javax.el.ExpressionFactory Java Examples

The following examples show how to use javax.el.ExpressionFactory. 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: EnvironmentBean.java    From sailfish-core with Apache License 2.0 6 votes vote down vote up 
public void loadSort() {

		DataTable dataTable = (DataTable) FacesContext.getCurrentInstance().getViewRoot().findComponent("form:table");

        if(sortField == null || "".equals(sortField)) {
			dataTable.setValueExpression("sortBy", null);
			return;
		}

		String elRaw = null;
        if("table:nameColumn".equals(sortField)) {
			elRaw = "#{service.name}";
        } else if("table:typeColumn".equals(sortField)) {
			elRaw = "#{service.type}";
        } else if("table:statusColumn".equals(sortField)) {
			elRaw = "#{service.status}";
		}

		FacesContext facesContext = FacesContext.getCurrentInstance();
		ELContext elContext = facesContext.getELContext();
		ExpressionFactory elFactory = facesContext.getApplication().getExpressionFactory();
		ValueExpression valueExpresion = elFactory.createValueExpression(elContext, elRaw, Date.class);

        dataTable.setSortOrder(sortOrder);
		dataTable.setValueExpression("sortBy", valueExpresion);
	}
Example #2
Source File: TestValueExpressionImpl.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Test
public void testBug51177ObjectList() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    Object o1 = "String value";
    Object o2 = Integer.valueOf(32);

    List<Object> list = new ArrayList<Object>();
    list.add(0, o1);
    list.add(1, o2);

    ValueExpression var =
        factory.createValueExpression(list, List.class);
    context.getVariableMapper().setVariable("list", var);

    ValueExpression ve1 = factory.createValueExpression(
            context, "${list[0]}", Object.class);
    ve1.setValue(context, o2);
    assertEquals(o2, ve1.getValue(context));

    ValueExpression ve2 = factory.createValueExpression(
            context, "${list[1]}", Object.class);
    ve2.setValue(context, o1);
    assertEquals(o1, ve2.getValue(context));
}
Example #3
Source File: TestELParser.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Test
public void bug56185() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    TesterBeanC beanC = new TesterBeanC();
    ValueExpression var =
        factory.createValueExpression(beanC, TesterBeanC.class);
    context.getVariableMapper().setVariable("myBean", var);

    ValueExpression ve = factory.createValueExpression(context,
        "${(myBean.int1 > 1 and myBean.myBool) or "+
        "((myBean.myBool or myBean.myBool1) and myBean.int1 > 1)}",
        Boolean.class);
    assertEquals(Boolean.FALSE, ve.getValue(context));
    beanC.setInt1(2);
    beanC.setMyBool1(true);
    assertEquals(Boolean.TRUE, ve.getValue(context));
}
Example #4
Source File: TestValueExpressionImpl.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Test
public void testGetValueReference() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    TesterBeanB beanB = new TesterBeanB();
    beanB.setName("Tomcat");
    ValueExpression var =
        factory.createValueExpression(beanB, TesterBeanB.class);
    context.getVariableMapper().setVariable("beanB", var);

    ValueExpression ve = factory.createValueExpression(
            context, "${beanB.name}", String.class);

    // First check the basics work
    String result = (String) ve.getValue(context);
    assertEquals("Tomcat", result);

    // Now check the value reference
    ValueReference vr = ve.getValueReference(context);
    assertNotNull(vr);

    assertEquals(beanB, vr.getBase());
    assertEquals("name", vr.getProperty());
}
Example #5
Source File: MockedJsf2TestContainer.java    From deltaspike with Apache License 2.0 6 votes vote down vote up 
protected void applyContainerConfig()
{
    //add the default values
    servletContext.addInitParameter("javax.faces.PROJECT_STAGE", "UnitTest");
    servletContext.addInitParameter("javax.faces.PARTIAL_STATE_SAVING", "true");
    servletContext.addInitParameter("javax.faces.FACELETS_REFRESH_PERIOD", "-1");

    servletContext.addInitParameter("org.apache.myfaces.INITIALIZE_ALWAYS_STANDALONE", "true");
    servletContext.addInitParameter("org.apache.myfaces.spi.InjectionProvider",
        "org.apache.myfaces.spi.impl.NoInjectionAnnotationInjectionProvider");
    servletContext.addInitParameter("org.apache.myfaces.config.annotation.LifecycleProvider",
        "org.apache.myfaces.config.annotation.NoInjectionAnnotationLifecycleProvider");
    servletConfig.addInitParameter("org.apache.myfaces.CHECKED_VIEWID_CACHE_ENABLED", "false");

