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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* accompanied this code).
*
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/*
* Copyright (c) 2009, 2013, by Oracle Corporation. All Rights Reserved.
*/
package javax.xml.stream;
import com.sun.xml.internal.stream.XMLInputFactoryImpl;
import javax.xml.stream.util.XMLEventAllocator;
import javax.xml.transform.Source;
/**
* Defines an abstract implementation of a factory for getting streams.
*
* The following table defines the standard properties of this specification.
* Each property varies in the level of support required by each implementation.
* The level of support required is described in the 'Required' column.
*
* <table border="2" rules="all" cellpadding="4">
* <thead>
* <tr>
* <th align="center" colspan="5">
* Configuration parameters
* </th>
* </tr>
* </thead>
* <tbody>
* <tr>
* <th>Property Name</th>
* <th>Behavior</th>
* <th>Return type</th>
* <th>Default Value</th>
* <th>Required</th>
* </tr>
* <tr><td>javax.xml.stream.isValidating</td><td>Turns on/off implementation specific DTD validation</td><td>Boolean</td><td>False</td><td>No</td></tr>
* <tr><td>javax.xml.stream.isNamespaceAware</td><td>Turns on/off namespace processing for XML 1.0 support</td><td>Boolean</td><td>True</td><td>True (required) / False (optional)</td></tr>
* <tr><td>javax.xml.stream.isCoalescing</td><td>Requires the processor to coalesce adjacent character data</td><td>Boolean</td><td>False</td><td>Yes</td></tr>
* <tr><td>javax.xml.stream.isReplacingEntityReferences</td><td>replace internal entity references with their replacement text and report them as characters</td><td>Boolean</td><td>True</td><td>Yes</td></tr>
*<tr><td>javax.xml.stream.isSupportingExternalEntities</td><td>Resolve external parsed entities</td><td>Boolean</td><td>Unspecified</td><td>Yes</td></tr>
*<tr><td>javax.xml.stream.supportDTD</td><td>Use this property to request processors that do not support DTDs</td><td>Boolean</td><td>True</td><td>Yes</td></tr>
*<tr><td>javax.xml.stream.reporter</td><td>sets/gets the impl of the XMLReporter </td><td>javax.xml.stream.XMLReporter</td><td>Null</td><td>Yes</td></tr>
*<tr><td>javax.xml.stream.resolver</td><td>sets/gets the impl of the XMLResolver interface</td><td>javax.xml.stream.XMLResolver</td><td>Null</td><td>Yes</td></tr>
*<tr><td>javax.xml.stream.allocator</td><td>sets/gets the impl of the XMLEventAllocator interface</td><td>javax.xml.stream.util.XMLEventAllocator</td><td>Null</td><td>Yes</td></tr>
* </tbody>
* </table>
*
*
* @version 1.2
* @author Copyright (c) 2009, 2015 by Oracle Corporation. All Rights Reserved.
* @see XMLOutputFactory
* @see XMLEventReader
* @see XMLStreamReader
* @see EventFilter
* @see XMLReporter
* @see XMLResolver
* @see javax.xml.stream.util.XMLEventAllocator
* @since 1.6
*/
public abstract class XMLInputFactory {
/**
* The property used to turn on/off namespace support,
* this is to support XML 1.0 documents,
* only the true setting must be supported
*/
public static final String IS_NAMESPACE_AWARE=
"javax.xml.stream.isNamespaceAware";
/**
* The property used to turn on/off implementation specific validation
*/
public static final String IS_VALIDATING=
"javax.xml.stream.isValidating";
/**
* The property that requires the parser to coalesce adjacent character data sections
*/
public static final String IS_COALESCING=
"javax.xml.stream.isCoalescing";
/**
* Requires the parser to replace internal
* entity references with their replacement
* text and report them as characters
*/
public static final String IS_REPLACING_ENTITY_REFERENCES=
"javax.xml.stream.isReplacingEntityReferences";
/**
* The property that requires the parser to resolve external parsed entities
*/
public static final String IS_SUPPORTING_EXTERNAL_ENTITIES=
"javax.xml.stream.isSupportingExternalEntities";
/**
* The property that requires the parser to support DTDs
*/
public static final String SUPPORT_DTD=
"javax.xml.stream.supportDTD";
/**
* The property used to
* set/get the implementation of the XMLReporter interface
*/
public static final String REPORTER=
"javax.xml.stream.reporter";
/**
* The property used to set/get the implementation of the XMLResolver
*/
public static final String RESOLVER=
"javax.xml.stream.resolver";
/**
* The property used to set/get the implementation of the allocator
*/
public static final String ALLOCATOR=
"javax.xml.stream.allocator";
static final String DEFAULIMPL = "com.sun.xml.internal.stream.XMLInputFactoryImpl";
protected XMLInputFactory(){}
/**
* Creates a new instance of the {@code XMLInputFactory} builtin
* system-default implementation.
