-/**
+/*
* Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
*/
package org.opendaylight.yangtools.yang.parser.stmt.rfc6020;
+import com.google.common.base.Preconditions;
+import java.util.Set;
+import java.util.function.Predicate;
+import org.antlr.v4.runtime.ANTLRInputStream;
+import org.antlr.v4.runtime.CommonTokenStream;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionLexer;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionParser;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionParser.Identifier_ref_argContext;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionParser.If_feature_exprContext;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionParser.If_feature_factorContext;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionParser.If_feature_termContext;
+import org.opendaylight.yangtools.antlrv4.code.gen.IfFeatureExpressionParserBaseVisitor;
import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
+import org.opendaylight.yangtools.yang.common.YangVersion;
+import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.IfFeatureStatement;
+import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
+import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
+import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.IfFeatureEffectiveStatementImpl;
-public class IfFeatureStatementImpl extends AbstractDeclaredStatement<QName>
+public class IfFeatureStatementImpl extends AbstractDeclaredStatement<Predicate<Set<QName>>>
implements IfFeatureStatement {
+ private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
+ .IF_FEATURE)
+ .build();
protected IfFeatureStatementImpl(
- StmtContext<QName, IfFeatureStatement, ?> context) {
+ final StmtContext<Predicate<Set<QName>>, IfFeatureStatement, ?> context) {
super(context);
}
public static class Definition
extends
- AbstractStatementSupport<QName, IfFeatureStatement, EffectiveStatement<QName, IfFeatureStatement>> {
+ AbstractStatementSupport<Predicate<Set<QName>>, IfFeatureStatement, EffectiveStatement<Predicate<Set<QName>>, IfFeatureStatement>> {
public Definition() {
- super(Rfc6020Mapping.IF_FEATURE);
+ super(YangStmtMapping.IF_FEATURE);
}
@Override
- public QName parseArgumentValue(StmtContext<?, ?, ?> ctx, String value) {
- return Utils.qNameFromArgument(ctx, value);
+ public Predicate<Set<QName>> parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
+ if(YangVersion.VERSION_1_1.equals(ctx.getRootVersion())) {
+ return parseIfFeatureExpression(ctx, value);
+ } else {
+ final QName qName = StmtContextUtils.qnameFromArgument(ctx, value);
+ return setQNames -> setQNames.contains(qName);
+ }
}
@Override
public IfFeatureStatement createDeclared(
- StmtContext<QName, IfFeatureStatement, ?> ctx) {
+ final StmtContext<Predicate<Set<QName>>, IfFeatureStatement, ?> ctx) {
return new IfFeatureStatementImpl(ctx);
}
@Override
- public EffectiveStatement<QName, IfFeatureStatement> createEffective(
- StmtContext<QName, IfFeatureStatement, EffectiveStatement<QName, IfFeatureStatement>> ctx) {
- throw new UnsupportedOperationException();
+ public EffectiveStatement<Predicate<Set<QName>>, IfFeatureStatement> createEffective(
+ final StmtContext<Predicate<Set<QName>>, IfFeatureStatement, EffectiveStatement<Predicate<Set<QName>>, IfFeatureStatement>> ctx) {
+ return new IfFeatureEffectiveStatementImpl(ctx);
}
+ @Override
+ protected SubstatementValidator getSubstatementValidator() {
+ return SUBSTATEMENT_VALIDATOR;
+ }
+
+ private static Predicate<Set<QName>> parseIfFeatureExpression(final StmtContext<?, ?, ?> ctx, final String value) {
+ final IfFeatureExpressionLexer lexer = new IfFeatureExpressionLexer(new ANTLRInputStream(value));
+ final CommonTokenStream tokens = new CommonTokenStream(lexer);
+ final IfFeatureExpressionParser parser = new IfFeatureExpressionParser(tokens);
+
+ return new IfFeaturePredicateVisitor(ctx).visit(parser.if_feature_expr());
+ }
+
+ private static class IfFeaturePredicateVisitor extends IfFeatureExpressionParserBaseVisitor<Predicate<Set<QName>>> {
+ private final StmtContext<?, ?, ?> stmtCtx;
+
+ public IfFeaturePredicateVisitor(final StmtContext<?, ?, ?> ctx) {
+ this.stmtCtx = Preconditions.checkNotNull(ctx);
+ }
+
+ @Override
+ public Predicate<Set<QName>> visitIf_feature_expr(final If_feature_exprContext ctx) {
+ if (ctx.if_feature_expr() != null) {
+ return visitIf_feature_term(ctx.if_feature_term()).or(visitIf_feature_expr(ctx.if_feature_expr()));
+ } else {
+ return visitIf_feature_term(ctx.if_feature_term());
+ }
+ }
+
+ @Override
+ public Predicate<Set<QName>> visitIf_feature_term(final If_feature_termContext ctx) {
+ if (ctx.if_feature_term() != null) {
+ return visitIf_feature_factor(ctx.if_feature_factor()).and(visitIf_feature_term(ctx.if_feature_term()));
+ } else {
+ return visitIf_feature_factor(ctx.if_feature_factor());
+ }
+ }
+
+ @Override
+ public Predicate<Set<QName>> visitIf_feature_factor(final If_feature_factorContext ctx) {
+ if (ctx.if_feature_expr() != null) {
+ return visitIf_feature_expr(ctx.if_feature_expr());
+ } else if (ctx.if_feature_factor() != null) {
+ return visitIf_feature_factor(ctx.if_feature_factor()).negate();
+ } else if (ctx.identifier_ref_arg() != null) {
+ return visitIdentifier_ref_arg(ctx.identifier_ref_arg());
+ }
+
+ throw new SourceException("Unexpected grammar context during parsing of IfFeature expression. "
+ + "Most probably IfFeature grammar has been changed.", stmtCtx.getStatementSourceReference());
+ }
+
+ @Override
+ public Predicate<Set<QName>> visitIdentifier_ref_arg(final Identifier_ref_argContext ctx) {
+ final QName featureQName = StmtContextUtils.qnameFromArgument(stmtCtx, ctx.getText());
+ return setQNames -> setQNames.contains(featureQName);
+ }
+ }
}
@Override
- public QName getName() {
+ public Predicate<Set<QName>> getIfFeaturePredicate() {
return argument();
}
-
}
Code Review / yangtools.git / blobdiff