    servletContext.addInitParameter(ExpressionFactory.class.getName(), "org.apache.el.ExpressionFactoryImpl");
    //add custom values (might replace the default values)
    for (Map.Entry<String, String> entry : containerConfig.entrySet())
    {
        servletContext.addInitParameter(entry.getKey(), entry.getValue());
    }
}
Example #6
Source File: ExpressionEvaluatorImpl.java    From packagedrone with Eclipse Public License 1.0 6 votes vote down vote up 
public Expression parseExpression(String expression,
                                  Class expectedType,
                                  FunctionMapper fMapper )
        throws ELException {

    ExpressionFactory fac = ExpressionFactory.newInstance();
    javax.el.ValueExpression expr;
    ELContextImpl elContext = new ELContextImpl(null);
    javax.el.FunctionMapper fm = new FunctionMapperWrapper(fMapper);
    elContext.setFunctionMapper(fm);
    try {
        expr = fac.createValueExpression(
                       elContext,
                       expression, expectedType);
    } catch (javax.el.ELException ex) {
        throw new ELException(ex);
    }
    return new ExpressionImpl(expr, pageContext);
}
Example #7
Source File: TestValueExpressionImpl.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Test
public void testBug51177ObjectMap() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    Object o1 = "String value";
    Object o2 = Integer.valueOf(32);

    Map<Object,Object> map = new HashMap<Object,Object>();
    map.put("key1", o1);
    map.put("key2", o2);

    ValueExpression var =
        factory.createValueExpression(map, Map.class);
    context.getVariableMapper().setVariable("map", var);

    ValueExpression ve1 = factory.createValueExpression(
            context, "${map.key1}", Object.class);
    ve1.setValue(context, o2);
    assertEquals(o2, ve1.getValue(context));

    ValueExpression ve2 = factory.createValueExpression(
            context, "${map.key2}", Object.class);
    ve2.setValue(context, o1);
    assertEquals(o1, ve2.getValue(context));
}
Example #8
Source File: TestELParser.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testJavaKeyWordSuffix() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    TesterBeanA beanA = new TesterBeanA();
    beanA.setInt("five");
    ValueExpression var =
        factory.createValueExpression(beanA, TesterBeanA.class);
    context.getVariableMapper().setVariable("beanA", var);

    // Should fail
    Exception e = null;
    try {
        factory.createValueExpression(context, "${beanA.int}",
                String.class);
    } catch (ELException ele) {
        e = ele;
    }
    Assert.assertNotNull(e);
}
Example #9
Source File: TestELParser.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
private void doTestBug56179(int parenthesesCount, String innerExpr) {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    ValueExpression var =
        factory.createValueExpression(Boolean.TRUE, Boolean.class);
    context.getVariableMapper().setVariable("test", var);

    StringBuilder expr = new StringBuilder();
    expr.append("${");
    for (int i = 0; i < parenthesesCount; i++) {
        expr.append("(");
    }
    expr.append(innerExpr);
    for (int i = 0; i < parenthesesCount; i++) {
        expr.append(")");
    }
    expr.append("}");
    ValueExpression ve = factory.createValueExpression(
            context, expr.toString(), String.class);

    String result = (String) ve.getValue(context);
    Assert.assertEquals("true", result);
}
Example #10
Source File: TestELParser.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void bug56185() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    TesterBeanC beanC = new TesterBeanC();
    ValueExpression var =
        factory.createValueExpression(beanC, TesterBeanC.class);
    context.getVariableMapper().setVariable("myBean", var);

    ValueExpression ve = factory.createValueExpression(context,
        "${(myBean.int1 > 1 and myBean.myBool) or "+
        "((myBean.myBool or myBean.myBool1) and myBean.int1 > 1)}",
        Boolean.class);
    Assert.assertEquals(Boolean.FALSE, ve.getValue(context));
    beanC.setInt1(2);
    beanC.setMyBool1(true);
    Assert.assertEquals(Boolean.TRUE, ve.getValue(context));
}
Example #11
Source File: TestELParser.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Test
public void bug56185() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    TesterBeanC beanC = new TesterBeanC();
    ValueExpression var =
        factory.createValueExpression(beanC, TesterBeanC.class);
    context.getVariableMapper().setVariable("myBean", var);

