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jBasics is a collection of useful utility classes for Java. This includes helper for XML, mathematic functions, restful web services helper, pattern oriented programming interfaces and more. Currently Java7 and up is supported. Version 1.0 will required at leaset Java8.

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/*
 * Copyright (c) 2009-2015
 * 	IT-Consulting Stephan Schloepke (http://www.schloepke.de/)
 * 	klemm software consulting Mirko Klemm (http://www.klemm-scs.com/)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.jbasics.parser;

import org.jbasics.checker.ContractCheck;
import org.jbasics.parser.invoker.Invoker;
import org.jbasics.pattern.builder.Builder;
import org.jbasics.pattern.factory.Factory;
import org.jbasics.types.tuples.Pair;

import javax.xml.namespace.QName;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;

@SuppressWarnings("unchecked")
public class ParsingInfoBuilder implements Builder {
	private Class builderType;
	private Factory builderFactory;
	private Invoker qualifiedNameInvoker;
	private Map> attributeInvokers;
	private Invoker anyAttributeInvoker;
	private Map>> elementInvokers;
	private Pair> anyElementInvoker;
	private Invoker contentInvoker;
	private Invoker commentInvoker;

	public static ParsingInfoBuilder newInstance() {
		return new ParsingInfoBuilder();
	}

	public void reset() {
		this.builderType = null;
		this.builderFactory = null;
		this.qualifiedNameInvoker = null;
		if (this.attributeInvokers != null) {
			this.attributeInvokers.clear();
		}
		this.anyAttributeInvoker = null;
		if (this.elementInvokers != null) {
			this.elementInvokers.clear();
		}
		this.anyElementInvoker = null;
		this.contentInvoker = null;
		this.commentInvoker = null;
	}

	public ParsingInfo build() {
		Map> attributes;
		if (this.attributeInvokers == null) {
			attributes = Collections.emptyMap();
		} else {
			attributes = new LinkedHashMap>();
			attributes.putAll(this.attributeInvokers);
			attributes = Collections.unmodifiableMap(attributes);
		}
		Map>> elements;
		if (this.elementInvokers == null) {
			elements = Collections.emptyMap();
		} else {
			elements = new LinkedHashMap>>();
			elements.putAll(this.elementInvokers);
			elements = Collections.unmodifiableMap(elements);
		}
		return new ParsingInfo(this.builderFactory, this.qualifiedNameInvoker, attributes, this.anyAttributeInvoker,
				elements, this.anyElementInvoker, this.contentInvoker, this.commentInvoker);
	}

	public ParsingInfoBuilder setBuilderFactory(Factory builderFactory) {
		this.builderFactory = ContractCheck.mustNotBeNull(builderFactory, "builderFactory");
		return this;
	}

	public ParsingInfoBuilder addAttribute(QName name, Invoker invoker) {
		if (this.attributeInvokers == null) {
			this.attributeInvokers = new LinkedHashMap>();
		}
		if (!this.attributeInvokers.containsKey(ContractCheck.mustNotBeNull(name, "name"))) {
			this.attributeInvokers.put(name, ContractCheck.mustNotBeNull(invoker, "metthod"));
		} else {
			throw new IllegalStateException("Attribute method for " + name + " already set to "
					+ this.attributeInvokers.get(name) + ". Duplicate " + invoker);
		}
		return this;
	}

	public ParsingInfoBuilder setAnyAttribute(Invoker invoker) {
		if (this.anyAttributeInvoker != null) {
			throw new IllegalStateException("Any Attribute Invoker already set to " + this.anyAttributeInvoker
					+ ". Duplicate " + invoker);
		}
		this.anyAttributeInvoker = ContractCheck.mustNotBeNull(invoker, "invoker");
		return this;
	}

	public ParsingInfoBuilder addElement(QName name, Pair> invoker) {
		if (this.elementInvokers == null) {
			this.elementInvokers = new LinkedHashMap>>();
		}
		if (!this.elementInvokers.containsKey(ContractCheck.mustNotBeNull(name, "name"))) {
			this.elementInvokers.put(name, ContractCheck.mustNotBeNull(invoker, "metthod"));
		} else {
			throw new IllegalStateException("Invoker for " + name + " already set to " + this.elementInvokers.get(name)
					+ ". Duplicate " + invoker);
		}
		return this;
	}

	public ParsingInfoBuilder setAnyElement(Pair> invoker) {
		if (this.anyElementInvoker != null) {
			throw new IllegalStateException("Any Element Method already set to " + this.anyElementInvoker
					+ ". Duplicate " + invoker);
		}
		this.anyElementInvoker = ContractCheck.mustNotBeNull(invoker, "invoker");
		return this;
	}

	public ParsingInfoBuilder setQualifiedName(Invoker invoker) {
		if (this.qualifiedNameInvoker != null) {
			throw new IllegalStateException("Qualified Name Method already set to " + this.qualifiedNameInvoker
					+ ". Duplicate " + invoker);
		}
		this.qualifiedNameInvoker = ContractCheck.mustNotBeNull(invoker, "invoker");
		return this;
	}

	public ParsingInfoBuilder setContentInvoker(Invoker invoker) {
		if (this.contentInvoker != null) {
			throw new IllegalStateException("Content invoker already set to " + this.qualifiedNameInvoker
					+ ". Duplicate " + invoker);
		}
		this.contentInvoker = ContractCheck.mustNotBeNull(invoker, "invoker");
		return this;
	}

	public ParsingInfoBuilder setCommentInvoker(Invoker invoker) {
		if (this.commentInvoker != null) {
			throw new IllegalStateException("Comment invoker already set to " + this.qualifiedNameInvoker
					+ ". Duplicate " + invoker);
		}
		this.commentInvoker = ContractCheck.mustNotBeNull(invoker, "invoker");
		return this;
	}

	public Class getBuilderType() {
		return this.builderType;
	}

	public ParsingInfoBuilder setBuilderType(Class builderType) {
		this.builderType = builderType;
		return this;
	}
}