blob: cd2525bfc5af915ea953dc8a35a2a25f8c006798 [file] [log] [blame]
// ***************************************************************************************************************************
// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file *
// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file *
// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance *
// * with the License. You may obtain a copy of the License at *
// * *
// * http://www.apache.org/licenses/LICENSE-2.0 *
// * *
// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an *
// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the *
// * specific language governing permissions and limitations under the License. *
// ***************************************************************************************************************************
package org.apache.juneau.uon;
import org.apache.juneau.*;
import org.apache.juneau.annotation.*;
import org.apache.juneau.httppart.*;
import org.apache.juneau.serializer.*;
import org.apache.juneau.urlencoding.*;
/**
* Serializes POJO models to UON (a notation for URL-encoded query parameter values).
*
* <h5 class='topic'>Media types</h5>
*
* Handles <c>Accept</c> types: <bc>text/uon</bc>
* <p>
* Produces <c>Content-Type</c> types: <bc>text/uon</bc>
*
* <h5 class='topic'>Description</h5>
*
* This serializer provides several serialization options.
* Typically, one of the predefined DEFAULT serializers will be sufficient.
* However, custom serializers can be constructed to fine-tune behavior.
*
* <p>
* The following shows a sample object defined in Javascript:
* <p class='bcode w800'>
* {
* id: 1,
* name: <js>'John Smith'</js>,
* uri: <js>'http://sample/addressBook/person/1'</js>,
* addressBookUri: <js>'http://sample/addressBook'</js>,
* birthDate: <js>'1946-08-12T00:00:00Z'</js>,
* otherIds: <jk>null</jk>,
* addresses: [
* {
* uri: <js>'http://sample/addressBook/address/1'</js>,
* personUri: <js>'http://sample/addressBook/person/1'</js>,
* id: 1,
* street: <js>'100 Main Street'</js>,
* city: <js>'Anywhereville'</js>,
* state: <js>'NY'</js>,
* zip: 12345,
* isCurrent: <jk>true</jk>,
* }
* ]
* }
* </p>
*
* <p>
* Using the "strict" syntax defined in this document, the equivalent UON notation would be as follows:
* <p class='bcode w800'>
* (
* <ua>id</ua>=<un>1</un>,
* <ua>name</ua>=<us>'John+Smith'</us>,
* <ua>uri</ua>=<us>http://sample/addressBook/person/1</us>,
* <ua>addressBookUri</ua>=<us>http://sample/addressBook</us>,
* <ua>birthDate</ua>=<us>1946-08-12T00:00:00Z</us>,
* <ua>otherIds</ua>=<uk>null</uk>,
* <ua>addresses</ua>=@(
* (
* <ua>uri</ua>=<us>http://sample/addressBook/address/1</us>,
* <ua>personUri</ua>=<us>http://sample/addressBook/person/1</us>,
* <ua>id</ua>=<un>1</un>,
* <ua>street</ua>=<us>'100+Main+Street'</us>,
* <ua>city</ua>=<us>Anywhereville</us>,
* <ua>state</ua>=<us>NY</us>,
* <ua>zip</ua>=<un>12345</un>,
* <ua>isCurrent</ua>=<uk>true</uk>
* )
* )
* )
* </p>
*
* <h5 class='section'>Example:</h5>
* <p class='bcode w800'>
* <jc>// Serialize a Map</jc>
* Map m = <jk>new</jk> ObjectMap(<js>"{a:'b',c:1,d:false,e:['f',1,false],g:{h:'i'}}"</js>);
*
* <jc>// Serialize to value equivalent to JSON.</jc>
* <jc>// Produces "(a=b,c=1,d=false,e=@(f,1,false),g=(h=i))"</jc>
* String s = UonSerializer.<jsf>DEFAULT</jsf>.serialize(s);
*
* <jc>// Serialize a bean</jc>
* <jk>public class</jk> Person {
* <jk>public</jk> Person(String s);
* <jk>public</jk> String getName();
* <jk>public int</jk> getAge();
* <jk>public</jk> Address getAddress();
* <jk>public boolean</jk> deceased;
* }
*
* <jk>public class</jk> Address {
* <jk>public</jk> String getStreet();
* <jk>public</jk> String getCity();
* <jk>public</jk> String getState();
* <jk>public int</jk> getZip();
* }
*
* Person p = <jk>new</jk> Person(<js>"John Doe"</js>, 23, <js>"123 Main St"</js>, <js>"Anywhere"</js>,
* <js>"NY"</js>, 12345, <jk>false</jk>);
*
* <jc>// Produces "(name='John Doe',age=23,address=(street='123 Main St',city=Anywhere,state=NY,zip=12345),deceased=false)"</jc>
* String s = UonSerializer.<jsf>DEFAULT</jsf>.serialize(s);
* </p>
*/
@ConfigurableContext
public class UonSerializer extends WriterSerializer implements HttpPartSerializer, UonCommon {
//-------------------------------------------------------------------------------------------------------------------
// Configurable properties
//-------------------------------------------------------------------------------------------------------------------
static final String PREFIX = "UonSerializer";
/**
* Configuration property: Add <js>"_type"</js> properties when needed.
