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87 changes: 56 additions & 31 deletions
87
src/main/java/com/fasterxml/jackson/databind/ext/Java7Support.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,49 +1,74 @@ | ||
| package com.fasterxml.jackson.databind.ext; | ||
|
|
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| import java.beans.ConstructorProperties; | ||
| import java.beans.Transient; | ||
| import java.nio.file.Path; | ||
|
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| import com.fasterxml.jackson.databind.JsonDeserializer; | ||
| import com.fasterxml.jackson.databind.JsonSerializer; | ||
| import com.fasterxml.jackson.databind.PropertyName; | ||
| import com.fasterxml.jackson.databind.introspect.Annotated; | ||
| import com.fasterxml.jackson.databind.introspect.AnnotatedParameter; | ||
| import com.fasterxml.jackson.databind.util.ClassUtil; | ||
| import com.fasterxml.jackson.databind.introspect.AnnotatedWithParams; | ||
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| /** | ||
| * To support Java7-incomplete platforms, we will offer support for JDK 7 | ||
| * annotations through this class, loaded dynamically; if loading fails, | ||
| * support will be missing. This class is the non-JDK-7-dependent API, | ||
| * and {@link Java7SupportImpl} is JDK7-dependent implementation of | ||
| * functionality. | ||
| * Due to historical reasons, Java 7 type support has been separate. | ||
| */ | ||
| public abstract class Java7Support | ||
| public class Java7Support | ||
| { | ||
| private final static Java7Support IMPL; | ||
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| static { | ||
| Java7Support impl = null; | ||
| try { | ||
| Class<?> cls = Class.forName("com.fasterxml.jackson.databind.ext.Java7SupportImpl"); | ||
| impl = (Java7Support) ClassUtil.createInstance(cls, false); | ||
| } catch (Throwable t) { | ||
| // 24-Nov-2015, tatu: Should we log or not? | ||
| java.util.logging.Logger.getLogger(Java7Support.class.getName()) | ||
| .warning("Unable to load JDK7 types (annotations, java.nio.file.Path): no Java7 support added"); | ||
| } | ||
| IMPL = impl; | ||
| } | ||
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| public static Java7Support instance() { | ||
| return IMPL; | ||
| return new Java7Support(); | ||
| } | ||
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| public abstract Boolean findTransient(Annotated a); | ||
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| public abstract Boolean hasCreatorAnnotation(Annotated a); | ||
| public Class<?> getClassJavaNioFilePath() { | ||
| return Path.class; | ||
| } | ||
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| public abstract PropertyName findConstructorName(AnnotatedParameter p); | ||
| public JsonDeserializer<?> getDeserializerForJavaNioFilePath(Class<?> rawType) { | ||
| if (rawType == Path.class) { | ||
| return new NioPathDeserializer(); | ||
| } | ||
| return null; | ||
| } | ||
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| public abstract Class<?> getClassJavaNioFilePath(); | ||
| public JsonSerializer<?> getSerializerForJavaNioFilePath(Class<?> rawType) { | ||
| if (Path.class.isAssignableFrom(rawType)) { | ||
| return new NioPathSerializer(); | ||
| } | ||
| return null; | ||
| } | ||
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| public abstract JsonDeserializer<?> getDeserializerForJavaNioFilePath(Class<?> rawType); | ||
| public Boolean findTransient(Annotated a) { | ||
| Transient t = a.getAnnotation(Transient.class); | ||
| if (t != null) { | ||
| return t.value(); | ||
| } | ||
| return null; | ||
| } | ||
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| public Boolean hasCreatorAnnotation(Annotated a) { | ||
| ConstructorProperties props = a.getAnnotation(ConstructorProperties.class); | ||
| // 08-Nov-2015, tatu: One possible check would be to ensure there is at least | ||
| // one name iff constructor has arguments. But seems unnecessary for now. | ||
| if (props != null) { | ||
| return Boolean.TRUE; | ||
| } | ||
| return null; | ||
| } | ||
|
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| public abstract JsonSerializer<?> getSerializerForJavaNioFilePath(Class<?> rawType); | ||
| } | ||
| public PropertyName findConstructorName(AnnotatedParameter p) | ||
| { | ||
| AnnotatedWithParams ctor = p.getOwner(); | ||
| if (ctor != null) { | ||
| ConstructorProperties props = ctor.getAnnotation(ConstructorProperties.class); | ||
| if (props != null) { | ||
| String[] names = props.value(); | ||
| int ix = p.getIndex(); | ||
| if (ix < names.length) { | ||
| return PropertyName.construct(names[ix]); | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } |
86 changes: 0 additions & 86 deletions
86
src/main/java/com/fasterxml/jackson/databind/ext/Java7SupportImpl.java
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