org.mule.runtime.config.internal.LazyMetadataService Maven / Gradle / Ivy
/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.runtime.config.internal;
import static java.util.Optional.empty;
import static java.util.Optional.of;
import static org.mule.runtime.api.exception.ExceptionHelper.getRootException;
import static org.mule.runtime.api.metadata.resolving.FailureCode.COMPONENT_NOT_FOUND;
import static org.mule.runtime.api.metadata.resolving.MetadataFailure.Builder.newFailure;
import static org.mule.runtime.api.metadata.resolving.MetadataResult.failure;
import org.mule.runtime.api.component.location.Location;
import org.mule.runtime.api.lifecycle.Initialisable;
import org.mule.runtime.api.lifecycle.InitialisationException;
import org.mule.runtime.api.meta.model.operation.OperationModel;
import org.mule.runtime.api.meta.model.source.SourceModel;
import org.mule.runtime.api.metadata.MetadataKey;
import org.mule.runtime.api.metadata.MetadataKeysContainer;
import org.mule.runtime.api.metadata.MetadataService;
import org.mule.runtime.api.metadata.descriptor.ComponentMetadataDescriptor;
import org.mule.runtime.api.metadata.descriptor.TypeMetadataDescriptor;
import org.mule.runtime.api.metadata.resolving.MetadataFailure;
import org.mule.runtime.api.metadata.resolving.MetadataResult;
import org.mule.runtime.config.internal.dsl.model.NoSuchComponentModelException;
import java.util.Optional;
import java.util.function.Supplier;
/**
* {@link MetadataService} implementation that initialises the required components before doing test connectivity.
*
* This guarantees that if the application has been created lazily, the requested components exists before the execution of the
* actual {@link MetadataService}.
*
* @since 4.0
*/
public class LazyMetadataService implements MetadataService, Initialisable {
public static final String NON_LAZY_METADATA_SERVICE = "_muleNonLazyMetadataService";
private final LazyMuleArtifactContext lazyMuleArtifactContext;
private final Supplier metadataServiceSupplier;
private MetadataService metadataService;
public LazyMetadataService(LazyMuleArtifactContext lazyMuleArtifactContext, Supplier metadataServiceSupplier) {
this.lazyMuleArtifactContext = lazyMuleArtifactContext;
this.metadataServiceSupplier = metadataServiceSupplier;
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult getMetadataKeys(Location location) {
return (MetadataResult) initializeComponent(location)
.orElseGet(() -> metadataService.getMetadataKeys(location));
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult> getOperationMetadata(Location location) {
return (MetadataResult>) initializeComponent(location)
.orElseGet(() -> metadataService.getOperationMetadata(location));
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult> getOperationMetadata(Location location,
MetadataKey key) {
return (MetadataResult>) initializeComponent(location)
.orElseGet(() -> metadataService.getOperationMetadata(location, key));
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult> getSourceMetadata(Location location) {
return (MetadataResult>) initializeComponent(location)
.orElseGet(() -> metadataService.getSourceMetadata(location));
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult> getSourceMetadata(Location location, MetadataKey key) {
return (MetadataResult>) initializeComponent(location)
.orElseGet(() -> metadataService.getSourceMetadata(location, key));
}
/**
* {@inheritDoc}
*/
@Override
public void disposeCache(String id) {
metadataService.disposeCache(id);
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult getEntityKeys(Location location) {
return (MetadataResult) initializeComponent(location)
.orElseGet(() -> metadataService.getEntityKeys(location));
}
/**
* {@inheritDoc}
*/
@Override
public MetadataResult getEntityMetadata(Location location, MetadataKey key) {
return (MetadataResult) initializeComponent(location)
.orElseGet(() -> metadataService.getEntityMetadata(location, key));
}
private Optional> initializeComponent(Location location) {
try {
lazyMuleArtifactContext.initializeComponent(location, false);
} catch (Exception e) {
Throwable rootCause = getRootException(e);
MetadataFailure.Builder builder = newFailure(e).withMessage(rootCause.getMessage());
if (rootCause instanceof NoSuchComponentModelException) {
builder.withFailureCode(COMPONENT_NOT_FOUND);
}
return of(failure(builder.onComponent()));
}
return empty();
}
@Override
public void initialise() throws InitialisationException {
this.metadataService = metadataServiceSupplier.get();
}
}