Examples with TDBException org.apache.jena.tdb.TDBException used on opensource projects

Example 11 with TDBException

use of org.apache.jena.tdb.TDBException in project jena by apache.

the class NodeTableCache method testForConsistency.

private void testForConsistency() {
    Iterator<Node> iter1 = Iter.toList(node2id_Cache.keys()).iterator();
    for (; iter1.hasNext(); ) {
        Node n = iter1.next();
        NodeId nId = node2id_Cache.getIfPresent(n);
        if (!id2node_Cache.containsKey(nId))
            throw new TDBException("Inconsistent: " + n + " => " + nId);
        if (notPresent.contains(n))
            throw new TDBException("Inconsistent: " + n + " in notPresent cache (1)");
    }
    Iterator<NodeId> iter2 = Iter.toList(id2node_Cache.keys()).iterator();
    for (; iter2.hasNext(); ) {
        NodeId nId = iter2.next();
        Node n = id2node_Cache.getIfPresent(nId);
        if (!node2id_Cache.containsKey(n))
            throw new TDBException("Inconsistent: " + nId + " => " + n);
        if (notPresent.contains(n))
            throw new TDBException("Inconsistent: " + n + " in notPresent cache (2)");
    }
}

Example 12 with TDBException

use of org.apache.jena.tdb.TDBException in project jena by apache.

the class NodeTableNative method accessIndex.

protected final NodeId accessIndex(Node node, boolean create) {
    Hash hash = new Hash(nodeHashToId.getRecordFactory().keyLength());
    setHash(hash, node);
    byte[] k = hash.getBytes();
    // Key only.
    Record r = nodeHashToId.getRecordFactory().create(k);
    synchronized (// Pair to readNodeFromTable.
    this) {
        // Key and value, or null
        Record r2 = nodeHashToId.find(r);
        if (r2 != null) {
            // Found.  Get the NodeId.
            NodeId id = NodeId.create(r2.getValue(), 0);
            return id;
        }
        // Not found.
        if (!create)
            return NodeId.NodeDoesNotExist;
        // Write the node, which allocates an id for it.
        NodeId id = writeNodeToTable(node);
        // Update the r record with the new id.
        // r.value := id bytes ; 
        id.toBytes(r.getValue(), 0);
        // Put in index - may appear because of concurrency
        if (!nodeHashToId.add(r))
            throw new TDBException("NodeTableBase::nodeToId - record mysteriously appeared");
        return id;
    }
}

Example 13 with TDBException

use of org.apache.jena.tdb.TDBException in project jena by apache.

the class TupleIndexRecord method findWorker.

private Iterator<Tuple<NodeId>> findWorker(Tuple<NodeId> patternNaturalOrder, boolean partialScanAllowed, boolean fullScanAllowed) {
    if (Check) {
        if (tupleLength != patternNaturalOrder.len())
            throw new TDBException(String.format("Mismatch: tuple length %d / index for length %d", patternNaturalOrder.len(), tupleLength));
    }
    // Convert to index order.
    Tuple<NodeId> pattern = colMap.map(patternNaturalOrder);
    // Canonical form.
    int numSlots = 0;
    // Index of last leading pattern NodeId. Start less
    int leadingIdx = -2;
    // than numSlots-1
    boolean leading = true;
    // Records.
    Record minRec = factory.createKeyOnly();
    Record maxRec = factory.createKeyOnly();
    // Set the prefixes.
    for (int i = 0; i < pattern.len(); i++) {
        NodeId X = pattern.get(i);
        if (NodeId.isAny(X)) {
            X = null;
            // No longer seting leading key slots.
            leading = false;
            continue;
        }
        numSlots++;
        if (leading) {
            leadingIdx = i;
            Bytes.setLong(X.getId(), minRec.getKey(), i * SizeOfNodeId);
            Bytes.setLong(X.getId(), maxRec.getKey(), i * SizeOfNodeId);
        }
    }
    // Is it a simple existence test?
    if (numSlots == pattern.len()) {
        if (index.contains(minRec))
            return new SingletonIterator<>(pattern);
        else
            return new NullIterator<>();
    }
    Iterator<Record> iter = null;
    if (leadingIdx < 0) {
        if (!fullScanAllowed)
            return null;
        // System.out.println("Full scan") ;
        // Full scan necessary
        iter = index.iterator();
    } else {
        // Adjust the maxRec.
        NodeId X = pattern.get(leadingIdx);
        // Set the max Record to the leading NodeIds, +1.
        // Example, SP? inclusive to S(P+1)? exclusive where ? is zero.
        Bytes.setLong(X.getId() + 1, maxRec.getKey(), leadingIdx * SizeOfNodeId);
        iter = index.iterator(minRec, maxRec);
    }
    Iterator<Tuple<NodeId>> tuples = Iter.map(iter, item -> TupleLib.tuple(item, colMap));
    if (leadingIdx < numSlots - 1) {
        if (!partialScanAllowed)
            return null;
        // Didn't match all defined slots in request.
        // Partial or full scan needed.
        // pattern.unmap(colMap) ;
        tuples = TupleIndex.scan(tuples, patternNaturalOrder);
    }
    return tuples;
}

Example 14 with TDBException

use of org.apache.jena.tdb.TDBException in project jena by apache.

the class LocationLock method takeLock.

private void takeLock(int pid) {
    File lockFile = getLockFile();
    checkLockFileForWrite(lockFile);
    // Write our PID to the lock file
    try (BufferedWriter writer = new BufferedWriter(new FileWriter(lockFile))) {
        writer.write(Integer.toString(pid));
        writer.close();
    } catch (IOException e) {
        throw new TDBException("Failed to obtain a lock on the location " + location.getDirectoryPath(), e);
    }
    // Mark lock for deletion on JVM exit
    // This does not guarantee that the lock file gets cleaned up because
    // such deletions only succeed for normal JVM termination but it should
    // clean up the lock for normal JVM terminations
    lockFile.deleteOnExit();
}

Example 15 with TDBException

use of org.apache.jena.tdb.TDBException in project jena by apache.

the class StoreParamsCodec method getStringArray.

private static String[] getStringArray(JsonObject json, String key) {
    if (!json.hasKey(key))
        throw new TDBException("StoreParamsCodec.getStringArray: no such key: " + key);
    JsonArray a = json.get(key).getAsArray();
    String[] x = new String[a.size()];
    for (int i = 0; i < a.size(); i++) {
        x[i] = a.get(i).getAsString().value();
    }
    return x;
}