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21 package com.jaspersoft.jasperserver.api.metadata.common.service.impl.hibernate.persistent;
22
23 import java.sql.Blob  ;
24 import java.sql.SQLException ;
25
26 import org.apache.commons.logging.Log;
27 import org.apache.commons.logging.LogFactory;
28 import org.hibernate.Hibernate;
29
30 import com.jaspersoft.jasperserver.api.JSException;
31 import com.jaspersoft.jasperserver.api.JSExceptionWrapper;
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.Resource;
35 import com.jaspersoft.jasperserver.api.metadata.common.service.ResourceFactory;
36 import com.jaspersoft.jasperserver.api.metadata.common.service.impl.hibernate.ReferenceResolver;
37
38
45 public class RepoFileResource extends RepoResource {
46 private static final Log log = LogFactory.getLog(RepoFileResource.class);
47
48 private String fileType;
49 private Blob data;
50 private RepoFileResource reference;
51
52 public RepoFileResource() {
53 super();
54 }
55
56
59 public Blob getData() {
60 return data;
61 }
62
63 public void setData(Blob data) {
64 this.data = data;
65 }
66
67
70 public String getFileType() {
71 return fileType;
72 }
73
74 public void setFileType(String type) {
75 this.fileType = type;
76 }
77
78 public String getFinalFileType() {
79 RepoFileResource res = this;
80 while (res.isFileReference()) {
81 res = res.getReference();
82 }
83 return res.getFileType();
84 }
85
86 public boolean isFileReference() {
87 return getReference() != null;
88 }
89
90
93 public RepoFileResource getReference() {
94 return reference;
95 }
96
97 public void setReference(RepoFileResource reference) {
98 this.reference = reference;
99 }
100
101 protected Class getClientItf() {
102 return FileResource.class;
103 }
104
105 protected void copyTo(Resource clientRes, ResourceFactory resourceFactory) {
106 super.copyTo(clientRes, resourceFactory);
107
108 FileResource fileRes = (FileResource) clientRes;
109
110 if (isFileReference()) {
111 RepoFileResource ref = getReference();
112 fileRes.setFileType(null);
113 fileRes.setData(null);
114 fileRes.setReferenceURI(ref.getResourceURI());
115 } else {
116 fileRes.setFileType(getFileType());
117 fileRes.setReferenceURI(null);
119 }
120 }
121
122 public FileResourceData copyData() {
123 try {
124 if (isFileReference()) {
125 throw new JSException("File resource \"" + getResourceURI() + "\" is a reference and has no data");
126 }
127
128 FileResourceData resData;
129
130 Blob blob = getData();
131 if (blob == null) {
132 resData = new FileResourceData((byte[]) null);
133 } else {
134 resData = new FileResourceData(blob.getBinaryStream());
135 }
136
137 return resData;
138 } catch (SQLException e) {
139 log.error("Error while reading data blob of \"" + getResourceURI() + "\"", e);
140 throw new JSExceptionWrapper(e);
141 }
142 }
143
144 protected void copyFrom(Resource clientRes,
145 ReferenceResolver referenceResolver) {
146 super.copyFrom(clientRes, referenceResolver);
147
148 FileResource dataRes = (FileResource) clientRes;
149 if (dataRes.isReference()) {
150 setFileType(null);
151 setData(null);
152
153 RepoFileResource externalReference = (RepoFileResource) referenceResolver
154 .getExternalReference(dataRes.getReferenceURI(), RepoFileResource.class);
155
156 if (dataRes.getFileType() != null
157 && !dataRes.getFileType().equals(externalReference.getFinalFileType())) {
158 throw new JSException("The declared type of the resource ("
159 + dataRes.getFileType()
160 + ") does not match the actual type of the reference ("
161 + externalReference.getFileType() + ").");
162 }
163
164 setReference(externalReference);
165 } else {
166 setFileType(dataRes.getFileType());
167 copyDataFrom(dataRes);
168 setReference(null);
169 }
170 }
171
172 protected void copyDataFrom(FileResource dataRes) {
173 if (dataRes.isReference()) {
174 setData(null);
175 } else {
176 if (dataRes.hasData()) {
178 byte[] clientData = dataRes.getData();
179 Blob blob = Hibernate.createBlob(clientData);
180 setData(blob);
181 }
182 }
183 }
184 }
185 |
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