iText 5 itextpdf.jar Source Code
itextpdf.jar is a component in iText 5 Java library to provide core functionalities.
iText Java library allows you to generate and manage PDF documents.
The Source Code files are provided at iText GitHub site.
You can compile it to generate your JAR file, using pom.xml as the build configuration file.
The source code of itextpdf-5.5.14.jar is provided below:
✍: FYIcenter.com
⏎ com/itextpdf/text/pdf/RandomAccessFileOrArray.java
/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2020 iText Group NV
* Authors: Bruno Lowagie, Paulo Soares, et al.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, see http://www.gnu.org/licenses or write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA, 02110-1301 USA, or download the license from the following URL:
* http://itextpdf.com/terms-of-use/
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* In accordance with Section 7(b) of the GNU Affero General Public License,
* a covered work must retain the producer line in every PDF that is created
* or manipulated using iText.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the iText software without
* disclosing the source code of your own applications.
* These activities include: offering paid services to customers as an ASP,
* serving PDFs on the fly in a web application, shipping iText with a closed
* source product.
*
* For more information, please contact iText Software Corp. at this
* address: sales@itextpdf.com
*/
package com.itextpdf.text.pdf;
import com.itextpdf.text.Document;
import com.itextpdf.text.ExceptionConverter;
import com.itextpdf.text.io.IndependentRandomAccessSource;
import com.itextpdf.text.io.RandomAccessSource;
import com.itextpdf.text.io.RandomAccessSourceFactory;
import java.io.DataInput;
import java.io.DataInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
/** Intended to be layered on top of a low level RandomAccessSource object. Provides
* functionality useful during parsing:
* <ul>
* <li>tracks current position in the file</li>
* <li>allows single byte pushback</li>
* <li>allows reading of multi-byte data structures (int, long, String) for both Big and Little Endian representations</li>
* <li>allows creation of independent 'views' of the underlying data source</li>
* </ul>
*
* @author Paulo Soares, Kevin Day
*/
public class RandomAccessFileOrArray implements DataInput {
/**
* The source that backs this object
*/
private final RandomAccessSource byteSource;
/**
* The physical location in the underlying byte source.
*/
private long byteSourcePosition;
/**
* the pushed back byte, if any
*/
private byte back;
/**
* Whether there is a pushed back byte
*/
private boolean isBack = false;
/**
* @deprecated use {@link RandomAccessFileOrArray#RandomAccessFileOrArray(RandomAccessSource)} instead
* @param filename
* @throws IOException
*/
@Deprecated
public RandomAccessFileOrArray(String filename) throws IOException {
this(new RandomAccessSourceFactory()
.setForceRead(false)
.setUsePlainRandomAccess(Document.plainRandomAccess)
.createBestSource(filename));
}
/**
* Creates an independent view of the specified source. Closing the new object will not close the source.
* Closing the source will have adverse effect on the behavior of the new view.
* @deprecated use {@link RandomAccessFileOrArray#createView()} instead
* @param source the source for the new independent view
*/
@Deprecated
public RandomAccessFileOrArray(RandomAccessFileOrArray source) {
this(new IndependentRandomAccessSource(source.byteSource));
}
/**
* Creates an independent view of this object (with it's own file pointer and pushback queue). Closing the new object will not close this object.
* Closing this object will have adverse effect on the view.
* @return the new view
*/
public RandomAccessFileOrArray createView(){
return new RandomAccessFileOrArray(new IndependentRandomAccessSource(byteSource));
}
public RandomAccessSource createSourceView() {
return new IndependentRandomAccessSource(byteSource);
}
/**
* Creates a RandomAccessFileOrArray that wraps the specified byte source. The byte source will be closed when
* this RandomAccessFileOrArray is closed.
