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21 package com.jaspersoft.jasperserver.api.engine.jasperreports.util.repo;
22
23 import java.io.IOException  ;
24 import java.io.InputStream ;
25 import java.net.URL ;
26 import java.net.URLConnection ;
27
28 import org.apache.commons.logging.Log;
29 import org.apache.commons.logging.LogFactory;
30
31 import com.jaspersoft.jasperserver.api.engine.jasperreports.util.RepositoryContext;
32 import com.jaspersoft.jasperserver.api.metadata.common.domain.FileResource;
33 import com.jaspersoft.jasperserver.api.metadata.common.domain.FileResourceData;
34 import com.jaspersoft.jasperserver.api.metadata.common.domain.Folder;
35 import com.jaspersoft.jasperserver.api.metadata.common.service.JSResourceNotFoundException;
36 import com.jaspersoft.jasperserver.api.metadata.common.service.RepositoryService;
37 import com.jaspersoft.jasperserver.api.metadata.jasperreports.domain.ReportUnit;
38
39
40
44 public class RepositoryConnection extends URLConnection
45 {
46 private static final Log log = LogFactory.getLog(RepositoryConnection.class);
47
48 private final RepositoryContext repositoryContext;
49
50 public RepositoryConnection(RepositoryContext repository, URL url)
51 {
52 super(url);
53
54 this.repositoryContext = repository;
55 }
56
57 public void connect() throws IOException
58 {
59 connected = true;
60 }
61
62 public InputStream getInputStream() throws IOException
63 {
64 try {
65 InputStream data = null;
66 String path = url.getPath();
67 if (!path.startsWith(Folder.SEPARATOR)) {
68 ReportUnit reportUnit = repositoryContext.getReportUnit();
69 FileResource resource = null;
70 if (reportUnit != null) {
71 resource = reportUnit.getResourceLocal(path);
72 }
73
74 if (resource == null) {
75 path = repositoryContext.getContextURI() + Folder.SEPARATOR + path;
76 } else {
77 if (resource.isReference()) {
78 path = resource.getReferenceURI();
79 }
80 else if (resource.hasData()) {
81 if (log.isDebugEnabled()) {
82 log.debug("Loading resource \"" + resource.getName() + "\" from in-memory report unit");
83 }
84 data = resource.getDataStream();
85 if (resource.getFileType().equals(FileResource.TYPE_JRXML)) {
86 data = repositoryContext.getCompiledReportProvider().getCompiledReport(
87 repositoryContext.getExecutionContext(),
88 data);
89 }
90 } else {
91 path = resource.getURIString();
92 }
93 }
94 }
95
96 if (data == null) {
97 if (log.isDebugEnabled()) {
98 log.debug("Loading resource \"" + path + "\" from repository");
99 }
100 RepositoryService repository = repositoryContext.getRepository();
101 FileResource resource = (FileResource) repository.getResource(repositoryContext.getExecutionContext(), path);
102 while (resource.isReference()) {
103 resource = (FileResource) repository.getResource(repositoryContext.getExecutionContext(), resource.getReferenceURI());
104 }
105 if (resource.getFileType().equals(FileResource.TYPE_JRXML)) {
106 data = repositoryContext.getCompiledReportProvider().getCompiledReport(
107 repositoryContext.getExecutionContext(),
108 path);
109 } else {
110 FileResourceData resourceData = repository.getResourceData(repositoryContext.getExecutionContext(), path);
111 data = resourceData.getDataStream();
112 }
113 }
114
115 return data;
116 } catch (JSResourceNotFoundException e) {
117 throw new IOException (e.getMessage());
118 }
119 }
120 }
121 |
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