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Copyright 2005-2013 The Kuali Foundation Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php 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.kuali.rice.kew.util;
Looks up Strings from the Config and System Parameters.

Author(s):
Kuali Rice Team (rice.collab@kuali.org)
public class ConfigStringLookup extends StrLookup {
	private final String applicationId;
	public ConfigStringLookup() {
        this(null);
	}
	public ConfigStringLookup(String applicationId) {
		this. = applicationId;
	}
    @Override
    public String lookup(String propertyName) {
        if (StringUtils.isBlank(propertyName)) {
            return null;
        }
        String paramValue = null;
        // check system parameters first
        if (StringUtils.isBlank()) {
            paramValue = CoreFrameworkServiceLocator.getParameterService().getParameterValueAsString(
                    ...propertyName);
        } else {
            ParameterKey parameterKey = ParameterKey.create(.,
                    ..propertyName);
            paramValue = CoreServiceApiServiceLocator.getParameterRepositoryService().getParameterValueAsString(parameterKey);
        }
        if (paramValue == null) {
            paramValue = ConfigContext.getCurrentContextConfig().getProperty(propertyName);
        }
        return paramValue;
    }
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