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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.common.util;
import org.apache.commons.codec.binary.Base64;
import org.openecomp.sdc.be.config.Configuration.*;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration.ComponentArtifactTypesConfig;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration.CreateTopicConfig;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration.DistributionNotificationTopicConfig;
import org.openecomp.sdc.be.config.DistributionEngineConfiguration.DistributionStatusTopicConfig;
import org.openecomp.sdc.be.config.validation.DeploymentArtifactHeatConfiguration;
import org.openecomp.sdc.common.log.enums.EcompLoggerErrorCode;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.openecomp.sdc.fe.config.Configuration.FeMonitoringConfig;
import org.yaml.snakeyaml.TypeDescription;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.error.YAMLException;
import org.yaml.snakeyaml.introspector.PropertyUtils;
import org.yaml.snakeyaml.nodes.Node;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Map;
public class YamlToObjectConverter {
private static Logger log = Logger.getLogger(YamlToObjectConverter.class.getName());
private static HashMap<String, Yaml> yamls = new HashMap<>();
private static Yaml defaultYaml = new Yaml();
static {
org.yaml.snakeyaml.constructor.Constructor deConstructor = new org.yaml.snakeyaml.constructor.Constructor(
DistributionEngineConfiguration.class);
TypeDescription deDescription = new TypeDescription(DistributionEngineConfiguration.class);
deDescription.putListPropertyType("distributionStatusTopic", DistributionStatusTopicConfig.class);
deDescription.putListPropertyType("distribNotifServiceArtifactTypes", ComponentArtifactTypesConfig.class);
deDescription.putListPropertyType("distribNotifResourceArtifactTypes", ComponentArtifactTypesConfig.class);
deDescription.putListPropertyType("createTopic", CreateTopicConfig.class);
deDescription.putListPropertyType("distributionNotificationTopic", DistributionNotificationTopicConfig.class);
deConstructor.addTypeDescription(deDescription);
Yaml yaml = new Yaml(deConstructor);
yamls.put(DistributionEngineConfiguration.class.getName(), yaml);
// FE conf
org.yaml.snakeyaml.constructor.Constructor feConfConstructor = new org.yaml.snakeyaml.constructor.Constructor(
org.openecomp.sdc.fe.config.Configuration.class);
TypeDescription feConfDescription = new TypeDescription(org.openecomp.sdc.fe.config.Configuration.class);
feConfDescription.putListPropertyType("systemMonitoring", FeMonitoringConfig.class);
feConfConstructor.addTypeDescription(feConfDescription);
yamls.put(org.openecomp.sdc.fe.config.Configuration.class.getName(), new Yaml(feConfConstructor));
// BE conf
org.yaml.snakeyaml.constructor.Constructor beConfConstructor = new org.yaml.snakeyaml.constructor.Constructor(
org.openecomp.sdc.be.config.Configuration.class);
TypeDescription beConfDescription = new TypeDescription(org.openecomp.sdc.be.config.Configuration.class);
beConfConstructor.addTypeDescription(beConfDescription);
// systemMonitoring
beConfDescription.putListPropertyType("systemMonitoring", BeMonitoringConfig.class);
// resourceDeploymentArtifacts and serviceDeploymentArtifacts
beConfDescription.putMapPropertyType("resourceDeploymentArtifacts", String.class,
ArtifactTypeConfig.class);
beConfDescription.putMapPropertyType("serviceDeploymentArtifacts", String.class,
ArtifactTypeConfig.class);
// onboarding
beConfDescription.putListPropertyType("onboarding", OnboardingConfig.class);
// ecompPortal
beConfDescription.putListPropertyType("ecompPortal", EcompPortalConfig.class);
// switchoverDetector
beConfDescription.putListPropertyType("switchoverDetector", SwitchoverDetectorConfig.class);
// ApplicationL1Cache
beConfDescription.putListPropertyType("applicationL1Cache", ApplicationL1CacheConfig.class);
// ApplicationL2Cache
beConfDescription.putListPropertyType("applicationL2Cache", ApplicationL2CacheConfig.class);
// tosca validators config
beConfDescription.putListPropertyType("toscaValidators", ToscaValidatorsConfig.class);
yamls.put(org.openecomp.sdc.be.config.Configuration.class.getName(), new Yaml(beConfConstructor));
