javax.el.VariableMapper Java Examples

The following examples show how to use javax.el.VariableMapper. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example #1
Source File: AstIdentifier.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.getType(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    Class<?> result = ctx.getELResolver().getType(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #2
Source File: AstIdentifier.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Override
public ValueReference getValueReference(EvaluationContext ctx) {
    VariableMapper varMapper = ctx.getVariableMapper();

    if (varMapper == null) {
        return null;
    }

    ValueExpression expr = varMapper.resolveVariable(this.image);

    if (expr == null) {
        return null;
    }

    return expr.getValueReference(ctx);
}
Example #3
Source File: AstIdentifier.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Override
public void setValue(EvaluationContext ctx, Object value)
        throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            expr.setValue(ctx.getELContext(), value);
            return;
        }
    }
    ctx.setPropertyResolved(false);
    ctx.getELResolver().setValue(ctx, null, this.image, value);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
}
Example #4
Source File: AstIdentifier.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.isReadOnly(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    boolean result = ctx.getELResolver().isReadOnly(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #5
Source File: AstIdentifier.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.getType(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    Class<?> result = ctx.getELResolver().getType(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #6
Source File: RuleEvaluator.java    From proctor with Apache License 2.0 6 votes vote down vote up 
@Nonnull
ELContext createELContext(@Nonnull final VariableMapper variableMapper) {
    return new ELContext() {
        @Nonnull
        @Override
        public ELResolver getELResolver() {
            return elResolver;
        }

        @Nonnull
        @Override
        public FunctionMapper getFunctionMapper() {
            return functionMapper;
        }

        @Nonnull
        @Override
        public VariableMapper getVariableMapper() {
            return variableMapper;
        }
    };
}
Example #7
Source File: TesterVariableMapperImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testSetVariable01() {
    ExpressionFactory factory = ELManager.getExpressionFactory();
    ELContext context = new TesterELContext();
    ValueExpression ve1 =
            factory.createValueExpression(context, "${1}", int.class);
    ValueExpression ve2 =
            factory.createValueExpression(context, "${2}", int.class);
    ValueExpression ve3 =
            factory.createValueExpression(context, "${3}", int.class);

    VariableMapper mapper = new VariableMapperImpl();

    mapper.setVariable("var1", ve1);
    mapper.setVariable("var2", ve2);
    mapper.setVariable("var3", ve3);


    mapper.setVariable("var2", null);

    Assert.assertEquals(ve1, mapper.resolveVariable("var1"));
    Assert.assertNull(mapper.resolveVariable("var2"));
    Assert.assertEquals(ve3, mapper.resolveVariable("var3"));
}
Example #8
Source File: CdiResolver.java    From flowable-engine with Apache License 2.0 6 votes vote down vote up 
public CdiResolver() {
    context = new javax.el.ELContext() {

        @Override
        public VariableMapper getVariableMapper() {
            return null;
        }

        @Override
        public FunctionMapper getFunctionMapper() {
            return null;
        }

        @Override
        public javax.el.ELResolver getELResolver() {
            return getWrappedResolver();
        }
    };
}
Example #9
Source File: AstIdentifier.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Override
public Class<?> getType(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.getType(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    Class<?> result = ctx.getELResolver().getType(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #10
Source File: AstIdentifier.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.isReadOnly(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    boolean result = ctx.getELResolver().isReadOnly(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #11
Source File: AstIdentifier.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Override
public void setValue(EvaluationContext ctx, Object value)
        throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            expr.setValue(ctx.getELContext(), value);
            return;
        }
    }
    ctx.setPropertyResolved(false);
    ctx.getELResolver().setValue(ctx, null, this.image, value);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
}
Example #12
Source File: AstIdentifier.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Override
public ValueReference getValueReference(EvaluationContext ctx) {
    VariableMapper varMapper = ctx.getVariableMapper();

