Examples with Variant com.sun.jna.platform.win32.Variant used on opensource projects

Example 21 with Variant

use of com.sun.jna.platform.win32.Variant in project jna by java-native-access.

the class CallbackProxy method invokeOnThread.

void invokeOnThread(final DISPID dispIdMember, final REFIID riid, LCID lcid, WORD wFlags, final DISPPARAMS.ByReference pDispParams) {
    VARIANT[] arguments = pDispParams.getArgs();
    final Method eventMethod = CallbackProxy.this.dsipIdMap.get(dispIdMember);
    if (eventMethod == null) {
        CallbackProxy.this.comEventCallbackListener.errorReceivingCallbackEvent("No method found with dispId = " + dispIdMember, null);
        return;
    }
    /**
             * DISPPARAMs provides two different ways to pass arguments.
             *
             * Arguments can be passed as a linear list with all arguments
             * specified to a certain position (positional) or the position of
             * an argument can be passed via the rgdispidNamedArgs array
             * (named).
             *
             * pDispParams.rgvarg (length in pDispParams.cArgs) contains all
             * arguments (named + position based)
             *
             * pDispParams.rgdispidNamedArgs (length in pDispParams.cNamedArgs)
             * contains the named parameters as DISPIDs - the DISPIDs are the
             * target index in the method signature (zero based).
             *
             * Each entry in pDispParams.rgvarg is either position based or name
             * based and the position bases arguments are passed in reverse
             * order, so getting this:
             *
             * rgvarg = ["arg1", "arg2", "arg3", "arg4", "arg5"]
             * rgdispidNamedArgs = [3, 4]
             *
             * Would lead to this paramater array in the handler:
             *
             * ["arg5", "arg4", "arg3", "arg1", "arg2"]
             *
             * See also:
             * https://msdn.microsoft.com/de-de/library/windows/desktop/ms221653%28v=vs.85%29.aspx
             */
    // Arguments are converted to the JAVA side and IDispatch Interfaces
    // are wrapped into an ProxyObject if so requested.
    //
    // Out-Parameter need to be specified as VARIANT, VARIANT args are
    // not converted, so COM memory allocation rules apply.
    DISPID[] positionMap = pDispParams.getRgdispidNamedArgs();
    final Class<?>[] paramTypes = eventMethod.getParameterTypes();
    final Object[] params = new Object[paramTypes.length];
    // Handle position based parameters first
    for (int i = 0; i < params.length && (arguments.length - positionMap.length - i) > 0; i++) {
        Class targetClass = paramTypes[i];
        Variant.VARIANT varg = arguments[arguments.length - i - 1];
        params[i] = Convert.toJavaObject(varg, targetClass, factory, true, false);
    }
    for (int i = 0; i < positionMap.length; i++) {
        int targetPosition = positionMap[i].intValue();
        if (targetPosition >= params.length) {
            // If less parameters are mapped then supplied, ignore
            continue;
        }
        Class targetClass = paramTypes[targetPosition];
        Variant.VARIANT varg = arguments[i];
        params[targetPosition] = Convert.toJavaObject(varg, targetClass, factory, true, false);
    }
    // exception occurs while doing the call into the target method
    for (int i = 0; i < params.length; i++) {
        if (params[i] == null && paramTypes[i].isPrimitive()) {
            if (paramTypes[i].equals(boolean.class)) {
                params[i] = DEFAULT_BOOLEAN;
            } else if (paramTypes[i].equals(byte.class)) {
                params[i] = DEFAULT_BYTE;
            } else if (paramTypes[i].equals(short.class)) {
                params[i] = DEFAULT_SHORT;
            } else if (paramTypes[i].equals(int.class)) {
                params[i] = DEFAULT_INT;
            } else if (paramTypes[i].equals(long.class)) {
                params[i] = DEFAULT_LONG;
            } else if (paramTypes[i].equals(float.class)) {
                params[i] = DEFAULT_FLOAT;
            } else if (paramTypes[i].equals(double.class)) {
                params[i] = DEFAULT_DOUBLE;
            } else {
                throw new IllegalArgumentException("Class type " + paramTypes[i].getName() + " not mapped to primitive default value.");
            }
        }
    }
    try {
        eventMethod.invoke(comEventCallbackListener, params);
    } catch (Exception e) {
        List<String> decodedClassNames = new ArrayList<String>(params.length);
        for (Object o : params) {
            if (o == null) {
                decodedClassNames.add("NULL");
            } else {
                decodedClassNames.add(o.getClass().getName());
            }
        }
        CallbackProxy.this.comEventCallbackListener.errorReceivingCallbackEvent("Exception invoking method " + eventMethod + " supplied: " + decodedClassNames.toString(), e);
    }
}

Example 22 with Variant

use of com.sun.jna.platform.win32.Variant in project jna by java-native-access.

the class Convert method toVariant.

