Difference between revisions of "READERNAME StreamReaderFormatter.java"
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[[category:developerDoc]][[category:emulatorDoc]] | [[category:developerDoc]][[category:emulatorDoc]] | ||
This class handles how bytes should be read in from TCP Socket Most of the time, a reader will not need to implement this class and can instead use either the GenericByteStreamReader or the GenericCharStreamReader. If it does need this method, this class will need to implement the AbstractStreamReader interface | This class handles how bytes should be read in from TCP Socket Most of the time, a reader will not need to implement this class and can instead use either the GenericByteStreamReader or the GenericCharStreamReader. If it does need this method, this class will need to implement the AbstractStreamReader interface | ||
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This method should read in bytes from the TCP socket | This method should read in bytes from the TCP socket | ||
| − | + | <pre>public abstract byte[] read() throws IOException;</pre> | |
==Arguments== | ==Arguments== | ||
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==Reference Implementation== | ==Reference Implementation== | ||
This is the implementation of the read method in the GenericByteStreamReader. | This is the implementation of the read method in the GenericByteStreamReader. | ||
| − | + | <pre> | |
public byte[] read() throws IOException { | public byte[] read() throws IOException { | ||
| − | ArrayList | + | ArrayList<Byte> bytes = new ArrayList<Byte>(); |
int b = in.read(); | int b = in.read(); | ||
while (in.available() != 0) { | while (in.available() != 0) { | ||
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/* If there is nothing on the buffer, return null */ | /* If there is nothing on the buffer, return null */ | ||
if (bytes.isEmpty() || bytes.get(0)==-1) { | if (bytes.isEmpty() || bytes.get(0)==-1) { | ||
| − | logger.debug( | + | logger.debug("returning bytes is null"); |
return null; | return null; | ||
} | } | ||
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byte[] retVal = new byte[bytes.size()]; | byte[] retVal = new byte[bytes.size()]; | ||
| − | logger.debug( | + | logger.debug("returning bytes"); |
| − | for (int i = 0; i | + | for (int i = 0; i < bytes.size(); i++) { |
retVal[i] = bytes.get(i); | retVal[i] = bytes.get(i); | ||
} | } | ||
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} | } | ||
| − | + | </pre> | |
Revision as of 23:22, 23 November 2010
This class handles how bytes should be read in from TCP Socket Most of the time, a reader will not need to implement this class and can instead use either the GenericByteStreamReader or the GenericCharStreamReader. If it does need this method, this class will need to implement the AbstractStreamReader interface
read
This method should read in bytes from the TCP socket
<pre>public abstract byte[] read() throws IOException;</pre>
Arguments
Return Value
bytes that were read
Reference Implementation
This is the implementation of the read method in the GenericByteStreamReader. <pre> public byte[] read() throws IOException { ArrayList<Byte> bytes = new ArrayList<Byte>(); int b = in.read(); while (in.available() != 0) { bytes.add((byte) b); b = in.read(); } bytes.add((byte)b); /* If there is nothing on the buffer, return null */ if (bytes.isEmpty() || bytes.get(0)==-1) { logger.debug("returning bytes is null"); return null; } /* Else return the bytes */ else { byte[] retVal = new byte[bytes.size()];
logger.debug("returning bytes"); for (int i = 0; i < bytes.size(); i++) { retVal[i] = bytes.get(i); } return retVal; }
} </pre>
