dnet-applications/libs/dnet-apps-common/src/main/java/eu/dnetlib/common/app/AbstractDnetApp.java

109 lines
3.1 KiB
Java

package eu.dnetlib.common.app;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.annotation.PostConstruct;
import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.core.io.ClassPathResource;
import io.micrometer.core.instrument.ImmutableTag;
import io.micrometer.core.instrument.Metrics;
import io.micrometer.core.instrument.util.StringUtils;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.info.License;
import io.swagger.v3.oas.models.servers.Server;
import io.swagger.v3.oas.models.tags.Tag;
public abstract class AbstractDnetApp {
private static final String DEFAULT_VERSION = "1.1";
private static final String DEFAULT_DESC = "APIs documentation";
private static final License APACHE_2_LICENSE = new License().name("Apache 2.0").url("http://www.apache.org/licenses/LICENSE-2.0");
@Value("${maven.pom.path}")
private ClassPathResource pom;
@Value("${server.public_url}")
private String serverPublicUrl;
@Value("${server.public_desc}")
private String serverPublicDesc;
private static final Logger log = LoggerFactory.getLogger(AbstractDnetApp.class);
@PostConstruct
public void init() {
final MavenXpp3Reader reader = new MavenXpp3Reader();
try {
final Model model = reader.read(new InputStreamReader(pom.getInputStream()));
log.info(String.format("registering metric for %s", model.getArtifactId()));
final ImmutableTag tag1 = new ImmutableTag("component", model.getGroupId() + ":" + model.getArtifactId());
final ImmutableTag tag2 = new ImmutableTag("version", model.getVersion());
final ImmutableTag tag3 = new ImmutableTag("scmtag", model.getScm().getTag());
Metrics.gauge("micrometer_info", Arrays.asList(tag1, tag2, tag3), 1);
} catch (IOException | XmlPullParserException e) {
log.error("Error registering metric", e);
}
}
@Bean
public OpenAPI newSwaggerDocket() {
final List<Server> servers = new ArrayList<>();
if (StringUtils.isNotBlank(serverPublicUrl)) {
final Server server = new Server();
server.setUrl(serverPublicUrl);
server.setDescription(serverPublicDesc);
servers.add(server);
}
return new OpenAPI()
.servers(servers)
.info(getSwaggerInfo())
.tags(swaggerTags());
}
private Info getSwaggerInfo() {
return new Info()
.title(swaggerTitle())
.description(swaggerDesc())
.version(swaggerVersion())
.license(swaggerLicense());
}
protected abstract String swaggerTitle();
protected String swaggerDesc() {
return DEFAULT_DESC;
}
protected String swaggerVersion() {
return DEFAULT_VERSION;
}
protected License swaggerLicense() {
return APACHE_2_LICENSE;
}
protected List<Tag> swaggerTags() {
return new ArrayList<>();
}
}