src/main/java/org/apache/maven/plugins/jira/AdaptiveJiraDownloader.java

/*
 * 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.maven.plugins.jira;

import java.util.List;

import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugins.issues.Issue;

/**
 * Jira downloader that uses REST or RSS, depending. This code is not very attractive. However, JIRA has supported REST
 * for a very long time, and so the fallback is only relevant for people with very old copies of JIRA.
 */
public class AdaptiveJiraDownloader extends AbstractJiraDownloader {
    private AbstractJiraDownloader effectiveDownloader;

    private boolean forceClassic;

    public void doExecute() throws Exception {
        effectiveDownloader = new RestJiraDownloader();
        copySettings(effectiveDownloader);
        try {
            effectiveDownloader.doExecute();
        } catch (RestJiraDownloader.NoRest nre) {
            getLog().info("Falling back to RSS for issue download: " + nre.getMessage());
            effectiveDownloader = new ClassicJiraDownloader();
            copySettings(effectiveDownloader);
            effectiveDownloader.doExecute();
        }
    }

    private void copySettings(AbstractJiraDownloader target) {
        target.setLog(getLog());
        target.setMavenProject(project);
        target.setOutput(output);
        target.setNbEntries(nbEntriesMax);
        target.setComponent(component);
        target.setFixVersionIds(fixVersionIds);
        target.setStatusIds(statusIds);
        target.setResolutionIds(resolutionIds);
        target.setPriorityIds(priorityIds);
        target.setSortColumnNames(sortColumnNames);
        target.setFilter(filter);
        target.setJiraDatePattern(jiraDatePattern);
        target.setJiraUser(jiraUser);
        target.setJiraPassword(jiraPassword);
        target.setTypeIds(typeIds);
        target.setWebUser(webUser);
        target.setWebPassword(webPassword);
        target.setSettings(settings);
        target.setUseJql(useJql);
        target.setOnlyCurrentVersion(onlyCurrentVersion);
        target.setVersionPrefix(versionPrefix);
        target.setConnectionTimeout(connectionTimeout);
        target.setReceiveTimout(receiveTimout);
    }

    public List<Issue> getIssueList() throws MojoExecutionException {
        return effectiveDownloader.getIssueList();
    }

    public boolean isForceClassic() {
        return forceClassic;
    }

    public void setForceClassic(boolean forceClassic) {
        this.forceClassic = forceClassic;
    }
}