Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* Copyright (c) 2008-2015, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.nio;
import com.hazelcast.core.HazelcastException;
import com.hazelcast.logging.Logger;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.internal.serialization.SerializationService;
import java.io.ByteArrayOutputStream;
import java.io.Closeable;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectStreamClass;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.util.zip.DataFormatException;
import java.util.zip.Deflater;
import java.util.zip.Inflater;
public final class IOUtil {
public static final byte PRIMITIVE_TYPE_BOOLEAN = 1;
public static final byte PRIMITIVE_TYPE_BYTE = 2;
public static final byte PRIMITIVE_TYPE_SHORT = 3;
public static final byte PRIMITIVE_TYPE_INTEGER = 4;
public static final byte PRIMITIVE_TYPE_LONG = 5;
public static final byte PRIMITIVE_TYPE_FLOAT = 6;
public static final byte PRIMITIVE_TYPE_DOUBLE = 7;
public static final byte PRIMITIVE_TYPE_UTF = 8;
private IOUtil() {
}
/**
* This method has a direct dependency on how objects are serialized in
* {@link com.hazelcast.nio.serialization.DataSerializer}! If the stream
* format is ever changed this extraction method needs to be changed too!
*/
public static long extractOperationCallId(Data data, SerializationService serializationService) throws IOException {
ObjectDataInput input = serializationService.createObjectDataInput(data);
boolean identified = input.readBoolean();
if (identified) {
// read factoryId
input.readInt();
// read typeId
input.readInt();
} else {
// read classname
input.readUTF();
}
// read callId
return input.readLong();
}
public static void writeByteArray(ObjectDataOutput out, byte[] value) throws IOException {
int size = (value == null) ? 0 : value.length;
out.writeInt(size);
if (size > 0) {
out.write(value);
}
}
public static byte[] readByteArray(ObjectDataInput in) throws IOException {
int size = in.readInt();
if (size == 0) {
return null;
} else {
byte[] b = new byte[size];
in.readFully(b);
return b;
}
}
public static void writeObject(ObjectDataOutput out, Object object) throws IOException {
boolean isBinary = object instanceof Data;
out.writeBoolean(isBinary);
if (isBinary) {
out.writeData((Data) object);
} else {
out.writeObject(object);
}
}
public static T readObject(ObjectDataInput in) throws IOException {
boolean isBinary = in.readBoolean();
if (isBinary) {
return (T) in.readData();
}
return in.readObject();
}
public static ObjectInputStream newObjectInputStream(final ClassLoader classLoader, final InputStream in) throws IOException {
return new ObjectInputStream(in) {
protected Class resolveClass(final ObjectStreamClass desc) throws ClassNotFoundException {
return ClassLoaderUtil.loadClass(classLoader, desc.getName());
}
};
}
public static OutputStream newOutputStream(final ByteBuffer dst) {
return new OutputStream() {
public void write(int b) throws IOException {
dst.put((byte) b);
}
public void write(byte[] bytes, int off, int len) throws IOException {
dst.put(bytes, off, len);
}
};
}
public static InputStream newInputStream(final ByteBuffer src) {
return new InputStream() {
public int read() throws IOException {
if (!src.hasRemaining()) {
return -1;
}
return src.get() & 0xff;
}
public int read(byte[] bytes, int off, int len) throws IOException {
if (!src.hasRemaining()) {
return -1;
}
len = Math.min(len, src.remaining());
src.get(bytes, off, len);
return len;
}
};
}
public static int copyToHeapBuffer(ByteBuffer src, ByteBuffer dst) {
if (src == null) {
return 0;
}
int n = Math.min(src.remaining(), dst.remaining());
if (n > 0) {
if (n < 16) {
for (int i = 0; i < n; i++) {
dst.put(src.get());
}
} else {
int srcPosition = src.position();
int destPosition = dst.position();
System.arraycopy(src.array(), srcPosition, dst.array(), destPosition, n);
src.position(srcPosition + n);
dst.position(destPosition + n);
}
}
return n;
}
public static int copyToDirectBuffer(ByteBuffer src, ByteBuffer dst) {
int n = Math.min(src.remaining(), dst.remaining());
if (n > 0) {
dst.put(src.array(), src.position(), n);
src.position(src.position() + n);
}
return n;
}
