yang/odlext-parser-support/src/main/java/org/opendaylight/yangtools/odlext/parser/AnyxmlStatementSupportOverride.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.yangtools.odlext.parser;
   9
  10 import java.util.Map;
  11 import java.util.Optional;
  12 import org.opendaylight.yangtools.odlext.model.api.AnyxmlSchemaLocationStatement;
  13 import org.opendaylight.yangtools.yang.common.QName;
  14 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
  15 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  16 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.AnyxmlEffectiveStatement;
  18 import org.opendaylight.yangtools.yang.model.api.stmt.AnyxmlStatement;
  19 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
  20 import org.opendaylight.yangtools.yang.parser.rfc7950.namespace.SchemaNodeIdentifierBuildNamespace;
  21 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.anyxml.AnyxmlStatementSupport;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.ForwardingStatementSupport;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
  24 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  25 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  26
  27 public final class AnyxmlStatementSupportOverride
  28         extends ForwardingStatementSupport<QName, AnyxmlStatement, AnyxmlEffectiveStatement> {
  29     private static final AnyxmlStatementSupportOverride INSTANCE = new AnyxmlStatementSupportOverride();
  30
  31     private final StatementSupport<QName, AnyxmlStatement, AnyxmlEffectiveStatement> delegate =
  32             new AnyxmlStatementSupport();
  33
  34     private AnyxmlStatementSupportOverride() {
  35
  36     }
  37
  38     public static AnyxmlStatementSupportOverride getInstance() {
  39         return INSTANCE;
  40     }
  41
  42     @Override
  43     protected StatementSupport<QName, AnyxmlStatement, AnyxmlEffectiveStatement> delegate() {
  44         return delegate;
  45     }
  46
  47     @Override
  48     public Class<? extends EffectiveStatement<?, ?>> getEffectiveRepresentationClass() {
  49         // FIXME: this is not entirely accurate?
  50         return delegate.getEffectiveRepresentationClass();
  51     }
  52
  53     @Override
  54     public AnyxmlEffectiveStatement createEffective(
  55             final StmtContext<QName, AnyxmlStatement, AnyxmlEffectiveStatement> ctx) {
  56         final AnyxmlEffectiveStatement delegateStatement = delegate.createEffective(ctx);
  57         final Map<StatementDefinition, Mutable<SchemaNodeIdentifier, AnyxmlSchemaLocationStatement,
  58             EffectiveStatement<SchemaNodeIdentifier, AnyxmlSchemaLocationStatement>>> schemaLocations =
  59                 ctx.getAllFromCurrentStmtCtxNamespace(AnyxmlSchemaLocationNamespace.class);
  60         if (schemaLocations != null && !schemaLocations.isEmpty()) {
  61             final SchemaNodeIdentifier anyXmlSchemaNodeIdentifier = schemaLocations.values().iterator().next()
  62                     .getStatementArgument();
  63             final Optional<ContainerSchemaNode> anyXmlSchema = getAnyXmlSchema(ctx, anyXmlSchemaNodeIdentifier);
  64             if (anyXmlSchema.isPresent()) {
  65                 return new YangModeledAnyxmlEffectiveStatementImpl(delegateStatement, anyXmlSchema.get());
  66             }
  67         }
  68
  69         return delegateStatement;
  70     }
  71
  72     private static Optional<ContainerSchemaNode> getAnyXmlSchema(
  73             final StmtContext<QName, AnyxmlStatement, AnyxmlEffectiveStatement> ctx,
  74             final SchemaNodeIdentifier contentSchemaPath) {
  75         return SchemaNodeIdentifierBuildNamespace.findNode(ctx.getRoot(), contentSchemaPath)
  76                 .map(StmtContext::buildEffective)
  77                 .filter(ContainerSchemaNode.class::isInstance).map(ContainerSchemaNode.class::cast);
  78     }
  79 }