*
* <h5 class='section'>Property:</h5>
* <ul>
* <li><b>Name:</b> <js>"UonSerializer.addBeanTypes.b"</js>
* <li><b>Data type:</b> <c>Boolean</c>
* <li><b>Default:</b> <jk>false</jk>
* <li><b>Session property:</b> <jk>false</jk>
* <li><b>Methods:</b>
* <ul>
* <li class='jm'>{@link UonSerializerBuilder#addBeanTypes(boolean)}
* </ul>
* </ul>
*
* <h5 class='section'>Description:</h5>
* <p>
* If <jk>true</jk>, then <js>"_type"</js> properties will be added to beans if their type cannot be inferred
* through reflection.
*
* <p>
* When present, this value overrides the {@link #SERIALIZER_addBeanTypes} setting and is
* provided to customize the behavior of specific serializers in a {@link SerializerGroup}.
*/
public static final String UON_addBeanTypes = PREFIX + ".addBeanTypes.b";
/**
* Configuration property: Encode non-valid URI characters.
*
* <h5 class='section'>Property:</h5>
* <ul>
* <li><b>Name:</b> <js>"UonSerializer.encoding.b"</js>
* <li><b>Data type:</b> <c>Boolean</c>
* <li><b>Default:</b> <jk>false</jk> for {@link UonSerializer}, <jk>true</jk> for {@link UrlEncodingSerializer}
* <li><b>Session property:</b> <jk>false</jk>
* <li><b>Methods:</b>
* <ul>
* <li class='jm'>{@link UonSerializerBuilder#encoding(boolean)}
* <li class='jm'>{@link UonSerializerBuilder#encoding()}
* </ul>
* </ul>
*
* <h5 class='section'>Description:</h5>
* <p>
* Encode non-valid URI characters with <js>"%xx"</js> constructs.
*
* <p>
* If <jk>true</jk>, non-valid URI characters will be converted to <js>"%xx"</js> sequences.
* <br>Set to <jk>false</jk> if parameter value is being passed to some other code that will already perform
* URL-encoding of non-valid URI characters.
*
* <h5 class='section'>Example:</h5>
* <p class='bcode w800'>
* <jc>// Create a non-encoding UON serializer.</jc>
* UonSerializer s1 = UonSerializer.
* .<jsm>create</jsm>()
* .build();
*
* <jc>// Create an encoding UON serializer.</jc>
* UonSerializer s2 = UonSerializer.
* .<jsm>create</jsm>()
* .encoding()
* .build();
*
* ObjectMap m = <jk>new</jk> ObjectMap().append("foo", "foo bar");
*
* <jc>// Produces: "(foo=foo bar)"</jc>
* String uon1 = s1.serialize(m)
*
* <jc>// Produces: "(foo=foo%20bar)"</jc>
* String uon2 = s2.serialize(m)
* </p>
*/
public static final String UON_encoding = PREFIX + ".encoding.b";
/**
* Configuration property: Format to use for query/form-data/header values.