    ValueExpression ve = factory.createValueExpression(context,
        "${(myBean.int1 > 1 and myBean.myBool) or "+
        "((myBean.myBool or myBean.myBool1) and myBean.int1 > 1)}",
        Boolean.class);
    assertEquals(Boolean.FALSE, ve.getValue(context));
    beanC.setInt1(2);
    beanC.setMyBool1(true);
    assertEquals(Boolean.TRUE, ve.getValue(context));
}
Example #12
Source File: TestValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testGetValueReference() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    TesterBeanB beanB = new TesterBeanB();
    beanB.setName("Tomcat");
    ValueExpression var =
        factory.createValueExpression(beanB, TesterBeanB.class);
    context.getVariableMapper().setVariable("beanB", var);

    ValueExpression ve = factory.createValueExpression(
            context, "${beanB.name}", String.class);

    // First check the basics work
    String result = (String) ve.getValue(context);
    Assert.assertEquals("Tomcat", result);

    // Now check the value reference
    ValueReference vr = ve.getValueReference(context);
    Assert.assertNotNull(vr);

    Assert.assertEquals(beanB, vr.getBase());
    Assert.assertEquals("name", vr.getProperty());
}
Example #13
Source File: TestELParser.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
@Test
public void testJavaKeyWordIdentifier() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    TesterBeanA beanA = new TesterBeanA();
    beanA.setInt("five");
    ValueExpression var =
        factory.createValueExpression(beanA, TesterBeanA.class);
    context.getVariableMapper().setVariable("this", var);

    // Should fail
    Exception e = null;
    try {
        factory.createValueExpression(context, "${this}", String.class);
    } catch (ELException ele) {
        e = ele;
    }
    assertNotNull(e);
}
Example #14
Source File: TestValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testBug50105() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    TesterEnum testEnum = TesterEnum.APPLE;

    ValueExpression var =
        factory.createValueExpression(testEnum, TesterEnum.class);
    context.getVariableMapper().setVariable("testEnum", var);

    // When coercing an Enum to a String, name() should always be used.
    ValueExpression ve1 = factory.createValueExpression(
            context, "${testEnum}", String.class);
    String result1 = (String) ve1.getValue(context);
    Assert.assertEquals("APPLE", result1);

    ValueExpression ve2 = factory.createValueExpression(
            context, "foo${testEnum}bar", String.class);
    String result2 = (String) ve2.getValue(context);
    Assert.assertEquals("fooAPPLEbar", result2);
}
Example #15
Source File: TestValueExpressionImpl.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Test
public void testBug50105() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    TesterEnum testEnum = TesterEnum.APPLE;

    ValueExpression var =
        factory.createValueExpression(testEnum, TesterEnum.class);
    context.getVariableMapper().setVariable("testEnum", var);

    // When coercing an Enum to a String, name() should always be used.
    ValueExpression ve1 = factory.createValueExpression(
            context, "${testEnum}", String.class);
    String result1 = (String) ve1.getValue(context);
    assertEquals("APPLE", result1);

    ValueExpression ve2 = factory.createValueExpression(
            context, "foo${testEnum}bar", String.class);
    String result2 = (String) ve2.getValue(context);
    assertEquals("fooAPPLEbar", result2);
}
Example #16
Source File: TestValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testBug51177ObjectList() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    Object o1 = "String value";
    Object o2 = Integer.valueOf(32);

    List<Object> list = new ArrayList<>();
    list.add(0, o1);
    list.add(1, o2);

    ValueExpression var =
        factory.createValueExpression(list, List.class);
    context.getVariableMapper().setVariable("list", var);

    ValueExpression ve1 = factory.createValueExpression(
            context, "${list[0]}", Object.class);
    ve1.setValue(context, o2);
    Assert.assertEquals(o2, ve1.getValue(context));

    ValueExpression ve2 = factory.createValueExpression(
            context, "${list[1]}", Object.class);
    ve2.setValue(context, o1);
    Assert.assertEquals(o1, ve2.getValue(context));
}
Example #17
Source File: TestELParser.java    From Tomcat7.0.67 with Apache License 2.0 6 votes vote down vote up 
private void doTestBug56179(int parenthesesCount, String innerExpr) {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    ValueExpression var =
        factory.createValueExpression(Boolean.TRUE, Boolean.class);
    context.getVariableMapper().setVariable("test", var);

