Move some constants in BinaryDictInputOutput to FormatSpec.
Change-Id: I6b12faf35b65238b9a64c82d4d1a6050f980e72emain
parent
e18fdf804a
commit
665592774c
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@ -39,8 +39,6 @@ import java.util.Stack;
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public final class BinaryDictIOUtils {
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public final class BinaryDictIOUtils {
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private static final boolean DBG = false;
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private static final boolean DBG = false;
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private static final int MSB24 = 0x800000;
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private static final int SINT24_MAX = 0x7FFFFF;
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private static final int MAX_JUMPS = 10000;
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private static final int MAX_JUMPS = 10000;
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private BinaryDictIOUtils() {
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private BinaryDictIOUtils() {
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@ -921,8 +919,8 @@ public final class BinaryDictIOUtils {
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// reached the end of the array.
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// reached the end of the array.
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final int linkAddressPosition = buffer.position();
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final int linkAddressPosition = buffer.position();
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int nextLink = buffer.readUnsignedInt24();
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int nextLink = buffer.readUnsignedInt24();
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if ((nextLink & MSB24) != 0) {
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if ((nextLink & FormatSpec.MSB24) != 0) {
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nextLink = -(nextLink & SINT24_MAX);
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nextLink = -(nextLink & FormatSpec.SINT24_MAX);
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}
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}
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if (nextLink == FormatSpec.NO_FORWARD_LINK_ADDRESS) {
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if (nextLink == FormatSpec.NO_FORWARD_LINK_ADDRESS) {
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/*
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/*
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@ -449,10 +449,6 @@ public final class BinaryDictInputOutput {
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}
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}
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}
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}
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private static final int UINT8_MAX = 0xFF;
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private static final int UINT16_MAX = 0xFFFF;
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private static final int UINT24_MAX = 0xFFFFFF;
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/**
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/**
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* Compute the size, in bytes, that an address will occupy.
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* Compute the size, in bytes, that an address will occupy.
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*
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*
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@ -464,22 +460,18 @@ public final class BinaryDictInputOutput {
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* @return the byte size.
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* @return the byte size.
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*/
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*/
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static int getByteSize(final int address) {
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static int getByteSize(final int address) {
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assert(address <= UINT24_MAX);
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assert(address <= FormatSpec.UINT24_MAX);
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if (!hasChildrenAddress(address)) {
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if (!hasChildrenAddress(address)) {
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return 0;
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return 0;
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} else if (Math.abs(address) <= UINT8_MAX) {
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} else if (Math.abs(address) <= FormatSpec.UINT8_MAX) {
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return 1;
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return 1;
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} else if (Math.abs(address) <= UINT16_MAX) {
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} else if (Math.abs(address) <= FormatSpec.UINT16_MAX) {
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return 2;
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return 2;
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} else {
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} else {
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return 3;
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return 3;
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}
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}
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}
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}
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private static final int SINT24_MAX = 0x7FFFFF;
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private static final int MSB8 = 0x80;
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private static final int MSB24 = 0x800000;
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// End utility methods.
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// End utility methods.
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// This method is responsible for finding a nice ordering of the nodes that favors run-time
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// This method is responsible for finding a nice ordering of the nodes that favors run-time
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@ -814,7 +806,8 @@ public final class BinaryDictInputOutput {
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buffer[index] = buffer[index + 1] = buffer[index + 2] = 0;
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buffer[index] = buffer[index + 1] = buffer[index + 2] = 0;
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} else {
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} else {
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final int absAddress = Math.abs(address);
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final int absAddress = Math.abs(address);
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buffer[index++] = (byte)((address < 0 ? MSB8 : 0) | (0xFF & (absAddress >> 16)));
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buffer[index++] =
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(byte)((address < 0 ? FormatSpec.MSB8 : 0) | (0xFF & (absAddress >> 16)));
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buffer[index++] = (byte)(0xFF & (absAddress >> 8));
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buffer[index++] = (byte)(0xFF & (absAddress >> 8));
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buffer[index++] = (byte)(0xFF & absAddress);
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buffer[index++] = (byte)(0xFF & absAddress);
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}
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}
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@ -978,8 +971,8 @@ public final class BinaryDictInputOutput {
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buffer[index] = buffer[index + 1] = buffer[index + 2] = 0;
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buffer[index] = buffer[index + 1] = buffer[index + 2] = 0;
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} else {
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} else {
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final int absAddress = Math.abs(address);
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final int absAddress = Math.abs(address);
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assert(absAddress <= SINT24_MAX);
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assert(absAddress <= FormatSpec.SINT24_MAX);
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buffer[index] = (byte)((address < 0 ? MSB8 : 0)
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buffer[index] = (byte)((address < 0 ? FormatSpec.MSB8 : 0)
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| ((absAddress >> 16) & 0xFF));
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| ((absAddress >> 16) & 0xFF));
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buffer[index + 1] = (byte)((absAddress >> 8) & 0xFF);
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buffer[index + 1] = (byte)((absAddress >> 8) & 0xFF);
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buffer[index + 2] = (byte)(absAddress & 0xFF);
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buffer[index + 2] = (byte)(absAddress & 0xFF);
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@ -1300,8 +1293,8 @@ public final class BinaryDictInputOutput {
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if (options.mSupportsDynamicUpdate) {
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if (options.mSupportsDynamicUpdate) {
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final int address = buffer.readUnsignedInt24();
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final int address = buffer.readUnsignedInt24();
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if (address == 0) return FormatSpec.NO_CHILDREN_ADDRESS;
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if (address == 0) return FormatSpec.NO_CHILDREN_ADDRESS;
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if ((address & MSB24) != 0) {
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if ((address & FormatSpec.MSB24) != 0) {
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return -(address & SINT24_MAX);
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return -(address & FormatSpec.SINT24_MAX);
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} else {
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} else {
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return address;
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return address;
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}
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}
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@ -1324,8 +1317,8 @@ public final class BinaryDictInputOutput {
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final FormatOptions formatOptions) {
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final FormatOptions formatOptions) {
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if (supportsDynamicUpdate(formatOptions)) {
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if (supportsDynamicUpdate(formatOptions)) {
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final int parentAddress = buffer.readUnsignedInt24();
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final int parentAddress = buffer.readUnsignedInt24();
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final int sign = ((parentAddress & MSB24) != 0) ? -1 : 1;
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final int sign = ((parentAddress & FormatSpec.MSB24) != 0) ? -1 : 1;
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return sign * (parentAddress & SINT24_MAX);
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return sign * (parentAddress & FormatSpec.SINT24_MAX);
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} else {
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} else {
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return FormatSpec.NO_PARENT_ADDRESS;
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return FormatSpec.NO_PARENT_ADDRESS;
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}
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}
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@ -263,6 +263,13 @@ public final class FormatSpec {
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static final int NOT_VALID_WORD = -99;
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static final int NOT_VALID_WORD = -99;
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static final int SIGNED_CHILDREN_ADDRESS_SIZE = 3;
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static final int SIGNED_CHILDREN_ADDRESS_SIZE = 3;
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static final int UINT8_MAX = 0xFF;
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static final int UINT16_MAX = 0xFFFF;
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static final int UINT24_MAX = 0xFFFFFF;
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static final int SINT24_MAX = 0x7FFFFF;
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static final int MSB8 = 0x80;
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static final int MSB24 = 0x800000;
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/**
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/**
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* Options about file format.
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* Options about file format.
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*/
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*/
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