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Inversion of Control Framework for Android
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package net.sf.andromedaioc.context.builder;

import android.content.Context;
import net.sf.andromedaioc.bean.wrapper.BeanWrapper;
import net.sf.andromedaioc.bean.BeanWrapperCreatorFactory;
import net.sf.andromedaioc.context.AndromedaContext;
import net.sf.andromedaioc.context.AndromedaContextImpl;
import net.sf.andromedaioc.model.beans.BeanModel;
import net.sf.andromedaioc.model.beans.ContextModel;
import net.sf.andromedaioc.model.beans.ReferenceKey;
import net.sf.andromedaioc.model.builder.BasicModelBuilder;
import net.sf.andromedaioc.resource.ResourceProvider;
import net.sf.andromedaioc.resource.ResourceProviderImpl;
import net.sf.andromedaioc.util.BeanUtils;

import java.util.*;

/**
 * Build andromeda context
 *
 * @author Alexey Mitrov
 */
public class ContextBuilder {

    private final Context context;
    private ResourceProvider resourceProvider;
    private String xmlContexts;
    private String scanPackages;
    private String propertiesFiles;

    /**
     * Create andromeda context builder
     * @param context android context
     */
    public ContextBuilder(Context context) {
        this.context = context;
    }

    /**
     * Build andromeda context
     * @return andromeda context
     * @throws Exception
     */
    public AndromedaContext build() throws Exception {
        resourceProvider = new ResourceProviderImpl(context, Collections.emptyList(), BeanUtils.splitAndTrimCSV(propertiesFiles));
        ContextModel contextModel = getModel();
        Map beans = createBeans(contextModel);
        return new AndromedaContextImpl(beans, resourceProvider);
    }

    /**
     * Use this method to set xml context files
     * @param xmlResources coma separated list of xml files
     * @return context builder
     */
    public ContextBuilder withXmlResource(String xmlResources) {
        this.xmlContexts = xmlResources;
        return this;
    }

    /**
     * Use this method to set scan packages with annotated beans you want to be added to context
     * @param scanPackages coma separated packages. All sub packages of provided packages will be scanned too
     * @return context builder
     */
    public ContextBuilder withScanPackages(String scanPackages) {
        this.scanPackages = scanPackages;
        return this;
    }

    /**
     * Use this method to set properties files
     * @param propertiesFiles list of comma separated properties files
     * @return
     */
    public ContextBuilder withPropertiesFiles(String propertiesFiles) {
        this.propertiesFiles = propertiesFiles;
        return this;
    }

    private ContextModel getModel() throws Exception {
        return (new BasicModelBuilder())
                .withResourceProviderFactory(resourceProvider)
                .withXmlContext(xmlContexts)
                .withScanPackages(scanPackages)
                .build();
    }

    private Map createBeans(ContextModel contextModel) throws Exception {
        Map beans = new HashMap();
        for(Map.Entry entry : contextModel.getBeans().entrySet()) {
            BeanModel beanModel = entry.getValue();
            BeanWrapper bean = BeanWrapperCreatorFactory.getBeanCreator(beanModel, beans, resourceProvider).createWrapper();
            beans.put(entry.getKey(), bean);
        }
        return beans;
    }
}