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16 package org.outerj.daisy.navigation.clientimpl;
17
18 import org.outerj.daisy.navigation.*;
19 import org.outerj.daisy.repository.clientimpl.RemoteRepositoryImpl;
20 import org.outerj.daisy.repository.clientimpl.infrastructure.DaisyHttpClient;
21 import org.outerj.daisy.repository.RepositoryException;
22 import org.outerj.daisy.repository.VariantKey;
23 import org.xml.sax.ContentHandler  ;
24 import org.xml.sax.SAXException ;
25 import org.xml.sax.XMLReader ;
26 import org.xml.sax.InputSource ;
27 import org.apache.commons.httpclient.HttpMethod;
28 import org.apache.commons.httpclient.NameValuePair;
29 import org.apache.commons.httpclient.methods.GetMethod;
30 import org.apache.commons.httpclient.methods.PostMethod;
31 import org.outerx.daisy.x10Navigationspec.NavigationLookupResultDocument;
32 import org.outerx.daisy.x10Navigationspec.NavigationLookupDocument;
33
34 import javax.xml.parsers.SAXParserFactory ;
35 import javax.xml.parsers.ParserConfigurationException ;
36 import java.io.IOException ;
37 import java.util.ArrayList ;
38 import java.util.List ;
39
40 public class RemoteNavigationManager implements NavigationManager {
41 private RemoteRepositoryImpl repository;
42
43 public RemoteNavigationManager(RemoteRepositoryImpl repository) {
44 this.repository = repository;
45 }
46
47 public void generateNavigationTree(ContentHandler contentHandler, NavigationParams navigationParams,
48 VariantKey activeDocument, boolean handleErrors) throws RepositoryException, SAXException {
49 DaisyHttpClient httpClient = repository.getHttpClient();
50 HttpMethod method = new GetMethod("/navigation");
51 List params = new ArrayList ();
52 VariantKey navigationDoc = navigationParams.getNavigationDoc();
53 params.add(new NameValuePair("navigationDocId", String.valueOf(navigationDoc.getDocumentId())));
54 params.add(new NameValuePair("navigationDocBranch", String.valueOf(navigationDoc.getBranchId())));
55 params.add(new NameValuePair("navigationDocLanguage", String.valueOf(navigationDoc.getLanguageId())));
56 params.add(new NameValuePair("navigationVersionMode", navigationParams.getVersionMode().toString()));
57 if (navigationParams.getActivePath() != null)
58 params.add(new NameValuePair("activePath", navigationParams.getActivePath()));
59 if (activeDocument != null) {
60 params.add(new NameValuePair("activeDocumentId", String.valueOf(activeDocument.getDocumentId())));
61 params.add(new NameValuePair("activeDocumentBranch", String.valueOf(activeDocument.getBranchId())));
62 params.add(new NameValuePair("activeDocumentLanguage", String.valueOf(activeDocument.getLanguageId())));
63 }
64 params.add(new NameValuePair("contextualized", String.valueOf(navigationParams.getContextualized())));
65 params.add(new NameValuePair("handleErrors", String.valueOf(handleErrors)));
66
67 NameValuePair[] queryString = (NameValuePair[])params.toArray(new NameValuePair[params.size()]);
68 method.setQueryString(queryString);
69
70 httpClient.executeMethod(method, null, false);
71 try {
72 SAXParserFactory parserFactory = SAXParserFactory.newInstance();
73 parserFactory.setNamespaceAware(true);
74 XMLReader xmlReader = parserFactory.newSAXParser().getXMLReader();
75 xmlReader.setContentHandler(contentHandler);
76 xmlReader.parse(new InputSource (method.getResponseBodyAsStream()));
77 } catch (IOException e) {
78 throw new RepositoryException(e);
79 } catch (ParserConfigurationException e) {
80 throw new RepositoryException(e);
81 } finally {
82 method.releaseConnection();
83 }
84 }
85
86 public void generatePreviewNavigationTree(ContentHandler contentHandler, String navigationTreeXml,
