org.eclim.plugin.core.command.project.ProjectUpdateCommand.java Source code

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Here is the source code for org.eclim.plugin.core.command.project.ProjectUpdateCommand.java

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/**
 * Copyright (C) 2005 - 2014  Eric Van Dewoestine
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.eclim.plugin.core.command.project;

import java.io.File;
import java.io.FileReader;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.eclim.Services;

import org.eclim.annotation.Command;

import org.eclim.command.CommandLine;
import org.eclim.command.Error;
import org.eclim.command.Options;

import org.eclim.logging.Logger;

import org.eclim.plugin.core.command.AbstractCommand;

import org.eclim.plugin.core.preference.Preferences;

import org.eclim.plugin.core.project.ProjectManagement;

import org.eclim.plugin.core.util.ProjectUtils;

import org.eclim.util.IOUtils;

import org.eclipse.core.resources.IProject;

import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonStreamParser;

/**
 * Command to update a project.
 *
 * @author Eric Van Dewoestine
 */
@Command(name = "project_update", options = "REQUIRED p project ARG," + "OPTIONAL b buildfile ARG,"
        + "OPTIONAL s settings ARG")
public class ProjectUpdateCommand extends AbstractCommand {
    private static final Logger logger = Logger.getLogger(ProjectUpdateCommand.class);

    @Override
    public Object execute(CommandLine commandLine) throws Exception {
        String name = commandLine.getValue(Options.PROJECT_OPTION);
        String settings = commandLine.getValue(Options.SETTINGS_OPTION);

        IProject project = ProjectUtils.getProject(name);

        if (settings != null) {
            List<Error> errors = updateSettings(project, settings);
            if (errors.size() > 0) {
                return errors;
            }
        } else {
            List<Error> errors = ProjectManagement.update(project, commandLine);
            if (errors.size() > 0) {
                return errors;
            }
        }

        return Services.getMessage("project.updated", name);
    }

    /**
     * Updates the projects settings.
     *
     * @param project The project.
     * @param settings The temp settings file.
     * @return List of errors or an empty List if none.
     */
    private List<Error> updateSettings(IProject project, String settings) throws Exception {
        FileReader in = null;
        File file = new File(settings);
        ArrayList<Error> errors = new ArrayList<Error>();
        try {
            in = new FileReader(file);
            JsonStreamParser parser = new JsonStreamParser(in);
            JsonObject obj = (JsonObject) parser.next();

            Preferences preferences = getPreferences();
            for (Map.Entry<String, JsonElement> entry : obj.entrySet()) {
                String name = entry.getKey();
                String value = entry.getValue().getAsString();
                try {
                    preferences.setValue(project, name, value);
                } catch (IllegalArgumentException iae) {
                    errors.add(new Error(iae.getMessage(), null, 0, 0));
                }
            }
        } finally {
            IOUtils.closeQuietly(in);
            try {
                file.delete();
            } catch (Exception e) {
                logger.warn("Error deleting project settings temp file: " + file, e);
            }
        }
        return errors;
    }
}