modifyingtestfinder.java.svn-base

来自「cqME :java framework for TCK test.」· SVN-BASE 代码 · 共 209 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 java.io.File;
import java.util.Comparator;
import java.util.Set;
import java.util.TreeSet;

import com.sun.javatest.TestDescription;
import com.sun.javatest.TestEnvironment;
import com.sun.javatest.TestFinder;

/**
 * Special purpose TestFinder that decorates another finder and modifies on the
 * fly the tests found by the decorated finder, based on the strategy supplied
 * by {@link com.sun.tck.j2me.javatest.TestDescriptionModifier}.
 */
public class ModifyingTestFinder extends TestFinder {

    /**
     * Creates a decorating finder with the specified base finder and test
     * description modifier. Most of this finder's work is delegated to the
     * base finder.
     *
     * @param baseFinder
     *                The base finder.
     * @param modifier
     *                The test description modifier.
     */
    public ModifyingTestFinder(TestFinder baseFinder,
            TestDescriptionModifier modifier) {

        if (baseFinder == null || modifier == null) {
            throw new NullPointerException(
                    "TestFinder and Modifier should not be null");
        }
        this.baseFinder = baseFinder;
        this.modifier = modifier;
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public void init(String[] args, File testSuiteRoot,
            TestEnvironment env) throws Fault {
        baseFinder.init(args, testSuiteRoot, env);
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public TestDescriptionModifier getDescriptionModifier() {
        return modifier;
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public File getRoot() {
        return baseFinder.getRoot();
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public File getRootDir() {
        return baseFinder.getRootDir();
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public void setComparator(Comparator c) {
        baseFinder.setComparator(c);
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public Comparator getComparator() {
        return baseFinder.getComparator();
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public ErrorHandler getErrorHandler() {
        return baseFinder.getErrorHandler();
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public void setErrorHandler(ErrorHandler h) {
        baseFinder.setErrorHandler(h);
    }

    public int getErrorCount() {
        return baseFinder.getErrorCount();
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public String[] getErrors() {
        return baseFinder.getErrors();
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public void clearErrors() {
        baseFinder.clearErrors();
    }

    public void read(File file) {
        baseFinder.read(file);
    }

    /**
     * This implementation simply delegates its work to the base finder.
     */
    public File[] getFiles() {
        return baseFinder.getFiles();
    }

    /**
     * This method must not be called.
     * It always throws <code>IllegalStateException</code>.
     * @throws IllegalStateException
     */
    public void scan(File file) {
        throw new IllegalStateException("Must not be called");
    }

    /**
     * Returns an array of test descriptions, found by the base finder and then
     * modified by {@link com.sun.tck.j2me.javatest.TestDescriptionModifier}.
     *
     * @return The array of modified test descriptions.
     */
    public TestDescription[] getTests() {
        TestDescription[] origDescrs = baseFinder.getTests();

        Set modifiedDescriptions = new TreeSet(new Comparator() {
            public boolean equals(Object obj) {
                return getComparator().equals(obj);
            }

            public int hashCode() {
                return getComparator().hashCode();
            }

            public int compare(Object o1, Object o2) {
                if (o1 instanceof TestDescription &&
                    o2 instanceof TestDescription) {
                    return getComparator().compare(
                            ((TestDescription) o1).getRootRelativeURL(),
                            ((TestDescription) o2).getRootRelativeURL());
                } else {
                    return 0;
                }
            }
        });

        for (int i = 0; i < origDescrs.length; i++) {
            TestDescription td = origDescrs[i];
            if (modifier.isModifiable(td)) {
                Set mDescrs = modifier.modify(td);
                modifiedDescriptions.addAll(mDescrs);
            } else {
                modifiedDescriptions.add(td);
            }
        }

        return (TestDescription[]) modifiedDescriptions.toArray(
                new TestDescription[0]);
    }

    private TestFinder baseFinder = null;
    private TestDescriptionModifier modifier = null;
}