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JaVers - object auditing and diff framework for Java
package org.javers.core;
import org.javers.common.exception.JaversException;
import org.javers.common.exception.JaversExceptionCode;
import org.javers.core.pico.InstantiatingModule;
import org.javers.core.pico.JaversModule;
import org.picocontainer.DefaultPicoContainer;
import org.picocontainer.MutablePicoContainer;
import org.picocontainer.behaviors.Caching;
import java.util.List;
/**
* @author bartosz walacik
*/
public abstract class AbstractContainerBuilder {
private MutablePicoContainer container;
protected T getContainerComponent(Class ofClass) {
checkIfBuilt();
return container.getComponent(ofClass);
}
protected void bootContainer() {
container = new DefaultPicoContainer(new Caching());
}
protected void addModule(InstantiatingModule module) {
checkIfBuilt();
module.instantiateAndBindComponents();
}
protected void addModule(JaversModule module) {
checkIfBuilt();
for (Class component : module.getComponents()) {
addComponent(component);
}
}
protected List getComponents(Class ofClass){
checkIfBuilt();
return container.getComponents(ofClass);
}
protected MutablePicoContainer getContainer() {
return container;
}
protected void addComponent(Object classOrInstance) {
checkIfBuilt();
container.addComponent(classOrInstance);
}
protected void bindComponent(Object componentKey, Object implementationOrInstance) {
checkIfBuilt();
container.addComponent(componentKey, implementationOrInstance);
}
protected void removeComponent(Object classOrInstance) {
checkIfBuilt();
container.removeComponent(classOrInstance);
}
private void checkIfNotBuilt() {
if (isBuilt()) {
throw new JaversException(JaversExceptionCode.ALREADY_BUILT);
}
}
private void checkIfBuilt() {
if (!isBuilt()) {
throw new JaversException(JaversExceptionCode.CONTAINER_NOT_READY);
}
}
private boolean isBuilt() {
return container != null;
}
}