (file.isDirectory()) {
229 getYangFiles(file, yangFiles);
235 * Returns the updated XML request message by adding root node to it.
237 * @param req XML request
238 * @param nodeName root node name
239 * @param modNs module namespace of the root node
240 * @return updated XML request message
242 static String getUpdatedXmlReq(String req, String nodeName, String modNs) {
243 String rootNode = "\n<" + nodeName + " xmlns=\"" + modNs.toString() +
245 req = req.replaceFirst("\n", rootNode);
246 req = req + "</" + nodeName + ">";
247 return req.replaceAll(">\\s+<", "><");