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/*-
* ============LICENSE_START=======================================================
* org.openecomp.aai
* ================================================================================
* 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.openecomp.aai.extensions;
import java.lang.reflect.Method;
import org.openecomp.aai.exceptions.AAIException;
import org.openecomp.aai.logging.AAILogger;
import org.openecomp.aai.logging.LogLine;
import org.openecomp.aai.util.AAIConfig;
public class ExtensionController {
/**
* Run extension.
*
* @param apiVersion the api version
* @param namespace the namespace
* @param resourceName the resource name
* @param methodName the method name
* @param aaiExtMap the aai ext map
* @param isPreExtension the is pre extension
* @throws AAIException the AAI exception
*/
public void runExtension(String apiVersion, String namespace,
String resourceName, String methodName, AAIExtensionMap aaiExtMap,
boolean isPreExtension) throws AAIException {
String fromAppId = aaiExtMap.getFromAppId();
String transId = aaiExtMap.getTransId();
String extensionClassName = "org.openecomp.aai.extensions."
+ apiVersion.toLowerCase() + "." + namespace + "."
+ resourceName + "Extension";
String defaultErrorCallback = resourceName + "ExtensionErrorCallback";
LogLine eLogline = new LogLine();
AAILogger aaiLogger = aaiExtMap.getAaiLogger();
String configOption = "aai.extensions." + apiVersion.toLowerCase()
+ "." + namespace.toLowerCase() + "."
+ resourceName.toLowerCase() + ".enabled";
try {
String extensionEnabled = AAIConfig.get(configOption, "true");
if (extensionEnabled.equalsIgnoreCase("false")) {
return;
}
Class<?> clazz = Class.forName(extensionClassName);
Method extension = clazz.getMethod(methodName,
new Class[] { AAIExtensionMap.class });
if (extension != null) {
eLogline.init("runExtension", transId, fromAppId, methodName);
Object ret = extension.invoke(clazz.newInstance(), aaiExtMap);
// reset
if (ret instanceof Integer) {
//aaiLogger.debug(logline, methodName + "Returned "
// + (int) ret + " " + aaiExtMap.getMessage());
Exception e = null;
if (isPreExtension == true) {
e = aaiExtMap.getPreExtException();
} else {
e = aaiExtMap.getPostExtException();
}
boolean failOnError = true;
if (isPreExtension == true) {
failOnError = aaiExtMap.getPreExtFailOnError();
} else {
failOnError = aaiExtMap.getPostExtFailOnError();
}
if (e != null) {
boolean handleException = true;
if (isPreExtension == true) {
if (aaiExtMap.getPreExtSkipErrorCallback() == true) {
handleException = false;
}
} else {
if (aaiExtMap.getPostExtSkipErrorCallback() == true) {
handleException = false;
}
}
if (handleException == true) {
Method errorCallback = null;
if (isPreExtension == true) {
errorCallback = aaiExtMap
.getPreExtErrorCallback();
} else {
errorCallback = aaiExtMap
.getPostExtErrorCallback();
}
if (errorCallback != null) {
//aaiLogger.debug(logline,
//"Calling custom error callback: "
// + errorCallback.getName());
errorCallback.invoke(clazz.newInstance(),
aaiExtMap);
} else {
Method defaultErrorCallbackExtension = clazz
.getMethod(
defaultErrorCallback,
new Class[] { AAIExtensionMap.class });
//aaiLogger.debug(
//logline,
//"Calling default error callback: "
// + defaultErrorCallbackExtension
// .getName());
defaultErrorCallbackExtension.invoke(
clazz.newInstance(), aaiExtMap);
}
}
}
if (failOnError == true && e != null) {
throw e;
} else if (failOnError == false && e != null) { // in this
// case, we
// just note
// the error
// without
// stopping
eLogline.add(methodName + " Message",
aaiExtMap.getMessage());
aaiLogger.info(eLogline, true, "0");
} else {
aaiLogger.info(eLogline, true, "0");
}
}
}
} catch (ClassNotFoundException ex) {
// do nothing, this is normal
//aaiLogger.debug(logline, "Extension class not found in "
//+ extensionClassName + ", skipping " + methodName + ".");
} catch (NoSuchMethodException e) {
// The extension class might exist but there is not a matching
// method in the extension class
//aaiLogger.debug(logline, methodName + " not found in " + extensionClassName +
//". This is likely normal, this message is for devs to debug extensions.");
} catch (AAIException e) {
aaiLogger.info(eLogline, false, e.getErrorObject().getErrorCodeString());
throw e;
} catch (Exception e) {
aaiLogger.info(eLogline, false, "AAI_5105");
throw new AAIException("AAI_5105", e);
}
}
}
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