org.apache.ambari.server.checks.InstallPackagesCheck.java Source code

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Here is the source code for org.apache.ambari.server.checks.InstallPackagesCheck.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
package org.apache.ambari.server.checks;

import java.text.MessageFormat;
import java.util.HashSet;
import java.util.LinkedHashSet;
import java.util.Set;

import org.apache.ambari.server.AmbariException;
import org.apache.ambari.server.controller.PrereqCheckRequest;
import org.apache.ambari.server.orm.entities.ClusterVersionEntity;
import org.apache.ambari.server.orm.entities.HostVersionEntity;
import org.apache.ambari.server.orm.entities.RepositoryVersionEntity;
import org.apache.ambari.server.state.Cluster;
import org.apache.ambari.server.state.Host;
import org.apache.ambari.server.state.MaintenanceState;
import org.apache.ambari.server.state.RepositoryVersionState;
import org.apache.ambari.server.state.StackId;
import org.apache.ambari.server.state.stack.PrereqCheckStatus;
import org.apache.ambari.server.state.stack.PrerequisiteCheck;
import org.apache.commons.lang.StringUtils;

import com.google.inject.Singleton;

/**
 * Checks if Install Packages needs to be re-run
 */
@Singleton
@UpgradeCheck(group = UpgradeCheckGroup.DEFAULT, order = 3.0f, required = true)
public class InstallPackagesCheck extends AbstractCheckDescriptor {

    /**
     * Constructor.
     */
    public InstallPackagesCheck() {
        super(CheckDescription.INSTALL_PACKAGES_CHECK);
    }

    @Override
    public void perform(PrerequisiteCheck prerequisiteCheck, PrereqCheckRequest request) throws AmbariException {
        final String clusterName = request.getClusterName();
        final Cluster cluster = clustersProvider.get().getCluster(clusterName);
        final StackId targetStackId = request.getTargetStackId();
        final String stackName = targetStackId.getStackName();
        final String repoVersion = request.getRepositoryVersion();

        final RepositoryVersionEntity rve = repositoryVersionDaoProvider.get().findByStackNameAndVersion(stackName,
                request.getRepositoryVersion());
        if (StringUtils.isBlank(rve.getVersion()) || !rve.getVersion().matches("^\\d+(\\.\\d+)*\\-\\d+$")) {
            String message = MessageFormat.format(
                    "The Repository Version {0} for Stack {1} must contain a \"-\" followed by a build number. "
                            + "Make sure that another registered repository does not have the same repo URL or "
                            + "shares the same build number. Next, try reinstalling the Repository Version.",
                    rve.getVersion(), rve.getStackVersion());
            prerequisiteCheck.getFailedOn().add("Repository Version " + rve.getVersion());
            prerequisiteCheck.setStatus(PrereqCheckStatus.FAIL);
            prerequisiteCheck.setFailReason(message);
            return;
        }

        final ClusterVersionEntity clusterVersion = clusterVersionDAOProvider.get()
                .findByClusterAndStackAndVersion(clusterName, targetStackId, repoVersion);
        final Set<String> failedHosts = new HashSet<String>();

        for (Host host : cluster.getHosts()) {
            if (host.getMaintenanceState(cluster.getClusterId()) != MaintenanceState.ON) {
                for (HostVersionEntity hve : hostVersionDaoProvider.get().findByHost(host.getHostName())) {
                    if (hve.getRepositoryVersion().getVersion().equals(request.getRepositoryVersion())
                            && hve.getState() == RepositoryVersionState.INSTALL_FAILED) {
                        failedHosts.add(host.getHostName());
                    }
                }
            }
        }

        if (!failedHosts.isEmpty()) {
            String message = MessageFormat.format(
                    "Hosts in cluster [{0},{1},{2},{3}] are in INSTALL_FAILED state because "
                            + "Install Packages had failed. Please re-run Install Packages, if necessary place following hosts "
                            + "in Maintenance mode: {4}",
                    cluster.getClusterName(), targetStackId.getStackName(), targetStackId.getStackVersion(),
                    repoVersion, StringUtils.join(failedHosts, ", "));
            prerequisiteCheck.setFailedOn(new LinkedHashSet<String>(failedHosts));
            prerequisiteCheck.setStatus(PrereqCheckStatus.FAIL);
            prerequisiteCheck.setFailReason(message);
        } else if (clusterVersion.getState() == RepositoryVersionState.INSTALL_FAILED) {
            String message = MessageFormat.format("Cluster [{0},{1},{2},{3}] is in INSTALL_FAILED state because "
                    + "Install Packages failed. Please re-run Install Packages even if you placed the failed hosts "
                    + "in Maintenance mode.", cluster.getClusterName(), targetStackId.getStackName(),
                    targetStackId.getStackVersion(), repoVersion);
            LinkedHashSet<String> failedOn = new LinkedHashSet<String>();
            failedOn.add(cluster.getClusterName());
            prerequisiteCheck.setFailedOn(failedOn);
            prerequisiteCheck.setStatus(PrereqCheckStatus.FAIL);
            prerequisiteCheck.setFailReason(message);
        }
    }
}