baseplatforminfo.java.svn-base

来自「cqME :java framework for TCK test.」· SVN-BASE 代码 · 共 153 行

/*
 * $Id$
 *
 * Copyright 1996-2007 Sun Microsystems, Inc. All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 only, as published by the Free Software Foundation.
 *
 * 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 version 2 for more details (a copy is
 * included at /legal/license.txt).
 *
 * You should have received a copy of the GNU General Public License
 * version 2 along with this work; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
 * Clara, CA 95054 or visit www.sun.com if you need additional
 * information or have any questions.
 *
 */

package com.sun.tck.j2me.platform;

import com.sun.javatest.TestEnvironment;

/**
 * Class that encapsulates information about underlying platform under test,
 * as configured in the interview.
 */
public abstract class BasePlatformInfo {
    /**
     * CLDC platform.
     */
    public static final String CLDC_PLATFORM = "cldc";

    /**
     * MIDP platform.
     */
    public static final String MIDP_PLATFORM = "midp";

    /**
     * CDC platform.
     */
    public static final String CDC_PLATFORM = "cdc";

    /**
     * A key to lookup platform information in the test environment.
     */
    public static final String PLATFORM_KEY = "baseConfiguration";

    private BasePlatformInfo() {
        // nobody should be able to create instances
    }

    /**
     * Determines whether MIDP mode is selected
     * in the interview.
     *
     * @return <code>true</code> if and only if MIDP mode is selected
     * in the interview.
     */
    public abstract boolean isMidp();

    /**
     * Determines whether CLDC mode is selected
     * in the interview.
     *
     * @return <code>true</code> if and only if CLDC mode is selected
     * in the interview.
     */
    public abstract boolean isCldc();

    /**
     * Determines whether CDC mode is selected
     * in the interview.
     *
     * @return <code>true</code> if and only if CDC mode is selected
     * in the interview.
     */
    public abstract boolean isCdc();

    /**
     * Provides selected platform's name.
     *
     * @return The name of selected platform.
     * @see #CLDC_PLATFORM
     * @see #MIDP_PLATFORM
     * @see #CDC_PLATFORM
     */
    public abstract String getPlatformName();

    /**
     * Creates PlatformInfo instance, with data loaded from the test
     * environment.
     * <p>
     * May return <code>null</code> if the base platform is undefined or
     * misconfigured in the interview.
     *
     * @param env
     *            The test environment.
     * @return BasePlatform instance.
     */
    public static BasePlatformInfo fromEnv(final TestEnvironment env) {
        String platformName = null;
        try {
            String[] envData = env.lookup(PLATFORM_KEY);
            if (envData != null && envData.length == 1) {
                platformName = envData[0];
            }
        } catch (TestEnvironment.Fault e) {
            // do nothing
        }

        if (platformName == null) {
            return null;
        }

        return new DefaultPlatformInfo(platformName);
    }

    private static class DefaultPlatformInfo extends BasePlatformInfo {
        private String platformName;

        DefaultPlatformInfo(String platformName) {
            this.platformName = platformName;
        }

        public String getPlatformName() {
            return platformName;
        }

        public boolean isMidp() {
            return MIDP_PLATFORM.equalsIgnoreCase(getPlatformName());
        }

        public boolean isCldc() {
            return CLDC_PLATFORM.equalsIgnoreCase(getPlatformName())
                    || "CUSTOM_CLDC".equalsIgnoreCase(getPlatformName());
        }

        public boolean isCdc() {
                return CDC_PLATFORM.equalsIgnoreCase(getPlatformName());
        }
    }

}