/**
         * Convert a java value into a VARIANT suitable for passing in a COM
         * invocation.
         * 
         * <p><i>Implementation notes</i></p>
         * 
         * <ul>
         * <li>VARIANTs are not rewrapped, but passed through unmodified</li>
         * <li>A string is wrapped into a BSTR, that is wrapped into the VARIANT.
         *  The string is allocated as native memory by the VARIANT constructor.
         *  The BSTR needs to be freed by {@link com.sun.jna.platform.win32.OleAuto#SysFreeString}.</li>
         * </ul>
         * 
         * @param value to be wrapped
         * @return wrapped VARIANT
         */
public static VARIANT toVariant(Object value) {
    if (value instanceof VARIANT) {
        return (VARIANT) value;
    } else if (value instanceof BSTR) {
        return new VARIANT((BSTR) value);
    } else if (value instanceof VARIANT_BOOL) {
        return new VARIANT((VARIANT_BOOL) value);
    } else if (value instanceof BOOL) {
        return new VARIANT((BOOL) value);
    } else if (value instanceof LONG) {
        return new VARIANT((LONG) value);
    } else if (value instanceof SHORT) {
        return new VARIANT((SHORT) value);
    } else if (value instanceof DATE) {
        return new VARIANT((DATE) value);
    } else if (value instanceof BYTE) {
        return new VARIANT((BYTE) value);
    } else if (value instanceof Byte) {
        return new VARIANT((Byte) value);
    } else if (value instanceof Character) {
        return new VARIANT((Character) value);
    } else if (value instanceof CHAR) {
        return new VARIANT((CHAR) value);
    } else if (value instanceof Short) {
        return new VARIANT((Short) value);
    } else if (value instanceof Integer) {
        return new VARIANT((Integer) value);
    } else if (value instanceof Long) {
        return new VARIANT((Long) value);
    } else if (value instanceof Float) {
        return new VARIANT((Float) value);
    } else if (value instanceof Double) {
        return new VARIANT((Double) value);
    } else if (value instanceof String) {
        return new VARIANT((String) value);
    } else if (value instanceof Boolean) {
        return new VARIANT((Boolean) value);
    } else if (value instanceof com.sun.jna.platform.win32.COM.IDispatch) {
        return new VARIANT((com.sun.jna.platform.win32.COM.IDispatch) value);
    } else if (value instanceof Date) {
        return new VARIANT((Date) value);
    } else if (value instanceof Proxy) {
        InvocationHandler ih = Proxy.getInvocationHandler(value);
        ProxyObject pobj = (ProxyObject) ih;
        return new VARIANT(pobj.getRawDispatch());
    } else if (value instanceof IComEnum) {
        IComEnum enm = (IComEnum) value;
        return new VARIANT(new WinDef.LONG(enm.getValue()));
    } else if (value instanceof SAFEARRAY) {
        return new VARIANT((SAFEARRAY) value);
    } else {
        return null;
    }
}

Example 23 with Variant

use of com.sun.jna.platform.win32.Variant in project jna by java-native-access.

the class OaIdlUtil method toPrimitiveArray.

