2 * Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.yangtools.yang.data.util;
10 import com.google.common.annotations.Beta;
11 import com.google.common.base.Preconditions;
12 import java.io.IOException;
14 import java.util.Objects;
15 import org.opendaylight.yangtools.yang.common.QName;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
17 import org.opendaylight.yangtools.yang.data.api.schema.stream.NormalizedNodeStreamWriter;
18 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
21 * Utility abstract class for tracking parser state, as needed by StAX-like parser.
22 * This class is to be used only by respective XML and JSON parsers in yang-data-codec-xml and yang-data-codec-gson.
25 public abstract class AbstractNodeDataWithSchema {
26 private final DataSchemaNode schema;
27 private Map<QName, String> attributes;
29 public AbstractNodeDataWithSchema(final DataSchemaNode schema) {
30 this.schema = Preconditions.checkNotNull(schema);
34 * Return the associated schema node.
36 * @return Associated schema node.
38 public final DataSchemaNode getSchema() {
43 * Set the associated attributes.
45 * @param attributes parsed attributes
47 public final void setAttributes(final Map<QName, String> attributes) {
48 Preconditions.checkState(this.attributes == null, "Node '%s' has already set its attributes to %s.",
49 getSchema().getQName(), this.attributes);
50 this.attributes = attributes;
54 * Return the associated attributes.
56 * @return associated attributes
58 public final Map<QName, String> getAttributes() {
63 * Emit this node's events into the specified writer.
65 * @param writer Target writer
66 * @throws IOException reported when thrown by the writer.
68 public abstract void write(NormalizedNodeStreamWriter writer) throws IOException;
70 protected final NodeIdentifier provideNodeIdentifier() {
71 return NodeIdentifier.create(schema.getQName());
75 public int hashCode() {
78 result = prime * result + Objects.hashCode(schema);
83 public boolean equals(final Object obj) {
90 if (getClass() != obj.getClass()) {
93 final AbstractNodeDataWithSchema other = (AbstractNodeDataWithSchema) obj;
94 return schema.equals(other.schema);