    StringBuilder expr = new StringBuilder();
    expr.append("${");
    for (int i = 0; i < parenthesesCount; i++) {
        expr.append("(");
    }
    expr.append(innerExpr);
    for (int i = 0; i < parenthesesCount; i++) {
        expr.append(")");
    }
    expr.append("}");
    ValueExpression ve = factory.createValueExpression(
            context, expr.toString(), String.class);

    String result = (String) ve.getValue(context);
    assertEquals("true", result);
}
Example #18
Source File: TestValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testBug51544Bean() throws Exception {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    TesterBeanA beanA = new TesterBeanA();
    beanA.setValList(Collections.emptyList());

    ValueExpression var =
        factory.createValueExpression(beanA, TesterBeanA.class);
    context.getVariableMapper().setVariable("beanA", var);

    ValueExpression ve = factory.createValueExpression(
            context, "${beanA.valList.size()}", Integer.class);

    Integer result = (Integer) ve.getValue(context);
    Assert.assertEquals(Integer.valueOf(0), result);
}
Example #19
Source File: TestValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testBug51544Direct() throws Exception {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    List<?> list = Collections.emptyList();

    ValueExpression var =
        factory.createValueExpression(list, List.class);
    context.getVariableMapper().setVariable("list", var);

    ValueExpression ve = factory.createValueExpression(
            context, "${list.size()}", Integer.class);

    Integer result = (Integer) ve.getValue(context);
    Assert.assertEquals(Integer.valueOf(0), result);
}
Example #20
Source File: TestValueExpressionImpl.java    From Tomcat8-Source-Read with MIT License 6 votes vote down vote up 
@Test
public void testBug56522SetNullValue() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl(factory);

    TesterBeanB beanB = new TesterBeanB();
    beanB.setName("Tomcat");
    ValueExpression var =
        factory.createValueExpression(beanB, TesterBeanB.class);
    context.getVariableMapper().setVariable("beanB", var);

    ValueExpression ve = factory.createValueExpression(
            context, "${beanB.name}", String.class);

    // First check the basics work
    String result = (String) ve.getValue(context);
    Assert.assertEquals("Tomcat", result);

    // Now set the value to null
    ve.setValue(context, null);

    Assert.assertEquals("", beanB.getName());
}
Example #21
Source File: ELPlugin.java    From seed with Mozilla Public License 2.0 6 votes vote down vote up 
private static Object buildExpressionFactory() {
    try {
        // EL will use the TCCL to find the implementation
        return ExpressionFactory.newInstance();
    } catch (Throwable t1) {
        // If TCCL failed, we use the ClassLoader that loaded the ELPlugin
        final ClassLoader originalTCCL = run(Thread.currentThread()::getContextClassLoader);
        try {
            run((PrivilegedAction<Void>) () -> {
                Thread.currentThread().setContextClassLoader(ELPlugin.class.getClassLoader());
                return null;
            });
            return ExpressionFactory.newInstance();
        } catch (Throwable t2) {
            throw SeedException.wrap(t2, ELErrorCode.UNABLE_TO_INSTANTIATE_EXPRESSION_FACTORY);
        } finally {
            // restore original TCCL
            run((PrivilegedAction<Void>) () -> {
                Thread.currentThread().setContextClassLoader(originalTCCL);
                return null;
            });
        }
    }
}
Example #22
Source File: TestValueExpressionImpl.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Test
public void testBug51177ObjectList() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    Object o1 = "String value";
    Object o2 = Integer.valueOf(32);

    List<Object> list = new ArrayList<Object>();
    list.add(0, o1);
    list.add(1, o2);

    ValueExpression var =
        factory.createValueExpression(list, List.class);
    context.getVariableMapper().setVariable("list", var);

    ValueExpression ve1 = factory.createValueExpression(
            context, "${list[0]}", Object.class);
    ve1.setValue(context, o2);
    assertEquals(o2, ve1.getValue(context));