87 long branchId, long languageId) throws RepositoryException, SAXException {
88 DaisyHttpClient httpClient = repository.getHttpClient();
89 PostMethod method = new PostMethod("/navigationPreview");
90 method.addParameter("navigationXml", navigationTreeXml);
91 method.addParameter("branch", String.valueOf(branchId));
92 method.addParameter("language", String.valueOf(languageId));
93
94 httpClient.executeMethod(method, null, false);
95 try {
96 SAXParserFactory parserFactory = SAXParserFactory.newInstance();
97 parserFactory.setNamespaceAware(true);
98 XMLReader xmlReader = parserFactory.newSAXParser().getXMLReader();
99 xmlReader.setContentHandler(contentHandler);
100 xmlReader.parse(new InputSource (method.getResponseBodyAsStream()));
101 } catch (IOException e) {
102 throw new RepositoryException(e);
103 } catch (ParserConfigurationException e) {
104 throw new RepositoryException(e);
105 } finally {
106 method.releaseConnection();
107 }
108 }
109
110 public NavigationLookupResult lookup(String navigationPath, long requestedBranchId, long requestedLanguageId, LookupAlternative[] lookupAlternatives) throws RepositoryException {
111 DaisyHttpClient httpClient = repository.getHttpClient();
112 PostMethod method = new PostMethod("/navigationLookup");
113
114 NavigationLookupDocument navigationLookupDocument = NavigationLookupDocument.Factory.newInstance();
115 NavigationLookupDocument.NavigationLookup navigationLookupXml = navigationLookupDocument.addNewNavigationLookup();
116 navigationLookupXml.setNavigationPath(navigationPath);
117 if (requestedBranchId != -1)
118 navigationLookupXml.setRequestedBranchId(requestedBranchId);
119 if (requestedLanguageId != -1)
120 navigationLookupXml.setRequestedLanguageId(requestedLanguageId);
121
122 NavigationLookupDocument.NavigationLookup.LookupAlternative[] lookupAlternativesXml
123 = new NavigationLookupDocument.NavigationLookup.LookupAlternative[lookupAlternatives.length];
124
125 for (int i = 0; i < lookupAlternatives.length; i++) {
126 LookupAlternative lookupAlternative = lookupAlternatives[i];
127 lookupAlternativesXml[i] = NavigationLookupDocument.NavigationLookup.LookupAlternative.Factory.newInstance();
128 lookupAlternativesXml[i].setName(lookupAlternative.getName());
129 lookupAlternativesXml[i].setCollectionId(lookupAlternative.getCollectionId());
130 VariantKey navDocKey = lookupAlternative.getNavigationDoc();
131 lookupAlternativesXml[i].setNavDocId(navDocKey.getDocumentId());
132 lookupAlternativesXml[i].setNavBranchId(navDocKey.getBranchId());
133 lookupAlternativesXml[i].setNavLangId(navDocKey.getLanguageId());
134 lookupAlternativesXml[i].setNavVersionMode(lookupAlternative.getVersionMode().toString());
135 }
136
137 navigationLookupXml.setLookupAlternativeArray(lookupAlternativesXml);
138
139 method.setRequestBody(navigationLookupDocument.newInputStream());
140 NavigationLookupResultDocument resultDocument = (NavigationLookupResultDocument)httpClient.executeMethod(method, NavigationLookupResultDocument.class, true);
141 return NavigationLookupResult.createFromXml(resultDocument.getNavigationLookupResult());
142 }
143
144 public String reverseLookup(VariantKey document, VariantKey navigationDoc, NavigationVersionMode versionMode) throws RepositoryException {
145 throw new RuntimeException ("Method not yet implemented in remote implementation.");
146 }
147
148 public String reverseLookup(VariantKey document, VariantKey navigationDoc) throws RepositoryException {
149 throw new RuntimeException ("Method not yet implemented in remote implementation.");
150 }
151 }
152 |
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