mirror of
https://github.com/geometer/FBReaderJ.git
synced 2025-10-05 10:49:24 +02:00
tx => notx
This commit is contained in:
Nikolay Pultsin
parent
46d3762b53
commit
d595280b77
1 changed files with 155 additions and 155 deletions
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@ -1,155 +1,155 @@
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package org.amse.ys.zip;
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import java.io.*;
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final class MyBufferedInputStream extends InputStream {
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private final ZipFile.InputStreamHolder myStreamHolder;
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private InputStream myFileInputStream;
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private final byte[] myBuffer;
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int myBytesReady;
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int myPositionInBuffer;
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private int myCurrentPosition;
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public MyBufferedInputStream(ZipFile.InputStreamHolder streamHolder, int bufferSize) throws IOException {
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myStreamHolder = streamHolder;
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myFileInputStream = streamHolder.getInputStream();
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myBuffer = new byte[bufferSize];
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myBytesReady = 0;
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myPositionInBuffer = 0;
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}
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public MyBufferedInputStream(ZipFile.InputStreamHolder streamHolder) throws IOException {
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this(streamHolder, 1 << 10);
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}
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public int available() throws IOException {
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return (myFileInputStream.available() + myBytesReady);
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}
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int offset() {
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return myCurrentPosition;
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}
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public int read(byte[] b, int off, int len) throws IOException {
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int ready = (len < myBytesReady) ? len : myBytesReady;
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if (ready > 0) {
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System.arraycopy(myBuffer, myPositionInBuffer, b, off, ready);
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len -= ready;
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myBytesReady -= ready;
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myPositionInBuffer += ready;
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off += ready;
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}
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if (len > 0) {
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final int ready2 = myFileInputStream.read(b, off, len);
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if (ready2 >= 0) {
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ready += ready2;
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}
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}
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myCurrentPosition += ready;
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return (ready > 0) ? ready : -1;
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}
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public int read() throws IOException {
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myCurrentPosition++;
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if (myBytesReady <= 0) {
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myPositionInBuffer = 0;
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myBytesReady = myFileInputStream.read(myBuffer);
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if (myBytesReady <= 0) {
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return -1;
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}
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}
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myBytesReady--;
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return myBuffer[myPositionInBuffer++] & 255;
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}
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int read2Bytes() throws IOException {
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int low = read();
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int high = read();
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if (high < 0) {
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throw new ZipException("unexpected end of file at position " + offset());
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}
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return (high << 8) + low;
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}
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int read4Bytes() throws IOException {
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int firstByte = read();
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int secondByte = read();
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int thirdByte = read();
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int fourthByte = read();
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if (fourthByte < 0) {
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throw new ZipException("unexpected end of file at position " + offset());
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}
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return (fourthByte << 24) + (thirdByte << 16) + (secondByte << 8) + firstByte;
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}
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String readString(int stringLength) throws IOException {
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char[] array = new char[stringLength];
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for (int i = 0; i < stringLength; i++) {
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array[i] = (char)read();
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}
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return new String(array);
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}
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@Override
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public long skip(long n) throws IOException {
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if (myBytesReady >= n) {
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myBytesReady -= n;
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myPositionInBuffer += n;
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myCurrentPosition += n;
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return n;
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} else {
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long left = n - myBytesReady;
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myBytesReady = 0;
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left -= myFileInputStream.skip(left);
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while (left > 0) {
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int skipped = myFileInputStream.read(myBuffer, 0, Math.min((int)left, myBuffer.length));
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if (skipped <= 0) {
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break;
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}
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left -= skipped;
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}
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return n - left;
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}
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}
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public void backSkip(int n) throws IOException {
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if (n <= 0) {
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return;
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}
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myFileInputStream.close();
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myFileInputStream = myStreamHolder.getInputStream();
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myBytesReady = 0;
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myPositionInBuffer = 0;
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int position = myCurrentPosition - n;
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myCurrentPosition = 0;
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skip(position);
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}
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public void setPosition(int position) throws IOException {
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if (myCurrentPosition < position) {
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skip(position - myCurrentPosition);
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} else {
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backSkip(myCurrentPosition - position);
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}
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}
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/*
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public void setPosition(int position) throws IOException {
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if (myCurrentPosition < position) {
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skip(position - myCurrentPosition);
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} else {
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myFileInputStream.close();
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myFileInputStream = myStreamHolder.getInputStream();
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myBytesReady = 0;
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skip(position);
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myCurrentPosition = position;
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}
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}
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*/
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public void close() throws IOException {
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myFileInputStream.close();
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myBytesReady = 0;