    if (varMapper == null) {
        return null;
    }

    ValueExpression expr = varMapper.resolveVariable(this.image);

    if (expr == null) {
        return null;
    }

    return expr.getValueReference(ctx);
}
Example #13
Source File: AstIdentifier.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Override
public ValueReference getValueReference(EvaluationContext ctx) {
    VariableMapper varMapper = ctx.getVariableMapper();

    if (varMapper == null) {
        return null;
    }

    ValueExpression expr = varMapper.resolveVariable(this.image);

    if (expr == null) {
        return null;
    }

    return expr.getValueReference(ctx);
}
Example #14
Source File: AstIdentifier.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Override
public Object getValue(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.getValue(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    Object result = ctx.getELResolver().getValue(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #15
Source File: AstIdentifier.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Override
public void setValue(EvaluationContext ctx, Object value)
        throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            expr.setValue(ctx.getELContext(), value);
            return;
        }
    }
    ctx.setPropertyResolved(false);
    ctx.getELResolver().setValue(ctx, null, this.image, value);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
}
Example #16
Source File: AstIdentifier.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Override
public boolean isReadOnly(EvaluationContext ctx) throws ELException {
    VariableMapper varMapper = ctx.getVariableMapper();
    if (varMapper != null) {
        ValueExpression expr = varMapper.resolveVariable(this.image);
        if (expr != null) {
            return expr.isReadOnly(ctx.getELContext());
        }
    }
    ctx.setPropertyResolved(false);
    boolean result = ctx.getELResolver().isReadOnly(ctx, null, this.image);
    if (!ctx.isPropertyResolved()) {
        throw new PropertyNotFoundException(MessageFactory.get(
                "error.resolver.unhandled.null", this.image));
    }
    return result;
}
Example #17
Source File: ElMetricName.java    From metrics-cdi with Apache License 2.0 6 votes vote down vote up 
private ELContext createELContext(final ELResolver resolver, final FunctionMapper functionMapper, final VariableMapper variableMapper) {

        return new ELContext() {
            @Override
            public ELResolver getELResolver() {
                return resolver;
            }

            @Override
            public FunctionMapper getFunctionMapper() {
                return functionMapper;
            }

            @Override
            public VariableMapper getVariableMapper() {
                return variableMapper;
            }
        };
    }
Example #18
Source File: CdiResolver.java    From activiti6-boot2 with Apache License 2.0 6 votes vote down vote up 
public CdiResolver() {
  context = new javax.el.ELContext() {

    @Override
    public VariableMapper getVariableMapper() {
      return null;
    }

    @Override
    public FunctionMapper getFunctionMapper() {
      return null;
    }

    @Override
    public javax.el.ELResolver getELResolver() {
      return getWrappedResolver();
    }
  };
}
Example #19
Source File: ValueExpressionImpl.java    From Tomcat7.0.67 with Apache License 2.0 5 votes vote down vote up 
@Override
public void readExternal(ObjectInput in) throws IOException,
        ClassNotFoundException {
    this.expr = in.readUTF();
    String type = in.readUTF();
    if (!"".equals(type)) {
        this.expectedType = ReflectionUtil.forName(type);
    }
    this.fnMapper = (FunctionMapper) in.readObject();
    this.varMapper = (VariableMapper) in.readObject();
}
Example #20
Source File: MethodExpressionImpl.java    From tomcatsrc with Apache License 2.0 5 votes vote down vote up 
/**
 * @param expr
 * @param node
 * @param fnMapper
 * @param expectedType
 * @param paramTypes
 */
public MethodExpressionImpl(String expr, Node node,
        FunctionMapper fnMapper, VariableMapper varMapper,
        Class<?> expectedType, Class<?>[] paramTypes) {
    super();
    this.expr = expr;
    this.node = node;
    this.fnMapper = fnMapper;
    this.varMapper = varMapper;
    this.expectedType = expectedType;
    this.paramTypes = paramTypes;
}
Example #21
Source File: AstIdentifier.java    From tomcatsrc with Apache License 2.0 5 votes vote down vote up 
private final MethodExpression getMethodExpression(EvaluationContext ctx)
        throws ELException {
    Object obj = null;

