Examples of net.htmlparser.jericho.FormFields

net.htmlparser.jericho.FormFields
3.org/TR/html401/interact/forms.html#form-data-set">form data set (represented as a field data set) into a simple array format, suitable for storage in a tabular format such as a database table or .CSV file.
The methods available for this purpose are:
{@link #getColumnLabels() String[] getColumnLabels()}
{@link #getColumnValues(Map) String[] getColumnValues(Map)}
{@link #getColumnValues() String[] getColumnValues()}

The {@link Util} class contains a method called {@link Util#outputCSVLine(Writer,String[]) outputCSVLine(Writer,String[])}which writes the String[] output of these methods to the specified Writer in .CSV format.
The implementation of these methods makes use of certain properties in the {@link FormField} class that describe the structure of the data in each field.These properties can be utilised directly in the event that a form data set is to be converted from its normal format into some other type of data structure.
To access a specific {@link FormControl} from a FormFields object, use:
- formFields. {@link #get(String) get(fieldName)}. {@link FormField#getFormControl() getFormControl()}if the control is the only one with the specified {@linkplain FormControl#getName() name}, or
- formFields. {@link #get(String) get(fieldName)}. {@link FormField#getFormControl(String) getFormControl(predefinedValue)}to retrieve the control having the speficied {@linkplain FormControl#getPredefinedValue() predefined value}if it is part of a {@linkplain FormField field} containing multiple controls.
The term field data set is used in this library to refer to a data structure consisting of a set of names (in lower case), each mapped to one or more values. Generally, this is represented by a data type of java.util.Map<String,String[]>, with the keys (names) being of type String and the values represented by an array containing one or more items of type String. A field data set can be used to represent the data in an HTML form data set.
FormFields instances are obtained using the {@link #FormFields(Collection formControls)} constructoror by calling the {@link Segment#getFormFields()} method.
The case sensitivity of form field names is determined by the static {@link Config#CurrentCompatibilityMode}. {@link Config.CompatibilityMode#isFormFieldNameCaseInsensitive() FormFieldNameCaseInsensitive} property.
Examples:
1. Write the data received from in the current ServletRequest to a .CSV file, and then display the form populated with this data:
```
 Source source=new Source(htmlTextOfOriginatingForm); FormFields formFields=source.getFormFields(); File csvOutputFile=new File("FormData.csv"); boolean outputHeadings=!csvOutputFile.exists(); Writer writer=new FileWriter(csvOutputFile,true); if (outputHeadings) Util.outputCSVLine(writer,formFields.getColumnLabels()); Util.outputCSVLine(writer,formFields.getColumnValues(servletRequest.getParameterMap())); writer.close(); formFields.setDataSet(servletRequest.getParameterMap()); OutputDocument outputDocument=new OutputDocument(source); outputDocument.replace(formFields); outputDocument.writeTo(servletResponse.getWriter());
```
  See also the sample program FormFieldCSVOutput.
2. Replace the initial values of controls in the form named "MyForm" with new values:
```
 Source source=new Source(htmlText); Element myForm=null; List formElements=source.getAllElements(Tag.FORM); for (Iterator i=formElements.iterator(); i.hasNext();) { Element formElement=(Element)i.next(); String formName=formElement.getAttributes().getValue("name"); if ("MyForm".equals(formName)) { myForm=form; break; } } FormFields formFields=myForm.getFormFields(); formFields.clearValues(); // clear any values that might be set in the source document formFields.addValue("Name","Humphrey Bear"); formFields.addValue("MailingList","A"); formFields.addValue("MailingList","B"); formFields.addValue("FavouriteFare","honey"); OutputDocument outputDocument=new OutputDocument(source); outputDocument.replace(formFields); String newHtmlText=outputDocument.toString();
```
  See also the sample program FormFieldSetValues.
3. Change the display characteristics of individual controls:
```
 Source source=new Source(htmlText); FormFields formFields=source.getFormFields(); // disable some controls: formFields.get("Password").getFormControl().setDisabled(true); FormField mailingListFormField=formFields.get("MailingList"); mailingListFormField.setValue("C"); mailingListFormField.getFormControl("C").setDisabled(true); mailingListFormField.getFormControl("D").setDisabled(true); // remove some controls: formFields.get("button1").getFormControl().setOutputStyle(FormControlOutputStyle.REMOVE); FormControl rhubarbFormControl=formFields.get("FavouriteFare").getFormControl("rhubarb"); rhubarbFormControl.setOutputStyle(FormControlOutputStyle.REMOVE); // set some controls to display value: formFields.setValue("Address","The Lodge\nDeakin  ACT  2600\nAustralia"); formFields.get("Address").getFormControl().setOutputStyle(FormControlOutputStyle.DISPLAY_VALUE); FormField favouriteSportsFormField=formFields.get("FavouriteSports"); favouriteSportsFormField.setValue("BB"); favouriteSportsFormField.addValue("AFL"); favouriteSportsFormField.getFormControl().setOutputStyle(FormControlOutputStyle.DISPLAY_VALUE); OutputDocument outputDocument=new OutputDocument(source); outputDocument.replace(formFields); // adds all segments necessary to effect changes String newHtmlText=outputDocument.toString();
```
  See also the sample program FormControlDisplayCharacteristics.
@see FormField @see FormControl

