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JRE 8 rt.jar - com.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the com.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ com/sun/org/apache/xerces/internal/impl/io/UCSReader.java
/* * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. */ /* * Copyright 2000-2002,2004 The Apache Software Foundation. * * 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.sun.org.apache.xerces.internal.impl.io; import java.io.InputStream; import java.io.IOException; import java.io.Reader; import com.sun.xml.internal.stream.util.BufferAllocator; import com.sun.xml.internal.stream.util.ThreadLocalBufferAllocator; /** * Reader for UCS-2 and UCS-4 encodings. * (i.e., encodings from ISO-10646-UCS-(2|4)). * * @xerces.internal * * @author Neil Graham, IBM * */ public class UCSReader extends Reader { // // Constants // /** Default byte buffer size (8192, larger than that of ASCIIReader * since it's reasonable to surmise that the average UCS-4-encoded * file should be 4 times as large as the average ASCII-encoded file). */ public static final int DEFAULT_BUFFER_SIZE = 8192; public static final short UCS2LE = 1; public static final short UCS2BE = 2; public static final short UCS4LE = 4; public static final short UCS4BE = 8; // // Data // /** Input stream. */ protected InputStream fInputStream; /** Byte buffer. */ protected byte[] fBuffer; // what kind of data we're dealing with protected short fEncoding; // // Constructors // /** * Constructs an ASCII reader from the specified input stream * using the default buffer size. The Endian-ness and whether this is * UCS-2 or UCS-4 needs also to be known in advance. * * @param inputStream The input stream. * @param encoding One of UCS2LE, UCS2BE, UCS4LE or UCS4BE. */ public UCSReader(InputStream inputStream, short encoding) { this(inputStream, DEFAULT_BUFFER_SIZE, encoding); } // <init>(InputStream, short) /** * Constructs an ASCII reader from the specified input stream * and buffer size. The Endian-ness and whether this is * UCS-2 or UCS-4 needs also to be known in advance. * * @param inputStream The input stream. * @param size The initial buffer size. * @param encoding One of UCS2LE, UCS2BE, UCS4LE or UCS4BE. */ public UCSReader(InputStream inputStream, int size, short encoding) { fInputStream = inputStream; BufferAllocator ba = ThreadLocalBufferAllocator.getBufferAllocator(); fBuffer = ba.getByteBuffer(size); if (fBuffer == null) { fBuffer = new byte[size]; } fEncoding = encoding; } // <init>(InputStream,int,short) // // Reader methods // /** * Read a single character. This method will block until a character is * available, an I/O error occurs, or the end of the stream is reached. * * <p> Subclasses that intend to support efficient single-character input * should override this method. * * @return The character read, as an integer in the range 0 to 127 * (<tt>0x00-0x7f</tt>), or -1 if the end of the stream has * been reached * * @exception IOException If an I/O error occurs */ public int read() throws IOException { int b0 = fInputStream.read() & 0xff; if (b0 == 0xff) return -1; int b1 = fInputStream.read() & 0xff; if (b1 == 0xff) return -1; if(fEncoding >=4) { int b2 = fInputStream.read() & 0xff; if (b2 == 0xff) return -1; int b3 = fInputStream.read() & 0xff; if (b3 == 0xff) return -1; System.err.println("b0 is " + (b0 & 0xff) + " b1 " + (b1 & 0xff) + " b2 " + (b2 & 0xff) + " b3 " + (b3 & 0xff)); if (fEncoding == UCS4BE) return (b0<<24)+(b1<<16)+(b2<<8)+b3; else return (b3<<24)+(b2<<16)+(b1<<8)+b0; } else { // UCS-2 if (fEncoding == UCS2BE) return (b0<<8)+b1; else return (b1<<8)+b0; } } // read():int /** * Read characters into a portion of an array. This method will block * until some input is available, an I/O error occurs, or the end of the * stream is reached. * * @param ch Destination buffer * @param offset Offset at which to start storing characters * @param length Maximum number of characters to read * * @return The number of characters read, or -1 if the end of the * stream has been reached * * @exception IOException If an I/O error occurs */ public int read(char ch[], int offset, int length) throws IOException { int byteLength = length << ((fEncoding >= 4)?2:1); if (byteLength > fBuffer.length) { byteLength = fBuffer.length; } int count = fInputStream.read(fBuffer, 0, byteLength); if(count == -1) return -1; // try and make count be a multiple of the number of bytes we're looking for if(fEncoding >= 4) { // BigEndian // this looks ugly, but it avoids an if at any rate... int numToRead = (4 - (count & 3) & 