    // case A: ValueExpression exists, getValue which must
    // be a MethodExpression
    VariableMapper varMapper = ctx.getVariableMapper();
    ValueExpression ve = null;
    if (varMapper != null) {
        ve = varMapper.resolveVariable(this.image);
        if (ve != null) {
            obj = ve.getValue(ctx);
        }
    }

    // case B: evaluate the identity against the ELResolver, again, must be
    // a MethodExpression to be able to invoke
    if (ve == null) {
        ctx.setPropertyResolved(false);
        obj = ctx.getELResolver().getValue(ctx, null, this.image);
    }

    // finally provide helpful hints
    if (obj instanceof MethodExpression) {
        return (MethodExpression) obj;
    } else if (obj == null) {
        throw new MethodNotFoundException("Identity '" + this.image
                + "' was null and was unable to invoke");
    } else {
        throw new ELException(
                "Identity '"
                        + this.image
                        + "' does not reference a MethodExpression instance, returned type: "
                        + obj.getClass().getName());
    }
}
Example #22
Source File: AstIdentifier.java    From Tomcat8-Source-Read with MIT License 5 votes vote down vote up 
private final MethodExpression getMethodExpression(EvaluationContext ctx)
        throws ELException {
    Object obj = null;

    // case A: ValueExpression exists, getValue which must
    // be a MethodExpression
    VariableMapper varMapper = ctx.getVariableMapper();
    ValueExpression ve = null;
    if (varMapper != null) {
        ve = varMapper.resolveVariable(this.image);
        if (ve != null) {
            obj = ve.getValue(ctx);
        }
    }

    // case B: evaluate the identity against the ELResolver, again, must be
    // a MethodExpression to be able to invoke
    if (ve == null) {
        ctx.setPropertyResolved(false);
        obj = ctx.getELResolver().getValue(ctx, null, this.image);
    }

    // finally provide helpful hints
    if (obj instanceof MethodExpression) {
        return (MethodExpression) obj;
    } else if (obj == null) {
        throw new MethodNotFoundException("Identity '" + this.image
                + "' was null and was unable to invoke");
    } else {
        throw new ELException(
                "Identity '"
                        + this.image
                        + "' does not reference a MethodExpression instance, returned type: "
                        + obj.getClass().getName());
    }
}
Example #23
Source File: MethodExpressionImpl.java    From tomcatsrc with Apache License 2.0 5 votes vote down vote up 
@Override
public void readExternal(ObjectInput in) throws IOException,
        ClassNotFoundException {
    this.expr = in.readUTF();
    String type = in.readUTF();
    if (!"".equals(type)) {
        this.expectedType = ReflectionUtil.forName(type);
    }
    this.paramTypes = ReflectionUtil.toTypeArray(((String[]) in
            .readObject()));
    this.fnMapper = (FunctionMapper) in.readObject();
    this.varMapper = (VariableMapper) in.readObject();
}
Example #24
Source File: ValueExpressionImpl.java    From Tomcat7.0.67 with Apache License 2.0 5 votes vote down vote up 
/**
 * 
 */
public ValueExpressionImpl(String expr, Node node, FunctionMapper fnMapper,
        VariableMapper varMapper, Class<?> expectedType) {
    this.expr = expr;
    this.node = node;
    this.fnMapper = fnMapper;
    this.varMapper = varMapper;
    this.expectedType = expectedType;
}
Example #25
Source File: RuleEvaluator.java    From proctor with Apache License 2.0 5 votes vote down vote up 
@Nonnull
ELContext createElContext(@Nonnull final Map<String, Object> values) {
    final Map<String, ValueExpression> localContext = ProctorUtils.convertToValueExpressionMap(expressionFactory, values);
    @SuppressWarnings("unchecked")
    final VariableMapper variableMapper = new MulticontextReadOnlyVariableMapper(testConstants, localContext);
    return createELContext(variableMapper);
}
Example #26
Source File: ExpressionBuilder.java    From Tomcat7.0.67 with Apache License 2.0 5 votes vote down vote up 
/**
 *
 */
public ExpressionBuilder(String expression, ELContext ctx)
        throws ELException {
    this.expression = expression;

