ClassGraph 4.8.179 · nonapi.io.github.classgraph.fileslice.reader.ClassfileReader

Modifier and Type	Field and Description
private byte[]	arr Buffer.
private int	arrUsed The number of bytes used in arr.
private static final int	BUF_CHUNK_SIZE Read this many bytes each time there is a buffer underrun.
private int	classfileLengthHint The length of the classfile if known (because it is not deflated), or -1 if unknown (because it is deflated).
private int	currIdx The current read index within the slice.
private InputStream	inflaterInputStream If slice is deflated, a wrapper for `InflateInputStream`.
private static final int	INITIAL_BUF_SIZE Initial buffer size.
private RandomAccessReader	randomAccessReader If slice is not deflated, a `RandomAccessReader` for either the `ArraySlice` or `FileSlice` concrete subclass.
private Resource	resourceToClose The underlying resource to close when `ClassfileReader#close()` is called.

Access	Constructor and Description
public	ClassfileReader(final Slice the `Slice` to read. slice, final Resource the resource to close when `ClassfileReader#close()` is called, or null. resourceToClose) Constructor.
public	ClassfileReader(final InputStream the `InputStream` to read from. inputStream, final Resource the underlying resource to close when `ClassfileReader#close()` is called, or null. resourceToClose) Constructor for reader of module `InputStream` (which is not deflated).

Method Summary

Modifier and Type	Method and Description
public byte[]	Returns: the buffer. buf() Buf.
public void	bufferTo(final int the number of bytes to ensure have been buffered numBytes) Ensure that the given number of bytes have been read into the buffer from the beginning of the slice.
public void	close() Implements java.io.Closeable.close. Closes this stream and releases any system resources associated with it.
public int	Returns: the current read position. currPos() Curr pos.
public int	read(final long The offset to start reading from. srcOffset, final byte[] The byte array to write into. dstArr, final int The offset within the destination array to start writing at. dstArrStart, final int The number of bytes to read. numBytes) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read. Read bytes into a byte array.
public int	read(final long The offset to start reading from. srcOffset, final ByteBuffer The `ByteBuffer` to write into. dstBuf, final int The offset within the destination buffer to start writing at. dstBufStart, final int The number of bytes to read. numBytes) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read. Read bytes into a `ByteBuffer`.
public byte	readByte(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readByte. Read a byte at a specific offset (without changing the current cursor offset).
public byte	readByte() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readByte. Read a byte at the current cursor position.
public int	readInt(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readInt. Read a int at a specific offset (without changing the current cursor offset).
public int	readInt() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readInt. Read a int at the current cursor position.
public long	readLong(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readLong. Read a long at a specific offset (without changing the current cursor offset).
public long	readLong() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readLong. Read a long at the current cursor position.
public short	readShort(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readShort. Read a short at a specific offset (without changing the current cursor offset).
public short	readShort() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readShort. Read a short at the current cursor position.
public String	readString(final long The start offset of the string. offset, final int The number of bytes of the UTF8 encoding of the string. numBytes, final boolean If true, replace '/' with '.'. replaceSlashWithDot, final boolean If true, string final ';' character. stripLSemicolon) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec, optionally replacing '/' with '.', and optionally removing the prefix "L" and the suffix ";".
public String	readString(final int The number of bytes of the UTF8 encoding of the string. numBytes, final boolean If true, replace '/' with '.'. replaceSlashWithDot, final boolean If true, string final ';' character. stripLSemicolon) Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec, optionally replacing '/' with '.', and optionally removing the prefix "L" and the suffix ";".
public String	readString(final long The start offset of the string. offset, final int The number of bytes of the UTF8 encoding of the string. numBytes) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec.
public String	readString(final int The number of bytes of the UTF8 encoding of the string. numBytes) Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec.
private void	readTo(final int the target value for `arrUsed` (i.e. the number of bytes that must be filled in the array) targetArrUsed) Called when there is a buffer underrun to ensure there are sufficient bytes available in the array to read the given number of bytes at the given start index.
public int	readUnsignedByte(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedByte. Read an unsigned byte at a specific offset (without changing the current cursor offset).
public int	readUnsignedByte() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedByte. Read an unsigned byte at the current cursor position.
public long	readUnsignedInt(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedInt. Read a unsigned int at a specific offset (without changing the current cursor offset).
public long	readUnsignedInt() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedInt. Read a unsigned int at the current cursor position.
public int	readUnsignedShort(final long The buffer offset to read from. offset) Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedShort. Read a unsigned short at a specific offset (without changing the current cursor offset).
public int	readUnsignedShort() Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedShort. Read a unsigned short at the current cursor position.
public void	skip(final int The number of bytes to skip. bytesToSkip) Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.skip. Skip the given number of bytes.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

arr	back to summary
private byte[] arr Buffer.

