modules/core/src/main/java/org/apache/ignite/internal/processors/resource/GridResourceLoggerInjector.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.ignite.internal.processors.resource;

import org.apache.ignite.IgniteCheckedException;
import org.apache.ignite.IgniteLogger;
import org.apache.ignite.internal.managers.deployment.GridDeployment;
import org.apache.ignite.resources.LoggerResource;

/**
 *
 */
public class GridResourceLoggerInjector extends GridResourceBasicInjector<IgniteLogger> {
    /**
     * @param rsrc Root logger.
     */
    public GridResourceLoggerInjector(IgniteLogger rsrc) {
        super(rsrc);
    }

    /** {@inheritDoc} */
    @Override public void inject(GridResourceField field, Object target, Class<?> depCls, GridDeployment dep)
        throws IgniteCheckedException {
        GridResourceUtils.inject(field.getField(), target, resource((LoggerResource)field.getAnnotation(), target));
    }

    /** {@inheritDoc} */
    @Override public void inject(GridResourceMethod mtd, Object target, Class<?> depCls, GridDeployment dep)
        throws IgniteCheckedException {
        GridResourceUtils.inject(mtd.getMethod(), target, resource((LoggerResource)mtd.getAnnotation(), target));
    }

    /**
     * @param ann Annotation.
     * @param target Target.
     * @return Logger.
     */
    @SuppressWarnings("IfMayBeConditional")
    private IgniteLogger resource(LoggerResource ann, Object target) {
        Class<?> cls = ann.categoryClass();
        String cat = ann.categoryName();

        IgniteLogger rsrc = getResource();

        if (cls != null && cls != Void.class)
            rsrc = rsrc.getLogger(cls);
        else if (cat != null && !cat.isEmpty())
            rsrc = rsrc.getLogger(cat);
        else
            rsrc = rsrc.getLogger(target.getClass());

        return rsrc;
    }
}