Examples with Accessor org.mvel2.compiler.Accessor used on opensource projects

Example 36 with Accessor

use of org.mvel2.compiler.Accessor in project mvel by mvel.

the class InlineCollectionNode method getReducedValueAccelerated.

public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
    if (accessor != null) {
        return accessor.getValue(ctx, thisValue, factory);
    } else {
        try {
            AccessorOptimizer ao = OptimizerFactory.getThreadAccessorOptimizer();
            if (collectionGraph == null)
                parseGraph(true, null, null);
            accessor = ao.optimizeCollection(pCtx, collectionGraph, egressType, expr, trailingStart, trailingOffset, ctx, thisValue, factory);
            egressType = ao.getEgressType();
            return accessor.getValue(ctx, thisValue, factory);
        } finally {
            OptimizerFactory.clearThreadAccessorOptimizer();
        }
    }
}

Example 37 with Accessor

use of org.mvel2.compiler.Accessor in project mvel by mvel.

the class Union method getReducedValueAccelerated.

public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
    if (accessor != null) {
        return accessor.getValue(main.getReducedValueAccelerated(ctx, thisValue, factory), thisValue, factory);
    } else {
        try {
            AccessorOptimizer o = OptimizerFactory.getThreadAccessorOptimizer();
            accessor = o.optimizeAccessor(pCtx, expr, start, offset, main.getReducedValueAccelerated(ctx, thisValue, factory), thisValue, factory, false, main.getEgressType());
            return o.getResultOptPass();
        } finally {
            OptimizerFactory.clearThreadAccessorOptimizer();
        }
    }
}

Example 38 with Accessor

use of org.mvel2.compiler.Accessor in project mvel by mvel.

the class ASMAccessorOptimizer method _getAccessor.

private int _getAccessor(Object o, Class type) {
    if (o instanceof List) {
        assert debug("NEW " + LIST_IMPL);
        mv.visitTypeInsn(NEW, LIST_IMPL);
        assert debug("DUP");
        mv.visitInsn(DUP);
        assert debug("DUP");
        mv.visitInsn(DUP);
        intPush(((List) o).size());
        assert debug("INVOKESPECIAL " + LIST_IMPL + ".<init>");
        mv.visitMethodInsn(INVOKESPECIAL, LIST_IMPL, "<init>", "(I)V");
        for (Object item : (List) o) {
            if (_getAccessor(item, type) != VAL) {
                assert debug("POP");
                mv.visitInsn(POP);
            }
            assert debug("INVOKEINTERFACE java/util/List.add");
            mv.visitMethodInsn(INVOKEINTERFACE, "java/util/List", "add", "(Ljava/lang/Object;)Z");
            assert debug("POP");
            mv.visitInsn(POP);
            assert debug("DUP");
            mv.visitInsn(DUP);
        }
        returnType = List.class;
        return LIST;
    } else if (o instanceof Map) {
        assert debug("NEW " + MAP_IMPL);
        mv.visitTypeInsn(NEW, MAP_IMPL);
        assert debug("DUP");
        mv.visitInsn(DUP);
        assert debug("DUP");
        mv.visitInsn(DUP);
        intPush(((Map) o).size());
        assert debug("INVOKESPECIAL " + MAP_IMPL + ".<init>");
        mv.visitMethodInsn(INVOKESPECIAL, MAP_IMPL, "<init>", "(I)V");
        for (Object item : ((Map) o).keySet()) {
            mv.visitTypeInsn(CHECKCAST, "java/util/Map");
            if (_getAccessor(item, type) != VAL) {
                assert debug("POP");
                mv.visitInsn(POP);
            }
            if (_getAccessor(((Map) o).get(item), type) != VAL) {
                assert debug("POP");
                mv.visitInsn(POP);
            }
            assert debug("INVOKEINTERFACE java/util/Map.put");
            mv.visitMethodInsn(INVOKEINTERFACE, "java/util/Map", "put", "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;");
            assert debug("POP");
            mv.visitInsn(POP);
            assert debug("DUP");
            mv.visitInsn(DUP);
        }
        returnType = Map.class;
        return MAP;
    } else if (o instanceof Object[]) {
        Accessor[] a = new Accessor[((Object[]) o).length];
        int i = 0;
        int dim = 0;
        if (type != null) {
            String nm = type.getName();
            while (nm.charAt(dim) == '[') dim++;
        } else {
            type = Object[].class;
            dim = 1;
        }
        try {
            Class componentType = getSubComponentType(type);
            createArray(componentType, ((Object[]) o).length);
            Class cls = dim > 1 ? findClass(null, repeatChar('[', dim - 1) + "L" + getBaseComponentType(type).getName() + ";", pCtx) : toNonPrimitiveArray(type);
            assert debug("DUP");
            mv.visitInsn(DUP);
            for (Object item : (Object[]) o) {
                intPush(i);
                if (_getAccessor(item, cls) != VAL) {
                    assert debug("POP");
                    mv.visitInsn(POP);
                }
                if (componentType.isPrimitive()) {
                    unwrapPrimitive(componentType);
                }
                arrayStore(componentType);
                assert debug("DUP");
                mv.visitInsn(DUP);
                i++;
            }
        } catch (ClassNotFoundException e) {
            throw new RuntimeException("this error should never throw:" + getBaseComponentType(type).getName(), e);
        }
        return ARRAY;
    } else {
        if (type.isArray()) {
            writeLiteralOrSubexpression(subCompileExpression(((String) o).toCharArray(), pCtx), getSubComponentType(type));
        } else {
            writeLiteralOrSubexpression(subCompileExpression(((String) o).toCharArray(), pCtx));
        }
        return VAL;
    }
}

