Examples with ArrayDecoder sun.nio.cs.ArrayDecoder used on opensource projects

Example 1 with ArrayDecoder

use of sun.nio.cs.ArrayDecoder in project jdk8u_jdk by JetBrains.

the class StringCoding method decode.

static char[] decode(Charset cs, byte[] ba, int off, int len) {
    // (1)We never cache the "external" cs, the only benefit of creating
    // an additional StringDe/Encoder object to wrap it is to share the
    // de/encode() method. These SD/E objects are short-lifed, the young-gen
    // gc should be able to take care of them well. But the best approash
    // is still not to generate them if not really necessary.
    // (2)The defensive copy of the input byte/char[] has a big performance
    // impact, as well as the outgoing result byte/char[]. Need to do the
    // optimization check of (sm==null && classLoader0==null) for both.
    // (3)getClass().getClassLoader0() is expensive
    // (4)There might be a timing gap in isTrusted setting. getClassLoader0()
    // is only chcked (and then isTrusted gets set) when (SM==null). It is
    // possible that the SM==null for now but then SM is NOT null later
    // when safeTrim() is invoked...the "safe" way to do is to redundant
    // check (... && (isTrusted || SM == null || getClassLoader0())) in trim
    // but it then can be argued that the SM is null when the opertaion
    // is started...
    CharsetDecoder cd = cs.newDecoder();
    int en = scale(len, cd.maxCharsPerByte());
    char[] ca = new char[en];
    if (len == 0)
        return ca;
    boolean isTrusted = false;
    if (System.getSecurityManager() != null) {
        if (!(isTrusted = (cs.getClass().getClassLoader0() == null))) {
            ba = Arrays.copyOfRange(ba, off, off + len);
            off = 0;
        }
    }
    cd.onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE).reset();
    if (cd instanceof ArrayDecoder) {
        int clen = ((ArrayDecoder) cd).decode(ba, off, len, ca);
        return safeTrim(ca, clen, cs, isTrusted);
    } else {
        ByteBuffer bb = ByteBuffer.wrap(ba, off, len);
        CharBuffer cb = CharBuffer.wrap(ca);
        try {
            CoderResult cr = cd.decode(bb, cb, true);
            if (!cr.isUnderflow())
                cr.throwException();
            cr = cd.flush(cb);
            if (!cr.isUnderflow())
                cr.throwException();
        } catch (CharacterCodingException x) {
            // so this shouldn't happen
            throw new Error(x);
        }
        return safeTrim(ca, cb.position(), cs, isTrusted);
    }
}

Example 2 with ArrayDecoder

use of sun.nio.cs.ArrayDecoder in project jdk8u_jdk by JetBrains.

the class ZipCoder method toString.

String toString(byte[] ba, int length) {
    CharsetDecoder cd = decoder().reset();
    int len = (int) (length * cd.maxCharsPerByte());
    char[] ca = new char[len];
    if (len == 0)
        return new String(ca);
    // REPORT mode.
    if (isUTF8 && cd instanceof ArrayDecoder) {
        int clen = ((ArrayDecoder) cd).decode(ba, 0, length, ca);
        if (// malformed
        clen == -1)
            throw new IllegalArgumentException("MALFORMED");
        return new String(ca, 0, clen);
    }
    ByteBuffer bb = ByteBuffer.wrap(ba, 0, length);
    CharBuffer cb = CharBuffer.wrap(ca);
    CoderResult cr = cd.decode(bb, cb, true);
    if (!cr.isUnderflow())
        throw new IllegalArgumentException(cr.toString());
    cr = cd.flush(cb);
    if (!cr.isUnderflow())
        throw new IllegalArgumentException(cr.toString());
    return new String(ca, 0, cb.position());
}

Example 3 with ArrayDecoder

use of sun.nio.cs.ArrayDecoder in project checker-framework by typetools.

the class StringCoding method decode.

