1/*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.xml.internal.xsom.impl;
27
28import com.sun.xml.internal.xsom.SCD;
29import com.sun.xml.internal.xsom.XSAnnotation;
30import com.sun.xml.internal.xsom.XSComponent;
31import com.sun.xml.internal.xsom.XSSchemaSet;
32import com.sun.xml.internal.xsom.util.ComponentNameFunction;
33import com.sun.xml.internal.xsom.impl.parser.SchemaDocumentImpl;
34import com.sun.xml.internal.xsom.parser.SchemaDocument;
35import org.xml.sax.Locator;
36
37import javax.xml.namespace.NamespaceContext;
38import java.text.ParseException;
39import java.util.ArrayList;
40import java.util.Collection;
41import java.util.Collections;
42import java.util.List;
43
44public abstract class ComponentImpl implements XSComponent
45{
46    protected ComponentImpl( SchemaDocumentImpl _owner, AnnotationImpl _annon, Locator _loc, ForeignAttributesImpl fa ) {
47        this.ownerDocument = _owner;
48        this.annotation = _annon;
49        this.locator = _loc;
50        this.foreignAttributes = fa;
51    }
52
53    protected final SchemaDocumentImpl ownerDocument;
54    public SchemaImpl getOwnerSchema() {
55        if(ownerDocument==null)
56            return null;
57        else
58            return ownerDocument.getSchema();
59    }
60
61    public XSSchemaSet getRoot() {
62        if(ownerDocument==null)
63            return null;
64        else
65            return getOwnerSchema().getRoot();
66    }
67
68    public SchemaDocument getSourceDocument() {
69        return ownerDocument;
70    }
71
72    private AnnotationImpl annotation;
73    public final XSAnnotation getAnnotation() { return annotation; }
74
75    public XSAnnotation getAnnotation(boolean createIfNotExist) {
76        if(createIfNotExist && annotation==null) {
77            annotation = new AnnotationImpl();
78        }
79        return annotation;
80    }
81
82    private final Locator locator;
83    public final Locator getLocator() { return locator; }
84
85    /**
86     * Either {@link ForeignAttributesImpl} or {@link List}.
87     *
88     * Initially it's {@link ForeignAttributesImpl}, but it's lazily turned into
89     * a list when necessary.
90     */
91    private Object foreignAttributes;
92
93    public List<ForeignAttributesImpl> getForeignAttributes() {
94        Object t = foreignAttributes;
95
96        if(t==null)
97            return Collections.EMPTY_LIST;
98
99        if(t instanceof List)
100            return (List)t;
101
102        t = foreignAttributes = convertToList((ForeignAttributesImpl)t);
103        return (List)t;
104    }
105
106    public String getForeignAttribute(String nsUri, String localName) {
107        for( ForeignAttributesImpl fa : getForeignAttributes() ) {
108            String v = fa.getValue(nsUri,localName);
109            if(v!=null) return v;
110        }
111        return null;
112    }
113
114    private List<ForeignAttributesImpl> convertToList(ForeignAttributesImpl fa) {
115        List<ForeignAttributesImpl> lst = new ArrayList<ForeignAttributesImpl>();
116        while(fa!=null) {
117            lst.add(fa);
118            fa = fa.next;
119        }
120        return Collections.unmodifiableList(lst);
121    }
122
123    public Collection<XSComponent> select(String scd, NamespaceContext nsContext) {
124        try {
125            return SCD.create(scd,nsContext).select(this);
126        } catch (ParseException e) {
127            throw new IllegalArgumentException(e);
128        }
129    }
130
131    public XSComponent selectSingle(String scd, NamespaceContext nsContext) {
132        try {
133            return SCD.create(scd,nsContext).selectSingle(this);
134        } catch (ParseException e) {
135            throw new IllegalArgumentException(e);
136        }
137    }
138
139    @Override
140    public String toString() {
141        return apply(new ComponentNameFunction());
142    }
143}
144