*
* @return A new instance of the {@code XMLInputFactory} builtin
* system-default implementation.
*
* @since 9
*/
public static XMLInputFactory newDefaultFactory() {
return new XMLInputFactoryImpl();
}
/**
* Creates a new instance of the factory in exactly the same manner as the
* {@link #newFactory()} method.
* @throws FactoryConfigurationError if an instance of this factory cannot be loaded
*/
public static XMLInputFactory newInstance()
throws FactoryConfigurationError
{
return FactoryFinder.find(XMLInputFactory.class, DEFAULIMPL);
}
/**
* Create a new instance of the factory.
* <p>
* This static method creates a new factory instance.
* This method uses the following ordered lookup procedure to determine
* the XMLInputFactory implementation class to load:
*
* <ul>
* <li>
* <p>Use the javax.xml.stream.XMLInputFactory system property.
* </li>
* <li>
* <p>Use the configuration file "stax.properties". The file is in standard
* {@link java.util.Properties} format and typically located in the
* {@code conf} directory of the Java installation. It contains the fully qualified
* name of the implementation class with the key being the system property
* defined above.
*
* <p>The stax.properties file is read only once by the implementation
* and its values are then cached for future use. If the file does not exist
* when the first attempt is made to read from it, no further attempts are
* made to check for its existence. It is not possible to change the value
* of any property in stax.properties after it has been read for the first time.
*
* <p>
* Use the jaxp configuration file "jaxp.properties". The file is in the same
* format as stax.properties and will only be read if stax.properties does
* not exist.
* </li>
* <li>
* <p>Use the service-provider loading facility, defined by the
* {@link java.util.ServiceLoader} class, to attempt to locate and load an
* implementation of the service using the {@linkplain
* java.util.ServiceLoader#load(java.lang.Class) default loading mechanism}:
* the service-provider loading facility will use the {@linkplain
* java.lang.Thread#getContextClassLoader() current thread's context class loader}
* to attempt to load the service. If the context class
* loader is null, the {@linkplain
* ClassLoader#getSystemClassLoader() system class loader} will be used.
* </li>
* <li>
* <p>Otherwise, the {@linkplain #newDefaultFactory() system-default}
* implementation is returned.
* </li>
* </ul>
* <p>
* Once an application has obtained a reference to a XMLInputFactory it
* can use the factory to configure and obtain stream instances.
* <p>
* Note that this is a new method that replaces the deprecated newInstance() method.
* No changes in behavior are defined by this replacement method relative to
* the deprecated method.
*
* @throws FactoryConfigurationError in case of {@linkplain
* java.util.ServiceConfigurationError service configuration error} or if
* the implementation is not available or cannot be instantiated.
*/
public static XMLInputFactory newFactory()
throws FactoryConfigurationError
{
return FactoryFinder.find(XMLInputFactory.class, DEFAULIMPL);
}
/**
* Create a new instance of the factory
*
* @param factoryId Name of the factory to find, same as
* a property name
* @param classLoader classLoader to use
* @return the factory implementation
* @throws FactoryConfigurationError if an instance of this factory cannot be loaded
*
* @deprecated This method has been deprecated to maintain API consistency.
* All newInstance methods have been replaced with corresponding
* newFactory methods. The replacement {@link
* #newFactory(java.lang.String, java.lang.ClassLoader)} method
* defines no changes in behavior.
*/
public static XMLInputFactory newInstance(String factoryId,
ClassLoader classLoader)
throws FactoryConfigurationError {
//do not fallback if given classloader can't find the class, throw exception
return FactoryFinder.find(XMLInputFactory.class, factoryId, classLoader, null);
}
/**
* Create a new instance of the factory.
* If the classLoader argument is null, then the ContextClassLoader is used.
* <p>
* This method uses the following ordered lookup procedure to determine
* the XMLInputFactory implementation class to load:
* <ul>
* <li>
* <p>
* Use the value of the system property identified by {@code factoryId}.
* </li>
* <li>
* <p>
* Use the configuration file "stax.properties". The file is in standard
* {@link java.util.Properties} format and typically located in the
* {@code conf} directory of the Java installation. It contains the fully qualified
* name of the implementation class with the key being the system property
* defined above.