* @param byteSource the byte source to wrap
*/
public RandomAccessFileOrArray(RandomAccessSource byteSource){
this.byteSource = byteSource;
}
/**
* Constructs a new RandomAccessFileOrArrayObject
* @param filename the file to open (can be a file system file or one of the following url strings: file://, http://, https://, jar:, wsjar:, vfszip:
* @param forceRead if true, the entire file will be read into memory
* @param plainRandomAccess if true, a regular RandomAccessFile is used to access the file contents. If false, a memory mapped file will be used, unless the file cannot be mapped into memory, in which case regular RandomAccessFile will be used
* @throws IOException if there is a failure opening or reading the file
* @deprecated use {@link RandomAccessSourceFactory#createBestSource(String)} and {@link RandomAccessFileOrArray#RandomAccessFileOrArray(RandomAccessSource)} instead
*/
@Deprecated
public RandomAccessFileOrArray(String filename, boolean forceRead, boolean plainRandomAccess) throws IOException {
this(new RandomAccessSourceFactory()
.setForceRead(forceRead)
.setUsePlainRandomAccess(plainRandomAccess)
.createBestSource(filename));
}
/**
* @param url
* @throws IOException
* @deprecated use {@link RandomAccessSourceFactory#createSource(URL)} and {@link RandomAccessFileOrArray#RandomAccessFileOrArray(RandomAccessSource)} instead
*/
@Deprecated
public RandomAccessFileOrArray(URL url) throws IOException {
this (new RandomAccessSourceFactory().createSource(url));
}
/**
* @param is
* @throws IOException
* @deprecated use {@link RandomAccessSourceFactory#createSource(InputStream)} and {@link RandomAccessFileOrArray#RandomAccessFileOrArray(RandomAccessSource)} instead
*/
@Deprecated
public RandomAccessFileOrArray(InputStream is) throws IOException {
this (new RandomAccessSourceFactory().createSource(is));
}
/**
* @param arrayIn byte[]
* @throws IOException
* @deprecated use {@link RandomAccessSourceFactory#createSource(byte[])} and {@link RandomAccessFileOrArray#RandomAccessFileOrArray(RandomAccessSource)} instead
*/
@Deprecated
public RandomAccessFileOrArray(byte arrayIn[]) {
this (new RandomAccessSourceFactory().createSource(arrayIn));
}
@Deprecated
//TODO: I'm only putting this in here for backwards compatability with PdfReader(RAFOA, byte[]). Once we get rid of the
//PdfReader constructor, we can get rid of this method as well
protected RandomAccessSource getByteSource(){
return byteSource;
}
/**
* Pushes a byte back. The next get() will return this byte instead of the value from the underlying data source
* @param b the byte to push
*/
public void pushBack(byte b) {
back = b;
isBack = true;
}
/**
* Reads a single byte
* @return the byte, or -1 if EOF is reached
* @throws IOException
*/
public int read() throws IOException {
if(isBack) {
isBack = false;
return back & 0xff;
}
return byteSource.get(byteSourcePosition++);
}
public int read(byte[] b, int off, int len) throws IOException {
if (len == 0)
return 0;
int count = 0;
if (isBack && len > 0) {
isBack = false;
b[off++] = back;
--len;
count++;
}
if (len > 0){
int byteSourceCount = byteSource.get(byteSourcePosition, b, off, len);
if (byteSourceCount > 0) {
count += byteSourceCount;
byteSourcePosition += byteSourceCount;
}
}
if (count == 0)
return -1;
return count;
}
public int read(byte b[]) throws IOException {
return read(b, 0, b.length);
}
public void readFully(byte b[]) throws IOException {
readFully(b, 0, b.length);
}
public void readFully(byte b[], int off, int len) throws IOException {
int n = 0;
do {
int count = read(b, off + n, len - n);
if (count < 0)
throw new EOFException();
n += count;
} while (n < len);
}
public long skip(long n) throws IOException {
if (n <= 0) {
return 0;
}
int adj = 0;
if (isBack) {
isBack = false;
if (n == 1) {
return 1;
}
else {
--n;
adj = 1;
}
}
long pos;
long len;
long newpos;
pos = getFilePointer();
len = length();
newpos = pos + n;
if (newpos > len) {
newpos = len;
}
seek(newpos);
/* return the actual number of bytes skipped */
return newpos - pos + adj;
}
public int skipBytes(int n) throws IOException {
return (int)skip(n);
}
@Deprecated
//TODO: remove all references to this call, then remove this method
public void reOpen() throws IOException {
seek(0);
}
public void close() throws IOException {
isBack = false;
byteSource.close();
}
public long length() throws IOException {
return byteSource.length();
}
public void seek(long pos) throws IOException {
byteSourcePosition = pos;
isBack = false;
}
//TODO: consider changing method name to getPosition or something like that - might not be worth making a breaking change, though
public long getFilePointer() throws IOException {
return byteSourcePosition - (isBack ? 1 : 0);
}
public boolean readBoolean() throws IOException {
int ch = this.read();
if (ch < 0)
throw new EOFException();
return (ch != 0);
}
public byte readByte() throws IOException {
int ch = this.read();
if (ch < 0)
throw new EOFException();
return (byte)(ch);
}
public int readUnsignedByte() throws IOException {
int ch = this.read();
if (ch < 0)
throw new EOFException();
return ch;
}
public short readShort() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (short)((ch1 << 8) + ch2);
}
/**
* Reads a signed 16-bit number from this stream in little-endian order.