/**
     * Read SAFEARRAY into a java array. Not all VARTYPEs are supported!
     *
     * <p>
     * Supported types:</p>
     * <ul>
     * <li>VT_BOOL</li>
     * <li>VT_UI1</li>
     * <li>VT_I1</li>
     * <li>VT_UI2</li>
     * <li>VT_I2</li>
     * <li>VT_UI4</li>
     * <li>VT_UINT</li>
     * <li>VT_I4</li>
     * <li>VT_INT</li>
     * <li>VT_ERROR</li>
     * <li>VT_R4</li>
     * <li>VT_R8</li>
     * <li>VT_DATE</li>
     * <li>VT_BSTR</li>
     * <li>VT_VARIANT (Onle the following VARTYPES):
     * <ul>
     * <li>VT_EMPTY (converted to NULL)</li>
     * <li>VT_NULL</li>
     * <li>VT_BOOL</li>
     * <li>VT_UI1</li>
     * <li>VT_I1</li>
     * <li>VT_UI2</li>
     * <li>VT_I2</li>
     * <li>VT_UI4</li>
     * <li>VT_UINT</li>
     * <li>VT_I4</li>
     * <li>VT_INT</li>
     * <li>VT_ERROR</li>
     * <li>VT_R4</li>
     * <li>VT_R8</li>
     * <li>VT_DATE</li>
     * <li>VT_BSTR</li>
     * </ul>
     * </li>
     * </ul>
     *
     * @param sa SAFEARRAY to convert
     * @param destruct if true the supplied SAFEARRAY is destroyed, there must
     * not be additional locks on the array!
     * @return Java array corresponding to the given SAFEARRAY
     */
public static Object toPrimitiveArray(SAFEARRAY sa, boolean destruct) {
    Pointer dataPointer = sa.accessData();
    try {
        int dimensions = sa.getDimensionCount();
        int[] minIdx = new int[dimensions];
        int[] maxIdx = new int[dimensions];
        int[] elements = new int[dimensions];
        int[] cumElements = new int[dimensions];
        int varType = sa.getVarType().intValue();
        for (int i = 0; i < dimensions; i++) {
            minIdx[i] = sa.getLBound(i);
            maxIdx[i] = sa.getUBound(i);
            elements[i] = maxIdx[i] - minIdx[i] + 1;
        }
        for (int i = dimensions - 1; i >= 0; i--) {
            if (i == (dimensions - 1)) {
                cumElements[i] = 1;
            } else {
                cumElements[i] = cumElements[i + 1] * elements[i + 1];
            }
        }
        if (dimensions == 0) {
            throw new IllegalArgumentException("Supplied Array has no dimensions.");
        }
        int elementCount = cumElements[0] * elements[0];
        Object sourceArray;
        switch(varType) {
            case VT_UI1:
            case VT_I1:
                sourceArray = dataPointer.getByteArray(0, elementCount);
                break;
            case VT_BOOL:
            case VT_UI2:
            case VT_I2:
                sourceArray = dataPointer.getShortArray(0, elementCount);
                break;
            case VT_UI4:
            case VT_UINT:
            case VT_I4:
            case VT_INT:
            case VT_ERROR:
                sourceArray = dataPointer.getIntArray(0, elementCount);
                break;
            case VT_R4:
                sourceArray = dataPointer.getFloatArray(0, elementCount);
                break;
            case VT_R8:
            case VT_DATE:
                sourceArray = dataPointer.getDoubleArray(0, elementCount);
                break;
            case VT_BSTR:
                sourceArray = dataPointer.getPointerArray(0, elementCount);
                break;
            case VT_VARIANT:
                VARIANT variant = new VARIANT(dataPointer);
                sourceArray = variant.toArray(elementCount);
                break;
            case VT_UNKNOWN:
            case VT_DISPATCH:
            case VT_CY:
            case VT_DECIMAL:
            case VT_RECORD:
            default:
                throw new IllegalStateException("Type not supported: " + varType);
        }
        Object targetArray = Array.newInstance(Object.class, elements);
        toPrimitiveArray(sourceArray, targetArray, minIdx, maxIdx, elements, cumElements, varType, new int[0]);
        return targetArray;
    } finally {
        sa.unaccessData();
        if (destruct) {
            sa.destroy();
        }
    }
}

Example 24 with Variant

use of com.sun.jna.platform.win32.Variant in project jna by java-native-access.

the class OaIdlUtil method toPrimitiveArray.