arrUsed	back to summary
private int arrUsed The number of bytes used in arr.

BUF_CHUNK_SIZE	back to summary
private static final int BUF_CHUNK_SIZE Read this many bytes each time there is a buffer underrun. This is smaller than 8k by 8 bytes to prevent the doubling of the array size when the last chunk doesn't quite fit within the 16kb of INITIAL_BUF_SIZE, since the number of bytes that can be requested is up to 8 (for longs). Otherwise we could request to read to (8kb * 2 + 8), which would double the size of the buffer to 32kb, but if we only need to read between 8kb and 16kb, then we unnecessarily copied the buffer content one extra time.

classfileLengthHint	back to summary
private int classfileLengthHint The length of the classfile if known (because it is not deflated), or -1 if unknown (because it is deflated).

currIdx	back to summary
private int currIdx The current read index within the slice.

inflaterInputStream	back to summary
private InputStream inflaterInputStream If slice is deflated, a wrapper for `InflateInputStream`.

INITIAL_BUF_SIZE	back to summary
private static final int INITIAL_BUF_SIZE Initial buffer size. For most classfiles, only the first 16-64kb needs to be read (we don't read the bytecodes).

randomAccessReader	back to summary
private RandomAccessReader randomAccessReader If slice is not deflated, a `RandomAccessReader` for either the `ArraySlice` or `FileSlice` concrete subclass.

resourceToClose	back to summary
private Resource resourceToClose The underlying resource to close when `ClassfileReader#close()` is called.

ClassfileReader	back to summary
public ClassfileReader(final Slice slice, final Resource resourceToClose) throws IOException Constructor. Parameters slice:Slice the `Slice` to read. resourceToClose:Resource the resource to close when `ClassfileReader#close()` is called, or null. Exceptions IOException: If an inflater cannot be opened on the `Slice`.

ClassfileReader	back to summary
public ClassfileReader(final InputStream inputStream, final Resource resourceToClose) throws IOException Constructor for reader of module `InputStream` (which is not deflated). Parameters inputStream:InputStream the `InputStream` to read from. resourceToClose:Resource the underlying resource to close when `ClassfileReader#close()` is called, or null. Exceptions IOException: If an inflater cannot be opened on the `Slice`.

Method Detail

buf	back to summary
public byte[] buf() Buf. Returns:byte[] the buffer.

buf

back to summary

public byte[] buf()

Buf.

Returns:byte[]: the buffer.

bufferTo	back to summary
public void bufferTo(final int numBytes) throws IOException Ensure that the given number of bytes have been read into the buffer from the beginning of the slice. Parameters numBytes:int the number of bytes to ensure have been buffered Exceptions IOException: on EOF or if the bytes could not be read.

bufferTo

back to summary

public void bufferTo(final int numBytes) throws IOException

Ensure that the given number of bytes have been read into the buffer from the beginning of the slice.

Parameters

numBytes:int: the number of bytes to ensure have been buffered

Exceptions

IOException:: on EOF or if the bytes could not be read.

close back to summary

close	back to summary
public void close() Implements java.io.Closeable.close. Doc from java.io.Closeable.close. Closes this stream and releases any system resources associated with it. If the stream is already closed then invoking this method has no effect. As noted in `AutoCloseable#close()`, cases where the close may fail require careful attention. It is strongly advised to relinquish the underlying resources and to internally mark the `Closeable` as closed, prior to throwing the `IOException`. Annotations @Override

public void close()

Implements java.io.Closeable.close.

Doc from java.io.Closeable.close.

Closes this stream and releases any system resources associated with it. If the stream is already closed then invoking this method has no effect.

