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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* 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.sdc.healing.impl;
import org.openecomp.core.utilities.CommonMethods;
import org.openecomp.core.utilities.file.FileUtils;
import org.openecomp.core.utilities.json.JsonUtil;
import org.openecomp.sdc.common.errors.Messages;
import org.openecomp.sdc.datatypes.error.ErrorLevel;
import org.openecomp.sdc.healing.api.HealingManager;
import org.openecomp.sdc.healing.interfaces.Healer;
import org.openecomp.sdc.healing.types.HealCode;
import org.openecomp.sdc.logging.context.impl.MdcDataErrorMessage;
import org.openecomp.sdc.logging.types.LoggerConstants;
import org.openecomp.sdc.logging.types.LoggerErrorCode;
import org.openecomp.sdc.logging.types.LoggerErrorDescription;
import org.openecomp.sdc.logging.types.LoggerTragetServiceName;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.Map;
import java.util.Optional;
/**
* Created by Talio on 11/29/2016.
*/
public class HealingManagerImpl implements HealingManager {
private static String HEALING_CONF_FILE = "healingConfiguration.json";
private static Map<String, String> healerCodeToImplClass = initHealers();
@Override
public Object heal(HealCode code, Map<String, Object> healParameters) {
ArrayList<String> healingFailureMessages = new ArrayList<>();
Object result =
heal(healParameters, healerCodeToImplClass.get(code.name()), healingFailureMessages);
if (!healingFailureMessages.isEmpty()) {
throw new RuntimeException(CommonMethods.listToSeparatedString(healingFailureMessages, '\n'));
}
return result;
}
@Override
public Optional<String> healAll(Map<String, Object> healParameters) {
ArrayList<String> healingFailureMessages = new ArrayList<>();
for (String implClassName : healerCodeToImplClass.values()) {
heal(healParameters, implClassName, healingFailureMessages);
}
return healingFailureMessages.isEmpty() ? Optional.empty()
: Optional.of(CommonMethods.listToSeparatedString(healingFailureMessages, '\n'));
}
private Object heal(Map<String, Object> healParameters, String healerImplClassName,
ArrayList<String> healingFailureMessages) {
Healer healerImpl;
try {
healerImpl = getHealerImplInstance(healerImplClassName);
} catch (Exception e) {
MdcDataErrorMessage.createErrorMessageAndUpdateMdc(LoggerConstants.TARGET_ENTITY_DB,
LoggerTragetServiceName.SELF_HEALING, ErrorLevel.ERROR.name(), LoggerErrorCode
.DATA_ERROR.getErrorCode(), LoggerErrorDescription.CANT_HEAL);
healingFailureMessages
.add(String.format(Messages.CANT_LOAD_HEALING_CLASS.getErrorMessage(),
healerImplClassName));
return null;
}
try {
return healerImpl.heal(healParameters);
} catch (Exception e) {
MdcDataErrorMessage.createErrorMessageAndUpdateMdc(LoggerConstants.TARGET_ENTITY_DB,
LoggerTragetServiceName.SELF_HEALING, ErrorLevel.ERROR.name(), LoggerErrorCode
.DATA_ERROR.getErrorCode(), LoggerErrorDescription.CANT_HEAL);
healingFailureMessages.add(e.getMessage());
}
return null;
}
private static Map<String, String> initHealers() {
return FileUtils.readViaInputStream(HEALING_CONF_FILE, stream -> JsonUtil.json2Object(stream, Map.class));
}
private Healer getHealerImplInstance(String implClassName)
throws InstantiationException, IllegalAccessException, InvocationTargetException,
NoSuchMethodException, ClassNotFoundException {
return (Healer) Class.forName(implClassName).getConstructor().newInstance();
}
}
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