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}
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}
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package org.amse.ys.zip;
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import java.io.*;
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final class MyBufferedInputStream extends InputStream {
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private final ZipFile.InputStreamHolder myStreamHolder;
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private InputStream myFileInputStream;
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private final byte[] myBuffer;
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int myBytesReady;
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int myPositionInBuffer;
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private int myCurrentPosition;
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public MyBufferedInputStream(ZipFile.InputStreamHolder streamHolder, int bufferSize) throws IOException {
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myStreamHolder = streamHolder;
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myFileInputStream = streamHolder.getInputStream();
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myBuffer = new byte[bufferSize];
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myBytesReady = 0;
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myPositionInBuffer = 0;
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}
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public MyBufferedInputStream(ZipFile.InputStreamHolder streamHolder) throws IOException {
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this(streamHolder, 1 << 10);
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}
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public int available() throws IOException {
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return (myFileInputStream.available() + myBytesReady);
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}
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int offset() {
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return myCurrentPosition;
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}
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public int read(byte[] b, int off, int len) throws IOException {
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int ready = (len < myBytesReady) ? len : myBytesReady;
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if (ready > 0) {
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System.arraycopy(myBuffer, myPositionInBuffer, b, off, ready);
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len -= ready;
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myBytesReady -= ready;
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myPositionInBuffer += ready;
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off += ready;
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}
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if (len > 0) {
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final int ready2 = myFileInputStream.read(b, off, len);
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if (ready2 >= 0) {
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ready += ready2;
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}
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}
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myCurrentPosition += ready;
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return (ready > 0) ? ready : -1;
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}
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public int read() throws IOException {
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myCurrentPosition++;
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if (myBytesReady <= 0) {
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myPositionInBuffer = 0;
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myBytesReady = myFileInputStream.read(myBuffer);
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if (myBytesReady <= 0) {
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return -1;
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}
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}
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myBytesReady--;
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return myBuffer[myPositionInBuffer++] & 255;
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}
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int read2Bytes() throws IOException {
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int low = read();
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int high = read();
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if (high < 0) {
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throw new ZipException("unexpected end of file at position " + offset());
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}
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return (high << 8) + low;
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}
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int read4Bytes() throws IOException {
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int firstByte = read();
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int secondByte = read();
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int thirdByte = read();
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int fourthByte = read();
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if (fourthByte < 0) {
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throw new ZipException("unexpected end of file at position " + offset());
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}
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return (fourthByte << 24) + (thirdByte << 16) + (secondByte << 8) + firstByte;
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}
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String readString(int stringLength) throws IOException {
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char[] array = new char[stringLength];
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for (int i = 0; i < stringLength; i++) {
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array[i] = (char)read();
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}
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return new String(array);
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}
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@Override
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public long skip(long n) throws IOException {
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if (myBytesReady >= n) {
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myBytesReady -= n;
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myPositionInBuffer += n;
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myCurrentPosition += n;
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return n;
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} else {
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long left = n - myBytesReady;
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myBytesReady = 0;
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left -= myFileInputStream.skip(left);
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while (left > 0) {
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int skipped = myFileInputStream.read(myBuffer, 0, Math.min((int)left, myBuffer.length));
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if (skipped <= 0) {
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break;
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}
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left -= skipped;
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}
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return n - left;
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}
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}
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public void backSkip(int n) throws IOException {
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if (n <= 0) {
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return;
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}
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myFileInputStream.close();
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myFileInputStream = myStreamHolder.getInputStream();
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myBytesReady = 0;
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myPositionInBuffer = 0;
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int position = myCurrentPosition - n;
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myCurrentPosition = 0;
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skip(position);
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}
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public void setPosition(int position) throws IOException {
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if (myCurrentPosition < position) {
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skip(position - myCurrentPosition);
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} else {
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backSkip(myCurrentPosition - position);
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}
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}
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/*
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public void setPosition(int position) throws IOException {
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if (myCurrentPosition < position) {
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skip(position - myCurrentPosition);
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} else {
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myFileInputStream.close();
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myFileInputStream = myStreamHolder.getInputStream();
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myBytesReady = 0;
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skip(position);
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myCurrentPosition = position;
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}
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}
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*/
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public void close() throws IOException {
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myFileInputStream.close();
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myBytesReady = 0;
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}
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}
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