As noted in AutoCloseable#close(), cases where the close may fail require careful attention. It is strongly advised to relinquish the underlying resources and to internally mark the Closeable as closed, prior to throwing the IOException.

Annotations

@Override

currPos	back to summary
public int currPos() Curr pos. Returns:int the current read position.

currPos

back to summary

public int currPos()

Curr pos.

Returns:int: the current read position.

read	back to summary
public int read(final long srcOffset, final byte[] dstArr, final int dstArrStart, final int numBytes) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read. Read bytes into a byte array. Parameters srcOffset:long The offset to start reading from. dstArr:byte[] The byte array to write into. dstArrStart:int The offset within the destination array to start writing at. numBytes:int The number of bytes to read. Returns:int The number of bytes actually read, or -1 if no more bytes could be read. Annotations @Override Exceptions IOException: If there was an exception while reading.

read

back to summary

public int read(final long srcOffset, final byte[] dstArr, final int dstArrStart, final int numBytes) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read.

Read bytes into a byte array.

Parameters

srcOffset:long: The offset to start reading from.
dstArr:byte[]: The byte array to write into.
dstArrStart:int: The offset within the destination array to start writing at.
numBytes:int: The number of bytes to read.

Returns:int

The number of bytes actually read, or -1 if no more bytes could be read.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

read back to summary

read	back to summary
public int read(final long srcOffset, final ByteBuffer dstBuf, final int dstBufStart, final int numBytes) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read. Read bytes into a `ByteBuffer`. Parameters srcOffset:long The offset to start reading from. dstBuf:ByteBuffer The `ByteBuffer` to write into. dstBufStart:int The offset within the destination buffer to start writing at. numBytes:int The number of bytes to read. Returns:int The number of bytes actually read, or -1 if no more bytes could be read. Annotations @Override Exceptions IOException: If there was an exception while reading.

public int read(final long srcOffset, final ByteBuffer dstBuf, final int dstBufStart, final int numBytes) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.read.

Read bytes into a ByteBuffer.

Parameters

srcOffset:long: The offset to start reading from.
dstBuf:ByteBuffer: The ByteBuffer to write into.
dstBufStart:int: The offset within the destination buffer to start writing at.
numBytes:int: The number of bytes to read.

Returns:int

The number of bytes actually read, or -1 if no more bytes could be read.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readByte	back to summary
public byte readByte(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readByte. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readByte. Read a byte at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:byte The byte at the offset. Annotations @Override Exceptions IOException: If there was an exception while reading.

readByte

back to summary

public byte readByte(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readByte.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readByte.

Read a byte at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:byte

The byte at the offset.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readByte	back to summary
public byte readByte() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readByte. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readByte. Read a byte at the current cursor position. Returns:byte The byte at the current cursor position. Annotations @Override Exceptions IOException: If there was an exception while reading.

readByte

back to summary

public byte readByte() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readByte.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readByte.

Read a byte at the current cursor position.

Returns:byte

The byte at the current cursor position.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readInt	back to summary
public int readInt(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readInt. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readInt. Read a int at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:int The int at the offset. Annotations @Override Exceptions IOException: If there was an exception while reading.

readInt

back to summary

public int readInt(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readInt.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readInt.

Read a int at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:int

The int at the offset.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readInt	back to summary
public int readInt() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readInt. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readInt. Read a int at the current cursor position. Returns:int The int at the current cursor position. Annotations @Override Exceptions IOException: If there was an exception while reading.

readInt

back to summary

public int readInt() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readInt.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readInt.

Read a int at the current cursor position.

Returns:int

The int at the current cursor position.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readLong	back to summary
public long readLong(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readLong. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readLong. Read a long at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:long The long at the offset. Annotations @Override Exceptions IOException: If there was an exception while reading.

readLong

back to summary

public long readLong(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readLong.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readLong.

Read a long at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:long

The long at the offset.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readLong	back to summary
public long readLong() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readLong. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readLong. Read a long at the current cursor position. Returns:long The long at the current cursor position. Annotations @Override Exceptions IOException: If there was an exception while reading.

readLong

back to summary

public long readLong() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readLong.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readLong.

