opendap.dap

Class BytePrimitiveVector

java.lang.Object

opendap.dap.DAPNode

opendap.dap.PrimitiveVector

opendap.dap.BytePrimitiveVector

All Implemented Interfaces:

Serializable, Cloneable, ClientIO

public class BytePrimitiveVector
extends PrimitiveVector

A vector of bytes.

Version:

$Revision: 15901 $

Author:

jehamby

See Also:

PrimitiveVector, Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class opendap.dap.DAPNode

DAPNode.CloneMap

Field Summary

Fields inherited from class opendap.dap.DAPNode

_nameClear, _nameEncoded, log

Constructor Summary

Constructors

Constructor and Description
BytePrimitiveVector(BaseType var) Constructs a new BytePrimitiveVector.

Method Summary

Methods

Modifier and Type	Method and Description
DAPNode	cloneDAG(DAPNode.CloneMap map) Returns a clone of this Attribute.
void	deserialize(DataInputStream source, ServerVersion sv, StatusUI statusUI) Reads data from a DataInputStream.
void	externalize(DataOutputStream sink) Writes data to a DataOutputStream.
void	externalize(DataOutputStream sink, int start, int stop, int stride) Write a subset of the data to a DataOutputStream.
Object	getInternalStorage() Returns (a reference to) the internal storage for this PrimitiveVector object.
int	getLength() Returns the number of elements in the array.
byte	getValue(int i) Return the i'th value as a byte.
void	printSingleVal(PrintWriter os, int index) Prints the value of a single variable in this vector.
void	printVal(PrintWriter os, String space) Prints the value of all variables in this vector.
void	setInternalStorage(Object o) Set the internal storage for PrimitiveVector.
void	setLength(int len) Sets the number of elements in the array.
void	setValue(int i, byte newVal) Set the i'th value of the array.
PrimitiveVector	subset(int start, int stop, int stride) Create a new primitive vector using a subset of the data.

Methods inherited from class opendap.dap.PrimitiveVector

getTemplate, getTypeName, printDecl, printDecl

Methods inherited from class opendap.dap.DAPNode

clone, cloneDAG, getClearName, getEncodedName, getParent, isProject, setClearName, setEncodedName, setParent, setProject, setProject, setProjected

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BytePrimitiveVector

public BytePrimitiveVector(BaseType var)

Constructs a new BytePrimitiveVector.

Parameters:

var - the template BaseType to use.

Method Detail

getLength

public int getLength()

Returns the number of elements in the array.

Specified by:

getLength in class PrimitiveVector

Returns:

the number of elements in the array.

setLength

public void setLength(int len)

Sets the number of elements in the array. Allocates a new primitive array of the desired size. Note that if this is called multiple times, the old array and its contents will be lost.

Only called inside of deserialize method or in derived classes on server.

Specified by:

setLength in class PrimitiveVector

Parameters:

len - the number of elements in the array.

getValue

public final byte getValue(int i)

Return the i'th value as a byte.

Parameters:

i - the index of the value to return.

Returns:

the i'th value.

setValue

public final void setValue(int i,
            byte newVal)

Set the i'th value of the array.

Parameters:

i - the index of the value to set.

newVal - the new value.

printVal

public final void printVal(PrintWriter os,
            String space)

Prints the value of all variables in this vector. This method is primarily intended for debugging OPeNDAP applications and text-based clients such as geturl.

Specified by:

printVal in class PrimitiveVector

Parameters:

os - the PrintWriter on which to print the value.

space - this value is passed to the printDecl method, and controls the leading spaces of the output.

See Also:

BaseType.printVal(PrintWriter, String, boolean)

printSingleVal

public void printSingleVal(PrintWriter os,
                  int index)

Prints the value of a single variable in this vector. method is used by DArray's printVal method.

Specified by:

printSingleVal in class PrimitiveVector

Parameters:

os - the PrintWriter on which to print the value.

index - the index of the variable to print.

See Also:

DArray.printVal(PrintWriter, String, boolean)

deserialize

public void deserialize(DataInputStream source,
               ServerVersion sv,
               StatusUI statusUI)
                 throws IOException,
                        EOFException,
                        DataReadException

Reads data from a DataInputStream. This method is only used on the client side of the OPeNDAP client/server connection.

Specified by:

deserialize in interface ClientIO

Specified by:

deserialize in class PrimitiveVector

Parameters:

source - a DataInputStream to read from.

sv - The ServerVersion returned by the server. (used by DSequence to determine which protocol version was used).

statusUI - The StatusUI object to use for GUI updates and user cancellation notification (may be null).

Throws:

DataReadException - when invalid data is read, or if the user cancels the download.

EOFException - if EOF is found before the variable is completely deserialized.

IOException - thrown on any other InputStream exception.

See Also:

ClientIO.deserialize(DataInputStream, ServerVersion, StatusUI)

externalize

public void externalize(DataOutputStream sink)
                 throws IOException

Writes data to a DataOutputStream. This method is used primarily by GUI clients which need to download OPeNDAP data, manipulate it, and then re-save it as a binary file.

Specified by:

externalize in interface ClientIO

Specified by:

externalize in class PrimitiveVector

Parameters:

sink - a DataOutputStream to write to.

Throws:

IOException - thrown on any OutputStream exception.

externalize

public void externalize(DataOutputStream sink,
               int start,
               int stop,
               int stride)
                 throws IOException

Write a subset of the data to a DataOutputStream.

Parameters:

sink - a DataOutputStream to write to.

start - starting index (i=start)

stop - ending index (i<=stop)

stride - index stride (i+=stride)

Throws:

IOException - thrown on any OutputStream exception.

subset

public PrimitiveVector subset(int start,
                     int stop,
                     int stride)

Create a new primitive vector using a subset of the data.

Specified by:

subset in class PrimitiveVector

Parameters:

start - starting index (i=start)

stop - ending index (i<=stop)

stride - index stride (i+=stride)

Returns:

new primitive vector, of type BytePrimitiveVector.

getInternalStorage

public Object getInternalStorage()

Returns (a reference to) the internal storage for this PrimitiveVector object.

WARNING:

Because this method breaks encapsulation rules the user must beware! If we (the OPeNDAP prgramming team) choose to change the internal representation(s) of these types your code will probably break.

This method is provided as an optimization to eliminate massive copying of data.

Specified by:

getInternalStorage in class PrimitiveVector

Returns:

The internal array of bytes.

setInternalStorage

public void setInternalStorage(Object o)

Set the internal storage for PrimitiveVector.

WARNING:

Because this method breaks encapsulation rules the user must beware! If we (the OPeNDAP prgramming team) choose to change the internal representation(s) of these types your code will probably break.

This method is provided as an optimization to eliminate massive copying of data.

Specified by:

setInternalStorage in class PrimitiveVector

cloneDAG

public DAPNode cloneDAG(DAPNode.CloneMap map)
                 throws CloneNotSupportedException

Returns a clone of this Attribute. See DAPNode.cloneDag()

Overrides:

cloneDAG in class PrimitiveVector

Parameters:

map - track previously cloned nodes

Returns:

a clone of this Attribute.

Throws:

CloneNotSupportedException