// ***************************************************************************************************************************
// * 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 static org.apache.juneau.collections.JsonMap.*;
import java.lang.annotation.*;
import java.lang.reflect.*;
import java.nio.charset.*;
import java.util.*;
import java.util.concurrent.*;

import org.apache.juneau.*;
import org.apache.juneau.collections.*;
import org.apache.juneau.http.header.*;
import org.apache.juneau.httppart.*;
import org.apache.juneau.internal.*;
import org.apache.juneau.parser.*;
import org.apache.juneau.utils.*;

/**
 * Parses UON (a notation for URL-encoded query parameter values) text into POJO models.
 *
 * <h5 class='topic'>Media types</h5>
 * <p>
 * Handles <c>Content-Type</c> types:  <bc>text/uon</bc>
 *
 * <h5 class='topic'>Description</h5>
 * <p>
 * This parser uses a state machine, which makes it very fast and efficient.
 *
 * <ul class='notes'>
 * 	<li class='note'>This class is thread safe and reusable.
 * </ul>
 *
 * <ul class='seealso'>
 * 	<li class='link'>{@doc jm.UonDetails}
 * 	<li class='extlink'>{@source}
 * </ul>
 */
public class UonParser extends ReaderParser implements HttpPartParser, UonMetaProvider {

	//-------------------------------------------------------------------------------------------------------------------
	// Static
	//-------------------------------------------------------------------------------------------------------------------

	/** Reusable instance of {@link UonParser}, all default settings. */
	public static final UonParser DEFAULT = new UonParser(create());

	/** Reusable instance of {@link UonParser} with decodeChars set to true. */
	public static final UonParser DEFAULT_DECODING = new UonParser.Decoding(create());

	/**
	 * Creates a new builder for this object.
	 *
	 * @return A new builder.
	 */
	public static Builder create() {
		return new Builder();
	}

	//-------------------------------------------------------------------------------------------------------------------
	// Static subclasses
	//-------------------------------------------------------------------------------------------------------------------

	/** Default parser, decoding. */
	public static class Decoding extends UonParser {

		/**
		 * Constructor.
		 *
		 * @param builder The builder for this object.
		 */
		public Decoding(Builder builder) {
			super(builder.decoding());
		}
	}

	//-------------------------------------------------------------------------------------------------------------------
	// Builder
	//-------------------------------------------------------------------------------------------------------------------

	/**
	 * Builder class.
	 */
	@FluentSetters
	public static class Builder extends ReaderParser.Builder {

		private static final Cache<HashKey,UonParser> CACHE = Cache.of(HashKey.class, UonParser.class).build();

		boolean decoding, validateEnd;

		/**
		 * Constructor, default settings.
		 */
		protected Builder() {
			super();
			consumes("text/uon");
			decoding = env("UonParser.decoding", false);
			validateEnd = env("UonParser.validateEnd", false);
		}

		/**
		 * Copy constructor.
		 *
		 * @param copyFrom The bean to copy from.
		 */
		protected Builder(UonParser copyFrom) {
			super(copyFrom);
			decoding = copyFrom.decoding;
			validateEnd = copyFrom.validateEnd;
		}

		/**
		 * Copy constructor.
		 *
		 * @param copyFrom The builder to copy from.
		 */
		protected Builder(Builder copyFrom) {
			super(copyFrom);
			decoding = copyFrom.decoding;
			validateEnd = copyFrom.validateEnd;
		}

		@Override /* Context.Builder */
		public Builder copy() {
			return new Builder(this);
		}

		@Override /* Context.Builder */
		public UonParser build() {
			return cache(CACHE).build(UonParser.class);
		}

		@Override /* Context.Builder */
		public HashKey hashKey() {
			return HashKey.of(
				super.hashKey(),
				decoding,
				validateEnd
			);
		}

		//-----------------------------------------------------------------------------------------------------------------
		// Properties
		//-----------------------------------------------------------------------------------------------------------------

