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+/**
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+ * Licensed to the Apache Software Foundation (ASF) under one
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+ * or more contributor license agreements. See the NOTICE file
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+ * distributed with this work for additional information
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+ * regarding copyright ownership. The ASF licenses this file
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+ * to you under the Apache License, Version 2.0 (the
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+ * "License"); you may not use this file except in compliance
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+ * with the License. You may obtain a copy of the License at
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+ *
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+ * http://www.apache.org/licenses/LICENSE-2.0
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+ *
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+ * Unless required by applicable law or agreed to in writing, software
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+ * distributed under the License is distributed on an "AS IS" BASIS,
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+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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+ * See the License for the specific language governing permissions and
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+ * limitations under the License.
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+ */
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+package org.apache.ambari.server.state.stack.upgrade;
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+
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+import java.util.ArrayList;
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+import java.util.Collection;
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+import java.util.List;
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+import java.util.Map;
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+import java.util.Map.Entry;
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+import java.util.regex.Pattern;
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+
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+import org.apache.ambari.server.AmbariException;
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+import org.apache.ambari.server.api.services.AmbariMetaInfo;
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+import org.apache.ambari.server.controller.internal.OperatingSystemResourceProvider;
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+import org.apache.ambari.server.controller.internal.RepositoryResourceProvider;
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+import org.apache.ambari.server.controller.internal.RepositoryVersionResourceProvider;
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+import org.apache.ambari.server.orm.entities.OperatingSystemEntity;
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+import org.apache.ambari.server.orm.entities.RepositoryEntity;
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+import org.apache.ambari.server.state.RepositoryInfo;
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+import org.apache.ambari.server.state.stack.UpgradePack;
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+import org.apache.commons.lang.StringUtils;
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+import org.slf4j.Logger;
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+import org.slf4j.LoggerFactory;
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+
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+import com.google.common.collect.ArrayListMultimap;
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+import com.google.common.collect.Multimap;
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+import com.google.gson.Gson;
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+import com.google.gson.JsonArray;
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+import com.google.gson.JsonElement;
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+import com.google.gson.JsonObject;
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+import com.google.gson.JsonParser;
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+import com.google.inject.Inject;
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+import com.google.inject.Singleton;
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+
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+/**
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+ * Provides helper methods to manage repository versions.
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+ */
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+@Singleton
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+public class RepositoryVersionHelper {
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+
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+ private static final Logger LOG = LoggerFactory.getLogger(RepositoryVersionHelper.class);
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+
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+ @Inject
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+ private Gson gson;
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+
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+ @Inject(optional = true)
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+ private AmbariMetaInfo ambariMetaInfo;
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+
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+ /**
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+ * Parses operating systems json to a list of entities. Expects json like:
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+ * <pre>
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+ * [
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+ * {
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+ * "repositories":[
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+ * {
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+ * "Repositories/base_url":"http://s3.amazonaws.com/dev.hortonworks.com/HDP/centos5/2.x/updates/2.2.0.0",
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+ * "Repositories/repo_name":"HDP-UTILS",
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+ * "Repositories/repo_id":"HDP-UTILS-1.1.0.20"
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+ * },
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+ * {
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+ * "Repositories/base_url":"http://s3.amazonaws.com/dev.hortonworks.com/HDP/centos5/2.x/updates/2.2.0.0",
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+ * "Repositories/repo_name":"HDP",
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+ * "Repositories/repo_id":"HDP-2.2"
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+ * }
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+ * ],
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+ * "OperatingSystems/os_type":"redhat5"
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+ * }
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+ * ]
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+ * </pre>
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+ * @param repositoriesJson operating systems json
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+ * @return list of operating system entities
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+ * @throws Exception if any kind of json parsing error happened
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+ */
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+ public List<OperatingSystemEntity> parseOperatingSystems(String repositoriesJson) throws Exception {
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+ final List<OperatingSystemEntity> operatingSystems = new ArrayList<OperatingSystemEntity>();
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+ final JsonArray rootJson = new JsonParser().parse(repositoriesJson).getAsJsonArray();
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+ for (JsonElement operatingSystemJson: rootJson) {
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+ final OperatingSystemEntity operatingSystemEntity = new OperatingSystemEntity();
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+ operatingSystemEntity.setOsType(operatingSystemJson.getAsJsonObject().get(OperatingSystemResourceProvider.OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID).getAsString());
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+ for (JsonElement repositoryJson: operatingSystemJson.getAsJsonObject().get(RepositoryVersionResourceProvider.SUBRESOURCE_REPOSITORIES_PROPERTY_ID).getAsJsonArray()) {
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+ final RepositoryEntity repositoryEntity = new RepositoryEntity();
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+ repositoryEntity.setBaseUrl(repositoryJson.getAsJsonObject().get(RepositoryResourceProvider.REPOSITORY_BASE_URL_PROPERTY_ID).getAsString());
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+ repositoryEntity.setName(repositoryJson.getAsJsonObject().get(RepositoryResourceProvider.REPOSITORY_REPO_NAME_PROPERTY_ID).getAsString());
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+ repositoryEntity.setRepositoryId(repositoryJson.getAsJsonObject().get(RepositoryResourceProvider.REPOSITORY_REPO_ID_PROPERTY_ID).getAsString());
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+ operatingSystemEntity.getRepositories().add(repositoryEntity);
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+ }
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+ operatingSystems.add(operatingSystemEntity);
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+ }
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+ return operatingSystems;
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+ }
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+
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+ /**
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+ * Serializes repository info to json for storing to DB.
