Examples with IonStruct com.amazon.ion.IonStruct used on opensource projects

Example 41 with IonStruct

use of com.amazon.ion.IonStruct in project ion-java by amzn.

the class IonJavaCli method parseStruct.

private static IonStruct parseStruct(ContainerContext containerContext, CompareContext compareContext, int end, boolean isFirst) {
    Event initEvent = isFirst ? compareContext.getEventStreamFirst().get(containerContext.getIndex()) : compareContext.getEventStreamSecond().get(containerContext.getIndex());
    if (initEvent.getEventType() != EventType.CONTAINER_START || initEvent.getIonType() != IonType.STRUCT) {
        return null;
    }
    IonStruct ionStruct = ION_SYSTEM.newEmptyStruct();
    while (containerContext.increaseIndex() < end) {
        Event event = isFirst ? compareContext.getEventStreamFirst().get(containerContext.getIndex()) : compareContext.getEventStreamSecond().get(containerContext.getIndex());
        EventType eventType = event.getEventType();
        if (eventType == EventType.CONTAINER_START) {
            switch(event.getIonType()) {
                case LIST:
                    ionStruct.add(event.getFieldName(), parseSequence(containerContext, compareContext, end, isFirst, ION_SYSTEM.newEmptyList()));
                    break;
                case STRUCT:
                    ionStruct.add(event.getFieldName(), parseStruct(containerContext, compareContext, end, isFirst));
                    break;
                case SEXP:
                    ionStruct.add(event.getFieldName(), parseSequence(containerContext, compareContext, end, isFirst, ION_SYSTEM.newEmptySexp()));
                    break;
            }
        } else if (eventType == EventType.CONTAINER_END) {
            break;
        } else if (eventType == EventType.STREAM_END) {
            throw new IonException("Invalid struct: eventStream ends without CONTAINER_END");
        } else {
            IonValue cloneValue = event.getValue().clone();
            cloneValue.setTypeAnnotationSymbols(event.getAnnotations());
            ionStruct.add(event.getFieldName(), cloneValue);
        }
    }
    return ionStruct;
}

Example 42 with IonStruct

use of com.amazon.ion.IonStruct in project ion-java by amzn.

the class IonIteratorImpl method readValue.

private IonValue readValue() {
    IonType type = _reader.getType();
    SymbolToken[] annotations = _reader.getTypeAnnotationSymbols();
    IonValue v;
    if (_reader.isNullValue()) {
        v = _valueFactory.newNull(type);
    } else {
        switch(type) {
            case NULL:
                // Handled above
                throw new IllegalStateException();
            case BOOL:
                v = _valueFactory.newBool(_reader.booleanValue());
                break;
            case INT:
                v = _valueFactory.newInt(_reader.bigIntegerValue());
                break;
            case FLOAT:
                v = _valueFactory.newFloat(_reader.doubleValue());
                break;
            case DECIMAL:
                v = _valueFactory.newDecimal(_reader.decimalValue());
                break;
            case TIMESTAMP:
                v = _valueFactory.newTimestamp(_reader.timestampValue());
                break;
            case STRING:
                v = _valueFactory.newString(_reader.stringValue());
                break;
            case SYMBOL:
                // TODO always pass the SID?  Is it correct?
                v = _valueFactory.newSymbol(_reader.symbolValue());
                break;
            case BLOB:
                {
                    IonLob lob = _valueFactory.newNullBlob();
                    lob.setBytes(_reader.newBytes());
                    v = lob;
                    break;
                }
            case CLOB:
                {
                    IonLob lob = _valueFactory.newNullClob();
                    lob.setBytes(_reader.newBytes());
                    v = lob;
                    break;
                }
            case STRUCT:
                {
                    IonStruct struct = _valueFactory.newEmptyStruct();
                    _reader.stepIn();
                    while (_reader.next() != null) {
                        SymbolToken name = _reader.getFieldNameSymbol();
                        IonValue child = readValue();
                        struct.add(name, child);
                    }
                    _reader.stepOut();
                    v = struct;
                    break;
                }
            case LIST:
                {
                    IonSequence seq = _valueFactory.newEmptyList();
                    _reader.stepIn();
                    while (_reader.next() != null) {
                        IonValue child = readValue();
                        seq.add(child);
                    }
                    _reader.stepOut();
                    v = seq;
                    break;
                }
            case SEXP:
                {
                    IonSequence seq = _valueFactory.newEmptySexp();
                    _reader.stepIn();
                    while (_reader.next() != null) {
                        IonValue child = readValue();
                        seq.add(child);
                    }
                    _reader.stepOut();
                    v = seq;
                    break;
                }
            default:
                throw new IllegalStateException();
        }
    }
    // TODO this is too late in the case of system reading
    // when v is a local symtab (it will get itself, not the prior symtab)
    SymbolTable symtab = _reader.getSymbolTable();
    ((_Private_IonValue) v).setSymbolTable(symtab);
    if (annotations.length != 0) {
        ((_Private_IonValue) v).setTypeAnnotationSymbols(annotations);
    }
    return v;
}

