damianwajser/spring-rest-commons-options

package com.github.damianwajser.model;

import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.JsonGetter;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import com.github.damianwajser.model.body.Body;
import com.github.damianwajser.model.body.BodyRequest;
import com.github.damianwajser.model.body.BodyResponse;
import com.github.damianwajser.model.header.Header;
import com.github.damianwajser.utils.ReflectionUtils;

@JsonAutoDetect(fieldVisibility = Visibility.ANY)
@JsonPropertyOrder({ "endpoint", "httpMethod", "baseUrl", "relativeUrl" })
public class Endpoint implements Comparable<Endpoint> {
    private static final Logger LOGGER = LoggerFactory.getLogger(Endpoint.class);
    private QueryString queryString;

    private PathVariable pathVariable;
    @JsonIgnore
    private RequestHttpMethod methods;
    @JsonIgnore
    private String baseUrl;
    private String relativeUrl;
    private BodyRequest bodyRequest;
    private BodyResponse bodyResponse;
    private List<Header> headers;

    public Endpoint() {
    }

    public Endpoint(String relativeUrl, Method m, Object controller) {
        this.baseUrl = fillBaseUrl(controller);
        this.setRelativeUrl(relativeUrl);
        this.setPathVariable(new PathVariable(m, this.getRelativeUrl()));
        this.methods = new RequestHttpMethod(m);
        this.queryString = new QueryString(m);
        this.setBodyRequest(new BodyRequest(m, controller.getClass()));
        this.setBodyResponse(new BodyResponse(m, controller.getClass()));
        headers = new ArrayList<>();
        ReflectionUtils.getHeaders(m).forEach(h -> {
            LOGGER.debug("obteniendo el header: {}", h);
            RequestHeader rh = h.getDeclaredAnnotationsByType(RequestHeader.class)[0];
            headers.add(new Header(rh.value(), h.getType().getSimpleName()));
        });
    }

    private String fillBaseUrl(Object controller) {
        String[] urls = getUrls(controller).orElse(new String[] { "/" });
        String url;
        if (urls.length > 0) {
            url = urls[0];
        } else {
            url = "/";
        }
        return url;
    }

    private Optional<String[]> getUrls(Object controller) {
        return Optional.ofNullable(
                (String[]) AnnotationUtils.getValue(controller.getClass().getAnnotation(RequestMapping.class)));
    }

    public String getHttpMethod() {
        return this.methods == null || this.methods.getHttpMethod().length == 0 ? ""
                : this.methods.getHttpMethod()[0].name();
    }

    public QueryString getQueryString() {
        return queryString;
    }

    public String getBaseUrl() {
        return baseUrl;
    }

    public String getRelativeUrl() {
        return relativeUrl;
    }

    public void setRelativeUrl(String relativeUrl) {
        this.relativeUrl = relativeUrl;
    }

    @JsonGetter("endpoint")
    public String getEndpoint() {
        return this.getHttpMethod() + " - " + this.getUrl()
                + (queryString.toString().isEmpty() ? "" : "?" + queryString);
    }

    public BodyRequest getBodyRequest() {
        return bodyRequest;
    }

    public void setBodyRequest(BodyRequest bodyRequest) {
        this.bodyRequest = bodyRequest;
    }

    public Body getBodyResponse() {
        return bodyResponse;
    }

    public void setBodyResponse(BodyResponse bodyResponse) {
        this.bodyResponse = bodyResponse;
    }

    public PathVariable getPathVariable() {
        return pathVariable;
    }

    public void setPathVariable(PathVariable pathVariable) {
        this.pathVariable = pathVariable;
    }

    @Override
    public String toString() {
        return ToStringBuilder.reflectionToString(this, ToStringStyle.MULTI_LINE_STYLE);
    }

    @Override
    public boolean equals(Object obj) {
        return EqualsBuilder.reflectionEquals(this, obj, true);
    }

    @Override
    public int hashCode() {
        return HashCodeBuilder.reflectionHashCode(this, true);
    }

    @Override
    public int compareTo(Endpoint o) {
        return this.getEndpoint().compareTo(o.getEndpoint());
    }

    public List<Header> getHeaders() {
        return headers;
    }

    public void setHeaders(List<Header> headers) {
        this.headers = headers;
    }

    public String getUrl() {
        return this.getBaseUrl() + this.getRelativeUrl();
    }
}