code-generator/binding-data-codec/src/main/java/org/opendaylight/yangtools/binding/data/codec/gen/impl/DataNodeContainerSerializerSource.java

   1 /*
   2  * Copyright (c) 2014 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  */package org.opendaylight.yangtools.binding.data.codec.gen.impl;
   8
   9 import com.google.common.base.Preconditions;
  10 import java.util.HashMap;
  11 import java.util.Map;
  12 import org.opendaylight.yangtools.binding.data.codec.util.ChoiceDispatchSerializer;
  13 import org.opendaylight.yangtools.sal.binding.model.api.GeneratedType;
  14 import org.opendaylight.yangtools.sal.binding.model.api.MethodSignature;
  15 import org.opendaylight.yangtools.sal.binding.model.api.ParameterizedType;
  16 import org.opendaylight.yangtools.sal.binding.model.api.Type;
  17 import org.opendaylight.yangtools.yang.binding.BindingMapping;
  18 import org.opendaylight.yangtools.yang.binding.BindingStreamEventWriter;
  19 import org.opendaylight.yangtools.yang.binding.DataObject;
  20 import org.opendaylight.yangtools.yang.binding.DataObjectSerializerImplementation;
  21 import org.opendaylight.yangtools.yang.binding.DataObjectSerializerRegistry;
  22 import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
  23 import org.opendaylight.yangtools.yang.model.api.ChoiceNode;
  24 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  25 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
  26 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
  27 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  28 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
  29 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  30 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  31 import org.opendaylight.yangtools.yang.model.api.type.BooleanTypeDefinition;
  32 import org.opendaylight.yangtools.yang.model.api.type.EmptyTypeDefinition;
  33
  34 abstract class DataNodeContainerSerializerSource extends DataObjectSerializerSource {
  35
  36     protected static final String INPUT = "_input";
  37     private static final String CHOICE_PREFIX = "CHOICE_";
  38
  39     protected final DataNodeContainer schemaNode;
  40     private final GeneratedType dtoType;
  41
  42     DataNodeContainerSerializerSource(final AbstractGenerator generator, final GeneratedType type, final DataNodeContainer node) {
  43         super(generator);
  44         this.dtoType = Preconditions.checkNotNull(type);
  45         this.schemaNode = Preconditions.checkNotNull(node);
  46     }
  47
  48     /**
  49      * Return the character sequence which should be used for start event.
  50      *
  51      * @return Start event character sequence
  52      */
  53     protected abstract CharSequence emitStartEvent();
  54
  55     @Override
  56     protected CharSequence getSerializerBody() {
  57         StringBuilder b = new StringBuilder();
  58         b.append("{\n");
  59         b.append(statement(assign(DataObjectSerializerRegistry.class.getName(), REGISTRY, "$1")));
  60         b.append(statement(assign(dtoType.getFullyQualifiedName(), INPUT,
  61                 cast(dtoType.getFullyQualifiedName(), "$2"))));
  62         b.append(statement(assign(BindingStreamEventWriter.class.getName(), STREAM, cast(BindingStreamEventWriter.class.getName(), "$3"))));
  63         b.append(statement(emitStartEvent()));
  64
  65         emitBody(b);
  66         emitAfterBody(b);
  67         b.append(statement(endNode()));
  68         b.append(statement("return null"));
  69         b.append('}');
  70         return b;
  71     }
  72
  73     /**
  74      * Allows for customization of emitting code, which is processed after
  75      * normal DataNodeContainer body. Ideal for augmentations or others.