private static void toPrimitiveArray(Object dataArray, Object targetArray, int[] minIdx, int[] maxIdx, int[] elements, int[] cumElements, int varType, int[] currentIdx) {
    int dimIdx = currentIdx.length;
    int[] subIdx = new int[currentIdx.length + 1];
    System.arraycopy(currentIdx, 0, subIdx, 0, dimIdx);
    for (int i = minIdx[dimIdx]; i <= maxIdx[dimIdx]; i++) {
        subIdx[dimIdx] = i;
        if (dimIdx == (minIdx.length - 1)) {
            int offset = 0;
            for (int j = 0; j < dimIdx; j++) {
                offset += cumElements[j] * currentIdx[j];
            }
            offset += subIdx[dimIdx] - minIdx[dimIdx];
            int targetPos = subIdx[dimIdx] - minIdx[dimIdx];
            switch(varType) {
                case VT_BOOL:
                    Array.set(targetArray, targetPos, Array.getShort(dataArray, offset) != 0);
                    break;
                case VT_UI1:
                case VT_I1:
                    Array.set(targetArray, targetPos, Array.getByte(dataArray, offset));
                    break;
                case VT_UI2:
                case VT_I2:
                    Array.set(targetArray, targetPos, Array.getShort(dataArray, offset));
                    break;
                case VT_UI4:
                case VT_UINT:
                case VT_I4:
                case VT_INT:
                    Array.set(targetArray, targetPos, Array.getInt(dataArray, offset));
                    break;
                case VT_ERROR:
                    Array.set(targetArray, targetPos, new SCODE(Array.getInt(dataArray, offset)));
                    break;
                case VT_R4:
                    Array.set(targetArray, targetPos, Array.getFloat(dataArray, offset));
                    break;
                case VT_R8:
                    Array.set(targetArray, targetPos, Array.getDouble(dataArray, offset));
                    break;
                case VT_DATE:
                    Array.set(targetArray, targetPos, new DATE(Array.getDouble(dataArray, offset)).getAsJavaDate());
                    break;
                case VT_BSTR:
                    Array.set(targetArray, targetPos, new BSTR((Pointer) Array.get(dataArray, offset)).getValue());
                    break;
                case VT_VARIANT:
                    VARIANT holder = (VARIANT) Array.get(dataArray, offset);
                    switch(holder.getVarType().intValue()) {
                        case VT_NULL:
                        case VT_EMPTY:
                            Array.set(targetArray, targetPos, null);
                            break;
                        case VT_BOOL:
                            Array.set(targetArray, targetPos, holder.booleanValue());
                            break;
                        case VT_UI1:
                        case VT_I1:
                            Array.set(targetArray, targetPos, holder.byteValue());
                            break;
                        case VT_UI2:
                        case VT_I2:
                            Array.set(targetArray, targetPos, holder.shortValue());
                            break;
                        case VT_UI4:
                        case VT_UINT:
                        case VT_I4:
                        case VT_INT:
                            Array.set(targetArray, targetPos, holder.intValue());
                            break;
                        case VT_ERROR:
                            Array.set(targetArray, targetPos, new SCODE(holder.intValue()));
                            break;
                        case VT_R4:
                            Array.set(targetArray, targetPos, holder.floatValue());
                            break;
                        case VT_R8:
                            Array.set(targetArray, targetPos, holder.doubleValue());
                            break;
                        case VT_DATE:
                            Array.set(targetArray, targetPos, holder.dateValue());
                            break;
                        case VT_BSTR:
                            Array.set(targetArray, targetPos, holder.stringValue());
                            break;
                        default:
                            throw new IllegalStateException("Type not supported: " + holder.getVarType().intValue());
                    }
                    break;
                case VT_UNKNOWN:
                case VT_DISPATCH:
                case VT_CY:
                case VT_DECIMAL:
                case VT_RECORD:
                default:
                    throw new IllegalStateException("Type not supported: " + varType);
            }
        } else {
            toPrimitiveArray(dataArray, Array.get(targetArray, i), minIdx, maxIdx, elements, cumElements, varType, subIdx);
        }
    }
}

Example 25 with Variant

use of com.sun.jna.platform.win32.Variant in project jna by java-native-access.

the class VariantTest method testVariantCopyBoolean.

public void testVariantCopyBoolean() {
    VARIANT variantSource = new VARIANT(Variant.VARIANT_TRUE);
    VARIANT variantDest = new VARIANT();
    HRESULT hr = OleAuto.INSTANCE.VariantCopy(variantDest.getPointer(), variantSource);
    assertTrue("hr: " + hr.intValue(), hr.intValue() == 0);
}