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/**
*******************************************************************************
* Copyright (C) 1996-2006, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*
*******************************************************************************
*/
package com.android.icu.charset;
import libcore.util.NativeAllocationRegistry;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.CodingErrorAction;
public final class NativeConverter {
private static final NativeAllocationRegistry registry = new NativeAllocationRegistry(
NativeConverter.class.getClassLoader(), getNativeFinalizer(), getNativeSize());
public static native int decode(long converterHandle, byte[] input, int inEnd,
char[] output, int outEnd, int[] data, boolean flush);
public static native int encode(long converterHandle, char[] input, int inEnd,
byte[] output, int outEnd, int[] data, boolean flush);
public static native long openConverter(String charsetName);
public static native void closeConverter(long converterHandle);
public static void registerConverter(Object referrent, long converterHandle) {
registry.registerNativeAllocation(referrent, converterHandle);
}
public static native void resetByteToChar(long converterHandle);
public static native void resetCharToByte(long converterHandle);
public static native byte[] getSubstitutionBytes(long converterHandle);
public static native int getMaxBytesPerChar(long converterHandle);
public static native float getAveBytesPerChar(long converterHandle);
public static native float getAveCharsPerByte(long converterHandle);
public static native boolean contains(String converterName1, String converterName2);
@libcore.api.IntraCoreApi
public static native String[] getAvailableCharsetNames();
@libcore.api.IntraCoreApi
public static native Charset charsetForName(String charsetName);
// Translates from Java's enum to the magic numbers #defined in "NativeConverter.cpp".
private static int translateCodingErrorAction(CodingErrorAction action) {
if (action == CodingErrorAction.REPORT) {
return 0;
} else if (action == CodingErrorAction.IGNORE) {
return 1;
} else if (action == CodingErrorAction.REPLACE) {
return 2;
} else {
throw new AssertionError(); // Someone changed the enum.
}
}
public static void setCallbackDecode(long converterHandle, CharsetDecoder decoder) {
setCallbackDecode(converterHandle,
translateCodingErrorAction(decoder.malformedInputAction()),
translateCodingErrorAction(decoder.unmappableCharacterAction()),
decoder.replacement());
}
private static native void setCallbackDecode(long converterHandle, int onMalformedInput, int onUnmappableInput, String subChars);
public static void setCallbackEncode(long converterHandle, CharsetEncoder encoder) {
setCallbackEncode(converterHandle,
translateCodingErrorAction(encoder.malformedInputAction()),
translateCodingErrorAction(encoder.unmappableCharacterAction()),
encoder.replacement());
}
private static native void setCallbackEncode(long converterHandle, int onMalformedInput, int onUnmappableInput, byte[] subBytes);
public static native long getNativeFinalizer();
public static native long getNativeSize();
// Just the subset of error codes needed by CharsetDecoderICU/CharsetEncoderICU.
public static final int U_ZERO_ERROR = 0;
public static final int U_INVALID_CHAR_FOUND = 10;
public static final int U_TRUNCATED_CHAR_FOUND = 11;
public static final int U_ILLEGAL_CHAR_FOUND = 12;
public static final int U_BUFFER_OVERFLOW_ERROR = 15;
public static boolean U_FAILURE(int error) {
return error > U_ZERO_ERROR;
}
}
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