Examples with Value org.h2.value.Value used on opensource projects

Example 11 with Value

use of org.h2.value.Value in project jackrabbit-oak by apache.

the class PersistentCacheCommand method dump.

static void dump(PrintWriter write, String path, String revision, String map, String fileName, boolean values, boolean raw) {
    MVStore s = new MVStore.Builder().readOnly().fileName(fileName).open();
    Map<String, String> meta = s.getMetaMap();
    boolean statsOnly = "".equalsIgnoreCase(map) && "".equals(revision) && "".equals(path);
    if (!statsOnly) {
        if (raw) {
            write.println("map" + "\t" + "key" + "\t" + "length" + "\t" + "value");
        } else if (values) {
            write.println("map,path,revision,p2,length,value");
        } else {
            write.println("map,path,revision,p2,length");
        }
    }
    for (String n : meta.keySet()) {
        if (n.startsWith("name.")) {
            String mapName = n.substring(5, n.length());
            if (map.length() > 0 && !map.equalsIgnoreCase(mapName)) {
                continue;
            }
            MVMap.Builder<String, String> b = new MVMap.Builder<String, String>().keyType(StringDataType.INSTANCE).valueType(StringDataType.INSTANCE);
            MVMap<String, String> m = s.openMap(mapName, b);
            if (statsOnly) {
                statistics(write, m);
            } else if (raw) {
                dumpRaw(write, m);
            } else {
                dump(write, m, path, revision, values);
            }
        }
    }
    s.close();
}

Example 12 with Value

use of org.h2.value.Value in project ignite by apache.

the class MapQueryResult method fetchNextPage.

/**
 * @param rows Collection to fetch into.
 * @param pageSize Page size.
 * @return {@code true} If there are no more rows available.
 */
synchronized boolean fetchNextPage(List<Value[]> rows, int pageSize) {
    assert lazyWorker == null || lazyWorker == MapQueryLazyWorker.currentWorker();
    if (closed)
        return true;
    boolean readEvt = cctx != null && cctx.name() != null && cctx.events().isRecordable(EVT_CACHE_QUERY_OBJECT_READ);
    page++;
    for (int i = 0; i < pageSize; i++) {
        if (!res.next())
            return true;
        Value[] row = res.currentRow();
        if (cpNeeded) {
            boolean copied = false;
            for (int j = 0; j < row.length; j++) {
                Value val = row[j];
                if (val instanceof GridH2ValueCacheObject) {
                    GridH2ValueCacheObject valCacheObj = (GridH2ValueCacheObject) val;
                    row[j] = new GridH2ValueCacheObject(valCacheObj.getCacheObject(), h2.objectContext()) {

                        @Override
                        public Object getObject() {
                            return getObject(true);
                        }
                    };
                    copied = true;
                }
            }
            if (i == 0 && !copied)
                // No copy on read caches, skip next checks.
                cpNeeded = false;
        }
        assert row != null;
        if (readEvt) {
            GridKernalContext ctx = h2.kernalContext();
            ctx.event().record(new CacheQueryReadEvent<>(ctx.discovery().localNode(), "SQL fields query result set row read.", EVT_CACHE_QUERY_OBJECT_READ, CacheQueryType.SQL.name(), cctx.name(), null, qry.query(), null, null, params, qrySrcNodeId, null, null, null, null, row(row)));
        }
        rows.add(res.currentRow());
    }
    return false;
}

Example 13 with Value

use of org.h2.value.Value in project ignite by apache.

the class H2Tree method compareRows.

/**
 * Compares two H2 rows.
 *
 * @param r1 Row 1.
 * @param r2 Row 2.
 * @return Compare result: see {@link Comparator#compare(Object, Object)} for values.
 */
public int compareRows(SearchRow r1, SearchRow r2) {
    if (r1 == r2)
        return 0;
    for (int i = 0, len = cols.length; i < len; i++) {
        int idx = columnIds[i];
        Value v1 = r1.getValue(idx);
        Value v2 = r2.getValue(idx);
        if (v1 == null || v2 == null) {
            // Can't compare further.
            return 0;
        }
        int c = compareValues(v1, v2);
        if (c != 0)
            return InlineIndexHelper.fixSort(c, cols[i].sortType);
    }
    return 0;
}

Example 14 with Value

use of org.h2.value.Value in project ignite by apache.

the class H2Tree method compare.

/**
 * {@inheritDoc}
 */
@SuppressWarnings("ForLoopReplaceableByForEach")
@Override
protected int compare(BPlusIO<SearchRow> io, long pageAddr, int idx, SearchRow row) throws IgniteCheckedException {
    if (inlineSize() == 0)
        return compareRows(getRow(io, pageAddr, idx), row);
    else {
        int off = io.offset(idx);
        int fieldOff = 0;
        int lastIdxUsed = 0;
        for (int i = 0; i < inlineIdxs.size(); i++) {
            InlineIndexHelper inlineIdx = inlineIdxs.get(i);
            Value v2 = row.getValue(inlineIdx.columnIndex());
            if (v2 == null)
                return 0;
            int c = inlineIdx.compare(pageAddr, off + fieldOff, inlineSize() - fieldOff, v2, comp);
            if (c == -2)
                break;
            lastIdxUsed++;
            if (c != 0)
                return c;
            fieldOff += inlineIdx.fullSize(pageAddr, off + fieldOff);
            if (fieldOff > inlineSize())
                break;
        }
        if (lastIdxUsed == cols.length)
            return 0;
        SearchRow rowData = getRow(io, pageAddr, idx);
        for (int i = lastIdxUsed, len = cols.length; i < len; i++) {
            IndexColumn col = cols[i];
            int idx0 = col.column.getColumnId();
            Value v2 = row.getValue(idx0);
            if (v2 == null) {
                // Can't compare further.
                return 0;
            }
            Value v1 = rowData.getValue(idx0);
            int c = compareValues(v1, v2);
            if (c != 0)
                return InlineIndexHelper.fixSort(c, col.sortType);
        }
        return 0;
    }
}

Example 15 with Value

use of org.h2.value.Value in project ignite by apache.

the class InlineIndexHelper method compareAsString.

