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AbstractMetadataDelegate.java
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AbstractMetadataDelegate.java
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/* Copyright 2011 Vladimir Schaefer
*
* 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
*
* https://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 org.springframework.security.saml.metadata;
import org.opensaml.saml2.metadata.EntitiesDescriptor;
import org.opensaml.saml2.metadata.EntityDescriptor;
import org.opensaml.saml2.metadata.RoleDescriptor;
import org.opensaml.saml2.metadata.provider.*;
import org.opensaml.xml.XMLObject;
import org.springframework.util.Assert;
import javax.xml.namespace.QName;
import java.util.LinkedList;
import java.util.List;
/**
* Class wraps an existing provider and delegates all method calls to it. Subclasses can thus add additional functionality
* to existing implementations.
*
* @author Vladimir Schaefer
*/
public abstract class AbstractMetadataDelegate implements ObservableMetadataProvider {
/**
* Wrapped entity the calls are delegated to.
*/
private MetadataProvider delegate;
/**
* Observers, loaded from the provider.
*/
List<Observer> observers;
/**
* Default constructor assigning the delegate. In case the provider implements observable interface the observation
* of this instance is delegated as well, otherwise an empty independent list of observers is created.
*
* @param delegate delegate to use, can't be null
*/
public AbstractMetadataDelegate(MetadataProvider delegate) {
Assert.notNull(delegate, "Delegate can't be null");
this.delegate = delegate;
if (delegate instanceof ObservableMetadataProvider) {
observers = ((ObservableMetadataProvider) delegate).getObservers();
} else {
observers = new LinkedList<Observer>();
}
}
public boolean requireValidMetadata() {
return delegate.requireValidMetadata();
}
public void setRequireValidMetadata(boolean requireValidMetadata) {
delegate.setRequireValidMetadata(requireValidMetadata);
}
public MetadataFilter getMetadataFilter() {
return delegate.getMetadataFilter();
}
public void setMetadataFilter(MetadataFilter newFilter) throws MetadataProviderException {
delegate.setMetadataFilter(newFilter);
}
public XMLObject getMetadata() throws MetadataProviderException {
return delegate.getMetadata();
}
public EntitiesDescriptor getEntitiesDescriptor(String name) throws MetadataProviderException {
return delegate.getEntitiesDescriptor(name);
}
public EntityDescriptor getEntityDescriptor(String entityID) throws MetadataProviderException {
return delegate.getEntityDescriptor(entityID);
}
public List<RoleDescriptor> getRole(String entityID, QName roleName) throws MetadataProviderException {
return delegate.getRole(entityID, roleName);
}
public RoleDescriptor getRole(String entityID, QName roleName, String supportedProtocol) throws MetadataProviderException {
return delegate.getRole(entityID, roleName, supportedProtocol);
}
public List<Observer> getObservers() {
return observers;
}
/**
* @return original object the calls are delegated to
*/
public MetadataProvider getDelegate() {
return delegate;
}
/**
* Equality is based on the object this class delegates to.
* @param obj object
* @return true when obj equals delegate, in case obj is a wrapper itself only its delegate is compared
*/
@Override
public boolean equals(Object obj) {
if (obj instanceof ExtendedMetadataDelegate) {
ExtendedMetadataDelegate del = (ExtendedMetadataDelegate) obj;
return delegate.equals(del.getDelegate());
} else {
return false;
}
}
@Override
public int hashCode() {
return delegate.hashCode();
}
}