Decouple config and netconf subsystems.

[controller.git] / opendaylight / config / config-manager-facade-xml / src / main / java / org / opendaylight / controller / config / facade / xml / mapping / attributes / fromxml / ObjectNameAttributeReadingStrategy.java

diff --git a/opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/fromxml/ObjectNameAttributeReadingStrategy.java b/opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/fromxml/ObjectNameAttributeReadingStrategy.java
new file mode 100644 (file)
index 0000000..725d73a
--- /dev/null
+++ b/opendaylight/config/config-manager-facade-xml/src/main/java/org/opendaylight/controller/config/facade/xml/mapping/attributes/fromxml/ObjectNameAttributeReadingStrategy.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.config.facade.xml.mapping.attributes.fromxml;
+
+import com.google.common.base.Preconditions;
+import java.util.List;
+import java.util.Map;
+import org.opendaylight.controller.config.facade.xml.mapping.attributes.mapping.ObjectNameAttributeMappingStrategy;
+import org.opendaylight.controller.config.util.xml.DocumentedException;
+import org.opendaylight.controller.config.util.xml.XmlElement;
+import org.opendaylight.controller.config.util.xml.XmlMappingConstants;
+
+public class ObjectNameAttributeReadingStrategy extends AbstractAttributeReadingStrategy {
+
+    private static final Object PREFIX_SEPARATOR = ":";
+
+    public ObjectNameAttributeReadingStrategy(String nullableDefault) {
+        super(nullableDefault);
+    }
+
+    @Override
+    AttributeConfigElement readElementHook(List<XmlElement> configNodes) throws DocumentedException {
+
+        XmlElement firstChild = configNodes.get(0);
+        Preconditions.checkState(configNodes.size() == 1, "This element should be present only once " + firstChild
+                + " but was " + configNodes.size());
+
+        Preconditions.checkNotNull(firstChild, "Element %s should be present", firstChild);
+        return AttributeConfigElement.create(getNullableDefault(), resolve(firstChild));
+    }
+
+    private ObjectNameAttributeMappingStrategy.MappedDependency resolve(XmlElement firstChild) throws DocumentedException{
+        XmlElement typeElement = firstChild.getOnlyChildElementWithSameNamespace(XmlMappingConstants.TYPE_KEY);
+        Map.Entry<String, String> prefixNamespace = typeElement.findNamespaceOfTextContent();
+
+        String serviceName = checkPrefixAndExtractServiceName(typeElement, prefixNamespace);
+
+        XmlElement nameElement = firstChild.getOnlyChildElementWithSameNamespace(XmlMappingConstants.NAME_KEY);
+        String dependencyName = nameElement.getTextContent();
+
+        return new ObjectNameAttributeMappingStrategy.MappedDependency(prefixNamespace.getValue(), serviceName,
+                dependencyName);
+    }
+
+    public static String checkPrefixAndExtractServiceName(XmlElement typeElement, Map.Entry<String, String> prefixNamespace) throws DocumentedException {
+        String serviceName = typeElement.getTextContent();
+        Preconditions.checkNotNull(prefixNamespace.getKey(), "Service %s value cannot be linked to namespace",
+                XmlMappingConstants.TYPE_KEY);
+        if(prefixNamespace.getKey().isEmpty()) {
+            return serviceName;
+        } else {
+            String prefix = prefixNamespace.getKey() + PREFIX_SEPARATOR;
+            Preconditions.checkState(serviceName.startsWith(prefix),
+                    "Service %s not correctly prefixed, expected %s, but was %s", XmlMappingConstants.TYPE_KEY, prefix,
+                    serviceName);
+            serviceName = serviceName.substring(prefix.length());
+            return serviceName;
+        }
+    }
+
+}