Read a long at the current cursor position.

Returns:long

The long at the current cursor position.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readShort	back to summary
public short readShort(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readShort. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readShort. Read a short at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:short The short at the offset. Annotations @Override Exceptions IOException: If there was an exception while reading.

readShort

back to summary

public short readShort(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readShort.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readShort.

Read a short at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:short

The short at the offset.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readShort	back to summary
public short readShort() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readShort. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readShort. Read a short at the current cursor position. Returns:short The short at the current cursor position. Annotations @Override Exceptions IOException: If there was an exception while reading.

readShort

back to summary

public short readShort() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readShort.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readShort.

Read a short at the current cursor position.

Returns:short

The short at the current cursor position.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readString	back to summary
public String readString(final long offset, final int numBytes, final boolean replaceSlashWithDot, final boolean stripLSemicolon) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec, optionally replacing '/' with '.', and optionally removing the prefix "L" and the suffix ";". Parameters offset:long The start offset of the string. numBytes:int The number of bytes of the UTF8 encoding of the string. replaceSlashWithDot:boolean If true, replace '/' with '.'. stripLSemicolon:boolean If true, string final ';' character. Returns:String The string. Annotations @Override Exceptions IOException: If an I/O exception occurs.

readString

back to summary

public String readString(final long offset, final int numBytes, final boolean replaceSlashWithDot, final boolean stripLSemicolon) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString.

Reads the "modified UTF8" format defined in the Java classfile spec, optionally replacing '/' with '.', and optionally removing the prefix "L" and the suffix ";".

Parameters

offset:long: The start offset of the string.
numBytes:int: The number of bytes of the UTF8 encoding of the string.
replaceSlashWithDot:boolean: If true, replace '/' with '.'.
stripLSemicolon:boolean: If true, string final ';' character.

Returns:String

The string.

Annotations

@Override

Exceptions

IOException:: If an I/O exception occurs.

readString	back to summary
public String readString(final int numBytes, final boolean replaceSlashWithDot, final boolean stripLSemicolon) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec, optionally replacing '/' with '.', and optionally removing the prefix "L" and the suffix ";". Parameters numBytes:int The number of bytes of the UTF8 encoding of the string. replaceSlashWithDot:boolean If true, replace '/' with '.'. stripLSemicolon:boolean If true, string final ';' character. Returns:String The string. Annotations @Override Exceptions IOException: If an I/O exception occurs.

readString

back to summary

public String readString(final int numBytes, final boolean replaceSlashWithDot, final boolean stripLSemicolon) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString.

Reads the "modified UTF8" format defined in the Java classfile spec, optionally replacing '/' with '.', and optionally removing the prefix "L" and the suffix ";".

Parameters

numBytes:int: The number of bytes of the UTF8 encoding of the string.
replaceSlashWithDot:boolean: If true, replace '/' with '.'.
stripLSemicolon:boolean: If true, string final ';' character.

Returns:String

The string.

Annotations

@Override

Exceptions

IOException:: If an I/O exception occurs.

readString	back to summary
public String readString(final long offset, final int numBytes) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec. Parameters offset:long The start offset of the string. numBytes:int The number of bytes of the UTF8 encoding of the string. Returns:String The string. Annotations @Override Exceptions IOException: If an I/O exception occurs.

readString

back to summary

public String readString(final long offset, final int numBytes) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readString.

Reads the "modified UTF8" format defined in the Java classfile spec.

Parameters

offset:long: The start offset of the string.
numBytes:int: The number of bytes of the UTF8 encoding of the string.

Returns:String

The string.

Annotations

@Override

Exceptions

IOException:: If an I/O exception occurs.

readString	back to summary
public String readString(final int numBytes) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString. Reads the "modified UTF8" format defined in the Java classfile spec. Parameters numBytes:int The number of bytes of the UTF8 encoding of the string. Returns:String The string. Annotations @Override Exceptions IOException: If an I/O exception occurs.

readString

back to summary

public String readString(final int numBytes) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readString.

Reads the "modified UTF8" format defined in the Java classfile spec.

Parameters

numBytes:int: The number of bytes of the UTF8 encoding of the string.

Returns:String

The string.

