Xm validation

Step 2: you can choose options: click "options for XML from XSD" to display the options.

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Online XSD Validator and Generator, xm validation.

Root element: if your XSD document contains more than one element, you can choose which one you want to generate an XML example.
Choice: for choice complextype, you can specify whether you want to generate only the first element or all elements (in this case, your XML will not conform to your XSD). XML schema can be used by developers to check XML document, for example to verify a SOAP response. If the XML document does not conform to the XML schema, the SOAP response is wrong.

Online XSD validator and generator

RГ©sultats

Features:

XML validator: it checks XML conforms to the definition described by a XML schema

XML to XSD: it generates an XSD from an XML file.

XSD to XML: it generates a sample XML from an XML schema.

Fill in the editors below and it will automatically check if your XML conforms to XSD.

If you want use the XML to XSD converter or the XSD to XML converter, please fill in only the desired editor and click the appropriate conversion button.

You can see the user guide to help you to use this online XSD tool. It is a beta version. Do not hesitate to report a bug or give feedback.

User guide

It is very simple to validate your xml with an XSD validation online:

Step 1: you must fill "XML" editor. You can drag and drop a XML file, click on "browse a XML file" or directly type in the editor.

Step 2: it is analogous to step 1 (except that it concerns the "XML schema" editor).

Step 3: as soon as the editors are filled, the tool checks if the XML conforms to the XSD. If errors are detected then they are displayed below the editors, else a success message is displayed.

Step 1: you must fill "XML schema" editor. You can drag and drop a XML file, click on "browse XML schema file" or directly type in the editor.

Step 2: you can choose options: click "options for XML from XSD" to display the options.
Root element: if your XSD document contains more than one element, you can choose which one you want to generate an XML example.
Choice: for choice complextype, you can specify whether you want to generate only the first element or all elements (in this case, your XML will not conform to your XSD).

Step 3: click on "XSD to XML".

Generate XSD from XML:

Step 1: you must fill "XML" editor. You can drag and drop a XML file, click on "browse XML file" or directly type in the editor.

Step 2: you can choose options: click "options for XSD from XML" to display the options.
Scope: if you select "global", the components (elements and types) will be added to the global scope, they will be schema children. Otherwise, the components will be nested within another component.

Step 3: click on "XML to XSD".

Online XSD tools

This online XML schema validator tool allows you to validate that your XML conforms to the specified schema.

If your document is not valid, the errors will be displayed, you will be able to make the necessary corrections.

This utility also allows you to generate XML examples from XSD. An XML example often makes it easier to understand the XML schema, because it is rarely very readable.

You can also generate XSD from an XML. This saves time and allows you to have a good basis.

All treatments are done locally directly in the browser, your documents are not sent to our server.

This tool uses xml.Js library. It is an emscripten port of libxml2's xmllint command.

What is XML schema?

The XML schema definition language (XSD) allows to define the structure and data types for XML documents. It contains a set of rules to which an XML document must conform in order to be valid. It is the current standard schema language, it is a recommendation of the world wide web consortium (W3C). It is an alternative to document type definition (DTD).

XSD defines:

The elements that can appear in a document

The attributes that can appear in a element

The child elements

The order of child elements

The data types for elements and attributes

The fixed values for elements and attributes

XML schema can be used by developers to check XML document, for example to verify a SOAP response. If the XML document does not conform to the XML schema, the SOAP response is wrong.

XML schema can be complicated to understand and use for a novice (especially for a non-developer), the spec is very long. The XML schema generators from xml can help to create a schema XML.

XML schema uses XML syntax, a XSD is a XML document! This avoids having to use another format. XSD example

XSD supports several primitive data types: boolean, string, decimal, float, double, date, datetime, base64binary, . Then, it is possible to create complex types.

XML editor

Oxygen XML editor
- Visual XML editors
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  - DITA editor
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  - Localization
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- Webhelp
- XSL / XSLT
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- XML schema
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- WSDL
  - WSDL editor
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- Ant
  - Ant editor
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- Xquery
  - Xquery editor
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- JSON
  - JSON editor
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- HTML
  - HTML editor
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  - Office open XML
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  - Advanced searches
  - Miscellaneous
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- Feature matrix

XML well-formedness check

A "well-formed" XML document means that it has a correct XML syntax. The check well-formedness action checks that your document conforms to the XML syntax rules.

Validate documents

A valid XML document is "well-formed", and also conforms to the rules of a document type definition (DTD) , XML schema, or other type of schema that defines the structure of an XML document.

When creating XML documents, errors can be introduced. Working with large projects or a vast number of files increases the probability that errors will occur. Identifying and resolving errors in your project can be time consuming and frustrating. Fortunately, oxygen provides functions that make error identification fast and easy.