    FunctionMapper ctxFn = ctx.getFunctionMapper();
    VariableMapper ctxVar = ctx.getVariableMapper();

    if (ctxFn != null) {
        this.fnMapper = new FunctionMapperFactory(ctxFn);
    }
    if (ctxVar != null) {
        this.varMapper = new VariableMapperFactory(ctxVar);
    }
}
Example #27
Source File: MethodExpressionImpl.java    From Tomcat7.0.67 with Apache License 2.0 5 votes vote down vote up 
@Override
public void readExternal(ObjectInput in) throws IOException,
        ClassNotFoundException {
    this.expr = in.readUTF();
    String type = in.readUTF();
    if (!"".equals(type)) {
        this.expectedType = ReflectionUtil.forName(type);
    }
    this.paramTypes = ReflectionUtil.toTypeArray(((String[]) in
            .readObject()));
    this.fnMapper = (FunctionMapper) in.readObject();
    this.varMapper = (VariableMapper) in.readObject();
}
Example #28
Source File: ValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 5 votes vote down vote up 
@Override
public void readExternal(ObjectInput in) throws IOException,
        ClassNotFoundException {
    this.expr = in.readUTF();
    String type = in.readUTF();
    if (!"".equals(type)) {
        this.expectedType = ReflectionUtil.forName(type);
    }
    this.fnMapper = (FunctionMapper) in.readObject();
    this.varMapper = (VariableMapper) in.readObject();
}
Example #29
Source File: MethodExpressionImpl.java    From Tomcat7.0.67 with Apache License 2.0 5 votes vote down vote up 
/**
 * @param expr
 * @param node
 * @param fnMapper
 * @param expectedType
 * @param paramTypes
 */
public MethodExpressionImpl(String expr, Node node,
        FunctionMapper fnMapper, VariableMapper varMapper,
        Class<?> expectedType, Class<?>[] paramTypes) {
    super();
    this.expr = expr;
    this.node = node;
    this.fnMapper = fnMapper;
    this.varMapper = varMapper;
    this.expectedType = expectedType;
    this.paramTypes = paramTypes;
}
Example #30
Source File: AstIdentifier.java    From Tomcat7.0.67 with Apache License 2.0 5 votes vote down vote up 
private final MethodExpression getMethodExpression(EvaluationContext ctx)
        throws ELException {
    Object obj = null;

    // case A: ValueExpression exists, getValue which must
    // be a MethodExpression
    VariableMapper varMapper = ctx.getVariableMapper();
    ValueExpression ve = null;
    if (varMapper != null) {
        ve = varMapper.resolveVariable(this.image);
        if (ve != null) {
            obj = ve.getValue(ctx);
        }
    }

    // case B: evaluate the identity against the ELResolver, again, must be
    // a MethodExpression to be able to invoke
    if (ve == null) {
        ctx.setPropertyResolved(false);
        obj = ctx.getELResolver().getValue(ctx, null, this.image);
    }

    // finally provide helpful hints
    if (obj instanceof MethodExpression) {
        return (MethodExpression) obj;
    } else if (obj == null) {
        throw new MethodNotFoundException("Identity '" + this.image
                + "' was null and was unable to invoke");
    } else {
        throw new ELException(
                "Identity '"
                        + this.image
                        + "' does not reference a MethodExpression instance, returned type: "
                        + obj.getClass().getName());
    }
}