inputstreammessageelementtest.java

jxta_src_2.41b jxta 2.41b 最新版源码 from www.jxta.org

/*
 * $Id: InputStreamMessageElementTest.java,v 1.5 2003/01/19 21:23:23 bondolo Exp $
 ********************
 *
 * Copyright (c) 2001 Sun Microsystems, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *       Sun Microsystems, Inc. for Project JXTA."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact Project JXTA at http://www.jxta.org.
 *
 * 5. Products derived from this software may not be called "JXTA",
 *    nor may "JXTA" appear in their name, without prior written
 *    permission of Sun.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL SUN MICROSYSTEMS OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of Project JXTA.  For more
 * information on Project JXTA, please see
 * <http://www.jxta.org/>.
 *
 * This license is based on the BSD license adopted by the Apache Foundation.
 ********************
 */

package net.jxta.endpoint;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FilterInputStream;
import java.io.InputStream;
import java.io.SequenceInputStream;
import java.util.Arrays;
import java.util.Vector;

import java.io.IOException;

import junit.framework.*;

import net.jxta.document.MimeMediaType;
import net.jxta.endpoint.MessageElement;
import net.jxta.endpoint.InputStreamMessageElement;

/**
 *
 * @author mike
 */
public class InputStreamMessageElementTest extends TestCase {

	String data =
			"11111111111111111111111111111111111111111111111111111111111111\n\r"
				+ "22222222222222222222222222222222222222222222222222222222222222\n\r"
				+ "33333333333333333333333333333333333333333333333333333333333333\n\r";

	public InputStreamMessageElementTest(java.lang.String testName) {
		super(testName);
	}

	public static void main(java.lang.String[] args) {
		junit.textui.TestRunner.run(suite());
	}

	public static Test suite() {
		TestSuite suite = new TestSuite(InputStreamMessageElementTest.class);
		return suite;
	}

	static class noMarkInputStream extends java.io.FilterInputStream {

		noMarkInputStream(InputStream in) {
			super(in);
		}

		public boolean markSupported() {
			return false;
		}

		public void mark(int limit) {

		}

		public void reset() throws IOException {
			throw new IOException("no way");
		}

	}

	private void printStream(InputStream is, String comment) {
		try {
			System.err.println(comment + "_START________");
			while (is.available() > 0) {
				System.err.print((char) is.read());
			}

			System.err.println(comment + "_END__________");
		}
		catch (IOException e) {
			System.err.println("EEROR");
		}

	}

    private byte[] streamToBytes(InputStream is) {
        ByteArrayOutputStream bout = new ByteArrayOutputStream( );
        
        try {
            while( true ) {
                int res = is.read();
                
                if( -1 == res )
                    break;
                
                bout.write( res );
            }
            
        } catch (Throwable e) {
            this.fail("Stream to bytes");
        }
        
        return bout.toByteArray();
    }
    
	public void testVisual() throws IOException {

		InputStream stream = new ByteArrayInputStream(data.getBytes());
		printStream(stream, "Origine");
		stream.reset();

		MessageElement element = new InputStreamMessageElement("TEST", null, stream, null);
		printStream(element.getStream(), "Element");
	}
	
	public void testGetStream() throws IOException {

		InputStream stream = new ByteArrayInputStream(data.getBytes());
		MessageElement element = new InputStreamMessageElement("TEST", null, stream, null);

		this.assertTrue("getStream()", Arrays.equals( data.getBytes(), streamToBytes(element.getStream()))  );
	}
		
	public void testToString() throws IOException {

		InputStream stream = new ByteArrayInputStream(data.getBytes());
		MessageElement element = new InputStreamMessageElement("TEST", null, stream, null);
        
		this.assertEquals("toString()", data, element.toString());
	}

	public void testNewByteArrayMessageElement() {
		try {
			byte[] source1 = { 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 };
			byte[] source2 = { 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68 };
			byte[] source3 = {
			};

			InputStream in1 = new ByteArrayInputStream(source1);
			InputStream in2 = new ByteArrayInputStream(source2);

			Vector concat = new Vector(0);
			concat.add(new ByteArrayInputStream(source1));
			concat.add(new ByteArrayInputStream(source2));

			InputStream in3 = new SequenceInputStream(concat.elements());

			InputStream in4 = new noMarkInputStream(new ByteArrayInputStream(source1));

			InputStream in5 = new ByteArrayInputStream(source3);

			// default blob, default mime type
			InputStreamMessageElement el1 = new InputStreamMessageElement("element1", null, in1, (MessageElement) null);

			// subset blob, binary mime type
			InputStreamMessageElement el2 = new InputStreamMessageElement("element2", new MimeMediaType("image/jpeg"), in2, 7, (MessageElement) null);

			// combined blob, binary mime type
			InputStreamMessageElement el3 = new InputStreamMessageElement("element3", new MimeMediaType("image/jpeg"), in3, 11, (MessageElement) null);

			// subset blob, default mime type, no mark on stream
			InputStreamMessageElement el4 = new InputStreamMessageElement("element4", null, in4, 6, (MessageElement) null);

			// subset blob, default mime type, no mark on stream
			InputStreamMessageElement el5 = new InputStreamMessageElement("element5", null, in5, null);

			// getdatasize

			System.out.println(el1.getByteLength());

			System.out.println(el2.getByteLength());

			System.out.println(el3.getByteLength());

			System.out.println(el4.getByteLength());

			// hashcode

			System.out.println(el1.hashCode());

			System.out.println(el2.hashCode());

			System.out.println(el3.hashCode());

			System.out.println(el4.hashCode());

			System.out.println(el5.hashCode());

			// sendDataStream

			System.out.print("el1 send (" + el1.getMimeType() + ") : ");

			el1.sendToStream(System.out);

			System.out.println();

			System.out.print("el2 send (" + el2.getMimeType() + ") : ");

			el2.sendToStream(System.out);

			System.out.println();

			System.out.print("el3 send (" + el3.getMimeType() + ") : ");

			el3.sendToStream(System.out);

			System.out.println();

			System.out.print("el4 send (" + el4.getMimeType() + ") : ");

			el4.sendToStream(System.out);

			System.out.println();

			// getDataStream

			System.out.print("el1 read (" + el1.getMimeType() + ") : ");

			InputStream in = el1.getStream();

			do {
				int aChar = in.read();

				if (-1 == aChar)
					break;

				System.out.print("0x" + Integer.toHexString(aChar) + " ");

			}
			while (true);
			System.out.println();

			System.out.print("el2 read (" + el2.getMimeType() + ") : ");

			in = el2.getStream();

			do {
				int aChar = in.read();

				if (-1 == aChar)
					break;

				System.out.print("0x" + Integer.toHexString(aChar) + " ");

			}
			while (true);
			System.out.println();

			System.out.print("el3 read (" + el3.getMimeType() + ") : ");

			in = el3.getStream();

			do {
				int aChar = in.read();

				if (-1 == aChar)
					break;

				System.out.print("0x" + Integer.toHexString(aChar) + " ");

			}
			while (true);
			System.out.println();

			System.out.print("el4 read (" + el4.getMimeType() + ") : ");

			in = el4.getStream();

			do {
				int aChar = in.read();

				if (-1 == aChar)
					break;

				System.out.print("0x" + Integer.toHexString(aChar) + " ");

			}
			while (true);
			System.out.println();

		}
		catch (Exception caught) {
			caught.printStackTrace();
			fail("exception thrown : " + caught.getMessage());
		}
	}
}