/*
* ====================================================================
* 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.impl.nio.reactor;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.UnsupportedEncodingException;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.nio.charset.CharacterCodingException;
import org.apache.http.nio.reactor.SessionInputBuffer;
import org.apache.http.nio.reactor.SessionOutputBuffer;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.util.CharArrayBuffer;
import org.junit.Assert;
import org.junit.Test;
/**
* Simple tests for {@link SessionInputBuffer} and {@link SessionOutputBuffer}.
*/
public class TestSessionInOutBuffers {
private static WritableByteChannel newChannel(final ByteArrayOutputStream outstream) {
return Channels.newChannel(outstream);
}
private static ReadableByteChannel newChannel(final byte[] bytes) {
return Channels.newChannel(new ByteArrayInputStream(bytes));
}
private static ReadableByteChannel newChannel(final String s, final String charset)
throws UnsupportedEncodingException {
return Channels.newChannel(new ByteArrayInputStream(s.getBytes(charset)));
}
private static ReadableByteChannel newChannel(final String s)
throws UnsupportedEncodingException {
return newChannel(s, "US-ASCII");
}
@Test
public void testReadLineChunks() throws Exception {
HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, params);
ReadableByteChannel channel = newChannel("One\r\nTwo\r\nThree");
inbuf.fill(channel);
CharArrayBuffer line = new CharArrayBuffer(64);
line.clear();
Assert.assertTrue(inbuf.readLine(line, false));
Assert.assertEquals("One", line.toString());
line.clear();
Assert.assertTrue(inbuf.readLine(line, false));
Assert.assertEquals("Two", line.toString());
line.clear();
Assert.assertFalse(inbuf.readLine(line, false));
channel = newChannel("\r\nFour");
inbuf.fill(channel);
line.clear();
Assert.assertTrue(inbuf.readLine(line, false));
Assert.assertEquals("Three", line.toString());
inbuf.fill(channel);
line.clear();
Assert.assertTrue(inbuf.readLine(line, true));
Assert.assertEquals("Four", line.toString());
line.clear();
Assert.assertFalse(inbuf.readLine(line, true));
}
@Test
public void testWriteLineChunks() throws Exception {
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(16, 16, params);
SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, params);
ReadableByteChannel inChannel = newChannel("One\r\nTwo\r\nThree");
inbuf.fill(inChannel);
CharArrayBuffer line = new CharArrayBuffer(64);
line.clear();
Assert.assertTrue(inbuf.readLine(line, false));
Assert.assertEquals("One", line.toString());
outbuf.writeLine(line);
line.clear();
Assert.assertTrue(inbuf.readLine(line, false));
Assert.assertEquals("Two", line.toString());
outbuf.writeLine(line);
line.clear();
Assert.assertFalse(inbuf.readLine(line, false));
inChannel = newChannel("\r\nFour");
inbuf.fill(inChannel);
line.clear();
Assert.assertTrue(inbuf.readLine(line, false));
Assert.assertEquals("Three", line.toString());
outbuf.writeLine(line);
inbuf.fill(inChannel);
line.clear();
Assert.assertTrue(inbuf.readLine(line, true));
Assert.assertEquals("Four", line.toString());
outbuf.writeLine(line);
line.clear();
Assert.assertFalse(inbuf.readLine(line, true));
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel outChannel = newChannel(outstream);
outbuf.flush(outChannel);
String s = new String(outstream.toByteArray(), "US-ASCII");
Assert.assertEquals("One\r\nTwo\r\nThree\r\nFour\r\n", s);
}
@Test
public void testBasicReadWriteLine() throws Exception {
String[] teststrs = new String[5];
teststrs[0] = "Hello";
teststrs[1] = "This string should be much longer than the size of the line buffer " +
"which is only 16 bytes for this test";
StringBuilder buffer = new StringBuilder();
for (int i = 0; i < 15; i++) {
buffer.append("123456789 ");
}
buffer.append("and stuff like that");
teststrs[2] = buffer.toString();
teststrs[3] = "";
teststrs[4] = "And goodbye";
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
for (int i = 0; i < teststrs.length; i++) {
outbuf.writeLine(teststrs[i]);
}
//this write operation should have no effect
outbuf.writeLine((String)null);
outbuf.writeLine((CharArrayBuffer)null);
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel outChannel = newChannel(outstream);
