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/*-
* ============LICENSE_START=======================================================
* onap
* ================================================================================
* Copyright (C) 2016 - 2017 ONAP
* ================================================================================
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.ccsdk.sli.core.utils.common;
import java.io.File;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Optional;
import org.onap.ccsdk.sli.core.utils.PropertiesFileResolver;
import org.osgi.framework.FrameworkUtil;
import org.slf4j.LoggerFactory;
import com.google.common.base.Strings;
/**
* Resolves properties files from runtime property value <code>SDNC_CONFIG_DIR</code> defined in the osgi properties.
*/
public class BundleContextFileResolver implements PropertiesFileResolver {
/**
* Key for osgi variable representing the configuration directory
*/
private static final String SDNC_CONFIG_DIR_PROP_KEY = "SDNC_CONFIG_DIR";
private final String successMessage;
private final Class<?> clazz;
public BundleContextFileResolver(final String successMessage, final Class<?> clazz) {
this.successMessage = successMessage;
this.clazz = clazz;
}
/**
* Parse a properties file location based on JRE argument
*
* @return an Optional File containing the location if it exists, or an empty Optional
*/
@Override
public Optional<File> resolveFile(final String filename) {
if(FrameworkUtil.getBundle(clazz) == null) {
return Optional.empty();
} else {
try {
final String pathProperty = FrameworkUtil.getBundle(this.clazz).getBundleContext().getProperty(SDNC_CONFIG_DIR_PROP_KEY);
if(Strings.isNullOrEmpty(pathProperty)) {
return Optional.empty();
}
final Path dblibPath = Paths.get(pathProperty);
return Optional.of(dblibPath.resolve(filename).toFile());
} catch(final Exception e) {
LoggerFactory.getLogger(this.getClass()).error("", e);
return Optional.empty();
}
}
}
@Override
public String getSuccessfulResolutionMessage() {
return this.successMessage;
}
}
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