com.google.devtools.moe.client.project.FileReadingProjectContextFactory.java Source code

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Here is the source code for com.google.devtools.moe.client.project.FileReadingProjectContextFactory.java

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/*
 * Copyright (c) 2011 Google, Inc.
 *
 * 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.google.devtools.moe.client.project;

import static java.nio.charset.StandardCharsets.UTF_8;

import com.google.common.io.Files;
import com.google.devtools.moe.client.CommandRunner;
import com.google.devtools.moe.client.FileSystem;
import com.google.devtools.moe.client.Ui;
import com.google.devtools.moe.client.repositories.Repositories;
import com.google.devtools.moe.client.tools.FileDifference.FileDiffer;

import java.io.File;
import java.io.IOException;

import javax.inject.Inject;

/**
 * Creates a ProjectContext from a configuration file loaded from the file system.
 */
public class FileReadingProjectContextFactory extends ProjectContextFactory {

    @Inject
    public FileReadingProjectContextFactory(FileDiffer differ, CommandRunner cmd, FileSystem filesystem, Ui ui,
            Repositories repositories) {
        super(differ, cmd, filesystem, ui, repositories);
    }

    @Override
    public ProjectConfig loadConfiguration(String configFilename) throws InvalidProject {
        String configText;
        Ui.Task task = ui.pushTask("read_config", "Reading config file from %s", configFilename);
        try {
            try {
                configText = Files.toString(new File(configFilename), UTF_8);
            } catch (IOException e) {
                throw new InvalidProject("Config File \"" + configFilename + "\" not accessible.");
            }
            return ProjectConfig.parse(configText);
        } finally {
            ui.popTask(task, "");
        }
    }
}