    ValueExpression ve2 = factory.createValueExpression(
            context, "${list[1]}", Object.class);
    ve2.setValue(context, o1);
    assertEquals(o1, ve2.getValue(context));
}
Example #23
Source File: TestELParser.java    From tomcatsrc with Apache License 2.0 6 votes vote down vote up 
@Test
public void testJavaKeyWordSuffix() {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    TesterBeanA beanA = new TesterBeanA();
    beanA.setInt("five");
    ValueExpression var =
        factory.createValueExpression(beanA, TesterBeanA.class);
    context.getVariableMapper().setVariable("beanA", var);

    // Should fail
    Exception e = null;
    try {
        factory.createValueExpression(context, "${beanA.int}",
                String.class);
    } catch (ELException ele) {
        e = ele;
    }
    assertNotNull(e);
}
Example #24
Source File: FeelEngineImpl.java    From camunda-bpm-platform with Apache License 2.0 5 votes vote down vote up 
public FeelEngineImpl(FeelToJuelTransform transform, ExpressionFactory expressionFactory, ElContextFactory elContextFactory,
    Cache<TransformExpressionCacheKey, String> transformExpressionCache) {
  this.transform = transform;
  this.expressionFactory = expressionFactory;
  this.elContextFactory = elContextFactory;
  this.transformExpressionCache = transformExpressionCache;
}
Example #25
Source File: ElExpressionSample.java    From Android_Code_Arbiter with GNU Lesser General Public License v3.0 5 votes vote down vote up 
public void unsafeEL(String expression) {
    FacesContext context = FacesContext.getCurrentInstance();
    ExpressionFactory expressionFactory = context.getApplication().getExpressionFactory();
    ELContext elContext = context.getELContext();
    ValueExpression vex = expressionFactory.createValueExpression(elContext, expression, String.class);
    String result = (String) vex.getValue(elContext);
    System.out.println(result);
}
Example #26
Source File: TestELParser.java    From tomcatsrc with Apache License 2.0 5 votes vote down vote up 
private void testExpression(String expression, String expected) {
    ExpressionFactory factory = ExpressionFactory.newInstance();
    ELContext context = new ELContextImpl();

    ValueExpression ve = factory.createValueExpression(
            context, expression, String.class);

    String result = (String) ve.getValue(context);
    assertEquals(expected, result);
}
Example #27
Source File: FeelEngineImpl.java    From camunda-engine-dmn with Apache License 2.0 5 votes vote down vote up 
public FeelEngineImpl(FeelToJuelTransform transform, ExpressionFactory expressionFactory, ElContextFactory elContextFactory,
    Cache<TransformExpressionCacheKey, String> transformExpressionCache) {
  this.transform = transform;
  this.expressionFactory = expressionFactory;
  this.elContextFactory = elContextFactory;
  this.transformExpressionCache = transformExpressionCache;
}
Example #28
Source File: ELModule.java    From seed with Mozilla Public License 2.0 5 votes vote down vote up 
@Override
protected void configure() {
    bind(ExpressionFactory.class).toInstance(expressionFactory);
    bind(ELService.class).to(ELServiceInternal.class);
    bind(ELContextBuilder.class).to(ELContextBuilderImpl.class);

    for (Class<ELHandler<?>> elHandlerClass : elMap.values()) {
        bind(elHandlerClass);
    }

    // bind the map of annotation -> ELHandler
    bind(new AnnotationHandlersTypeLiteral()).toInstance(ImmutableMap.copyOf(elMap));
}
Example #29
Source File: RuleEvaluator.java    From proctor with Apache License 2.0 5 votes vote down vote up 
RuleEvaluator(
        @Nonnull final ExpressionFactory expressionFactory,
        @Nonnull final FunctionMapper functionMapper,
        @Nonnull final Map<String, Object> testConstantsMap
) {
    this.expressionFactory = expressionFactory;

    this.functionMapper = functionMapper;

    elResolver = constructStandardElResolver();

    testConstants = ProctorUtils.convertToValueExpressionMap(expressionFactory, testConstantsMap);
}
Example #30
Source File: RandomTestChooser.java    From proctor with Apache License 2.0 5 votes vote down vote up 
public RandomTestChooser(
        final ExpressionFactory expressionFactory,
        final FunctionMapper functionMapper,
        final String testName,
        @Nonnull final ConsumableTestDefinition testDefinition
) {
    this(System.nanoTime(), expressionFactory, functionMapper, testName, testDefinition);
}