  76      */
  77     protected void emitAfterBody(final StringBuilder b) {
  78         // No-op
  79     }
  80
  81     private static Map<String, Type> collectAllProperties(final GeneratedType type, final Map<String, Type> hashMap) {
  82         for (MethodSignature definition : type.getMethodDefinitions()) {
  83             hashMap.put(definition.getName(), definition.getReturnType());
  84         }
  85         for (Type parent : type.getImplements()) {
  86             if (parent instanceof GeneratedType) {
  87                 collectAllProperties((GeneratedType) parent, hashMap);
  88             }
  89         }
  90         return hashMap;
  91     }
  92
  93     private static final String getGetterName(final DataSchemaNode node) {
  94         final TypeDefinition<?> type ;
  95         if (node instanceof LeafSchemaNode) {
  96             type = ((LeafSchemaNode) node).getType();
  97         } else if(node instanceof LeafListSchemaNode) {
  98             type = ((LeafListSchemaNode) node).getType();
  99         } else {
 100             type = null;
 101         }
 102         String prefix = "get";
 103         if(type != null) {
 104             TypeDefinition<?> rootType = type;
 105             while (rootType.getBaseType() != null) {
 106                 rootType = rootType.getBaseType();
 107             }
 108             if(rootType instanceof BooleanTypeDefinition || rootType instanceof EmptyTypeDefinition) {
 109                 prefix = "is";
 110             }
 111         }
 112
 113         return prefix + BindingMapping.getClassName(node.getQName().getLocalName());
 114     }
 115
 116     private void emitBody(final StringBuilder b) {
 117         Map<String, Type> getterToType = collectAllProperties(dtoType, new HashMap<String, Type>());
 118         for (DataSchemaNode schemaChild : schemaNode.getChildNodes()) {
 119             if (!schemaChild.isAugmenting()) {
 120                 String getter = getGetterName(schemaChild);
 121                 Type childType = getterToType.get(getter);
 122                 emitChild(b, getter, childType, schemaChild);
 123             }
 124         }
 125     }
 126
 127     private void emitChild(final StringBuilder b, final String getterName, final Type childType,
 128             final DataSchemaNode schemaChild) {
 129         b.append(statement(assign(childType, getterName, cast(childType, invoke(INPUT, getterName)))));
 130
 131         b.append("if (").append(getterName).append(" != null) {\n");
 132         emitChildInner(b, getterName, childType, schemaChild);
 133         b.append("}\n");
 134     }
 135
 136     private void emitChildInner(final StringBuilder b, final String getterName, final Type childType,
 137             final DataSchemaNode child) {
 138         if (child instanceof LeafSchemaNode) {
 139             b.append(statement(leafNode(child.getQName().getLocalName(), getterName)));
 140         } else if (child instanceof AnyXmlSchemaNode) {
 141             b.append(statement(anyxmlNode(child.getQName().getLocalName(), getterName)));
 142         } else if (child instanceof LeafListSchemaNode) {
 143             b.append(statement(startLeafSet(child.getQName().getLocalName(),invoke(getterName, "size"))));
 144             Type valueType = ((ParameterizedType) childType).getActualTypeArguments()[0];
 145             b.append(forEach(getterName, valueType, statement(leafSetEntryNode(CURRENT))));
 146             b.append(statement(endNode()));
 147         } else if (child instanceof ListSchemaNode) {
 148             Type valueType = ((ParameterizedType) childType).getActualTypeArguments()[0];
 149             ListSchemaNode casted = (ListSchemaNode) child;
 150             emitList(b, getterName, valueType, casted);
 151         } else if (child instanceof ContainerSchemaNode) {
 152             b.append(statement(staticInvokeEmitter(childType, getterName)));
 153         } else if (child instanceof ChoiceNode) {
 154             String propertyName = CHOICE_PREFIX + childType.getName();
 155             staticConstant(propertyName, DataObjectSerializerImplementation.class, ChoiceDispatchSerializer.from(loadClass(childType)));
 156             b.append(statement(invoke(propertyName, StreamWriterGenerator.SERIALIZE_METHOD_NAME, REGISTRY, cast(DataObject.class.getName(),getterName), STREAM)));
 157         }
 158     }
 159
 160     private void emitList(final StringBuilder b, final String getterName, final Type valueType,
 161             final ListSchemaNode child) {
 162         final CharSequence startEvent;
 163
 164         b.append(statement(assign("int", "_count", invoke(getterName, "size"))));
 165         if (child.getKeyDefinition().isEmpty()) {
 166             startEvent = startUnkeyedList(classReference(valueType), "_count");
 167         } else if (child.isUserOrdered()) {
 168             startEvent = startOrderedMapNode(classReference(valueType), "_count");
 169         } else {
 170             startEvent = startMapNode(classReference(valueType), "_count");
 171         }
 172         b.append(statement(startEvent));
 173         b.append(forEach(getterName, valueType, statement(staticInvokeEmitter(valueType, CURRENT))));
 174         b.append(statement(endNode()));
 175     }
 176 }