		/**
		 * Decode <js>"%xx"</js> sequences.
		 *
		 * <p>
		 * When enabled, URI encoded characters will be decoded.  Otherwise it's assumed that they've already been decoded
		 * before being passed to this parser.
		 *
		 * <h5 class='section'>Example:</h5>
		 * <p class='bjava'>
		 * 	<jc>// Create a decoding UON parser.</jc>
		 * 	ReaderParser <jv>parser</jv> = UonParser.
		 * 		.<jsm>create</jsm>()
		 * 		.decoding()
		 * 		.build();
		 *
		 *  <jc>// Produces: ["foo bar", "baz quz"].</jc>
		 * 	String[] <jv>foo</jv> = <jv>parser</jv>.parse(<js>"@(foo%20bar,baz%20qux)"</js>, String[].<jk>class</jk>);
		 * </p>
		 *
		 * @return This object.
		 */
		@FluentSetter
		public Builder decoding() {
			return decoding(true);
		}

		/**
		 * Same as {@link #decoding()} but allows you to explicitly specify the value.
		 *
		 * @param value The value for this setting.
		 * @return This object.
		 */
		@FluentSetter
		public Builder decoding(boolean value) {
			decoding = value;
			return this;
		}

		/**
		 * Validate end.
		 *
		 * <p>
		 * When enabled, after parsing a POJO from the input, verifies that the remaining input in
		 * the stream consists of only comments or whitespace.
		 *
		 * <h5 class='section'>Example:</h5>
		 * <p class='bjava'>
		 * 	<jc>// Create a parser using strict mode.</jc>
		 * 	ReaderParser <jv>parser</jv> = UonParser.
		 * 		.<jsm>create</jsm>()
		 * 		.validateEnd()
		 * 		.build();
		 *
		 * 	<jc>// Should fail because input has multiple POJOs.</jc>
		 * 	String <jv>in</jv> = <js>"(foo=bar)(baz=qux)"</js>;
		 * 	MyBean <jv>myBean</jv> = <jv>parser</jv>.parse(<jv>in</jv>, MyBean.<jk>class</jk>);
		 * </p>
		 *
		 * @return This object.
		 */
		@FluentSetter
		public Builder validateEnd() {
			return validateEnd(true);
		}

		/**
		 * Same as {@link #validateEnd()} but allows you to explicitly specify the value.
		 *
		 * @param value The value for this setting.
		 * @return This object.
		 */
		@FluentSetter
		public Builder validateEnd(boolean value) {
			validateEnd = value;
			return this;
		}

