Examples of org.springframework.web.servlet.support.BindStatus

Package org.springframework.web.servlet.support

Examples of org.springframework.web.servlet.support.BindStatus

org.springframework.web.servlet.support.BindStatus
Simple adapter to expose the bind status of a field or object. Set as a variable both by the JSP bind tag and Velocity/FreeMarker macros.
Obviously, object status representations (i.e. errors at the object level rather than the field level) do not have an expression and a value but only error codes and messages. For simplicity's sake and to be able to use the same tags and macros, the same status class is used for both scenarios. @author Rod Johnson @author Juergen Hoeller @author Darren Davison @see RequestContext#getBindStatus @see org.springframework.web.servlet.tags.BindTag @see org.springframework.web.servlet.view.AbstractTemplateView#setExposeSpringMacroHelpers


    BindTag tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb");
    assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertTrue("Has status variable", status != null);
    assertTrue("Correct expression", status.getExpression() == null);
    assertTrue("Correct value", status.getValue() == null);
    assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
    assertTrue("Correct isError", status.isError());
    assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
    assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));


    tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb.*");
    assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
    status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertTrue("Has status variable", status != null);
    assertTrue("Correct expression", "*".equals(status.getExpression()));
    assertTrue("Correct value", status.getValue() == null);
    assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
    assertTrue("Correct isError", status.isError());
    assertTrue("Correct errorCodes", status.getErrorCodes().length == 1);
    assertTrue("Correct errorCode", "code1".equals(status.getErrorCode()));
  }

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    BindTag tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb");
    assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertTrue("Has status variable", status != null);
    assertTrue("Correct expression", status.getExpression() == null);
    assertTrue("Correct value", status.getValue() == null);
    assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
    assertTrue("Correct isError", status.isError());
    assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
    assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
    assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(",")));


    tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb.*");
    assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
    status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertTrue("Has status variable", status != null);
    assertTrue("Correct expression", "*".equals(status.getExpression()));
    assertTrue("Correct value", status.getValue() == null);
    assertTrue("Correct displayValue", "".equals(status.getDisplayValue()));
    assertTrue("Correct isError", status.isError());
    assertTrue("Correct errorMessages", status.getErrorMessages().length == 1);
    assertTrue("Correct errorMessage", "message1".equals(status.getErrorMessage()));
    assertTrue("Correct errorMessagesAsString", "message1".equals(status.getErrorMessagesAsString(",")));
  }

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    pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
    BindTag tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb");
    tag.doStartTag();
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("Error messages String should be 'message1'",
        status.getErrorMessagesAsString(","), "message1");


    // two errors
    pc = createPageContext();
    errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
    errors.reject("code1", null, "message1");
    errors.reject("code1", null, "message2");
    pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
    tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb");
    tag.doStartTag();
    status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("Error messages String should be 'message1,message2'",
        status.getErrorMessagesAsString(","), "message1,message2");


    // no errors
    pc = createPageContext();
    errors = new ServletRequestDataBinder(new TestBean(), "tb").getBindingResult();
    pc.getRequest().setAttribute(BindingResult.MODEL_KEY_PREFIX + "tb", errors);
    tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb");
    tag.doStartTag();
    status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("Error messages String should be ''", status.getErrorMessagesAsString(","), "");
  }

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  public void testWithJavaEnum() throws Exception {
    GenericBean testBean = new GenericBean();
    testBean.setCustomEnum(CustomEnum.VALUE_1);
    getPageContext().getRequest().setAttribute("testBean", testBean);
    String selectName = "testBean.customEnum";
    getPageContext().setAttribute(SelectTag.LIST_VALUE_PAGE_ATTRIBUTE, new BindStatus(getRequestContext(), selectName, false));


    this.tag.setValue("VALUE_1");


    int result = this.tag.doStartTag();
    assertEquals(BodyTag.EVAL_BODY_BUFFERED, result);

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    BindTag tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb.array[0]");
    assertTrue("Correct doStartTag return value", tag.doStartTag() == Tag.EVAL_BODY_INCLUDE);
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertTrue("Has status variable", status != null);
    assertTrue("Correct expression", "array[0]".equals(status.getExpression()));
    // because of the custom editor getValue() should return a String
    assertTrue("Value is TestBean", status.getValue() instanceof String);
    assertTrue("Correct value", "something".equals(status.getValue()));
  }

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    TestBean tb = new TestBean("somebody", 99);
    NestedTestBean ntb = new NestedTestBean("juergen&eva");
    tb.setDoctor(ntb);
    pc.getRequest().setAttribute("tb", tb);
    tag.doStartTag();
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("doctor", status.getExpression());
    assertTrue(status.getValue() instanceof NestedTestBean);
    assertTrue(status.getDisplayValue().indexOf("juergen&amp;eva") != -1);
  }

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    tag.setPageContext(pc);
    tag.setPath("tb.someSet");
    tag.setHtmlEscape(true);
    pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
    tag.doStartTag();
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("someSet", status.getExpression());
    assertTrue(status.getValue() instanceof Set);
  }

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    BindTag tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb.name");
    pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
    tag.doStartTag();
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("name", status.getExpression());
    assertEquals("juergen&eva", status.getValue());
  }

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    tag.setPageContext(pc);
    tag.setPath("tb.name");
    tag.setHtmlEscape(true);
    pc.getRequest().setAttribute("tb", new TestBean("juergen&eva", 99));
    tag.doStartTag();
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertEquals("name", status.getExpression());
    assertEquals("juergen&amp;eva", status.getValue());
  }

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    BindTag tag = new BindTag();
    tag.setPageContext(pc);
    tag.setPath("tb");
    pc.getRequest().setAttribute("tb", new TestBean("juergen", 99));
    tag.doStartTag();
    BindStatus status = (BindStatus) pc.getAttribute(BindTag.STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
    assertNull(status.getExpression());
    assertNull(status.getValue());
  }

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