jetbrick.ioc.objects.UninitialedObject Maven / Gradle / Ivy

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/**
 * Copyright 2013-2014 Guoqiang Chen, Shanghai, China. All rights reserved.
 *
 * Email: [email protected]
 * URL: http://subchen.github.io/
 *
 * 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
 *
 *   http://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 jetbrick.ioc.objects;

import java.lang.reflect.Method;
import java.util.List;
import jetbrick.beans.introspectors.ClassDescriptor;
import jetbrick.io.config.Configuration;
import jetbrick.ioc.Ioc;
import jetbrick.ioc.injectors.FieldInjector;
import jetbrick.ioc.injectors.PropertyInjector;

public class UninitialedObject implements IocObject {
    private final Ioc ioc;
    private final Object object;
    private Configuration properties;

    public UninitialedObject(Ioc ioc, Object object, Configuration properties) {
        this.ioc = ioc;
        this.object = object;
        this.properties = properties;
    }

    @Override
    public Object getObject() {
        try {
            return doGetObject();
        } catch (RuntimeException e) {
            return e;
        } catch (Exception e) {
            return new RuntimeException(e);
        }
    }

    private Object doGetObject() throws Exception {
        ClassDescriptor meta = ClassDescriptor.lookup(object.getClass());
        List fieldInjectors = IocObjectUtils.doGetFieldInjectors(ioc, meta);
        List propertyInjectors = IocObjectUtils.doGetPropertyInjectors(ioc, meta, properties);
        Method initializeMethod = IocObjectUtils.doGetInitializeMethod(meta);
        properties = null;

        for (PropertyInjector injector : propertyInjectors) {
            injector.set(object);
        }
        for (FieldInjector injector : fieldInjectors) {
            injector.set(object);
        }

        if (initializeMethod != null) {
            initializeMethod.invoke(object, (Object[]) null);
        }

        return object;
    }
}