modifiabletestfilter.java.svn-base

来自「cqME :java framework for TCK test.」· SVN-BASE 代码 · 共 111 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.javatest;

import com.sun.javatest.TestDescription;
import com.sun.javatest.TestFilter;

/**
 * Special purpose <code>TestFilter</code> that decorates another filter.
 * <p>
 * For a test, modified by
 * {@link com.sun.tck.j2me.javatest.TestDescriptionModifier}, the filter
 * calculates an original unmodified test and verifies that both, original and
 * modified tests are acceptable by the base filter.
 * <p>
 * For unmodified tests, the filter delegates its work to the base filter.
 */
public class ModifiableTestFilter extends TestFilter {
    private TestFilter base;
    private TestDescriptionModifier tdm;

    /**
     * Creates a <code>TestFilter</code> instance that decorates the specified
     * base filter and uses the specified <code>TestDescriptionModifier</code>.
     *
     * @param base
     *                The base test filter.
     * @param tdm
     *                The modifier.
     */
    public ModifiableTestFilter(TestFilter base, TestDescriptionModifier tdm) {
        this.base = base;
        this.tdm = tdm;
    }

    /**
     * This implementation simply delegates its work to the base filter.
     */
    public String getName() {
        return base.getName();
    }

    /**
     * This implementation simply delegates its work to the base filter.
     */
    public String getDescription() {
        return base.getDescription();
    }

    /**
     * This implementation simply delegates its work to the base filter.
     */
    public String getReason() {
        return base.getReason();
    }

    /**
     * For a test, modified by
     * {@link com.sun.tck.j2me.javatest.TestDescriptionModifier}, the filter
     * calculates an original unmodified test and verifies that both, original
     * and modified tests are acceptable by the base filter.
     * <p>
     * For unmodified tests, the filter delegates its work to the base filter.
     *
     * @param td
     *            The test to accept or reject.
     * @return <code>true</code> if accepted, false otherwise
     * @throws TestFilter.Fault
     *             In case of any errors.
     */
    public boolean accepts(TestDescription td) throws TestFilter.Fault {
        if (tdm == null) {
            return base.accepts(td);
        }

        if (tdm.isModifiedTest(td)) {
            TestDescription origTd = tdm.getOriginalDescription(td);
            assert origTd != null;

            return base.accepts(origTd) && base.accepts(td);
        } else {
            return base.accepts(td);
        }
    }
}