Validate XML documents against W3C XML schemas

Oxygen integrates the latest version of the xerces-J XML parser to validate documents against XML schemas. Xerces is widely considered the best open-source XML parser and is used in many enterprise servers.

Validation scenarios

The oxygen validation scenarios are very powerful and solve numerous important issues when working with XML markup and XML-related technologies. They also allow you to work with modules and perform multiple validations with one action.

By default, the validation of a document is done by using a processor (XML parser, XSLT transformer, xquery engine, etc.) to analyze the current file. The validation scenario allows you to specify a set of files to validate, the processor to use for each file, and whether or not to perform continuous validation. When working with a module, you can perform the validation on the master file (the file that references that module) and you can also perform multiple validations on various files or with various processors.

Working with modules

Suppose that you are working with a large XML document that you decide to split into multiple files and use external entities to merge those files into a master document. If you edit one of those files then you would want to check that the master document is valid. Oxygen validation scenarios allow you to validate the master document instead of only validating the current file. Thus, the current file is validated in the context of its master file.

XSLT stylesheets, as is the case with many other XML-related technologies (xquery, relax NG, etc.), can be invalid by themselves, yet valid in the context of being imported or included in other files. For instance, you can have an XSLT stylesheet that makes a reference to a named template or variable that is not defined in the current file, but it is defined in the master file that includes the XSLT stylesheet. In this case, if you validate the XSLT module by itself, you will get an error that no template or variable exists with that name. However, you can use custom validation scenarios in oxygen to validate the master XSLT stylesheet that includes this module and there will be no such error.

Multiple validations in one action

Some XML technologies are complicated, as is the case with XML schema or XSLT processors. When you edit documents that are intended to be public or should work no matter what engine is used, it is best to check them against all engines they will be used with. The oxygen validation scenarios allow you to specify multiple validations to be performed and which engine to use for each validation. For example, when editing a schema, there are 6 XML schema processors that oxygen supports and others can also be added as external processors. Oxygen validates your schema against all of the processors in one action. Therefore, you can easily check to see that your schema will work no matter what processor is used.

Suppose that you have a set of XML instance documents and you want to change their schema while ensuring that they are still valid. The oxygen validation scenarios allow you to configure multiple validations (on each instance document and on the schema file) and is performed in a single action. This allows you to make sure that the schema is valid and your instance documents are valid against the updated schema.

Working with modules and multiple validation

When you work with modules, it is also common to re-use them in various contexts (master files). Oxygen allows you to validate a module in all the contexts from which it is used since the validation scenarios allow you to set multiple files for validation. Therefore, you can specify all the master files that use the module, and in a single action, check that the module is valid in all its contexts.

Continuous validation

Oxygen can be configured to continuously report validation errors in an edited document as you modify it. By selecting the enable automatic validation option, validation errors will automatically be displayed as you type, after a configurable delay.

At the bottom of the editing area, a message is displayed that describes the error that is closest to the cursor position.

Error markers and overview ruler

The location of errors, including those that are generated by continuous validation, are marked in-place with an underline. The error locations are also marked in red on the right side of the editing view, in an overview ruler that allows you to quickly navigate between the errors.

Multiple external validation engines

Oxygen has built-in support for various external validation engines, including xerces, LIBXML, XSV, saxon SA, MSXML4.0, MSXML .NET and SQC.

In addition to these engines that are pre-configured, you can also add your own custom validation engine.

Schematron support

Oxygen can validate XML documents using schematron schemas, XML schemas, or relax NG schemas that contain embedded schematron rules. Editing and validation support is also included for schematron schemas.

For validation, oxygen uses the skeleton XSLT processor that is schematron 1.5 compliant.

For schemas that define various validation phases, oxygen automatically shows a dialog box where the validation phase can be selected.

Oxygen also includes support for schematron quick fixes and ISO schematron.

Schematron quick fixes

Schematron quick fixes (SQF) help you resolve errors that appear in XML documents that are validated against schematron schemas by offering you solution proposals. The schematron quick fixes are an extension of the schematron language and they allow you to define fixes for schematron error messages. You can customize schematron quick fixes by editing them directly in a schematron file or in a separate file.

Editing ISO schematron schemas

Oxygen has a schematron editor that analyzes the namespace and automatically detects if the edited schematron schema is ISO schematron. It offers continuous validation as well as a content completion assistant with suggestions for the ISO schematron elements, attributes, and values.

Editing support for embedded ISO schematron rules in XML schema

When editing XML schemas, oxygen offers proposals, using the content completion assistant, inside xs:annotation and xs:appinfo ISO schematron. This makes schematron embedded rules easier to edit.

