UrlPrefixDocumentationProvider.java

package de.escalon.hypermedia.spring;

import de.escalon.hypermedia.affordance.ActionInputParameter;
import org.springframework.util.Assert;

import java.beans.Introspector;
import java.lang.reflect.Field;
import java.lang.reflect.Method;

/**
 * Provides documentation URLs by applying an URL prefix. Created by Dietrich on 27.04.2016.
 */
public class UrlPrefixDocumentationProvider implements DocumentationProvider {

    private String defaultUrlPrefix;

    public UrlPrefixDocumentationProvider(String defaultUrlPrefix) {
        Assert.isTrue(defaultUrlPrefix.endsWith("/") || defaultUrlPrefix.endsWith("#"), "URL prefix should end with " +
                "separator / or #");
        this.defaultUrlPrefix = defaultUrlPrefix;
    }

    public UrlPrefixDocumentationProvider() {
        defaultUrlPrefix = "";
    }

    @Override
    public String getDocumentationUrl(ActionInputParameter annotatedParameter, Object content) {
        return defaultUrlPrefix + annotatedParameter.getParameterName();
    }

    @Override
    public String getDocumentationUrl(Field field, Object content) {
        return defaultUrlPrefix + field.getName();
    }

    @Override
    public String getDocumentationUrl(Method getter, Object content) {
        String methodName = getter.getName();
        String propertyName = Introspector.decapitalize(methodName.substring(methodName.startsWith("is") ? 2 : 3));
        return defaultUrlPrefix + propertyName;
    }

    @Override
    public String getDocumentationUrl(Class clazz, Object content) {
        return defaultUrlPrefix + clazz.getSimpleName();
    }

    @Override
    public String getDocumentationUrl(String name, Object content) {
        return defaultUrlPrefix + name;
    }
}