		// <FluentSetters>

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder annotations(Annotation...values) {
			super.annotations(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder apply(AnnotationWorkList work) {
			super.apply(work);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder applyAnnotations(java.lang.Class<?>...fromClasses) {
			super.applyAnnotations(fromClasses);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder applyAnnotations(Method...fromMethods) {
			super.applyAnnotations(fromMethods);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder cache(Cache<HashKey,? extends org.apache.juneau.Context> value) {
			super.cache(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder debug() {
			super.debug();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder debug(boolean value) {
			super.debug(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder impl(Context value) {
			super.impl(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.Context.Builder */
		public Builder type(Class<? extends org.apache.juneau.Context> value) {
			super.type(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanClassVisibility(Visibility value) {
			super.beanClassVisibility(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanConstructorVisibility(Visibility value) {
			super.beanConstructorVisibility(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanContext(BeanContext value) {
			super.beanContext(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanContext(BeanContext.Builder value) {
			super.beanContext(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanDictionary(java.lang.Class<?>...values) {
			super.beanDictionary(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanFieldVisibility(Visibility value) {
			super.beanFieldVisibility(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanInterceptor(Class<?> on, Class<? extends org.apache.juneau.swap.BeanInterceptor<?>> value) {
			super.beanInterceptor(on, value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanMapPutReturnsOldValue() {
			super.beanMapPutReturnsOldValue();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanMethodVisibility(Visibility value) {
			super.beanMethodVisibility(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanProperties(Map<String,Object> values) {
			super.beanProperties(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanProperties(Class<?> beanClass, String properties) {
			super.beanProperties(beanClass, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanProperties(String beanClassName, String properties) {
			super.beanProperties(beanClassName, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesExcludes(Map<String,Object> values) {
			super.beanPropertiesExcludes(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesExcludes(Class<?> beanClass, String properties) {
			super.beanPropertiesExcludes(beanClass, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesExcludes(String beanClassName, String properties) {
			super.beanPropertiesExcludes(beanClassName, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesReadOnly(Map<String,Object> values) {
			super.beanPropertiesReadOnly(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesReadOnly(Class<?> beanClass, String properties) {
			super.beanPropertiesReadOnly(beanClass, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesReadOnly(String beanClassName, String properties) {
			super.beanPropertiesReadOnly(beanClassName, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesWriteOnly(Map<String,Object> values) {
			super.beanPropertiesWriteOnly(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesWriteOnly(Class<?> beanClass, String properties) {
			super.beanPropertiesWriteOnly(beanClass, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beanPropertiesWriteOnly(String beanClassName, String properties) {
			super.beanPropertiesWriteOnly(beanClassName, properties);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beansRequireDefaultConstructor() {
			super.beansRequireDefaultConstructor();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beansRequireSerializable() {
			super.beansRequireSerializable();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder beansRequireSettersForGetters() {
			super.beansRequireSettersForGetters();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder dictionaryOn(Class<?> on, java.lang.Class<?>...values) {
			super.dictionaryOn(on, values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder disableBeansRequireSomeProperties() {
			super.disableBeansRequireSomeProperties();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder disableIgnoreMissingSetters() {
			super.disableIgnoreMissingSetters();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder disableIgnoreTransientFields() {
			super.disableIgnoreTransientFields();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder disableIgnoreUnknownNullBeanProperties() {
			super.disableIgnoreUnknownNullBeanProperties();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder disableInterfaceProxies() {
			super.disableInterfaceProxies();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public <T> Builder example(Class<T> pojoClass, T o) {
			super.example(pojoClass, o);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public <T> Builder example(Class<T> pojoClass, String json) {
			super.example(pojoClass, json);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder findFluentSetters() {
			super.findFluentSetters();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder findFluentSetters(Class<?> on) {
			super.findFluentSetters(on);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder ignoreInvocationExceptionsOnGetters() {
			super.ignoreInvocationExceptionsOnGetters();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder ignoreInvocationExceptionsOnSetters() {
			super.ignoreInvocationExceptionsOnSetters();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder ignoreUnknownBeanProperties() {
			super.ignoreUnknownBeanProperties();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder ignoreUnknownEnumValues() {
			super.ignoreUnknownEnumValues();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder implClass(Class<?> interfaceClass, Class<?> implClass) {
			super.implClass(interfaceClass, implClass);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder implClasses(Map<Class<?>,Class<?>> values) {
			super.implClasses(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder interfaceClass(Class<?> on, Class<?> value) {
			super.interfaceClass(on, value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder interfaces(java.lang.Class<?>...value) {
			super.interfaces(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder locale(Locale value) {
			super.locale(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder mediaType(MediaType value) {
			super.mediaType(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder notBeanClasses(java.lang.Class<?>...values) {
			super.notBeanClasses(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder notBeanPackages(String...values) {
			super.notBeanPackages(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder propertyNamer(Class<? extends org.apache.juneau.PropertyNamer> value) {
			super.propertyNamer(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder propertyNamer(Class<?> on, Class<? extends org.apache.juneau.PropertyNamer> value) {
			super.propertyNamer(on, value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder sortProperties() {
			super.sortProperties();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder sortProperties(java.lang.Class<?>...on) {
			super.sortProperties(on);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder stopClass(Class<?> on, Class<?> value) {
			super.stopClass(on, value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public <T, S> Builder swap(Class<T> normalClass, Class<S> swappedClass, ThrowingFunction<T,S> swapFunction) {
			super.swap(normalClass, swappedClass, swapFunction);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public <T, S> Builder swap(Class<T> normalClass, Class<S> swappedClass, ThrowingFunction<T,S> swapFunction, ThrowingFunction<S,T> unswapFunction) {
			super.swap(normalClass, swappedClass, swapFunction, unswapFunction);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder swaps(java.lang.Class<?>...values) {
			super.swaps(values);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder timeZone(TimeZone value) {
			super.timeZone(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder typeName(Class<?> on, String value) {
			super.typeName(on, value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder typePropertyName(String value) {
			super.typePropertyName(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder typePropertyName(Class<?> on, String value) {
			super.typePropertyName(on, value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder useEnumNames() {
			super.useEnumNames();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.BeanContextable.Builder */
		public Builder useJavaBeanIntrospector() {
			super.useJavaBeanIntrospector();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder autoCloseStreams() {
			super.autoCloseStreams();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder autoCloseStreams(boolean value) {
			super.autoCloseStreams(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder consumes(String value) {
			super.consumes(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder debugOutputLines(int value) {
			super.debugOutputLines(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder listener(Class<? extends org.apache.juneau.parser.ParserListener> value) {
			super.listener(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder strict() {
			super.strict();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder strict(boolean value) {
			super.strict(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder trimStrings() {
			super.trimStrings();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder trimStrings(boolean value) {
			super.trimStrings(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder unbuffered() {
			super.unbuffered();
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.Parser.Builder */
		public Builder unbuffered(boolean value) {
			super.unbuffered(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.ReaderParser.Builder */
		public Builder fileCharset(Charset value) {
			super.fileCharset(value);
			return this;
		}

