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1
23
24 package org.apache.slide.webdav.method.report;
25
26 import java.io.IOException  ;
27 import java.util.Enumeration ;
28 import java.util.Iterator ;
29 import java.util.List ;
30
31 import org.apache.slide.common.NamespaceAccessToken;
32 import org.apache.slide.common.PropertyParseException;
33 import org.apache.slide.common.RequestedProperties;
34 import org.apache.slide.common.RequestedPropertiesImpl;
35 import org.apache.slide.common.SlideException;
36 import org.apache.slide.common.SlideToken;
37 import org.apache.slide.content.NodeProperty;
38 import org.apache.slide.content.NodeRevisionDescriptor;
39 import org.apache.slide.content.NodeRevisionDescriptors;
40 import org.apache.slide.structure.ObjectNode;
41 import org.apache.slide.util.XMLValue;
42 import org.apache.slide.webdav.WebdavServletConfig;
43 import org.apache.slide.webdav.util.DeltavConstants;
44 import org.apache.slide.webdav.util.PreconditionViolationException;
45 import org.apache.slide.webdav.util.UriHandler;
46 import org.apache.slide.webdav.util.ViolatedPrecondition;
47 import org.apache.slide.webdav.util.WebdavStatus;
48 import org.apache.slide.webdav.util.WebdavUtils;
49 import org.apache.slide.webdav.util.resourcekind.AbstractResourceKind;
50 import org.apache.slide.webdav.util.resourcekind.ResourceKind;
51 import org.apache.slide.webdav.util.resourcekind.VersionControlled;
52 import org.jdom.Element;
53 import org.jdom.JDOMException;
54
55
56
60 public class LocateByHistoryReport extends AbstractReport implements DeltavConstants {
61
62 protected RequestedProperties requestedProperties = null;
63 protected XMLValue versionHistorySet = null;
64
65
74 public LocateByHistoryReport(SlideToken slideToken, NamespaceAccessToken token, WebdavServletConfig config, String slideContextPath) {
75 super(slideToken, token, config, slideContextPath);
76 }
77
78
86 public void init(String resourcePath, Element locateByHistoryElm) throws PreconditionViolationException {
87 List childrenList = locateByHistoryElm.getChildren();
88 if (childrenList.size() != 2) {
89 throw new PreconditionViolationException(
90 new ViolatedPrecondition("invalid-locate-by-history",
91 WebdavStatus.SC_BAD_REQUEST,
92 "DAV:locate-by-history element must have 2 children: DAV:version-history-set and DAV:prop"),
93 resourcePath
94 );
95 }
96
97 Element versionHistorySetElm = null;
98 Element propElm = null;
99 if ( E_VERSION_HISTORY_SET.equals(((Element)childrenList.get(0)).getName()) &&
100 E_PROP.equals(((Element)childrenList.get(1)).getName()) ) {
101 versionHistorySetElm = (Element)childrenList.get(0);
102 propElm = (Element)childrenList.get(1);
103 }
104 else if ( E_PROP.equals(((Element)childrenList.get(0)).getName()) &&
105 E_VERSION_HISTORY_SET.equals(((Element)childrenList.get(1)).getName()) ) {
106 propElm = (Element)childrenList.get(0);
107 versionHistorySetElm = (Element)childrenList.get(1);
108 }
109 else {
110 throw new PreconditionViolationException(
111 new ViolatedPrecondition("invalid-locate-by-history",
112 WebdavStatus.SC_BAD_REQUEST,
113 "DAV:locate-by-history element must have 2 children: DAV:version-history-set and DAV:prop"),
114 resourcePath
115 );
116 }
117
118 if ( ! WebdavUtils.isCollection(token, slideToken, resourcePath) ) {
120 throw new PreconditionViolationException(
121 new ViolatedPrecondition("must-be-collection",
122 WebdavStatus.SC_BAD_REQUEST,
123 "the request-URI must specify a collection"),
124 resourcePath
125 );
126 }
127
128 this.versionHistorySet =
