QuartzKeyValueAccessor.java

/**
 * Copyright (c) 2009-2011 VMware, Inc. All Rights Reserved.
 *
 * 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 com.springsource.insight.plugin.quartz.scheduler;

import com.springsource.insight.util.StringUtil;

/**
 *
 */
public final class QuartzKeyValueAccessor extends AbstractQuartzValueAccessor {
    private static class LazyFieldHolder {
        static final QuartzKeyValueAccessor accessor = new QuartzKeyValueAccessor();
    }

    public static QuartzKeyValueAccessor getInstance() {
        return LazyFieldHolder.accessor;
    }

    QuartzKeyValueAccessor() {
        super("org.quartz.utils.Key");
    }

    public String getFullName(Object key) {
        String group = getGroup(key), name = getName(key);
        if (StringUtil.isEmpty(group)) {
            if (StringUtil.isEmpty(name)) {
                return "";
            } else {
                return name;
            }
        } else if (StringUtil.isEmpty(name)) {
            return group;
        } else {    // both non-empty
            return group + "." + name;
        }
    }

    public String getGroup(Object key) {
        return getKeyValue(key, "group");
    }

    public String getName(Object key) {
        return getKeyValue(key, "name");
    }

    private String getKeyValue(Object key, String name) {
        return getProperty(key, name, String.class);
    }
}