*
* <h5 class='section'>Property:</h5>
* <ul>
* <li><b>Name:</b> <js>"UonSerializer.paramFormat.s"</js>
* <li><b>Data type:</b> <c>String</c> ({@link ParamFormat})
* <li><b>Default:</b> <js>"UON"</js>
* <li><b>Session property:</b> <jk>false</jk>
* <li><b>Methods:</b>
* <ul>
* <li class='jm'>{@link UonSerializerBuilder#paramFormat(ParamFormat)}
* <li class='jm'>{@link UonSerializerBuilder#paramFormatPlain()}
* </ul>
* </ul>
*
* <h5 class='section'>Description:</h5>
* <p>
* Specifies the format to use for URL GET parameter keys and values.
*
* <p>
* Possible values:
* <ul class='javatree'>
* <li class='jf'>{@link ParamFormat#UON} - Use UON notation for parameters.
* <li class='jf'>{@link ParamFormat#PLAINTEXT} - Use plain text for parameters.
* </ul>
*
* <h5 class='section'>Example:</h5>
* <p class='bcode w800'>
* <jc>// Create a normal UON serializer.</jc>
* UonSerializer s1 = UonSerializer.
* .<jsm>create</jsm>()
* .build();
*
* <jc>// Create a plain-text UON serializer.</jc>
* UonSerializer s2 = UonSerializer.
* .<jsm>create</jsm>()
* .paramFormat(<jsf>PLAIN_TEXT</jsf>)
* .build();
*
* ObjectMap m = <jk>new</jk> ObjectMap()
* .append(<js>"foo"</js>, <js>"bar"</js>);
* .append(<js>"baz"</js>, <jk>new</jk> String[]{<js>"qux"</js>, <js>"true"</js>, <js>"123"</js>});
*
* <jc>// Produces: "(foo=bar,baz=@(qux,'true','123'))"</jc>
* String uon1 = s1.serialize(m)
*
* <jc>// Produces: "foo=bar,baz=qux,true,123"</jc>
* String uon2 = s2.serialize(m)
* </p>
*/
public static final String UON_paramFormat = PREFIX + ".paramFormat.s";
//-------------------------------------------------------------------------------------------------------------------
// Predefined instances
//-------------------------------------------------------------------------------------------------------------------
/** Reusable instance of {@link UonSerializer}, all default settings. */
public static final UonSerializer DEFAULT = new UonSerializer(PropertyStore.DEFAULT);
/** Reusable instance of {@link UonSerializer.Readable}. */
public static final UonSerializer DEFAULT_READABLE = new Readable(PropertyStore.DEFAULT);
/** Reusable instance of {@link UonSerializer.Encoding}. */
public static final UonSerializer DEFAULT_ENCODING = new Encoding(PropertyStore.DEFAULT);
//-------------------------------------------------------------------------------------------------------------------
// Predefined subclasses
//-------------------------------------------------------------------------------------------------------------------
/**
* Equivalent to <code>UonSerializer.<jsm>create</jsm>().ws().build();</code>.
*/
public static class Readable extends UonSerializer {
/**
* Constructor.
*
* @param ps The property store containing all the settings for this object.
*/
public Readable(PropertyStore ps) {
super(ps.builder().set(WSERIALIZER_useWhitespace, true).build());
}
}
/**
* Equivalent to <code>UonSerializer.<jsm>create</jsm>().encoding().build();</code>.
*/
public static class Encoding extends UonSerializer {
/**
* Constructor.
*
* @param ps The property store containing all the settings for this object.
*/
public Encoding(PropertyStore ps) {
super(ps.builder().set(UON_encoding, true).build());
}
}
//-------------------------------------------------------------------------------------------------------------------
// Instance
//-------------------------------------------------------------------------------------------------------------------
private final boolean
encoding,
addBeanTypes;
private final ParamFormat
paramFormat;
/**
* Constructor.
*
* @param ps
* The property store containing all the settings for this object.
*/
public UonSerializer(PropertyStore ps) {
this(ps, "text/uon", (String)null);
}
/**
* Constructor.
*
* @param ps
* The property store containing all the settings for this object.
* @param produces
* The media type that this serializer produces.
* @param accept
* The accept media types that the serializer can handle.
