/
StubDownloaderBuilderProvider.java
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/
StubDownloaderBuilderProvider.java
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package org.springframework.cloud.contract.stubrunner;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cloud.contract.stubrunner.spring.StubRunnerProperties;
import org.springframework.core.io.support.SpringFactoriesLoader;
/**
* Provider for {@link StubDownloaderBuilder}. It can also pick a default
* downloader if none is provided
*
* @author Marcin Grzejszczak
* @since 1.1.0
*/
public class StubDownloaderBuilderProvider {
private static final Log log = LogFactory.getLog(MethodHandles.lookup().lookupClass());
private final List<StubDownloaderBuilder> builders = new ArrayList<>();
public StubDownloaderBuilderProvider() {
this.builders.addAll(
SpringFactoriesLoader.loadFactories(StubDownloaderBuilder.class, null));
}
public StubDownloaderBuilder get() {
return this.builders.isEmpty() ? null : this.builders.get(0);
}
/**
* If a {@link StubDownloaderBuilder} is present will build a {@link StubDownloader} from it.
* If not will return the defaults basing on the {@link StubRunnerOptions} values
*/
public StubDownloader getOrDefaultDownloader(StubRunnerOptions stubRunnerOptions) {
if (hasBuilder()) {
log.info("A custom Stub Downloader was passed - will pick [" + get() + "]");
return get().build(stubRunnerOptions);
}
if (stubRunnerOptions.stubsMode == StubRunnerProperties.StubsMode.CLASSPATH) {
log.info("Classpath scanning will be used due to passed properties");
return new ClasspathStubProvider().build(stubRunnerOptions);
}
log.info("Will download stubs using Aether");
return new AetherStubDownloader(stubRunnerOptions);
}
public boolean hasBuilder() {
return get() != null;
}
}