Example 43 with IonStruct

use of com.amazon.ion.IonStruct in project ion-java by amzn.

the class IonReaderTreeUserX method next_helper_user.

boolean next_helper_user() {
    if (_eof)
        return false;
    if (_next != null)
        return true;
    clear_system_value_stack();
    // read values from the system
    // reader and if they are system values
    // process them.  Return when we've
    // read all the immediate system values
    IonType next_type;
    for (; ; ) {
        next_type = next_helper_system();
        if (_top == 0 && _parent instanceof IonDatagram) {
            if (IonType.SYMBOL.equals(next_type)) {
                assert (_next instanceof IonSymbol);
                IonSymbol sym = (IonSymbol) _next;
                if (sym.isNullValue()) {
                    // there are no null values we will consume here
                    break;
                }
                int sid = sym.getSymbolId();
                if (sid == UNKNOWN_SYMBOL_ID) {
                    String name = sym.stringValue();
                    if (name != null) {
                        sid = _system_symtab.findSymbol(name);
                    }
                }
                if (sid == ION_1_0_SID && _next.getTypeAnnotationSymbols().length == 0) {
                    // $ion_1_0 is read as an IVM only if it is not annotated
                    SymbolTable symbols = _system_symtab;
                    _symbols = symbols;
                    push_symbol_table(symbols);
                    _next = null;
                    continue;
                }
            } else if (IonType.STRUCT.equals(next_type) && _next.findTypeAnnotation(ION_SYMBOL_TABLE) == 0) {
                assert (_next instanceof IonStruct);
                // read a local symbol table
                IonReader reader = new IonReaderTreeUserX(_next, _catalog, _lstFactory);
                SymbolTable symtab = _lstFactory.newLocalSymtab(_catalog, reader, false);
                _symbols = symtab;
                push_symbol_table(symtab);
                _next = null;
                continue;
            }
        }
        // so this is a value the user gets
        break;
    }
    return (next_type != null);
}

Example 44 with IonStruct

use of com.amazon.ion.IonStruct in project ion-java by amzn.

the class SymbolTableStructCache method makeIonRepresentation.

/**
 * Create a new IonStruct representation of the symbol table.
 * @param factory the {@link ValueFactory} from which to construct the IonStruct.
 */
private void makeIonRepresentation(ValueFactory factory) {
    image = factory.newEmptyStruct();
    image.addTypeAnnotation(ION_SYMBOL_TABLE);
    if (importedTables.length > 0) {
        // The system symbol table may be the first import. If it is, skip it.
        int i = importedTables[0].isSystemTable() ? 1 : 0;
        if (i < importedTables.length) {
            IonList importsList = factory.newEmptyList();
            while (i < importedTables.length) {
                SymbolTable importedTable = importedTables[i];
                IonStruct importStruct = factory.newEmptyStruct();
                importStruct.add(NAME, factory.newString(importedTable.getName()));
                importStruct.add(VERSION, factory.newInt(importedTable.getVersion()));
                importStruct.add(MAX_ID, factory.newInt(importedTable.getMaxId()));
                importsList.add(importStruct);
                i++;
            }
            image.add(IMPORTS, importsList);
        }
    }
    if (symbolTable.getMaxId() > symbolTable.getImportedMaxId()) {
        Iterator<String> localSymbolIterator = symbolTable.iterateDeclaredSymbolNames();
        int sid = symbolTable.getImportedMaxId() + 1;
        while (localSymbolIterator.hasNext()) {
            addSymbol(localSymbolIterator.next(), sid);
            sid++;
        }
    }
}

Example 45 with IonStruct

use of com.amazon.ion.IonStruct in project ion-java by amzn.

the class _Private_CurriedValueFactory method newEmptyStruct.

public IonStruct newEmptyStruct() {
    IonStruct v = myFactory.newEmptyStruct();
    handle(v);
    return v;
}