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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.appc.adapter.messaging.dmaap.impl;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import org.onap.appc.configuration.Configuration;
import org.onap.appc.configuration.ConfigurationFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DmaapUtil {
private static final char DELIMITER = '_';
static final String DMAAP_PROPERTIES_PATH = "org.onap.appc.dmaap.profile.path";
private static final Logger log = LoggerFactory.getLogger(DmaapUtil.class);
private DmaapUtil() {
}
private static String createPreferredRouteFileIfNotExist(String topic) throws IOException {
String topicPreferredRouteFileName;
topicPreferredRouteFileName = topic + "preferredRoute.properties";
File fo = new File(topicPreferredRouteFileName);
if (!fo.exists()) {
ClassLoader classLoader = DmaapUtil.class.getClassLoader();
InputStream inputStream = classLoader.getResourceAsStream("preferredRoute.txt");
Properties props = new Properties();
props.load(inputStream);
String fileName = topic != null ? topic + DELIMITER + "MR1" : DELIMITER + "MR1";
props.setProperty("preferredRouteKey", fileName);
topicPreferredRouteFileName = topic + "preferredRoute.properties";
props.store(new FileOutputStream(topicPreferredRouteFileName),
"preferredRoute.properties file created on the fly for topic:" + topic + " on:"
+ System.currentTimeMillis());
}
return topicPreferredRouteFileName;
}
public static String createConsumerPropFile(String topic, Properties props) throws IOException {
String defaultProfFileName = "consumer.properties";
log.debug("Creating DMaaP Consumer Property File for topic " + topic);
return createConsumerProducerPropFile(topic, defaultProfFileName, props);
}
public static String createProducerPropFile(String topic, Properties props) throws IOException {
String defaultProfFileName = "producer.properties";
log.debug("Creating DMaaP Producer Property File for topic " + topic);
return createConsumerProducerPropFile(topic, defaultProfFileName, props);
}
private static String createConsumerProducerPropFile(String topic, String defaultProfFileName, Properties props)
throws IOException {
Properties defaultProps = getDefaultProperties(defaultProfFileName);
defaultProps.setProperty("topic", topic);
String preferredRouteFileName = DmaapUtil.createPreferredRouteFileIfNotExist(topic);
if (props != null && !props.isEmpty()) {
defaultProps.putAll(props);
}
defaultProps.setProperty("topic", topic);
defaultProps.setProperty("DME2preferredRouterFilePath", preferredRouteFileName);
String id = defaultProps.getProperty("id");
String topicConsumerPropFileName = defaultProfFileName;
topicConsumerPropFileName = id != null ? id + DELIMITER + topicConsumerPropFileName
: DELIMITER + topicConsumerPropFileName;
topicConsumerPropFileName = topic != null ? topic + DELIMITER + topicConsumerPropFileName
: DELIMITER + topicConsumerPropFileName;
defaultProps.store(new FileOutputStream(topicConsumerPropFileName), defaultProfFileName
+ " file created on the fly for topic:" + topic + " on:" + System.currentTimeMillis());
return topicConsumerPropFileName;
}
private static Properties getDefaultProperties(String profileName) {
Properties props = new Properties();
// use appc configuration to get all properties which includes
// appc.properties and system properties
// allowing variable to be set in any location
Configuration config = ConfigurationFactory.getConfiguration();
String dmaapPropPath = config.getProperty(DMAAP_PROPERTIES_PATH);
if (dmaapPropPath != null) {
// load from file system
File profileFile = new File(dmaapPropPath, profileName);
FileInputStream inputStream = null;
log.info("Loading DMaaP Profile from " + profileFile.getAbsolutePath());
if (profileFile.exists()) {
try {
inputStream = new FileInputStream(profileFile);
props.load(inputStream);
} catch (IOException e) {
log.error("Exception loading DMaaP Profile from " + profileFile.getAbsolutePath(), e);
} finally {
try {
if (inputStream != null) {
inputStream.close();
}
} catch (IOException ex) {
log.warn("Exception closing DMaaP Profile file " + profileFile.getAbsolutePath(), ex);
}
}
}
}
if (props.isEmpty()) {
// load default Profile from class
log.info("Loading Default DMaaP Profile");
ClassLoader classLoader = DmaapUtil.class.getClassLoader();
InputStream inputStream = classLoader.getResourceAsStream(profileName);
try {
props.load(inputStream);
} catch (IOException e) {
log.error("Exception loading Default DMaaP Profile", e);
}
}
return props;
}
}
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