        List<NameValuePair> result = new ArrayList<NameValuePair>();
        if (input instanceof NameValuePair){
            result.add((NameValuePair) input);
        } else if (input instanceof FormFields){
            //println "parseNameValues() - FormFields - input: ${input.getClass()}, formControls.size(): ${input.formControls.size()}"
            FormFields formFields = (FormFields) input;
            for (Object formControl : formFields.getFormControls()){
                result.addAll(parseNameValues(formControl));
            }


        } else if (input instanceof FormControl){
            //println "parseNameValues() - FormControl - input: ${input.getClass()}, input: ${input}, input.values: ${input.values}, getAttributesMap() : ${input.getPredefinedValues()  }"

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            httpclient.setRedirectStrategy(new LaxRedirectStrategy());
            
            Source source = new Source(EntityUtils.toString(entity));
            List <NameValuePair> nvps = new ArrayList <NameValuePair>();
            FormFields formFields = source.getFormFields();
            
            List<Element> forms = source.getAllElements(HTMLElementName.FORM);
            Assert.assertEquals("Only one form expected but got " + forms.size(), 1, forms.size());
            String postUrl = forms.get(0).getAttributeValue("action");
            
            Assert.assertNotNull("Form field 'wa' not found", formFields.get("wa"));
            Assert.assertNotNull("Form field 'wresult' not found", formFields.get("wresult"));
            
            for (FormField formField : formFields) {
                if (formField.getUserValueCount() != 0) {
                    nvps.add(new BasicNameValuePair(formField.getName(),
                             formField.getValues().get(0)));

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            httpclient.setRedirectStrategy(new LaxRedirectStrategy());
            
            Source source = new Source(EntityUtils.toString(entity));
            List <NameValuePair> nvps = new ArrayList <NameValuePair>();
            FormFields formFields = source.getFormFields();
            
            List<Element> forms = source.getAllElements(HTMLElementName.FORM);
            Assert.assertEquals("Only one form expected but got " + forms.size(), 1, forms.size());
            String postUrl = forms.get(0).getAttributeValue("action");
            
            Assert.assertNotNull("Form field 'wa' not found", formFields.get("wa"));
            Assert.assertNotNull("Form field 'wresult' not found", formFields.get("wresult"));
            
            for (FormField formField : formFields) {
                if (formField.getUserValueCount() != 0) {
                    nvps.add(new BasicNameValuePair(formField.getName(),
                             formField.getValues().get(0)));

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            httpclient.setRedirectStrategy(new LaxRedirectStrategy());
            
            Source source = new Source(EntityUtils.toString(entity));
            List <NameValuePair> nvps = new ArrayList <NameValuePair>();
            FormFields formFields = source.getFormFields();
            
            List<Element> forms = source.getAllElements(HTMLElementName.FORM);
            Assert.assertEquals("Only one form expected but got " + forms.size(), 1, forms.size());
            String postUrl = forms.get(0).getAttributeValue("action");
            
            Assert.assertNotNull("Form field 'wa' not found", formFields.get("wa"));
            Assert.assertNotNull("Form field 'wresult' not found", formFields.get("wresult"));
            
            for (FormField formField : formFields) {
                if (formField.getUserValueCount() != 0) {
                    nvps.add(new BasicNameValuePair(formField.getName(),
                             formField.getValues().get(0)));

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            httpclient.setRedirectStrategy(new LaxRedirectStrategy());
            
            Source source = new Source(EntityUtils.toString(entity));
            List <NameValuePair> nvps = new ArrayList <NameValuePair>();
            FormFields formFields = source.getFormFields();
            
            List<Element> forms = source.getAllElements(HTMLElementName.FORM);
            Assert.assertEquals("Only one form expected but got " + forms.size(), 1, forms.size());
            String postUrl = forms.get(0).getAttributeValue("action");
            
            Assert.assertNotNull("Form field 'wa' not found", formFields.get("wa"));
            Assert.assertNotNull("Form field 'wresult' not found", formFields.get("wresult"));
            
            for (FormField formField : formFields) {
                if (formField.getUserValueCount() != 0) {
                    nvps.add(new BasicNameValuePair(formField.getName(),
                             formField.getValues().get(0)));

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