Examples with ParserConfiguration org.mvel2.ParserConfiguration used on opensource projects

Example 71 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project kie-wb-common by kiegroup.

the class EnumDropdownServiceImpl method loadDropDownExpression.

protected String[] loadDropDownExpression(final ClassLoader classLoader, final MVELEvaluator mvelEvaluator, final String[] valuePairs, String expression) {
    try {
        final Map<String, String> context = new HashMap<String, String>();
        for (final String valuePair : valuePairs) {
            if (valuePair == null) {
                return new String[0];
            }
            String[] pair = valuePair.split("=");
            if (pair.length == 1) {
                String[] swap = new String[2];
                swap[0] = pair[0];
                swap[1] = "";
                pair = swap;
            }
            context.put(pair[0], pair[1]);
        }
        // first interpolate the pairs
        expression = (String) TemplateRuntime.eval(expression, context);
        // now we can eval it for real...
        final ParserConfiguration pconf = new ParserConfiguration();
        final ParserContext pctx = new ParserContext(pconf);
        pconf.setClassLoader(classLoader);
        final Serializable compiled = MVEL.compileExpression(expression, pctx);
        Object result = mvelEvaluator.executeExpression(compiled, new HashMap<String, Object>());
        // Handle result of evaluation
        if (result instanceof String[]) {
            return (String[]) result;
        } else if (result instanceof List) {
            List l = (List) result;
            String[] xs = new String[l.size()];
            for (int i = 0; i < xs.length; i++) {
                Object el = l.get(i);
                xs[i] = el.toString();
            }
            return xs;
        } else {
            return null;
        }
    } catch (Exception e) {
        throw ExceptionUtilities.handleException(e);
    }
}

Example 72 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mvel by mikebrock.

the class ASTNode method optimize.

private Object optimize(Object ctx, Object thisValue, VariableResolverFactory factory) {
    if ((fields & DEOP) != 0) {
        fields ^= DEOP;
    }
    AccessorOptimizer optimizer;
    Object retVal = null;
    if ((fields & NOJIT) != 0 || factory != null && factory.isResolveable(nameCache)) {
        optimizer = getAccessorCompiler(SAFE_REFLECTIVE);
    } else {
        optimizer = getDefaultAccessorCompiler();
    }
    ParserContext pCtx;
    if ((fields & PCTX_STORED) != 0) {
        pCtx = (ParserContext) literal;
    } else {
        pCtx = new ParserContext(new ParserConfiguration(getInjectedImports(factory), null));
    }
    try {
        pCtx.optimizationNotify();
        setAccessor(optimizer.optimizeAccessor(pCtx, expr, start, offset, ctx, thisValue, factory, true, egressType));
    } catch (OptimizationNotSupported ne) {
        setAccessor((optimizer = getAccessorCompiler(SAFE_REFLECTIVE)).optimizeAccessor(pCtx, expr, start, offset, ctx, thisValue, factory, true, null));
    }
    if (accessor == null) {
        return get(expr, start, offset, ctx, factory, thisValue);
    }
    if (retVal == null) {
        retVal = optimizer.getResultOptPass();
    }
    if (egressType == null) {
        egressType = optimizer.getEgressType();
    }
    return retVal;
}

Example 73 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mvel by mikebrock.

the class CoreConfidenceTests method testContextFieldNotFound.

public void testContextFieldNotFound() {
    String str = "'stilton'.equals( type );";
    ParserConfiguration pconf = new ParserConfiguration();
    ParserContext pctx = new ParserContext(pconf);
    pctx.addInput("this", Cheese.class);
    pctx.setStrictTypeEnforcement(true);
    pctx.setStrongTyping(true);
    ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);
    MVEL.executeExpression(stmt, new Cheese(), new HashMap());
}

Example 74 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mvel by mikebrock.

the class CoreConfidenceTests method testStrTriangleEqualsEquals.

public void testStrTriangleEqualsEquals() {
    MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = true;
    try {
        ParserConfiguration pconf = new ParserConfiguration();
        ParserContext pctx = new ParserContext(pconf);
        pctx.addInput("this", Triangle.class);
        pctx.setStrongTyping(true);
        String str = "this.strLabel == this";
        try {
            ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);
            fail("should have failed");
        } catch (CompileException e) {
            System.out.println();
            return;
        }
    } finally {
        MVEL.COMPILER_OPT_ALLOW_NAKED_METH_CALL = false;
    }
}

Example 75 with ParserConfiguration

use of org.mvel2.ParserConfiguration in project mvel by mikebrock.

the class CoreConfidenceTests method testStrictModeAddAll.

public void testStrictModeAddAll() {
    String str = "list.addAll( o );";
    ParserConfiguration pconf = new ParserConfiguration();
    ParserContext pctx = new ParserContext(pconf);
    pctx.setStrongTyping(true);
    pctx.addInput("o", Object.class);
    pctx.addInput("list", ArrayList.class);
    try {
        ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);
        fail("This should not compileShared, as o is not of a type Collection");
    } catch (Exception e) {
    }
}