2 * Copyright 2011-2012 GRNET S.A. All rights reserved.
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5 * without modification, are permitted provided that the following
8 * 1. Redistributions of source code must retain the above
9 * copyright notice, this list of conditions and the following
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13 * copyright notice, this list of conditions and the following
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17 * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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36 package gr.grnet.aquarium.converter
38 import net.liftweb.json.JsonAST.JValue
39 import net.liftweb.json._
40 import ext.JodaTimeSerializers
42 import gr.grnet.aquarium.util.{makeString, UTF_8_Charset}
43 import java.nio.charset.Charset
46 * Provides conversion methods from and to JSON.
48 * The underlying library used is lift-json.
50 * @author Christos KK Loverdos <loverdos@gmail.com>
53 object JsonConversions {
55 * The application-wide JSON formats used from the underlying lift-json library.
57 implicit final val Formats = (DefaultFormats ++ JodaTimeSerializers.all)
58 // implicit final val Formats = (DefaultFormats.withHints(FullTypeHints(List(classOf[AnyRef]))) ++ JodaTimeSerializers.all)
59 // Serialization.formats(FullTypeHints(List(classOf[AnyRef])))
62 * Converts a value to JSON AST (Abstract Syntax Tree) by acting a bit intelligently, depending on the actual type
63 * of the given value. In particular, if the given value `any` is already a JSON AST, it is returned
64 * as is. Also, if the given value `any` is a String, it is assumed that the string is already a JSON
65 * representation and then it is parsed to a JSON AST.
67 final def anyToJValue(any: Any)(implicit formats: Formats = Formats): JValue = {
73 case jsonFormat: JsonTextFormat ⇒
74 jsonToJValue(jsonFormat.value)
76 Extraction.decompose(any)
80 final def jsonToJValue(json: String): JValue = {
84 final def jValueToCompactString(jValue: JValue): String = {
85 Printer.compact(JsonAST.render(jValue))
88 final def jValueToPrettyString(jValue: JValue): String = {
89 Printer.pretty(JsonAST.render(jValue))
92 final def anyToJson(any: Any, pretty: Boolean = true)(implicit formats: Formats = Formats): String = {
93 val jValue = anyToJValue(any)
94 val jDoc = JsonAST.render(jValue)
102 final def jsonBytesToJson(bytes: Array[Byte], charset: Charset = UTF_8_Charset): String = {
103 makeString(bytes, charset)
106 final def jsonBytesToObject[A: Manifest](bytes: Array[Byte], charset: Charset = UTF_8_Charset): A = {
107 val json = jsonBytesToJson(bytes, charset)
108 jsonToObject[A](json)
111 final def jsonToObject[A](json: String)(implicit ma: Manifest[A], formats: Formats = Formats): A = {
112 val jValue = parse(json)
113 jValueToObject[A](jValue)
116 final def jValueToObject[A](jValue: JValue)(implicit ma: Manifest[A], formats: Formats = Formats): A = {
117 Extraction.extract[A](jValue)