* The method reads two
* bytes from this stream, starting at the current stream pointer.
* If the two bytes read, in order, are
* <code>b1</code> and <code>b2</code>, where each of the two values is
* between <code>0</code> and <code>255</code>, inclusive, then the
* result is equal to:
* <blockquote><pre>
* (short)((b2 << 8) | b1)
* </pre></blockquote>
* <p>
* This method blocks until the two bytes are read, the end of the
* stream is detected, or an exception is thrown.
*
* @return the next two bytes of this stream, interpreted as a signed
* 16-bit number.
* @exception EOFException if this stream reaches the end before reading
* two bytes.
* @exception IOException if an I/O error occurs.
*/
public final short readShortLE() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (short)((ch2 << 8) + (ch1 << 0));
}
public int readUnsignedShort() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (ch1 << 8) + ch2;
}
/**
* Reads an unsigned 16-bit number from this stream in little-endian order.
* This method reads
* two bytes from the stream, starting at the current stream pointer.
* If the bytes read, in order, are
* <code>b1</code> and <code>b2</code>, where
* <code>0 <= b1, b2 <= 255</code>,
* then the result is equal to:
* <blockquote><pre>
* (b2 << 8) | b1
* </pre></blockquote>
* <p>
* This method blocks until the two bytes are read, the end of the
* stream is detected, or an exception is thrown.
*
* @return the next two bytes of this stream, interpreted as an
* unsigned 16-bit integer.
* @exception EOFException if this stream reaches the end before reading
* two bytes.
* @exception IOException if an I/O error occurs.
*/
public final int readUnsignedShortLE() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (ch2 << 8) + (ch1 << 0);
}
public char readChar() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (char)((ch1 << 8) + ch2);
}
/**
* Reads a Unicode character from this stream in little-endian order.
* This method reads two
* bytes from the stream, starting at the current stream pointer.
* If the bytes read, in order, are
* <code>b1</code> and <code>b2</code>, where
* <code>0 <= b1, b2 <= 255</code>,
* then the result is equal to:
* <blockquote><pre>
* (char)((b2 << 8) | b1)
* </pre></blockquote>
* <p>
* This method blocks until the two bytes are read, the end of the
* stream is detected, or an exception is thrown.
*
* @return the next two bytes of this stream as a Unicode character.
* @exception EOFException if this stream reaches the end before reading
* two bytes.
* @exception IOException if an I/O error occurs.
*/
public final char readCharLE() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
if ((ch1 | ch2) < 0)
throw new EOFException();
return (char)((ch2 << 8) + (ch1 << 0));
}
public int readInt() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
int ch3 = this.read();
int ch4 = this.read();
if ((ch1 | ch2 | ch3 | ch4) < 0)
throw new EOFException();
return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + ch4);
}
/**
* Reads a signed 32-bit integer from this stream in little-endian order.
* This method reads 4
* bytes from the stream, starting at the current stream pointer.
* If the bytes read, in order, are <code>b1</code>,
* <code>b2</code>, <code>b3</code>, and <code>b4</code>, where
* <code>0 <= b1, b2, b3, b4 <= 255</code>,
* then the result is equal to:
* <blockquote><pre>
* (b4 << 24) | (b3 << 16) + (b2 << 8) + b1
* </pre></blockquote>
* <p>
* This method blocks until the four bytes are read, the end of the
* stream is detected, or an exception is thrown.