*
* <p>
* The stax.properties file is read only once by the implementation
* and its values are then cached for future use. If the file does not exist
* when the first attempt is made to read from it, no further attempts are
* made to check for its existence. It is not possible to change the value
* of any property in stax.properties after it has been read for the first time.
*
* <p>
* Use the jaxp configuration file "jaxp.properties". The file is in the same
* format as stax.properties and will only be read if stax.properties does
* not exist.
* </li>
* <li>
* <p>
* If {@code factoryId} is "javax.xml.stream.XMLInputFactory",
* use the service-provider loading facility, defined by the
* {@link java.util.ServiceLoader} class, to attempt to {@linkplain
* java.util.ServiceLoader#load(java.lang.Class, java.lang.ClassLoader) locate and load}
* an implementation of the service using the specified {@code ClassLoader}.
* If {@code classLoader} is null, the {@linkplain
* java.util.ServiceLoader#load(java.lang.Class) default loading mechanism} will apply:
* That is, the service-provider loading facility will use the {@linkplain
* java.lang.Thread#getContextClassLoader() current thread's context class loader}
* to attempt to load the service. If the context class
* loader is null, the {@linkplain
* ClassLoader#getSystemClassLoader() system class loader} will be used.
* </li>
* <li>
* <p>
* Otherwise, throws a {@link FactoryConfigurationError}.
* </li>
* </ul>
*
* <p>
* Note that this is a new method that replaces the deprecated
* {@link #newInstance(java.lang.String, java.lang.ClassLoader)
* newInstance(String factoryId, ClassLoader classLoader)} method.
* No changes in behavior are defined by this replacement method relative
* to the deprecated method.
*
*
* @apiNote The parameter factoryId defined here is inconsistent with that
* of other JAXP factories where the first parameter is fully qualified
* factory class name that provides implementation of the factory.
*
* @param factoryId Name of the factory to find, same as
* a property name
* @param classLoader classLoader to use
* @return the factory implementation
* @throws FactoryConfigurationError in case of {@linkplain
* java.util.ServiceConfigurationError service configuration error} or if
* the implementation is not available or cannot be instantiated.
* @throws FactoryConfigurationError if an instance of this factory cannot be loaded
*/
public static XMLInputFactory newFactory(String factoryId,
ClassLoader classLoader)
throws FactoryConfigurationError {
//do not fallback if given classloader can't find the class, throw exception
return FactoryFinder.find(XMLInputFactory.class, factoryId, classLoader, null);
}
/**
* Create a new XMLStreamReader from a reader
* @param reader the XML data to read from
* @throws XMLStreamException
*/
public abstract XMLStreamReader createXMLStreamReader(java.io.Reader reader)
throws XMLStreamException;
/**
* Create a new XMLStreamReader from a JAXP source. This method is optional.
* @param source the source to read from
* @throws UnsupportedOperationException if this method is not
* supported by this XMLInputFactory
* @throws XMLStreamException
*/
public abstract XMLStreamReader createXMLStreamReader(Source source)
throws XMLStreamException;
/**
* Create a new XMLStreamReader from a java.io.InputStream
* @param stream the InputStream to read from
* @throws XMLStreamException
*/
public abstract XMLStreamReader createXMLStreamReader(java.io.InputStream stream)
throws XMLStreamException;
/**
* Create a new XMLStreamReader from a java.io.InputStream
* @param stream the InputStream to read from
* @param encoding the character encoding of the stream
* @throws XMLStreamException
*/
public abstract XMLStreamReader createXMLStreamReader(java.io.InputStream stream, String encoding)
throws XMLStreamException;
/**
* Create a new XMLStreamReader from a java.io.InputStream
* @param systemId the system ID of the stream
* @param stream the InputStream to read from
*/
public abstract XMLStreamReader createXMLStreamReader(String systemId, java.io.InputStream stream)
throws XMLStreamException;
/**
* Create a new XMLStreamReader from a java.io.InputStream
* @param systemId the system ID of the stream
* @param reader the InputStream to read from
*/
public abstract XMLStreamReader createXMLStreamReader(String systemId, java.io.Reader reader)
throws XMLStreamException;
/**
* Create a new XMLEventReader from a reader
* @param reader the XML data to read from
* @throws XMLStreamException
*/
public abstract XMLEventReader createXMLEventReader(java.io.Reader reader)
throws XMLStreamException;
/**
* Create a new XMLEventReader from a reader
* @param systemId the system ID of the input
* @param reader the XML data to read from
* @throws XMLStreamException
*/
public abstract XMLEventReader createXMLEventReader(String systemId, java.io.Reader reader)
throws XMLStreamException;
/**
* Create a new XMLEventReader from an XMLStreamReader. After being used
* to construct the XMLEventReader instance returned from this method
* the XMLStreamReader must not be used.