outbuf.flush(outChannel);
ReadableByteChannel channel = newChannel(outstream.toByteArray());
SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 16, params);
inbuf.fill(channel);
for (int i = 0; i < teststrs.length; i++) {
Assert.assertEquals(teststrs[i], inbuf.readLine(true));
}
Assert.assertNull(inbuf.readLine(true));
Assert.assertNull(inbuf.readLine(true));
}
@Test
public void testComplexReadWriteLine() throws Exception {
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
outbuf.write(ByteBuffer.wrap(new byte[] {'a', '\n'}));
outbuf.write(ByteBuffer.wrap(new byte[] {'\r', '\n'}));
outbuf.write(ByteBuffer.wrap(new byte[] {'\r', '\r', '\n'}));
outbuf.write(ByteBuffer.wrap(new byte[] {'\n'}));
StringBuilder buffer = new StringBuilder();
for (int i = 0; i < 14; i++) {
buffer.append("a");
}
String s1 = buffer.toString();
buffer.append("\r\n");
outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes("US-ASCII")));
buffer.setLength(0);
for (int i = 0; i < 15; i++) {
buffer.append("a");
}
String s2 = buffer.toString();
buffer.append("\r\n");
outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes("US-ASCII")));
buffer.setLength(0);
for (int i = 0; i < 16; i++) {
buffer.append("a");
}
String s3 = buffer.toString();
buffer.append("\r\n");
outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes("US-ASCII")));
outbuf.write(ByteBuffer.wrap(new byte[] {'a'}));
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel outChannel = newChannel(outstream);
outbuf.flush(outChannel);
ReadableByteChannel channel = newChannel(outstream.toByteArray());
SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 16, params);
inbuf.fill(channel);
Assert.assertEquals("a", inbuf.readLine(true));
Assert.assertEquals("", inbuf.readLine(true));
Assert.assertEquals("\r", inbuf.readLine(true));
Assert.assertEquals("", inbuf.readLine(true));
Assert.assertEquals(s1, inbuf.readLine(true));
Assert.assertEquals(s2, inbuf.readLine(true));
Assert.assertEquals(s3, inbuf.readLine(true));
Assert.assertEquals("a", inbuf.readLine(true));
Assert.assertNull(inbuf.readLine(true));
Assert.assertNull(inbuf.readLine(true));
}
@Test
public void testReadOneByte() throws Exception {
// make the buffer larger than that of transmitter
byte[] out = new byte[40];
for (int i = 0; i < out.length; i++) {
out[i] = (byte)('0' + i);
}
ReadableByteChannel channel = newChannel(out);
HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, params);
while (inbuf.fill(channel) > 0) {
}
byte[] in = new byte[40];
for (int i = 0; i < in.length; i++) {
in[i] = (byte)inbuf.read();
}
for (int i = 0; i < out.length; i++) {
Assert.assertEquals(out[i], in[i]);
}
}
@Test
public void testReadByteBuffer() throws Exception {
byte[] pattern = "0123456789ABCDEF".getBytes("US-ASCII");
ReadableByteChannel channel = newChannel(pattern);
HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(4096, 1024, params);
while (inbuf.fill(channel) > 0) {
}
ByteBuffer dst = ByteBuffer.allocate(10);
Assert.assertEquals(10, inbuf.read(dst));
dst.flip();
Assert.assertEquals(dst, ByteBuffer.wrap(pattern, 0, 10));
dst.clear();
Assert.assertEquals(6, inbuf.read(dst));
dst.flip();
Assert.assertEquals(dst, ByteBuffer.wrap(pattern, 10, 6));
}
@Test
public void testReadByteBufferWithMaxLen() throws Exception {
byte[] pattern = "0123456789ABCDEF".getBytes("US-ASCII");
ReadableByteChannel channel = newChannel(pattern);
HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(4096, 1024, params);
while (inbuf.fill(channel) > 0) {
}
ByteBuffer dst = ByteBuffer.allocate(16);
Assert.assertEquals(10, inbuf.read(dst, 10));
dst.flip();
Assert.assertEquals(dst, ByteBuffer.wrap(pattern, 0, 10));
dst.clear();
Assert.assertEquals(3, inbuf.read(dst, 3));
dst.flip();
Assert.assertEquals(dst, ByteBuffer.wrap(pattern, 10, 3));
Assert.assertEquals(3, inbuf.read(dst, 20));
dst.flip();
Assert.assertEquals(dst, ByteBuffer.wrap(pattern, 13, 3));
}
@Test
public void testReadToChannel() throws Exception {
byte[] pattern = "0123456789ABCDEF".getBytes("US-ASCII");
ReadableByteChannel channel = newChannel(pattern);
HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(4096, 1024, params);
while (inbuf.fill(channel) > 0) {
}