129 new XMLValue(versionHistorySetElm.getChildren(E_HREF, DNSP));
130
131 UriHandler uriHandler = null;
133 String href = null;
134 boolean isVersionHistory = false;
135 Iterator iterator = versionHistorySet.getHrefStrings().iterator();
136 while (iterator.hasNext()) {
137 href = (String )iterator.next();
138 uriHandler = UriHandler.getUriHandler(WebdavUtils.getSlidePath(href, slideContextPath));
139 isVersionHistory = uriHandler.isHistoryUri();
140 if (!isVersionHistory) {
141 break;
142 }
143 }
144 if (!isVersionHistory) {
145 throw new PreconditionViolationException(
146 new ViolatedPrecondition(C_MUST_BE_VERSION_HISTORY,
147 WebdavStatus.SC_CONFLICT),
148 resourcePath
149 );
150 }
151
152 try {
153 this.requestedProperties = new RequestedPropertiesImpl(propElm);
154 }
155 catch (PropertyParseException e) {
156 throw new PreconditionViolationException(
157 new ViolatedPrecondition("invalid-prop",
158 WebdavStatus.SC_BAD_REQUEST,
159 e.getMessage()),
160 resourcePath
161 );
162 }
163 }
164
165
175 public void execute(String resourcePath, Element multistatusElm, int depth) throws SlideException, IOException {
176 if (depth < 0) {
177 return;
178 }
179
180 NodeRevisionDescriptor nrd = null;
181 NodeRevisionDescriptors nrds = null;
182 ResourceKind resourceKind = null;
183 String versionHistoryUri = null;
184 ObjectNode collectionNode = structure.retrieve(slideToken, resourcePath);
185 Enumeration children = structure.getChildren(slideToken, collectionNode);
186 while (children.hasMoreElements()) {
187
188 ObjectNode child = (ObjectNode)children.nextElement();
189 if (child.hasChildren()) {
190 execute(child.getUri(), multistatusElm, depth-1);
191 }
192 else {
193 nrds = content.retrieve(slideToken, child.getUri());
194 nrd = content.retrieve(slideToken, nrds);
195 resourceKind = AbstractResourceKind.determineResourceKind(token, child.getUri(), nrd);
196 versionHistoryUri = null;
197
198 if (resourceKind instanceof VersionControlled) {
199 versionHistoryUri = getHistoryUriOfVCR(nrd);
200 }
201
202 if (versionHistoryUri != null) {
203 boolean found = false;
204 Iterator iterator = versionHistorySet.iterator();
205 String currentHistoryUri = null;
206 while ( !found && iterator.hasNext() ) {
207 currentHistoryUri = ((Element)iterator.next()).getText();
208 if (currentHistoryUri != null) {
209 currentHistoryUri = WebdavUtils.getSlidePath(currentHistoryUri, slideContextPath);
210 }
211 found = versionHistoryUri.equals(currentHistoryUri);
212 }
213 if (found) {
214 multistatusElm.addContent(getResponseElement(slideToken, child.getUri(), nrd.getRevisionNumber(), requestedProperties));
215 }
216 }
217 }
218 }
219 }
220
221 private String getHistoryUriOfVCR(NodeRevisionDescriptor revisionDescriptor) {
222
223 String historyUri = null;
224 NodeProperty property = revisionDescriptor.getProperty(P_CHECKED_IN);
225 if (property == null) {
226 property = revisionDescriptor.getProperty(P_CHECKED_OUT);
227 }
228 if ( (property != null) && (property.getValue() != null) ) {
229 try {
230 XMLValue xmlValue = new XMLValue(property.getValue().toString());
231 Iterator iterator = xmlValue.iterator();
232 if (iterator.hasNext()) {
233 String vrUri = ((Element)iterator.next()).getText();
234 UriHandler uriHandler = UriHandler.getUriHandler(vrUri);
235 if (uriHandler.isVersionUri()) {
236 historyUri = uriHandler.getAssociatedHistoryUri();
237 }
238 }
239 }
240 catch (JDOMException e) {}
241 }
242
243 return historyUri;
244 }
245 }
246
247 |
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