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Java example source code file (GetInstance.java)

This example Java source code file (GetInstance.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

badparam, configuration, exception, file, getinstance, getinstanceprovider, illegalargumentexception, ioexception, net, network, nosuchalgorithmexception, security, securityexception, string, sun, sunrsasign, uriparameter

The GetInstance.java Java example source code

/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code 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 code 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 in the LICENSE file that
 * accompanied this code).
 *
 * 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 6268315
 * @bug 6273812
 * @summary Configuration should be provider-based
 * @build GetInstanceConfigSpi GetInstanceProvider
 * @run main/othervm -Djava.security.auth.login.config==${test.src}${/}GetInstance.config GetInstance
 */

import javax.security.auth.login.*;

import java.security.*;
import java.io.File;
import java.net.URI;

public class GetInstance {

    private static final String JAVA_CONFIG = "JavaLoginConfig";

    private static final String MOD0 = "com.foo.Module";
    private static final String MOD1 = "com.bar.Module";
    private static final String MOD2 = "com.foobar.Module";
    private static final String MOD3 = "Module";

    private static class BadParam implements Configuration.Parameters { }

    public static void main(String[] args) throws Exception {

        int testnum = 1;
        GetInstance gi = new GetInstance();

        testnum = gi.testDefault(testnum);
        testnum = gi.testStringProvider(testnum);
        testnum = gi.testProvider(testnum);
        testnum = gi.testCustomImpl(testnum);
        testnum = gi.testURIParam(testnum);
        testnum = gi.testException(testnum);
    }

    private int testDefault(int testnum) throws Exception {
        // get an instance of the default ConfigSpiFile
        Configuration c = Configuration.getInstance(JAVA_CONFIG, null);
        doTest(c, testnum++);

        // get an instance of FooConfig
        try {
            c = Configuration.getInstance("FooConfig", null);
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (NoSuchAlgorithmException nsae) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        return testnum;
    }

    private int testStringProvider(int testnum) throws Exception {
        // get an instance of JavaLoginConfig from SUN
        Configuration c = Configuration.getInstance(JAVA_CONFIG, null, "SUN");
        doTest(c, testnum++);

        // get an instance of JavaLoginConfig from SunRsaSign
        try {
            c = Configuration.getInstance(JAVA_CONFIG, null, "SunRsaSign");
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (NoSuchAlgorithmException nsae) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        // get an instance of JavaLoginConfig from FOO
        try {
            c = Configuration.getInstance(JAVA_CONFIG, null, "FOO");
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (NoSuchProviderException nspe) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        return testnum;
    }

    private int testProvider(int testnum) throws Exception {
        // get an instance of JavaLoginConfig from SUN
        Configuration c = Configuration.getInstance(JAVA_CONFIG,
                                null,
                                Security.getProvider("SUN"));
        doTest(c, testnum++);

        // get an instance of JavaLoginConfig from SunRsaSign
        try {
            c = Configuration.getInstance(JAVA_CONFIG,
                                null,
                                Security.getProvider("SunRsaSign"));
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (NoSuchAlgorithmException nsae) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        return testnum;
    }

    private int testCustomImpl(int testnum) throws Exception {
        Provider customProvider = new GetInstanceProvider();
        Configuration c = Configuration.getInstance("GetInstanceConfigSpi",
                                null,
                                customProvider);
        doCustomTest(c, testnum++, customProvider);
        return testnum;
    }

    private int testURIParam(int testnum) throws Exception {
        // get an instance of JavaLoginConfig
        // from SUN and have it read from the URI

        File file = new File(System.getProperty("test.src", "."),
                                "GetInstance.configURI");
        URI uri = file.toURI();
        URIParameter uriParam = new URIParameter(uri);
        Configuration c = Configuration.getInstance(JAVA_CONFIG, uriParam);
        doTestURI(c, uriParam, testnum++);

        return testnum;
    }

    private int testException(int testnum) throws Exception {
        // get an instance of JavaLoginConfig
        // from SUN and have it read from the bad URI

        File file = new File(System.getProperty("test.src", "."),
                                "GetInstance.bad.configURI");
        URI uri = file.toURI();
        URIParameter uriParam = new URIParameter(uri);

        try {
            Configuration c = Configuration.getInstance(JAVA_CONFIG, uriParam);
            throw new SecurityException("expected IOException");
        } catch (NoSuchAlgorithmException nsae) {
            if (nsae.getCause() instanceof java.io.IOException) {
                System.out.println("exception test passed: " +
                                nsae.getCause().getMessage());
            } else {
                throw new SecurityException("expected IOException");
            }
        }

