Examples of java.nio.charset.CharsetEncoder.encode()

java.nio.charset.CharsetEncoder.encode()
This is a facade method for encoding operation.
This method encodes the remaning character sequence of the given character buffer into a new byte buffer. This method performs a complete encoding operation, resets at first, then encodes, and flushes at last.

This method should not be invoked if another encode operation is ongoing.
@param in the input buffer @return a new ByteBuffer containing the the bytes producedby this encoding operation. The buffer's limit will be the position of last byte in buffer, and the position will be zero @throws IllegalStateException if another encoding operation is ongoing @throws MalformedInputException if illegal input character sequence for this charset encountered, and the action for malformed error is {@link CodingErrorAction#REPORT CodingErrorAction.REPORT} @throws UnmappableCharacterException if legal but unmappable input character sequence for this charset encountered, and the action for unmappable character error is {@link CodingErrorAction#REPORT CodingErrorAction.REPORT}. Unmappable means the Unicode character sequence at the input buffer's current postion cannot be mapped to a equivalent byte sequence. @throws CharacterCodingException if other exception happened during the encode operation

        
        us.limit(limit_us + 1);
        us.position(1);
        bs.limit(3);
        bs.position(0);
        result = encoder.encode(us, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow Error should have occured while encoding UTF-8 (9).");
        }  
        
        us.clear();

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        us2 = us.asReadOnlyBuffer();
        us2.limit(limit_us);
        us2.position(0);
        bs.limit(1);
        bs.position(0);
        result = encoder.encode(us2, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow Error should have occured while encoding UTF-8 (10).");
        }
        
        encoder.reset();

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        us2.limit(limit_us);
        us2.position(0);
        bs.limit(2);
        bs.position(0);
        result = encoder.encode(us2, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow Error should have occured while encoding UTF-8 (11).");
        }
        
        encoder.reset();

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        us2.limit(limit_us);
        us2.position(0);
        bs.limit(3);
        bs.position(0);
        result = encoder.encode(us2, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow Error should have occured while encoding UTF-8 (12).");
        }
        
        encoder.reset();

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        us2.limit(limit_us);
        us2.position(0);
        bs.limit(4);
        bs.position(0);
        result = encoder.encode(us2, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow Error should have occured while encoding UTF-8 (13).");
        }
        
        us.clear();

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        us.limit(1);
        us.position(0);
        bs.limit(4);
        bs.position(0);
        
        result = encoder.encode(us, bs, true);
        us.limit(3);
        us.position(0);
        bs.limit(3);
        bs.position(0);
        result = encoder.encode(us, bs, true);

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        result = encoder.encode(us, bs, true);
        us.limit(3);
        us.position(0);
        bs.limit(3);
        bs.position(0);
        result = encoder.encode(us, bs, true);
        if (!result.isOverflow()) {
            errln("Overflow buffer while encoding UTF-16 should have occurred.");
        }   
        
        us.clear();

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            encoder.reset();
            cb.position(0);
            bb.position(0);
            ((CharsetEncoderICU)encoder).setFromUCallback(CoderResult.unmappableForLength(1), CharsetCallback.FROM_U_CALLBACK_ESCAPE, context1[i]); // This callback is valid.
            
            result = encoder.encode(cb, bb, true);
            if (result.isError()) {
                errln("Error occurred while testing of callbacks for ISO-2022-JP encoder.");
            }
        }

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            encoder.reset();
            cb.position(0);
            bb.position(0);
            ((CharsetEncoderICU)encoder).setFromUCallback(CoderResult.unmappableForLength(1), CharsetCallback.FROM_U_CALLBACK_SKIP, context3[i]); 
            
            result = encoder.encode(cb, bb, true);
            if (result.isError() && i == 0) {
                errln("Error occurred while testing of callbacks for ISO-2022-JP encoder.");
            }
        }

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            encoder.reset();
            cb.position(0);
            bb.position(0);
            ((CharsetEncoderICU)encoder).setFromUCallback(CoderResult.unmappableForLength(1), CharsetCallback.FROM_U_CALLBACK_SUBSTITUTE, context3[i]); 
            
            result = encoder.encode(cb, bb, true);
            if (result.isError() && i == 0) {
                errln("Error occurred while testing of callbacks for ISO-2022-JP encoder.");
            }
        }

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