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
  11 import java.util.HashMap;
  12 import java.util.Map;
  13
  14 import org.opendaylight.yangtools.binding.data.codec.util.ChoiceDispatchSerializer;
  15 import org.opendaylight.yangtools.sal.binding.model.api.GeneratedType;
  16 import org.opendaylight.yangtools.sal.binding.model.api.MethodSignature;
  17 import org.opendaylight.yangtools.sal.binding.model.api.ParameterizedType;
  18 import org.opendaylight.yangtools.sal.binding.model.api.Type;
  19 import org.opendaylight.yangtools.yang.binding.BindingMapping;
  20 import org.opendaylight.yangtools.yang.binding.BindingStreamEventWriter;
  21 import org.opendaylight.yangtools.yang.binding.DataObject;
  22 import org.opendaylight.yangtools.yang.binding.DataObjectSerializerImplementation;
  23 import org.opendaylight.yangtools.yang.binding.DataObjectSerializerRegistry;
  24 import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
  25 import org.opendaylight.yangtools.yang.model.api.ChoiceNode;
  26 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  27 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
  28 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
  29 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  30 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
  31 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  32 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  33 import org.opendaylight.yangtools.yang.model.api.type.BooleanTypeDefinition;
  34
  35 abstract class DataNodeContainerSerializerSource extends DataObjectSerializerSource {
  36
  37     protected static final String INPUT = "_input";
  38     private static final String CHOICE_PREFIX = "CHOICE_";
  39
  40     protected final DataNodeContainer schemaNode;
  41     private final GeneratedType dtoType;
  42
  43     DataNodeContainerSerializerSource(final AbstractGenerator generator, final GeneratedType type, final DataNodeContainer node) {
  44         super(generator);
  45         this.dtoType = Preconditions.checkNotNull(type);
  46         this.schemaNode = Preconditions.checkNotNull(node);
  47     }
  48
  49     /**
  50      * Return the character sequence which should be used for start event.
  51      *
  52      * @return Start event character sequence
  53      */
  54     protected abstract CharSequence emitStartEvent();
  55
  56     @Override
  57     protected CharSequence getSerializerBody() {
  58         StringBuilder b = new StringBuilder();
  59         b.append("{\n");
  60         b.append(statement(assign(DataObjectSerializerRegistry.class.getName(), REGISTRY, "$1")));
  61         b.append(statement(assign(dtoType.getFullyQualifiedName(), INPUT,
  62                 cast(dtoType.getFullyQualifiedName(), "$2"))));
  63         b.append(statement(assign(BindingStreamEventWriter.class.getName(), STREAM, cast(BindingStreamEventWriter.class.getName(), "$3"))));
  64         b.append(statement(emitStartEvent()));
  65
  66         emitBody(b);
  67         emitAfterBody(b);
  68         b.append(statement(endNode()));
  69         b.append(statement("return null"));
  70         b.append('}');
  71         return b;
  72     }
  73
  74     /**
  75      * Allows for customization of emitting code, which is processed after
  76      * normal DataNodeContainer body. Ideal for augmentations or others.
