com.ctc.wstx.api.WstxInputProperties Maven / Gradle / Ivy
package com.ctc.wstx.api;
import javax.xml.stream.XMLResolver;
import org.codehaus.stax2.XMLInputFactory2;
/**
* Class that contains constant for property names used to configure
* cursor and event readers produced by Wstx implementation of
* {@link javax.xml.stream.XMLInputFactory}.
*
* TODO:
*
* - CHECK_CHAR_VALIDITY (separate for white spaces?)
* - CATALOG_RESOLVER? (or at least, ENABLE_CATALOGS)
*/
public final class WstxInputProperties
{
/**
* Constants used when no DTD handling is done, and we do not know the
* 'real' type of an attribute. Seems like CDATA is the safe choice.
*/
public final static String UNKNOWN_ATTR_TYPE = "CDATA";
/*
///////////////////////////////////////////////////////
// Simple on/off settings:
///////////////////////////////////////////////////////
*/
// // // Normalization:
/**
* Feature that controls whether linefeeds are normalized into
* canonical linefeed as mandated by xml specification.
*
* Note that disabling this property (from its default enabled
* state) will result in non-conforming XML processing. It may
* be useful for use cases where changes to input content should
* be minimized.
*
* Note: this property was initially removed from Woodstox 4.0,
* but was reintroduced in 4.0.8 due to user request.
*/
public final static String P_NORMALIZE_LFS = "com.ctc.wstx.normalizeLFs";
//public final static String P_NORMALIZE_ATTR_VALUES = "com.ctc.wstx.normalizeAttrValues";
// // // XML character validation:
/**
* Whether readers will verify that characters in text content are fully
* valid XML characters (not just Unicode). If true, will check
* that they are valid (including white space); if false, will not
* check.
*
* Turning this option off may improve parsing performance; leaving
* it on guarantees compatibility with XML 1.0 specs regarding character
* validity rules.
*/
public final static String P_VALIDATE_TEXT_CHARS = "com.ctc.wstx.validateTextChars";
// // // Caching:
/**
* Whether readers will try to cache parsed external DTD subsets or not.
*/
public final static String P_CACHE_DTDS = "com.ctc.wstx.cacheDTDs";
/**
* Whether reader is to cache DTDs (when caching enabled) based on public id
* or not: if not, system id will be primarily used. Although theoretically
* public IDs should be unique, and should be good caching keys, sometimes
* broken documents use 'wrong' public IDs, and such by default caching keys
* are based on system id only.
*/
public final static String P_CACHE_DTDS_BY_PUBLIC_ID = "com.ctc.wstx.cacheDTDsByPublicId";
// // // Enabling/disabling lazy/incomplete parsing
/**
* Whether stream readers are allowed to do lazy parsing, meaning
* to parse minimal part of the event when
* {@link javax.xml.stream.XMLStreamReader#next} is called, and only parse the rest
* as needed (or skip remainder of no extra information is needed).
* Alternative to lazy parsing is called "eager parsing", and is
* what most xml parsers use by default.
*
* Enabling lazy parsing can improve performance for tasks where
* number of textual events are skipped. The downside is that
* not all well-formedness problems are reported when
* {@link javax.xml.stream.XMLStreamReader#next} is called, but only when the
* rest of event are read or skipped.
*
* Default value for Woodstox is such that lazy parsing is
* enabled.
*
* @deprecated As of Woodstox 4.0 use
* {@link XMLInputFactory2#P_LAZY_PARSING} instead (from
* Stax2 extension API, v3.0)
*/
public final static String P_LAZY_PARSING = XMLInputFactory2.P_LAZY_PARSING;
// // // API behavior (for backwards compatibility)
/**
* This read-only property indicates whether null is returned for default name space prefix;
* Boolean.TRUE indicates it does, Boolean.FALSE that it does not.
*
* Default value for 4.1 is 'false'; this will most likely change for 5.0 since
* Stax API actually specifies null to be used.
*
* @since 4.1.2
*/
public final static String P_RETURN_NULL_FOR_DEFAULT_NAMESPACE = "com.ctc.wstx.returnNullForDefaultNamespace";
// // // Enabling/disabling support for dtd++
/**
* Whether the Reader will recognized DTD++ extensions when parsing
* DTD subsets.
*
* Note: not implemented by Woodstox.
*
* @deprecated Never implement, let's phase this out (deprecated in 4.2)
*/
public final static String P_SUPPORT_DTDPP = "com.ctc.wstx.supportDTDPP";
/**
* Whether the Reader will treat character references as entities while parsing
* XML documents.
*/
public static final String P_TREAT_CHAR_REFS_AS_ENTS = "com.ctc.wstx.treatCharRefsAsEnts";
// // // Enabling alternate mode for parsing XML fragments instead
// // // of full documents
// Automatic W3C Schema support?
/*
* Whether W3C Schema hint attributes are recognized within document,
* and used to locate Schema to use for validation.
*/
//public final static String P_AUTOMATIC_W3C_SCHEMA = 0x00100000;
/*
///////////////////////////////////////////////////////
// More complex settings
///////////////////////////////////////////////////////
*/
// // // Buffer sizes;
/**
* Size of input buffer (in chars), to use for reading XML content
* from input stream/reader.
*/
public final static String P_INPUT_BUFFER_LENGTH = "com.ctc.wstx.inputBufferLength";
// // // Constraints on sizes of text segments parsed:
/**
* Property to specify shortest non-complete text segment (part of
* CDATA section or text content) that parser is allowed to return,
* if not required to coalesce text.