Example 39 with Accessor

use of org.mvel2.compiler.Accessor in project mvel by mvel.

the class ASMAccessorOptimizer method compileAccessor.

private Accessor compileAccessor() {
    assert debug("<<INITIATE COMPILE>>");
    Object curr = ctx;
    try {
        if (!MVEL.COMPILER_OPT_ALLOW_OVERRIDE_ALL_PROPHANDLING) {
            while (cursor < end) {
                switch(nextSubToken()) {
                    case BEAN:
                        curr = getBeanProperty(curr, capture());
                        break;
                    case METH:
                        curr = getMethod(curr, capture());
                        break;
                    case COL:
                        curr = getCollectionProperty(curr, capture());
                        break;
                    case WITH:
                        curr = getWithProperty(curr);
                        break;
                }
                // check to see if a null safety is enabled on this property.
                if (fields == -1) {
                    if (curr == null) {
                        if (nullSafe) {
                            throw new OptimizationNotSupported();
                        }
                        break;
                    } else {
                        fields = 0;
                    }
                }
                first = false;
                if (nullSafe && cursor < end) {
                    assert debug("DUP");
                    mv.visitInsn(DUP);
                    Label j = new Label();
                    assert debug("IFNONNULL : jump");
                    mv.visitJumpInsn(IFNONNULL, j);
                    assert debug("ARETURN");
                    mv.visitInsn(ARETURN);
                    assert debug("LABEL:jump");
                    mv.visitLabel(j);
                }
            }
        } else {
            while (cursor < end) {
                switch(nextSubToken()) {
                    case BEAN:
                        curr = getBeanPropertyAO(curr, capture());
                        break;
                    case METH:
                        curr = getMethod(curr, capture());
                        break;
                    case COL:
                        curr = getCollectionPropertyAO(curr, capture());
                        break;
                    case WITH:
                        curr = getWithProperty(curr);
                        break;
                }
                // check to see if a null safety is enabled on this property.
                if (fields == -1) {
                    if (curr == null) {
                        if (nullSafe) {
                            throw new OptimizationNotSupported();
                        }
                        break;
                    } else {
                        fields = 0;
                    }
                }
                first = false;
                if (nullSafe && cursor < end) {
                    assert debug("DUP");
                    mv.visitInsn(DUP);
                    Label j = new Label();
                    assert debug("IFNONNULL : jump");
                    mv.visitJumpInsn(IFNONNULL, j);
                    assert debug("ARETURN");
                    mv.visitInsn(ARETURN);
                    assert debug("LABEL:jump");
                    mv.visitLabel(j);
                }
            }
        }
        val = curr;
        _finishJIT();
        return _initializeAccessor();
    } catch (InvocationTargetException e) {
        throw new PropertyAccessException(new String(expr), expr, st, e, pCtx);
    } catch (IllegalAccessException e) {
        throw new PropertyAccessException(new String(expr), expr, st, e, pCtx);
    } catch (IndexOutOfBoundsException e) {
        throw new PropertyAccessException(new String(expr), expr, st, e, pCtx);
    } catch (PropertyAccessException e) {
        throw new CompileException(e.getMessage(), expr, st, e);
    } catch (CompileException e) {
        throw e;
    } catch (NullPointerException e) {
        throw new PropertyAccessException(new String(expr), expr, st, e, pCtx);
    } catch (OptimizationNotSupported e) {
        throw e;
    } catch (Exception e) {
        throw new CompileException(e.getMessage(), expr, st, e);
    }
}

Example 40 with Accessor

use of org.mvel2.compiler.Accessor in project mvel by mvel.

the class ASMAccessorOptimizer method _initializeAccessor.

private Accessor _initializeAccessor() throws Exception {
    if (deferFinish) {
        return null;
    }
    /**
     * Hot load the class we just generated.
     */
    Class cls = loadClass(className, cw.toByteArray());
    assert debug("[MVEL JIT Completed Optimization <<" + (expr != null ? new String(expr) : "") + ">>]::" + cls + " (time: " + (System.currentTimeMillis() - time) + "ms)");
    Object o;
    try {
        if (compiledInputs.size() == 0) {
            o = cls.newInstance();
        } else {
            Class[] parms = new Class[compiledInputs.size()];
            for (int i = 0; i < compiledInputs.size(); i++) {
                parms[i] = ExecutableStatement.class;
            }
            o = cls.getConstructor(parms).newInstance(compiledInputs.toArray(new ExecutableStatement[compiledInputs.size()]));
        }
        if (propNull)
            cls.getField("nullPropertyHandler").set(o, getNullPropertyHandler());
        if (methNull)
            cls.getField("nullMethodHandler").set(o, getNullMethodHandler());
    } catch (VerifyError e) {
        System.out.println("**** COMPILER BUG! REPORT THIS IMMEDIATELY AT http://jira.codehaus.org/browse/MVEL");
        System.out.println("Expression: " + (expr == null ? null : new String(expr)));
        throw e;
    }
    return (Accessor) o;
}