/**
 * @param pageAddr Page address.
 * @param off Offset.
 * @param v Value to compare.
 * @param ignoreCase {@code True} if a case-insensitive comparison should be used.
 * @return Compare result ({@code -2} means we can't compare).
 */
private int compareAsString(long pageAddr, int off, Value v, boolean ignoreCase) {
    String s = v.getString();
    int len1 = PageUtils.getShort(pageAddr, off + 1) & 0x7FFF;
    int len2 = s.length();
    int c, c2, c3, c4, cntr1 = 0, cntr2 = 0;
    char v1, v2;
    // Skip length and type byte.
    long addr = pageAddr + off + 3;
    // Try reading ASCII.
    while (cntr1 < len1 && cntr2 < len2) {
        c = (int) GridUnsafe.getByte(addr) & 0xFF;
        if (c > 127)
            break;
        cntr1++;
        addr++;
        v1 = (char) c;
        v2 = s.charAt(cntr2++);
        if (ignoreCase) {
            v1 = Character.toUpperCase(v1);
            v2 = Character.toUpperCase(v2);
        }
        if (v1 != v2)
            return fixSort(Integer.signum(v1 - v2), sortType());
    }
    // read other
    while (cntr1 < len1 && cntr2 < len2) {
        c = (int) GridUnsafe.getByte(addr++) & 0xFF;
        switch(c >> 4) {
            case 0:
            case 1:
            case 2:
            case 3:
            case 4:
            case 5:
            case 6:
            case 7:
                /* 0xxxxxxx*/
                cntr1++;
                v1 = (char) c;
                break;
            case 12:
            case 13:
                /* 110x xxxx   10xx xxxx*/
                cntr1 += 2;
                if (cntr1 > len1)
                    throw new IllegalStateException("Malformed input (partial character at the end).");
                c2 = (int) GridUnsafe.getByte(addr++) & 0xFF;
                if ((c2 & 0xC0) != 0x80)
                    throw new IllegalStateException("Malformed input around byte: " + (cntr1 - 2));
                c = c & 0x1F;
                c = (c << 6) | (c2 & 0x3F);
                v1 = (char) c;
                break;
            case 14:
                /* 1110 xxxx  10xx xxxx  10xx xxxx */
                cntr1 += 3;
                if (cntr1 > len1)
                    throw new IllegalStateException("Malformed input (partial character at the end).");
                c2 = (int) GridUnsafe.getByte(addr++) & 0xFF;
                c3 = (int) GridUnsafe.getByte(addr++) & 0xFF;
                if (((c2 & 0xC0) != 0x80) || ((c3 & 0xC0) != 0x80))
                    throw new IllegalStateException("Malformed input around byte: " + (cntr1 - 3));
                c = c & 0x0F;
                c = (c << 6) | (c2 & 0x3F);
                c = (c << 6) | (c3 & 0x3F);
                v1 = (char) c;
                break;
            case 15:
                /* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx */
                cntr1 += 4;
                if (cntr1 > len1)
                    throw new IllegalStateException("Malformed input (partial character at the end).");
                c2 = (int) GridUnsafe.getByte(addr++) & 0xFF;
                c3 = (int) GridUnsafe.getByte(addr++) & 0xFF;
                c4 = (int) GridUnsafe.getByte(addr++) & 0xFF;
                if (((c & 0xF8) != 0xf0) || ((c2 & 0xC0) != 0x80) || ((c3 & 0xC0) != 0x80) || ((c4 & 0xC0) != 0x80))
                    throw new IllegalStateException("Malformed input around byte: " + (cntr1 - 4));
                c = c & 0x07;
                c = (c << 6) | (c2 & 0x3F);
                c = (c << 6) | (c3 & 0x3F);
                c = (c << 6) | (c4 & 0x3F);
                // Subtract 0x010000, c is now 0..fffff (20 bits)
                c = c - 0x010000;
                // height surrogate
                v1 = (char) (0xD800 + ((c >> 10) & 0x7FF));
                v2 = s.charAt(cntr2++);
                if (v1 != v2)
                    return fixSort(Integer.signum(v1 - v2), sortType());
                if (cntr2 == len2)
                    // Finish comparison here.
                    return fixSort(1, sortType());
                // Low surrogate.
                v1 = (char) (0xDC00 + (c & 0x3FF));
                v2 = s.charAt(cntr2++);
                if (v1 != v2)
                    return fixSort(Integer.signum(v1 - v2), sortType());
                continue;
            default:
                /* 10xx xxxx */
                throw new IllegalStateException("Malformed input around byte: " + cntr1);
        }
        v2 = s.charAt(cntr2++);
        if (ignoreCase) {
            v1 = Character.toUpperCase(v1);
            v2 = Character.toUpperCase(v2);
        }
        if (v1 != v2)
            return fixSort(Integer.signum(v1 - v2), sortType());
    }
    int res = cntr1 == len1 && cntr2 == len2 ? 0 : cntr1 == len1 ? -1 : 1;
    if (isValueFull(pageAddr, off))
        return fixSort(res, sortType());
    if (res >= 0)
        // b) Even truncated current value is longer, so that it's bigger.
        return fixSort(1, sortType());
    return -2;
}