* @param reader the XMLStreamReader to read from (may not be modified)
* @return a new XMLEventReader
* @throws XMLStreamException
*/
public abstract XMLEventReader createXMLEventReader(XMLStreamReader reader)
throws XMLStreamException;
/**
* Create a new XMLEventReader from a JAXP source.
* Support of this method is optional.
* @param source the source to read from
* @throws UnsupportedOperationException if this method is not
* supported by this XMLInputFactory
*/
public abstract XMLEventReader createXMLEventReader(Source source)
throws XMLStreamException;
/**
* Create a new XMLEventReader from a java.io.InputStream
* @param stream the InputStream to read from
* @throws XMLStreamException
*/
public abstract XMLEventReader createXMLEventReader(java.io.InputStream stream)
throws XMLStreamException;
/**
* Create a new XMLEventReader from a java.io.InputStream
* @param stream the InputStream to read from
* @param encoding the character encoding of the stream
* @throws XMLStreamException
*/
public abstract XMLEventReader createXMLEventReader(java.io.InputStream stream, String encoding)
throws XMLStreamException;
/**
* Create a new XMLEventReader from a java.io.InputStream
* @param systemId the system ID of the stream
* @param stream the InputStream to read from
* @throws XMLStreamException
*/
public abstract XMLEventReader createXMLEventReader(String systemId, java.io.InputStream stream)
throws XMLStreamException;
/**
* Create a filtered reader that wraps the filter around the reader
* @param reader the reader to filter
* @param filter the filter to apply to the reader
* @throws XMLStreamException
*/
public abstract XMLStreamReader createFilteredReader(XMLStreamReader reader, StreamFilter filter)
throws XMLStreamException;
/**
* Create a filtered event reader that wraps the filter around the event reader
* @param reader the event reader to wrap
* @param filter the filter to apply to the event reader
* @throws XMLStreamException
*/
public abstract XMLEventReader createFilteredReader(XMLEventReader reader, EventFilter filter)
throws XMLStreamException;
/**
* The resolver that will be set on any XMLStreamReader or XMLEventReader created
* by this factory instance.
*/
public abstract XMLResolver getXMLResolver();
/**
* The resolver that will be set on any XMLStreamReader or XMLEventReader created
* by this factory instance.
* @param resolver the resolver to use to resolve references
*/
public abstract void setXMLResolver(XMLResolver resolver);
/**
* The reporter that will be set on any XMLStreamReader or XMLEventReader created
* by this factory instance.
*/
public abstract XMLReporter getXMLReporter();
/**
* The reporter that will be set on any XMLStreamReader or XMLEventReader created
* by this factory instance.
* @param reporter the resolver to use to report non fatal errors
*/
public abstract void setXMLReporter(XMLReporter reporter);
/**
* Allows the user to set specific feature/property on the underlying
* implementation. The underlying implementation is not required to support
* every setting of every property in the specification and may use
* IllegalArgumentException to signal that an unsupported property may not be
* set with the specified value.
* <p>
* All implementations that implement JAXP 1.5 or newer are required to
* support the {@link javax.xml.XMLConstants#ACCESS_EXTERNAL_DTD} property.
* <ul>
* <li>
* <p>
* Access to external DTDs, external Entity References is restricted to the
* protocols specified by the property. If access is denied during parsing
* due to the restriction of this property, {@link javax.xml.stream.XMLStreamException}
* will be thrown by the {@link javax.xml.stream.XMLStreamReader#next()} or
* {@link javax.xml.stream.XMLEventReader#nextEvent()} method.
*
* </li>
* </ul>
* @param name The name of the property (may not be null)
* @param value The value of the property
* @throws java.lang.IllegalArgumentException if the property is not supported
*/
public abstract void setProperty(java.lang.String name, Object value)
throws java.lang.IllegalArgumentException;
/**
* Get the value of a feature/property from the underlying implementation
* @param name The name of the property (may not be null)
* @return The value of the property
* @throws IllegalArgumentException if the property is not supported
*/
public abstract Object getProperty(java.lang.String name)
throws java.lang.IllegalArgumentException;
/**
* Query the set of properties that this factory supports.
*
* @param name The name of the property (may not be null)
* @return true if the property is supported and false otherwise
*/
public abstract boolean isPropertySupported(String name);
/**
* Set a user defined event allocator for events
* @param allocator the user defined allocator
*/
public abstract void setEventAllocator(XMLEventAllocator allocator);
/**
* Gets the allocator used by streams created with this factory
*/
public abstract XMLEventAllocator getEventAllocator();
}