Examples with Expression org.springframework.binding.expression.Expression used on opensource projects

Example 1 with Expression

use of org.springframework.binding.expression.Expression in project cas by apereo.

the class AbstractCasWebflowConfigurer method createEvaluateAction.

@Override
public EvaluateAction createEvaluateAction(final String expression) {
    if (this.flowBuilderServices == null) {
        LOGGER.error("Flow builder services is not configured correctly.");
        return null;
    }
    final ParserContext ctx = new FluentParserContext();
    final Expression action = this.flowBuilderServices.getExpressionParser().parseExpression(expression, ctx);
    final EvaluateAction newAction = new EvaluateAction(action, null);
    LOGGER.debug("Created evaluate action for expression [[{}]]", action.getExpressionString());
    return newAction;
}

Example 2 with Expression

use of org.springframework.binding.expression.Expression in project cas by apereo.

the class AbstractCasWebflowConfigurer method createDecisionState.

@Override
public DecisionState createDecisionState(final Flow flow, final String id, final String testExpression, final String thenStateId, final String elseStateId) {
    if (containsFlowState(flow, id)) {
        LOGGER.debug("Flow [{}] already contains a definition for state id [[{}]]", flow.getId(), id);
        return (DecisionState) flow.getTransitionableState(id);
    }
    final DecisionState decisionState = new DecisionState(flow, id);
    final Expression expression = createExpression(testExpression, Boolean.class);
    final Transition thenTransition = createTransition(expression, thenStateId);
    decisionState.getTransitionSet().add(thenTransition);
    final Transition elseTransition = createTransition("*", elseStateId);
    decisionState.getTransitionSet().add(elseTransition);
    return decisionState;
}

Example 3 with Expression

use of org.springframework.binding.expression.Expression in project cas by apereo.

the class AbstractCasWebflowConfigurer method createMappingToSubflowState.

/**
     * Create mapping to subflow state.
     *
     * @param name     the name
     * @param value    the value
     * @param required the required
     * @param type     the type
     * @return the default mapping
     */
protected DefaultMapping createMappingToSubflowState(final String name, final String value, final boolean required, final Class type) {
    final ExpressionParser parser = this.flowBuilderServices.getExpressionParser();
    final Expression source = parser.parseExpression(value, new FluentParserContext());
    final Expression target = parser.parseExpression(name, new FluentParserContext());
    final DefaultMapping mapping = new DefaultMapping(source, target);
    mapping.setRequired(required);
    final ConversionExecutor typeConverter = new RuntimeBindingConversionExecutor(type, this.flowBuilderServices.getConversionService());
    mapping.setTypeConverter(typeConverter);
    return mapping;
}

Example 4 with Expression

use of org.springframework.binding.expression.Expression in project cas by apereo.

the class AbstractCasWebflowConfigurer method getExpressionStringFromAction.

/**
     * Gets expression string from action.
     *
     * @param act the act
     * @return the expression string from action
     */
protected Expression getExpressionStringFromAction(final EvaluateAction act) {
    final Field field = ReflectionUtils.findField(act.getClass(), "expression");
    ReflectionUtils.makeAccessible(field);
    return (Expression) ReflectionUtils.getField(field, act);
}

Example 5 with Expression

use of org.springframework.binding.expression.Expression in project cas by apereo.

the class AbstractCasWebflowConfigurer method createEndState.

@Override
public EndState createEndState(final Flow flow, final String id, final String viewId, final boolean redirect) {
    if (!redirect) {
        return createEndState(flow, id, viewId);
    }
    final Expression expression = createExpression(viewId, String.class);
    final ActionExecutingViewFactory viewFactory = new ActionExecutingViewFactory(new ExternalRedirectAction(expression));
    return createEndState(flow, id, viewFactory);
}