public static void writeLongString(DataOutput dos, String str) throws IOException {
int chunk = 1000;
int count = str.length() / chunk;
int remaining = str.length() - (count * chunk);
dos.writeInt(count + ((remaining > 0) ? 1 : 0));
for (int i = 0; i < count; i++) {
dos.writeUTF(str.substring(i * chunk, (i + 1) * chunk));
}
if (remaining > 0) {
dos.writeUTF(str.substring(count * chunk));
}
}
public static String readLongString(DataInput in) throws IOException {
int count = in.readInt();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < count; i++) {
sb.append(in.readUTF());
}
return sb.toString();
}
public static byte[] compress(byte[] input) throws IOException {
Deflater compressor = new Deflater();
compressor.setLevel(Deflater.BEST_SPEED);
compressor.setInput(input);
compressor.finish();
ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length / 10);
byte[] buf = new byte[input.length / 10];
while (!compressor.finished()) {
int count = compressor.deflate(buf);
bos.write(buf, 0, count);
}
bos.close();
compressor.end();
return bos.toByteArray();
}
public static byte[] decompress(byte[] compressedData) throws IOException {
if (compressedData.length == 0) {
return compressedData;
}
Inflater inflater = new Inflater();
inflater.setInput(compressedData);
ByteArrayOutputStream bos = new ByteArrayOutputStream(compressedData.length);
byte[] buf = new byte[1024];
while (!inflater.finished()) {
try {
int count = inflater.inflate(buf);
bos.write(buf, 0, count);
} catch (DataFormatException e) {
Logger.getLogger(IOUtil.class).finest("Decompression failed", e);
}
}
bos.close();
inflater.end();
return bos.toByteArray();
}
public static void writeAttributeValue(Object value, ObjectDataOutput out) throws IOException {
Class type = value.getClass();
if (type.equals(Boolean.class)) {
out.writeByte(PRIMITIVE_TYPE_BOOLEAN);
out.writeBoolean((Boolean) value);
} else if (type.equals(Byte.class)) {
out.writeByte(PRIMITIVE_TYPE_BYTE);
out.writeByte((Byte) value);
} else if (type.equals(Short.class)) {
out.writeByte(PRIMITIVE_TYPE_SHORT);
out.writeShort((Short) value);
} else if (type.equals(Integer.class)) {
out.writeByte(PRIMITIVE_TYPE_INTEGER);
out.writeInt((Integer) value);
} else if (type.equals(Long.class)) {
out.writeByte(PRIMITIVE_TYPE_LONG);
out.writeLong((Long) value);
} else if (type.equals(Float.class)) {
out.writeByte(PRIMITIVE_TYPE_FLOAT);
out.writeFloat((Float) value);
} else if (type.equals(Double.class)) {
out.writeByte(PRIMITIVE_TYPE_DOUBLE);
out.writeDouble((Double) value);
} else if (type.equals(String.class)) {
out.writeByte(PRIMITIVE_TYPE_UTF);
out.writeUTF((String) value);
} else {
throw new IllegalStateException("Illegal attribute type id found");
}
}
public static Object readAttributeValue(ObjectDataInput in) throws IOException {
byte type = in.readByte();
switch (type) {
case PRIMITIVE_TYPE_BOOLEAN:
return in.readBoolean();
case PRIMITIVE_TYPE_BYTE:
return in.readByte();
case PRIMITIVE_TYPE_SHORT:
return in.readShort();
case PRIMITIVE_TYPE_INTEGER:
return in.readInt();
case PRIMITIVE_TYPE_LONG:
return in.readLong();
case PRIMITIVE_TYPE_FLOAT:
return in.readFloat();
case PRIMITIVE_TYPE_DOUBLE:
return in.readDouble();
case PRIMITIVE_TYPE_UTF:
return in.readUTF();
default:
throw new IllegalStateException("Illegal attribute type id found");
}
}
/**
* Closes the Closable quietly. So no exception will be thrown. Can also safely be called with a null value.
*
* @param closeable the Closeable to close.
*/
public static void closeResource(final Closeable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (IOException e) {
Logger.getLogger(IOUtil.class).finest("closeResource failed", e);
}
}
}
/**
* Ensures that the file described by the supplied parameter does not exist
* after the method returns. If the file didn't exist, returns silently.
* If the file could not be deleted, fails with an exception.
* If the file is a directory, its children are recursively deleted.
*/
public static void delete(File f) {
if (!f.exists()) {
return;
}
final File[] subFiles = f.listFiles();
if (subFiles != null) {
for (File sf : subFiles) {
delete(sf);
}
}
if (!f.delete()) {
throw new HazelcastException("Failed to delete " + f);
}
}
}
