99 lines
4.3 KiB
Java
99 lines
4.3 KiB
Java
/**
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*******************************************************************************
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* Copyright (C) 1996-2006, International Business Machines Corporation and *
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* others. All Rights Reserved. *
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*******************************************************************************
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*
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*******************************************************************************
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*/
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package com.android.icu.charset;
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import libcore.util.NativeAllocationRegistry;
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import java.nio.charset.Charset;
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import java.nio.charset.CharsetDecoder;
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import java.nio.charset.CharsetEncoder;
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import java.nio.charset.CodingErrorAction;
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/**
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* @hide
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*/
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public final class NativeConverter {
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private static final NativeAllocationRegistry registry = NativeAllocationRegistry
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.createMalloced(NativeConverter.class.getClassLoader(), getNativeFinalizer());
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/** All methods are static, no need to instantiate. */
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private NativeConverter() {}
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/* package */ static native int decode(long converterHandle, byte[] input, int inEnd,
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char[] output, int outEnd, int[] data, boolean flush);
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/* package */ static native int encode(long converterHandle, char[] input, int inEnd,
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byte[] output, int outEnd, int[] data, boolean flush);
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/* package */ static native long openConverter(String charsetName);
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/* package */ static native void closeConverter(long converterHandle);
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/* package */ static void registerConverter(Object referrent, long converterHandle) {
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registry.registerNativeAllocation(referrent, converterHandle);
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}
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/* package */ static native void resetByteToChar(long converterHandle);
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/* package */ static native void resetCharToByte(long converterHandle);
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/* package */ static native byte[] getSubstitutionBytes(long converterHandle);
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/* package */ static native int getMaxBytesPerChar(long converterHandle);
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/* package */ static native float getAveBytesPerChar(long converterHandle);
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/* package */ static native float getAveCharsPerByte(long converterHandle);
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/* package */ static native boolean contains(String converterName1, String converterName2);
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/* package */ static native String[] getAvailableCharsetNames();
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/* package */ static native Charset charsetForName(String charsetName);
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// Translates from Java's enum to the magic numbers #defined in "NativeConverter.cpp".
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private static int translateCodingErrorAction(CodingErrorAction action) {
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if (action == CodingErrorAction.REPORT) {
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return 0;
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} else if (action == CodingErrorAction.IGNORE) {
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return 1;
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} else if (action == CodingErrorAction.REPLACE) {
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return 2;
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} else {
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throw new AssertionError(); // Someone changed the enum.
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}
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}
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/* package */ static void setCallbackDecode(long converterHandle, CharsetDecoder decoder) {
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setCallbackDecode(converterHandle,
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translateCodingErrorAction(decoder.malformedInputAction()),
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translateCodingErrorAction(decoder.unmappableCharacterAction()),
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decoder.replacement());
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}
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private static native void setCallbackDecode(long converterHandle, int onMalformedInput, int onUnmappableInput, String subChars);
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/* package */ static void setCallbackEncode(long converterHandle, CharsetEncoder encoder) {
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setCallbackEncode(converterHandle,
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translateCodingErrorAction(encoder.malformedInputAction()),
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translateCodingErrorAction(encoder.unmappableCharacterAction()),
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encoder.replacement());
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}
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private static native void setCallbackEncode(long converterHandle, int onMalformedInput, int onUnmappableInput, byte[] subBytes);
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private static native long getNativeFinalizer();
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// Just the subset of error codes needed by CharsetDecoderICU/CharsetEncoderICU.
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/* package */ static final int U_ZERO_ERROR = 0;
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/* package */ static final int U_INVALID_CHAR_FOUND = 10;
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/* package */ static final int U_TRUNCATED_CHAR_FOUND = 11;
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/* package */ static final int U_ILLEGAL_CHAR_FOUND = 12;
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/* package */ static final int U_BUFFER_OVERFLOW_ERROR = 15;
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/* package */ static boolean U_FAILURE(int error) {
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return error > U_ZERO_ERROR;
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}
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}
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