*/
public final static String P_MIN_TEXT_SEGMENT = "com.ctc.wstx.minTextSegment";
// // // Other size constraints (4.2+)
/**
* Maximum number of attributes allowed for single XML element.
* @since 4.2
*/
public final static String P_MAX_ATTRIBUTES_PER_ELEMENT = "com.ctc.wstx.maxAttributesPerElement";
/**
* Maximum length of of individual attribute values (in characters)
* @since 4.2
*/
public final static String P_MAX_ATTRIBUTE_SIZE = "com.ctc.wstx.maxAttributeSize";
/**
* Maximum number of child elements for any given element.
* @since 4.2
*/
public final static String P_MAX_CHILDREN_PER_ELEMENT = "com.ctc.wstx.maxChildrenPerElement";
/**
* Maximum number of all elements in a single document.
* @since 4.2
*/
public final static String P_MAX_ELEMENT_COUNT = "com.ctc.wstx.maxElementCount";
/**
* Maximum level of nesting of XML elements, starting with root element.
* @since 4.2
*/
public final static String P_MAX_ELEMENT_DEPTH = "com.ctc.wstx.maxElementDepth";
/**
* Maximum length of input document, in characters.
* @since 4.2
*/
public final static String P_MAX_CHARACTERS = "com.ctc.wstx.maxCharacters";
/**
* Maximum length of individual text (cdata) segments in input, in characters.
* @since 4.2
*/
public final static String P_MAX_TEXT_LENGTH = "com.ctc.wstx.maxTextLength";
// and more size constraints (4.3+)
/**
* Maximum number of total (general parsed) entity expansions within input.
*
* @since 4.3
*/
public final static String P_MAX_ENTITY_COUNT = "com.ctc.wstx.maxEntityCount";
/**
* Maximum depth of nested (general parsed) entity expansions.
*
* @since 4.3
*/
public final static String P_MAX_ENTITY_DEPTH = "com.ctc.wstx.maxEntityDepth";
// // // Entity handling
/**
* Property of type {@link java.util.Map}, that defines explicit set of
* internal (generic) entities that will define of override any entities
* defined in internal or external subsets; except for the 5 pre-defined
* entities (lt, gt, amp, apos, quot). Can be used to explicitly define
* entites that would normally come from a DTD.
*
* @deprecated This feature may be removed from future versions of
* Woodstox, since the same functionality can be achieved by using
* custom entity resolvers.
*/
public final static String P_CUSTOM_INTERNAL_ENTITIES = "com.ctc.wstx.customInternalEntities";
/**
* Property of type {@link XMLResolver}, that
* will allow overriding of default DTD and external parameter entity
* resolution.
*/
public final static String P_DTD_RESOLVER = "com.ctc.wstx.dtdResolver";
/**
* Property of type {@link XMLResolver}, that
* will allow overriding of default external general entity
* resolution. Note that using this property overrides settings done
* using {@link javax.xml.stream.XMLInputFactory#RESOLVER} (and vice versa).
*/
public final static String P_ENTITY_RESOLVER = "com.ctc.wstx.entityResolver";
/**
* Property of type {@link XMLResolver}, that
* will allow graceful handling of references to undeclared (general)
* entities.
*/
public final static String P_UNDECLARED_ENTITY_RESOLVER = "com.ctc.wstx.undeclaredEntityResolver";
/**
* Property of type {@link java.net.URL}, that will allow specifying
* context URL to use when resolving relative references, for the
* main-level entities (external DTD subset, references from the internal
* DTD subset).
*/
public final static String P_BASE_URL = "com.ctc.wstx.baseURL";
// // // Alternate parsing modes
/**
* Three-valued property (one of
* {@link #PARSING_MODE_DOCUMENT},
* {@link #PARSING_MODE_FRAGMENT} or
* {@link #PARSING_MODE_DOCUMENTS}; default being the document mode)
* that can be used to handle "non-standard" XML content. The default
* mode (PARSING_MODE_DOCUMENT) allows parsing of only
* well-formed XML documents, but the other two modes allow more lenient
* parsing. Fragment mode allows parsing of XML content that does not
* have a single root element (can have zero or more), nor can have
* XML or DOCTYPE declarations: this may be useful if parsing a subset
* of a full XML document. Multi-document
* (PARSING_MODE_DOCUMENTS) mode on the other hand allows
* parsing of a stream that contains multiple consequtive well-formed
* documents, with possibly multiple XML and DOCTYPE declarations.
*
* The main difference from the API perspective is that in first two
* modes, START_DOCUMENT and END_DOCUMENT are used as usual (as the first
* and last events returned), whereas the multi-document mode can return
* multiple pairs of these events: although it is still true that the
* first event (one cursor points to when reader is instantiated or
* returned by the event reader), there may be intervening pairs that
* signal boundary between two adjacent enclosed documents.
*/
public final static String P_INPUT_PARSING_MODE = "com.ctc.wstx.fragmentMode";
// // // DTD defaulting, overriding
/*
////////////////////////////////////////////////////////////////////
// Helper classes, values enumerations
////////////////////////////////////////////////////////////////////
*/
public final static ParsingMode PARSING_MODE_DOCUMENT = new ParsingMode();
public final static ParsingMode PARSING_MODE_FRAGMENT = new ParsingMode();
public final static ParsingMode PARSING_MODE_DOCUMENTS = new ParsingMode();
/**
* Inner class used for creating type-safe enumerations (prior to JDK 1.5).
*/
public final static class ParsingMode
{
ParsingMode() { }
}
}