Java example source code file (InputStreamTests.java)
The InputStreamTests.java Java example source code/*
* Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of Oracle nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS 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 THE COPYRIGHT OWNER OR
* 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 USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 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.
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/*
* This source code is provided to illustrate the usage of a given feature
* or technique and has been deliberately simplified. Additional steps
* required for a production-quality application, such as security checks,
* input validation and proper error handling, might not be present in
* this sample code.
*/
package j2dbench.tests.iio;
import java.io.File;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import javax.imageio.ImageIO;
import javax.imageio.stream.ImageInputStream;
import j2dbench.Group;
import j2dbench.Result;
import j2dbench.TestEnvironment;
abstract class InputStreamTests extends InputTests {
private static Group streamRoot;
private static Group streamTestRoot;
public static void init() {
streamRoot = new Group(inputRoot, "stream",
"Image Stream Benchmarks");
streamTestRoot = new Group(streamRoot, "tests",
"ImageInputStream Tests");
new IISConstruct();
new IISRead();
new IISReadByteArray();
new IISReadFullyByteArray();
new IISReadBit();
new IISReadByte();
new IISReadUnsignedByte();
new IISReadShort();
new IISReadUnsignedShort();
new IISReadInt();
new IISReadUnsignedInt();
new IISReadFloat();
new IISReadLong();
new IISReadDouble();
new IISSkipBytes();
}
protected InputStreamTests(Group parent,
String nodeName, String description)
{
super(parent, nodeName, description);
addDependency(generalSourceRoot);
addDependencies(imageioGeneralOptRoot, true);
}
public void cleanupTest(TestEnvironment env, Object ctx) {
Context iioctx = (Context)ctx;
iioctx.cleanup(env);
}
private static class Context extends InputTests.Context {
ImageInputStream inputStream;
int scanlineStride; // width of a scanline (in bytes)
int length; // length of the entire stream (in bytes)
byte[] byteBuf;
Context(TestEnvironment env, Result result) {
super(env, result);
// 4 bytes per "pixel"
scanlineStride = size * 4;
// tack on an extra 4 bytes, so that in the 1x1 case we can
// call readLong() or readDouble() without hitting EOF
length = (scanlineStride * size) + 4;
// big enough for one scanline
byteBuf = new byte[scanlineStride];
initInput();
try {
inputStream = createImageInputStream();
} catch (IOException e) {
System.err.println("Error creating ImageInputStream");
}
}
void initContents(File f) throws IOException {
FileOutputStream fos = null;
try {
fos = new FileOutputStream(f);
initContents(fos);
} finally {
fos.close();
}
}
void initContents(OutputStream out) throws IOException {
for (int i = 0; i < size; i++) {
out.write(byteBuf);
}
out.write(new byte[4]); // add the 4 byte pad
out.flush();
}
void cleanup(TestEnvironment env) {
super.cleanup(env);
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
System.err.println("error closing stream");
}
inputStream = null;
}
}
}
private static class IISConstruct extends InputStreamTests {
public IISConstruct() {
super(streamTestRoot,
"construct",
"Construct");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(1);
result.setUnitName("stream");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
try {
do {
ImageInputStream iis = ictx.createImageInputStream();
iis.close();
ictx.closeOriginalStream();
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
}
}
}
private static class IISRead extends InputStreamTests {
public IISRead() {
super(streamTestRoot,
"read",
"read()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(1);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos >= length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.read();
pos++;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadByteArray extends InputStreamTests {
public IISReadByteArray() {
super(streamTestRoot,
"readByteArray",
"read(byte[]) (one \"scanline\" at a time)");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(ctx.scanlineStride);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final byte[] buf = ictx.byteBuf;
final int scanlineStride = ictx.scanlineStride;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + scanlineStride > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.read(buf);
pos += scanlineStride;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadFullyByteArray extends InputStreamTests {
public IISReadFullyByteArray() {
super(streamTestRoot,
"readFullyByteArray",
"readFully(byte[]) (one \"scanline\" at a time)");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(ctx.scanlineStride);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final byte[] buf = ictx.byteBuf;
final int scanlineStride = ictx.scanlineStride;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + scanlineStride > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readFully(buf);
pos += scanlineStride;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadBit extends InputStreamTests {
public IISReadBit() {
super(streamTestRoot,
"readBit",
"readBit()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(1);
result.setUnitName("bit");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length * 8;
int pos = 0;
try {
iis.mark();
do {
if (pos >= length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readBit();
pos++;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadByte extends InputStreamTests {
public IISReadByte() {
super(streamTestRoot,
"readByte",
"readByte()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(1);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos >= length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readByte();
pos++;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadUnsignedByte extends InputStreamTests {
public IISReadUnsignedByte() {
super(streamTestRoot,
"readUnsignedByte",
"readUnsignedByte()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(1);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos >= length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readUnsignedByte();
pos++;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadShort extends InputStreamTests {
public IISReadShort() {
super(streamTestRoot,
"readShort",
"readShort()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(2);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 2 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readShort();
pos += 2;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadUnsignedShort extends InputStreamTests {
public IISReadUnsignedShort() {
super(streamTestRoot,
"readUnsignedShort",
"readUnsignedShort()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(2);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 2 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readUnsignedShort();
pos += 2;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadInt extends InputStreamTests {
public IISReadInt() {
super(streamTestRoot,
"readInt",
"readInt()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(4);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 4 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readInt();
pos += 4;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadUnsignedInt extends InputStreamTests {
public IISReadUnsignedInt() {
super(streamTestRoot,
"readUnsignedInt",
"readUnsignedInt()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(4);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 4 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readUnsignedInt();
pos += 4;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadFloat extends InputStreamTests {
public IISReadFloat() {
super(streamTestRoot,
"readFloat",
"readFloat()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(4);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 4 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readFloat();
pos += 4;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadLong extends InputStreamTests {
public IISReadLong() {
super(streamTestRoot,
"readLong",
"readLong()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(8);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 8 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readLong();
pos += 8;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISReadDouble extends InputStreamTests {
public IISReadDouble() {
super(streamTestRoot,
"readDouble",
"readDouble()");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(8);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + 8 > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.readDouble();
pos += 8;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
private static class IISSkipBytes extends InputStreamTests {
public IISSkipBytes() {
super(streamTestRoot,
"skipBytes",
"skipBytes() (one \"scanline\" at a time)");
}
public Object initTest(TestEnvironment env, Result result) {
Context ctx = new Context(env, result);
result.setUnits(ctx.scanlineStride);
result.setUnitName("byte");
return ctx;
}
public void runTest(Object ctx, int numReps) {
final Context ictx = (Context)ctx;
final ImageInputStream iis = ictx.inputStream;
final int scanlineStride = ictx.scanlineStride;
final int length = ictx.length;
int pos = 0;
try {
iis.mark();
do {
if (pos + scanlineStride > length) {
iis.reset();
iis.mark();
pos = 0;
}
iis.skipBytes(scanlineStride);
pos += scanlineStride;
} while (--numReps >= 0);
} catch (IOException e) {
e.printStackTrace();
} finally {
try { iis.reset(); } catch (IOException e) {}
}
}
}
}
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