        // pass bad param
        try {
            Configuration c = Configuration.getInstance(JAVA_CONFIG,
                                new BadParam());
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (IllegalArgumentException iae) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        try {
            Configuration c = Configuration.getInstance(JAVA_CONFIG,
                                new BadParam(),
                                "SUN");
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (IllegalArgumentException iae) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        try {
            Configuration c = Configuration.getInstance(JAVA_CONFIG,
                                new BadParam(),
                                Security.getProvider("SUN"));
            throw new SecurityException("test " + testnum++ + " failed");
        } catch (IllegalArgumentException iae) {
            // good
            System.out.println("test " + testnum++ + " passed");
        }

        return testnum;
    }

    private int doCommon(Configuration c, int testnum) throws Exception {

        AppConfigurationEntry[] entries = c.getAppConfigurationEntry("EMPTY");
        if (entries == null) {
            System.out.println("test " + testnum + ".1 passed");
        } else {
            throw new SecurityException("test " + testnum + ".1 failed");
        }

        entries = c.getAppConfigurationEntry("one");
        if (entries.length == 1 &&
            MOD0.equals(entries[0].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.REQUIRED ==
                entries[0].getControlFlag()) {
            System.out.println("test " + testnum + ".2 passed");
        } else {
            throw new SecurityException("test " + testnum + ".2 failed");
        }

        entries = c.getAppConfigurationEntry("two");
        if (entries.length == 2 &&
            MOD0.equals(entries[0].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.SUFFICIENT ==
                entries[0].getControlFlag() &&
            MOD1.equals(entries[1].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.REQUIRED ==
                entries[1].getControlFlag()) {
            System.out.println("test " + testnum + ".3 passed");
        } else {
            throw new SecurityException("test " + testnum + ".3 failed");
        }

        entries = c.getAppConfigurationEntry("three");
        if (entries.length == 3 &&
            MOD0.equals(entries[0].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.SUFFICIENT ==
                entries[0].getControlFlag() &&
            MOD1.equals(entries[1].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.REQUIRED ==
                entries[1].getControlFlag() &&
            MOD2.equals(entries[2].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.OPTIONAL ==
                entries[2].getControlFlag()) {
            System.out.println("test " + testnum + ".4 passed");
        } else {
            throw new SecurityException("test " + testnum + ".4 failed");
        }

        return testnum;
    }

    private void doCustomTest(Configuration c,
                        int testnum,
                        Provider custom) throws Exception {

        testnum = doCommon(c, testnum);

        // test getProvider
        if (custom == c.getProvider() &&
            "GetInstanceProvider".equals(c.getProvider().getName())) {
            System.out.println("test " + testnum + " (getProvider) passed");
        } else {
            throw new SecurityException
                        ("test " + testnum + " (getProvider) failed");
        }

        // test getType
        if ("GetInstanceConfigSpi".equals(c.getType())) {
            System.out.println("test " + testnum + "(getType) passed");
        } else {
            throw new SecurityException("test " + testnum +
                        " (getType) failed");
        }
    }

    private void doTest(Configuration c, int testnum) throws Exception {
        testnum = doCommon(c, testnum);

        // test getProvider
        if ("SUN".equals(c.getProvider().getName())) {
            System.out.println("test " + testnum + " (getProvider) passed");
        } else {
            throw new SecurityException("test " + testnum +
                        " (getProvider) failed");
        }

        // test getType
        if (JAVA_CONFIG.equals(c.getType())) {
            System.out.println("test " + testnum + " (getType) passed");
        } else {
            throw new SecurityException("test " + testnum +
                        " (getType) failed");
        }
    }

    private void doTestURI(Configuration c,
                        Configuration.Parameters uriParam,
                        int testnum) throws Exception {

        AppConfigurationEntry[] entries = c.getAppConfigurationEntry("four");
        if (entries.length == 4 &&
            MOD0.equals(entries[0].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.SUFFICIENT ==
                entries[0].getControlFlag() &&
            MOD1.equals(entries[1].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.REQUIRED ==
                entries[1].getControlFlag() &&
            MOD2.equals(entries[2].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.OPTIONAL ==
                entries[2].getControlFlag() &&
            MOD3.equals(entries[3].getLoginModuleName()) &&
            AppConfigurationEntry.LoginModuleControlFlag.REQUIRED ==
                entries[3].getControlFlag()) {
            System.out.println("test " + testnum + ".1 passed");
        } else {
            throw new SecurityException("test " + testnum + ".1 failed");
        }

        // test getProvider
        if ("SUN".equals(c.getProvider().getName())) {
            System.out.println("test " + testnum + " (getProvider) passed");
        } else {
            throw new SecurityException("test " + testnum +
                        " (getProvider) failed");
        }

        // test getType
        if (JAVA_CONFIG.equals(c.getType())) {
            System.out.println("test " + testnum + " (getType) passed");
        } else {
            throw new SecurityException("test " + testnum +
                        " (getType) failed");
        }

        // test getParameters
        if (uriParam.equals(c.getParameters())) {
            System.out.println("test " + testnum + " (getParameters) passed");
        } else {
            throw new SecurityException("test " + testnum +
                        " (getParameters) failed");
        }
    }
}

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