3); for(int i=0; i<numToRead; i++) { int charRead = fInputStream.read(); if(charRead == -1) { // end of input; something likely went wrong!A Pad buffer with nulls. for (int j = i;j<numToRead; j++) fBuffer[count+j] = 0; break; } else { fBuffer[count+i] = (byte)charRead; } } count += numToRead; } else { int numToRead = count & 1; if(numToRead != 0) { count++; int charRead = fInputStream.read(); if(charRead == -1) { // end of input; something likely went wrong!A Pad buffer with nulls. fBuffer[count] = 0; } else { fBuffer[count] = (byte)charRead; } } } // now count is a multiple of the right number of bytes int numChars = count >> ((fEncoding >= 4)?2:1); int curPos = 0; for (int i = 0; i < numChars; i++) { int b0 = fBuffer[curPos++] & 0xff; int b1 = fBuffer[curPos++] & 0xff; if(fEncoding >=4) { int b2 = fBuffer[curPos++] & 0xff; int b3 = fBuffer[curPos++] & 0xff; if (fEncoding == UCS4BE) ch[offset+i] = (char)((b0<<24)+(b1<<16)+(b2<<8)+b3); else ch[offset+i] = (char)((b3<<24)+(b2<<16)+(b1<<8)+b0); } else { // UCS-2 if (fEncoding == UCS2BE) ch[offset+i] = (char)((b0<<8)+b1); else ch[offset+i] = (char)((b1<<8)+b0); } } return numChars; } // read(char[],int,int) /** * Skip characters. This method will block until some characters are * available, an I/O error occurs, or the end of the stream is reached. * * @param n The number of characters to skip * * @return The number of characters actually skipped * * @exception IOException If an I/O error occurs */ public long skip(long n) throws IOException { // charWidth will represent the number of bits to move // n leftward to get num of bytes to skip, and then move the result rightward // to get num of chars effectively skipped. // The trick with &'ing, as with elsewhere in this dcode, is // intended to avoid an expensive use of / that might not be optimized // away. int charWidth = (fEncoding >=4)?2:1; long bytesSkipped = fInputStream.skip(n<<charWidth); if((bytesSkipped & (charWidth | 1)) == 0) return bytesSkipped >> charWidth; return (bytesSkipped >> charWidth) + 1; } // skip(long):long /** * Tell whether this stream is ready to be read. * * @return True if the next read() is guaranteed not to block for input, * false otherwise. Note that returning false does not guarantee that the * next read will block. * * @exception IOException If an I/O error occurs */ public boolean ready() throws IOException { return false; } // ready() /** * Tell whether this stream supports the mark() operation. */ public boolean markSupported() { return fInputStream.markSupported(); } // markSupported() /** * Mark the present position in the stream. Subsequent calls to reset() * will attempt to reposition the stream to this point. Not all * character-input streams support the mark() operation. * * @param readAheadLimit Limit on the number of characters that may be * read while still preserving the mark. After * reading this many characters, attempting to * reset the stream may fail. * * @exception IOException If the stream does not support mark(), * or if some other I/O error occurs */ public void mark(int readAheadLimit) throws IOException { fInputStream.mark(readAheadLimit); } // mark(int) /** * Reset the stream. If the stream has been marked, then attempt to * reposition it at the mark. If the stream has not been marked, then * attempt to reset it in some way appropriate to the particular stream, * for example by repositioning it to its starting point. Not all * character-input streams support the reset() operation, and some support * reset() without supporting mark(). * * @exception IOException If the stream has not been marked, * or if the mark has been invalidated, * or if the stream does not support reset(), * or if some other I/O error occurs */ public void reset() throws IOException { fInputStream.reset(); } // reset() /** * Close the stream. Once a stream has been closed, further read(), * ready(), mark(), or reset() invocations will throw an IOException. * Closing a previously-closed stream, however, has no effect. * * @exception IOException If an I/O error occurs */ public void close() throws IOException { BufferAllocator ba = ThreadLocalBufferAllocator.getBufferAllocator(); ba.returnByteBuffer(fBuffer); fBuffer = null; fInputStream.close(); } // close() } // class UCSReader
⏎ com/sun/org/apache/xerces/internal/impl/io/UCSReader.java
Or download all of them as a single archive file:
File name: jre-rt-com-1.8.0_191-src.zip File size: 8099783 bytes Release date: 2018-10-28 Download
⇒ Backup JDK 8 Installation Directory
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