opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/operations/getconfig/GetConfig.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.netconf.confignetconfconnector.operations.getconfig;
  10
  11 import com.google.common.base.Optional;
  12 import com.google.common.collect.Maps;
  13 import org.opendaylight.controller.config.util.ConfigRegistryClient;
  14 import org.opendaylight.controller.config.yang.store.api.YangStoreSnapshot;
  15 import org.opendaylight.controller.config.yangjmxgenerator.ModuleMXBeanEntry;
  16 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
  17 import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorSeverity;
  18 import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorTag;
  19 import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorType;
  20 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.config.Config;
  21 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.config.InstanceConfig;
  22 import org.opendaylight.controller.netconf.confignetconfconnector.mapping.config.ModuleConfig;
  23 import org.opendaylight.controller.netconf.confignetconfconnector.operations.AbstractConfigNetconfOperation;
  24 import org.opendaylight.controller.netconf.confignetconfconnector.operations.Datastore;
  25 import org.opendaylight.controller.netconf.confignetconfconnector.transactions.TransactionProvider;
  26 import org.opendaylight.controller.netconf.util.xml.XmlElement;
  27 import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30 import org.w3c.dom.Document;
  31 import org.w3c.dom.Element;
  32
  33 import javax.management.ObjectName;
  34 import java.util.HashMap;
  35 import java.util.Map;
  36 import java.util.Set;
  37
  38 public class GetConfig extends AbstractConfigNetconfOperation {
  39
  40     public static final String GET_CONFIG = "get-config";
  41
  42     private final YangStoreSnapshot yangStoreSnapshot;
  43     private final Optional<String> maybeNamespace;
  44
  45     private final TransactionProvider transactionProvider;
  46
  47     private static final Logger logger = LoggerFactory.getLogger(GetConfig.class);
  48
  49     public GetConfig(YangStoreSnapshot yangStoreSnapshot, Optional<String> maybeNamespace,
  50             TransactionProvider transactionProvider, ConfigRegistryClient configRegistryClient,
  51             String netconfSessionIdForReporting) {
  52         super(configRegistryClient, netconfSessionIdForReporting);
  53         this.yangStoreSnapshot = yangStoreSnapshot;
  54         this.maybeNamespace = maybeNamespace;
  55         this.transactionProvider = transactionProvider;
  56     }
  57
  58     public static Datastore fromXml(XmlElement xml) {
  59         xml.checkName(GET_CONFIG);
  60         xml.checkNamespace(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
  61
  62         XmlElement sourceElement = xml.getOnlyChildElement(XmlNetconfConstants.SOURCE_KEY,
  63                 XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
  64         XmlElement sourceNode = sourceElement.getOnlyChildElement();
  65         String sourceParsed = sourceNode.getName();
  66         logger.debug("Setting source datastore to '{}'", sourceParsed);
  67         Datastore sourceDatastore = Datastore.valueOf(sourceParsed);
  68
  69         // Filter option - unsupported
  70         if (xml.getChildElements(XmlNetconfConstants.FILTER).size() != 0)
  71             throw new UnsupportedOperationException("Unsupported option " + XmlNetconfConstants.FILTER + " for "
  72                     + GET_CONFIG);
  73
  74         return sourceDatastore;
  75
  76     }
  77
  78     private Element getResponseInternal(final Document document, final ConfigRegistryClient configRegistryClient,
  79             final Datastore source) throws NetconfDocumentedException {
  80         Element dataElement = document.createElement(XmlNetconfConstants.DATA_KEY);
  81         final Set<ObjectName> instances = Datastore.getInstanceQueryStrategy(source, this.transactionProvider)
  82                 .queryInstances(configRegistryClient);
  83         final Config configMapping = new Config(transform(configRegistryClient,
  84                 yangStoreSnapshot.getModuleMXBeanEntryMap()));
  85         dataElement = configMapping.toXml(instances, this.maybeNamespace, document, dataElement);
  86
  87         logger.info("{} operation successful", GET_CONFIG);
  88
  89         return dataElement;
  90     }
  91
  92     // TODO refactor ... duplicate code
  93     private Map<String, Map<String, ModuleConfig>> transform(final ConfigRegistryClient configRegistryClient,
  94             Map<String, Map<String, ModuleMXBeanEntry>> mBeanEntries) {
  95         return Maps.transformEntries(mBeanEntries,
  96                 new Maps.EntryTransformer<String, Map<String, ModuleMXBeanEntry>, Map<String, ModuleConfig>>() {
  97
  98                     @Override
  99                     public Map<String, ModuleConfig> transformEntry(String arg0, Map<String, ModuleMXBeanEntry> arg1) {
 100                         return Maps.transformEntries(arg1,
 101                                 new Maps.EntryTransformer<String, ModuleMXBeanEntry, ModuleConfig>() {
 102
 103                                     @Override
 104                                     public ModuleConfig transformEntry(String key, ModuleMXBeanEntry value) {
 105                                         return new ModuleConfig(key, new InstanceConfig(configRegistryClient, value
 106                                                 .getAttributes()), value.getProvidedServices().values());
 107                                     }
 108                                 });
 109                     }
 110                 });
 111     }
 112
 113     @Override
 114     protected String getOperationName() {
 115         return GET_CONFIG;
 116     }
 117
 118     @Override
 119     public Element handle(Document document, XmlElement xml) throws NetconfDocumentedException {
 120         Datastore source;
 121         try {
 122             source = fromXml(xml);
 123         } catch (final IllegalArgumentException e) {
 124             logger.warn("Rpc error: {}", ErrorTag.bad_attribute, e);
 125             final Map<String, String> errorInfo = new HashMap<>();
 126             errorInfo.put(ErrorTag.bad_attribute.name(), e.getMessage());
 127             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.rpc, ErrorTag.bad_attribute,
 128                     ErrorSeverity.error, errorInfo);
 129         } catch (final IllegalStateException e) {
 130             logger.warn("Rpc error: {}", ErrorTag.missing_attribute, e);
 131             final Map<String, String> errorInfo = new HashMap<>();
 132             errorInfo.put(ErrorTag.missing_attribute.name(), "Missing datasource attribute value");
 133             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.rpc, ErrorTag.missing_attribute,
 134                     ErrorSeverity.error, errorInfo);
 135         } catch (final UnsupportedOperationException e) {
 136             logger.warn("Unsupported", e);
 137             final Map<String, String> errorInfo = new HashMap<>();
 138             errorInfo.put(ErrorTag.operation_not_supported.name(), "Unsupported option for get");
 139             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.application,
 140                     ErrorTag.operation_not_supported, ErrorSeverity.error, errorInfo);
 141         }
 142         return getResponseInternal(document, configRegistryClient, source);
 143     }
 144 }