Tomcat example source code file (TestSerializablePrincipal.java)

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

Java - Tomcat tags/keywords

fileinputstream, fileinputstream, filenotfoundexception, fileoutputstream, genericprincipal, genericprincipal, inner, io, ioexception, ioexception, objectinputstream, objectinputstream, objectoutputstream, roleb, testprincipal, util

The Tomcat TestSerializablePrincipal.java source code

/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.apache.catalina.ha.session;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;

import org.apache.catalina.realm.GenericPrincipal;

import junit.framework.TestCase;

public class TestSerializablePrincipal extends TestCase {

    /**
     * Simple serialization / de-serialization test for bug 43840.
     */
    public void testWriteReadPrincipal() {
        // Get a temporary file to use for the serialization test
        File file = null;
        try {
            file = File.createTempFile("ser", null);
            file.deleteOnExit();
        } catch (IOException e) {
            e.printStackTrace();
            fail("ioe creating temporary file");
        }
        
        // Create the Principal to serialize
        List<String> roles = new ArrayList();
        roles.add("RoleA");
        roles.add("RoleB");
        TestPrincipal tpOriginal = new TestPrincipal("inner");
        GenericPrincipal gpOriginal =
            new GenericPrincipal(null, "usr", "pwd", roles, tpOriginal);
        
        // Do the serialization
        try {
            FileOutputStream fos = new FileOutputStream(file);
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            SerializablePrincipal.writePrincipal(gpOriginal, oos);
            oos.close();
            fos.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            fail("fnfe creating object output stream");
        } catch (IOException e) {
            e.printStackTrace();
            fail("ioe serializing principal");
        }
        
        // De-serialize the Principal
        GenericPrincipal gpNew = null;
        try {
            FileInputStream fis = new FileInputStream(file);
            ObjectInputStream ois = new ObjectInputStream(fis);
            gpNew = SerializablePrincipal.readPrincipal(ois, null);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            fail("fnfe reading object output stream");
        } catch (IOException e) {
            e.printStackTrace();
            fail("ioe de-serializing principal");
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            fail("cnfe de-serializing principal");
        }
        
        // Now test how similar original and de-serialized versions are
        assertEquals("User names different", gpOriginal.getName(),
                gpNew.getName());
        assertEquals("Passwords different", gpOriginal.getPassword(),
                gpNew.getPassword());
        assertEquals("Number of roles different", gpOriginal.getRoles().length,
                gpNew.getRoles().length);
        for (int i = 0; i < gpOriginal.getRoles().length; i++) {
            assertEquals("Role name index " + i + "different",
                    gpOriginal.getRoles()[i], gpNew.getRoles()[i]);
        }
        // These are the key tests for bug 43840
        assertNotSame("Inner principal not present", gpNew,
                gpNew.getUserPrincipal());
        assertEquals("Inner user names are different", tpOriginal.getName(),
                gpNew.getUserPrincipal().getName());
    }

}