yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/effective/IdentityEffectiveStatementImpl.java

   1 /**
   2  * Copyright (c) 2015 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  */
   8 package org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective;
   9
  10 import com.google.common.collect.ImmutableList;
  11 import com.google.common.collect.ImmutableSet;
  12 import java.util.Collection;
  13 import java.util.Collections;
  14 import java.util.HashSet;
  15 import java.util.LinkedList;
  16 import java.util.List;
  17 import java.util.Objects;
  18 import java.util.Set;
  19 import org.opendaylight.yangtools.yang.common.QName;
  20 import org.opendaylight.yangtools.yang.model.api.IdentitySchemaNode;
  21 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  22 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
  23 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  24 import org.opendaylight.yangtools.yang.model.api.stmt.IdentityStatement;
  25 import org.opendaylight.yangtools.yang.parser.spi.meta.DerivedIdentitiesNamespace;
  26 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  27 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.Utils;
  28
  29 public class IdentityEffectiveStatementImpl extends AbstractEffectiveDocumentedNode<QName, IdentityStatement>
  30         implements IdentitySchemaNode {
  31     private final QName qname;
  32     private final SchemaPath path;
  33     private IdentitySchemaNode baseIdentity;
  34     private ImmutableSet<IdentitySchemaNode> derivedIdentities;
  35     private ImmutableList<UnknownSchemaNode> unknownNodes;
  36
  37     public IdentityEffectiveStatementImpl(
  38             final StmtContext<QName, IdentityStatement, EffectiveStatement<QName, IdentityStatement>> ctx) {
  39         super(ctx);
  40
  41         this.qname = ctx.getStatementArgument();
  42         this.path = Utils.getSchemaPath(ctx);
  43
  44         initSubstatementCollections();
  45         initDerivedIdentities(ctx);
  46     }
  47
  48     private void initDerivedIdentities(
  49             final StmtContext<QName, IdentityStatement, EffectiveStatement<QName, IdentityStatement>> ctx) {
  50
  51         Set<IdentitySchemaNode> derivedIdentitiesInit = new HashSet<IdentitySchemaNode>();
  52         List<StmtContext<?, ?, ?>> derivedIdentitiesCtxList = ctx.getFromNamespace(
  53                 DerivedIdentitiesNamespace.class, ctx.getStatementArgument());
  54
  55         if (derivedIdentitiesCtxList == null) {
  56             this.derivedIdentities = ImmutableSet.of();
  57             return;
  58         }
  59
  60         for (StmtContext<?, ?, ?> derivedIdentityCtx : derivedIdentitiesCtxList) {
  61             IdentityEffectiveStatementImpl derivedIdentity = (IdentityEffectiveStatementImpl) derivedIdentityCtx
  62                     .buildEffective();
  63             derivedIdentity.initBaseIdentity(this);
  64             derivedIdentitiesInit.add(derivedIdentity);
  65         }
  66         this.derivedIdentities = ImmutableSet.copyOf(derivedIdentitiesInit);
  67     }
  68
  69     private void initBaseIdentity(final IdentityEffectiveStatementImpl baseIdentity) {
  70         this.baseIdentity = baseIdentity;
  71     }
  72
  73     private void initSubstatementCollections() {
  74         Collection<? extends EffectiveStatement<?, ?>> effectiveSubstatements = effectiveSubstatements();
  75
  76         List<UnknownSchemaNode> unknownNodesInit = new LinkedList<>();
  77
  78         for (EffectiveStatement<?, ?> effectiveStatement : effectiveSubstatements) {
  79             if (effectiveStatement instanceof UnknownSchemaNode) {
  80                 UnknownSchemaNode unknownNode = (UnknownSchemaNode) effectiveStatement;
  81                 unknownNodesInit.add(unknownNode);
  82             }
  83         }
  84
  85         this.unknownNodes = ImmutableList.copyOf(unknownNodesInit);
  86     }
  87
  88     @Override
  89     public QName getQName() {
  90         return qname;
  91     }
  92
  93     @Override
  94     public IdentitySchemaNode getBaseIdentity() {
  95         return baseIdentity;
  96     }
  97
  98     @Override
  99     public Set<IdentitySchemaNode> getDerivedIdentities() {
 100         return Collections.unmodifiableSet(derivedIdentities);
 101     }
 102
 103     @Override
 104     public SchemaPath getPath() {
 105         return path;
 106     }
 107
 108     @Override
 109     public List<UnknownSchemaNode> getUnknownSchemaNodes() {
 110         return unknownNodes;
 111     }
 112
 113     @Override
 114     public int hashCode() {
 115         final int prime = 31;
 116         int result = 1;
 117         result = prime * result + Objects.hashCode(qname);
 118         result = prime * result + Objects.hashCode(path);
 119         return result;
 120     }
 121
 122     @Override
 123     public boolean equals(final Object obj) {
 124         if (this == obj) {
 125             return true;
 126         }
 127         if (obj == null) {
 128             return false;
 129         }
 130         if (getClass() != obj.getClass()) {
 131             return false;
 132         }
 133         IdentityEffectiveStatementImpl other = (IdentityEffectiveStatementImpl) obj;
 134         return Objects.equals(qname, other.qname) && Objects.equals(path, other.path);
 135     }
 136
 137     @Override
 138     public String toString() {
 139         StringBuilder sb = new StringBuilder(
 140                 IdentityEffectiveStatementImpl.class.getSimpleName());
 141         sb.append("[");
 142         sb.append("base=").append(baseIdentity);
 143         sb.append(", qname=").append(qname);
 144         sb.append("]");
 145         return sb.toString();
 146     }
 147 }