Annotations

@Override

Exceptions

IOException:: If an I/O exception occurs.

readTo back to summary

readTo	back to summary
private void readTo(final int targetArrUsed) throws IOException Called when there is a buffer underrun to ensure there are sufficient bytes available in the array to read the given number of bytes at the given start index. Parameters targetArrUsed:int the target value for `arrUsed` (i.e. the number of bytes that must be filled in the array) Exceptions IOException: Signals that an I/O exception has occurred.

private void readTo(final int targetArrUsed) throws IOException

Called when there is a buffer underrun to ensure there are sufficient bytes available in the array to read the given number of bytes at the given start index.

Parameters

targetArrUsed:int: the target value for arrUsed (i.e. the number of bytes that must be filled in the array)

Exceptions

IOException:: Signals that an I/O exception has occurred.

readUnsignedByte	back to summary
public int readUnsignedByte(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedByte. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedByte. Read an unsigned byte at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:int The unsigned byte at the offset. Annotations @Override Exceptions IOException: If there was an exception while reading.

readUnsignedByte

back to summary

public int readUnsignedByte(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedByte.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedByte.

Read an unsigned byte at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:int

The unsigned byte at the offset.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readUnsignedByte	back to summary
public int readUnsignedByte() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedByte. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedByte. Read an unsigned byte at the current cursor position. Returns:int The unsigned byte at the current cursor position. Annotations @Override Exceptions IOException: If there was an exception while reading.

readUnsignedByte

back to summary

public int readUnsignedByte() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedByte.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedByte.

Read an unsigned byte at the current cursor position.

Returns:int

The unsigned byte at the current cursor position.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readUnsignedInt	back to summary
public long readUnsignedInt(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedInt. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedInt. Read a unsigned int at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:long The int at the offset, as a long. Annotations @Override Exceptions IOException: If there was an exception while reading.

readUnsignedInt

back to summary

public long readUnsignedInt(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedInt.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedInt.

Read a unsigned int at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:long

The int at the offset, as a long.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readUnsignedInt	back to summary
public long readUnsignedInt() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedInt. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedInt. Read a unsigned int at the current cursor position. Returns:long The int at the current cursor position, as a long. Annotations @Override Exceptions IOException: If there was an exception while reading.

readUnsignedInt

back to summary

public long readUnsignedInt() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedInt.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedInt.

Read a unsigned int at the current cursor position.

Returns:long

The int at the current cursor position, as a long.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readUnsignedShort	back to summary
public int readUnsignedShort(final long offset) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedShort. Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedShort. Read a unsigned short at a specific offset (without changing the current cursor offset). Parameters offset:long The buffer offset to read from. Returns:int The unsigned short at the offset. Annotations @Override Exceptions IOException: If there was an exception while reading.

readUnsignedShort

back to summary

public int readUnsignedShort(final long offset) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedShort.

Doc from nonapi.io.github.classgraph.fileslice.reader.RandomAccessReader.readUnsignedShort.

Read a unsigned short at a specific offset (without changing the current cursor offset).

Parameters

offset:long: The buffer offset to read from.

Returns:int

The unsigned short at the offset.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

readUnsignedShort	back to summary
public int readUnsignedShort() throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedShort. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedShort. Read a unsigned short at the current cursor position. Returns:int The unsigned shortat the current cursor position. Annotations @Override Exceptions IOException: If there was an exception while reading.

readUnsignedShort

back to summary

public int readUnsignedShort() throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedShort.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.readUnsignedShort.

Read a unsigned short at the current cursor position.

Returns:int

The unsigned shortat the current cursor position.

Annotations

@Override

Exceptions

IOException:: If there was an exception while reading.

skip	back to summary
public void skip(final int bytesToSkip) throws IOException Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.skip. Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.skip. Skip the given number of bytes. Parameters bytesToSkip:int The number of bytes to skip. Annotations @Override Exceptions IOException: If there was an exception while reading.

skip

back to summary

public void skip(final int bytesToSkip) throws IOException

Implements nonapi.io.github.classgraph.fileslice.reader.SequentialReader.skip.

Doc from nonapi.io.github.classgraph.fileslice.reader.SequentialReader.skip.

Skip the given number of bytes.

Parameters