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src/main/java/tools/jackson/dataformat/xml/XmlReadFeature.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package tools.jackson.dataformat.xml; | ||
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| import javax.xml.XMLConstants; | ||
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| import tools.jackson.core.FormatFeature; | ||
| import tools.jackson.core.JsonToken; | ||
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| /** | ||
| * Enumeration that defines all togglable features for XML parsers. | ||
| *<p> | ||
| * NOTE: in Jackson 2.x this was named {@code FromXmlParser.Feature}. | ||
| */ | ||
| public enum XmlReadFeature implements FormatFeature | ||
| { | ||
| /** | ||
| * Feature that enables automatic conversion of incoming "xsi:type" | ||
| * (where "type" is the local name and "xsi" prefix is bound to URI | ||
| * {@link XMLConstants#W3C_XML_SCHEMA_INSTANCE_NS_URI}), | ||
| * into Jackson simple Property Name of {@code "xsi:type"}. | ||
| * This is usually needed to read content written using | ||
| * matching {@code ToXmlGenerator.Feature#AUTO_DETECT_XSI_TYPE} feature, | ||
| * usually used for Polymorphic handling where it is difficult | ||
| * to specify proper XML Namespace for type identifier. | ||
| *<p> | ||
| * Default setting is {@code false}. | ||
| */ | ||
| AUTO_DETECT_XSI_TYPE(false), | ||
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| /** | ||
| * Feature that indicates whether empty XML elements | ||
| * (both empty tags like {@code <tag />} and {@code <tag></tag>} | ||
| * (with no intervening cdata) | ||
| * are exposed as {@link JsonToken#VALUE_NULL}) or not. | ||
| * If they are not | ||
| * returned as `null` tokens, they will be returned as {@link JsonToken#VALUE_STRING} | ||
| * tokens with textual value of "" (empty String). | ||
| *<p> | ||
| * NOTE: in Jackson 2.x, only "true" empty tags were affected, not split ones. | ||
| * With 3.x both cases handled uniformly. | ||
| *<p> | ||
| * Default setting is {@code false}. | ||
| */ | ||
| EMPTY_ELEMENT_AS_NULL(false), | ||
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| /** | ||
| * Feature that indicates whether XML Schema Instance attribute | ||
| * {@code xsi:nil} will be processed automatically -- to indicate {@code null} | ||
| * values -- or not. | ||
| * If enabled, {@code xsi:nil} attribute on any XML element will mark such | ||
| * elements as "null values" and any other attributes or child elements they | ||
| * might have to be ignored. If disabled this attribute will be exposed like | ||
| * any other attribute. | ||
| *<p> | ||
| * Default setting is {@code true}. | ||
| */ | ||
| PROCESS_XSI_NIL(true), | ||
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| ; | ||
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| private final boolean _defaultState; | ||
| private final int _mask; | ||
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| /** | ||
| * Method that calculates bit set (flags) of all features that | ||
| * are enabled by default. | ||
| */ | ||
| public static int collectDefaults() | ||
| { | ||
| int flags = 0; | ||
| for (XmlReadFeature f : values()) { | ||
| if (f.enabledByDefault()) { | ||
| flags |= f.getMask(); | ||
| } | ||
| } | ||
| return flags; | ||
| } | ||
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| private XmlReadFeature(boolean defaultState) { | ||
| _defaultState = defaultState; | ||
| _mask = (1 << ordinal()); | ||
| } | ||
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| @Override public boolean enabledByDefault() { return _defaultState; } | ||
| @Override public int getMask() { return _mask; } | ||
| @Override public boolean enabledIn(int flags) { return (flags & getMask()) != 0; } | ||
| } |
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