binding2/mdsal-binding2-dom-codec/src/main/java/org/opendaylight/mdsal/binding/javav2/dom/codec/generator/impl/StreamWriterGenerator.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. 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 package org.opendaylight.mdsal.binding.javav2.dom.codec.generator.impl;
   9
  10 import com.google.common.annotations.Beta;
  11 import org.opendaylight.mdsal.binding.javav2.dom.codec.generator.api.TreeNodeSerializerGenerator;
  12 import org.opendaylight.mdsal.binding.javav2.dom.codec.generator.spi.generator.AbstractStreamWriterGenerator;
  13 import org.opendaylight.mdsal.binding.javav2.dom.codec.generator.spi.source.AbstractAugmentableDataNodeContainerEmitterSource;
  14 import org.opendaylight.mdsal.binding.javav2.dom.codec.generator.spi.source.AbstractDataNodeContainerSerializerSource;
  15 import org.opendaylight.mdsal.binding.javav2.dom.codec.generator.spi.source.AbstractTreeNodeSerializerSource;
  16 import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.serializer.AugmentableDispatchSerializer;
  17 import org.opendaylight.mdsal.binding.javav2.dom.codec.impl.serializer.ChoiceDispatchSerializer;
  18 import org.opendaylight.mdsal.binding.javav2.model.api.GeneratedType;
  19 import org.opendaylight.mdsal.binding.javav2.runtime.javassist.JavassistUtils;
  20 import org.opendaylight.mdsal.binding.javav2.spec.base.TreeNode;
  21 import org.opendaylight.mdsal.binding.javav2.spec.runtime.BindingStreamEventWriter;
  22 import org.opendaylight.mdsal.binding.javav2.spec.runtime.TreeNodeSerializerImplementation;
  23 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
  24 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
  25 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  26 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  27 import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
  28
  29 /**
  30  * Concrete implementation of {@link AbstractStreamWriterGenerator} which in
  31  * runtime generates classes implementing
  32  * {@link TreeNodeSerializerImplementation} interface and are used to serialize
  33  * Binding {@link TreeNode}.
  34  *
  35  * <p>
  36  * Actual implementation of codecs is done via static methods, which allows for
  37  * static wiring of codecs. Choice codec and Augmentable codecs are static
  38  * properties of parent codec and stateless implementations are used (
  39  * {@link ChoiceDispatchSerializer}, {@link AugmentableDispatchSerializer},
  40  * which uses registry to dispatch to concrete item codec.
  41  */
  42 @Beta
  43 public final class StreamWriterGenerator extends AbstractStreamWriterGenerator {
  44
  45     private static final String UNKNOWN_SIZE = BindingStreamEventWriter.class.getName() + ".UNKNOWN_SIZE";
  46
  47     private StreamWriterGenerator(final JavassistUtils utils, final Void ignore) {
  48         super(utils);
  49     }
  50
  51     /**
  52      * Create a new instance backed by a specific {@link JavassistUtils}
  53      * instance.
  54      *
  55      * @param utils
  56      *            JavassistUtils instance to use
  57      * @return A new generator
  58      */
  59     public static TreeNodeSerializerGenerator create(final JavassistUtils utils) {
  60         return new StreamWriterGenerator(utils, null);
  61     }
  62
  63     @Override
  64     protected AbstractTreeNodeSerializerSource generateContainerSerializer(final GeneratedType type,
  65             final ContainerSchemaNode node) {
  66
  67         return new AbstractAugmentableDataNodeContainerEmitterSource(this, type, node) {
  68             @Override
  69             public CharSequence emitStartEvent() {
  70                 return startContainerNode(classReference(type), UNKNOWN_SIZE);
  71             }
  72         };
  73     }
  74
  75     @Override
  76     protected AbstractTreeNodeSerializerSource generateNotificationSerializer(final GeneratedType type,
  77             final NotificationDefinition node) {
  78
  79         return new AbstractAugmentableDataNodeContainerEmitterSource(this, type, node) {
  80             @Override
  81             public CharSequence emitStartEvent() {
  82                 return startContainerNode(classReference(type), UNKNOWN_SIZE);
  83             }
  84         };
  85     }
  86
  87     @Override
  88     protected AbstractTreeNodeSerializerSource generateCaseSerializer(final GeneratedType type,
  89             final ChoiceCaseNode node) {
  90         return new AbstractAugmentableDataNodeContainerEmitterSource(this, type, node) {
  91             @Override
  92             public CharSequence emitStartEvent() {
  93                 return startCaseNode(classReference(type), UNKNOWN_SIZE);
  94             }
  95         };
  96     }
  97
  98     @Override
  99     protected AbstractTreeNodeSerializerSource generateUnkeyedListEntrySerializer(final GeneratedType type,
 100             final ListSchemaNode node) {
 101         return new AbstractAugmentableDataNodeContainerEmitterSource(this, type, node) {
 102
 103             @Override
 104             public CharSequence emitStartEvent() {
 105                 return startUnkeyedListItem(UNKNOWN_SIZE);
 106             }
 107         };
 108     }
 109
 110     @Override
 111     protected AbstractTreeNodeSerializerSource generateSerializer(final GeneratedType type,
 112             final AugmentationSchema schema) {
 113         return new AbstractDataNodeContainerSerializerSource(this, type, schema) {
 114
 115             @Override
 116             public CharSequence emitStartEvent() {
 117                 return startAugmentationNode(classReference(type));
 118             }
 119         };
 120     }
 121
 122     @Override
 123     protected AbstractTreeNodeSerializerSource generateMapEntrySerializer(final GeneratedType type,
 124             final ListSchemaNode node) {
 125         return new AbstractAugmentableDataNodeContainerEmitterSource(this, type, node) {
 126             @Override
 127             public CharSequence emitStartEvent() {
 128                 return startMapEntryNode(invoke(INPUT, "getKey"), UNKNOWN_SIZE);
 129             }
 130         };
 131     }
 132 }