SpringJsonHomeGenerator.java

/*
 * Copyright 2012 Guido Steinacker
 *
 * Licensed 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 de.otto.jsonhome.generator;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Controller;

import javax.annotation.PostConstruct;
import java.net.URI;

import static org.springframework.core.annotation.AnnotationUtils.findAnnotation;

/**
 * A JsonHomeGenerator used to generate JsonHome objects for Spring-based applications.
 *
 * @author Guido Steinacker
 * @since 17.10.12
 */
@Component
public final class SpringJsonHomeGenerator extends JsonHomeGenerator {

    private URI applicationBaseUri;
    private URI relationTypeBaseUri;
    private URI varTypeBaseUri;
    private String docRootDir;

    @Value("${jsonhome.applicationBaseUri}")
    public void setApplicationBaseUri(final String applicationBaseUri) {
        this.applicationBaseUri = URI.create(applicationBaseUri);
    }

    @Value("${jsonhome.relationTypeBaseUri}")
    public void setRelationTypeBaseUri(final String relationTypeBaseUri) {
        this.relationTypeBaseUri = URI.create(relationTypeBaseUri);
    }

    @Value("${jsonhome.varTypeBaseUri}")
    public void setVarTypeBaseUri(final String varTypeBaseUri) {
        if (varTypeBaseUri != null && !varTypeBaseUri.isEmpty()) {
            this.varTypeBaseUri = URI.create(varTypeBaseUri);
        }
    }

    @Value("${jsonhome.docRootDir}")
    public void setDocRootDir(String docRootDir) {
        this.docRootDir = docRootDir;
    }

    @PostConstruct
    public void postConstruct() {
        setResourceLinkGenerator(new SpringResourceLinkGenerator(
                applicationBaseUri,
                relationTypeBaseUri,
                varTypeBaseUri,
                docRootDir)
        );
    }

    @Override
    protected boolean isCandidateForAnalysis(final Class<?> controller) {
        return findAnnotation(controller, Controller.class) != null;
    }

}