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16 package org.outerj.daisy.navigation.impl;
17
18 import org.outerj.daisy.repository.VariantKey;
19 import org.outerj.daisy.repository.RepositoryException;
20 import org.outerj.daisy.navigation.NavigationVersionMode;
21 import org.outerx.daisy.x10.SearchResultDocument;
22 import org.outerx.daisy.x10.LinkValueType;
23 import org.apache.xmlbeans.QNameSet;
24 import org.apache.xmlbeans.XmlObject;
25 import org.apache.xmlbeans.SchemaType;
26 import org.apache.xmlbeans.XmlString;
27
28 import java.util.Locale  ;
29 import java.util.List ;
30 import java.util.Map ;
31 import java.util.HashMap ;
32
33
37 public class QueryNode extends AbstractParentNode {
38 private final String query;
39 private final String extraCond;
40 private final long navigationBranchId;
41 private final long navigationLanguageId;
42 private final NodeVisibility nodeVisibility;
43 private final CommonNavigationManager.Context context;
44 private final NavigationVersionMode versionMode;
45 private boolean loaded = false;
46
47 public QueryNode(String query, String extraCond, NodeVisibility nodeVisibility,
48 CommonNavigationManager.Context context, long navigationBranchId, long navigationLanguageId,
49 NavigationVersionMode versionMode) {
50 this.query = query;
51 this.extraCond = extraCond;
52 this.nodeVisibility = nodeVisibility;
53 this.context = context;
54 this.navigationBranchId = navigationBranchId;
55 this.navigationLanguageId = navigationLanguageId;
56 this.versionMode = versionMode;
57 }
58
59 private synchronized void load() throws RepositoryException {
60 if (!loaded) {
61 SearchResultDocument searchResult;
62 try {
63 Map queryOptions = null;
64 if (versionMode == NavigationVersionMode.LAST) {
65 queryOptions = new HashMap (4);
66 queryOptions.put("search_last_version", "true");
67 }
68 searchResult = context.getRepository().getQueryManager().performQuery(query, extraCond, queryOptions, Locale.getDefault());
69 } catch (Throwable e) {
70 add(new ErrorNode("(error executing query)"));
71 context.getLogger().error("Error executing query in navigation tree: " + query, e);
72 loaded = true;
73 return;
74 }
75
76 SearchResultDocument.SearchResult.Rows.Row[] rows = searchResult.getSearchResult().getRows().getRowArray();
77
78 if (rows.length > 0) {
79 XmlObject[] values = rows[0].selectChildren(QNameSet.ALL);
81 for (int i = 0; i < values.length; i++) {
82 SchemaType schemaType = values[i].schemaType();
83 if (schemaType != XmlString.type && schemaType != LinkValueType.type) {
84 add(new ErrorNode("(query selects unsupported type of value: " + schemaType.getShortJavaName() + ")"));
85 loaded = true;
86 return;
87 }
88 }
89
90 ParentNodeInfo[] parentNodes = new ParentNodeInfo[values.length];
91 parentNodes[0] = new ParentNodeInfo(this, null);
92
93 for (int i = 0; i < rows.length; i++) {
94 values = rows[i].selectChildren(QNameSet.ALL);
95 int createGroupsFrom = values.length - 1;
96 for (int k = 0; k < values.length -1; k++) {
97 String label = getLabel(values[k]);
98 if (parentNodes[k + 1] == null || !(parentNodes[k + 1]).label.equals(label)) {
99 createGroupsFrom = k;
100 break;
101 }
102 }
103 for (int k = createGroupsFrom; k < values.length - 1; k++) {
104 String label = getLabel(values[k]);
105 String nodeId = NavigationUtil.makeNodeIdValid(label);
106 if (nodeId == null)
107 nodeId = "qn" + rows[i].getDocumentId(); GroupNode newGroup = new GroupNode(nodeId, label, nodeVisibility);
109 parentNodes[k + 1] = new ParentNodeInfo(newGroup, label);
110 parentNodes[k].node.add(newGroup);
111 }
112 VariantKey variantKey = new VariantKey(rows[i].getDocumentId(), rows[i].getBranchId(), rows[i].getLanguageId());
113 DocumentFromQueryNode newNode = new DocumentFromQueryNode(variantKey, getLabel(values[values.length - 1]), nodeVisibility, context, navigationBranchId, navigationLanguageId, versionMode);
114 parentNodes[parentNodes.length -1].node.add(newNode);
115 }
116 }
117
118 loaded = true;
119 }
120 }
121
122 private String getLabel(XmlObject xmlObject) {
123 if (xmlObject instanceof XmlString) {
124 String label = ((XmlString)xmlObject).getStringValue();
125 if (label == null || label.length() == 0)
126 return "(blank)";
127 else
128 return label;
129 } else {
130 return xmlObject.toString();
131 }
132 }
133
134 static final class ParentNodeInfo {
135 AbstractParentNode node;
136 String label;
137
138 public ParentNodeInfo(AbstractParentNode node, String label) {
139 this.node = node;
140 this.label = label;
141 }
142 }
143
144 public void searchPath(String [] path, int pos, long branchId, long languageId, Node[] foundPath) throws RepositoryException {
145 load();
146 super.searchPath(path, pos, branchId, languageId, foundPath);
147 }
148
149 public List getExpandedChildList() throws RepositoryException {
150 load();
151 return super.getExpandedChildList();
152 }
153
154 public boolean isVisible(long userId, long[] roleId, Node[] activeNodePath, int activeNodePathPos) throws RepositoryException {
155 throw new RuntimeException ("isVisible not supported on this node.");
156 }
157
158 public boolean checkId(String id, long branchId, long languageId) {
159 throw new UnsupportedOperationException ("checkId not supported on this node.");
160 }
161
162 public boolean isExpandable() {
163 return true;
164 }
165
166 public boolean isIdentifiable() {
167 return false;
168 }
169 }
170 |
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