*
* @return the next four bytes of this stream, interpreted as an
* <code>int</code>.
* @exception EOFException if this stream reaches the end before reading
* four bytes.
* @exception IOException if an I/O error occurs.
*/
public final int readIntLE() throws IOException {
int ch1 = this.read();
int ch2 = this.read();
int ch3 = this.read();
int ch4 = this.read();
if ((ch1 | ch2 | ch3 | ch4) < 0)
throw new EOFException();
return ((ch4 << 24) + (ch3 << 16) + (ch2 << 8) + (ch1 << 0));
}
/**
* Reads an unsigned 32-bit integer from this stream. This method reads 4
* bytes from the stream, starting at the current stream pointer.
* If the bytes read, in order, are <code>b1</code>,
* <code>b2</code>, <code>b3</code>, and <code>b4</code>, where
* <code>0 <= b1, b2, b3, b4 <= 255</code>,
* then the result is equal to:
* <blockquote><pre>
* (b1 << 24) | (b2 << 16) + (b3 << 8) + b4
* </pre></blockquote>
* <p>
* This method blocks until the four bytes are read, the end of the
* stream is detected, or an exception is thrown.
*
* @return the next four bytes of this stream, interpreted as a
* <code>long</code>.
* @exception EOFException if this stream reaches the end before reading
* four bytes.
* @exception IOException if an I/O error occurs.
*/
public final long readUnsignedInt() throws IOException {
long ch1 = this.read();
long ch2 = this.read();
long ch3 = this.read();
long ch4 = this.read();
if ((ch1 | ch2 | ch3 | ch4) < 0)
throw new EOFException();
return ((ch1 << 24) + (ch2 << 16) + (ch3 << 8) + (ch4 << 0));
}
public final long readUnsignedIntLE() throws IOException {
long ch1 = this.read();
long ch2 = this.read();
long ch3 = this.read();
long ch4 = this.read();
if ((ch1 | ch2 | ch3 | ch4) < 0)
throw new EOFException();
return ((ch4 << 24) + (ch3 << 16) + (ch2 << 8) + (ch1 << 0));
}
public long readLong() throws IOException {
return ((long)(readInt()) << 32) + (readInt() & 0xFFFFFFFFL);
}
public final long readLongLE() throws IOException {
int i1 = readIntLE();
int i2 = readIntLE();
return ((long)i2 << 32) + (i1 & 0xFFFFFFFFL);
}
public float readFloat() throws IOException {
return Float.intBitsToFloat(readInt());
}
public final float readFloatLE() throws IOException {
return Float.intBitsToFloat(readIntLE());
}
public double readDouble() throws IOException {
return Double.longBitsToDouble(readLong());
}
public final double readDoubleLE() throws IOException {
return Double.longBitsToDouble(readLongLE());
}
public String readLine() throws IOException {
StringBuilder input = new StringBuilder();
int c = -1;
boolean eol = false;
while (!eol) {
switch (c = read()) {
case -1:
case '\n':
eol = true;
break;
case '\r':
eol = true;
long cur = getFilePointer();
if ((read()) != '\n') {
seek(cur);
}
break;
default:
input.append((char)c);
break;
}
}
if ((c == -1) && (input.length() == 0)) {
return null;
}
return input.toString();
}
public String readUTF() throws IOException {
return DataInputStream.readUTF(this);
}
/** Reads a <CODE>String</CODE> from the font file as bytes using the given
* encoding.
* @param length the length of bytes to read
* @param encoding the given encoding
* @return the <CODE>String</CODE> read
* @throws IOException the font file could not be read
*/
public String readString(int length, String encoding) throws IOException {
byte buf[] = new byte[length];
readFully(buf);
try {
return new String(buf, encoding);
}
catch (Exception e) {
throw new ExceptionConverter(e);
}
}
}
⏎ com/itextpdf/text/pdf/RandomAccessFileOrArray.java
Or download all of them as a single archive file:
File name: itextpdf-5.5.14-fyi.zip File size: 2163839 bytes Release date: 2009-10-09 Download
⇒ iText-2.1.6.jar - iText, a JAVA-PDF library
⇐ iText layout.jar Source Code
2021-07-03, 113125👍, 0💬
