org.eclipse.emf.compare.diagram.papyrus.tests.egit.fixture.MockSystemReader.java Source code

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/*
 * Copyright (C) 2009, Google Inc.
 * Copyright (C) 2009, Robin Rosenberg <robin.rosenberg@dewire.com>
 * Copyright (C) 2009, Yann Simon <yann.simon.fr@gmail.com>
 * and other copyright owners as documented in the project's IP log.
 *
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Distribution License v1.0 which
 * accompanies this distribution, is reproduced below, and is
 * available at http://www.eclipse.org/org/documents/edl-v10.php
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above
 *   copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided
 *   with the distribution.
 *
 * - Neither the name of the Eclipse Foundation, Inc. nor the
 *   names of its contributors may be used to endorse or promote
 *   products derived from this software without specific prior
 *   written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.eclipse.emf.compare.diagram.papyrus.tests.egit.fixture;

import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.TimeZone;

import org.eclipse.jgit.errors.ConfigInvalidException;
import org.eclipse.jgit.lib.Config;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.storage.file.FileBasedConfig;
import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.SystemReader;

/**
 * Except for this comment, verbatim copy/paste of org.eclipse.jgit.junit.MockSystemReader.
 */
@SuppressWarnings("nls")
public class MockSystemReader extends SystemReader {
    private final class MockConfig extends FileBasedConfig {
        private MockConfig(File cfgLocation, FS fs) {
            super(cfgLocation, fs);
        }

        @Override
        public void load() throws IOException, ConfigInvalidException {
            // Do nothing
        }

        @Override
        public boolean isOutdated() {
            return false;
        }
    }

    final Map<String, String> values = new HashMap<String, String>();

    FileBasedConfig userGitConfig;

    FileBasedConfig systemGitConfig;

    public MockSystemReader() {
        init(Constants.OS_USER_NAME_KEY);
        init(Constants.GIT_AUTHOR_NAME_KEY);
        init(Constants.GIT_AUTHOR_EMAIL_KEY);
        init(Constants.GIT_COMMITTER_NAME_KEY);
        init(Constants.GIT_COMMITTER_EMAIL_KEY);
        userGitConfig = new MockConfig(null, null);
        systemGitConfig = new MockConfig(null, null);
        setCurrentPlatform();
    }

    private void init(final String n) {
        setProperty(n, n);
    }

    public void clearProperties() {
        values.clear();
    }

    public void setProperty(String key, String value) {
        values.put(key, value);
    }

    @Override
    public String getenv(String variable) {
        return values.get(variable);
    }

    @Override
    public String getProperty(String key) {
        return values.get(key);
    }

    @Override
    public FileBasedConfig openUserConfig(Config parent, FS fs) {
        assert parent == null || parent == systemGitConfig;
        return userGitConfig;
    }

    @Override
    public FileBasedConfig openSystemConfig(Config parent, FS fs) {
        assert parent == null;
        return systemGitConfig;
    }

    @Override
    public String getHostname() {
        return "fake.host.example.com";
    }

    @Override
    public long getCurrentTime() {
        return 1250379778668L; // Sat Aug 15 20:12:58 GMT-03:30 2009
    }

    @Override
    public int getTimezone(long when) {
        return getTimeZone().getOffset(when) / (60 * 1000);
    }

    @Override
    public TimeZone getTimeZone() {
        return TimeZone.getTimeZone("GMT-03:30");
    }

    @Override
    public Locale getLocale() {
        return Locale.US;
    }

    @Override
    public SimpleDateFormat getSimpleDateFormat(String pattern) {
        return new SimpleDateFormat(pattern, getLocale());
    }

    @Override
    public DateFormat getDateTimeInstance(int dateStyle, int timeStyle) {
        return DateFormat.getDateTimeInstance(dateStyle, timeStyle, getLocale());
    }

    /**
     * Assign some properties for the currently executing platform
     */
    public void setCurrentPlatform() {
        setProperty("os.name", System.getProperty("os.name"));
        setProperty("file.separator", System.getProperty("file.separator"));
        setProperty("path.separator", System.getProperty("path.separator"));
        setProperty("line.separator", System.getProperty("line.separator"));
    }

    /**
     * Emulate Windows
     */
    public void setWindows() {
        setProperty("os.name", "Windows");
        setProperty("file.separator", "\\");
        setProperty("path.separator", ";");
        setProperty("line.separator", "\r\n");
    }

    /**
     * Emulate Unix
     */
    public void setUnix() {
        setProperty("os.name", "*nix"); // Essentially anything but Windows
        setProperty("file.separator", "/");
        setProperty("path.separator", ":");
        setProperty("line.separator", "\n");
    }
}