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel dst = newChannel(outstream);
Assert.assertEquals(16, inbuf.read(dst));
Assert.assertEquals(ByteBuffer.wrap(pattern), ByteBuffer.wrap(outstream.toByteArray()));
}
@Test
public void testReadToChannelWithMaxLen() throws Exception {
byte[] pattern = "0123456789ABCDEF".getBytes("US-ASCII");
ReadableByteChannel channel = newChannel(pattern);
HttpParams params = new BasicHttpParams();
SessionInputBuffer inbuf = new SessionInputBufferImpl(4096, 1024, params);
while (inbuf.fill(channel) > 0) {
}
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel dst = newChannel(outstream);
Assert.assertEquals(10, inbuf.read(dst, 10));
Assert.assertEquals(3, inbuf.read(dst, 3));
Assert.assertEquals(3, inbuf.read(dst, 10));
Assert.assertEquals(ByteBuffer.wrap(pattern), ByteBuffer.wrap(outstream.toByteArray()));
}
@Test
public void testWriteByteBuffer() throws Exception {
byte[] pattern = "0123456789ABCDEF0123456789ABCDEF".getBytes("US-ASCII");
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(4096, 1024, params);
ReadableByteChannel src = newChannel(pattern);
outbuf.write(src);
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(outstream);
while (outbuf.flush(channel) > 0) {
}
Assert.assertEquals(ByteBuffer.wrap(pattern), ByteBuffer.wrap(outstream.toByteArray()));
}
@Test
public void testWriteFromChannel() throws Exception {
byte[] pattern = "0123456789ABCDEF0123456789ABCDEF".getBytes("US-ASCII");
HttpParams params = new BasicHttpParams();
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(4096, 1024, params);
outbuf.write(ByteBuffer.wrap(pattern, 0, 16));
outbuf.write(ByteBuffer.wrap(pattern, 16, 10));
outbuf.write(ByteBuffer.wrap(pattern, 26, 6));
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel channel = newChannel(outstream);
while (outbuf.flush(channel) > 0) {
}
Assert.assertEquals(ByteBuffer.wrap(pattern), ByteBuffer.wrap(outstream.toByteArray()));
}
static final int SWISS_GERMAN_HELLO [] = {
0x47, 0x72, 0xFC, 0x65, 0x7A, 0x69, 0x5F, 0x7A, 0xE4, 0x6D, 0xE4
};
static final int RUSSIAN_HELLO [] = {
0x412, 0x441, 0x435, 0x43C, 0x5F, 0x43F, 0x440, 0x438,
0x432, 0x435, 0x442
};
private static String constructString(int [] unicodeChars) {
StringBuilder buffer = new StringBuilder();
if (unicodeChars != null) {
for (int i = 0; i < unicodeChars.length; i++) {
buffer.append((char)unicodeChars[i]);
}
}
return buffer.toString();
}
@Test
public void testMultibyteCodedReadWriteLine() throws Exception {
String s1 = constructString(SWISS_GERMAN_HELLO);
String s2 = constructString(RUSSIAN_HELLO);
String s3 = "Like hello and stuff";
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setHttpElementCharset(params, "UTF-8");
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
for (int i = 0; i < 10; i++) {
outbuf.writeLine(s1);
outbuf.writeLine(s2);
outbuf.writeLine(s3);
}
ByteArrayOutputStream outstream = new ByteArrayOutputStream();
WritableByteChannel outChannel = newChannel(outstream);
outbuf.flush(outChannel);
byte[] tmp = outstream.toByteArray();
ReadableByteChannel channel = newChannel(tmp);
SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, params);
while (inbuf.fill(channel) > 0) {
}
for (int i = 0; i < 10; i++) {
Assert.assertEquals(s1, inbuf.readLine(true));
Assert.assertEquals(s2, inbuf.readLine(true));
Assert.assertEquals(s3, inbuf.readLine(true));
}
}
@Test
public void testMalformedCharacters() throws Exception {
HttpParams params = new BasicHttpParams();
String s1 = constructString(SWISS_GERMAN_HELLO);
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
try {
outbuf.writeLine(s1);
Assert.fail("Expected CharacterCodingException");
} catch (CharacterCodingException expected) {
}
byte[] tmp = s1.getBytes("ISO-8859-1");
ReadableByteChannel channel = newChannel(tmp);
SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, params);
while (inbuf.fill(channel) > 0) {
}
try {
String s = inbuf.readLine(true);
Assert.fail("Expected CharacterCodingException, got '" + s + "'");
} catch (CharacterCodingException expected) {
}
}
@Test
public void testInputMatchesBufferLength() throws Exception {
HttpParams params = new BasicHttpParams();
String s1 = "abcde";
SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 5, params);
outbuf.writeLine(s1);
}
}