		@Override /* GENERATED - org.apache.juneau.parser.ReaderParser.Builder */
		public Builder streamCharset(Charset value) {
			super.streamCharset(value);
			return this;
		}

		// </FluentSetters>
	}

	//-------------------------------------------------------------------------------------------------------------------
	// Instance
	//-------------------------------------------------------------------------------------------------------------------

	final boolean decoding, validateEnd;

	private final Map<ClassMeta<?>,UonClassMeta> uonClassMetas = new ConcurrentHashMap<>();
	private final Map<BeanPropertyMeta,UonBeanPropertyMeta> uonBeanPropertyMetas = new ConcurrentHashMap<>();

	/**
	 * Constructor.
	 *
	 * @param builder The builder for this object.
	 */
	public UonParser(Builder builder) {
		super(builder);
		decoding = builder.decoding;
		validateEnd = builder.validateEnd;
	}

	@Override /* Context */
	public Builder copy() {
		return new Builder(this);
	}

	@Override /* Context */
	public UonParserSession.Builder createSession() {
		return UonParserSession.create(this);
	}

	@Override /* Context */
	public UonParserSession getSession() {
		return createSession().build();
	}

	@Override /* HttpPartParser */
	public UonParserSession getPartSession() {
		return UonParserSession.create(this).build();
	}

	/**
	 * Converts the specified input to the specified class type.
	 *
	 * @param <T> The POJO type to transform the input into.
	 * @param partType The part type being parsed.
	 * @param schema
	 * 	Schema information about the part.
	 * 	<br>May be <jk>null</jk>.
	 * 	<br>Not all part parsers use the schema information.
	 * @param in The input being parsed.
	 * @param toType The POJO type to transform the input into.
	 * @return The parsed value.
	 * @throws ParseException Malformed input encountered.
	 * @throws SchemaValidationException If the input or resulting HTTP part object fails schema validation.
	 */
	public <T> T parse(HttpPartType partType, HttpPartSchema schema, String in, ClassMeta<T> toType) throws ParseException, SchemaValidationException {
		return getPartSession().parse(partType, schema, in, toType);
	}

