| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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. |
| */ |
| |
| package org.apache.hadoop.hdds.conf; |
| |
| import javax.xml.bind.JAXBContext; |
| import javax.xml.bind.JAXBException; |
| import javax.xml.bind.Unmarshaller; |
| import javax.xml.bind.annotation.XmlAccessType; |
| import javax.xml.bind.annotation.XmlAccessorType; |
| import javax.xml.bind.annotation.XmlElement; |
| import javax.xml.bind.annotation.XmlRootElement; |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.stream.Collectors; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdds.annotation.InterfaceAudience; |
| import org.apache.hadoop.hdds.scm.ScmConfigKeys; |
| import org.apache.hadoop.hdds.utils.LegacyHadoopConfigurationSource; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.ratis.server.RaftServerConfigKeys; |
| |
| import static org.apache.hadoop.hdds.ratis.RatisHelper.HDDS_DATANODE_RATIS_PREFIX_KEY; |
| |
| /** |
| * Configuration for ozone. |
| */ |
| @InterfaceAudience.Private |
| public class OzoneConfiguration extends Configuration |
| implements MutableConfigurationSource { |
| static { |
| addDeprecatedKeys(); |
| |
| activate(); |
| } |
| |
| public static OzoneConfiguration of(ConfigurationSource source) { |
| if (source instanceof LegacyHadoopConfigurationSource) { |
| return new OzoneConfiguration(((LegacyHadoopConfigurationSource) source) |
| .getOriginalHadoopConfiguration()); |
| } |
| return (OzoneConfiguration) source; |
| } |
| |
| public static OzoneConfiguration of(OzoneConfiguration source) { |
| return source; |
| } |
| |
| public static OzoneConfiguration of(Configuration conf) { |
| Preconditions.checkNotNull(conf); |
| |
| return conf instanceof OzoneConfiguration |
| ? (OzoneConfiguration) conf |
| : new OzoneConfiguration(conf); |
| } |
| |
| /** |
| * @return a new config object of type {@code T} configured with defaults |
| * and any overrides from XML |
| */ |
| public static <T> T newInstanceOf(Class<T> configurationClass) { |
| OzoneConfiguration conf = new OzoneConfiguration(); |
| return conf.getObject(configurationClass); |
| } |
| |
| /** |
| * @return a new {@code OzoneConfiguration} instance set from the given |
| * {@code configObject} |
| */ |
| public static <T> OzoneConfiguration fromObject(T configObject) { |
| OzoneConfiguration conf = new OzoneConfiguration(); |
| conf.setFromObject(configObject); |
| return conf; |
| } |
| |
| public OzoneConfiguration() { |
| OzoneConfiguration.activate(); |
| loadDefaults(); |
| } |
| |
| public OzoneConfiguration(Configuration conf) { |
| super(conf); |
| //load the configuration from the classloader of the original conf. |
| setClassLoader(conf.getClassLoader()); |
| if (!(conf instanceof OzoneConfiguration)) { |
| loadDefaults(); |
| } |
| } |
| |
| private void loadDefaults() { |
| try { |
| //there could be multiple ozone-default-generated.xml files on the |
| // classpath, which are generated by the annotation processor. |
| // Here we add all of them to the list of the available configuration. |
| Enumeration<URL> generatedDefaults = |
| OzoneConfiguration.class.getClassLoader().getResources( |
| "ozone-default-generated.xml"); |
| while (generatedDefaults.hasMoreElements()) { |
| addResource(generatedDefaults.nextElement()); |
| } |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } |
| // Adding core-site here because properties from core-site are |
| // distributed to executors by spark driver. Ozone properties which are |
| // added to core-site, will be overriden by properties from adding Resource |
| // ozone-default.xml. So, adding core-site again will help to resolve |
| // this override issue. |
| addResource("core-site.xml"); |
| addResource("ozone-site.xml"); |
| } |
| |
| public List<Property> readPropertyFromXml(URL url) throws JAXBException { |
| JAXBContext context = JAXBContext.newInstance(XMLConfiguration.class); |
| Unmarshaller um = context.createUnmarshaller(); |
| |
| XMLConfiguration config = (XMLConfiguration) um.unmarshal(url); |
| return config.getProperties(); |
| } |
| |
| /** |
| * Class to marshall/un-marshall configuration from xml files. |
| */ |
| @XmlAccessorType(XmlAccessType.FIELD) |
