com.googlesource.gerrit.plugins.task.TaskConfigFactory.java Source code

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Here is the source code for com.googlesource.gerrit.plugins.task.TaskConfigFactory.java

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// Copyright (C) 2016 The Android Open Source Project
//
// Licensed 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 com.googlesource.gerrit.plugins.task;

import com.google.gerrit.reviewdb.client.Branch;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.server.config.AllProjectsName;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.inject.Inject;

import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Repository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;

public class TaskConfigFactory {
    private static final Logger log = LoggerFactory.getLogger(TaskConfigFactory.class);

    private static final String EXTENSION = ".config";
    private static final String DEFAULT = "task" + EXTENSION;
    private static final String LEGACY_DEFAULT = "tasks" + EXTENSION;

    private final GitRepositoryManager gitMgr;
    private final AllProjectsName allProjects;

    @Inject
    TaskConfigFactory(GitRepositoryManager gitMgr) {
        // Injecting AllProjectsName doesn't work here
        this.allProjects = new AllProjectsName("All-Projects");
        this.gitMgr = gitMgr;
    }

    public TaskConfig getRootConfig() throws ConfigInvalidException, IOException {
        TaskConfig cfg = getTaskConfig(getRootBranch(), DEFAULT);
        if (cfg.getRootTasks().isEmpty()) {
            return getTaskConfig(getRootBranch(), LEGACY_DEFAULT);
        }
        return cfg;
    }

    private Branch.NameKey getRootBranch() {
        return new Branch.NameKey(allProjects, "refs/meta/config");
    }

    public TaskConfig getTaskConfig(Branch.NameKey branch, String fileName)
            throws ConfigInvalidException, IOException {
        TaskConfig cfg = new TaskConfig(branch, fileName);
        Project.NameKey project = branch.getParentKey();
        try {
            Repository git = gitMgr.openRepository(project);
            try {
                cfg.load(git);
            } finally {
                git.close();
            }
        } catch (IOException e) {
            log.warn("Failed to load " + fileName + " for " + project.get(), e);
            throw e;
        } catch (ConfigInvalidException e) {
            throw e;
        }
        return cfg;
    }
}