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+ * Produces json like:
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+ * <pre>
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+ * [
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+ * {
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+ * "repositories":[
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+ * {
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+ * "Repositories/base_url":"http://s3.amazonaws.com/dev.hortonworks.com/HDP/centos5/2.x/updates/2.2.0.0",
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+ * "Repositories/repo_name":"HDP-UTILS",
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+ * "Repositories/repo_id":"HDP-UTILS-1.1.0.20"
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+ * },
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+ * {
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+ * "Repositories/base_url":"http://s3.amazonaws.com/dev.hortonworks.com/HDP/centos5/2.x/updates/2.2.0.0",
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+ * "Repositories/repo_name":"HDP",
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+ * "Repositories/repo_id":"HDP-2.2"
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+ * }
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+ * ],
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+ * "OperatingSystems/os_type":"redhat5"
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+ * }
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+ * ]
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+ * </pre>
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+ *
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+ * @param repositories list of repository infos
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+ * @return serialized list of operating systems
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+ */
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+ public String serializeOperatingSystems(List<RepositoryInfo> repositories) {
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+ final JsonArray rootJson = new JsonArray();
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+ final Multimap<String, RepositoryInfo> operatingSystems = ArrayListMultimap.create();
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+ for (RepositoryInfo repository: repositories) {
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+ operatingSystems.put(repository.getOsType(), repository);
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+ }
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+ for (Entry<String, Collection<RepositoryInfo>> operatingSystem : operatingSystems.asMap().entrySet()) {
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+ final JsonObject operatingSystemJson = new JsonObject();
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+ final JsonArray repositoriesJson = new JsonArray();
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+ for (RepositoryInfo repository : operatingSystem.getValue()) {
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+ final JsonObject repositoryJson = new JsonObject();
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+ repositoryJson.addProperty(RepositoryResourceProvider.REPOSITORY_BASE_URL_PROPERTY_ID, repository.getBaseUrl());
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+ repositoryJson.addProperty(RepositoryResourceProvider.REPOSITORY_REPO_NAME_PROPERTY_ID, repository.getRepoName());
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+ repositoryJson.addProperty(RepositoryResourceProvider.REPOSITORY_REPO_ID_PROPERTY_ID, repository.getRepoId());
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+ repositoriesJson.add(repositoryJson);
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+ }
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+ operatingSystemJson.add(RepositoryVersionResourceProvider.SUBRESOURCE_REPOSITORIES_PROPERTY_ID, repositoriesJson);
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+ operatingSystemJson.addProperty(OperatingSystemResourceProvider.OPERATING_SYSTEM_OS_TYPE_PROPERTY_ID, operatingSystem.getKey());
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+ rootJson.add(operatingSystemJson);
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+ }
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+ return gson.toJson(rootJson);
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+ }
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+
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+ /**
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+ * Scans the given stack for upgrade packages which can be applied to update the cluster to given repository version.
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+ *
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+ * @param stackName stack name
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+ * @param stackVersion stack version
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+ * @param repositoryVersion target repository version
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+ * @return upgrade pack name
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+ * @throws AmbariException if no upgrade packs suit the requirements
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+ */
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+ public String getUpgradePackageName(String stackName, String stackVersion, String repositoryVersion) throws AmbariException {
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+ final Map<String, UpgradePack> upgradePacks = ambariMetaInfo.getUpgradePacks(stackName, stackVersion);
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+ for (Entry<String, UpgradePack> upgradePackEntry : upgradePacks.entrySet()) {
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+ final UpgradePack upgradePack = upgradePackEntry.getValue();
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+ final String upgradePackName = upgradePackEntry.getKey();
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+ // check that upgrade pack has <target> node
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+ if (StringUtils.isBlank(upgradePack.getTarget())) {
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+ LOG.error("Upgrade pack " + upgradePackName + " is corrupted, it should contain <target> node");
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+ continue;
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+ }
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+
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+ // check that upgrade pack can be applied to selected stack
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+ // converting 2.2.*.* -> 2\.2(\.\d+)?(\.\d+)?(-\d+)?
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+ String regexPattern = upgradePack.getTarget();
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+ regexPattern = regexPattern.replaceAll("\\.", "\\\\."); // . -> \.
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+ regexPattern = regexPattern.replaceAll("\\\\\\.\\*", "(\\\\\\.\\\\d+)?"); // \.* -> (\.\d+)?
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+ regexPattern = regexPattern.concat("(-\\d+)?");
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+ if (Pattern.matches(regexPattern, repositoryVersion)) {
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+ return upgradePackName;
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+ }
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+ }
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+ throw new AmbariException("There were no suitable upgrade packs for stack " + stackName + " " + stackVersion);
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+ }
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+
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+ /**
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+ * Scans the given stack for upgrade packages which can be applied to update the cluster to given repository version.
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+ * Returns NONE if there were no suitable packages.
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+ *
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+ * @param stackName stack name
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+ * @param stackVersion stack version
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+ * @param repositoryVersion target repository version
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+ * @return upgrade pack name or NONE
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+ */
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+ public String getUpgradePackageNameSafe(String stackName, String stackVersion, String repositoryVersion) {
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+ try {
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+ return getUpgradePackageName(stackName, stackVersion, repositoryVersion);
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+ } catch (AmbariException ex) {
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+ return "NONE";
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+ }
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+ }
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+}
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Lisnichenko Dmitro