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// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.madvoc.component;
import jodd.madvoc.MadvocException;
import jodd.madvoc.scope.MadvocScope;
import jodd.madvoc.scope.RequestScope;
import jodd.petite.PetiteContainer;
import jodd.petite.meta.PetiteInject;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;
/**
* Scope resolver maintains scope instances and provides lookups.
*/
public class ScopeResolver {
@PetiteInject
protected PetiteContainer madpc;
protected List allScopes = new ArrayList<>();
/**
* Lookups the scope instance of given scope annotation.
* If instance does not exist, it will be created, cached and returned.
*/
@SuppressWarnings("unchecked")
public S defaultOrScopeType(final Class scopeClass) {
if (scopeClass == null) {
return (S) getOrInitScope(RequestScope.class);
}
return (S) getOrInitScope(scopeClass);
}
/**
* Performs search for the scope class and returns it's instance.
*/
protected MadvocScope getOrInitScope(final Class madvocScopeType) {
for (final MadvocScope s : allScopes) {
if (s.getClass().equals(madvocScopeType)) {
return s;
}
}
// new scope detected
final MadvocScope newScope;
try {
newScope = madpc.createBean(madvocScopeType);
} catch (Exception ex) {
throw new MadvocException("Unable to create scope: " + madvocScopeType, ex);
}
allScopes.add(newScope);
return newScope;
}
// ---------------------------------------------------------------- iteration
/**
* Iterates over all scope instances.
*/
public void forEachScope(final Consumer madvocScopeConsumer) {
allScopes.forEach(madvocScopeConsumer);
}
/**
* Finds a given scope and consumes it.
*/
public void forScope(final Class scopeType, final Consumer madvocScopeConsumer) {
final MadvocScope scope = getOrInitScope(scopeType);
madvocScopeConsumer.accept(scope);
}
}