Validating XML documents against ISO schematron

Oxygen supports validation against ISO schematron schemas, including validation on request, continuous validation, and batch validation.

Validating XML document against ISO schematron embedded rules

ISO schematron rules can be embedded in other schemas. Oxygen offers validation against ISO schematron rules embedded in relax NG schemas or XML schema.

Support for abstract patterns and included ISO schematron schemas

Oxygen also supports ISO schematron schemas that contain abstract patterns or references to other ISO schematron files through sch:include.

Schematron diagnostics and reports

The diagnostics messages reported by schematron schema are displayed along with other validation errors. Schematron report messages are displayed as warnings.

Option for using saxon EE (schema aware) for schematron

Xpath 2.0 checks, used in an ISO schematron schema or schematron 1.5 schema, can optionally be executed with saxon EE, instead of saxon B, in order to access the schema-aware features of saxon EE. The saxon EE processor is an extension of the saxon B processor and is bundled with the oxygen software packages.

XML catalog support

An XML catalog defines mappings between schema locations and local copies of the schema documents. For example, default docbook documents use the dtds that are located on the oasis website. This means that each validation will take time since the dtds need to be downloaded each time. To speed up this process, oxygen uses several catalogs for its default frameworks that are set up automatically the first time you run the application.

The catalog list can be managed from the XML catalog preferences page, as seen below.

Validate with XML schema while allowing external entities

The lack of support for external entities is a known weakness of XML schema. There are documents that reference a schema but also contain a DTD declaration that allows external entities to be defined. Oxygen allows XML schema and external entities to co-exist since you can configure the validation to be performed against the specified XML schema even if a DTD is also specified.

Validate XML documents against dtds

You can use oxygen to validate an XML document instance against a specified DTD.

Validate XML documents against relax NG schema

With oxygen, you can easily validate documents against relax NG (in both XML syntax and compact syntax) and namespace routing language (NRL) schemas.

Extended batch validation

Multiple files that are currently selected in the project view can be validated against a schema file with a single action from the toolbar or contextual menu. The supported schemas include XML schema, relax NG, NVDL, schematron, or XML schema/relax NG schema with embedded schematron rules. This makes it easy to group the files in your project and validate them as a batch.

The following image shows the dialog box for choosing a validation schema.

Error reporting and error tracking

Errors are reported in an informational pane, indicating the severity of the problem, location information (line number, file path), and a descriptive message. You can track document errors by simply double-clicking the error in the errors pane. The editor opens the corresponding file and jump to and highlights the location of the error.

Control the XML parser features

Oxygen allows you to control some of the parser settings used for validation. The XML parser features can be configured from the XML parser preferences page.

Wizard for schema association

You can use the associate schema action to open a wizard that allows you to associate a schema with a document.

This modifies the document so that it contains the declared schema location.

Validating with XML schema

This section looks at the process of XML schema validation. Although a full treatment of XML schema is beyond the scope of this tutorial, this section shows you the steps you take to validate an XML document using an XML schema definition. (to learn more about XML schema, you can review the online tutorial, XML schema part 0: primer. At the end of this section, you will also learn how to use an XML schema definition to validate a document that contains elements from multiple namespaces.

Overview of the validation process

To be notified of validation errors in an XML document, the following must be true:

The factory must configured, and the appropriate error handler set.

The document must be associated with at least one schema, and possibly more.

Configuring the `documentbuilder` factory

It is helpful to start by defining the constants you will use when configuring the factory. These are the same constants you define when using XML schema for SAX parsing, and they are declared at the beginning of the domecho example program.

Next, you configure documentbuilderfactory to generate a namespace-aware, validating parser that uses XML schema. This is done by calling the setvalidating method on the documentbuilderfactory instance dbf, that was created in instantiate the factory.

Because JAXP-compliant parsers are not namespace-aware by default, it is necessary to set the property for schema validation to work. You also set a factory attribute to specify the parser language to use. (for SAX parsing, on the other hand, you set a property on the parser generated by the factory).

Associating a document with a schema

Now that the program is ready to validate with an XML schema definition, it is necessary only to ensure that the XML document is associated with (at least) one. There are two ways to do that:

With a schema declaration in the XML document

By specifying the schema(s) to use in the application

Note - when the application specifies the schema(s) to use, it overrides any schema declarations in the document.

To specify the schema definition in the document, you would create XML like this:

The first attribute defines the XML namespace (xmlns) prefix, xsi, which stands for "XML schema instance." the second line specifies the schema to use for elements in the document that do not have a namespace prefix-that is, for the elements you typically define in any simple, uncomplicated XML document. (you will see how to deal with multiple namespaces in the next section.)

You can also specify the schema file in the application, which is the case for domecho.