static char[] decode(Charset cs, byte[] ba, int off, int len) {
    // (1)We never cache the "external" cs, the only benefit of creating
    // an additional StringDe/Encoder object to wrap it is to share the
    // de/encode() method. These SD/E objects are short-lifed, the young-gen
    // gc should be able to take care of them well. But the best approash
    // is still not to generate them if not really necessary.
    // (2)The defensive copy of the input byte/char[] has a big performance
    // impact, as well as the outgoing result byte/char[]. Need to do the
    // optimization check of (sm==null && classLoader0==null) for both.
    // (3)getClass().getClassLoader0() is expensive
    // (4)There might be a timing gap in isTrusted setting. getClassLoader0()
    // is only chcked (and then isTrusted gets set) when (SM==null). It is
    // possible that the SM==null for now but then SM is NOT null later
    // when safeTrim() is invoked...the "safe" way to do is to redundant
    // check (... && (isTrusted || SM == null || getClassLoader0())) in trim
    // but it then can be argued that the SM is null when the opertaion
    // is started...
    CharsetDecoder cd = cs.newDecoder();
    int en = scale(len, cd.maxCharsPerByte());
    char[] ca = new char[en];
    if (len == 0)
        return ca;
    boolean isTrusted = false;
    if (System.getSecurityManager() != null) {
        if (!(isTrusted = (cs.getClass().getClassLoader0() == null))) {
            ba = Arrays.copyOfRange(ba, off, off + len);
            off = 0;
        }
    }
    cd.onMalformedInput(CodingErrorAction.REPLACE).onUnmappableCharacter(CodingErrorAction.REPLACE).reset();
    if (cd instanceof ArrayDecoder) {
        int clen = ((ArrayDecoder) cd).decode(ba, off, len, ca);
        return safeTrim(ca, clen, cs, isTrusted);
    } else {
        ByteBuffer bb = ByteBuffer.wrap(ba, off, len);
        CharBuffer cb = CharBuffer.wrap(ca);
        try {
            CoderResult cr = cd.decode(bb, cb, true);
            if (!cr.isUnderflow())
                cr.throwException();
            cr = cd.flush(cb);
            if (!cr.isUnderflow())
                cr.throwException();
        } catch (CharacterCodingException x) {
            // so this shouldn't happen
            throw new Error(x);
        }
        return safeTrim(ca, cb.position(), cs, isTrusted);
    }
}

Example 4 with ArrayDecoder

use of sun.nio.cs.ArrayDecoder in project checker-framework by typetools.

the class ZipCoder method toString.

String toString(byte[] ba, int length) {
    CharsetDecoder cd = decoder().reset();
    int len = (int) (length * cd.maxCharsPerByte());
    char[] ca = new char[len];
    if (len == 0)
        return new String(ca);
    // REPORT mode.
    if (isUTF8 && cd instanceof ArrayDecoder) {
        int clen = ((ArrayDecoder) cd).decode(ba, 0, length, ca);
        if (// malformed
        clen == -1)
            throw new IllegalArgumentException("MALFORMED");
        return new String(ca, 0, clen);
    }
    ByteBuffer bb = ByteBuffer.wrap(ba, 0, length);
    CharBuffer cb = CharBuffer.wrap(ca);
    CoderResult cr = cd.decode(bb, cb, true);
    if (!cr.isUnderflow())
        throw new IllegalArgumentException(cr.toString());
    cr = cd.flush(cb);
    if (!cr.isUnderflow())
        throw new IllegalArgumentException(cr.toString());
    return new String(ca, 0, cb.position());
}

Example 5 with ArrayDecoder

use of sun.nio.cs.ArrayDecoder in project spf4j by zolyfarkas.

the class Strings method decode.

@SuppressFBWarnings("SUA_SUSPICIOUS_UNINITIALIZED_ARRAY")
public static String decode(final CharsetDecoder cd, final byte[] ba, final int off, final int len) {
    if (len == 0) {
        return "";
    }
    int en = (int) (len * (double) cd.maxCharsPerByte());
    char[] ca = TLScratch.getCharsTmp(en);
    if (cd instanceof ArrayDecoder) {
        int clen = ((ArrayDecoder) cd).decode(ba, off, len, ca);
        return new String(ca, 0, clen);
    }
    cd.reset();
    ByteBuffer bb = ByteBuffer.wrap(ba, off, len);
    CharBuffer cb = CharBuffer.wrap(ca);
    try {
        CoderResult cr = cd.decode(bb, cb, true);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
        cr = cd.flush(cb);
        if (!cr.isUnderflow()) {
            cr.throwException();
        }
    } catch (CharacterCodingException x) {
        throw new UncheckedIOException(x);
    }
    return new String(ca, 0, cb.position());
}