+/**
+ * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.yangtools.yang.parser.stmt.rfc6020;
+
+import com.google.common.collect.ImmutableList;
+import java.util.Collection;
+import java.util.Objects;
+import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
+import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
+import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
+import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
+import org.opendaylight.yangtools.yang.model.api.meta.StatementSource;
+import org.opendaylight.yangtools.yang.model.api.stmt.ConfigStatement;
+
+abstract class EmptyConfigStatement implements ConfigStatement {
+ static final ConfigStatement FALSE = new EmptyConfigStatement() {
+ @Override
+ public boolean getValue() {
+ return false;
+ }
+
+ @Override
+ EffectiveStatement<Boolean, ConfigStatement> toEffective() {
+ return EmptyConfigEffectiveStatement.FALSE;
+ }
+ };
+
+ static final ConfigStatement TRUE = new EmptyConfigStatement() {
+ @Override
+ public boolean getValue() {
+ return true;
+ }
+
+ @Override
+ EffectiveStatement<Boolean, ConfigStatement> toEffective() {
+ return EmptyConfigEffectiveStatement.TRUE;
+ }
+ };
+
+ private EmptyConfigStatement() {
+ // Invisible on purpose
+ }
+
+ abstract EffectiveStatement<Boolean, ConfigStatement> toEffective();
+
+ @Override
+ public final Collection<? extends DeclaredStatement<?>> declaredSubstatements() {
+ return ImmutableList.of();
+ }
+
+ @Override
+ public final StatementDefinition statementDefinition() {
+ return Rfc6020Mapping.CONFIG;
+ }
+
+ @Override
+ public final String rawArgument() {
+ return Boolean.toString(getValue());
+ }
+
+ @Override
+ public final Boolean argument() {
+ return Boolean.valueOf(getValue());
+ }
+
+ @Override
+ public final StatementSource getStatementSource() {
+ return StatementSource.DECLARATION;
+ }
+
+ @Override
+ public final int hashCode() {
+ return Objects.hash(statementDefinition(), getStatementSource(), argument(),
+ rawArgument(), declaredSubstatements(), getValue());
+ }
+
+ @Override
+ public final boolean equals(final Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof ConfigStatement)) {
+ return false;
+ }
+
+ final ConfigStatement other = (ConfigStatement) obj;
+
+ return getValue() == other.getValue() && argument().equals(other.argument()) &&
+ rawArgument().equals(other.rawArgument()) &&
+ statementDefinition().equals(other.statementDefinition()) &&
+ getStatementSource().equals(other.getStatementSource()) &&
+ declaredSubstatements().equals(other.declaredSubstatements());
+ }
+}