| @XmlRootElement(name = "configuration") |
| public static class XMLConfiguration { |
| |
| @XmlElement(name = "property", type = Property.class) |
| private List<Property> properties = new ArrayList<>(); |
| |
| public XMLConfiguration() { |
| } |
| |
| public XMLConfiguration(List<Property> properties) { |
| this.properties = properties; |
| } |
| |
| public List<Property> getProperties() { |
| return properties; |
| } |
| |
| public void setProperties(List<Property> properties) { |
| this.properties = properties; |
| } |
| } |
| |
| /** |
| * Class to marshall/un-marshall configuration properties from xml files. |
| */ |
| @XmlAccessorType(XmlAccessType.FIELD) |
| @XmlRootElement(name = "property") |
| public static class Property implements Comparable<Property> { |
| |
| private String name; |
| private String value; |
| private String tag; |
| private String description; |
| |
| public String getName() { |
| return name; |
| } |
| |
| public void setName(String name) { |
| this.name = name; |
| } |
| |
| public String getValue() { |
| return value; |
| } |
| |
| public void setValue(String value) { |
| this.value = value; |
| } |
| |
| public String getTag() { |
| return tag; |
| } |
| |
| public void setTag(String tag) { |
| this.tag = tag; |
| } |
| |
| public String getDescription() { |
| return description; |
| } |
| |
| public void setDescription(String description) { |
| this.description = description; |
| } |
| |
| @Override |
| public int compareTo(Property o) { |
| if (this == o) { |
| return 0; |
| } |
| return this.getName().compareTo(o.getName()); |
| } |
| |
| @Override |
| public String toString() { |
| return this.getName() + " " + this.getValue() + " " + this.getTag(); |
| } |
| |
| @Override |
| public int hashCode() { |
| return this.getName().hashCode(); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| return (obj instanceof Property) && (((Property) obj).getName()) |
| .equals(this.getName()); |
| } |
| } |
| |
| public static void activate() { |
| // adds the default resources |
| Configuration.addDefaultResource("hdfs-default.xml"); |
| Configuration.addDefaultResource("hdfs-site.xml"); |
| Configuration.addDefaultResource("ozone-default.xml"); |
| } |
| |
| /** |
| * The super class method getAllPropertiesByTag |
| * does not override values of properties |
| * if there is no tag present in the configs of |
| * newly added resources. |
| * |
| * @param tag |
| * @return Properties that belong to the tag |
| */ |
| @Override |
| public Properties getAllPropertiesByTag(String tag) { |
| // Call getProps first to load the newly added resources |
| // before calling super.getAllPropertiesByTag |
| Properties updatedProps = getProps(); |
| Properties propertiesByTag = super.getAllPropertiesByTag(tag); |
| Properties props = new Properties(); |
| Enumeration properties = propertiesByTag.propertyNames(); |
| while (properties.hasMoreElements()) { |
| Object propertyName = properties.nextElement(); |
| // get the current value of the property |
| Object value = updatedProps.getProperty(propertyName.toString()); |
| if (value != null) { |
| props.put(propertyName, value); |
| } |
| } |
| return props; |
| } |
| |
| @Override |
| public Collection<String> getConfigKeys() { |
| return getProps().keySet() |
| .stream() |
| .map(Object::toString) |
| .collect(Collectors.toList()); |
| } |
| |
| @Override |
| public Map<String, String> getPropsWithPrefix(String confPrefix) { |
| Properties props = getProps(); |
| Map<String, String> configMap = new HashMap<>(); |
| for (String name : props.stringPropertyNames()) { |
| if (name.startsWith(confPrefix)) { |
| String value = get(name); |
| String keyName = name.substring(confPrefix.length()); |
| configMap.put(keyName, value); |
| } |
| } |
| return configMap; |
| } |
| |
| private static void addDeprecatedKeys(){ |
| Configuration.addDeprecations(new DeprecationDelta[]{ |
| new DeprecationDelta("ozone.datanode.pipeline.limit", |
| ScmConfigKeys.OZONE_DATANODE_PIPELINE_LIMIT), |
| new DeprecationDelta(HDDS_DATANODE_RATIS_PREFIX_KEY + "." |
| + RaftServerConfigKeys.PREFIX + "." + "rpcslowness.timeout", |
| HDDS_DATANODE_RATIS_PREFIX_KEY + "." |
| + RaftServerConfigKeys.PREFIX + "." + "rpc.slowness.timeout") |
| }); |
| } |
| } |