	/**
	 * Converts the specified input to the specified class type.
	 *
	 * @param <T> The POJO type to transform the input into.
	 * @param partType The part type being parsed.
	 * @param schema
	 * 	Schema information about the part.
	 * 	<br>May be <jk>null</jk>.
	 * 	<br>Not all part parsers use the schema information.
	 * @param in The input being parsed.
	 * @param toType The POJO type to transform the input into.
	 * @return The parsed value.
	 * @throws ParseException Malformed input encountered.
	 * @throws SchemaValidationException If the input or resulting HTTP part object fails schema validation.
	 */
	public <T> T parse(HttpPartType partType, HttpPartSchema schema, String in, Class<T> toType) throws ParseException, SchemaValidationException {
		return getPartSession().parse(partType, schema, in, getClassMeta(toType));
	}

	/**
	 * Converts the specified input to the specified class type.
	 *
	 * @param <T> The POJO type to transform the input into.
	 * @param partType The part type being parsed.
	 * @param schema
	 * 	Schema information about the part.
	 * 	<br>May be <jk>null</jk>.
	 * 	<br>Not all part parsers use the schema information.
	 * @param in The input being parsed.
	 * @param toType The POJO type to transform the input into.
	 * @param toTypeArgs The generic type arguments of the POJO type to transform the input into.
	 * @return The parsed value.
	 * @throws ParseException Malformed input encountered.
	 * @throws SchemaValidationException If the input or resulting HTTP part object fails schema validation.
	 */
	public <T> T parse(HttpPartType partType, HttpPartSchema schema, String in, Type toType, Type...toTypeArgs) throws ParseException, SchemaValidationException {
		return getPartSession().parse(partType, schema, in, getClassMeta(toType, toTypeArgs));
	}

	//-----------------------------------------------------------------------------------------------------------------
	// Extended metadata
	//-----------------------------------------------------------------------------------------------------------------

	@Override /* UonMetaProvider */
	public UonClassMeta getUonClassMeta(ClassMeta<?> cm) {
		UonClassMeta m = uonClassMetas.get(cm);
		if (m == null) {
			m = new UonClassMeta(cm, this);
			uonClassMetas.put(cm, m);
		}
		return m;
	}

	@Override /* UonMetaProvider */
	public UonBeanPropertyMeta getUonBeanPropertyMeta(BeanPropertyMeta bpm) {
		if (bpm == null)
			return UonBeanPropertyMeta.DEFAULT;
		UonBeanPropertyMeta m = uonBeanPropertyMetas.get(bpm);
		if (m == null) {
			m = new UonBeanPropertyMeta(bpm.getDelegateFor(), this);
			uonBeanPropertyMetas.put(bpm, m);
		}
		return m;
	}

	//-----------------------------------------------------------------------------------------------------------------
	// Properties
	//-----------------------------------------------------------------------------------------------------------------

	/**
	 * Decode <js>"%xx"</js> sequences enabled
	 *
	 * @see Builder#decoding()
	 * @return
	 * 	<jk>true</jk> if URI encoded characters should be decoded, <jk>false</jk> if they've already been decoded
	 * 	before being passed to this parser.
	 */
	protected final boolean isDecoding() {
		return decoding;
	}

	/**
	 * Validate end enabled.
	 *
	 * @see Builder#validateEnd()
	 * @return
	 * 	<jk>true</jk> if after parsing a POJO from the input, verifies that the remaining input in
	 * 	the stream consists of only comments or whitespace.
	 */
	protected final boolean isValidateEnd() {
		return validateEnd;
	}

	//-----------------------------------------------------------------------------------------------------------------
	// Other methods
	//-----------------------------------------------------------------------------------------------------------------

	@Override
	public <T> ClassMeta<T> getClassMeta(Class<T> c) {
		return getBeanContext().getClassMeta(c);
	}

	@Override
	public <T> ClassMeta<T> getClassMeta(Type t, Type... args) {
		return getBeanContext().getClassMeta(t, args);
	}

	@Override /* Context */
	protected JsonMap properties() {
		return filteredMap("decoding", decoding, "validateEnd", validateEnd);
	}
}