// HEAT deployment artifact
org.yaml.snakeyaml.constructor.Constructor depArtHeatConstructor = new org.yaml.snakeyaml.constructor.Constructor(
DeploymentArtifactHeatConfiguration.class);
PropertyUtils propertyUtils = new PropertyUtils();
// Skip properties which are found in YAML but not found in POJO
propertyUtils.setSkipMissingProperties(true);
depArtHeatConstructor.setPropertyUtils(propertyUtils);
yamls.put(org.openecomp.sdc.be.config.validation.DeploymentArtifactHeatConfiguration.class.getName(),
new Yaml(depArtHeatConstructor));
}
private static <T> Yaml getYamlByClassName(Class<T> className) {
Yaml yaml = yamls.get(className.getName());
if (yaml == null) {
yaml = defaultYaml;
}
return yaml;
}
public <T> T convert(String dirPath, Class<T> className, String configFileName) {
T config = null;
try {
String fullFileName = dirPath + File.separator + configFileName;
config = convert(fullFileName, className);
} catch (Exception e) {
log.error(EcompLoggerErrorCode.UNKNOWN_ERROR,"","","Failed to convert yaml file {} to object.", configFileName,e);
}
return config;
}
public class MyYamlConstructor extends org.yaml.snakeyaml.constructor.Constructor {
private HashMap<String, Class<?>> classMap = new HashMap<>();
public MyYamlConstructor(Class<? extends Object> theRoot) {
super(theRoot);
classMap.put(DistributionEngineConfiguration.class.getName(), DistributionEngineConfiguration.class);
classMap.put(DistributionStatusTopicConfig.class.getName(), DistributionStatusTopicConfig.class);
}
/*
* This is a modified version of the Constructor. Rather than using a
* class loader to get external classes, they are already predefined
* above. This approach works similar to the typeTags structure in the
* original constructor, except that class information is pre-populated
* during initialization rather than runtime.
*
* @see
* org.yaml.snakeyaml.constructor.Constructor#getClassForNode(org.yaml.
* snakeyaml.nodes.Node)
*/
protected Class<?> getClassForNode(Node node) {
String name = node.getTag().getClassName();
Class<?> cl = classMap.get(name);
if (cl == null)
throw new YAMLException("Class not found: " + name);
else
return cl;
}
}
public <T> T convert(String fullFileName, Class<T> className) {
T config = null;
Yaml yaml = getYamlByClassName(className);
InputStream in = null;
try {
File f = new File(fullFileName);
if (!f.exists()) {
log.warn(EcompLoggerErrorCode.UNKNOWN_ERROR,"","","The file {} cannot be found. Ignore reading configuration.",fullFileName);
return null;
}
in = Files.newInputStream(Paths.get(fullFileName));
config = yaml.loadAs(in, className);
// System.out.println(config.toString());
} catch (Exception e) {
log.error(EcompLoggerErrorCode.UNKNOWN_ERROR,"","","Failed to convert yaml file {} to object.", fullFileName, e);
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
log.debug("Failed to close input stream", e);
e.printStackTrace();
}
}
}
return config;
}
public <T> T convert(byte[] fileContents, Class<T> className) {
T config = null;
Yaml yaml = getYamlByClassName(className);
InputStream in = null;
try {
in = new ByteArrayInputStream(fileContents);
config = yaml.loadAs(in, className);
} catch (Exception e) {
log.error(EcompLoggerErrorCode.UNKNOWN_ERROR,"","","Failed to convert yaml file to object", e);
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
log.debug("Failed to close input stream", e);
e.printStackTrace();
}
}
}
return config;
}
public boolean isValidYamlEncoded64(byte[] fileContents) {
log.trace("Received Base64 data - decoding before validating...");
byte[] decodedFileContents = Base64.decodeBase64(fileContents);
return isValidYaml(decodedFileContents);
}
@SuppressWarnings("unchecked")
public boolean isValidYaml(byte[] fileContents) {
try {
Iterable<Object> mappedToscaTemplateIt = defaultYaml.loadAll(new ByteArrayInputStream(fileContents));
for (Object o : mappedToscaTemplateIt) {
System.out.println("Loaded object type:" + o.getClass());
Map<String, Object> map = (Map<String, Object>) o;
}
} catch (Exception e) {
log.error(EcompLoggerErrorCode.UNKNOWN_ERROR,"","","Failed to convert yaml file to object - yaml is invalid", e);
return false;
}
return true;
}
}
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