* <p>
* Can contain meta-characters per the <c>media-type</c> specification of {@doc RFC2616.section14.1}
* <p>
* If empty, then assumes the only media type supported is <c>produces</c>.
* <p>
* For example, if this serializer produces <js>"application/json"</js> but should handle media types of
* <js>"application/json"</js> and <js>"text/json"</js>, then the arguments should be:
* <p class='bcode w800'>
* <jk>super</jk>(ps, <js>"application/json"</js>, <js>"application/json,text/json"</js>);
* </p>
* <br>...or...
* <p class='bcode w800'>
* <jk>super</jk>(ps, <js>"application/json"</js>, <js>"*&#8203;/json"</js>);
* </p>
* <p>
* The accept value can also contain q-values.
*/
public UonSerializer(PropertyStore ps, String produces, String accept) {
super(ps, produces, accept);
encoding = getBooleanProperty(UON_encoding, false);
addBeanTypes = getBooleanProperty(UON_addBeanTypes, getBooleanProperty(SERIALIZER_addBeanTypes, false));
paramFormat = getProperty(UON_paramFormat, ParamFormat.class, ParamFormat.UON);
}
@Override /* Context */
public UonSerializerBuilder builder() {
return new UonSerializerBuilder(getPropertyStore());
}
/**
* Instantiates a new clean-slate {@link UonSerializerBuilder} object.
*
* <p>
* This is equivalent to simply calling <code><jk>new</jk> UonSerializerBuilder()</code>.
*
* <p>
* Note that this method creates a builder initialized to all default settings, whereas {@link #builder()} copies
* the settings of the object called on.
*
* @return A new {@link UonSerializerBuilder} object.
*/
public static UonSerializerBuilder create() {
return new UonSerializerBuilder();
}
//-----------------------------------------------------------------------------------------------------------------
// Entry point methods
//-----------------------------------------------------------------------------------------------------------------
@Override /* Context */
public UonSerializerSession createSession() {
return createSession(createDefaultSessionArgs());
}
@Override /* Serializer */
public UonSerializerSession createSession(SerializerSessionArgs args) {
return new UonSerializerSession(this, null, args);
}
@Override /* HttpPartSerializer */
public UonSerializerSession createPartSession(SerializerSessionArgs args) {
return new UonSerializerSession(this, null, args);
}
@Override /* HttpPartSerializer */
public UonSerializerSession createPartSession() {
return createPartSession(null);
}
@Override /* HttpPartSerializer */
public String serialize(HttpPartType partType, HttpPartSchema schema, Object value) throws SchemaValidationException, SerializeException {
return createPartSession().serialize(partType, schema, value);
}
@Override /* HttpPartSerializer */
public String serialize(HttpPartSchema schema, Object value) throws SchemaValidationException, SerializeException {
return createPartSession().serialize(null, schema, value);
}
//-----------------------------------------------------------------------------------------------------------------
// Properties
//-----------------------------------------------------------------------------------------------------------------
/**
* Configuration property: Add <js>"_type"</js> properties when needed.
*
* @see #UON_addBeanTypes
* @return
* <jk>true</jk> if <js>"_type"</js> properties will be added to beans if their type cannot be inferred
* through reflection.
*/
@Override
protected final boolean isAddBeanTypes() {
return addBeanTypes;
}
/**
* Configuration property: Encode non-valid URI characters.
*
* @see #UON_encoding
* @return
* <jk>true</jk> if non-valid URI characters should be encoded with <js>"%xx"</js> constructs.
*/
protected final boolean isEncoding() {
return encoding;
}
/**
* Configuration property: Format to use for query/form-data/header values.
*
* @see #UON_paramFormat
* @return
* Specifies the format to use for URL GET parameter keys and values.
*/
protected final ParamFormat getParamFormat() {
return paramFormat;
}
//-----------------------------------------------------------------------------------------------------------------
// Other methods
//-----------------------------------------------------------------------------------------------------------------
@Override /* Context */
public ObjectMap toMap() {
return super.toMap()
.append("UonSerializer", new DefaultFilteringObjectMap()
.append("encoding", encoding)
.append("addBeanTypes", addBeanTypes)
.append("paramFormat", paramFormat)
);
}
}