yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/meta/RpcStatementSupport.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.yang.parser.rfc7950.stmt.meta;
   9
  10 import static com.google.common.base.Preconditions.checkState;
  11 import static com.google.common.base.Verify.verify;
  12 import static java.util.Objects.requireNonNull;
  13
  14 import com.google.common.annotations.Beta;
  15 import com.google.common.collect.ImmutableList;
  16 import org.eclipse.jdt.annotation.NonNull;
  17 import org.opendaylight.yangtools.yang.common.QName;
  18 import org.opendaylight.yangtools.yang.model.api.Status;
  19 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  20 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  21 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  22 import org.opendaylight.yangtools.yang.model.api.stmt.InputStatement;
  23 import org.opendaylight.yangtools.yang.model.api.stmt.OutputStatement;
  24 import org.opendaylight.yangtools.yang.model.api.stmt.RpcEffectiveStatement;
  25 import org.opendaylight.yangtools.yang.model.api.stmt.RpcStatement;
  26 import org.opendaylight.yangtools.yang.model.api.stmt.StatusEffectiveStatement;
  27 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
  28 import org.opendaylight.yangtools.yang.model.ri.stmt.EffectiveStatements;
  29 import org.opendaylight.yangtools.yang.model.spi.meta.EffectiveStatementMixins.EffectiveStatementWithFlags.FlagsBuilder;
  30 import org.opendaylight.yangtools.yang.model.spi.meta.SubstatementIndexingException;
  31 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractSchemaTreeStatementSupport;
  32 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  33 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  34 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  35 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
  36 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  37 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  38 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
  39
  40 @Beta
  41 public final class RpcStatementSupport extends AbstractSchemaTreeStatementSupport<RpcStatement, RpcEffectiveStatement> {
  42     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(
  43         YangStmtMapping.RPC)
  44         .addOptional(YangStmtMapping.DESCRIPTION)
  45         .addAny(YangStmtMapping.GROUPING)
  46         .addAny(YangStmtMapping.IF_FEATURE)
  47         .addOptional(YangStmtMapping.INPUT)
  48         .addOptional(YangStmtMapping.OUTPUT)
  49         .addOptional(YangStmtMapping.REFERENCE)
  50         .addOptional(YangStmtMapping.STATUS)
  51         .addAny(YangStmtMapping.TYPEDEF)
  52         .build();
  53     private static final @NonNull RpcStatementSupport RFC6020_INSTANCE = new RpcStatementSupport(
  54         InputStatementSupport.rfc6020Instance(), OutputStatementSupport.rfc6020Instance());
  55     private static final @NonNull RpcStatementSupport RFC7950_INSTANCE = new RpcStatementSupport(
  56         InputStatementSupport.rfc7950Instance(), OutputStatementSupport.rfc7950Instance());
  57
  58     private final InputStatementSupport implicitInput;
  59     private final OutputStatementSupport implicitOutput;
  60
  61     private RpcStatementSupport(final InputStatementSupport implicitInput,
  62             final OutputStatementSupport implicitOutput) {
  63         super(YangStmtMapping.RPC, StatementPolicy.reject());
  64         this.implicitInput = requireNonNull(implicitInput);
  65         this.implicitOutput = requireNonNull(implicitOutput);
  66     }
  67
  68     public static @NonNull RpcStatementSupport rfc6020Instance() {
  69         return RFC6020_INSTANCE;
  70     }
  71
  72     public static @NonNull RpcStatementSupport rfc7950Instance() {
  73         return RFC7950_INSTANCE;
  74     }
  75
  76     @Override
  77     public void onFullDefinitionDeclared(final Mutable<QName, RpcStatement, RpcEffectiveStatement> stmt) {
  78         super.onFullDefinitionDeclared(stmt);
  79
  80         verify(stmt instanceof StatementContextBase);
  81         if (StmtContextUtils.findFirstDeclaredSubstatement(stmt, InputStatement.class) == null) {
  82             ((StatementContextBase<?, ?, ?>) stmt).appendImplicitSubstatement(implicitInput, null);
  83         }
  84         if (StmtContextUtils.findFirstDeclaredSubstatement(stmt, OutputStatement.class) == null) {
  85             ((StatementContextBase<?, ?, ?>) stmt).appendImplicitSubstatement(implicitOutput, null);
  86         }
  87     }
  88
  89     @Override
  90     protected SubstatementValidator getSubstatementValidator() {
  91         return SUBSTATEMENT_VALIDATOR;
  92     }
  93
  94     @Override
  95     protected RpcStatement createDeclared(final StmtContext<QName, RpcStatement, ?> ctx,
  96             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  97         return DeclaredStatements.createRpc(ctx.getArgument(), substatements);
  98     }
  99
 100     @Override
 101     protected RpcEffectiveStatement createEffective(final Current<QName, RpcStatement> stmt,
 102             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 103         checkState(!substatements.isEmpty(), "Missing implicit input/output statements at %s", stmt.sourceReference());
 104
 105         try {
 106             return EffectiveStatements.createRpc(stmt.declared(), substatements, stmt.effectivePath(),
 107                 computeFlags(substatements));
 108         } catch (SubstatementIndexingException e) {
 109             throw new SourceException(e.getMessage(), stmt, e);
 110         }
 111     }
 112
 113     private static int computeFlags(final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 114         return new FlagsBuilder()
 115                 .setStatus(findFirstArgument(substatements, StatusEffectiveStatement.class, Status.CURRENT))
 116                 .toFlags();
 117     }
 118 }