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/*-
* ============LICENSE_START=======================================================
* ONAP - SO
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. 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.
* ============LICENSE_END=========================================================
*/
package org.onap.so.bpmn.core;
import java.util.Optional;
import org.camunda.bpm.engine.delegate.DelegateExecution;
import org.onap.so.logger.MsoLogger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Component;
/**
* Read the URN property value from the execution object or from the spring environment object
*/
@Component
@Configuration
public class UrnPropertiesReader {
private static final MsoLogger LOGGER = MsoLogger.getMsoLogger(MsoLogger.Catalog.BPEL,UrnPropertiesReader.class);
private static Environment environment;
@Autowired
public void setEnvironment(Environment environment) {
this.environment = environment;
}
/**
* Return the URN property value
* if property is present in the execution object, return the same
* else search in the environment object. If found, add it to the execution object and return the value
* otherwise return null
*
* @param variableName URN property name
* @param execution The flow's execution instance.
* @return URN property value
*/
public static String getVariable(String variableName, DelegateExecution execution) {
Object value = execution.getVariable(variableName);
if (value != null) {
LOGGER.trace("Retrieved value for the URN variable, " + variableName + ", from the execution object: " + String.valueOf(value));
return String.valueOf(value);
}
String variableValue = null;
if (environment != null && environment.getProperty(variableName) != null) {
variableValue = environment.getProperty(variableName);
LOGGER.trace("Retrieved value for the URN variable, " + variableName + ", from the environment variable: " + variableValue);
execution.setVariable(variableName, variableValue);
return variableValue;
}
return variableValue;
}
public static String getVariable(String variableName, DelegateExecution execution, String defaultValue) {
return Optional.ofNullable(getVariable(variableName, execution)).orElse(defaultValue);
}
/**
* Return the URN property value from the environment object
* @param variableName URN property name
* @return URN property value
*/
public static String getVariable(String variableName){
if (environment != null) {
return environment.getProperty(variableName);
} else {
return null;
}
}
/**
* Return the String array URN property value from the environment object
* @param variableName URN property name
* @return URN property value
*/
public static String[] getVariablesArray(String variableName){
if (environment != null) {
return environment.getProperty(variableName, String[].class);
} else {
return null;
}
}
public static String getVariable(String variableName, String defaultValue) {
return Optional.ofNullable(getVariable(variableName)).orElse(defaultValue);
}
}
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