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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.content.NodeRevisionNumber;
41 import org.apache.slide.structure.ObjectNode;
42 import org.apache.slide.util.Configuration;
43 import org.apache.slide.util.XMLValue;
44 import org.apache.slide.webdav.WebdavServletConfig;
45 import org.apache.slide.webdav.util.DeltavConstants;
46 import org.apache.slide.webdav.util.PreconditionViolationException;
47 import org.apache.slide.webdav.util.UriHandler;
48 import org.apache.slide.webdav.util.VersioningHelper;
49 import org.apache.slide.webdav.util.ViolatedPrecondition;
50 import org.apache.slide.webdav.util.WebdavStatus;
51 import org.apache.slide.webdav.util.resourcekind.AbstractResourceKind;
52 import org.apache.slide.webdav.util.resourcekind.ResourceKind;
53 import org.apache.slide.webdav.util.resourcekind.Version;
54 import org.apache.slide.webdav.util.resourcekind.VersionControlled;
55 import org.apache.slide.webdav.util.resourcekind.VersionHistory;
56 import org.jdom.Element;
57 import org.jdom.JDOMException;
58
59
63 public class VersionTreeReport extends AbstractReport implements DeltavConstants {
64
65 private RequestedProperties requestedProperties = null;
66 private VersioningHelper versioningHelper = null;
67
68
77 public VersionTreeReport(SlideToken slideToken, NamespaceAccessToken token, WebdavServletConfig config, String slideContextPath) {
78 super(slideToken, token, config, slideContextPath);
79 }
80
81
89 public void init(String resourcePath, Element versionTreeElm) throws PreconditionViolationException {
90 List childrenList = versionTreeElm.getChildren(E_PROP, DNSP);
91 if (childrenList.size() == 0) {
92 return;
93 }
94 else if (childrenList.size() > 1) {
95 throw new PreconditionViolationException(
96 new ViolatedPrecondition("at-most-one-prop-element",
97 WebdavStatus.SC_BAD_REQUEST,
98 "the DAV:version-tree element must contain at most one DAV:prop element"),
99 resourcePath
100 );
101 }
102
103 Element propElm = (Element)childrenList.get(0);
104 try {
105 requestedProperties = new RequestedPropertiesImpl(propElm);
106 }
107 catch (PropertyParseException e) {
108 throw new PreconditionViolationException(
109 new ViolatedPrecondition("invalid-prop-element",
110 WebdavStatus.SC_BAD_REQUEST,
111 e.getMessage()),
112 resourcePath
113 );
114 }
115 }
116
117
127 public void execute(String resourcePath, Element multistatusElm, int depth) throws SlideException, IOException {
128 if (depth < 0) {
129 return;
130 }
131 writeReport(resourcePath, multistatusElm);
132 ObjectNode onode = structure.retrieve(slideToken, resourcePath);
133 Enumeration childrenEnum = structure.getChildren(slideToken, onode);
134 while (childrenEnum.hasMoreElements()) {
135 ObjectNode cnode = (ObjectNode)childrenEnum.nextElement();
136 execute(cnode.getUri(), multistatusElm, depth-1);
137 }
138 }
139
140 public void setVersioningHelper(VersioningHelper versioningHelper) {
141 this.versioningHelper = versioningHelper;
142 }
143
144 private void writeReport(String resourcePath, Element multistatusElm) throws SlideException {
145 NodeRevisionDescriptors nrds = content.retrieve(slideToken, resourcePath);
146 NodeRevisionDescriptor nrd = content.retrieve(slideToken, nrds);
147 ResourceKind resourceKind =
148 AbstractResourceKind.determineResourceKind(token, nrds, nrd);
149
150 if (resourceKind instanceof VersionControlled) {
151 resourcePath = versioningHelper.getUriOfAssociatedVR(resourcePath);
152 nrds = content.retrieve(slideToken, resourcePath);
153 nrd = content.retrieve(slideToken, nrds);
154 resourceKind =
155 AbstractResourceKind.determineResourceKind(token, nrds, nrd);
156 }
157 else if (resourceKind instanceof VersionHistory) {
158 NodeProperty rootVersion = nrd.getProperty(P_ROOT_VERSION);
159 if (rootVersion != null) {
160 XMLValue value;
161 if (rootVersion.getValue() instanceof XMLValue) {
162 value = (XMLValue)rootVersion.getValue();
163 } else {
164 try {
165 value = new XMLValue(rootVersion.getValue().toString());
166 } catch (JDOMException e) {
167 throw new SlideException("Could not parse DAV:root-version: "+nrds.getUri());
168 }
169 }
170 Iterator i = value.iterator();
171 if (i.hasNext()) {
172 resourcePath = ((Element)i.next()).getText();
173 }
174 }
175 resourcePath += "/";
176 resourcePath += nrds.getInitialRevision();
177 nrds = content.retrieve(slideToken, resourcePath);
178 nrd = content.retrieve(slideToken, nrds);
179 resourceKind =
180 AbstractResourceKind.determineResourceKind(token, nrds, nrd);
181 }
182
183 if ( Configuration.useVersionControl() && (resourceKind instanceof Version) ) {
184 writeReport(nrds, slideToken, multistatusElm);
185 }
186 else {
187 multistatusElm.addContent(getErrorResponse(resourcePath, WebdavStatus.SC_FORBIDDEN, C_SUPPORTED_REPORT));
188 }
189 }
190
191 private void writeReport(NodeRevisionDescriptors nrds, SlideToken slideToken, Element multistatusElm) throws SlideException {
192 NodeRevisionDescriptor hNrd = content.retrieve(slideToken, nrds, NodeRevisionNumber.HIDDEN_0_0);
194 NodeProperty versionSetProperty = hNrd.getProperty(P_VERSION_SET);
195 if ( (versionSetProperty != null) && (versionSetProperty.getValue() != null) ) {
196 XMLValue xmlValue;
197 try {
198 xmlValue = new XMLValue(versionSetProperty.getValue().toString());
199 }
200 catch (JDOMException e) {
201 throw new SlideException("Could not parse DAV:version-set: "+nrds.getUri());
202 }
203 Iterator hrefIterator = xmlValue.iterator();
204
205 NodeRevisionNumber currentNrn= null;
206 UriHandler currentUh = null;
207 String currentPath = null;
208
209 while (hrefIterator.hasNext()) {
210 currentPath = ((Element)hrefIterator.next()).getText();
211 currentUh = UriHandler.getUriHandler(currentPath);
212 currentNrn = new NodeRevisionNumber(currentUh.getVersionName());
213 multistatusElm.addContent(getResponseElement(slideToken, currentPath, currentNrn, getRequestedVersionTreeProperties()));
214 }
215 }
216 }
217
218 private RequestedProperties getRequestedVersionTreeProperties() {
219 if (requestedProperties == null) {
220 requestedProperties = new RequestedPropertiesImpl();
221 }
222 return requestedProperties;
223 }
224 }
225
226 |
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