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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.bundle;
import com.yahoo.component.ComponentId;
import com.yahoo.component.ComponentSpecification;
/**
* Specifies how a component should be instantiated from a bundle.
*
* Immutable
*
* @author Tony Vaagenes
*/
public final class BundleInstantiationSpecification {
public final ComponentId id;
public final ComponentSpecification classId;
public final ComponentSpecification bundle;
public BundleInstantiationSpecification(ComponentSpecification id, ComponentSpecification classId, ComponentSpecification bundle) {
this.id = id.toId();
this.classId = (classId != null) ? classId : id.withoutNamespace();
this.bundle = (bundle != null) ? bundle : this.classId;
}
// Must only be used when classId != null, otherwise the id must be handled as a ComponentSpecification
// (since converting a spec string to a ComponentId and then to a ComponentSpecification causes loss of information).
public BundleInstantiationSpecification(ComponentId id, ComponentSpecification classId, ComponentSpecification bundle) {
this(id.toSpecification(), classId, bundle);
assert (classId!= null);
}
private static final String defaultInternalBundle = "container-search-and-docproc";
private static BundleInstantiationSpecification getInternalSpecificationFromString(String idSpec, String classSpec) {
return new BundleInstantiationSpecification(
new ComponentSpecification(idSpec),
(classSpec == null || classSpec.isEmpty())? null : new ComponentSpecification(classSpec),
new ComponentSpecification(defaultInternalBundle));
}
public static BundleInstantiationSpecification getInternalSearcherSpecification(ComponentSpecification idSpec,
ComponentSpecification classSpec) {
return new BundleInstantiationSpecification(idSpec, classSpec, new ComponentSpecification(defaultInternalBundle));
}
// TODO: These are the same for now because they are in the same bundle.
public static BundleInstantiationSpecification getInternalHandlerSpecificationFromStrings(String idSpec, String classSpec) {
return getInternalSpecificationFromString(idSpec, classSpec);
}
public static BundleInstantiationSpecification getInternalProcessingSpecificationFromStrings(String idSpec, String classSpec) {
return getInternalSpecificationFromString(idSpec, classSpec);
}
public static BundleInstantiationSpecification getInternalSearcherSpecificationFromStrings(String idSpec, String classSpec) {
return getInternalSpecificationFromString(idSpec, classSpec);
}
public static BundleInstantiationSpecification getFromStrings(String idSpec, String classSpec, String bundleSpec) {
return new BundleInstantiationSpecification(
new ComponentSpecification(idSpec),
(classSpec == null || classSpec.isEmpty())? null : new ComponentSpecification(classSpec),
(bundleSpec == null || bundleSpec.isEmpty())? null : new ComponentSpecification(bundleSpec));
}
/**
* Return a new instance of the specification with bundle name altered
*
* @param bundleName the new name of the bundle
* @return the new instance of the specification
*/
public BundleInstantiationSpecification inBundle(String bundleName) {
return new BundleInstantiationSpecification(this.id, this.classId, new ComponentSpecification(bundleName));
}
public String getClassName() {
return classId.getName();
}
public BundleInstantiationSpecification nestInNamespace(ComponentId namespace) {
return new BundleInstantiationSpecification(id.nestInNamespace(namespace), classId, bundle);
}
}
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