Here, too, there are mechanisms at your disposal that will let you specify multiple schemas. We will take a look at those next.

Validating with multiple namespaces

Namespaces let you combine elements that serve different purposes in the same document without having to worry about overlapping names.

Note - the material discussed in this section also applies to validating when using the SAX parser. You are seeing it here, because at this point you have learned enough about namespaces for the discussion to make sense.

To contrive an example, consider an XML data set that keeps track of personnel data. The data set may include information from a tax declaration form as well as information from the employee's hiring form, with both elements named form in their respective schemas.

If a prefix is defined for the tax namespace, and another prefix defined for the hiring namespace, then the personnel data could include segments like the following.

The contents of the tax:form element would obviously be different from the contents of the hiring:form element and would have to be validated differently.

Note, too, that in this example there is a default namespace that the unqualified element names employee and name belong to. For the document to be properly validated, the schema for that namespace must be declared, as well as the schemas for the tax and hiring namespaces.

Note - the default namespace is actually a specific namespace. It is defined as the "namespace that has no name." so you cannot simply use one namespace as your default this week, and another namespace as the default later. This "unnamed namespace" (or "null namespace") is like the number zero. It does not have any value to speak of (no name), but it is still precisely defined. So a namespace that does have a name can never be used as the default namespace.

When parsed, each element in the data set will be validated against the appropriate schema, as long as those schemas have been declared. Again, the schemas can be declared either as part of the XML data set or in the program. (it is also possible to mix the declarations. In general, though, it is a good idea to keep all the declarations together in one place.)

Declaring the schemas in the XML data set

To declare the schemas to use for the preceding example in the data set, the XML code would look something like the following.

The nonamespaceschemalocation declaration is something you have seen before, as are the last two entries, which define the namespace prefixes tax and hiring. What is new is the entry in the middle, which defines the locations of the schemas to use for each namespace referenced in the document.

The xsi:schemalocation declaration consists of entry pairs, where the first entry in each pair is a fully qualified URI that specifies the namespace, and the second entry contains a full path or a relative path to the schema definition. In general, fully qualified paths are recommended. In that way, only one copy of the schema will tend to exist.

Note that you cannot use the namespace prefixes when defining the schema locations. The xsi:schemalocation declaration understands only namespace names and not prefixes.

Declaring the schemas in the application

To declare the equivalent schemas in the application, the code would look something like the following.

Here, the array of strings that points to the schema definitions (.Xsd files) is passed as the argument to the factory.Setattribute method. Note the differences from when you were declaring the schemas to use as part of the XML data set.

There is no special declaration for the default (unnamed) schema.

You do not specify the namespace name. Instead, you only give pointers to the .Xsd files.

To make the namespace assignments, the parser reads the .Xsd files, and finds in them the name of the target namespace they apply to. Because the files are specified with uris, the parser can use an entityresolver (if one has been defined) to find a local copy of the schema.

If the schema definition does not define a target namespace, then it applies to the default (unnamed, or null) namespace. So, in our example, you would expect to see these target namespace declarations in the schemas:

A string that points to the URI of the schema

An inputstream with the contents of the schema

A SAX inputsource

A file

An array of objects, each of which is one of the types defined here

An array of objects can be used only when the schema language has the ability to assemble a schema at runtime. Also, when an array of objects is passed it is illegal to have two schemas that share the same namespace.

Running the `domecho` sample with schema validation

To run the domecho sample with schema validation, follow the steps below.

Navigate to the samples directory. % cd install-dir/jaxp-1_4_2-release-date/samples.

Compile the example class, using the class path you have just set. % javac dom/*

Run the domecho program on an XML file, specifying schema validation.

Choose one of the XML files in the data directory and run the domecho program on it with the -xsd option specified. Here, we have chosen to run the program on the file personal-schema.Xml.

% java dom/domecho -xsd data/personal-schema.Xml

As you saw in configuring the factory, the -xsd option tells domecho to perform validation against the XML schema that is defined in the personal-schema.Xml file. In this case, the schema is the file personal.Xsd, which is also located in the sample/data directory.

Open personal-schema.Xml in a text editor and delete the schema declaration.

Remove the following from the opening

Do not forget to save the file.

Run domecho again, specifying the -xsd option once more. % java dom/domecho -xsd data/personal-schema.Xml

This time, you will see a stream of errors.

Run domecho one more time, this time specifying the -xsdss option and specifying the schema definition file.

As you saw in configuring the factory, the -xsdss option tells domecho to perform validation against an XML schema definition that is specified when the program is run. Once again, use the file personal.Xsd.

% java dom/domecho -xsdss data/personal.Xsd data/personal-schema.Xml