  77      */
  78     protected void emitAfterBody(final StringBuilder b) {
  79         // No-op
  80     }
  81
  82     private static Map<String, Type> collectAllProperties(final GeneratedType type, final Map<String, Type> hashMap) {
  83         for (MethodSignature definition : type.getMethodDefinitions()) {
  84             hashMap.put(definition.getName(), definition.getReturnType());
  85         }
  86         for (Type parent : type.getImplements()) {
  87             if (parent instanceof GeneratedType) {
  88                 collectAllProperties((GeneratedType) parent, hashMap);
  89             }
  90         }
  91         return hashMap;
  92     }
  93
  94     private static final String getGetterName(final DataSchemaNode node) {
  95         final TypeDefinition<?> type ;
  96         if (node instanceof LeafSchemaNode) {
  97             type = ((LeafSchemaNode) node).getType();
  98         } else if(node instanceof LeafListSchemaNode) {
  99             type = ((LeafListSchemaNode) node).getType();
 100         } else {
 101             type = null;
 102         }
 103         String prefix = "get";
 104         if(type != null) {
 105             TypeDefinition<?> rootType = type;
 106             while (rootType.getBaseType() != null) {
 107                 rootType = rootType.getBaseType();
 108             }
 109             if(rootType instanceof BooleanTypeDefinition) {
 110                 prefix = "is";
 111             }
 112         }
 113
 114         return prefix + BindingMapping.getClassName(node.getQName().getLocalName());
 115     }
 116
 117     private void emitBody(final StringBuilder b) {
 118         Map<String, Type> getterToType = collectAllProperties(dtoType, new HashMap<String, Type>());
 119         for (DataSchemaNode schemaChild : schemaNode.getChildNodes()) {
 120             if (!schemaChild.isAugmenting()) {
 121                 String getter = getGetterName(schemaChild);
 122                 Type childType = getterToType.get(getter);
 123                 emitChild(b, getter, childType, schemaChild);
 124             }
 125         }
 126     }
 127
 128     private void emitChild(final StringBuilder b, final String getterName, final Type childType,
 129             final DataSchemaNode schemaChild) {
 130         b.append(statement(assign(childType, getterName, cast(childType, invoke(INPUT, getterName)))));
 131
 132         b.append("if (").append(getterName).append(" != null) {\n");
 133         emitChildInner(b, getterName, childType, schemaChild);
 134         b.append("}\n");
 135     }
 136
 137     private void emitChildInner(final StringBuilder b, final String getterName, final Type childType,
 138             final DataSchemaNode child) {
 139         if (child instanceof LeafSchemaNode) {
 140             b.append(statement(leafNode(child.getQName().getLocalName(), getterName)));
 141         } else if (child instanceof AnyXmlSchemaNode) {
 142             b.append(statement(anyxmlNode(child.getQName().getLocalName(), getterName)));
 143         } else if (child instanceof LeafListSchemaNode) {
 144             b.append(statement(startLeafSet(child.getQName().getLocalName(),invoke(getterName, "size"))));
 145             Type valueType = ((ParameterizedType) childType).getActualTypeArguments()[0];
 146             b.append(forEach(getterName, valueType, statement(leafSetEntryNode(CURRENT))));
 147             b.append(statement(endNode()));
 148         } else if (child instanceof ListSchemaNode) {
 149             Type valueType = ((ParameterizedType) childType).getActualTypeArguments()[0];
 150             ListSchemaNode casted = (ListSchemaNode) child;
 151             emitList(b, getterName, valueType, casted);
 152         } else if (child instanceof ContainerSchemaNode) {
 153             b.append(statement(staticInvokeEmitter(childType, getterName)));
 154         } else if (child instanceof ChoiceNode) {
 155             String propertyName = CHOICE_PREFIX + childType.getName();
 156             staticConstant(propertyName, DataObjectSerializerImplementation.class, ChoiceDispatchSerializer.from(loadClass(childType)));
 157             b.append(statement(invoke(propertyName, StreamWriterGenerator.SERIALIZE_METHOD_NAME, REGISTRY, cast(DataObject.class.getName(),getterName), STREAM)));
 158         }
 159     }
 160
 161     private void emitList(final StringBuilder b, final String getterName, final Type valueType,
 162             final ListSchemaNode child) {
 163         final CharSequence startEvent;
 164
 165         b.append(statement(assign("int", "_count", invoke(getterName, "size"))));
 166         if (child.getKeyDefinition().isEmpty()) {
 167             startEvent = startUnkeyedList(classReference(valueType), "_count");
 168         } else if (child.isUserOrdered()) {
 169             startEvent = startOrderedMapNode(classReference(valueType), "_count");
 170         } else {
 171             startEvent = startMapNode(classReference(valueType), "_count");
 172         }
 173         b.append(statement(startEvent));
 174         b.append(forEach(getterName, valueType, statement(staticInvokeEmitter(valueType, CURRENT))));
 175         b.append(statement(endNode()));
 176     }
 177 }